binutils-gdb/gdb/dictionary.c

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2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
/* Routines for name->symbol lookups in GDB.
2011-01-01 23:34:07 +08:00
Copyright (C) 2003, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
Contributed by David Carlton <carlton@bactrian.org> and by Kealia,
Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
#include "defs.h"
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
#include <ctype.h>
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
#include "gdb_obstack.h"
#include "symtab.h"
#include "buildsym.h"
#include "gdb_assert.h"
#include "dictionary.h"
/* This file implements dictionaries, which are tables that associate
symbols to names. They are represented by an opaque type 'struct
dictionary'. That type has various internal implementations, which
you can choose between depending on what properties you need
(e.g. fast lookup, order-preserving, expandable).
Each dictionary starts with a 'virtual function table' that
contains the functions that actually implement the various
operations that dictionaries provide. (Note, however, that, for
the sake of client code, we also provide some functions that can be
implemented generically in terms of the functions in the vtable.)
To add a new dictionary implementation <impl>, what you should do
is:
* Add a new element DICT_<IMPL> to dict_type.
* Create a new structure dictionary_<impl>. If your new
implementation is a variant of an existing one, make sure that
their structs have the same initial data members. Define accessor
macros for your new data members.
* Implement all the functions in dict_vector as static functions,
whose name is the same as the corresponding member of dict_vector
plus _<impl>. You don't have to do this for those members where
you can reuse existing generic functions
(e.g. add_symbol_nonexpandable, free_obstack) or in the case where
your new implementation is a variant of an existing implementation
and where the variant doesn't affect the member function in
question.
* Define a static const struct dict_vector dict_<impl>_vector.
* Define a function dict_create_<impl> to create these
gizmos. Add its declaration to dictionary.h.
To add a new operation <op> on all existing implementations, what
you should do is:
* Add a new member <op> to struct dict_vector.
* If there is useful generic behavior <op>, define a static
function <op>_something_informative that implements that behavior.
(E.g. add_symbol_nonexpandable, free_obstack.)
* For every implementation <impl> that should have its own specific
behavior for <op>, define a static function <op>_<impl>
implementing it.
* Modify all existing dict_vector_<impl>'s to include the appropriate
member.
* Define a function dict_<op> that looks up <op> in the dict_vector
and calls the appropriate function. Add a declaration for
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-08 03:36:19 +08:00
dict_<op> to dictionary.h. */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
/* An enum representing the various implementations of dictionaries.
Used only for debugging. */
enum dict_type
{
/* Symbols are stored in a fixed-size hash table. */
DICT_HASHED,
/* Symbols are stored in an expandable hash table. */
DICT_HASHED_EXPANDABLE,
/* Symbols are stored in a fixed-size array. */
DICT_LINEAR,
/* Symbols are stored in an expandable array. */
DICT_LINEAR_EXPANDABLE
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
};
/* The virtual function table. */
struct dict_vector
{
/* The type of the dictionary. This is only here to make debugging
a bit easier; it's not actually used. */
enum dict_type type;
/* The function to free a dictionary. */
void (*free) (struct dictionary *dict);
/* Add a symbol to a dictionary, if possible. */
void (*add_symbol) (struct dictionary *dict, struct symbol *sym);
/* Iterator functions. */
struct symbol *(*iterator_first) (const struct dictionary *dict,
struct dict_iterator *iterator);
struct symbol *(*iterator_next) (struct dict_iterator *iterator);
/* Functions to iterate over symbols with a given name. */
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct symbol *(*iter_match_first) (const struct dictionary *dict,
const char *name,
symbol_compare_ftype *equiv,
struct dict_iterator *iterator);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct symbol *(*iter_match_next) (const char *name,
symbol_compare_ftype *equiv,
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
struct dict_iterator *iterator);
/* A size function, for maint print symtabs. */
int (*size) (const struct dictionary *dict);
};
/* Now comes the structs used to store the data for different
implementations. If two implementations have data in common, put
the common data at the top of their structs, ordered in the same
way. */
struct dictionary_hashed
{
int nbuckets;
struct symbol **buckets;
};
struct dictionary_hashed_expandable
{
/* How many buckets we currently have. */
int nbuckets;
struct symbol **buckets;
/* How many syms we currently have; we need this so we will know
when to add more buckets. */
int nsyms;
};
struct dictionary_linear
{
int nsyms;
struct symbol **syms;
};
struct dictionary_linear_expandable
{
/* How many symbols we currently have. */
int nsyms;
struct symbol **syms;
/* How many symbols we can store before needing to reallocate. */
int capacity;
};
/* And now, the star of our show. */
struct dictionary
{
const struct dict_vector *vector;
union
{
struct dictionary_hashed hashed;
struct dictionary_hashed_expandable hashed_expandable;
struct dictionary_linear linear;
struct dictionary_linear_expandable linear_expandable;
}
data;
};
/* Accessor macros. */
#define DICT_VECTOR(d) (d)->vector
/* These can be used for DICT_HASHED_EXPANDABLE, too. */
#define DICT_HASHED_NBUCKETS(d) (d)->data.hashed.nbuckets
#define DICT_HASHED_BUCKETS(d) (d)->data.hashed.buckets
#define DICT_HASHED_BUCKET(d,i) DICT_HASHED_BUCKETS (d) [i]
#define DICT_HASHED_EXPANDABLE_NSYMS(d) (d)->data.hashed_expandable.nsyms
/* These can be used for DICT_LINEAR_EXPANDABLEs, too. */
#define DICT_LINEAR_NSYMS(d) (d)->data.linear.nsyms
#define DICT_LINEAR_SYMS(d) (d)->data.linear.syms
#define DICT_LINEAR_SYM(d,i) DICT_LINEAR_SYMS (d) [i]
#define DICT_LINEAR_EXPANDABLE_CAPACITY(d) \
(d)->data.linear_expandable.capacity
/* The initial size of a DICT_*_EXPANDABLE dictionary. */
#define DICT_EXPANDABLE_INITIAL_CAPACITY 10
/* This calculates the number of buckets we'll use in a hashtable,
given the number of symbols that it will contain. */
#define DICT_HASHTABLE_SIZE(n) ((n)/5 + 1)
/* Accessor macros for dict_iterators; they're here rather than
dictionary.h because code elsewhere should treat dict_iterators as
opaque. */
/* The dictionary that the iterator is associated to. */
#define DICT_ITERATOR_DICT(iter) (iter)->dict
/* For linear dictionaries, the index of the last symbol returned; for
hashed dictionaries, the bucket of the last symbol returned. */
#define DICT_ITERATOR_INDEX(iter) (iter)->index
/* For hashed dictionaries, this points to the last symbol returned;
otherwise, this is unused. */
#define DICT_ITERATOR_CURRENT(iter) (iter)->current
/* Declarations of functions for vectors. */
/* Functions that might work across a range of dictionary types. */
static void add_symbol_nonexpandable (struct dictionary *dict,
struct symbol *sym);
static void free_obstack (struct dictionary *dict);
/* Functions for DICT_HASHED and DICT_HASHED_EXPANDABLE
dictionaries. */
static struct symbol *iterator_first_hashed (const struct dictionary *dict,
struct dict_iterator *iterator);
static struct symbol *iterator_next_hashed (struct dict_iterator *iterator);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
static struct symbol *iter_match_first_hashed (const struct dictionary *dict,
const char *name,
symbol_compare_ftype *compare,
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
struct dict_iterator *iterator);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
static struct symbol *iter_match_next_hashed (const char *name,
symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator);
static unsigned int dict_hash (const char *string);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
/* Functions only for DICT_HASHED. */
static int size_hashed (const struct dictionary *dict);
/* Functions only for DICT_HASHED_EXPANDABLE. */
static void free_hashed_expandable (struct dictionary *dict);
static void add_symbol_hashed_expandable (struct dictionary *dict,
struct symbol *sym);
static int size_hashed_expandable (const struct dictionary *dict);
/* Functions for DICT_LINEAR and DICT_LINEAR_EXPANDABLE
dictionaries. */
static struct symbol *iterator_first_linear (const struct dictionary *dict,
struct dict_iterator *iterator);
static struct symbol *iterator_next_linear (struct dict_iterator *iterator);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
static struct symbol *iter_match_first_linear (const struct dictionary *dict,
const char *name,
symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
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struct dict_iterator *iterator);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
static struct symbol *iter_match_next_linear (const char *name,
symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
static int size_linear (const struct dictionary *dict);
/* Functions only for DICT_LINEAR_EXPANDABLE. */
static void free_linear_expandable (struct dictionary *dict);
static void add_symbol_linear_expandable (struct dictionary *dict,
struct symbol *sym);
/* Various vectors that we'll actually use. */
static const struct dict_vector dict_hashed_vector =
{
DICT_HASHED, /* type */
free_obstack, /* free */
add_symbol_nonexpandable, /* add_symbol */
iterator_first_hashed, /* iterator_first */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
iterator_next_hashed, /* iterator_next */
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
iter_match_first_hashed, /* iter_name_first */
iter_match_next_hashed, /* iter_name_next */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
size_hashed, /* size */
};
static const struct dict_vector dict_hashed_expandable_vector =
{
DICT_HASHED_EXPANDABLE, /* type */
free_hashed_expandable, /* free */
add_symbol_hashed_expandable, /* add_symbol */
iterator_first_hashed, /* iterator_first */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
iterator_next_hashed, /* iterator_next */
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
iter_match_first_hashed, /* iter_name_first */
iter_match_next_hashed, /* iter_name_next */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
size_hashed_expandable, /* size */
};
static const struct dict_vector dict_linear_vector =
{
DICT_LINEAR, /* type */
free_obstack, /* free */
add_symbol_nonexpandable, /* add_symbol */
iterator_first_linear, /* iterator_first */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
iterator_next_linear, /* iterator_next */
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
iter_match_first_linear, /* iter_name_first */
iter_match_next_linear, /* iter_name_next */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
size_linear, /* size */
};
static const struct dict_vector dict_linear_expandable_vector =
{
DICT_LINEAR_EXPANDABLE, /* type */
free_linear_expandable, /* free */
add_symbol_linear_expandable, /* add_symbol */
iterator_first_linear, /* iterator_first */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
iterator_next_linear, /* iterator_next */
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
iter_match_first_linear, /* iter_name_first */
iter_match_next_linear, /* iter_name_next */
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
size_linear, /* size */
};
/* Declarations of helper functions (i.e. ones that don't go into
vectors). */
static struct symbol *iterator_hashed_advance (struct dict_iterator *iter);
static void insert_symbol_hashed (struct dictionary *dict,
struct symbol *sym);
static void expand_hashtable (struct dictionary *dict);
/* The creation functions. */
/* Create a dictionary implemented via a fixed-size hashtable. All
memory it uses is allocated on OBSTACK; the environment is
initialized from SYMBOL_LIST. */
struct dictionary *
dict_create_hashed (struct obstack *obstack,
const struct pending *symbol_list)
{
struct dictionary *retval;
int nsyms = 0, nbuckets, i;
struct symbol **buckets;
const struct pending *list_counter;
retval = obstack_alloc (obstack, sizeof (struct dictionary));
DICT_VECTOR (retval) = &dict_hashed_vector;
/* Calculate the number of symbols, and allocate space for them. */
for (list_counter = symbol_list;
list_counter != NULL;
list_counter = list_counter->next)
{
nsyms += list_counter->nsyms;
}
nbuckets = DICT_HASHTABLE_SIZE (nsyms);
DICT_HASHED_NBUCKETS (retval) = nbuckets;
buckets = obstack_alloc (obstack, nbuckets * sizeof (struct symbol *));
memset (buckets, 0, nbuckets * sizeof (struct symbol *));
DICT_HASHED_BUCKETS (retval) = buckets;
/* Now fill the buckets. */
for (list_counter = symbol_list;
list_counter != NULL;
list_counter = list_counter->next)
{
for (i = list_counter->nsyms - 1; i >= 0; --i)
{
insert_symbol_hashed (retval, list_counter->symbol[i]);
}
}
return retval;
}
/* Create a dictionary implemented via a hashtable that grows as
necessary. The dictionary is initially empty; to add symbols to
it, call dict_add_symbol(). Call dict_free() when you're done with
it. */
extern struct dictionary *
dict_create_hashed_expandable (void)
{
struct dictionary *retval;
retval = xmalloc (sizeof (struct dictionary));
DICT_VECTOR (retval) = &dict_hashed_expandable_vector;
DICT_HASHED_NBUCKETS (retval) = DICT_EXPANDABLE_INITIAL_CAPACITY;
DICT_HASHED_BUCKETS (retval) = xcalloc (DICT_EXPANDABLE_INITIAL_CAPACITY,
sizeof (struct symbol *));
DICT_HASHED_EXPANDABLE_NSYMS (retval) = 0;
return retval;
}
/* Create a dictionary implemented via a fixed-size array. All memory
it uses is allocated on OBSTACK; the environment is initialized
from the SYMBOL_LIST. The symbols are ordered in the same order
that they're found in SYMBOL_LIST. */
struct dictionary *
dict_create_linear (struct obstack *obstack,
const struct pending *symbol_list)
{
struct dictionary *retval;
int nsyms = 0, i, j;
struct symbol **syms;
const struct pending *list_counter;
retval = obstack_alloc (obstack, sizeof (struct dictionary));
DICT_VECTOR (retval) = &dict_linear_vector;
/* Calculate the number of symbols, and allocate space for them. */
for (list_counter = symbol_list;
list_counter != NULL;
list_counter = list_counter->next)
{
nsyms += list_counter->nsyms;
}
DICT_LINEAR_NSYMS (retval) = nsyms;
syms = obstack_alloc (obstack, nsyms * sizeof (struct symbol *));
DICT_LINEAR_SYMS (retval) = syms;
/* Now fill in the symbols. Start filling in from the back, so as
to preserve the original order of the symbols. */
for (list_counter = symbol_list, j = nsyms - 1;
list_counter != NULL;
list_counter = list_counter->next)
{
for (i = list_counter->nsyms - 1;
i >= 0;
--i, --j)
{
syms[j] = list_counter->symbol[i];
}
}
return retval;
}
/* Create a dictionary implemented via an array that grows as
necessary. The dictionary is initially empty; to add symbols to
it, call dict_add_symbol(). Call dict_free() when you're done with
it. */
struct dictionary *
dict_create_linear_expandable (void)
{
struct dictionary *retval;
retval = xmalloc (sizeof (struct dictionary));
DICT_VECTOR (retval) = &dict_linear_expandable_vector;
DICT_LINEAR_NSYMS (retval) = 0;
DICT_LINEAR_EXPANDABLE_CAPACITY (retval)
= DICT_EXPANDABLE_INITIAL_CAPACITY;
DICT_LINEAR_SYMS (retval)
= xmalloc (DICT_LINEAR_EXPANDABLE_CAPACITY (retval)
* sizeof (struct symbol *));
return retval;
}
/* The functions providing the dictionary interface. */
/* Free the memory used by a dictionary that's not on an obstack. (If
any.) */
void
dict_free (struct dictionary *dict)
{
(DICT_VECTOR (dict))->free (dict);
}
/* Add SYM to DICT. DICT had better be expandable. */
void
dict_add_symbol (struct dictionary *dict, struct symbol *sym)
{
(DICT_VECTOR (dict))->add_symbol (dict, sym);
}
/* Initialize ITERATOR to point at the first symbol in DICT, and
return that first symbol, or NULL if DICT is empty. */
struct symbol *
dict_iterator_first (const struct dictionary *dict,
struct dict_iterator *iterator)
{
return (DICT_VECTOR (dict))->iterator_first (dict, iterator);
}
/* Advance ITERATOR, and return the next symbol, or NULL if there are
no more symbols. */
struct symbol *
dict_iterator_next (struct dict_iterator *iterator)
{
return (DICT_VECTOR (DICT_ITERATOR_DICT (iterator)))
->iterator_next (iterator);
}
struct symbol *
dict_iter_name_first (const struct dictionary *dict,
const char *name,
struct dict_iterator *iterator)
{
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
return dict_iter_match_first (dict, name, strcmp_iw, iterator);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
}
struct symbol *
dict_iter_name_next (const char *name, struct dict_iterator *iterator)
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
{
return dict_iter_match_next (name, strcmp_iw, iterator);
}
struct symbol *
dict_iter_match_first (const struct dictionary *dict,
const char *name, symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
{
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-06 06:22:53 +08:00
return (DICT_VECTOR (dict))->iter_match_first (dict, name,
compare, iterator);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
}
struct symbol *
dict_iter_match_next (const char *name, symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
return (DICT_VECTOR (DICT_ITERATOR_DICT (iterator)))
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
->iter_match_next (name, compare, iterator);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
}
int
dict_size (const struct dictionary *dict)
{
return (DICT_VECTOR (dict))->size (dict);
}
/* Now come functions (well, one function, currently) that are
implemented generically by means of the vtable. Typically, they're
rarely used. */
/* Test to see if DICT is empty. */
int
dict_empty (struct dictionary *dict)
{
struct dict_iterator iter;
return (dict_iterator_first (dict, &iter) == NULL);
}
/* The functions implementing the dictionary interface. */
/* Generic functions, where appropriate. */
static void
free_obstack (struct dictionary *dict)
{
/* Do nothing! */
}
static void
add_symbol_nonexpandable (struct dictionary *dict, struct symbol *sym)
{
internal_error (__FILE__, __LINE__,
2005-02-11 Andrew Cagney <cagney@gnu.org> Mark up error_no_arg, query, perror_with_name, complaint, and internal_error. * breakpoint.c, cp-abi.c, cp-namespace.c, cp-support.c: Update. * cris-tdep.c, dbxread.c, dictionary.c, dsrec.c: Update. * dummy-frame.c, dve3900-rom.c, dwarf2-frame.c, dwarf2expr.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, event-loop.c: Update. * exceptions.c, exec.c, f-lang.c, findvar.c, fork-child.c: Update. * frame-unwind.c, frame.c, frv-linux-tdep.c, frv-tdep.c: Update. * gdb_assert.h, gdbarch.c, gdbtypes.c, gnu-nat.c: Update. * go32-nat.c, hppa-tdep.c, hppabsd-nat.c, hpread.c: Update. * i386-linux-nat.c, i386-nat.c, i386-tdep.c, i386bsd-nat.c: Update. * i386fbsd-nat.c, inf-ptrace.c, inf-ttrace.c, infcall.c: Update. * infcmd.c, inflow.c, infptrace.c, infrun.c, inftarg.c: Update. * interps.c, language.c, linespec.c, linux-nat.c: Update. * m32r-linux-nat.c, m68k-tdep.c, m68kbsd-nat.c: Update. * m68klinux-nat.c, m88kbsd-nat.c, macroexp.c, macroscope.c: Update. * macrotab.c, maint.c, mdebugread.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mips64obsd-nat.c: Update. * mipsnbsd-nat.c, mn10300-tdep.c, monitor.c, nto-procfs.c: Update. * objc-lang.c, objfiles.c, objfiles.h, ocd.c, osabi.c: Update. * parse.c, ppc-bdm.c, ppc-linux-nat.c, ppc-sysv-tdep.c: Update. * ppcnbsd-nat.c, ppcobsd-nat.c, printcmd.c, procfs.c: Update. * regcache.c, reggroups.c, remote-e7000.c, remote-mips.c: Update. * remote-rdp.c, remote-sds.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote.c, rs6000-nat.c, rs6000-tdep.c: Update. * s390-nat.c, s390-tdep.c, sentinel-frame.c, serial.c: Update. * sh-tdep.c, sh3-rom.c, sh64-tdep.c, shnbsd-nat.c: Update. * solib-aix5.c, solib-svr4.c, solib.c, source.c: Update. * sparc-nat.c, stabsread.c, stack.c, symfile.c, symtab.c: Update. * symtab.h, target.c, tracepoint.c, ui-file.c, ui-out.c: Update. * utils.c, valops.c, valprint.c, vax-nat.c, vaxbsd-nat.c: Update. * win32-nat.c, xcoffread.c, xstormy16-tdep.c: Update. * cli/cli-cmds.c, cli/cli-logging.c, cli/cli-script.c: Update. * cli/cli-setshow.c, mi/mi-cmd-break.c, mi/mi-cmds.c: Update. * mi/mi-console.c, mi/mi-getopt.c, mi/mi-out.c: Update. * tui/tui-file.c, tui/tui-interp.c: Update.
2005-02-12 02:13:55 +08:00
_("dict_add_symbol: non-expandable dictionary"));
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
}
/* Functions for DICT_HASHED and DICT_HASHED_EXPANDABLE. */
static struct symbol *
iterator_first_hashed (const struct dictionary *dict,
struct dict_iterator *iterator)
{
DICT_ITERATOR_DICT (iterator) = dict;
DICT_ITERATOR_INDEX (iterator) = -1;
return iterator_hashed_advance (iterator);
}
static struct symbol *
iterator_next_hashed (struct dict_iterator *iterator)
{
struct symbol *next;
next = DICT_ITERATOR_CURRENT (iterator)->hash_next;
if (next == NULL)
return iterator_hashed_advance (iterator);
else
{
DICT_ITERATOR_CURRENT (iterator) = next;
return next;
}
}
static struct symbol *
iterator_hashed_advance (struct dict_iterator *iterator)
{
const struct dictionary *dict = DICT_ITERATOR_DICT (iterator);
int nbuckets = DICT_HASHED_NBUCKETS (dict);
int i;
for (i = DICT_ITERATOR_INDEX (iterator) + 1; i < nbuckets; ++i)
{
struct symbol *sym = DICT_HASHED_BUCKET (dict, i);
if (sym != NULL)
{
DICT_ITERATOR_INDEX (iterator) = i;
DICT_ITERATOR_CURRENT (iterator) = sym;
return sym;
}
}
return NULL;
}
static struct symbol *
iter_match_first_hashed (const struct dictionary *dict, const char *name,
symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
unsigned int hash_index = dict_hash (name) % DICT_HASHED_NBUCKETS (dict);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
struct symbol *sym;
DICT_ITERATOR_DICT (iterator) = dict;
/* Loop through the symbols in the given bucket, breaking when SYM
first matches. If SYM never matches, it will be set to NULL;
either way, we have the right return value. */
for (sym = DICT_HASHED_BUCKET (dict, hash_index);
sym != NULL;
sym = sym->hash_next)
{
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
/* Warning: the order of arguments to compare matters! */
if (compare (SYMBOL_SEARCH_NAME (sym), name) == 0)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
break;
}
}
DICT_ITERATOR_CURRENT (iterator) = sym;
return sym;
}
static struct symbol *
iter_match_next_hashed (const char *name, symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
struct symbol *next;
for (next = DICT_ITERATOR_CURRENT (iterator)->hash_next;
next != NULL;
next = next->hash_next)
{
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
if (compare (SYMBOL_SEARCH_NAME (next), name) == 0)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
break;
}
DICT_ITERATOR_CURRENT (iterator) = next;
return next;
}
/* Insert SYM into DICT. */
static void
insert_symbol_hashed (struct dictionary *dict,
struct symbol *sym)
{
unsigned int hash_index;
struct symbol **buckets = DICT_HASHED_BUCKETS (dict);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
hash_index =
dict_hash (SYMBOL_SEARCH_NAME (sym)) % DICT_HASHED_NBUCKETS (dict);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
sym->hash_next = buckets[hash_index];
buckets[hash_index] = sym;
}
static int
size_hashed (const struct dictionary *dict)
{
return DICT_HASHED_NBUCKETS (dict);
}
/* Functions only for DICT_HASHED_EXPANDABLE. */
static void
free_hashed_expandable (struct dictionary *dict)
{
xfree (DICT_HASHED_BUCKETS (dict));
xfree (dict);
}
static void
add_symbol_hashed_expandable (struct dictionary *dict,
struct symbol *sym)
{
int nsyms = ++DICT_HASHED_EXPANDABLE_NSYMS (dict);
if (DICT_HASHTABLE_SIZE (nsyms) > DICT_HASHED_NBUCKETS (dict))
expand_hashtable (dict);
insert_symbol_hashed (dict, sym);
DICT_HASHED_EXPANDABLE_NSYMS (dict) = nsyms;
}
static int
size_hashed_expandable (const struct dictionary *dict)
{
return DICT_HASHED_EXPANDABLE_NSYMS (dict);
}
static void
expand_hashtable (struct dictionary *dict)
{
int old_nbuckets = DICT_HASHED_NBUCKETS (dict);
struct symbol **old_buckets = DICT_HASHED_BUCKETS (dict);
int new_nbuckets = 2*old_nbuckets + 1;
struct symbol **new_buckets = xcalloc (new_nbuckets,
sizeof (struct symbol *));
int i;
DICT_HASHED_NBUCKETS (dict) = new_nbuckets;
DICT_HASHED_BUCKETS (dict) = new_buckets;
for (i = 0; i < old_nbuckets; ++i)
{
struct symbol *sym, *next_sym;
sym = old_buckets[i];
if (sym != NULL)
{
for (next_sym = sym->hash_next;
next_sym != NULL;
next_sym = sym->hash_next)
{
insert_symbol_hashed (dict, sym);
sym = next_sym;
}
insert_symbol_hashed (dict, sym);
}
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
}
xfree (old_buckets);
}
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
/* Produce an unsigned hash value from STRING0 that is consistent
with strcmp_iw, strcmp, and, at least on Ada symbols, wild_match.
That is, two identifiers equivalent according to any of those three
comparison operators hash to the same value. */
static unsigned int
dict_hash (const char *string0)
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
{
/* The Ada-encoded version of a name P1.P2...Pn has either the form
P1__P2__...Pn<suffix> or _ada_P1__P2__...Pn<suffix> (where the Pi
are lower-cased identifiers). The <suffix> (which can be empty)
encodes additional information about the denoted entity. This
routine hashes such names to msymbol_hash_iw(Pn). It actually
does this for a superset of both valid Pi and of <suffix>, but
in other cases it simply returns msymbol_hash_iw(STRING0). */
const char *string;
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
unsigned int hash;
string = string0;
if (*string == '_')
{
if (strncmp (string, "_ada_", 5) == 0)
string += 5;
else
return msymbol_hash_iw (string0);
}
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
hash = 0;
while (*string)
{
switch (*string)
{
case '$':
case '.':
case 'X':
if (string0 == string)
return msymbol_hash_iw (string0);
else
return hash;
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
case ' ':
case '(':
return msymbol_hash_iw (string0);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
case '_':
if (string[1] == '_' && string != string0)
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
{
int c = string[2];
if ((c < 'a' || c > 'z') && c != 'O')
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
return hash;
hash = 0;
string += 2;
break;
}
/* FALL THROUGH */
default:
hash = hash * 67 + *string - 113;
string += 1;
break;
}
}
return hash;
}
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
/* Functions for DICT_LINEAR and DICT_LINEAR_EXPANDABLE. */
static struct symbol *
iterator_first_linear (const struct dictionary *dict,
struct dict_iterator *iterator)
{
DICT_ITERATOR_DICT (iterator) = dict;
DICT_ITERATOR_INDEX (iterator) = 0;
return DICT_LINEAR_NSYMS (dict) ? DICT_LINEAR_SYM (dict, 0) : NULL;
}
static struct symbol *
iterator_next_linear (struct dict_iterator *iterator)
{
const struct dictionary *dict = DICT_ITERATOR_DICT (iterator);
if (++DICT_ITERATOR_INDEX (iterator) >= DICT_LINEAR_NSYMS (dict))
return NULL;
else
return DICT_LINEAR_SYM (dict, DICT_ITERATOR_INDEX (iterator));
}
static struct symbol *
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
iter_match_first_linear (const struct dictionary *dict,
const char *name, symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
DICT_ITERATOR_DICT (iterator) = dict;
DICT_ITERATOR_INDEX (iterator) = -1;
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
return iter_match_next_linear (name, compare, iterator);
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
}
static struct symbol *
iter_match_next_linear (const char *name, symbol_compare_ftype *compare,
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
2010-10-07 14:53:44 +08:00
struct dict_iterator *iterator)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
const struct dictionary *dict = DICT_ITERATOR_DICT (iterator);
int i, nsyms = DICT_LINEAR_NSYMS (dict);
struct symbol *sym, *retval = NULL;
for (i = DICT_ITERATOR_INDEX (iterator) + 1; i < nsyms; ++i)
{
sym = DICT_LINEAR_SYM (dict, i);
Extend hashed symbol dictionaries to work with Ada This patch allows Ada to speed up symbol lookup by using the facilities in dictionary.[ch] for hashed lookups. First, we generalize dictionary search to allow clients to specify any matching function compatible with the hashing function. Next, we modify the hashing algorithm so that symbols that wild-match a name hash to the same value. Finally, we modify Ada symbol lookup to use these facilities. Because this patch touches on a hashing algorithm used by other languages, I took the precaution of doing a speed test on a list of about 12000 identifiers (repeatedly inserting all of them into a table and then doing a lookup on a million names at random, thus testing the speed of the hashing algorithm and how well it distributed names). There was actually a slight speedup, probably as a result of open- coding some of the tests in msymbol_hash_iw. By design, the revised hashing algorithm produces the same results as the original on most "normal" C identifiers. We considered augmenting the dictionary interface still further by allowing different hashing algorithms for different dictionaries, based on the (supposed) language of the symbols in that dictionary. While this produced better isolation of the changes to Ada programs, the additional flexibility also complicated the dictionary interface. I'd prefer to keep things simple for now. Tested w/o regressions on Linux i686. ChangeLog: gdb/ * ada-lang.c (ada_match_name): Use new API for wild_match. (wild_match): Change API to be consistent with that of strcmp_iw; return 0 for a match, and switch operand order. (full_match): New function. (ada_add_block_symbols): Use dict_iter_match_{first,next} for matching to allow use of hashing. * dictionary.c (struct dict_vector): Generalize iter_name_first, iter_name_next ot iter_match_first, iter_match_next. (iter_name_first_hashed): Replace with iter_match_first_hashed. (iter_name_next_hashed): Replace with iter_match_next_hashed. (iter_name_first_linear): Replace with iter_match_first_linear. (iter_name_next_linear): Replace with iter_match_next_linear. (dict_iter_name_first): Re-implement to use dict_iter_match_first. (dict_iter_name_next): Re-implement to use dict_iter_match_next. (dict_iter_match_first): New function. (dict_iter_match_next): New function. (dict_hash): New function. * dictionary.h (dict_iter_match_first, dict_iter_match_next): Declare. * psymtab.c (ada_lookup_partial_symbol): Use new wild_match API.
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if (compare (SYMBOL_SEARCH_NAME (sym), name) == 0)
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
{
retval = sym;
break;
}
}
DICT_ITERATOR_INDEX (iterator) = i;
return retval;
}
static int
size_linear (const struct dictionary *dict)
{
return DICT_LINEAR_NSYMS (dict);
}
/* Functions only for DICT_LINEAR_EXPANDABLE. */
static void
free_linear_expandable (struct dictionary *dict)
{
xfree (DICT_LINEAR_SYMS (dict));
xfree (dict);
}
static void
add_symbol_linear_expandable (struct dictionary *dict,
struct symbol *sym)
{
int nsyms = ++DICT_LINEAR_NSYMS (dict);
/* Do we have enough room? If not, grow it. */
if (nsyms > DICT_LINEAR_EXPANDABLE_CAPACITY (dict))
{
DICT_LINEAR_EXPANDABLE_CAPACITY (dict) *= 2;
DICT_LINEAR_SYMS (dict)
= xrealloc (DICT_LINEAR_SYMS (dict),
DICT_LINEAR_EXPANDABLE_CAPACITY (dict)
* sizeof (struct symbol *));
}
2003-06-11 David Carlton <carlton@bactrian.org> * dictionary.h: New. * dictionary.c: New. * block.h: Add opaque declaration for struct dictionary. (struct block): Add 'dict' member; delete 'hashtable', 'nsyms', 'sym' members. (BLOCK_DICT): New macro. Delete macros BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM, BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE, BLOCK_SHOULD_SORT. (ALL_BLOCK_SYMBOLS): Update definition. * Makefile.in (SFILES): Add dictionary.c. (dictionary_h): New. (COMMON_OBS): Add dictionary.o. (dictionary.o): New. (ada-lang.o): Depend on dictionary_h. (buildsym.o, coffread.o, jv-lang.o, mdebugread.o, objfiles.o) (stack.o, symmisc.o, symtab.o, tracepoint.o, valops.o) (mi-cmd-stack.o): Ditto. (gdbtk-cmds.o): Update dependencies. (gdbtk-stack.o): Ditto. * ada-lang.c: Include dictionary.h. (symtab_for_sym): Update uses of ALL_BLOCK_SYMBOLS. (fill_in_ada_prototype, debug_print_block): Ditto. (ada_add_block_symbols): Update uses of ALL_BLOCK_SYMBOLS; replace explicit iteration by use of ALL_BLOCK_SYMBOLS. Delete variable 'is_sorted'. * mdebugread.c: Include dictionary.h. (struct parse_stack): Delete 'maxsyms' member. (parse_symbol): Update calls to new_block. Delete calls to shrink_block. Use dictionary methods. (psymtab_to_symtab_1): Delete calls to sort_symtab_syms. Update calls to new_symtab. Don't maintain maxsyms data. (mylookup_symbol): Update use of ALL_BLOCK_SYMBOLS. (add_symbol): Just call dict_add_symbol. (new_symtab): Delete 'maxsyms' argument. (new_symtab): Update calls to new_block. (new_block): Delete 'maxsyms' argument; add 'function' argument. (shrink_block): Delete function. (fixup_sigtramp): Update call to new_block. Add symbol via dict_add_symbol. * jv-lang.c: Include dictionary.h. (get_java_class_symtab): Set the BLOCK_DICT of the blocks appropriately. Set class_symtab->free_func. Make sure the blockvector is big enough to hold two blocks. (add_class_symtab_symbol): Use dictionary methods. (free_class_block): New function. (type_from_class): Replace explicit iteration by ALL_BLOCK_SYMBOLS. * symtab.h (struct symtab): Replace 'free_ptr' method by 'free_func'. * dwarf2read.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * dwarfread.c (psymtab_to_symtab_1): Delete call to sort_symtab_syms. * coffread.c (coff_symfile_read): Delete call to sort_symtab_syms. Include dictionary.h. (patch_opaque_types): Update use of ALL_BLOCK_SYMBOLS. * dbxread.c (dbx_psymtab_to_symtab_1): Delete call to sort_symtab_syms. * objfiles.c: Include dictionary.h. (objfile_relocate): Update use of ALL_BLOCK_SYMBOLS. * buildsym.c: Include dictionary.h. (finish_block): Use dictionary methods. (end_symtab): Set free_func to NULL, not free_ptr. * tracepoint.c: Include dictionary.h. (add_local_symbols): Update use of ALL_BLOCK_SYMBOLS. (scope_info): Ditto. * stack.c: Include dictionary.h. (print_block_frame_locals): Update use of ALL_BLOCK_SYMBOLS. (print_block_frame_labels, print_frame_arg_vars) (print_frame_args): Ditto. * symmisc.c (free_symtab_block): Use dictionary methods. (dump_symtab): Ditto. (free_symtab): Replace use of 'free_ptr' by 'free_func'. Include dictionary.h. * symfile.h: Delete declarations of sort_block_syms, sort_symtab_syms. * symfile.c (sort_block_syms): Delete. (sort_symtab_syms): Delete. * symtab.c: Include dictionary.h. (lookup_block_symbol): Use dictionary iterators. (find_pc_sect_symtab): Update use of ALL_BLOCK_SYMBOLS. (search_symbols, make_symbol_completion_list): Ditto. (make_symbol_overload_list): Ditto. * valops.c (value_of_local): Use dict_empty. Include dictionary.h. 2003-06-11 David Carlton <carlton@bactrian.org> * generic/gdbtk-stack.c: Include dictionary.h. (gdb_block_vars): Update use of ALL_BLOCK_SYMBOLS. (gdb_get_blocks, gdb_get_vars_command): Ditto. * generic/gdbtk-cmds.c: Include dictionary.h. (gdb_listfuncs): Update use of ALL_BLOCK_SYMBOLS. 2003-06-11 David Carlton <carlton@bactrian.org> * mi-cmd-stack.c: Include dictionary.h. (list_args_or_locals): Update use of ALL_BLOCK_SYMBOLS.
2003-06-12 07:29:49 +08:00
DICT_LINEAR_SYM (dict, nsyms - 1) = sym;
}