| 1 | /* SPARC-specific support for 32-bit ELF |
| 2 | Copyright 1993 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #include "bfd.h" |
| 21 | #include "sysdep.h" |
| 22 | #include "libbfd.h" |
| 23 | #include "libelf.h" |
| 24 | |
| 25 | enum reloc_type |
| 26 | { |
| 27 | R_SPARC_NONE = 0, |
| 28 | R_SPARC_8, R_SPARC_16, R_SPARC_32, |
| 29 | R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, |
| 30 | R_SPARC_WDISP30, R_SPARC_WDISP22, |
| 31 | R_SPARC_HI22, R_SPARC_22, |
| 32 | R_SPARC_13, R_SPARC_LO10, |
| 33 | R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, |
| 34 | R_SPARC_PC10, R_SPARC_PC22, |
| 35 | R_SPARC_WPLT30, |
| 36 | R_SPARC_COPY, |
| 37 | R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, |
| 38 | R_SPARC_RELATIVE, |
| 39 | R_SPARC_UA32, |
| 40 | R_SPARC_max |
| 41 | }; |
| 42 | |
| 43 | #if 0 |
| 44 | static CONST char *CONST reloc_type_names[] = |
| 45 | { |
| 46 | "R_SPARC_NONE", |
| 47 | "R_SPARC_8", "R_SPARC_16", "R_SPARC_32", |
| 48 | "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32", |
| 49 | "R_SPARC_WDISP30", "R_SPARC_WDISP22", |
| 50 | "R_SPARC_HI22", "R_SPARC_22", |
| 51 | "R_SPARC_13", "R_SPARC_LO10", |
| 52 | "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22", |
| 53 | "R_SPARC_PC10", "R_SPARC_PC22", |
| 54 | "R_SPARC_WPLT30", |
| 55 | "R_SPARC_COPY", |
| 56 | "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT", |
| 57 | "R_SPARC_RELATIVE", |
| 58 | "R_SPARC_UA32", |
| 59 | }; |
| 60 | #endif |
| 61 | |
| 62 | static reloc_howto_type elf_sparc_howto_table[] = |
| 63 | { |
| 64 | HOWTO(R_SPARC_NONE, 0,0, 0,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_NONE", false,0,0x00000000,false), |
| 65 | HOWTO(R_SPARC_8, 0,0, 8,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_8", false,0,0x000000ff,false), |
| 66 | HOWTO(R_SPARC_16, 0,1,16,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_16", false,0,0x0000ffff,false), |
| 67 | HOWTO(R_SPARC_32, 0,2,32,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_32", false,0,0xffffffff,false), |
| 68 | HOWTO(R_SPARC_DISP8, 0,0, 8,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP8", false,0,0x000000ff,false), |
| 69 | HOWTO(R_SPARC_DISP16, 0,1,16,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP16", false,0,0x0000ffff,false), |
| 70 | HOWTO(R_SPARC_DISP32, 0,2,32,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_DISP32", false,0,0x00ffffff,false), |
| 71 | HOWTO(R_SPARC_WDISP30,2,2,30,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP30",false,0,0x3fffffff,false), |
| 72 | HOWTO(R_SPARC_WDISP22,2,2,22,true, 0,false, true, bfd_elf_generic_reloc,"R_SPARC_WDISP22",false,0,0x003fffff,false), |
| 73 | HOWTO(R_SPARC_HI22, 10,2,22,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_HI22", false,0,0x003fffff,false), |
| 74 | HOWTO(R_SPARC_22, 0,2,22,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_22", false,0,0x003fffff,false), |
| 75 | HOWTO(R_SPARC_13, 0,1,13,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_13", false,0,0x00001fff,false), |
| 76 | HOWTO(R_SPARC_LO10, 0,1,10,false,0,true, false, bfd_elf_generic_reloc,"R_SPARC_LO10", false,0,0x000003ff,false), |
| 77 | HOWTO(R_SPARC_GOT10, 0,1,10,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT10", false,0,0x000003ff,false), |
| 78 | HOWTO(R_SPARC_GOT13, 0,1,13,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT13", false,0,0x00001fff,false), |
| 79 | HOWTO(R_SPARC_GOT22, 10,2,22,false,0,false, true, bfd_elf_generic_reloc,"R_SPARC_GOT22", false,0,0x003fffff,false), |
| 80 | HOWTO(R_SPARC_PC10, 0,1,10,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_PC10", false,0,0x000003ff,false), |
| 81 | HOWTO(R_SPARC_PC22, 0,2,22,false,0,true, true, bfd_elf_generic_reloc,"R_SPARC_PC22", false,0,0x003fffff,false), |
| 82 | HOWTO(R_SPARC_WPLT30, 0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_WPLT30", false,0,0x00000000,false), |
| 83 | HOWTO(R_SPARC_COPY, 0,0,00,false,0,false,false, bfd_elf_generic_reloc,"R_SPARC_COPY", false,0,0x00000000,false), |
| 84 | HOWTO(R_SPARC_GLOB_DAT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_GLOB_DAT",false,0,0x00000000,false), |
| 85 | HOWTO(R_SPARC_JMP_SLOT,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_JMP_SLOT",false,0,0x00000000,false), |
| 86 | HOWTO(R_SPARC_RELATIVE,0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_RELATIVE",false,0,0x00000000,false), |
| 87 | HOWTO(R_SPARC_UA32, 0,0,00,false,0,false,false,bfd_elf_generic_reloc,"R_SPARC_UA32", false,0,0x00000000,false), |
| 88 | }; |
| 89 | |
| 90 | struct elf_reloc_map { |
| 91 | unsigned char bfd_reloc_val; |
| 92 | unsigned char elf_reloc_val; |
| 93 | }; |
| 94 | |
| 95 | static CONST struct elf_reloc_map sparc_reloc_map[] = |
| 96 | { |
| 97 | { BFD_RELOC_NONE, R_SPARC_NONE, }, |
| 98 | { BFD_RELOC_16, R_SPARC_16, }, |
| 99 | { BFD_RELOC_8, R_SPARC_8 }, |
| 100 | { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, |
| 101 | { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ |
| 102 | { BFD_RELOC_32, R_SPARC_32 }, |
| 103 | { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, |
| 104 | { BFD_RELOC_HI22, R_SPARC_HI22 }, |
| 105 | { BFD_RELOC_LO10, R_SPARC_LO10, }, |
| 106 | { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, |
| 107 | { BFD_RELOC_SPARC22, R_SPARC_22 }, |
| 108 | { BFD_RELOC_SPARC13, R_SPARC_13 }, |
| 109 | { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, |
| 110 | { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, |
| 111 | { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, |
| 112 | { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, |
| 113 | { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, |
| 114 | { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, |
| 115 | { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, |
| 116 | { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, |
| 117 | { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, |
| 118 | { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, |
| 119 | { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, |
| 120 | /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ |
| 121 | }; |
| 122 | |
| 123 | static CONST struct reloc_howto_struct * |
| 124 | DEFUN (bfd_elf32_bfd_reloc_type_lookup, (abfd, code), |
| 125 | bfd *abfd AND |
| 126 | bfd_reloc_code_real_type code) |
| 127 | { |
| 128 | int i; |
| 129 | for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map); i++) |
| 130 | { |
| 131 | if (sparc_reloc_map[i].bfd_reloc_val == code) |
| 132 | return &elf_sparc_howto_table[(int) sparc_reloc_map[i].elf_reloc_val]; |
| 133 | } |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static void |
| 138 | DEFUN (elf_info_to_howto, (abfd, cache_ptr, dst), |
| 139 | bfd *abfd AND |
| 140 | arelent *cache_ptr AND |
| 141 | Elf32_Internal_Rela *dst) |
| 142 | { |
| 143 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_SPARC_max); |
| 144 | cache_ptr->howto = &elf_sparc_howto_table[ELF32_R_TYPE(dst->r_info)]; |
| 145 | } |
| 146 | |
| 147 | #define TARGET_BIG_SYM bfd_elf32_sparc_vec |
| 148 | #define TARGET_BIG_NAME "elf32-sparc" |
| 149 | #define ELF_ARCH bfd_arch_sparc |
| 150 | |
| 151 | #include "elf32-target.h" |