| elf32-i386.c (77302) | elf32-i386.c (78832) |
|---|---|
| 1/* Intel 80386/80486-specific support for 32-bit ELF | 1/* Intel 80386/80486-specific support for 32-bit ELF |
| 2 Copyright 1993, 94, 95, 96, 97, 98, 99, 2000 | 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
| 3 Free Software Foundation, Inc. 4 5This file is part of BFD, the Binary File Descriptor library. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program; if not, write to the Free Software 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 | 3 Free Software Foundation, Inc. 4 5This file is part of BFD, the Binary File Descriptor library. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program; if not, write to the Free Software 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 |
| 21/* $FreeBSD: head/contrib/binutils/bfd/elf32-i386.c 77302 2001-05-28 05:52:12Z obrien $ */ | 21/* $FreeBSD: head/contrib/binutils/bfd/elf32-i386.c 78832 2001-06-26 17:15:34Z obrien $ */ |
| 22 23#include "bfd.h" 24#include "sysdep.h" 25#include "bfdlink.h" 26#include "libbfd.h" 27#include "elf-bfd.h" 28 29static reloc_howto_type *elf_i386_reloc_type_lookup --- 472 unchanged lines hidden (view full) --- 502 rel_end = relocs + sec->reloc_count; 503 for (rel = relocs; rel < rel_end; rel++) 504 { 505 unsigned long r_symndx; 506 struct elf_link_hash_entry *h; 507 508 r_symndx = ELF32_R_SYM (rel->r_info); 509 | 22 23#include "bfd.h" 24#include "sysdep.h" 25#include "bfdlink.h" 26#include "libbfd.h" 27#include "elf-bfd.h" 28 29static reloc_howto_type *elf_i386_reloc_type_lookup --- 472 unchanged lines hidden (view full) --- 502 rel_end = relocs + sec->reloc_count; 503 for (rel = relocs; rel < rel_end; rel++) 504 { 505 unsigned long r_symndx; 506 struct elf_link_hash_entry *h; 507 508 r_symndx = ELF32_R_SYM (rel->r_info); 509 |
| 510 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) 511 { 512 if (abfd->my_archive) 513 (*_bfd_error_handler) (_("%s(%s): bad symbol index: %d"), 514 bfd_get_filename (abfd->my_archive), 515 bfd_get_filename (abfd), 516 r_symndx); 517 else 518 (*_bfd_error_handler) (_("%s: bad symbol index: %d"), 519 bfd_get_filename (abfd), 520 r_symndx); 521 return false; 522 } 523 |
|
| 510 if (r_symndx < symtab_hdr->sh_info) 511 h = NULL; 512 else 513 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 514 515 /* Some relocs require a global offset table. */ 516 if (dynobj == NULL) 517 { --- 169 unchanged lines hidden (view full) --- 687 (*_bfd_error_handler) (_("%s(%s): bad relocation section name `%s\'"), 688 bfd_get_filename (abfd->my_archive), 689 bfd_get_filename (abfd), 690 name); 691 else 692 (*_bfd_error_handler) (_("%s: bad relocation section name `%s\'"), 693 bfd_get_filename (abfd), 694 name); | 524 if (r_symndx < symtab_hdr->sh_info) 525 h = NULL; 526 else 527 h = sym_hashes[r_symndx - symtab_hdr->sh_info]; 528 529 /* Some relocs require a global offset table. */ 530 if (dynobj == NULL) 531 { --- 169 unchanged lines hidden (view full) --- 701 (*_bfd_error_handler) (_("%s(%s): bad relocation section name `%s\'"), 702 bfd_get_filename (abfd->my_archive), 703 bfd_get_filename (abfd), 704 name); 705 else 706 (*_bfd_error_handler) (_("%s: bad relocation section name `%s\'"), 707 bfd_get_filename (abfd), 708 name); |
| 695 } | 709 } |
| 696 697 sreloc = bfd_get_section_by_name (dynobj, name); 698 if (sreloc == NULL) 699 { 700 flagword flags; 701 702 sreloc = bfd_make_section (dynobj, name); 703 flags = (SEC_HAS_CONTENTS | SEC_READONLY --- 115 unchanged lines hidden (view full) --- 819 return NULL; 820} 821 822/* Update the got entry reference counts for the section being removed. */ 823 824static boolean 825elf_i386_gc_sweep_hook (abfd, info, sec, relocs) 826 bfd *abfd; | 710 711 sreloc = bfd_get_section_by_name (dynobj, name); 712 if (sreloc == NULL) 713 { 714 flagword flags; 715 716 sreloc = bfd_make_section (dynobj, name); 717 flags = (SEC_HAS_CONTENTS | SEC_READONLY --- 115 unchanged lines hidden (view full) --- 833 return NULL; 834} 835 836/* Update the got entry reference counts for the section being removed. */ 837 838static boolean 839elf_i386_gc_sweep_hook (abfd, info, sec, relocs) 840 bfd *abfd; |
| 827 struct bfd_link_info *info ATTRIBUTE_UNUSED; | 841 struct bfd_link_info *info; |
| 828 asection *sec; 829 const Elf_Internal_Rela *relocs; 830{ 831 Elf_Internal_Shdr *symtab_hdr; 832 struct elf_link_hash_entry **sym_hashes; 833 bfd_signed_vma *local_got_refcounts; 834 const Elf_Internal_Rela *rel, *relend; 835 unsigned long r_symndx; --- 1231 unchanged lines hidden (view full) --- 2067 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 2068 } 2069 2070 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; 2071 2072 return true; 2073} 2074 | 842 asection *sec; 843 const Elf_Internal_Rela *relocs; 844{ 845 Elf_Internal_Shdr *symtab_hdr; 846 struct elf_link_hash_entry **sym_hashes; 847 bfd_signed_vma *local_got_refcounts; 848 const Elf_Internal_Rela *rel, *relend; 849 unsigned long r_symndx; --- 1231 unchanged lines hidden (view full) --- 2081 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); 2082 } 2083 2084 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; 2085 2086 return true; 2087} 2088 |
| 2089/* Set the correct type for an x86 ELF section. We do this by the 2090 section name, which is a hack, but ought to work. */ 2091 2092static boolean 2093elf_i386_fake_sections (abfd, hdr, sec) 2094 bfd *abfd ATTRIBUTE_UNUSED; 2095 Elf32_Internal_Shdr *hdr; 2096 asection *sec; 2097{ 2098 register const char *name; 2099 2100 name = bfd_get_section_name (abfd, sec); 2101 2102 if (strcmp (name, ".reloc") == 0) 2103 /* 2104 * This is an ugly, but unfortunately necessary hack that is 2105 * needed when producing EFI binaries on x86. It tells 2106 * elf.c:elf_fake_sections() not to consider ".reloc" as a section 2107 * containing ELF relocation info. We need this hack in order to 2108 * be able to generate ELF binaries that can be translated into 2109 * EFI applications (which are essentially COFF objects). Those 2110 * files contain a COFF ".reloc" section inside an ELFNN object, 2111 * which would normally cause BFD to segfault because it would 2112 * attempt to interpret this section as containing relocation 2113 * entries for section "oc". With this hack enabled, ".reloc" 2114 * will be treated as a normal data section, which will avoid the 2115 * segfault. However, you won't be able to create an ELFNN binary 2116 * with a section named "oc" that needs relocations, but that's 2117 * the kind of ugly side-effects you get when detecting section 2118 * types based on their names... In practice, this limitation is 2119 * unlikely to bite. 2120 */ 2121 hdr->sh_type = SHT_PROGBITS; 2122 2123 return true; 2124} 2125 2126 |
|
| 2075#define TARGET_LITTLE_SYM bfd_elf32_i386_vec 2076#define TARGET_LITTLE_NAME "elf32-i386" 2077#define ELF_ARCH bfd_arch_i386 2078#define ELF_MACHINE_CODE EM_386 2079#define ELF_MAXPAGESIZE 0x1000 2080 2081#define elf_backend_can_gc_sections 1 2082#define elf_backend_want_got_plt 1 --- 14 unchanged lines hidden (view full) --- 2097#define elf_backend_check_relocs elf_i386_check_relocs 2098#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections 2099#define elf_backend_finish_dynamic_sections elf_i386_finish_dynamic_sections 2100#define elf_backend_finish_dynamic_symbol elf_i386_finish_dynamic_symbol 2101#define elf_backend_gc_mark_hook elf_i386_gc_mark_hook 2102#define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook 2103#define elf_backend_relocate_section elf_i386_relocate_section 2104#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections | 2127#define TARGET_LITTLE_SYM bfd_elf32_i386_vec 2128#define TARGET_LITTLE_NAME "elf32-i386" 2129#define ELF_ARCH bfd_arch_i386 2130#define ELF_MACHINE_CODE EM_386 2131#define ELF_MAXPAGESIZE 0x1000 2132 2133#define elf_backend_can_gc_sections 1 2134#define elf_backend_want_got_plt 1 --- 14 unchanged lines hidden (view full) --- 2149#define elf_backend_check_relocs elf_i386_check_relocs 2150#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections 2151#define elf_backend_finish_dynamic_sections elf_i386_finish_dynamic_sections 2152#define elf_backend_finish_dynamic_symbol elf_i386_finish_dynamic_symbol 2153#define elf_backend_gc_mark_hook elf_i386_gc_mark_hook 2154#define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook 2155#define elf_backend_relocate_section elf_i386_relocate_section 2156#define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections |
| 2157#define elf_backend_fake_sections elf_i386_fake_sections |
|
| 2105 2106#include "elf32-target.h" | 2158 2159#include "elf32-target.h" |