diff options
Diffstat (limited to 'contrib/gdb/bfd/coff-arm.c')
| -rw-r--r-- | contrib/gdb/bfd/coff-arm.c | 537 |
1 files changed, 0 insertions, 537 deletions
diff --git a/contrib/gdb/bfd/coff-arm.c b/contrib/gdb/bfd/coff-arm.c deleted file mode 100644 index bb16b04..0000000 --- a/contrib/gdb/bfd/coff-arm.c +++ /dev/null @@ -1,537 +0,0 @@ -/* BFD back-end for ARM COFF files. - Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - Written by Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "obstack.h" - -#include "coff/arm.h" - -#include "coff/internal.h" - -#ifdef COFF_WITH_PE -#include "coff/pe.h" -#endif - -#include "libcoff.h" - -static bfd_reloc_status_type -aoutarm_fix_pcrel_26_done PARAMS ((bfd *, arelent *, asymbol *, PTR, - asection *, bfd *, char **)); - -static bfd_reloc_status_type -aoutarm_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR, - asection *, bfd *, char **)); - - -static bfd_reloc_status_type coff_arm_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); - - -/* Used by the assembler. */ -static bfd_reloc_status_type -coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - symvalue diff; - if (output_bfd == (bfd *) NULL) - return bfd_reloc_continue; - - diff = reloc_entry->addend; - -#define DOIT(x) \ - x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask)) - - if (diff != 0) - { - reloc_howto_type *howto = reloc_entry->howto; - unsigned char *addr = (unsigned char *) data + reloc_entry->address; - - switch (howto->size) - { - case 0: - { - char x = bfd_get_8 (abfd, addr); - DOIT (x); - bfd_put_8 (abfd, x, addr); - } - break; - - case 1: - { - short x = bfd_get_16 (abfd, addr); - DOIT (x); - bfd_put_16 (abfd, x, addr); - } - break; - - case 2: - { - long x = bfd_get_32 (abfd, addr); - DOIT (x); - bfd_put_32 (abfd, x, addr); - } - break; - - default: - abort (); - } - } - - /* Now let bfd_perform_relocation finish everything up. */ - return bfd_reloc_continue; -} - -#ifndef PCRELOFFSET -#define PCRELOFFSET true -#endif - -static reloc_howto_type aoutarm_std_reloc_howto[] = -{ - /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ - HOWTO(0, /* type */ - 0, /* rs */ - 0, /* size */ - 8, /* bsz */ - false, /* pcrel */ - 0, /* bitpos */ - complain_overflow_bitfield, /* ovf */ - coff_arm_reloc, /* sf */ - "8", /*name */ - true, /* partial */ - 0x000000ff, /*read mask */ - 0x000000ff, /* setmask */ - PCRELOFFSET /* pcdone */), - HOWTO(1, - 0, - 1, - 16, - false, - 0, - complain_overflow_bitfield, - coff_arm_reloc, - "16", - true, - 0x0000ffff, - 0x0000ffff, - PCRELOFFSET), - HOWTO( 2, - 0, - 2, - 32, - false, - 0, - complain_overflow_bitfield, - coff_arm_reloc, - "32", - true, - 0xffffffff, - 0xffffffff, - PCRELOFFSET), - HOWTO( 3, - 2, - 2, - 26, - true, - 0, - complain_overflow_signed, - aoutarm_fix_pcrel_26 , - "ARM26", - false, - 0x00ffffff, - 0x00ffffff, - PCRELOFFSET), - HOWTO( 4, - 0, - 0, - 8, - true, - 0, - complain_overflow_signed, - coff_arm_reloc, - "DISP8", - true, - 0x000000ff, - 0x000000ff, - true), - HOWTO( 5, - 0, - 1, - 16, - true, - 0, - complain_overflow_signed, - coff_arm_reloc, - "DISP16", - true, - 0x0000ffff, - 0x0000ffff, - true), - HOWTO( 6, - 0, - 2, - 32, - true, - 0, - complain_overflow_signed, - coff_arm_reloc, - "DISP32", - true, - 0xffffffff, - 0xffffffff, - true), - HOWTO( 7, - 2, - 2, - 26, - false, - 0, - complain_overflow_signed, - aoutarm_fix_pcrel_26_done, - "ARM26D", - true, - 0x00ffffff, - 0x00ffffff, - false), - {-1}, - HOWTO( 9, - 0, - -1, - 16, - false, - 0, - complain_overflow_bitfield, - coff_arm_reloc, - "NEG16", - true, - 0x0000ffff, - 0x0000ffff, - false), - HOWTO( 10, - 0, - -2, - 32, - false, - 0, - complain_overflow_bitfield, - coff_arm_reloc, - "NEG32", - true, - 0xffffffff, - 0xffffffff, - false), - HOWTO( 11, - 0, - 2, - 32, - false, - 0, - complain_overflow_bitfield, - coff_arm_reloc, - "rva32", - true, - 0xffffffff, - 0xffffffff, - PCRELOFFSET), -}; -#ifdef COFF_WITH_PE -/* Return true if this relocation should - appear in the output .reloc section. */ - -static boolean in_reloc_p (abfd, howto) - bfd * abfd; - reloc_howto_type *howto; -{ - return !howto->pc_relative && howto->type != 11; -} -#endif - - -#define RTYPE2HOWTO(cache_ptr, dst) \ - (cache_ptr)->howto = aoutarm_std_reloc_howto + (dst)->r_type; - -#define coff_rtype_to_howto coff_arm_rtype_to_howto - -static reloc_howto_type * -coff_arm_rtype_to_howto (abfd, sec, rel, h, sym, addendp) - bfd *abfd; - asection *sec; - struct internal_reloc *rel; - struct coff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma *addendp; -{ - reloc_howto_type *howto; - - howto = aoutarm_std_reloc_howto + rel->r_type; - - if (rel->r_type == 11) - { - *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; - } - return howto; - -} -/* Used by the assembler. */ - -static bfd_reloc_status_type -aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - /* This is dead simple at present. */ - return bfd_reloc_ok; -} - -/* Used by the assembler. */ - -static bfd_reloc_status_type -aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - bfd_vma relocation; - bfd_size_type addr = reloc_entry->address; - long target = bfd_get_32 (abfd, (bfd_byte *) data + addr); - bfd_reloc_status_type flag = bfd_reloc_ok; - - /* If this is an undefined symbol, return error */ - if (symbol->section == &bfd_und_section - && (symbol->flags & BSF_WEAK) == 0) - return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined; - - /* If the sections are different, and we are doing a partial relocation, - just ignore it for now. */ - if (symbol->section->name != input_section->name - && output_bfd != (bfd *)NULL) - return bfd_reloc_continue; - - relocation = (target & 0x00ffffff) << 2; - relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */ - relocation += symbol->value; - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - relocation -= input_section->output_section->vma; - relocation -= input_section->output_offset; - relocation -= addr; - if (relocation & 3) - return bfd_reloc_overflow; - - /* Check for overflow */ - if (relocation & 0x02000000) - { - if ((relocation & ~0x03ffffff) != ~0x03ffffff) - flag = bfd_reloc_overflow; - } - else if (relocation & ~0x03ffffff) - flag = bfd_reloc_overflow; - - target &= ~0x00ffffff; - target |= (relocation >> 2) & 0x00ffffff; - bfd_put_32 (abfd, target, (bfd_byte *) data + addr); - - /* Now the ARM magic... Change the reloc type so that it is marked as done. - Strictly this is only necessary if we are doing a partial relocation. */ - reloc_entry->howto = &aoutarm_std_reloc_howto[7]; - - return flag; -} - - -static CONST struct reloc_howto_struct * -arm_reloc_type_lookup(abfd,code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ -#define ASTD(i,j) case i: return &aoutarm_std_reloc_howto[j] - if (code == BFD_RELOC_CTOR) - switch (bfd_get_arch_info (abfd)->bits_per_address) - { - case 32: - code = BFD_RELOC_32; - break; - default: return (CONST struct reloc_howto_struct *) 0; - } - - switch (code) - { - ASTD (BFD_RELOC_16, 1); - ASTD (BFD_RELOC_32, 2); - ASTD (BFD_RELOC_ARM_PCREL_BRANCH, 3); - ASTD (BFD_RELOC_8_PCREL, 4); - ASTD (BFD_RELOC_16_PCREL, 5); - ASTD (BFD_RELOC_32_PCREL, 6); - ASTD (BFD_RELOC_RVA, 11); - default: return (CONST struct reloc_howto_struct *) 0; - } -} - - -#define coff_bfd_reloc_type_lookup arm_reloc_type_lookup - -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) -#define COFF_PAGE_SIZE 0x1000 -/* Turn a howto into a reloc nunmber */ - -#define SELECT_RELOC(x,howto) { x.r_type = howto->type; } -#define BADMAG(x) ARMBADMAG(x) -#define ARM 1 /* Customize coffcode.h */ - - -/* We use the special COFF backend linker. */ -#define coff_relocate_section _bfd_coff_generic_relocate_section - - -#include "coffcode.h" - -const bfd_target -#ifdef TARGET_LITTLE_SYM -TARGET_LITTLE_SYM = -#else -armcoff_little_vec = -#endif -{ -#ifdef TARGET_LITTLE_NAME - TARGET_LITTLE_NAME, -#else - "coff-arm-little", -#endif - bfd_target_coff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ -#ifdef TARGET_UNDERSCORE - TARGET_UNDERSCORE, /* leading underscore */ -#else - 0, /* leading underscore */ -#endif - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - -/* Note that we allow an object file to be treated as a core file as well. */ - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, coff_object_p}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - COFF_SWAP_TABLE, -}; - -const bfd_target -#ifdef TARGET_BIG_SYM -TARGET_BIG_SYM = -#else -armcoff_big_vec = -#endif -{ -#ifdef TARGET_BIG_NAME - TARGET_BIG_NAME, -#else - "coff-arm-big", -#endif - bfd_target_coff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ -#ifdef TARGET_UNDERSCORE - TARGET_UNDERSCORE, /* leading underscore */ -#else - 0, /* leading underscore */ -#endif - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - -/* Note that we allow an object file to be treated as a core file as well. */ - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, coff_object_p}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - COFF_SWAP_TABLE, -}; |
