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* xcoffread.c (xcoff_sym_fns): Update.

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* symfile.h (struct sym_fns) <sym_read_psymbols>: New field.
	(enum symfile_add_flags) <SYMFILE_NO_READ>: New constant.
	* symfile.c (syms_from_objfile): Handle SYMFILE_NO_READ.
	(symbol_file_add_with_addrs_or_offsets): Likewise.
	(reread_symbols): Handle OBJF_PSYMTABS_READ.
	* somread.c (som_sym_fns): Update.
	* psymtab.h (require_partial_symbols): Declare.
	* psymtab.c (require_partial_symbols): New function.
	(ALL_OBJFILE_PSYMTABS_REQUIRED): New macro.
	(ALL_OBJFILE_PSYMTABS): Undef.
	(ALL_PSYMTABS): Move from psympriv.h.
	(lookup_partial_symtab, find_pc_sect_psymtab)
	(lookup_symbol_aux_psymtabs, relocate_psymtabs)
	(find_last_source_symtab_from_partial)
	(forget_cached_source_info_partial)
	(print_psymtab_stats_for_objfile, read_symtabs_for_function)
	(expand_partial_symbol_tables, read_psymtabs_with_filename)
	(map_symbol_names_psymtab, map_symbol_filenames_psymtab)
	(find_symbol_file_from_partial, map_matching_symbols_psymtab)
	(expand_symtabs_matching_via_partial, maintenance_info_psymtabs):
	Use ALL_OBJFILE_PSYMTABS_REQUIRED.
	* psympriv.h (ALL_PSYMTABS): Move to psymtab.c.
	* objfiles.h (OBJF_PSYMTABS_READ): New macro.
	* objfiles.c (objfile_has_partial_symbols): Handle lazily-read
	psymtabs.
	* mipsread.c (ecoff_sym_fns): Update.
	* machoread.c (macho_sym_fns): Update.
	* elfread.c (elf_symfile_read): Set up for lazy psymtab reading.
	(read_psyms): New function.
	(elf_sym_fns, elf_sym_fns_gdb_index): Update.
	(elf_sym_fns_lazy_psyms): New global.
	* dwarf2read.c (dwarf2_initialize_objfile): Don't call
	dwarf2_build_psymtabs.
	* dbxread.c (aout_sym_fns): Update.
	* coffread.c (coff_sym_fns): Update.
This commit is contained in:
Tom Tromey
2011-03-07 16:17:29 +00:00
parent fda326dd1d
commit b11896a527
16 changed files with 214 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
gdb/elfread.c
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@ -40,8 +40,9 @@
extern void _initialize_elfread (void);
/* Forward declaration. */
/* Forward declarations. */
static const struct sym_fns elf_sym_fns_gdb_index;
static const struct sym_fns elf_sym_fns_lazy_psyms;
/* The struct elfinfo is available only during ELF symbol table and
psymtab reading. It is destroyed at the completion of psymtab-reading.
@ -887,14 +888,24 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
bfd_section_size (abfd, str_sect));
}
if (dwarf2_has_info (objfile) && dwarf2_initialize_objfile (objfile))
objfile->sf = &elf_sym_fns_gdb_index;
if (dwarf2_has_info (objfile))
{
if (dwarf2_initialize_objfile (objfile))
objfile->sf = &elf_sym_fns_gdb_index;
else
{
/* It is ok to do this even if the stabs reader made some
partial symbols, because OBJF_PSYMTABS_READ has not been
set, and so our lazy reader function will still be called
when needed. */
objfile->sf = &elf_sym_fns_lazy_psyms;
}
}
/* If the file has its own symbol tables it has no separate debug
info. `.dynsym'/`.symtab' go to MSYMBOLS, `.debug_info' goes to
SYMTABS/PSYMTABS. `.gnu_debuglink' may no longer be present with
`.note.gnu.build-id'. */
if (!objfile_has_partial_symbols (objfile))
else if (!objfile_has_partial_symbols (objfile))
{
char *debugfile;
@ -913,6 +924,15 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
}
}
/* Callback to lazily read psymtabs. */
static void
read_psyms (struct objfile *objfile)
{
if (dwarf2_has_info (objfile))
dwarf2_build_psymtabs (objfile);
}
/* This cleans up the objfile's deprecated_sym_stab_info pointer, and
the chain of stab_section_info's, that might be dangling from
it. */
@ -1057,6 +1077,25 @@ static const struct sym_fns elf_sym_fns =
elf_new_init, /* init anything gbl to entire symtab */
elf_symfile_init, /* read initial info, setup for sym_read() */
elf_symfile_read, /* read a symbol file into symtab */
NULL, /* sym_read_psymbols */
elf_symfile_finish, /* finished with file, cleanup */
default_symfile_offsets, /* Translate ext. to int. relocation */
elf_symfile_segments, /* Get segment information from a file. */
NULL,
default_symfile_relocate, /* Relocate a debug section. */
&psym_functions
};
/* The same as elf_sym_fns, but not registered and lazily reads
psymbols. */
static const struct sym_fns elf_sym_fns_lazy_psyms =
{
bfd_target_elf_flavour,
elf_new_init, /* init anything gbl to entire symtab */
elf_symfile_init, /* read initial info, setup for sym_read() */
elf_symfile_read, /* read a symbol file into symtab */
read_psyms, /* sym_read_psymbols */
elf_symfile_finish, /* finished with file, cleanup */
default_symfile_offsets, /* Translate ext. to int. relocation */
elf_symfile_segments, /* Get segment information from a file. */
@ -1073,6 +1112,7 @@ static const struct sym_fns elf_sym_fns_gdb_index =
elf_new_init, /* init anything gbl to entire symab */
elf_symfile_init, /* read initial info, setup for sym_red() */
elf_symfile_read, /* read a symbol file into symtab */
NULL, /* sym_read_psymbols */
elf_symfile_finish, /* finished with file, cleanup */
default_symfile_offsets, /* Translate ext. to int. relocatin */
elf_symfile_segments, /* Get segment information from a file. */