1/* BFD back-end for Sparc COFF files. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, 3 2002, 2003, 2005 Free Software Foundation, Inc. 4 Written by Cygnus Support. 5 6This file is part of BFD, the Binary File Descriptor library. 7 8This program is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 2 of the License, or 11(at your option) any later version. 12 13This program is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with this program; if not, write to the Free Software 20Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 21 22#include "bfd.h" 23#include "sysdep.h" 24#include "libbfd.h" 25#include "coff/sparc.h" 26#include "coff/internal.h" 27#include "libcoff.h" 28 29#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) 30 31#define BADMAG(x) ((x).f_magic != SPARCMAGIC && (x).f_magic != LYNXCOFFMAGIC) 32 33/* The page size is a guess based on ELF. */ 34#define COFF_PAGE_SIZE 0x10000 35 36 37static reloc_howto_type *coff_sparc_reloc_type_lookup 38 PARAMS ((bfd *, bfd_reloc_code_real_type)); 39static void rtype2howto PARAMS ((arelent *, struct internal_reloc *)); 40 41enum reloc_type 42 { 43 R_SPARC_NONE = 0, 44 R_SPARC_8, R_SPARC_16, R_SPARC_32, 45 R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, 46 R_SPARC_WDISP30, R_SPARC_WDISP22, 47 R_SPARC_HI22, R_SPARC_22, 48 R_SPARC_13, R_SPARC_LO10, 49 R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, 50 R_SPARC_PC10, R_SPARC_PC22, 51 R_SPARC_WPLT30, 52 R_SPARC_COPY, 53 R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, 54 R_SPARC_RELATIVE, 55 R_SPARC_UA32, 56 R_SPARC_max 57 }; 58 59/* This is stolen pretty directly from elf.c. */ 60static bfd_reloc_status_type 61bfd_coff_generic_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, 62 asection *, bfd *, char **)); 63 64static bfd_reloc_status_type 65bfd_coff_generic_reloc (abfd, reloc_entry, symbol, data, input_section, 66 output_bfd, error_message) 67 bfd *abfd ATTRIBUTE_UNUSED; 68 arelent *reloc_entry; 69 asymbol *symbol; 70 PTR data ATTRIBUTE_UNUSED; 71 asection *input_section; 72 bfd *output_bfd; 73 char **error_message ATTRIBUTE_UNUSED; 74{ 75 if (output_bfd != (bfd *) NULL 76 && (symbol->flags & BSF_SECTION_SYM) == 0) 77 { 78 reloc_entry->address += input_section->output_offset; 79 return bfd_reloc_ok; 80 } 81 82 return bfd_reloc_continue; 83} 84 85static reloc_howto_type coff_sparc_howto_table[] = 86{ 87 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_NONE", FALSE,0,0x00000000,TRUE), 88 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_8", FALSE,0,0x000000ff,TRUE), 89 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_16", FALSE,0,0x0000ffff,TRUE), 90 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_32", FALSE,0,0xffffffff,TRUE), 91 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), 92 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), 93 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_DISP32", FALSE,0,0x00ffffff,TRUE), 94 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), 95 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_coff_generic_reloc,"R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), 96 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), 97 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_22", FALSE,0,0x003fffff,TRUE), 98 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_13", FALSE,0,0x00001fff,TRUE), 99 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), 100 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), 101 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), 102 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), 103 HOWTO(R_SPARC_PC10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), 104 HOWTO(R_SPARC_PC22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_coff_generic_reloc,"R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), 105 HOWTO(R_SPARC_WPLT30, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_WPLT30", FALSE,0,0x00000000,TRUE), 106 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_COPY", FALSE,0,0x00000000,TRUE), 107 HOWTO(R_SPARC_GLOB_DAT,0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE), 108 HOWTO(R_SPARC_JMP_SLOT,0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE), 109 HOWTO(R_SPARC_RELATIVE,0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), 110 HOWTO(R_SPARC_UA32, 0,0,00,FALSE,0,complain_overflow_dont, bfd_coff_generic_reloc,"R_SPARC_UA32", FALSE,0,0x00000000,TRUE), 111}; 112 113struct coff_reloc_map { 114 bfd_reloc_code_real_type bfd_reloc_val; 115 unsigned char coff_reloc_val; 116}; 117 118static const struct coff_reloc_map sparc_reloc_map[] = 119{ 120 { BFD_RELOC_NONE, R_SPARC_NONE, }, 121 { BFD_RELOC_16, R_SPARC_16, }, 122 { BFD_RELOC_8, R_SPARC_8 }, 123 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 }, 124 { BFD_RELOC_CTOR, R_SPARC_32 }, /* @@ Assumes 32 bits. */ 125 { BFD_RELOC_32, R_SPARC_32 }, 126 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 }, 127 { BFD_RELOC_HI22, R_SPARC_HI22 }, 128 { BFD_RELOC_LO10, R_SPARC_LO10, }, 129 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 }, 130 { BFD_RELOC_SPARC22, R_SPARC_22 }, 131 { BFD_RELOC_SPARC13, R_SPARC_13 }, 132 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 }, 133 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 }, 134 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 }, 135 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 }, 136 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 }, 137 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 }, 138 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY }, 139 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT }, 140 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT }, 141 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE }, 142 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 }, 143 /* { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 }, not used?? */ 144}; 145 146static reloc_howto_type * 147coff_sparc_reloc_type_lookup (abfd, code) 148 bfd *abfd ATTRIBUTE_UNUSED; 149 bfd_reloc_code_real_type code; 150{ 151 unsigned int i; 152 for (i = 0; i < sizeof (sparc_reloc_map) / sizeof (struct coff_reloc_map); i++) 153 { 154 if (sparc_reloc_map[i].bfd_reloc_val == code) 155 return &coff_sparc_howto_table[(int) sparc_reloc_map[i].coff_reloc_val]; 156 } 157 return 0; 158} 159#define coff_bfd_reloc_type_lookup coff_sparc_reloc_type_lookup 160 161static void 162rtype2howto (cache_ptr, dst) 163 arelent *cache_ptr; 164 struct internal_reloc *dst; 165{ 166 BFD_ASSERT (dst->r_type < (unsigned int) R_SPARC_max); 167 cache_ptr->howto = &coff_sparc_howto_table[dst->r_type]; 168} 169 170#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) 171 172#define SWAP_IN_RELOC_OFFSET H_GET_32 173#define SWAP_OUT_RELOC_OFFSET H_PUT_32 174#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ 175 cache_ptr->addend = reloc.r_offset; 176 177/* Clear the r_spare field in relocs. */ 178#define SWAP_OUT_RELOC_EXTRA(abfd,src,dst) \ 179 do { \ 180 dst->r_spare[0] = 0; \ 181 dst->r_spare[1] = 0; \ 182 } while (0) 183 184#define __A_MAGIC_SET__ 185 186/* Enable Sparc-specific hacks in coffcode.h. */ 187 188#define COFF_SPARC 189 190#include "coffcode.h" 191 192#ifndef TARGET_SYM 193#define TARGET_SYM sparccoff_vec 194#endif 195 196#ifndef TARGET_NAME 197#define TARGET_NAME "coff-sparc" 198#endif 199 200CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL, COFF_SWAP_TABLE) 201