Commit Graph

8 Commits

Author SHA1 Message Date
Ian Lance Taylor
4c3721d514 Extensive changes to move the bulk of the linker into BFD so that
more efficient backend code can be written for specific object
	files.  Only existing efficient backend is a.out.
	* seclet.c, seclet.h: Removed.
	* hash.c, linker.c, genlink.h: New files.
	* bfd-in.h: Removed bfd_error_vector.  Declared hash table
	structures and functions.
	(JUMP_TABLE): Removed bfd_seclet_link, added
	bfd_link_hash_table_create, bfd_link_add_symbols and
	bfd_final_link.
	* All backends: Changed accordingly.
	* bfd-in2.h: Rebuilt.
	* bfd.c (struct _bfd): Added link_next and archive_pass fields.
	Removed ld_symbols field.
	(bfd_nonrepresentable_section, bfd_undefined_symbol,
	bfd_reloc_value_truncated, bfd_reloc_is_dangerous,
	bfd_error_vector): Removed.
	(bfd_default_error_trap, bfd_error_trap,
	bfd_error_nonrepresentabltrap): Removed.
	(bfd_get_relocated_section_contents): Pass link_info.  Pass
	link_order instead of seclet.  Pass symbols.
	(bfd_relax_section): Pass link_info.
	(bfd_seclet_link): Removed.
	(bfd_link_hash_table_create, bfd_link_add_symbols,
	bfd_final_link): New macros.
	* libbfd-in.h: If __GNUC__ is defined and alloca is not, define
	alloca as __builtin_alloca.  Declare internal linking functions.
	* libbfd.h: Rebuilt.
	* libbfd.c (bfd_seek): Comment out fseek assertion.  It's worked
	for months.
	* reloc.c (reloc_howto_type): Added error_message argument to
	special_function field.  Changed all callers and all definitions.
	(bfd_get_reloc_size): Make argument a const pointer.
	(bfd_perform_relocation): Add error_message argument to hold
	string set if return value if bfd_reloc_dangerous.  Changed all
	callers.
	(_bfd_final_link_relocate, _bfd_relocate_contents): New functions.
	* section.c (asection): Renamed seclets_head and seclets_tail to
	link_order_head and link_order_tail.
	* targets.c (bfd_target): Replaced seclet argument with link_info
	and link_order and symbols arguments in
	bfd_get_relocated_section_contents.  Added symbols argument to
	bfd_relax_section.  Removed bfd_seclet_link.  Added
	bfd_link_hash_table_create, bfd_link_add_symbols and
	bfd_final_link.
	* libaout.h (struct aoutdata): Added external_syms,
	external_sym_count, external_strings, sym_hashes fields.
	(obj_aout_external_syms, obj_aout_external_sym_count,
	obj_aout_external_strings, obj_aout_sym_hashes): New accessor
	macros.
	(WRITE_HEADERS): Only output symbols if outsymbols is not NULL.
	* aoutx.h: Wrote new back end linker routines.
	(translate_to_native_sym_flags): Return boolean value.  Don't use
	bfd_error_vector.
	(NAME(aout,write_syms)): Return boolean value.  Check return value
	of translate_to_native_sym_flags and bfd_write.
	* aout-target.h (final_link_callback): New function.
	(MY_bfd_final_link): New function.
	* aout-adobe.c (aout_adobe_write_object_contents): Check return
	value of aout_32_write_syms.
	* hp300hpux.c (MY(write_object_contents)): Likewise.
	* i386lynx.c (WRITE_HEADERS): Likewise.
	* libaout.h (WRITE_HEADERS): Likewise.
	* bout.c: Changed functions to use link_info->callbacks rather
	than bfd_error_vector, and link_orders rather than seclets.
	* coff-alpha.c: Likewise.
	* coff-h8300.c: Likewise.
	* coff-h8500.c: Likewise.
	* coff-sh.c: Likewise.
	* coff-z8k.c: Likewise.
	* elf32-hppa.c: Likewise.
	* reloc16.c: Likewise.
	* coff-alpha.c (alpha_ecoff_get_relocated_section_contents): Look
	up _gp in the hash table rather than in outsymbols.
	* coff-a29k.c (a29k_reloc): Pass errors back in new error_message
	argument rather than printing them.
	* coffcode.h (bfd_coff_reloc16_extra_cases): Take link_info and
	link_order arguments rather than seclet.  Changed all uses and
	definitions.
	(bfd_coff_reloc16_estimate): Pass link_info arguments.  Changed
	all uses and definitions.
	* libcoff.h: Rebuilt.
	* ecoff.c (ecoff_get_extr): If symbol is defined by linker, but
	not by ECOFF, make it scAbs.
	(ecoff_bfd_final_link): Renamed from ecoff_bfd_seclet_link and
	rewritten.
	* elf32-mips.c (mips_elf_final_link): Renamed from
	mips_elf_seclet_link and rewritten.
	* elf32-hppa.c (elf32_hppa_stub_description): Added link_info
	field.
	(new_stub, add_stub_by_name, hppa_elf_build_arg_reloc_stub,
	hppa_elf_build_long_branch_stub, hppa_look_for_stubs_in_section):
	Added link_info arguments.  Changed all callers.
	* elfcode.h (elf_slurp_symbol_table): Don't quit if outsymbols is
	not NULL.
	* oasys.c (oasys_write_sections): Return boolean value rather than
	using bfd_error_vector.
	(oasys_write_object_contents): Check return value of
	oasys_write_sections.
	* hosts/std-host.h: Don't declare qsort or strtol.
	* Makefile.in: Rebuild dependencies.
	(BFD_LIBS): Removed seclet.o.  Added hash.o and linker.o.
	(CFILES): Removed seclet.c.  Added hash.c and linker.c.
	(HFILES): Removed seclet.h.  Added genlink.h.
1993-12-30 19:56:50 +00:00
Ian Lance Taylor
643e9fc768 * libelf.h (struct elf_backend_data): Added fields
elf_backend_sym_is_global and elf_backend_final_write_processing.
	* elf32-target.h (elf32_bed): Added corresponding initializers.
	* elf64-target.h (elf64_bed): Likewise.
1993-11-18 17:10:42 +00:00
Ian Lance Taylor
a5ccdad1fc * elfcode.h (elf_object_p): Rather than looking through an array
of architectures, get the ELF EM_xxx code from the backend
	information.  Let the generic ELF target match any EM_xxx code not
	matched by another ELF target.  Call elf_backend_object_p to let
	the backend do more checks and set global information.
	* libelf.h (struct elf_backend_data): Added elf_machine_code and
	elf_backend_object_p fields.
	(struct bfd_elf_arch_map): Removed.
	(bfd_elf_arch_map, bfd_elf_arch_map_size): Don't declare.
	* elf32-target.h, elf64-target.h: Initialize elf_machine_code
	field with ELF_MACHINE_CODE.  Initialize elf_backend_object_p
	field with elf_backend_object_p (if it is defined).
	* elf32-gen.c, elf32-hppa.c, elf32-i386.c, elf32-i860.c,
	elf32-m68k.c, elf32-m88k.c, elf32-mips.c, elf32-sparc.c,
	elf64-gen.c (ELF_MACHINE_CODE): Defined.
	* elf32-mips.c: Include ecoffswap.h to get ECOFF swapping
	routines.
	(mips_elf_object_p): Set the right machine number.
	(mips_elf_ecoff_debug_swap): Defined.
	(elf_backend_object_p): Defined to be mips_elf_object_p.
	(elf_backend_ecoff_debug_swap): Defined to be
	mips_elf_ecoff_debug_swap.
	* elf.c (bfd_elf_arch_map, bfd_elf_arch_map_size): Removed.

	* elf32-mips.c (elf_mips_howto_table): Don't complain on overflow
	for R_MIPS_26.  Correct overflow detection requires matching the
	upper four bits of the destination against the PC.  From Ted Lemon
	<mellon@pepper.ncd.com>.

	* elf32-hppa.c (elf_hppa_reloc_type_lookup): Return type
	should point to const data.
1993-11-09 21:08:58 +00:00
Ian Lance Taylor
95469b0290 * libelf.h: Added some comments.
(struct elf_backend_data): Added elf_backend_ecoff_debug_swap
	field.  Removed unused write_relocs field.
	* elf32-target.h: Adjusted elf_backend_data initialization
	accordingly.
	* elf64-target.h: Corrected elf_backend_data initialization to
	fill in all fields and to set elf_64_p to 1.
1993-11-09 16:33:28 +00:00
Ian Lance Taylor
d6e5f95000 * section.c (SEC_DEBUGGING): New section flag.
* elfcode.h (bfd_section_from_shdr): If section is SHT_PROGBITS,
	and the name starts with .debug, .line or .stab, set
	SEC_DEBUGGING.
	* elf32-target.h (TARGET_BIG_SYM, TARGET_LITTLE_SYM): Added
	SEC_DEBUGGING to section_flags.
	* elf64-target.h (TARGET_BIG_SYM, TARGET_LITTLE_SYM): Added
	SEC_DEBUGGING and SEC_CODE to section_flags.
	* bfd-in2.h: Updated.
1993-09-23 15:14:12 +00:00
Ian Lance Taylor
23f44e6f1a * libbfd-in.h: Removed swapping routines declarations.
* bfd-in.h: Added swapping routine declarations, and renamed them
	from _do_* to bfd_*.
	* libbfd.c: Renamed swapping routines from _do_* to _bfd_*.
	* Changed all callers.
	* libbfd.h, bfd-in2.h: Rebuilt.
1993-09-07 18:32:33 +00:00
Ken Raeburn
b3024965a0 (elfXX_bed): Initialize maxpagesize from ELF_MAXPAGESIZE.
(ELF_MAXPAGESIZE): Default to 1.
1993-07-26 18:46:37 +00:00
Ken Raeburn
3adad029e0 new generic elf64 stuff 1993-06-30 02:52:52 +00:00