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2005-07-25 H.J. Lu <hongjiu.lu@intel.com>

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* elf-bfd.h (elf_backend_data): Add common_definition,
	common_section_index, common_section, and merge_symbol.
	(_bfd_elf_common_definition): New.
	(_bfd_elf_common_section_index): New.
	(_bfd_elf_common_section): New.

	* elf.c (elf_fake_sections): Don't clear sh_flags.

	* elflink.c (_bfd_elf_merge_symbol): Call backend merge_symbol
	if it is available.
	(is_global_data_symbol_definition): Call backend
	common_definition instead of checking SHN_COMMON.
	(elf_link_add_object_symbols): Likewise.
	(elf_link_output_extsym): Call backend common_section_index
	for common section index.
	(_bfd_elf_common_definition): New.
	(_bfd_elf_common_section_index): New.
	(_bfd_elf_common_section): New.

	* elfxx-target.h (elf_backend_common_definition): New.
	(elf_backend_common_section_index): New.
	(elf_backend_common_section): New.
	(elf_backend_merge_symbol): New.
	(elfNN_bed): Initialize common_definition, common_section_index,
	common_section, and merge_symbol.

	* section.c (BFD_FAKE_SECTION): New.
	(STD_SECTION): Use it.
	* bfd-in2.h: Regenerated.
This commit is contained in:
H.J. Lu
2005-07-25 15:35:37 +00:00
parent 40afd87930
commit a4d8e49b50
7 changed files with 214 additions and 50 deletions
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83
bfd/section.c
View File

@ -635,6 +635,47 @@ CODE_FRAGMENT
.#define bfd_section_removed_from_list(ABFD, S) \
. ((S)->next == NULL ? (ABFD)->section_last != (S) : (S)->next->prev != (S))
.
.#define BFD_FAKE_SECTION(SEC, FLAGS, SYM, SYM_PTR, NAME, IDX) \
. {* name, id, index, next, prev, flags, user_set_vma, *} \
. { NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
. \
. {* linker_mark, linker_has_input, gc_mark, gc_mark_from_eh, *} \
. 0, 0, 1, 0, \
. \
. {* segment_mark, sec_info_type, use_rela_p, has_tls_reloc, *} \
. 0, 0, 0, 0, \
. \
. {* has_gp_reloc, need_finalize_relax, reloc_done, *} \
. 0, 0, 0, \
. \
. {* vma, lma, size, rawsize *} \
. 0, 0, 0, 0, \
. \
. {* output_offset, output_section, alignment_power, *} \
. 0, (struct bfd_section *) &SEC, 0, \
. \
. {* relocation, orelocation, reloc_count, filepos, rel_filepos, *} \
. NULL, NULL, 0, 0, 0, \
. \
. {* line_filepos, userdata, contents, lineno, lineno_count, *} \
. 0, NULL, NULL, NULL, 0, \
. \
. {* entsize, kept_section, moving_line_filepos, *} \
. 0, NULL, 0, \
. \
. {* target_index, used_by_bfd, constructor_chain, owner, *} \
. 0, NULL, NULL, NULL, \
. \
. {* symbol, *} \
. (struct bfd_symbol *) SYM, \
. \
. {* symbol_ptr_ptr, *} \
. (struct bfd_symbol **) SYM_PTR, \
. \
. {* map_head, map_tail *} \
. { NULL }, { NULL } \
. }
.
*/
/* We use a macro to initialize the static asymbol structures because
@ -662,46 +703,8 @@ static const asymbol global_syms[] =
#define STD_SECTION(SEC, FLAGS, SYM, NAME, IDX) \
const asymbol * const SYM = (asymbol *) &global_syms[IDX]; \
asection SEC = \
/* name, id, index, next, prev, flags, user_set_vma, */ \
{ NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
\
/* linker_mark, linker_has_input, gc_mark, gc_mark_from_eh, */ \
0, 0, 1, 0, \
\
/* segment_mark, sec_info_type, use_rela_p, has_tls_reloc, */ \
0, 0, 0, 0, \
\
/* has_gp_reloc, need_finalize_relax, reloc_done, */ \
0, 0, 0, \
\
/* vma, lma, size, rawsize */ \
0, 0, 0, 0, \
\
/* output_offset, output_section, alignment_power, */ \
0, (struct bfd_section *) &SEC, 0, \
\
/* relocation, orelocation, reloc_count, filepos, rel_filepos, */ \
NULL, NULL, 0, 0, 0, \
\
/* line_filepos, userdata, contents, lineno, lineno_count, */ \
0, NULL, NULL, NULL, 0, \
\
/* entsize, kept_section, moving_line_filepos, */ \
0, NULL, 0, \
\
/* target_index, used_by_bfd, constructor_chain, owner, */ \
0, NULL, NULL, NULL, \
\
/* symbol, */ \
(struct bfd_symbol *) &global_syms[IDX], \
\
/* symbol_ptr_ptr, */ \
(struct bfd_symbol **) &SYM, \
\
/* map_head, map_tail */ \
{ NULL }, { NULL } \
}
asection SEC = BFD_FAKE_SECTION(SEC, FLAGS, &global_syms[IDX], &SYM, \
NAME, IDX)
STD_SECTION (bfd_com_section, SEC_IS_COMMON, bfd_com_symbol,
BFD_COM_SECTION_NAME, 0);