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4c3721d514
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.
290 lines
9.3 KiB
C
290 lines
9.3 KiB
C
/* Target definitions for 32-bit ELF
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Copyright 1993 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This structure contains everything that BFD knows about a target.
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It includes things like its byte order, name, what routines to call
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to do various operations, etc. Every BFD points to a target structure
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with its "xvec" member.
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There are two such structures here: one for big-endian machines and
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one for little-endian machines. */
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/* Archives are generic or unimplemented. */
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#ifndef bfd_elf32_slurp_armap
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#define bfd_elf32_slurp_armap bfd_slurp_coff_armap
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#endif
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#define bfd_elf32_slurp_extended_name_table _bfd_slurp_extended_name_table
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#define bfd_elf32_truncate_arname bfd_dont_truncate_arname
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#define bfd_elf32_openr_next_archived_file bfd_generic_openr_next_archived_file
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#define bfd_elf32_generic_stat_arch_elt bfd_generic_stat_arch_elt
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#ifndef bfd_elf32_write_armap
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#define bfd_elf32_write_armap coff_write_armap
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#endif
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/* Ordinary section reading and writing */
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#define bfd_elf32_get_section_contents bfd_generic_get_section_contents
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#define bfd_elf32_close_and_cleanup bfd_generic_close_and_cleanup
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#define bfd_elf32_bfd_debug_info_start bfd_void
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#define bfd_elf32_bfd_debug_info_end bfd_void
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#define bfd_elf32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
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#define bfd_elf32_bfd_get_relocated_section_contents \
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bfd_generic_get_relocated_section_contents
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#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
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#define bfd_elf32_bfd_make_debug_symbol \
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((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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#ifndef bfd_elf32_bfd_link_hash_table_create
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#define bfd_elf32_bfd_link_hash_table_create \
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_bfd_generic_link_hash_table_create
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#endif
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#ifndef bfd_elf32_bfd_link_add_symbols
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#define bfd_elf32_bfd_link_add_symbols _bfd_generic_link_add_symbols
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#endif
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#ifndef bfd_elf32_bfd_final_link
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#define bfd_elf32_bfd_final_link _bfd_generic_final_link
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#endif
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#ifndef elf_info_to_howto_rel
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#define elf_info_to_howto_rel 0
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#endif
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#ifndef ELF_MAXPAGESIZE
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#define ELF_MAXPAGESIZE 1
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#endif
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#ifndef elf_backend_sym_is_global
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#define elf_backend_sym_is_global 0
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#endif
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#ifndef elf_backend_object_p
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#define elf_backend_object_p 0
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#endif
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#ifndef elf_backend_symbol_processing
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#define elf_backend_symbol_processing 0
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#endif
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#ifndef elf_backend_symbol_table_processing
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#define elf_backend_symbol_table_processing 0
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#endif
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#ifndef elf_backend_section_processing
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#define elf_backend_section_processing 0
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#endif
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#ifndef elf_backend_section_from_shdr
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#define elf_backend_section_from_shdr 0
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#endif
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#ifndef elf_backend_fake_sections
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#define elf_backend_fake_sections 0
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#endif
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#ifndef elf_backend_section_from_bfd_section
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#define elf_backend_section_from_bfd_section 0
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#endif
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#ifndef elf_backend_final_write_processing
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#define elf_backend_final_write_processing 0
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#endif
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#ifndef elf_backend_ecoff_debug_swap
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#define elf_backend_ecoff_debug_swap 0
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#endif
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static CONST struct elf_backend_data elf32_bed =
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{
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#ifdef USE_REL
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0, /* use_rela_p */
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#else
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1, /* use_rela_p */
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#endif
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0, /* elf_64_p */
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ELF_ARCH, /* arch */
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ELF_MACHINE_CODE, /* elf_machine_code */
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ELF_MAXPAGESIZE, /* maxpagesize */
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elf_info_to_howto,
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elf_info_to_howto_rel,
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elf_backend_sym_is_global,
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elf_backend_object_p,
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elf_backend_symbol_processing,
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elf_backend_symbol_table_processing,
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elf_backend_section_processing,
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elf_backend_section_from_shdr,
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elf_backend_fake_sections,
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elf_backend_section_from_bfd_section,
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elf_backend_final_write_processing,
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elf_backend_ecoff_debug_swap
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};
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#ifdef TARGET_BIG_SYM
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bfd_target TARGET_BIG_SYM =
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{
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/* name: identify kind of target */
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TARGET_BIG_NAME,
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/* flavour: general indication about file */
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bfd_target_elf_flavour,
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/* byteorder_big_p: data is big endian */
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true,
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/* header_byteorder_big_p: header is also big endian */
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true,
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/* object_flags: mask of all file flags */
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(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
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DYNAMIC | WP_TEXT),
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/* section_flags: mask of all section flags */
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
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SEC_CODE | SEC_DATA | SEC_DEBUGGING),
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/* leading_symbol_char: is the first char of a user symbol
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predictable, and if so what is it */
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0,
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/* ar_pad_char: pad character for filenames within an archive header
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FIXME: this really has nothing to do with ELF, this is a characteristic
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of the archiver and/or os and should be independently tunable */
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'/',
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/* ar_max_namelen: maximum number of characters in an archive header
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FIXME: this really has nothing to do with ELF, this is a characteristic
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of the archiver and should be independently tunable. This value is
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a WAG (wild a** guess) */
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15,
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/* align_power_min: minimum alignment restriction for any section
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FIXME: this value may be target machine dependent */
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3,
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/* Routines to byte-swap various sized integers from the data sections */
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bfd_getb64, bfd_getb_signed_64, bfd_putb64,
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bfd_getb32, bfd_getb_signed_32, bfd_putb32,
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bfd_getb16, bfd_getb_signed_16, bfd_putb16,
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/* Routines to byte-swap various sized integers from the file headers */
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bfd_getb64, bfd_getb_signed_64, bfd_putb64,
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bfd_getb32, bfd_getb_signed_32, bfd_putb32,
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bfd_getb16, bfd_getb_signed_16, bfd_putb16,
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/* bfd_check_format: check the format of a file being read */
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{ _bfd_dummy_target, /* unknown format */
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bfd_elf32_object_p, /* assembler/linker output (object file) */
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bfd_generic_archive_p, /* an archive */
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bfd_elf32_core_file_p /* a core file */
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},
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/* bfd_set_format: set the format of a file being written */
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{ bfd_false,
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bfd_elf_mkobject,
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_bfd_generic_mkarchive,
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bfd_false
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},
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/* bfd_write_contents: write cached information into a file being written */
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{ bfd_false,
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bfd_elf32_write_object_contents,
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_bfd_write_archive_contents,
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bfd_false
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},
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/* Initialize a jump table with the standard macro. All names start with
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"elf" */
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JUMP_TABLE(bfd_elf32),
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/* backend_data: */
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(PTR) &elf32_bed,
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};
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#endif
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#ifdef TARGET_LITTLE_SYM
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bfd_target TARGET_LITTLE_SYM =
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{
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/* name: identify kind of target */
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TARGET_LITTLE_NAME,
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/* flavour: general indication about file */
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bfd_target_elf_flavour,
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/* byteorder_big_p: data is big endian */
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false, /* Nope -- this one's little endian */
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/* header_byteorder_big_p: header is also big endian */
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false, /* Nope -- this one's little endian */
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/* object_flags: mask of all file flags */
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(HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
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DYNAMIC | WP_TEXT),
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/* section_flags: mask of all section flags */
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
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SEC_CODE | SEC_DATA | SEC_DEBUGGING),
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/* leading_symbol_char: is the first char of a user symbol
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predictable, and if so what is it */
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0,
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/* ar_pad_char: pad character for filenames within an archive header
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FIXME: this really has nothing to do with ELF, this is a characteristic
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of the archiver and/or os and should be independently tunable */
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'/',
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/* ar_max_namelen: maximum number of characters in an archive header
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FIXME: this really has nothing to do with ELF, this is a characteristic
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of the archiver and should be independently tunable. This value is
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a WAG (wild a** guess) */
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15,
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/* align_power_min: minimum alignment restriction for any section
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FIXME: this value may be target machine dependent */
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3,
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/* Routines to byte-swap various sized integers from the data sections */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16,
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/* Routines to byte-swap various sized integers from the file headers */
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bfd_getl64, bfd_getl_signed_64, bfd_putl64,
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bfd_getl32, bfd_getl_signed_32, bfd_putl32,
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bfd_getl16, bfd_getl_signed_16, bfd_putl16,
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/* bfd_check_format: check the format of a file being read */
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{ _bfd_dummy_target, /* unknown format */
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bfd_elf32_object_p, /* assembler/linker output (object file) */
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bfd_generic_archive_p, /* an archive */
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bfd_elf32_core_file_p /* a core file */
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},
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/* bfd_set_format: set the format of a file being written */
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{ bfd_false,
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bfd_elf_mkobject,
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_bfd_generic_mkarchive,
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bfd_false
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},
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/* bfd_write_contents: write cached information into a file being written */
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{ bfd_false,
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bfd_elf32_write_object_contents,
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_bfd_write_archive_contents,
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bfd_false
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},
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/* Initialize a jump table with the standard macro. All names start with
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"elf" */
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JUMP_TABLE(bfd_elf32),
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/* backend_data: */
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(PTR) &elf32_bed,
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};
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#endif
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