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* xcoffread.c: Include psymtab.h.
	(xcoff_sym_fns): Update.
	* symtab.h (struct partial_symbol): Remove.
	(PSYMBOL_DOMAIN, PSYMBOL_CLASS): Remove.
	(struct partial_symtab): Remove.
	(PSYMTAB_TO_SYMTAB): Remove.
	(lookup_partial_symbol, lookup_partial_symtab, find_pc_psymtab)
	(find_pc_sect_psymtab): Remove.
	(find_pc_sect_symtab_via_partial): Declare.
	(find_pc_psymtab, find_pc_sect_psymbol, psymtab_to_symtab)
	(find_main_psymtab): Remove.
	(find_main_filename): Declare.
	(fixup_psymbol_section): Remove.
	(fixup_section): Declare.
	* symtab.c: Include psymtab.h.
	(lookup_symtab): Use lookup_symtab method.
	(lookup_partial_symtab): Remove.
	(find_pc_sect_psymtab_closer): Remove.
	(find_pc_sect_psymtab): Remove.
	(find_pc_sect_symtab_via_partial): New function.
	(find_pc_psymtab, find_pc_sect_psymbol, find_pc_psymbol): Remove.
	(fixup_section): No longer static.
	(fixup_psymbol_section): Remove.
	(lookup_symbol_aux): Use lookup_symbol_aux_quick.
	(lookup_global_symbol_from_objfile): Likewise.
	(lookup_symbol_aux_psymtabs): Remove.
	(lookup_symbol_aux_quick): New function.
	(lookup_symbol_global): Use lookup_symbol_aux_quick.
	(lookup_partial_symbol): Remove.
	(basic_lookup_transparent_type_quick): New function.
	(basic_lookup_transparent_type): Use it.
	(find_main_psymtab): Remove.
	(find_main_filename): New function.
	(find_pc_sect_symtab): Use find_pc_sect_symtab method.
	(find_line_symtab): Use expand_symtabs_with_filename method.
	(output_partial_symbol_filename): New function.
	(sources_info): Use map_partial_symbol_filenames.
	(struct search_symbols_data): New type.
	(search_symbols_file_matches): New function.
	(search_symbols_name_matches): Likewise.
	(search_symbols): Use expand_symtabs_matching method.
	(struct add_name_data): Rename from add_macro_name_data.
	(add_macro_name): Update.
	(add_partial_symbol_name): New function.
	(default_make_symbol_completion_list): Use
	map_partial_symbol_names.
	(struct add_partial_symbol_name): New type.
	(maybe_add_partial_symtab_filename): New function.
	(make_source_files_completion_list): Use
	map_partial_symbol_filenames.
	(expand_line_sal): Use expand_symtabs_with_filename method.
	* symmisc.c: Include psymtab.h.
	(print_objfile_statistics): Use print_stats method.
	(dump_objfile): Use dump method.
	(dump_psymtab, maintenance_print_psymbols)
	(maintenance_info_psymtabs, maintenance_check_symtabs)
	(extend_psymbol_list): Remove.
	* symfile.h (struct quick_symbol_functions): New struct.
	(struct sym_fns) <qf>: New field.
	(sort_pst_symbols): Remove.
	(increment_reading_symtab): Declare.
	* symfile.c: Include psymtab.h.
	(compare_psymbols, sort_pst_symbols): Remove.
	(psymtab_to_symtab): Remove.
	(increment_reading_symtab): New function.
	(symbol_file_add_with_addrs_or_offsets): Use expand_all_symtabs
	method.
	(set_initial_language): Use find_main_filename.
	(allocate_psymtab, discard_psymtab, cashier_psymtab): Remove.
	(free_named_symtabs): Remove unused code.
	(start_psymtab_common, add_psymbol_to_bcache)
	(append_psymbol_to_list, add_psymbol_to_list, init_psymbol_list):
	Remove.
	* stack.c: Include psymtab.h, symfile.h.
	(backtrace_command_1): Use find_pc_sect_symtab_via_partial.
	* source.h (psymtab_to_fullname): Don't declare.
	* source.c: Include psymtab.h.
	(select_source_symtab): Use find_last_source_symtab method.
	(forget_cached_source_info): Use forget_cached_source_info
	method.
	(find_and_open_source): No longer static.
	(psymtab_to_fullname): Remove.
	* somread.c: Include psymtab.h.
	(som_sym_fns): Update.
	* psympriv.h: New file.
	* psymtab.h: New file.
	* psymtab.c: New file.
	* objfiles.h: (ALL_OBJFILE_PSYMTABS): Remove.
	(ALL_PSYMTABS, ALL_PSPACE_PSYMTABS): Likewise.
	* objfiles.c: Include psymtab.h.
	(objfile_relocate1): Use relocate method.
	(objfile_has_partial_symbols): Use has_symbols method.
	* mipsread.c: Include psymtab.h.
	(ecoff_sym_fns): Update.
	* mi/mi-cmd-file.c: Include psymtab.h.
	(print_partial_file_name): New function.
	(mi_cmd_file_list_exec_source_files): Use
	map_partial_symbol_filenames.
	* mdebugread.c: Include psympriv.h.
	* machoread.c: Include psympriv.h.
	(macho_sym_fns): Update.
	* m2-exp.y (yylex): Use lookup_symtab.
	* elfread.c: Include psympriv.h.
	(elf_sym_fns): Update.
	* dwarf2read.c: Include psympriv.h.
	* dbxread.c: Include psympriv.h.
	(aout_sym_fns): Update.
	* cp-support.c: Include psymtab.h.
	(read_in_psymtabs): Remove.
	(make_symbol_overload_list_qualified): Use
	expand_symtabs_for_function method.
	* coffread.c: Include psympriv.h.
	(coff_sym_fns): Update.
	* blockframe.c: Include psymtab.h.
	(find_pc_partial_function): Use find_pc_sect_symtab method.
	* ada-lang.h (ada_update_initial_language): Update.
	* ada-lang.c: Include psymtab.h.
	(ada_update_initial_language): Remove 'main_pst' argument.
	(ada_lookup_partial_symbol): Remove.
	(struct ada_psym_data): New type.
	(ada_add_psyms): New function.
	(ada_add_non_local_symbols): Use map_ada_symtabs method.
	(struct add_partial_datum): New type.
	(ada_add_partial_symbol_completions): New function.
	(ada_make_symbol_completion_list): Use map_partial_symbol_names.
	(ada_exception_support_info_sniffer): Update.
	* Makefile.in (SFILES): Add psymtab.c.
	(COMMON_OBS): Add psymtab.o.
	(HFILES_NO_SRCDIR): Add psymtab.h, psympriv.h.
gdb/doc
	* gdbint.texinfo (Symbol Handling): Update.
This commit is contained in:
Tom Tromey 2010-03-10 18:20:08 +00:00
parent a2a5469e79
commit ccefe4c44c
32 changed files with 2773 additions and 2064 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

132
gdb/ChangeLog
View File

@ -1,3 +1,135 @@
2010-03-10 Tom Tromey <tromey@redhat.com>
* xcoffread.c: Include psymtab.h.
(xcoff_sym_fns): Update.
* symtab.h (struct partial_symbol): Remove.
(PSYMBOL_DOMAIN, PSYMBOL_CLASS): Remove.
(struct partial_symtab): Remove.
(PSYMTAB_TO_SYMTAB): Remove.
(lookup_partial_symbol, lookup_partial_symtab, find_pc_psymtab)
(find_pc_sect_psymtab): Remove.
(find_pc_sect_symtab_via_partial): Declare.
(find_pc_psymtab, find_pc_sect_psymbol, psymtab_to_symtab)
(find_main_psymtab): Remove.
(find_main_filename): Declare.
(fixup_psymbol_section): Remove.
(fixup_section): Declare.
* symtab.c: Include psymtab.h.
(lookup_symtab): Use lookup_symtab method.
(lookup_partial_symtab): Remove.
(find_pc_sect_psymtab_closer): Remove.
(find_pc_sect_psymtab): Remove.
(find_pc_sect_symtab_via_partial): New function.
(find_pc_psymtab, find_pc_sect_psymbol, find_pc_psymbol): Remove.
(fixup_section): No longer static.
(fixup_psymbol_section): Remove.
(lookup_symbol_aux): Use lookup_symbol_aux_quick.
(lookup_global_symbol_from_objfile): Likewise.
(lookup_symbol_aux_psymtabs): Remove.
(lookup_symbol_aux_quick): New function.
(lookup_symbol_global): Use lookup_symbol_aux_quick.
(lookup_partial_symbol): Remove.
(basic_lookup_transparent_type_quick): New function.
(basic_lookup_transparent_type): Use it.
(find_main_psymtab): Remove.
(find_main_filename): New function.
(find_pc_sect_symtab): Use find_pc_sect_symtab method.
(find_line_symtab): Use expand_symtabs_with_filename method.
(output_partial_symbol_filename): New function.
(sources_info): Use map_partial_symbol_filenames.
(struct search_symbols_data): New type.
(search_symbols_file_matches): New function.
(search_symbols_name_matches): Likewise.
(search_symbols): Use expand_symtabs_matching method.
(struct add_name_data): Rename from add_macro_name_data.
(add_macro_name): Update.
(add_partial_symbol_name): New function.
(default_make_symbol_completion_list): Use
map_partial_symbol_names.
(struct add_partial_symbol_name): New type.
(maybe_add_partial_symtab_filename): New function.
(make_source_files_completion_list): Use
map_partial_symbol_filenames.
(expand_line_sal): Use expand_symtabs_with_filename method.
* symmisc.c: Include psymtab.h.
(print_objfile_statistics): Use print_stats method.
(dump_objfile): Use dump method.
(dump_psymtab, maintenance_print_psymbols)
(maintenance_info_psymtabs, maintenance_check_symtabs)
(extend_psymbol_list): Remove.
* symfile.h (struct quick_symbol_functions): New struct.
(struct sym_fns) <qf>: New field.
(sort_pst_symbols): Remove.
(increment_reading_symtab): Declare.
* symfile.c: Include psymtab.h.
(compare_psymbols, sort_pst_symbols): Remove.
(psymtab_to_symtab): Remove.
(increment_reading_symtab): New function.
(symbol_file_add_with_addrs_or_offsets): Use expand_all_symtabs
method.
(set_initial_language): Use find_main_filename.
(allocate_psymtab, discard_psymtab, cashier_psymtab): Remove.
(free_named_symtabs): Remove unused code.
(start_psymtab_common, add_psymbol_to_bcache)
(append_psymbol_to_list, add_psymbol_to_list, init_psymbol_list):
Remove.
* stack.c: Include psymtab.h, symfile.h.
(backtrace_command_1): Use find_pc_sect_symtab_via_partial.
* source.h (psymtab_to_fullname): Don't declare.
* source.c: Include psymtab.h.
(select_source_symtab): Use find_last_source_symtab method.
(forget_cached_source_info): Use forget_cached_source_info
method.
(find_and_open_source): No longer static.
(psymtab_to_fullname): Remove.
* somread.c: Include psymtab.h.
(som_sym_fns): Update.
* psympriv.h: New file.
* psymtab.h: New file.
* psymtab.c: New file.
* objfiles.h: (ALL_OBJFILE_PSYMTABS): Remove.
(ALL_PSYMTABS, ALL_PSPACE_PSYMTABS): Likewise.
* objfiles.c: Include psymtab.h.
(objfile_relocate1): Use relocate method.
(objfile_has_partial_symbols): Use has_symbols method.
* mipsread.c: Include psymtab.h.
(ecoff_sym_fns): Update.
* mi/mi-cmd-file.c: Include psymtab.h.
(print_partial_file_name): New function.
(mi_cmd_file_list_exec_source_files): Use
map_partial_symbol_filenames.
* mdebugread.c: Include psympriv.h.
* machoread.c: Include psympriv.h.
(macho_sym_fns): Update.
* m2-exp.y (yylex): Use lookup_symtab.
* elfread.c: Include psympriv.h.
(elf_sym_fns): Update.
* dwarf2read.c: Include psympriv.h.
* dbxread.c: Include psympriv.h.
(aout_sym_fns): Update.
* cp-support.c: Include psymtab.h.
(read_in_psymtabs): Remove.
(make_symbol_overload_list_qualified): Use
expand_symtabs_for_function method.
* coffread.c: Include psympriv.h.
(coff_sym_fns): Update.
* blockframe.c: Include psymtab.h.
(find_pc_partial_function): Use find_pc_sect_symtab method.
* ada-lang.h (ada_update_initial_language): Update.
* ada-lang.c: Include psymtab.h.
(ada_update_initial_language): Remove 'main_pst' argument.
(ada_lookup_partial_symbol): Remove.
(struct ada_psym_data): New type.
(ada_add_psyms): New function.
(ada_add_non_local_symbols): Use map_ada_symtabs method.
(struct add_partial_datum): New type.
(ada_add_partial_symbol_completions): New function.
(ada_make_symbol_completion_list): Use map_partial_symbol_names.
(ada_exception_support_info_sniffer): Update.
* Makefile.in (SFILES): Add psymtab.c.
(COMMON_OBS): Add psymtab.o.
(HFILES_NO_SRCDIR): Add psymtab.h, psympriv.h.
2010-03-10 Pierre Muller <muller@ics.u-strasbg.fr>
* remote-fileio.c (cygwin_conv_path): Define macro for old cygwin API.

7
gdb/Makefile.in
View File

@ -674,7 +674,7 @@ SFILES = ada-exp.y ada-lang.c ada-typeprint.c ada-valprint.c ada-tasks.c \
objfiles.c osabi.c observer.c osdata.c \
p-exp.y p-lang.c p-typeprint.c p-valprint.c parse.c printcmd.c \
progspace.c \
prologue-value.c \
prologue-value.c psymtab.c \
regcache.c reggroups.c remote.c remote-fileio.c reverse.c \
scm-exp.c scm-lang.c scm-valprint.c \
sentinel-frame.c \
@ -764,7 +764,8 @@ config/rs6000/nm-rs6000.h top.h bsd-kvm.h gdb-stabs.h reggroups.h \
annotate.h sim-regno.h dictionary.h dfp.h main.h frame-unwind.h \
remote-fileio.h i386-linux-tdep.h vax-tdep.h objc-lang.h \
sentinel-frame.h bcache.h symfile.h windows-tdep.h linux-tdep.h \
gdb_usleep.h jit.h xml-syscall.h ada-operator.inc microblaze-tdep.h
gdb_usleep.h jit.h xml-syscall.h ada-operator.inc microblaze-tdep.h \
psymtab.h psympriv.h
# Header files that already have srcdir in them, or which are in objdir.
@ -801,7 +802,7 @@ COMMON_OBS = $(DEPFILES) $(CONFIG_OBS) $(YYOBJ) \
blockframe.o breakpoint.o findvar.o regcache.o \
charset.o disasm.o dummy-frame.o dfp.o \
source.o value.o eval.o valops.o valarith.o valprint.o printcmd.o \
block.o symtab.o symfile.o symmisc.o linespec.o dictionary.o \
block.o symtab.o psymtab.o symfile.o symmisc.o linespec.o dictionary.o \
infcall.o \
infcmd.o infrun.o \
expprint.o environ.o stack.o thread.o \

265
gdb/ada-lang.c
View File

@ -58,6 +58,8 @@
#include "vec.h"
#include "stack.h"
#include "psymtab.h"
/* Define whether or not the C operator '/' truncates towards zero for
differently signed operands (truncation direction is undefined in C).
Copied from valarith.c. */
@ -119,10 +121,6 @@ static int num_defns_collected (struct obstack *);
static struct ada_symbol_info *defns_collected (struct obstack *, int);
static struct partial_symbol *ada_lookup_partial_symbol (struct partial_symtab
*, const char *, int,
domain_enum, int);
static struct value *resolve_subexp (struct expression **, int *, int,
struct type *);
@ -638,13 +636,10 @@ base_type (struct type *type)
/* Language Selection */
/* If the main program is in Ada, return language_ada, otherwise return LANG
(the main program is in Ada iif the adainit symbol is found).
MAIN_PST is not used. */
(the main program is in Ada iif the adainit symbol is found). */
enum language
ada_update_initial_language (enum language lang,
struct partial_symtab *main_pst)
ada_update_initial_language (enum language lang)
{
if (lookup_minimal_symbol ("adainit", (const char *) NULL,
(struct objfile *) NULL) != NULL)
@ -4096,143 +4091,6 @@ defns_collected (struct obstack *obstackp, int finish)
return (struct ada_symbol_info *) obstack_base (obstackp);
}
/* Look, in partial_symtab PST, for symbol NAME in given namespace.
Check the global symbols if GLOBAL, the static symbols if not.
Do wild-card match if WILD. */
static struct partial_symbol *
ada_lookup_partial_symbol (struct partial_symtab *pst, const char *name,
int global, domain_enum namespace, int wild)
{
struct partial_symbol **start;
int name_len = strlen (name);
int length = (global ? pst->n_global_syms : pst->n_static_syms);
int i;
if (length == 0)
{
return (NULL);
}
start = (global ?
pst->objfile->global_psymbols.list + pst->globals_offset :
pst->objfile->static_psymbols.list + pst->statics_offset);
if (wild)
{
for (i = 0; i < length; i += 1)
{
struct partial_symbol *psym = start[i];
if (symbol_matches_domain (SYMBOL_LANGUAGE (psym),
SYMBOL_DOMAIN (psym), namespace)
&& wild_match (name, name_len, SYMBOL_LINKAGE_NAME (psym)))
return psym;
}
return NULL;
}
else
{
if (global)
{
int U;
i = 0;
U = length - 1;
while (U - i > 4)
{
int M = (U + i) >> 1;
struct partial_symbol *psym = start[M];
if (SYMBOL_LINKAGE_NAME (psym)[0] < name[0])
i = M + 1;
else if (SYMBOL_LINKAGE_NAME (psym)[0] > name[0])
U = M - 1;
else if (strcmp (SYMBOL_LINKAGE_NAME (psym), name) < 0)
i = M + 1;
else
U = M;
}
}
else
i = 0;
while (i < length)
{
struct partial_symbol *psym = start[i];
if (symbol_matches_domain (SYMBOL_LANGUAGE (psym),
SYMBOL_DOMAIN (psym), namespace))
{
int cmp = strncmp (name, SYMBOL_LINKAGE_NAME (psym), name_len);
if (cmp < 0)
{
if (global)
break;
}
else if (cmp == 0
&& is_name_suffix (SYMBOL_LINKAGE_NAME (psym)
+ name_len))
return psym;
}
i += 1;
}
if (global)
{
int U;
i = 0;
U = length - 1;
while (U - i > 4)
{
int M = (U + i) >> 1;
struct partial_symbol *psym = start[M];
if (SYMBOL_LINKAGE_NAME (psym)[0] < '_')
i = M + 1;
else if (SYMBOL_LINKAGE_NAME (psym)[0] > '_')
U = M - 1;
else if (strcmp (SYMBOL_LINKAGE_NAME (psym), "_ada_") < 0)
i = M + 1;
else
U = M;
}
}
else
i = 0;
while (i < length)
{
struct partial_symbol *psym = start[i];
if (symbol_matches_domain (SYMBOL_LANGUAGE (psym),
SYMBOL_DOMAIN (psym), namespace))
{
int cmp;
cmp = (int) '_' - (int) SYMBOL_LINKAGE_NAME (psym)[0];
if (cmp == 0)
{
cmp = strncmp ("_ada_", SYMBOL_LINKAGE_NAME (psym), 5);
if (cmp == 0)
cmp = strncmp (name, SYMBOL_LINKAGE_NAME (psym) + 5,
name_len);
}
if (cmp < 0)
{
if (global)
break;
}
else if (cmp == 0
&& is_name_suffix (SYMBOL_LINKAGE_NAME (psym)
+ name_len + 5))
return psym;
}
i += 1;
}
}
return NULL;
}
/* Return a minimal symbol matching NAME according to Ada decoding
rules. Returns NULL if there is no such minimal symbol. Names
prefixed with "standard__" are handled specially: "standard__" is
@ -4611,6 +4469,30 @@ ada_add_local_symbols (struct obstack *obstackp, const char *name,
add_symbols_from_enclosing_procs (obstackp, name, domain, wild_match);
}
/* An object of this type is used as the user_data argument when
calling the map_ada_symtabs method. */
struct ada_psym_data
{
struct obstack *obstackp;
const char *name;
domain_enum domain;
int global;
int wild_match;
};
/* Callback function for map_ada_symtabs. */
static void
ada_add_psyms (struct objfile *objfile, struct symtab *s, void *user_data)
{
struct ada_psym_data *data = user_data;
const int block_kind = data->global ? GLOBAL_BLOCK : STATIC_BLOCK;
ada_add_block_symbols (data->obstackp,
BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), block_kind),
data->name, data->domain, objfile, data->wild_match);
}
/* Add to OBSTACKP all non-local symbols whose name and domain match
NAME and DOMAIN respectively. The search is performed on GLOBAL_BLOCK
symbols if GLOBAL is non-zero, or on STATIC_BLOCK symbols otherwise. */
@ -4618,26 +4500,24 @@ ada_add_local_symbols (struct obstack *obstackp, const char *name,
static void
ada_add_non_local_symbols (struct obstack *obstackp, const char *name,
domain_enum domain, int global,
int wild_match)
int is_wild_match)
{
struct objfile *objfile;
struct partial_symtab *ps;
struct ada_psym_data data;
ALL_PSYMTABS (objfile, ps)
data.obstackp = obstackp;
data.name = name;
data.domain = domain;
data.global = global;
data.wild_match = is_wild_match;
ALL_OBJFILES (objfile)
{
QUIT;
if (ps->readin
|| ada_lookup_partial_symbol (ps, name, global, domain, wild_match))
{
struct symtab *s = PSYMTAB_TO_SYMTAB (ps);
const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK;
if (s == NULL || !s->primary)
continue;
ada_add_block_symbols (obstackp,
BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), block_kind),
name, domain, objfile, wild_match);
}
if (objfile->sf)
objfile->sf->qf->map_ada_symtabs (objfile, wild_match, is_name_suffix,
ada_add_psyms, name,
global, domain,
is_wild_match, &data);
}
}
@ -5254,6 +5134,29 @@ symbol_completion_add (VEC(char_ptr) **sv,
VEC_safe_push (char_ptr, *sv, completion);
}
/* An object of this type is passed as the user_data argument to the
map_partial_symbol_names method. */
struct add_partial_datum
{
VEC(char_ptr) **completions;
char *text;
int text_len;
char *text0;
char *word;
int wild_match;
int encoded;
};
/* A callback for map_partial_symbol_names. */
static void
ada_add_partial_symbol_completions (const char *name, void *user_data)
{
struct add_partial_datum *data = user_data;
symbol_completion_add (data->completions, name,
data->text, data->text_len, data->text0, data->word,
data->wild_match, data->encoded);
}
/* Return a list of possible symbol names completing TEXT0. The list
is NULL terminated. WORD is the entire command on which completion
is made. */
@ -5268,7 +5171,6 @@ ada_make_symbol_completion_list (char *text0, char *word)
VEC(char_ptr) *completions = VEC_alloc (char_ptr, 128);
struct symbol *sym;
struct symtab *s;
struct partial_symtab *ps;
struct minimal_symbol *msymbol;
struct objfile *objfile;
struct block *b, *surrounding_static_block = 0;
@ -5300,34 +5202,17 @@ ada_make_symbol_completion_list (char *text0, char *word)
}
/* First, look at the partial symtab symbols. */
ALL_PSYMTABS (objfile, ps)
{
struct partial_symbol **psym;
struct add_partial_datum data;
/* If the psymtab's been read in we'll get it when we search
through the blockvector. */
if (ps->readin)
continue;
for (psym = objfile->global_psymbols.list + ps->globals_offset;
psym < (objfile->global_psymbols.list + ps->globals_offset
+ ps->n_global_syms); psym++)
{
QUIT;
symbol_completion_add (&completions, SYMBOL_LINKAGE_NAME (*psym),
text, text_len, text0, word,
wild_match, encoded);
}
for (psym = objfile->static_psymbols.list + ps->statics_offset;
psym < (objfile->static_psymbols.list + ps->statics_offset
+ ps->n_static_syms); psym++)
{
QUIT;
symbol_completion_add (&completions, SYMBOL_LINKAGE_NAME (*psym),
text, text_len, text0, word,
wild_match, encoded);
}
data.completions = &completions;
data.text = text;
data.text_len = text_len;
data.text0 = text0;
data.word = word;
data.wild_match = wild_match;
data.encoded = encoded;
map_partial_symbol_names (ada_add_partial_symbol_completions, &data);
}
/* At this point scan through the misc symbol vectors and add each
@ -10120,7 +10005,7 @@ ada_exception_support_info_sniffer (void)
started yet. Inform the user of these two possible causes if
applicable. */
if (ada_update_initial_language (language_unknown, NULL) != language_ada)
if (ada_update_initial_language (language_unknown) != language_ada)
error (_("Unable to insert catchpoint. Is this an Ada main program?"));
/* If the symbol does not exist, then check that the program is

4
gdb/ada-lang.h
View File

@ -21,7 +21,6 @@
#if !defined (ADA_LANG_H)
#define ADA_LANG_H 1
struct partial_symbol;
struct frame_info;
#include "value.h"
@ -207,8 +206,7 @@ extern char *ada_decode_symbol (const struct general_symbol_info*);
extern const char *ada_decode (const char*);
extern enum language ada_update_initial_language (enum language,
struct partial_symtab*);
extern enum language ada_update_initial_language (enum language);
extern void clear_ada_sym_cache (void);

74
gdb/blockframe.c
View File

@ -37,6 +37,7 @@
#include "gdbcmd.h"
#include "block.h"
#include "inline-frame.h"
#include "psymtab.h"
/* Return the innermost lexical block in execution
in a specified stack frame. The frame address is assumed valid.
@ -188,10 +189,10 @@ find_pc_partial_function (CORE_ADDR pc, char **name, CORE_ADDR *address,
CORE_ADDR *endaddr)
{
struct obj_section *section;
struct partial_symtab *pst;
struct symbol *f;
struct minimal_symbol *msymbol;
struct partial_symbol *psb;
struct symtab *symtab = NULL;
struct objfile *objfile;
int i;
CORE_ADDR mapped_pc;
@ -212,55 +213,30 @@ find_pc_partial_function (CORE_ADDR pc, char **name, CORE_ADDR *address,
goto return_cached_value;
msymbol = lookup_minimal_symbol_by_pc_section (mapped_pc, section);
pst = find_pc_sect_psymtab (mapped_pc, section);
if (pst)
ALL_OBJFILES (objfile)
{
if (objfile->sf)
symtab = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol,
mapped_pc, section, 0);
if (symtab)
break;
}
if (symtab)
{
/* Need to read the symbols to get a good value for the end address. */
if (endaddr != NULL && !pst->readin)
/* Checking whether the msymbol has a larger value is for the
"pathological" case mentioned in print_frame_info. */
f = find_pc_sect_function (mapped_pc, section);
if (f != NULL
&& (msymbol == NULL
|| (BLOCK_START (SYMBOL_BLOCK_VALUE (f))
>= SYMBOL_VALUE_ADDRESS (msymbol))))
{
/* Need to get the terminal in case symbol-reading produces
output. */
target_terminal_ours_for_output ();
PSYMTAB_TO_SYMTAB (pst);
}
if (pst->readin)
{
/* Checking whether the msymbol has a larger value is for the
"pathological" case mentioned in print_frame_info. */
f = find_pc_sect_function (mapped_pc, section);
if (f != NULL
&& (msymbol == NULL
|| (BLOCK_START (SYMBOL_BLOCK_VALUE (f))
>= SYMBOL_VALUE_ADDRESS (msymbol))))
{
cache_pc_function_low = BLOCK_START (SYMBOL_BLOCK_VALUE (f));
cache_pc_function_high = BLOCK_END (SYMBOL_BLOCK_VALUE (f));
cache_pc_function_name = SYMBOL_LINKAGE_NAME (f);
cache_pc_function_section = section;
goto return_cached_value;
}
}
else
{
/* Now that static symbols go in the minimal symbol table, perhaps
we could just ignore the partial symbols. But at least for now
we use the partial or minimal symbol, whichever is larger. */
psb = find_pc_sect_psymbol (pst, mapped_pc, section);
if (psb
&& (msymbol == NULL
|| (SYMBOL_VALUE_ADDRESS (psb)
>= SYMBOL_VALUE_ADDRESS (msymbol))))
{
/* This case isn't being cached currently. */
if (address)
*address = SYMBOL_VALUE_ADDRESS (psb);
if (name)
*name = SYMBOL_LINKAGE_NAME (psb);
/* endaddr non-NULL can't happen here. */
return 1;
}
cache_pc_function_low = BLOCK_START (SYMBOL_BLOCK_VALUE (f));
cache_pc_function_high = BLOCK_END (SYMBOL_BLOCK_VALUE (f));
cache_pc_function_name = SYMBOL_LINKAGE_NAME (f);
cache_pc_function_section = section;
goto return_cached_value;
}
}

3
gdb/coffread.c
View File

@ -45,6 +45,8 @@
#include "coff-pe-read.h"
#include "psymtab.h"
extern void _initialize_coffread (void);
struct coff_symfile_info
@ -2129,6 +2131,7 @@ static struct sym_fns coff_sym_fns =
a file. */
NULL, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

32
gdb/cp-support.c
View File

@ -38,6 +38,8 @@
#include "safe-ctype.h"
#include "psymtab.h"
#define d_left(dc) (dc)->u.s_binary.left
#define d_right(dc) (dc)->u.s_binary.right
@ -62,8 +64,6 @@ static void make_symbol_overload_list_using (const char *func_name,
static void make_symbol_overload_list_qualified (const char *func_name);
static void read_in_psymtabs (const char *oload_name);
/* The list of "maint cplus" commands. */
struct cmd_list_element *maint_cplus_cmd_list = NULL;
@ -772,7 +772,11 @@ make_symbol_overload_list_qualified (const char *func_name)
/* Look through the partial symtabs for all symbols which begin
by matching FUNC_NAME. Make sure we read that symbol table in. */
read_in_psymtabs (func_name);
ALL_OBJFILES (objfile)
{
if (objfile->sf)
objfile->sf->qf->expand_symtabs_for_function (objfile, func_name);
}
/* Search upwards from currently selected frame (so that we can
complete on local vars. */
@ -826,28 +830,6 @@ make_symbol_overload_list_qualified (const char *func_name)
}
}
/* Look through the partial symtabs for all symbols which begin
by matching FUNC_NAME. Make sure we read that symbol table in. */
static void
read_in_psymtabs (const char *func_name)
{
struct partial_symtab *ps;
struct objfile *objfile;
ALL_PSYMTABS (objfile, ps)
{
if (ps->readin)
continue;
if ((lookup_partial_symbol (ps, func_name, 1, VAR_DOMAIN)
!= NULL)
|| (lookup_partial_symbol (ps, func_name, 0, VAR_DOMAIN)
!= NULL))
psymtab_to_symtab (ps);
}
}
/* Lookup the rtti type for a class name. */
struct type *

4
gdb/dbxread.c
View File

@ -1,6 +1,6 @@
/* Read dbx symbol tables and convert to internal format, for GDB.
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2008, 2009.
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2008, 2009, 2010.
Free Software Foundation, Inc.
This file is part of GDB.
@ -55,6 +55,7 @@
#include "complaints.h"
#include "cp-abi.h"
#include "cp-support.h"
#include "psympriv.h"
#include "gdb_assert.h"
#include "gdb_string.h"
@ -3572,6 +3573,7 @@ static struct sym_fns aout_sym_fns =
a file. */
NULL, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

4
gdb/doc/ChangeLog
View File

@ -1,3 +1,7 @@
2010-03-10 Tom Tromey <tromey@redhat.com>
* gdbint.texinfo (Symbol Handling): Update.
2010-03-08 Tom Tromey <tromey@redhat.com>
PR cli/9591:

6
gdb/doc/gdbint.texinfo
View File

@ -2294,6 +2294,12 @@ and all the psymbols themselves are allocated in a pair of large arrays
on an obstack, so there is little to be gained by trying to free them
unless you want to do a lot more work.
Whether or not psymtabs are created depends on the objfile's symbol
reader. The core of @value{GDBN} hides the details of partial symbols
and partial symbol tables behind a set of function pointers known as
the @dfn{quick symbol functions}. These are documented in
@file{symfile.h}.
@section Types
@unnumberedsubsec Fundamental Types (e.g., @code{FT_VOID}, @code{FT_BOOLEAN}).

1
gdb/dwarf2read.c
View File

@ -50,6 +50,7 @@
#include "addrmap.h"
#include "typeprint.h"
#include "jv-lang.h"
#include "psympriv.h"
#include <fcntl.h>
#include "gdb_string.h"

2
gdb/elfread.c
View File

@ -36,6 +36,7 @@
#include "gdb-stabs.h"
#include "complaints.h"
#include "demangle.h"
#include "psympriv.h"
extern void _initialize_elfread (void);
@ -1058,6 +1059,7 @@ static struct sym_fns elf_sym_fns =
a file. */
NULL, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

2
gdb/m2-exp.y
View File

@ -1022,7 +1022,7 @@ yylex ()
char *tmp = copy_name (yylval.sval);
struct symbol *sym;
if (lookup_partial_symtab (tmp))
if (lookup_symtab (tmp))
return BLOCKNAME;
sym = lookup_symbol (tmp, expression_context_block, VAR_DOMAIN, 0);
if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)

3
gdb/machoread.c
View File

@ -32,6 +32,7 @@
#include "gdb_assert.h"
#include "aout/stab_gnu.h"
#include "vec.h"
#include "psympriv.h"
#include <string.h>
@ -848,7 +849,7 @@ static struct sym_fns macho_sym_fns = {
a file. */
NULL, /* sym_read_linetable */
macho_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

1
gdb/mdebugread.c
View File

@ -57,6 +57,7 @@
#include "mdebugread.h"
#include "gdb_stat.h"
#include "gdb_string.h"
#include "psympriv.h"
#include "bfd.h"

35
gdb/mi/mi-cmd-file.c
View File

@ -25,6 +25,7 @@
#include "symtab.h"
#include "source.h"
#include "objfiles.h"
#include "psymtab.h"
/* Return to the client the absolute path and line number of the
current file being executed. */
@ -63,6 +64,21 @@ mi_cmd_file_list_exec_source_file (char *command, char **argv, int argc)
ui_out_field_int (uiout, "macro-info", st.symtab->macro_table ? 1 : 0);
}
/* A callback for map_partial_symbol_filenames. */
static void
print_partial_file_name (const char *filename, const char *fullname,
void *ignore)
{
ui_out_begin (uiout, ui_out_type_tuple, NULL);
ui_out_field_string (uiout, "file", filename);
if (fullname)
ui_out_field_string (uiout, "fullname", fullname);
ui_out_end (uiout, ui_out_type_tuple);
}
void
mi_cmd_file_list_exec_source_files (char *command, char **argv, int argc)
{
@ -92,24 +108,7 @@ mi_cmd_file_list_exec_source_files (char *command, char **argv, int argc)
ui_out_end (uiout, ui_out_type_tuple);
}
/* Look at all of the psymtabs */
ALL_PSYMTABS (objfile, ps)
{
if (!ps->readin)
{
ui_out_begin (uiout, ui_out_type_tuple, NULL);
ui_out_field_string (uiout, "file", ps->filename);
/* Extract the fullname if it is not known yet */
psymtab_to_fullname (ps);
if (ps->fullname)
ui_out_field_string (uiout, "fullname", ps->fullname);
ui_out_end (uiout, ui_out_type_tuple);
}
}
map_partial_symbol_filenames (print_partial_file_name, NULL);
ui_out_end (uiout, ui_out_type_list);
}

3
gdb/mipsread.c
View File

@ -42,6 +42,8 @@
#include "elf/internal.h"
#include "elf/mips.h"
#include "psymtab.h"
static void
read_alphacoff_dynamic_symtab (struct section_offsets *,
struct objfile *objfile);
@ -400,6 +402,7 @@ static struct sym_fns ecoff_sym_fns =
a file. */
NULL, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

37
gdb/objfiles.c
View File

@ -52,6 +52,7 @@
#include "exec.h"
#include "observer.h"
#include "complaints.h"
#include "psymtab.h"
/* Prototypes for local functions */
@ -782,38 +783,8 @@ objfile_relocate1 (struct objfile *objfile, struct section_offsets *new_offsets)
addrmap_relocate (objfile->psymtabs_addrmap,
ANOFFSET (delta, SECT_OFF_TEXT (objfile)));
{
struct partial_symtab *p;
ALL_OBJFILE_PSYMTABS (objfile, p)
{
p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
}
}
{
struct partial_symbol **psym;
for (psym = objfile->global_psymbols.list;
psym < objfile->global_psymbols.next;
psym++)
{
fixup_psymbol_section (*psym, objfile);
if (SYMBOL_SECTION (*psym) >= 0)
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
SYMBOL_SECTION (*psym));
}
for (psym = objfile->static_psymbols.list;
psym < objfile->static_psymbols.next;
psym++)
{
fixup_psymbol_section (*psym, objfile);
if (SYMBOL_SECTION (*psym) >= 0)
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
SYMBOL_SECTION (*psym));
}
}
if (objfile->sf)
objfile->sf->qf->relocate (objfile, new_offsets, delta);
{
struct minimal_symbol *msym;
@ -917,7 +888,7 @@ objfile_relocate (struct objfile *objfile, struct section_offsets *new_offsets)
int
objfile_has_partial_symbols (struct objfile *objfile)
{
return objfile->psymtabs != NULL;
return objfile->sf ? objfile->sf->qf->has_symbols (objfile) : 0;
}
/* Return non-zero if OBJFILE has full symbols. */

16
gdb/objfiles.h
View File

@ -564,11 +564,6 @@ extern void gdb_bfd_unref (struct bfd *abfd);
#define ALL_OBJFILE_SYMTABS(objfile, s) \
for ((s) = (objfile) -> symtabs; (s) != NULL; (s) = (s) -> next)
/* Traverse all psymtabs in one objfile. */
#define ALL_OBJFILE_PSYMTABS(objfile, p) \
for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next)
/* Traverse all minimal symbols in one objfile. */
#define ALL_OBJFILE_MSYMBOLS(objfile, m) \
@ -599,17 +594,6 @@ extern void gdb_bfd_unref (struct bfd *abfd);
ALL_OBJFILE_SYMTABS (objfile, s) \
if ((s)->primary)
/* Traverse all psymtabs in all objfiles in the current symbol
space. */
#define ALL_PSYMTABS(objfile, p) \
ALL_OBJFILES (objfile) \
ALL_OBJFILE_PSYMTABS (objfile, p)
#define ALL_PSPACE_PSYMTABS(ss, objfile, p) \
ALL_PSPACE_OBJFILES (ss, objfile) \
ALL_OBJFILE_PSYMTABS (objfile, p)
/* Traverse all minimal symbols in all objfiles in the current symbol
space. */

166
gdb/psympriv.h Normal file
View File

@ -0,0 +1,166 @@
/* Private partial symbol table definitions.
Copyright (C) 2009 Free Software Foundation, 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.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef PSYMPRIV_H
#define PSYMPRIV_H
#include "psymtab.h"
/* A partial_symbol records the name, domain, and address class of
symbols whose types we have not parsed yet. For functions, it also
contains their memory address, so we can find them from a PC value.
Each partial_symbol sits in a partial_symtab, all of which are chained
on a partial symtab list and which points to the corresponding
normal symtab once the partial_symtab has been referenced. */
/* This structure is space critical. See space comments at the top of
symtab.h. */
struct partial_symbol
{
/* The general symbol info required for all types of symbols. */
struct general_symbol_info ginfo;
/* Name space code. */
ENUM_BITFIELD(domain_enum_tag) domain : 6;
/* Address class (for info_symbols) */
ENUM_BITFIELD(address_class) aclass : 6;
};
#define PSYMBOL_DOMAIN(psymbol) (psymbol)->domain
#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
/* Each source file that has not been fully read in is represented by
a partial_symtab. This contains the information on where in the
executable the debugging symbols for a specific file are, and a
list of names of global symbols which are located in this file.
They are all chained on partial symtab lists.
Even after the source file has been read into a symtab, the
partial_symtab remains around. They are allocated on an obstack,
objfile_obstack. */
struct partial_symtab
{
/* Chain of all existing partial symtabs. */
struct partial_symtab *next;
/* Name of the source file which this partial_symtab defines */
char *filename;
/* Full path of the source file. NULL if not known. */
char *fullname;
/* Directory in which it was compiled, or NULL if we don't know. */
char *dirname;
/* Information about the object file from which symbols should be read. */
struct objfile *objfile;
/* Set of relocation offsets to apply to each section. */
struct section_offsets *section_offsets;
/* Range of text addresses covered by this file; texthigh is the
beginning of the next section. */
CORE_ADDR textlow;
CORE_ADDR texthigh;
/* Array of pointers to all of the partial_symtab's which this one
depends on. Since this array can only be set to previous or
the current (?) psymtab, this dependency tree is guaranteed not
to have any loops. "depends on" means that symbols must be read
for the dependencies before being read for this psymtab; this is
for type references in stabs, where if foo.c includes foo.h, declarations
in foo.h may use type numbers defined in foo.c. For other debugging
formats there may be no need to use dependencies. */
struct partial_symtab **dependencies;
int number_of_dependencies;
/* Global symbol list. This list will be sorted after readin to
improve access. Binary search will be the usual method of
finding a symbol within it. globals_offset is an integer offset
within global_psymbols[]. */
int globals_offset;
int n_global_syms;
/* Static symbol list. This list will *not* be sorted after readin;
to find a symbol in it, exhaustive search must be used. This is
reasonable because searches through this list will eventually
lead to either the read in of a files symbols for real (assumed
to take a *lot* of time; check) or an error (and we don't care
how long errors take). This is an offset and size within
static_psymbols[]. */
int statics_offset;
int n_static_syms;
/* Pointer to symtab eventually allocated for this source file, 0 if
!readin or if we haven't looked for the symtab after it was readin. */
struct symtab *symtab;
/* Pointer to function which will read in the symtab corresponding to
this psymtab. */
void (*read_symtab) (struct partial_symtab *);
/* Information that lets read_symtab() locate the part of the symbol table
that this psymtab corresponds to. This information is private to the
format-dependent symbol reading routines. For further detail examine
the various symbol reading modules. Should really be (void *) but is
(char *) as with other such gdb variables. (FIXME) */
char *read_symtab_private;
/* Non-zero if the symtab corresponding to this psymtab has been readin */
unsigned char readin;
};
extern void sort_pst_symbols (struct partial_symtab *);
/* Traverse all psymtabs in one objfile. */
#define ALL_OBJFILE_PSYMTABS(objfile, p) \
for ((p) = (objfile) -> psymtabs; (p) != NULL; (p) = (p) -> next)
/* Traverse all psymtabs in all objfiles. */
#define ALL_PSYMTABS(objfile, p) \
ALL_OBJFILES (objfile) \
ALL_OBJFILE_PSYMTABS (objfile, p)
#endif /* PSYMPRIV_H */

1751
gdb/psymtab.c Normal file
View File

File diff suppressed because it is too large Load Diff

31
gdb/psymtab.h Normal file
View File

@ -0,0 +1,31 @@
/* Public partial symbol table definitions.
Copyright (C) 2009 Free Software Foundation, 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.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef PSYMTAB_H
#define PSYMTAB_H
void map_partial_symbol_names (void (*) (const char *, void *), void *);
void map_partial_symbol_filenames (void (*) (const char *, const char *,
void *),
void *);
extern const struct quick_symbol_functions psym_functions;
#endif /* PSYMTAB_H */

2
gdb/somread.c
View File

@ -32,6 +32,7 @@
#include "demangle.h"
#include "som.h"
#include "libhppa.h"
#include "psymtab.h"
#include "solib-som.h"
@ -438,6 +439,7 @@ static struct sym_fns som_sym_fns =
a file. */
NULL, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};

77
gdb/source.c
View File

@ -46,6 +46,8 @@
#include "ui-out.h"
#include "readline/readline.h"
#include "psymtab.h"
#define OPEN_MODE (O_RDONLY | O_BINARY)
#define FDOPEN_MODE FOPEN_RB
@ -229,8 +231,6 @@ select_source_symtab (struct symtab *s)
{
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct partial_symtab *ps;
struct partial_symtab *cs_pst = 0;
struct objfile *ofp;
if (s)
@ -281,33 +281,13 @@ select_source_symtab (struct symtab *s)
if (current_source_symtab)
return;
/* How about the partial symbol tables? */
ALL_OBJFILES (ofp)
{
for (ps = ofp->psymtabs; ps != NULL; ps = ps->next)
{
const char *name = ps->filename;
int len = strlen (name);
if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0
|| strcmp (name, "<<C++-namespaces>>") == 0)))
cs_pst = ps;
}
}
if (cs_pst)
{
if (cs_pst->readin)
{
internal_error (__FILE__, __LINE__,
_("select_source_symtab: "
"readin pst found and no symtabs."));
}
else
{
current_source_pspace = current_program_space;
current_source_symtab = PSYMTAB_TO_SYMTAB (cs_pst);
}
}
{
if (ofp->sf)
s = ofp->sf->qf->find_last_source_symtab (ofp);
if (s)
current_source_symtab = s;
}
if (current_source_symtab)
return;
@ -332,7 +312,6 @@ forget_cached_source_info (void)
struct program_space *pspace;
struct symtab *s;
struct objfile *objfile;
struct partial_symtab *pst;
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
@ -351,14 +330,8 @@ forget_cached_source_info (void)
}
}
ALL_OBJFILE_PSYMTABS (objfile, pst)
{
if (pst->fullname != NULL)
{
xfree (pst->fullname);
pst->fullname = NULL;
}
}
if (objfile->sf)
objfile->sf->qf->forget_cached_source_info (objfile);
}
last_source_visited = NULL;
@ -964,7 +937,7 @@ rewrite_source_path (const char *path)
An invalid file descriptor is returned. ( the return value is negative )
FULLNAME is set to NULL. */
static int
int
find_and_open_source (const char *filename,
const char *dirname,
char **fullname)
@ -1094,34 +1067,6 @@ symtab_to_fullname (struct symtab *s)
return NULL;
}
/* Finds the fullname that a partial_symtab represents.
If this functions finds the fullname, it will save it in ps->fullname
and it will also return the value.
If this function fails to find the file that this partial_symtab represents,
NULL will be returned and ps->fullname will be set to NULL. */
char *
psymtab_to_fullname (struct partial_symtab *ps)
{
int r;
if (!ps)
return NULL;
/* Don't check ps->fullname here, the file could have been
deleted/moved/..., look for it again */
r = find_and_open_source (ps->filename, ps->dirname, &ps->fullname);
if (r >= 0)
{
close (r);
return ps->fullname;
}
return NULL;
}
/* Create and initialize the table S->line_charpos that records
the positions of the lines in the source file, which is assumed

1
gdb/source.h
View File

@ -25,7 +25,6 @@ struct symtab;
negative number for error. */
extern int open_source_file (struct symtab *s);
extern char* psymtab_to_fullname (struct partial_symtab *ps);
extern char* symtab_to_fullname (struct symtab *s);
/* Create and initialize the table S->line_charpos that records the

9
gdb/stack.c
View File

@ -52,6 +52,9 @@
#include <ctype.h>
#include "gdb_string.h"
#include "psymtab.h"
#include "symfile.h"
void (*deprecated_selected_frame_level_changed_hook) (int);
/* The possible choices of "set print frame-arguments, and the value
@ -1321,10 +1324,10 @@ backtrace_command_1 (char *count_exp, int show_locals, int from_tty)
i = count;
for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi))
{
CORE_ADDR pc;
QUIT;
ps = find_pc_psymtab (get_frame_address_in_block (fi));
if (ps)
PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */
pc = get_frame_address_in_block (fi);
find_pc_sect_symtab_via_partial (pc, find_pc_mapped_section (pc));
}
}

317
gdb/symfile.c
View File

@ -65,6 +65,7 @@
#include <time.h>
#include <sys/time.h>
#include "psymtab.h"
int (*deprecated_ui_load_progress_hook) (const char *section, unsigned long num);
void (*deprecated_show_load_progress) (const char *section,
@ -188,29 +189,6 @@ int auto_solib_add = 1;
int auto_solib_limit;
/* This compares two partial symbols by names, using strcmp_iw_ordered
for the comparison. */
static int
compare_psymbols (const void *s1p, const void *s2p)
{
struct partial_symbol *const *s1 = s1p;
struct partial_symbol *const *s2 = s2p;
return strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*s1),
SYMBOL_SEARCH_NAME (*s2));
}
void
sort_pst_symbols (struct partial_symtab *pst)
{
/* Sort the global list; don't sort the static list */
qsort (pst->objfile->global_psymbols.list + pst->globals_offset,
pst->n_global_syms, sizeof (struct partial_symbol *),
compare_psymbols);
}
/* Make a null terminated copy of the string at PTR with SIZE characters in
the obstack pointed to by OBSTACKP . Returns the address of the copy.
Note that the string at PTR does not have to be null terminated, I.E. it
@ -249,7 +227,7 @@ obconcat (struct obstack *obstackp, const char *s1, const char *s2,
return val;
}
/* True if we are nested inside psymtab_to_symtab. */
/* True if we are reading a symbol table. */
int currently_reading_symtab = 0;
@ -259,28 +237,13 @@ decrement_reading_symtab (void *dummy)
currently_reading_symtab--;
}
/* Get the symbol table that corresponds to a partial_symtab.
This is fast after the first time you do it. In fact, there
is an even faster macro PSYMTAB_TO_SYMTAB that does the fast
case inline. */
struct symtab *
psymtab_to_symtab (struct partial_symtab *pst)
/* Increment currently_reading_symtab and return a cleanup that can be
used to decrement it. */
struct cleanup *
increment_reading_symtab (void)
{
/* If it's been looked up before, return it. */
if (pst->symtab)
return pst->symtab;
/* If it has not yet been read in, read it. */
if (!pst->readin)
{
struct cleanup *back_to = make_cleanup (decrement_reading_symtab, NULL);
currently_reading_symtab++;
(*pst->read_symtab) (pst);
do_cleanups (back_to);
}
return pst->symtab;
++currently_reading_symtab;
return make_cleanup (decrement_reading_symtab, NULL);
}
/* Remember the lowest-addressed loadable section we've seen.
@ -968,7 +931,6 @@ symbol_file_add_with_addrs_or_offsets (bfd *abfd,
int flags)
{
struct objfile *objfile;
struct partial_symtab *psymtab;
struct cleanup *my_cleanups;
const char *name = bfd_get_filename (abfd);
const int from_tty = add_flags & SYMFILE_VERBOSE;
@ -1018,12 +980,8 @@ symbol_file_add_with_addrs_or_offsets (bfd *abfd,
gdb_flush (gdb_stdout);
}
for (psymtab = objfile->psymtabs;
psymtab != NULL;
psymtab = psymtab->next)
{
psymtab_to_symtab (psymtab);
}
if (objfile->sf)
objfile->sf->qf->expand_all_symtabs (objfile);
}
if ((from_tty || info_verbose)
@ -1457,24 +1415,21 @@ symbol_file_command (char *args, int from_tty)
void
set_initial_language (void)
{
struct partial_symtab *pst;
char *filename;
enum language lang = language_unknown;
pst = find_main_psymtab ();
if (pst != NULL)
filename = find_main_filename ();
if (filename != NULL)
lang = deduce_language_from_filename (filename);
if (lang == language_unknown)
{
if (pst->filename != NULL)
lang = deduce_language_from_filename (pst->filename);
if (lang == language_unknown)
{
/* Make C the default language */
lang = language_c;
}
set_language (lang);
expected_language = current_language; /* Don't warn the user. */
/* Make C the default language */
lang = language_c;
}
set_language (lang);
expected_language = current_language; /* Don't warn the user. */
}
/* If NAME is a remote name open the file using remote protocol, otherwise
@ -2611,73 +2566,6 @@ allocate_symtab (char *filename, struct objfile *objfile)
return (symtab);
}
struct partial_symtab *
allocate_psymtab (const char *filename, struct objfile *objfile)
{
struct partial_symtab *psymtab;
if (objfile->free_psymtabs)
{
psymtab = objfile->free_psymtabs;
objfile->free_psymtabs = psymtab->next;
}
else
psymtab = (struct partial_symtab *)
obstack_alloc (&objfile->objfile_obstack,
sizeof (struct partial_symtab));
memset (psymtab, 0, sizeof (struct partial_symtab));
psymtab->filename = (char *) bcache (filename, strlen (filename) + 1,
objfile->filename_cache);
psymtab->symtab = NULL;
/* Prepend it to the psymtab list for the objfile it belongs to.
Psymtabs are searched in most recent inserted -> least recent
inserted order. */
psymtab->objfile = objfile;
psymtab->next = objfile->psymtabs;
objfile->psymtabs = psymtab;
#if 0
{
struct partial_symtab **prev_pst;
psymtab->objfile = objfile;
psymtab->next = NULL;
prev_pst = &(objfile->psymtabs);
while ((*prev_pst) != NULL)
prev_pst = &((*prev_pst)->next);
(*prev_pst) = psymtab;
}
#endif
return (psymtab);
}
void
discard_psymtab (struct partial_symtab *pst)
{
struct partial_symtab **prev_pst;
/* From dbxread.c:
Empty psymtabs happen as a result of header files which don't
have any symbols in them. There can be a lot of them. But this
check is wrong, in that a psymtab with N_SLINE entries but
nothing else is not empty, but we don't realize that. Fixing
that without slowing things down might be tricky. */
/* First, snip it out of the psymtab chain */
prev_pst = &(pst->objfile->psymtabs);
while ((*prev_pst) != pst)
prev_pst = &((*prev_pst)->next);
(*prev_pst) = pst->next;
/* Next, put it on a free list for recycling */
pst->next = pst->objfile->free_psymtabs;
pst->objfile->free_psymtabs = pst;
}
/* Reset all data structures in gdb which may contain references to symbol
@ -2716,169 +2604,6 @@ clear_symtab_users_cleanup (void *ignore)
clear_symtab_users ();
}
/* Allocate and partially fill a partial symtab. It will be
completely filled at the end of the symbol list.
FILENAME is the name of the symbol-file we are reading from. */
struct partial_symtab *
start_psymtab_common (struct objfile *objfile,
struct section_offsets *section_offsets,
const char *filename,
CORE_ADDR textlow, struct partial_symbol **global_syms,
struct partial_symbol **static_syms)
{
struct partial_symtab *psymtab;
psymtab = allocate_psymtab (filename, objfile);
psymtab->section_offsets = section_offsets;
psymtab->textlow = textlow;
psymtab->texthigh = psymtab->textlow; /* default */
psymtab->globals_offset = global_syms - objfile->global_psymbols.list;
psymtab->statics_offset = static_syms - objfile->static_psymbols.list;
return (psymtab);
}
/* Helper function, initialises partial symbol structure and stashes
it into objfile's bcache. Note that our caching mechanism will
use all fields of struct partial_symbol to determine hash value of the
structure. In other words, having two symbols with the same name but
different domain (or address) is possible and correct. */
static const struct partial_symbol *
add_psymbol_to_bcache (char *name, int namelength, int copy_name,
domain_enum domain,
enum address_class class,
long val, /* Value as a long */
CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
enum language language, struct objfile *objfile,
int *added)
{
/* psymbol is static so that there will be no uninitialized gaps in the
structure which might contain random data, causing cache misses in
bcache. */
static struct partial_symbol psymbol;
/* However, we must ensure that the entire 'value' field has been
zeroed before assigning to it, because an assignment may not
write the entire field. */
memset (&psymbol.ginfo.value, 0, sizeof (psymbol.ginfo.value));
/* val and coreaddr are mutually exclusive, one of them *will* be zero */
if (val != 0)
{
SYMBOL_VALUE (&psymbol) = val;
}
else
{
SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr;
}
SYMBOL_SECTION (&psymbol) = 0;
SYMBOL_LANGUAGE (&psymbol) = language;
PSYMBOL_DOMAIN (&psymbol) = domain;
PSYMBOL_CLASS (&psymbol) = class;
SYMBOL_SET_NAMES (&psymbol, name, namelength, copy_name, objfile);
/* Stash the partial symbol away in the cache */
return bcache_full (&psymbol, sizeof (struct partial_symbol),
objfile->psymbol_cache, added);
}
/* Helper function, adds partial symbol to the given partial symbol
list. */
static void
append_psymbol_to_list (struct psymbol_allocation_list *list,
const struct partial_symbol *psym,
struct objfile *objfile)
{
if (list->next >= list->list + list->size)
extend_psymbol_list (list, objfile);
*list->next++ = (struct partial_symbol *) psym;
OBJSTAT (objfile, n_psyms++);
}
/* Add a symbol with a long value to a psymtab.
Since one arg is a struct, we pass in a ptr and deref it (sigh).
Return the partial symbol that has been added. */
/* NOTE: carlton/2003-09-11: The reason why we return the partial
symbol is so that callers can get access to the symbol's demangled
name, which they don't have any cheap way to determine otherwise.
(Currenly, dwarf2read.c is the only file who uses that information,
though it's possible that other readers might in the future.)
Elena wasn't thrilled about that, and I don't blame her, but we
couldn't come up with a better way to get that information. If
it's needed in other situations, we could consider breaking up
SYMBOL_SET_NAMES to provide access to the demangled name lookup
cache. */
const struct partial_symbol *
add_psymbol_to_list (char *name, int namelength, int copy_name,
domain_enum domain,
enum address_class class,
struct psymbol_allocation_list *list,
long val, /* Value as a long */
CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
enum language language, struct objfile *objfile)
{
const struct partial_symbol *psym;
int added;
/* Stash the partial symbol away in the cache */
psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, class,
val, coreaddr, language, objfile, &added);
/* Do not duplicate global partial symbols. */
if (list == &objfile->global_psymbols
&& !added)
return psym;
/* Save pointer to partial symbol in psymtab, growing symtab if needed. */
append_psymbol_to_list (list, psym, objfile);
return psym;
}
/* Initialize storage for partial symbols. */
void
init_psymbol_list (struct objfile *objfile, int total_symbols)
{
/* Free any previously allocated psymbol lists. */
if (objfile->global_psymbols.list)
{
xfree (objfile->global_psymbols.list);
}
if (objfile->static_psymbols.list)
{
xfree (objfile->static_psymbols.list);
}
/* Current best guess is that approximately a twentieth
of the total symbols (in a debugging file) are global or static
oriented symbols */
objfile->global_psymbols.size = total_symbols / 10;
objfile->static_psymbols.size = total_symbols / 10;
if (objfile->global_psymbols.size > 0)
{
objfile->global_psymbols.next =
objfile->global_psymbols.list = (struct partial_symbol **)
xmalloc ((objfile->global_psymbols.size
* sizeof (struct partial_symbol *)));
}
if (objfile->static_psymbols.size > 0)
{
objfile->static_psymbols.next =
objfile->static_psymbols.list = (struct partial_symbol **)
xmalloc ((objfile->static_psymbols.size
* sizeof (struct partial_symbol *)));
}
}
/* OVERLAYS:
The following code implements an abstraction for debugging overlay sections.

167
gdb/symfile.h
View File

@ -111,6 +111,165 @@ struct symfile_segment_data
int *segment_info;
};
/* The "quick" symbol functions exist so that symbol readers can
avoiding an initial read of all the symbols. For example, symbol
readers might choose to use the "partial symbol table" utilities,
which is one implementation of the quick symbol functions.
The quick symbol functions are generally opaque: the underlying
representation is hidden from the caller.
In general, these functions should only look at whatever special
index the symbol reader creates -- looking through the symbol
tables themselves is handled by generic code. If a function is
defined as returning a "symbol table", this means that the function
should only return a newly-created symbol table; it should not
examine pre-existing ones.
The exact list of functions here was determined in an ad hoc way
based on gdb's history. */
struct quick_symbol_functions
{
/* Return true if this objfile has any "partial" symbols
available. */
int (*has_symbols) (struct objfile *objfile);
/* Return the symbol table for the "last" file appearing in
OBJFILE. */
struct symtab *(*find_last_source_symtab) (struct objfile *objfile);
/* Forget all cached full file names for OBJFILE. */
void (*forget_cached_source_info) (struct objfile *objfile);
/* Look up the symbol table, in OBJFILE, of a source file named
NAME. If there is no '/' in the name, a match after a '/' in the
symbol table's file name will also work. FULL_PATH is the
absolute file name, and REAL_PATH is the same, run through
gdb_realpath.
If no such symbol table can be found, returns 0.
Otherwise, sets *RESULT to the symbol table and returns 1. This
might return 1 and set *RESULT to NULL if the requested file is
an include file that does not have a symtab of its own. */
int (*lookup_symtab) (struct objfile *objfile,
const char *name,
const char *full_path,
const char *real_path,
struct symtab **result);
/* Check to see if the symbol is defined in a "partial" symbol table
of OBJFILE. KIND should be either GLOBAL_BLOCK or STATIC_BLOCK,
depending on whether we want to search global symbols or static
symbols. NAME is the name of the symbol to look for. DOMAIN
indicates what sort of symbol to search for.
Returns the newly-expanded symbol table in which the symbol is
defined, or NULL if no such symbol table exists. */
struct symtab *(*lookup_symbol) (struct objfile *objfile,
int kind, const char *name,
domain_enum domain);
/* Print statistics about any indices loaded for OBJFILE. The
statistics should be printed to gdb_stdout. This is used for
"maint print statistics". */
void (*print_stats) (struct objfile *objfile);
/* Dump any indices loaded for OBJFILE. The dump should go to
gdb_stdout. This is used for "maint print objfiles". */
void (*dump) (struct objfile *objfile);
/* This is called by objfile_relocate to relocate any indices loaded
for OBJFILE. */
void (*relocate) (struct objfile *objfile,
struct section_offsets *new_offsets,
struct section_offsets *delta);
/* Find all the symbols in OBJFILE named FUNC_NAME, and ensure that
the corresponding symbol tables are loaded. */
void (*expand_symtabs_for_function) (struct objfile *objfile,
const char *func_name);
/* Read all symbol tables associated with OBJFILE. */
void (*expand_all_symtabs) (struct objfile *objfile);
/* Read all symbol tables associated with OBJFILE which have the
file name FILENAME. */
void (*expand_symtabs_with_filename) (struct objfile *objfile,
const char *filename);
/* Return the file name of the file holding the symbol in OBJFILE
named NAME. If no such symbol exists in OBJFILE, return NULL. */
char *(*find_symbol_file) (struct objfile *objfile, const char *name);
/* This method is specific to Ada. It walks the partial symbol
tables of OBJFILE looking for a name match. WILD_MATCH and
IS_NAME_SUFFIX are predicate functions that the implementation
may call to check for a match.
This function is completely ad hoc and new implementations should
refer to the psymtab implementation to see what to do. */
void (*map_ada_symtabs) (struct objfile *objfile,
int (*wild_match) (const char *, int, const char *),
int (*is_name_suffix) (const char *),
void (*callback) (struct objfile *,
struct symtab *, void *),
const char *name, int global,
domain_enum namespace, int wild,
void *data);
/* Expand all symbol tables in OBJFILE matching some criteria.
FILE_MATCHER is called for each file in OBJFILE. The file name
and the DATA argument are passed to it. If it returns zero, this
file is skipped.
Otherwise, if the file is not skipped, then NAME_MATCHER is
called for each symbol defined in the file. The symbol's
"natural" name and DATA are passed to NAME_MATCHER.
If NAME_MATCHER returns zero, then this symbol is skipped.
Otherwise, if this symbol is not skipped, and it matches KIND,
then this symbol's symbol table is expanded.
DATA is user data that is passed unmodified to the callback
functions. */
void (*expand_symtabs_matching) (struct objfile *objfile,
int (*file_matcher) (const char *, void *),
int (*name_matcher) (const char *, void *),
domain_enum kind,
void *data);
/* Return the symbol table from OBJFILE that contains PC and
SECTION. Return NULL if there is no such symbol table. This
should return the symbol table that contains a symbol whose
address exactly matches PC, or, if there is no exact match, the
symbol table that contains a symbol whose address is closest to
PC. */
struct symtab *(*find_pc_sect_symtab) (struct objfile *objfile,
struct minimal_symbol *msymbol,
CORE_ADDR pc,
struct obj_section *section,
int warn_if_readin);
/* Call a callback for every symbol defined in OBJFILE. FUN is the
callback. It is passed the symbol's natural name, and the DATA
passed to this function. */
void (*map_symbol_names) (struct objfile *objfile,
void (*fun) (const char *, void *),
void *data);
/* Call a callback for every file defined in OBJFILE. FUN is the
callback. It is passed the file's name, the file's full name,
and the DATA passed to this function. */
void (*map_symbol_filenames) (struct objfile *objfile,
void (*fun) (const char *, const char *,
void *),
void *data);
};
/* Structure to keep track of symbol reading functions for various
object file types. */
@ -174,6 +333,10 @@ struct sym_fns
bfd_byte *(*sym_relocate) (struct objfile *, asection *sectp, bfd_byte *buf);
/* The "quick" (aka partial) symbol functions for this symbol
reader. */
const struct quick_symbol_functions *qf;
/* Finds the next struct sym_fns. They are allocated and
initialized in whatever module implements the functions pointed
to; an initializer calls add_symtab_fns to add them to the global
@ -226,8 +389,6 @@ struct partial_symbol *add_psymbol_to_list (char *, int, int, domain_enum,
extern void init_psymbol_list (struct objfile *, int);
extern void sort_pst_symbols (struct partial_symtab *);
extern struct symtab *allocate_symtab (char *, struct objfile *);
extern void add_symtab_fns (struct sym_fns *);
@ -399,6 +560,8 @@ extern int symfile_map_offsets_to_segments (bfd *,
struct symfile_segment_data *get_symfile_segment_data (bfd *abfd);
void free_symfile_segment_data (struct symfile_segment_data *data);
extern struct cleanup *increment_reading_symtab (void);
/* From dwarf2read.c */
extern int dwarf2_has_info (struct objfile *);

464
gdb/symmisc.c
View File

@ -39,6 +39,8 @@
#include "gdb_string.h"
#include "readline/readline.h"
#include "psymtab.h"
#ifndef DEV_TTY
#define DEV_TTY "/dev/tty"
#endif
@ -58,19 +60,12 @@ FILE *std_err;
static void dump_symtab (struct objfile *, struct symtab *,
struct ui_file *);
static void dump_psymtab (struct objfile *, struct partial_symtab *,
struct ui_file *);
static void dump_msymbols (struct objfile *, struct ui_file *);
static void dump_objfile (struct objfile *);
static int block_depth (struct block *);
static void print_partial_symbols (struct gdbarch *,
struct partial_symbol **, int,
char *, struct ui_file *);
void _initialize_symmisc (void);
struct print_symbol_args
@ -151,7 +146,6 @@ print_objfile_statistics (void)
struct program_space *pspace;
struct objfile *objfile;
struct symtab *s;
struct partial_symtab *ps;
int i, linetables, blockvectors;
immediate_quit++;
@ -174,13 +168,8 @@ print_objfile_statistics (void)
if (OBJSTAT (objfile, n_types) > 0)
printf_filtered (_(" Number of \"types\" defined: %d\n"),
OBJSTAT (objfile, n_types));
i = 0;
ALL_OBJFILE_PSYMTABS (objfile, ps)
{
if (ps->readin == 0)
i++;
}
printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"), i);
if (objfile->sf)
objfile->sf->qf->print_stats (objfile);
i = linetables = blockvectors = 0;
ALL_OBJFILE_SYMTABS (objfile, s)
{
@ -215,7 +204,6 @@ static void
dump_objfile (struct objfile *objfile)
{
struct symtab *symtab;
struct partial_symtab *psymtab;
printf_filtered ("\nObject file %s: ", objfile->name);
printf_filtered ("Objfile at ");
@ -225,25 +213,8 @@ dump_objfile (struct objfile *objfile)
printf_filtered (", %d minsyms\n\n",
objfile->minimal_symbol_count);
if (objfile->psymtabs)
{
printf_filtered ("Psymtabs:\n");
for (psymtab = objfile->psymtabs;
psymtab != NULL;
psymtab = psymtab->next)
{
printf_filtered ("%s at ",
psymtab->filename);
gdb_print_host_address (psymtab, gdb_stdout);
printf_filtered (", ");
if (psymtab->objfile != objfile)
{
printf_filtered ("NOT ON CHAIN! ");
}
wrap_here (" ");
}
printf_filtered ("\n\n");
}
if (objfile->sf)
objfile->sf->qf->dump (objfile);
if (objfile->symtabs)
{
@ -344,76 +315,6 @@ dump_msymbols (struct objfile *objfile, struct ui_file *outfile)
fprintf_filtered (outfile, "\n");
}
static void
dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab,
struct ui_file *outfile)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
int i;
fprintf_filtered (outfile, "\nPartial symtab for source file %s ",
psymtab->filename);
fprintf_filtered (outfile, "(object ");
gdb_print_host_address (psymtab, outfile);
fprintf_filtered (outfile, ")\n\n");
fprintf_unfiltered (outfile, " Read from object file %s (",
objfile->name);
gdb_print_host_address (objfile, outfile);
fprintf_unfiltered (outfile, ")\n");
if (psymtab->readin)
{
fprintf_filtered (outfile,
" Full symtab was read (at ");
gdb_print_host_address (psymtab->symtab, outfile);
fprintf_filtered (outfile, " by function at ");
gdb_print_host_address (psymtab->read_symtab, outfile);
fprintf_filtered (outfile, ")\n");
}
fprintf_filtered (outfile, " Relocate symbols by ");
for (i = 0; i < psymtab->objfile->num_sections; ++i)
{
if (i != 0)
fprintf_filtered (outfile, ", ");
wrap_here (" ");
fputs_filtered (paddress (gdbarch,
ANOFFSET (psymtab->section_offsets, i)),
outfile);
}
fprintf_filtered (outfile, "\n");
fprintf_filtered (outfile, " Symbols cover text addresses ");
fputs_filtered (paddress (gdbarch, psymtab->textlow), outfile);
fprintf_filtered (outfile, "-");
fputs_filtered (paddress (gdbarch, psymtab->texthigh), outfile);
fprintf_filtered (outfile, "\n");
fprintf_filtered (outfile, " Depends on %d other partial symtabs.\n",
psymtab->number_of_dependencies);
for (i = 0; i < psymtab->number_of_dependencies; i++)
{
fprintf_filtered (outfile, " %d ", i);
gdb_print_host_address (psymtab->dependencies[i], outfile);
fprintf_filtered (outfile, " %s\n",
psymtab->dependencies[i]->filename);
}
if (psymtab->n_global_syms > 0)
{
print_partial_symbols (gdbarch,
objfile->global_psymbols.list
+ psymtab->globals_offset,
psymtab->n_global_syms, "Global", outfile);
}
if (psymtab->n_static_syms > 0)
{
print_partial_symbols (gdbarch,
objfile->static_psymbols.list
+ psymtab->statics_offset,
psymtab->n_static_syms, "Static", outfile);
}
fprintf_filtered (outfile, "\n");
}
static void
dump_symtab_1 (struct objfile *objfile, struct symtab *symtab,
struct ui_file *outfile)
@ -749,142 +650,6 @@ print_symbol (void *args)
return 1;
}
void
maintenance_print_psymbols (char *args, int from_tty)
{
char **argv;
struct ui_file *outfile;
struct cleanup *cleanups;
char *symname = NULL;
char *filename = DEV_TTY;
struct objfile *objfile;
struct partial_symtab *ps;
dont_repeat ();
if (args == NULL)
{
error (_("print-psymbols takes an output file name and optional symbol file name"));
}
argv = gdb_buildargv (args);
cleanups = make_cleanup_freeargv (argv);
if (argv[0] != NULL)
{
filename = argv[0];
/* If a second arg is supplied, it is a source file name to match on */
if (argv[1] != NULL)
{
symname = argv[1];
}
}
filename = tilde_expand (filename);
make_cleanup (xfree, filename);
outfile = gdb_fopen (filename, FOPEN_WT);
if (outfile == 0)
perror_with_name (filename);
make_cleanup_ui_file_delete (outfile);
immediate_quit++;
ALL_PSYMTABS (objfile, ps)
if (symname == NULL || strcmp (symname, ps->filename) == 0)
dump_psymtab (objfile, ps, outfile);
immediate_quit--;
do_cleanups (cleanups);
}
static void
print_partial_symbols (struct gdbarch *gdbarch,
struct partial_symbol **p, int count, char *what,
struct ui_file *outfile)
{
fprintf_filtered (outfile, " %s partial symbols:\n", what);
while (count-- > 0)
{
fprintf_filtered (outfile, " `%s'", SYMBOL_LINKAGE_NAME (*p));
if (SYMBOL_DEMANGLED_NAME (*p) != NULL)
{
fprintf_filtered (outfile, " `%s'", SYMBOL_DEMANGLED_NAME (*p));
}
fputs_filtered (", ", outfile);
switch (SYMBOL_DOMAIN (*p))
{
case UNDEF_DOMAIN:
fputs_filtered ("undefined domain, ", outfile);
break;
case VAR_DOMAIN:
/* This is the usual thing -- don't print it */
break;
case STRUCT_DOMAIN:
fputs_filtered ("struct domain, ", outfile);
break;
case LABEL_DOMAIN:
fputs_filtered ("label domain, ", outfile);
break;
default:
fputs_filtered ("<invalid domain>, ", outfile);
break;
}
switch (SYMBOL_CLASS (*p))
{
case LOC_UNDEF:
fputs_filtered ("undefined", outfile);
break;
case LOC_CONST:
fputs_filtered ("constant int", outfile);
break;
case LOC_STATIC:
fputs_filtered ("static", outfile);
break;
case LOC_REGISTER:
fputs_filtered ("register", outfile);
break;
case LOC_ARG:
fputs_filtered ("pass by value", outfile);
break;
case LOC_REF_ARG:
fputs_filtered ("pass by reference", outfile);
break;
case LOC_REGPARM_ADDR:
fputs_filtered ("register address parameter", outfile);
break;
case LOC_LOCAL:
fputs_filtered ("stack parameter", outfile);
break;
case LOC_TYPEDEF:
fputs_filtered ("type", outfile);
break;
case LOC_LABEL:
fputs_filtered ("label", outfile);
break;
case LOC_BLOCK:
fputs_filtered ("function", outfile);
break;
case LOC_CONST_BYTES:
fputs_filtered ("constant bytes", outfile);
break;
case LOC_UNRESOLVED:
fputs_filtered ("unresolved", outfile);
break;
case LOC_OPTIMIZED_OUT:
fputs_filtered ("optimized out", outfile);
break;
case LOC_COMPUTED:
fputs_filtered ("computed at runtime", outfile);
break;
default:
fputs_filtered ("<invalid location>", outfile);
break;
}
fputs_filtered (", ", outfile);
fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (*p)), outfile);
fprintf_filtered (outfile, "\n");
p++;
}
}
void
maintenance_print_msymbols (char *args, int from_tty)
{
@ -1012,194 +777,6 @@ maintenance_info_symtabs (char *regexp, int from_tty)
printf_filtered ("}\n");
}
}
/* List all the partial symbol tables whose names match REGEXP (optional). */
void
maintenance_info_psymtabs (char *regexp, int from_tty)
{
struct program_space *pspace;
struct objfile *objfile;
if (regexp)
re_comp (regexp);
ALL_PSPACES (pspace)
ALL_PSPACE_OBJFILES (pspace, objfile)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct partial_symtab *psymtab;
/* We don't want to print anything for this objfile until we
actually find a symtab whose name matches. */
int printed_objfile_start = 0;
ALL_OBJFILE_PSYMTABS (objfile, psymtab)
{
QUIT;
if (! regexp
|| re_exec (psymtab->filename))
{
if (! printed_objfile_start)
{
printf_filtered ("{ objfile %s ", objfile->name);
wrap_here (" ");
printf_filtered ("((struct objfile *) %s)\n",
host_address_to_string (objfile));
printed_objfile_start = 1;
}
printf_filtered (" { psymtab %s ", psymtab->filename);
wrap_here (" ");
printf_filtered ("((struct partial_symtab *) %s)\n",
host_address_to_string (psymtab));
printf_filtered (" readin %s\n",
psymtab->readin ? "yes" : "no");
printf_filtered (" fullname %s\n",
psymtab->fullname ? psymtab->fullname : "(null)");
printf_filtered (" text addresses ");
fputs_filtered (paddress (gdbarch, psymtab->textlow),
gdb_stdout);
printf_filtered (" -- ");
fputs_filtered (paddress (gdbarch, psymtab->texthigh),
gdb_stdout);
printf_filtered ("\n");
printf_filtered (" globals ");
if (psymtab->n_global_syms)
{
printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n",
host_address_to_string (psymtab->objfile->global_psymbols.list
+ psymtab->globals_offset),
psymtab->n_global_syms);
}
else
printf_filtered ("(none)\n");
printf_filtered (" statics ");
if (psymtab->n_static_syms)
{
printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n",
host_address_to_string (psymtab->objfile->static_psymbols.list
+ psymtab->statics_offset),
psymtab->n_static_syms);
}
else
printf_filtered ("(none)\n");
printf_filtered (" dependencies ");
if (psymtab->number_of_dependencies)
{
int i;
printf_filtered ("{\n");
for (i = 0; i < psymtab->number_of_dependencies; i++)
{
struct partial_symtab *dep = psymtab->dependencies[i];
/* Note the string concatenation there --- no comma. */
printf_filtered (" psymtab %s "
"((struct partial_symtab *) %s)\n",
dep->filename,
host_address_to_string (dep));
}
printf_filtered (" }\n");
}
else
printf_filtered ("(none)\n");
printf_filtered (" }\n");
}
}
if (printed_objfile_start)
printf_filtered ("}\n");
}
}
/* Check consistency of psymtabs and symtabs. */
void
maintenance_check_symtabs (char *ignore, int from_tty)
{
struct symbol *sym;
struct partial_symbol **psym;
struct symtab *s = NULL;
struct partial_symtab *ps;
struct blockvector *bv;
struct objfile *objfile;
struct block *b;
int length;
ALL_PSYMTABS (objfile, ps)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
s = PSYMTAB_TO_SYMTAB (ps);
if (s == NULL)
continue;
bv = BLOCKVECTOR (s);
b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
psym = ps->objfile->static_psymbols.list + ps->statics_offset;
length = ps->n_static_syms;
while (length--)
{
sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym),
SYMBOL_DOMAIN (*psym));
if (!sym)
{
printf_filtered ("Static symbol `");
puts_filtered (SYMBOL_LINKAGE_NAME (*psym));
printf_filtered ("' only found in ");
puts_filtered (ps->filename);
printf_filtered (" psymtab\n");
}
psym++;
}
b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
psym = ps->objfile->global_psymbols.list + ps->globals_offset;
length = ps->n_global_syms;
while (length--)
{
sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym),
SYMBOL_DOMAIN (*psym));
if (!sym)
{
printf_filtered ("Global symbol `");
puts_filtered (SYMBOL_LINKAGE_NAME (*psym));
printf_filtered ("' only found in ");
puts_filtered (ps->filename);
printf_filtered (" psymtab\n");
}
psym++;
}
if (ps->texthigh < ps->textlow)
{
printf_filtered ("Psymtab ");
puts_filtered (ps->filename);
printf_filtered (" covers bad range ");
fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout);
printf_filtered (" - ");
fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout);
printf_filtered ("\n");
continue;
}
if (ps->texthigh == 0)
continue;
if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b))
{
printf_filtered ("Psymtab ");
puts_filtered (ps->filename);
printf_filtered (" covers ");
fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout);
printf_filtered (" - ");
fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout);
printf_filtered (" but symtab covers only ");
fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout);
printf_filtered (" - ");
fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout);
printf_filtered ("\n");
}
}
}
/* Return the nexting depth of a block within other blocks in its symtab. */
@ -1216,35 +793,6 @@ block_depth (struct block *block)
}
/* Increase the space allocated for LISTP, which is probably
global_psymbols or static_psymbols. This space will eventually
be freed in free_objfile(). */
void
extend_psymbol_list (struct psymbol_allocation_list *listp,
struct objfile *objfile)
{
int new_size;
if (listp->size == 0)
{
new_size = 255;
listp->list = (struct partial_symbol **)
xmalloc (new_size * sizeof (struct partial_symbol *));
}
else
{
new_size = listp->size * 2;
listp->list = (struct partial_symbol **)
xrealloc ((char *) listp->list,
new_size * sizeof (struct partial_symbol *));
}
/* Next assumes we only went one over. Should be good if
program works correctly */
listp->next = listp->list + listp->size;
listp->size = new_size;
}
/* Do early runtime initializations. */
void
_initialize_symmisc (void)

1043
gdb/symtab.c
View File

File diff suppressed because it is too large Load Diff

176
gdb/symtab.h
View File

@ -630,36 +630,6 @@ struct symbol
#define SYMBOL_REGISTER_OPS(symbol) (symbol)->ops.ops_register
#define SYMBOL_LOCATION_BATON(symbol) (symbol)->aux_value
/* A partial_symbol records the name, domain, and address class of
symbols whose types we have not parsed yet. For functions, it also
contains their memory address, so we can find them from a PC value.
Each partial_symbol sits in a partial_symtab, all of which are chained
on a partial symtab list and which points to the corresponding
normal symtab once the partial_symtab has been referenced. */
/* This structure is space critical. See space comments at the top. */
struct partial_symbol
{
/* The general symbol info required for all types of symbols. */
struct general_symbol_info ginfo;
/* Name space code. */
ENUM_BITFIELD(domain_enum_tag) domain : 6;
/* Address class (for info_symbols) */
ENUM_BITFIELD(address_class) aclass : 6;
};
#define PSYMBOL_DOMAIN(psymbol) (psymbol)->domain
#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
/* Each item represents a line-->pc (or the reverse) mapping. This is
somewhat more wasteful of space than one might wish, but since only
the files which are actually debugged are read in to core, we don't
@ -826,110 +796,6 @@ struct symtab
#define SYMTAB_PSPACE(symtab) (symtab)->objfile->pspace
/* Each source file that has not been fully read in is represented by
a partial_symtab. This contains the information on where in the
executable the debugging symbols for a specific file are, and a
list of names of global symbols which are located in this file.
They are all chained on partial symtab lists.
Even after the source file has been read into a symtab, the
partial_symtab remains around. They are allocated on an obstack,
objfile_obstack. FIXME, this is bad for dynamic linking or VxWorks-
style execution of a bunch of .o's. */
struct partial_symtab
{
/* Chain of all existing partial symtabs. */
struct partial_symtab *next;
/* Name of the source file which this partial_symtab defines */
char *filename;
/* Full path of the source file. NULL if not known. */
char *fullname;
/* Directory in which it was compiled, or NULL if we don't know. */
char *dirname;
/* Information about the object file from which symbols should be read. */
struct objfile *objfile;
/* Set of relocation offsets to apply to each section. */
struct section_offsets *section_offsets;
/* Range of text addresses covered by this file; texthigh is the
beginning of the next section. */
CORE_ADDR textlow;
CORE_ADDR texthigh;
/* Array of pointers to all of the partial_symtab's which this one
depends on. Since this array can only be set to previous or
the current (?) psymtab, this dependency tree is guaranteed not
to have any loops. "depends on" means that symbols must be read
for the dependencies before being read for this psymtab; this is
for type references in stabs, where if foo.c includes foo.h, declarations
in foo.h may use type numbers defined in foo.c. For other debugging
formats there may be no need to use dependencies. */
struct partial_symtab **dependencies;
int number_of_dependencies;
/* Global symbol list. This list will be sorted after readin to
improve access. Binary search will be the usual method of
finding a symbol within it. globals_offset is an integer offset
within global_psymbols[]. */
int globals_offset;
int n_global_syms;
/* Static symbol list. This list will *not* be sorted after readin;
to find a symbol in it, exhaustive search must be used. This is
reasonable because searches through this list will eventually
lead to either the read in of a files symbols for real (assumed
to take a *lot* of time; check) or an error (and we don't care
how long errors take). This is an offset and size within
static_psymbols[]. */
int statics_offset;
int n_static_syms;
/* Pointer to symtab eventually allocated for this source file, 0 if
!readin or if we haven't looked for the symtab after it was readin. */
struct symtab *symtab;
/* Pointer to function which will read in the symtab corresponding to
this psymtab. */
void (*read_symtab) (struct partial_symtab *);
/* Information that lets read_symtab() locate the part of the symbol table
that this psymtab corresponds to. This information is private to the
format-dependent symbol reading routines. For further detail examine
the various symbol reading modules. Should really be (void *) but is
(char *) as with other such gdb variables. (FIXME) */
char *read_symtab_private;
/* Non-zero if the symtab corresponding to this psymtab has been readin */
unsigned char readin;
};
/* A fast way to get from a psymtab to its symtab (after the first time). */
#define PSYMTAB_TO_SYMTAB(pst) \
((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
/* The virtual function table is now an array of structures which have the
form { int16 offset, delta; void *pfn; }.
@ -1019,12 +885,6 @@ extern struct symbol *lookup_symbol_aux_block (const char *name,
const struct block *block,
const domain_enum domain);
/* Lookup a partial symbol. */
extern struct partial_symbol *lookup_partial_symbol (struct partial_symtab *,
const char *, int,
domain_enum);
/* lookup a symbol by name, within a specified block */
extern struct symbol *lookup_block_symbol (const struct block *, const char *,
@ -1055,20 +915,10 @@ extern int find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *,
extern void clear_pc_function_cache (void);
/* from symtab.c: */
/* lookup partial symbol table by filename */
extern struct partial_symtab *lookup_partial_symtab (const char *);
/* lookup partial symbol table by address */
extern struct partial_symtab *find_pc_psymtab (CORE_ADDR);
/* lookup partial symbol table by address and section */
extern struct partial_symtab *find_pc_sect_psymtab (CORE_ADDR,
struct obj_section *);
extern struct symtab *find_pc_sect_symtab_via_partial (CORE_ADDR,
struct obj_section *);
/* lookup full symbol table by address */
@ -1078,17 +928,6 @@ extern struct symtab *find_pc_symtab (CORE_ADDR);
extern struct symtab *find_pc_sect_symtab (CORE_ADDR, struct obj_section *);
/* lookup partial symbol by address */
extern struct partial_symbol *find_pc_psymbol (struct partial_symtab *,
CORE_ADDR);
/* lookup partial symbol by address and section */
extern struct partial_symbol *find_pc_sect_psymbol (struct partial_symtab *,
CORE_ADDR,
struct obj_section *);
extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *);
extern void reread_symbols (void);
@ -1264,8 +1103,6 @@ extern void free_symtab (struct symtab *);
/* Symbol-reading stuff in symfile.c and solib.c. */
extern struct symtab *psymtab_to_symtab (struct partial_symtab *);
extern void clear_solib (void);
/* source.c */
@ -1291,7 +1128,7 @@ extern char **make_source_files_completion_list (char *, char *);
int matching_obj_sections (struct obj_section *, struct obj_section *);
extern struct partial_symtab *find_main_psymtab (void);
extern char *find_main_filename (void);
extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
@ -1318,10 +1155,6 @@ extern CORE_ADDR skip_prologue_using_sal (struct gdbarch *gdbarch,
extern struct symbol *fixup_symbol_section (struct symbol *,
struct objfile *);
extern struct partial_symbol *fixup_psymbol_section (struct partial_symbol
*psym,
struct objfile *objfile);
/* Symbol searching */
/* When using search_symbols, a list of the following structs is returned.
@ -1368,4 +1201,7 @@ struct symbol *lookup_global_symbol_from_objfile (const struct objfile *objfile,
extern struct symtabs_and_lines
expand_line_sal (struct symtab_and_line sal);
void fixup_section (struct general_symbol_info *ginfo,
CORE_ADDR addr, struct objfile *objfile);
#endif /* !defined(SYMTAB_H) */

2
gdb/xcoffread.c
View File

@ -50,6 +50,7 @@
#include "stabsread.h"
#include "expression.h"
#include "complaints.h"
#include "psympriv.h"
#include "gdb-stabs.h"
@ -3036,6 +3037,7 @@ static struct sym_fns xcoff_sym_fns =
a file. */
aix_process_linenos, /* sym_read_linetable */
default_symfile_relocate, /* sym_relocate: Relocate a debug section. */
&psym_functions,
NULL /* next: pointer to next struct sym_fns */
};