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Author SHA1 Message Date
Ian Lance Taylor
6c97aedf26 Distinguish a weak defined symbol from a regular defined symbol. 
* linker.c (enum link_action): Add DEFW.
	(link_action): Add bfd_link_hash_defweak column.
	(_bfd_generic_link_add_one_symbol): Add DEFW case.  Handle
	bfd_link_hash_defweak in a few other cases.
	* Many files (bfd_link_hash_undefweak): Renamed from
	bfd_link_hash_weak.
	* aoutx.h (aout_link_write_symbols): Handle bfd_link_hash_defweak.
	(aout_link_write_other_symbol): Likewise.
	(aout_link_input_section_std): Likewise.
	(aout_link_input_section_ext): Likewise.
	* bout.c (get_value): Likewise.
	* coff-a29k.c (coff_a29k_relocate_section): Likewise.
	* coff-alpha.c (alpha_convert_external_reloc): Likewise.
	(alpha_relocate_section): Likewise.
	* coff-mips.c (mips_relocate_section): Likewise.
	(mips_relax_section): Likewise.
	(bfd_mips_ecoff_create_embedded_relocs): Likewise.
	* cofflink.c (coff_write_global_sym): Likewise.
	(_bfd_coff_generic_relocate_section): Likewise.
	* ecoff.c (ecoff_link_add_externals): Likewise.
	(ecoff_link_write_external): LIkewise.
	* elf32-hppa.c (elf32_hppa_relocate_section): Likewise.
	(elf32_hppa_size_stubs): Likewise.
	* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Likewise.
	(elf_i386_relocate_section): Likewise.
	(elf_i386_finish_dynamic_symbol): Likewise.
	* elf32-mips.c (mips_elf_output_extsym): Likewise.
	(mips_elf_relocate_section): Likewise.
	* elf32-sparc.c (elf32_sparc_adjust_dynamic_symbol): Likewise.
	(elf32_sparc_relocate_section): Likewise.
	* elfcode.h (elf_link_add_object_symbols): Likewise.
	(elf_adjust_dynamic_symbol): Likewise.
	(elf_bfd_final_link): Likewise.
	(elf_link_output_extsym): Likewise.
	* i386linux.c (linux_add_one_symbol): Likewise.
	(linux_tally_symbols): Likewise.
	(linux_finish_dynamic_link): Likewise.
	* linker.c (_bfd_generic_link_output_symbols): Likewise.
	(set_symbol_from_hash): Likewise.
	* reloc16.c (bfd_coff_reloc16_get_value): Likewise.
	(bfd_perform_slip): Likewise.
	* sunos.c (sunos_add_one_symbol): Likewise.
	(sunos_scan_std_relocs): Likewise.
	(sunos_scan_ext_relocs): Likewise.
	(sunos_scan_dynamic_symbol): Likewise.
	(sunos_write_dynamic_symbol): Likewise.
 1995-02-06 20:01:08 +00:00
Ian Lance Taylor
040c913e18 * linker.c (_bfd_generic_link_add_one_symbol): Ignore 
redefinitions of an absolute symbol to the same value.
PR 6159.
 1995-01-11 19:38:06 +00:00
Ian Lance Taylor
9c26be63fd * linker.c (enum link_action): Add CIND. 
(link_action): Change COMMON_ROW\indr from MDEF to CREF.  Change
	INDR_ROW\common from MDEF to CIND.
	(_bfd_generic_link_add_one_symbol): In CREF case, handle an
	existing symbol which is indirect rather than defined.  Add new
	CIND case.
 1994-10-25 15:47:59 +00:00
Ken Raeburn
2e66a62730 linker.c (FAIL): Undefine macro before defining as enum. 1994-06-23 00:10:06 +00:00
Ian Lance Taylor
a537cb21bb * hash.c (bfd_hash_allocate): Don't call bfd_set_error if 
obstack_alloc returns NULL unless the size is non-zero.

	* linker.c (archive_hash_allocate): Define.
	(_bfd_generic_link_add_archive_symbols): Use archive_hash_allocate
	rather than obstack_alloc, for clarity.
 1994-06-22 22:37:54 +00:00
Ian Lance Taylor
22aabad533 * coff-i960.c (coff_i960_reloc_type_lookup): Add BFD_RELOC_CTOR. 
* linker.c (_bfd_generic_link_write_global_symbol): Don't assume
	the section of a common symbol is not NULL.
 1994-06-10 17:27:22 +00:00
Ian Lance Taylor
35fee729f2 * libaout.h (struct aout_link_hash_entry): New field written. 
* aoutx.h (NAME(aout,link_hash_newfunc)): Initialize written.
	(aout_link_write_symbols): Use written, not root.written.
	(aout_link_write_other_symbol): Likewise.
	* sunos.c (sunos_scan_dynamic_symbol): Likewise.
	* libecoff.h (struct ecoff_link_hash_entry): New field written.
	* ecoff.c (ecoff_link_hash_newfunc): Initialize written.
	(ecoff_link_write_external): use written, not root.written.
	* genlink.h (struct generic_link_hash_entry): New field written.
	* linker.c (_bfd_link_hash_newfunc): Don't initialize written.
	(generic_link_hash_newfunc): Initialize written.
	(_bfd_generic_link_output_symbols): Use written, not root.written.
	(_bfd_generic_link_write_global_symbol): Likewise.
	(_bfd_generic_reloc_link_order): Likewise.
 1994-06-06 18:42:38 +00:00
Ian Lance Taylor
420e63c685 Typo. 1994-05-10 02:04:58 +00:00
Bill Cox
eeb8c1873a * linker.c: Add missing comment terminator. 1994-05-10 01:58:35 +00:00
Ian Lance Taylor
8e5090ce3a * linker.c (_bfd_generic_link_add_one_symbol): If hashp and *hashp 
are not NULL, assume the caller has already looked up the symbol
	in the hash table and has stored the entry in *hashp.
	(generic_link_add_symbol_list): Set h to NULL before calling
	_bfd_generic_link_add_one_symbol.
	* ecoff.c (ecoff_link_add_externals): Likewise.
 1994-05-09 23:22:00 +00:00
Ian Lance Taylor
4335ce642d * linker.c (_bfd_generic_final_link): Set reloc_count to 0 before 
counting relocs.  Set SEC_RELOC flag for any section which has
	relocs.

	* linker.c (_bfd_default_link_order): Handle bfd_data_link_order.

	* linker.c (_bfd_generic_link_add_symbols): Just call
	generic_link_add_symbols.
	(_bfd_generic_link_add_symbols_collect): New function, like
	_bfd_generic_link_add_symbols but also collect constructors and
	destructors by name as collect2 does.
	(generic_link_add_symbols): New function, like old
	_bfd_generic_link_add_symbols but with collect argument.
	(generic_link_add_object_symbols): Take collect argument.
	(generic_link_check_archive_element_no_collect): New function.
	(generic_link_check_archive_element_collect): New function.
	(generic_link_check_archive_element): Take collect argument.
	(generic_link_add_symbol_list): Take collect argument.
	(_bfd_generic_link_add_one_symbol): Rename constructor argument to
	collect.
	* libbfd-in.h (_bfd_generic_link_add_symbols_collect): Declare.
	* libbfd.h: Rebuilt.
 1994-03-22 18:18:40 +00:00
Ian Lance Taylor
f1cca64780 Support for link_order types which generate relocs in order to 
support -Ur in the linker.
	* linker.c (generic_link_add_symbol_list): Remove bitsize argument
	from call to _bfd_generic_link_add_one_symbol.
	(_bfd_generic_link_add_one_symbol): Remove bitsize argument.
	Don't pass bitsize to constructor call back.  Pass BFD_RELOC_CTOR
	instead of bitsize to add_to_set call back.
	(_bfd_generic_final_link): Account for link_order relocs when
	allocating space for relocations.  Handle them in link_order loop.
	(_bfd_generic_reloc_link_order): New function.
	(_bfd_default_link_order): If a reloc_link_order is seen here,
	abort.
	(_bfd_count_link_order_relocs): New function.
	* libbfd-in.h (_bfd_generic_link_add_one_symbol): Remove bitsize
	argument from declaration.
	(_bfd_generic_reloc_link_order): Declare.
	(_bfd_count_link_order_relocs): Declare.
	* libbfd.h: Rebuilt.
	* aoutx.h (aout_link_add_symbols): Remove bitsize argument from
	call to _bfd_generic_link_add_one_symbol.
	(NAME(aout,final_link)): Account for link_order relocs when
	allocating space for relocations.  Handle them after handling all
	input BFDs.
	(aout_link_reloc_link_order): New function.
	* ecoff.c (ecoff_link_add_externals): Remove bitsize argument from
	call to _bfd_generic_link_add_one_symbol.
	(ecoff_bfd_final_link): Account for link_order relocs when
	allocating space for relocations.  Handle them in link_order loop.
	(ecoff_link_write_external): Set the storage class of a defined
	linker created symbol based on the section it is in.  Correct
	bfd_link_hash_weak case to use .sc rather than .st.
	(ecoff_reloc_link_order): New function.
	* coff-alpha.c (alpha_bfd_reloc_type_lookup): Handle
	BFD_RELOC_CTOR.
	* coff-mips.c (mips_bfd_reloc_type_lookup): Likewise.
 1994-03-22 00:27:05 +00:00
Jeff Law
6e58a4e5db * elf32-hppa.h (hppa_look_for_stub_in_section): Fix typo. Delete 
unused symbols argument.

        * elf32-hppa.c (hppa_elf_stub_reloc): Accept asymbol ** rather
        than asymbol * for original target symbol.  All callers changed.
        Set reloc->sym_ptr_ptr appropriately.
        (hppa_elf_build_linker_stub): Set reloc->sym_ptr_ptr correctly.
        (hppa_elf_look_for_stubs_in_section): No longer need symbols
        argument.  Use the output symbols when canonicalizing the relocs,
        creating them if necessary.

        * linker.c (_bfd_generic_link_output_symbols): Do not rebuild/clobber
        the output symbols if they already exist.
 1994-02-28 00:32:14 +00:00
Ian Lance Taylor
ecff0ffe9c * linker.c (_bfd_generic_link_write_global_symbol): Add missing 
break in switch.
 1994-02-26 05:37:41 +00:00
David MacKenzie
d1ad85a6e6 * bfd.c (bfd_get_error, bfd_set_error): New functions. 
(bfd_error): Make static.
	(bfd_error_type): Renamed from bfd_ec.  Prepend "bfd_error_" to
	all values.
	* bfd-in2.h: Regenerated.
	* aix386-core.c, aout-adobe.c, aout-encap.c, aout-target.h,
	aoutf1.h, aoutx.h, archive.c, archures.c,
	bfd.c, bout.c, cache.c, coff-alpha.c, coff-mips.c,
	coff-rs6000.c, coffcode.h, coffgen.c, core.c, ctor.c,
	ecoff.c, ecofflink.c, elf.c, elf32-hppa.c, elf32-mips.c,
	elfcode.h, format.c, hash.c, hp300hpux.c, hppabsd-core.c,
	i386lynx.c, ieee.c, libbfd.c, libelf.h, linker.c,
	lynx-core.c, nlm.c, nlm32-alpha.c, nlm32-i386.c,
	nlm32-sparc.c, nlmcode.h, oasys.c, opncls.c, osf-core.c,
	ptrace-core.c, reloc16.c, rs6000-core.c, section.c, som.c,
	srec.c, sunos.c, syms.c, targets.c, tekhex.c,
	trad-core.c: Change callers.
 1994-02-17 18:08:41 +00:00
Ken Raeburn
66d9f06f6d (default_indirect_link_order): In assertion, compare link_order size field 
against cooked size, not raw size, of input section.
 1994-02-16 00:57:48 +00:00
David MacKenzie
9783e04a64 Make all callers of malloc or realloc (including via obstacks) 
check the result for NULL.  Most set bfd_error to no_memory and
	return in that case; a few are harder to fix, and are marked
	with "FIXME <return type>".

	* elf32-hppa.c (hppa_elf_build_arg_reloc_stub
	hppa_elf_build_long_branch_stub):  Check bfd_make_empty_symbol return.
	* linker.c (_bfd_generic_link_output_symbols
	_bfd_generic_link_write_global_symbol): Ditto
	* section.c (bfd_make_section_anyway): Ditto.

	* tekhex.c (find_chunk tekhex_mkobject): Check bfd_alloc.
	(first_phase): Ditto.  FIXME void
	(tekhex_make_empty_symbol): Check bfd_zalloc.

	* sunos.c (sunos_read_dynamic_info): Check bfd_zalloc.
	(MY(read_dynamic_symbols) MY(read_dynamic_relocs)): Check bfd_alloc.

	* stringhash.c (_bfd_stringtab_hash_newfunc): Check bfd_hash_allocate.

	* srec.c: Indent.
	(fillup_symbols): Check bfd_alloc.  FIXME void
	(srec_mkobject srec_get_section_contents
	srec_set_section_contents): Check bfd_alloc.
	(srec_make_empty_symbol): Check bfd_zalloc.

	* som.c (hppa_som_gen_reloc_type): Check bfd_alloc_by_size_t.
	(make_unique_section): Check bfd_alloc.
	(som_new_section_hook): Check bfd_zalloc.
	(bfd_som_attach_aux_hdr): Ditto.  FIXME void

	* rs6000-core.c (rs6000coff_core_p): Check bfd_zalloc.

	* osf-core.c (osf_core_make_empty_symbol): Check bfd_zalloc.
	(osf_core_core_file_p): Check bfd_alloc.

	* oasys.c (oasys_slurp_symbol_table oasys_archive_p
	oasys_mkobject oasys_object_p oasys_new_section_hook
	oasys_set_section_contents): Check bfd_alloc.
	(oasys_slurp_section_data): Check bfd_zalloc and bfd_alloc.
	(oasys_make_empty_symbol): Check bfd_zalloc.

	* nlmcode.h (nlm_make_empty_symbol): Check bfd_zalloc.
	(nlm_slurp_symbol_table): Check bfd_zalloc and bfd_alloc.

	* nlm32-sparc.c (nlm_sparc_read_import): Check bfd_alloc.

	* nlm32-i386.c (nlm_i386_read_import): Check bfd_alloc.

	* nlm32-alpha.c (nlm_alpha_read_import): Check bfd_alloc.

	* linker.c (_bfd_link_hash_newfunc
	(generic_link_hash_newfunc
	(archive_hash_newfunc
	(_bfd_generic_link_add_one_symbol): Check bfd_hash_allocate.
	(_bfd_generic_final_link
	(_bfd_generic_link_output_symbols
	(default_indirect_link_order): Check bfd_alloc.
	(bfd_new_link_order): Check bfd_alloc_by_size_t.

	* irix-core.c (irix_core_make_empty_symbol): Check bfd_zalloc.

	* ieee.c: Indent.
	(read_id get_symbol get_section_entry ieee_archive_p ieee_object_p
	ieee_slurp_section_data ieee_new_section_hook): Check bfd_alloc.
	(do_one): Check bfd_alloc.  Return a boolean.
	(ieee_slurp_section_data): Check it.
	(init_for_output): Check bfd_alloc.  Return a boolean.
	(ieee_set_section_contents): Check it.
	(do_with_relocs):  Check bfd_alloc.  Return a boolean.
	(ieee_bfd_debug_info_accumulate): Ditto.  FIXME void.
	(ieee_mkobject): Check bfd_zalloc.
	(ieee_make_empty_symbol): Check bfd_zmalloc.

	* hpux-core.c (hpux_core_make_empty_symbol): Check
	bfd_zalloc.

	* hppabsd-core.c (hppabsd_core_make_empty_symbol): Check
	bfd_zalloc.
	(hppabsd_core_core_file_p): Check bfd_zalloc.

	* hp300hpux.c (MY(slurp_symbol_table)): Check bfd_alloc.

	* elfcode.h (elf_new_section_hook): Check bfd_alloc.
	(bfd_section_from_phdr): Ditto.
	(write_relocs): Ditto.  FIXME void
	(elf_map_symbols assign_section_numbers map_program_segments):
	Ditto.  Return a boolean.
	(swap_out_syms): Ditto.  Check elf_map_symbols.
	(elf_slurp_symbol_table): Check bfd_zalloc.
	(elf_slurp_reloca_table): Check bfd_alloc.
	(elf_slurp_reloc_table): Ditto.
	(elf_compute_section_file_positions): Check assign_section_numbers.
	(assign_file_positions_except_relocs): Return a boolean.
	Check map_program_segments.
	(elf_compute_section_file_positions): Check it.

	* elf32-mips.c (mips_elf_final_link): Check bfd_alloc.

	* elf32-hppa.c (hppa_elf_stub_branch_reloc): Check bfd_zmalloc and
	realloc.
	(hppa_elf_stub_reloc): Ditto.
	(hppa_elf_build_arg_reloc_stub): Check bfd_zalloc.
	(hppa_elf_build_long_branch_stub): Ditto.
	(elf32_hppa_backend_symbol_table_processing): Ditto.

	* ecoff.c (ecoff_set_symbol_info): Check bfd_alloc.  Return a boolean.
	(ecoff_slurp_symbol_table): Check it.
	(ecoff_slurp_armap): Check bfd_alloc.
	(ecoff_write_armap): Check bfd_zalloc.
	(ecoff_link_hash_newfunc): Check bfd_hash_allocate and
	_bfd_link_hash_newfunc.
	(ecoff_link_add_externals): Check bfd_alloc.

	* ctor.c (bfd_constructor_entry): Check bfd_alloc.

	* coffgen.c (coff_real_object_p): Check bfd_alloc.
	(coff_renumber_symbols): Check bfd_alloc_by_size_t.  Return a boolean.
	(coff_write_symbol): Check bfd_alloc.  FIXME int
	(coff_write_linenumbers): Check bfd_alloc.  Return a boolean.
	(coff_section_symbol): Check bfd_alloc_by_size_t.
	(coff_get_normalized_symtab): Check bfd_alloc.
	(coff_bfd_make_debug_symbol): Check bfd_zalloc.
	* libcoff-in.h: Change decls of coff_renumber_symbols,
	coff_write_linenumbers.
	* libcoff.h: Rebuilt.
	* coffcode.h (coff_write_object_contents): Check
	coff_renumber_symbols, coff_write_linenumbers.

	* coffcode.h: Indent.
	(coff_add_missing_symbols): Check bfd_alloc_by_size_t.  Return a
	boolean.
	(coff_write_object_contents): Check it.

	* coff-alpha.c (alpha_relocate_section): Check bfd_alloc.
	* coff-mips.c (mips_relocate_section): Ditto.

	* archive.c (bfd_slurp_bsd_armap_f2): Check bfd_alloc value.
	(do_slurp_bsd_armap): Ditto.
	(compute_and_write_armap): Check bfd_realloc value.

	* aoutx.h (translate_from_native_sym_flags): Check bfd_alloc
	return value.  Return boolean value.
	(NAME(aout,make_empty_symbol)): Check bfd_zalloc return value.
	(NAME(aout,slurp_symbol_table)): Check bf_alloc and bfd_zalloc
	return value.
	(add_to_stringtab): Ditto.  FIXME void
	(aout_link_hash_newfunc): Check bfd_hash_allocate return value.
	(aout_link_add_symbols): Check bfd_alloc value.
	(translate_symbol_table): Check translate_from_native_sym_flags.
	* hp300hpux.c (MY(slurp_symbol_table)): Ditto.
	* aoutx.h (aout_link_hash_newfunc): Check _bfd_link_hash_newfunc.

	* opncls.c (bfd_zalloc bfd_realloc): Check result of bfd_alloc.

	* opncls.c (obstack_chunk_alloc): Define as malloc, not
	bfd_xmalloc_by_size_t.
	(_bfd_new_bfd): Check obstack_begin for 0 return.

	* ieee.c (obstack_chunk_alloc): Define as malloc, not
	bfd_xmalloc_by_size_t.
	(ieee_archive_p): Check obstack_begin for 0 return and
	obstack_finish for NULL return.

	* hash.c (obstack_chunk_alloc): Define as malloc, not
	bfd_xmalloc_by_size_t.
	(bfd_hash_table_init_n): Check obstack_begin for 0 return and
	obstack_finish for NULL return.
	(bfd_hash_lookup): Check obstack_alloc for NULL return.

	* ecofflink.c (obstack_chunk_alloc): Define as malloc, not
	bfd_xmalloc_by_size_t.
	bfd_ecoff_debug_accumulate
	bfd_ecoff_debug_accumulate_other): Check obstack_alloc.
	(add_file_shuffle add_memory_shuffle): Check obstack_alloc for
	NULL return.  Return boolean, not void.
	(bfd_ecoff_debug_init): Check obstack_begin for 0 return.
	(bfd_ecoff_debug_accumulate): Check add_file_shuffle
	and add_memory_shuffle return.
	(string_hash_newfunc): Check bfd_hash_allocate and bfd_hash_newfunc.
	(bfd_ecoff_debug_accumulate): Check bfd_alloc.
	(ecoff_add_string): Check add_memory_shuffle return.

	* libbfd-in.h (xmalloc, bfd_xmalloc, bfd_xmalloc_by_size_t):
	Remove decls.
	* libbfd.h: Rebuilt.
 1994-02-12 00:45:54 +00:00
Ian Lance Taylor
5072b8e530 * linker.c (_bfd_generic_link_output_symbols, 
_bfd_generic_link_write_global_symbol): Don't require that all
	references to a common symbol be themselves common symbols.
 1994-02-03 23:01:49 +00:00
Ian Lance Taylor
c315696657 * linker.c (generic_link_add_symbol_list): If symbol is common, 
set the BSF_OLD_COMMON flag.
 1994-01-27 18:56:42 +00:00
Ian Lance Taylor
a20bdb43f0 * linker.c (generic_link_check_achive_element): Set SEC_ALLOC flag 
for a created common section.
	(_bfd_generic_link_add_one_symbol): Likewise.
 1994-01-24 23:56:56 +00:00
Ian Lance Taylor
d4366f97ef Comment fix. 1994-01-18 20:51:15 +00:00
Ian Lance Taylor
92f345b9e4 * linker.c (default_indirect_link_order): Don't expect space for 
output relocations if there aren't any input relocations.
 1994-01-12 20:33:30 +00:00
Ian Lance Taylor
6e07e54f1b * linker.c (_bfd_generic_link_add_one_symbol): Add constructor and 
bitsize arguments.  Changed all callers (aoutx.h).
	(default_indirect_link_order): Renamed from
	_bfd_generic_indirect_link_order and made static.
	(_bfd_generic_final_link): Don't switch on link_order type, just
	call _bfd_default_link_order.
	(_bfd_default_link_order): Handle bfd_indirect_link_order type.
	* genlink.h: Removed declaration of
	_bfd_generic_indirect_link_order.
	* elf32-mips.c (mips_elf_final_link): Don't switch on link_order
	type, just call _bfd_default_link_order.
 1994-01-06 20:01:42 +00:00
Ian Lance Taylor
da6b2d99f7 Added new files for linker support, and removed old seclet files. 1993-12-30 20:03:34 +00:00