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eb6dce11fc
Cleaning up the subsym_hash memory is a real pain. Keys and values entered into the table are quite diverse. In some cases the key is allocated and thus needs to be freed, in others the key is a const string. Values are similar, and in some cases not even a string. Tidy this by inserting a new subsym_ent_t that describes key/value type. This meant the math_hash table was no longer needed. The patch also tidies how math functions are called, those that are supposed to return int now no longer return their value in a float. * config/tc-tic54x.c (math_hash): Delete. (subsym_proc_entry): Move earlier, make proc a union, merge with.. (math_proc_entry): ..this. Delete type. (math_procs): Merge into subsym_procs. (subsym_ent_t): New. Use this type in subsym_hash.. (stag_add_field_symbols, tic54x_var, tic54x_macro_info): ..here.. (md_begin, subsym_create_or_replace, subsym_lookup): ..and here.. (subsym_substitute): ..and here. Adjust subsym_proc_entry function calls. Free replacement when not returned. (subsym_get_arg): Adjust subsym_lookup. (free_subsym_ent, subsym_htab_create ): New functions, use when creating subsym_hash. (free_local_label_ent, local_label_htab_create): Similarly. (tic54x_remove_local_label): Delete. (tic54x_clear_local_labels): Simplify. (tic54x_asg): Use notes obstack to dup strings. (tic54x_eval): Likewise. (subsym_ismember): Likewise. (math_cvi, math_int, math_sgn): Return int. (tic54x_macro_start): Decrement macro_level before calling as_fatal. (tic54x_md_end): New function. * config/tc-tic54h.c (tic54x_md_end): Declare. (md_end): Define.
138 lines
4.5 KiB
C
138 lines
4.5 KiB
C
/* tc-tic54x.h -- Header file for tc-tic54x.c
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Copyright (C) 1999-2022 Free Software Foundation, Inc.
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Contributed by Timothy Wall (twall@alum.mit.edu)
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef _TC_TIC54X_H_
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#define _TC_TIC54X_H_
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/* select the proper coff format (see obj-coff.h) */
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#define TC_TIC54X
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#define TARGET_BYTES_BIG_ENDIAN 0
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#define OCTETS_PER_BYTE_POWER 1
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#define TARGET_ARCH bfd_arch_tic54x
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#define WORKING_DOT_WORD 1
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#define MAX_OPERANDS 4
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#define PARALLEL_SEPARATOR '|'
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#define LABELS_WITHOUT_COLONS 1
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#undef LOCAL_LABELS_FB
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/* accept 0FFFFh, 1010b, etc. */
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#define NUMBERS_WITH_SUFFIX 1
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/* $ is section program counter */
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#define DOLLAR_DOT 1
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/* accept parallel lines like
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add #1,a || ld #1, b
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(may also be split across lines)
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*/
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#define DOUBLEBAR_PARALLEL 1
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/* affects preprocessor */
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#define KEEP_WHITE_AROUND_COLON 1
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struct bit_info
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{
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segT seg;
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#define TYPE_SPACE 0
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#define TYPE_BES 1
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#define TYPE_FIELD 2
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int type;
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symbolS *sym;
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valueT value;
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char *where;
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int offset;
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};
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/* We sometimes need to keep track of bit offsets within words */
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#define TC_FRAG_TYPE int
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#define TC_FRAG_INIT(FRAGP, MAX_BYTES) do {(FRAGP)->tc_frag_data = 0;}while (0)
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/* Tell GAS whether the given token is indeed a code label.
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Note - we make of the knowledge that this macro will be called from
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read.c:read_a_source_file() in that we also pass the local variable
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line_start. */
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#define TC_START_LABEL_WITHOUT_COLON(NUL_CHAR, NEXT_CHAR) \
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tic54x_start_label (line_start, NUL_CHAR, NEXT_CHAR)
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extern int tic54x_start_label (char *, int, int);
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/* custom handling for relocations in cons expressions */
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#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
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tic54x_cons_fix_new (FRAG, OFF, LEN, EXP, RELOC)
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extern void tic54x_cons_fix_new (fragS *, int, int, expressionS *,
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bfd_reloc_code_real_type);
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/* Define md_number_to_chars as the appropriate standard big endian or
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little endian function. Mostly littleendian, but longwords and floats are
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stored MS word first.
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*/
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#define md_number_to_chars tic54x_number_to_chars
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extern void tic54x_number_to_chars (char *, valueT, int);
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#define tc_adjust_symtab() tic54x_adjust_symtab()
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extern void tic54x_adjust_symtab (void);
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#define tc_unrecognized_line(ch) tic54x_unrecognized_line(ch)
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extern int tic54x_unrecognized_line (int ch);
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#define md_parse_name(s,e,m,c) tic54x_parse_name(s,e)
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extern int tic54x_parse_name (char *name, expressionS *e);
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#define md_undefined_symbol(s) tic54x_undefined_symbol(s)
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extern symbolS *tic54x_undefined_symbol (char *name);
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#define md_macro_start() tic54x_macro_start()
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extern void tic54x_macro_start (void);
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#define md_macro_end() tic54x_macro_end()
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extern void tic54x_macro_end (void);
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#define md_macro_info(args) tic54x_macro_info(args)
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struct macro_struct;
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extern void tic54x_macro_info (const struct macro_struct *);
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#define tc_frob_label(sym) tic54x_define_label (sym)
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extern void tic54x_define_label (symbolS *);
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#define md_start_line_hook() tic54x_start_line_hook()
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extern void tic54x_start_line_hook (void);
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#define md_estimate_size_before_relax(f,s) \
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tic54x_estimate_size_before_relax(f,s)
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extern int tic54x_estimate_size_before_relax(fragS *, segT);
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#define md_relax_frag(seg, f,s) tic54x_relax_frag(f,s)
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extern int tic54x_relax_frag(fragS *, long);
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#define md_convert_frag(b,s,f) tic54x_convert_frag(b,s,f)
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extern void tic54x_convert_frag(bfd *, segT, fragS *);
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/* Other things we don't support... */
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/* Define away the call to md_operand in the expression parsing code.
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This is called whenever the expression parser can't parse the input
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and gives the assembler backend a chance to deal with it instead. */
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#define md_operand(X)
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/* spruce up the listing output */
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#define LISTING_WORD_SIZE 2
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extern void tic54x_global (int);
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extern void tic54x_md_end (void);
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#define md_end tic54x_md_end
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#endif
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