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12 commits

Author SHA1 Message Date
Ian Lance Taylor
a3a33af390 Changes to support linker relaxing of embedded MIPS PIC code to
use a five instruction sequence for funtion calls which are out of
	range of the bal instruction.
	* libecoff.h (struct ecoff_section_tdata): Define.
	(ecoff_section_data): Define.
	(ecoff_bfd_relax_section): Don't define.
	* ecoff.c (ecoff_final_link_debug_accumulate): Don't read or free
	the debugging information if it has already been read.
	(ecoff_indirect_link_order): Handle _cooked_size being different
	from _raw_size.  Don't reread the contents or the relocs if they
	have already been read in.
	* coff-mips.c (mips_howto_table): Change bitsize of PCREL16 from
	18 to 16.
	(PCREL16_EXPANSION_ADJUSTMENT): Define.
	(mips_relocate_refhi): Take adjust argument.
	(mips_relocate_section): Handle reloc offsets stored in section
	used_by_bfd field.  Call mips_relax_pcrel16 to handle details of
	expanding an out of range PCREL16.  Keep trace of adjustments
	required by expansions.  Set s and unset h when converting a reloc
	from undefined to section.  Change handling of PC relative relocs:
	if against a section, they are correct in the object file, if
	against an external symbol they are pcrel_offset.
	(mips_relax_section): New function.
	(mips_relax_pcrel16): New function.
	(ecoff_bfd_relax_section): Define.
	* coff-alpha.c (ecoff_bfd_relax_section): Define.
	* ecofflink.c (bfd_ecoff_debug_accumulate): Handle adjustments
	built by mips_relax_section when writing out addresses.
	* elf32-mips.c (mips_elf_read_ecoff_info): Clear adjust field.
1994-03-25 22:37:55 +00:00
Ian Lance Taylor
68241b2b3f * aoutx.h, archive.c: Add casts to avoid warnings from SVR4 cc.
* ecoff.c, ecofflink.c, ecoffswap.h, srec.c: Likewise.
	* elf32-i386.c: Likewise.
	* elfcode.h (bfd_section_from_shdr): Make i unsigned; remove old
	#if 0 code.
	(elf_write_phdrs): Make i unsigned.
	(map_program_segments): Make i and n_left unsigned.
	(assign_file_positions_except_relocs): Make i unsigned.
	(write_shdrs_and_ehdr): Make count unsigned.
	(assign_file_positions_for_relocs): Make i unsigned.
	(NAME(bfd,elf_write_object_contents)): Make count unsigned.
	(section_from_elf_index): Make index argument unsigned.
1994-02-26 18:25:23 +00:00
Ian Lance Taylor
22a71fef07 * coff-alpha.c (alpha_relocate_section): Rewrite mask and shift
operation to avoid OSF 1.3 cc bug.
	* ecoff.c (ecoff_write_object_contents): Make text_size, data_size
	and bss_size bfd_size_type instead of unsigned long.  Make
	text_start and data_start bfd_vma instead of unsigned long.
	* ecofflink.c (ecoff_add_string): Remove incorrect cast of return
	value.
1994-02-21 17:56:38 +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
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
David MacKenzie
6a5439a91f Eliminate arg from bfd_xmalloc_by_size_t macro, allowing
undoing of obstack parts of last change.
1994-02-05 03:02:32 +00:00
David MacKenzie
0ee3427297 * libbfd.c (bfd_zmalloc): Call bfd_xmalloc instead of malloc.
(bfd_xmalloc, bfd_xmalloc_by_size_t): Functions deleted.
	* libbfd-in.h: Define them as macros calling xmalloc and declare
	xmalloc.
	* libbfd.h: Rebuilt.
	* ecofflink.c hash.c ieee.c opncls.c (obstack_chunk_alloc): Define
	to be xmalloc, not bfd_xmalloc_by_size_t.
1994-02-05 02:46:12 +00:00
Ian Lance Taylor
cbc174e7ab * ecofflink.c (bfd_ecoff_debug_externals): If a small undefined
symbol has a value in the ECOFF symbol but not in the BFD symbol,
	keep the value in the ECOFF symbol.  This helps gas.
1994-02-04 04:18:28 +00:00
Ian Lance Taylor
1fe2801ae6 * ecofflink.c (ecoff_align_debug): Align RFDs to debug_align. 1994-01-25 01:50:46 +00:00
Ian Lance Taylor
cf286547ef * ecofflink.c: Extensive changes to compress and merge debugging
information, and to write some of out directly rather than saving
	it in memory.  Several new functions and structures, and new
	arguments to existing functions.
	* ecoff.c (ecoff_compute_reloc_file_positions): Compute
	sym_filepos as well.
	(ecoff_get_extr): Use ifdmap instead of ifdbase.
	(ecoff_write_object_contents): Don't compute sym_filepos here.
	Only output symbols if outsymbols is not NULL.
	(ecoff_bfd_final_link): Adjust for changes in ecoff_debug_info and
	bfd_ecoff_debug functions.  Write out debugging information here.
	(ecoff_final_link_debug_accumulate): Adjust for changes in
	bfd_ecoff_debug functions.
	(ecoff_link_write_external): Use ifdmap rather than ifdbase.
	* elf32-mips.c (mips_elf_read_ecoff_info): Read external symbols
	first, to put them in the first memory buffer.  Clear fdr field.
	(mips_elf_get_extr): Use pointer to unswapped external symbol.
	(mips_elf_final_link): Adjust for changes in bfd_ecoff functions.
	Preserve .text, .data and .bss even if they are empty.  Save
	pointer to unswapped external symbol rather than copying it.
	Don't free up the external symbols.
	* libelf.h (elf_symbol_type): Change mips_extr to PTR.
	* bfd-in.h (bfd_ecoff_debug_init, bfd_ecoff_debug_free): Declare.
	(bfd_ecoff_debug_accumulate): Update declaration.
	(bfd_ecoff_debug_accumulate_other): Rename declaration from
	bfd_ecoff_debug_link_other and update.
	(bfd_ecoff_write_accumulated_debug): Declare.
	* bfd-in2.h: Rebuilt.
	* Makefile.in: Rebuilt dependencies.
1994-01-11 16:23:41 +00:00
Ian Lance Taylor
966e0a16b8 * ecoff.c: First cut at new style of linker backend for
ECOFF--added a bunch of functions.  Also:
	(ecoff_sec_to_styp_flags): Set flags for .pdata and .xdata.
	(ecoff_slurp_symbolic_header): New function.
	(ecoff_slurp_symbolic_info): Call ecoff_slurp_symbolic_header.
	(ecoff_compute_reloc_file_positions): New function.
	(ecoff_set_section_contents): Get out quickly if count is zero.
	Check errors better.
	(ecoff_write_object_contents): Put .xdata section in data segment.
	Call ecoff_compute_reloc_file_positions.  Don't output relocs or
	external symbols if outsymbols is NULL.
	(ecoff_bfd_final_link): Completely rewritten.
	* libecoff.h: Include bfdlink.h.
	(struct ecoff_backend_data): Add relocate_section field.
	(ecoff_data_type): Add sym_hashes and symndx_to_section fields.
	(struct ecoff_link_hash_entry): Define.
	(struct ecoff_link_hash_table): Define.
	(ecoff_bfd_link_add_symbols): Declare as function, not macro.
	(ecoff_bfd_link_hash_table_create): Likewise.
	* ecofflink.c (bfd_ecoff_debug_one_external): New function.
	(bfd_ecoff_debug_externals): Call bfd_ecoff_debug_one_external.
	* bfd-in.h (bfd_ecoff_debug_one_external): Declare.
	* bfd-in2.h: Rebuilt.
	* coff-alpha.c (alpha_howto_table): Mark BRADDR as
	partial_inplace, and set the src_mask to 0x1fffff.
	(alpha_ecoff_get_relocated_section_contents): Remove unused
	variable gp_warned.
	(alpha_convert_external_reloc): New static function.
	(alpha_relocate_section): New static function.
	(alpha_ecoff_backend_data): Initialize relocate_section field.
	* coff-mips.c (mips_relocate_refhi): New static function.
	(mips_relocate_section): New static function.
	(mips_ecoff_backend_data): Initialize relocate_section field.
1994-01-06 20:04:43 +00:00
Ian Lance Taylor
71efdf833f New file to hold ECOFF linking routines used by both ECOFF and MIPS ELF. 1993-11-24 07:18:44 +00:00