elf32-i860.c
来自「基于4个mips核的noc设计」· C语言 代码 · 共 1,108 行 · 第 1/3 页
C
1,108 行
true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF1", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_SPGOTOFF1, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_SPGOTOFF1", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF2, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF2", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOGOTOFF3, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOGOTOFF3", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_LOPC, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_LOPC", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGHADJ, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGHADJ", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HAGOT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAGOT", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HAGOTOFF, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAGOTOFF", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HAPC, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HAPC", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGH, /* type */ 16, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGH", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ HOWTO (R_860_HIGOT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGOT", /* name */ false, /* partial_inplace */ 0, /* src_mask */ 0xffff, /* dst_mask */ true), /* pcrel_offset */ HOWTO (R_860_HIGOTOFF, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_860_HIGOTOFF", /* name */ true, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ false), /* pcrel_offset */};static unsigned char elf_code_to_howto_index[R_860_max + 1];static reloc_howto_type *lookup_howto (rtype) unsigned int rtype;{ static int initialized = 0; int i; int howto_tbl_size = (int) (sizeof (elf32_i860_howto_table) / sizeof (elf32_i860_howto_table[0])); if (! initialized) { initialized = 1; memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index)); for (i = 0; i < howto_tbl_size; i++) elf_code_to_howto_index[elf32_i860_howto_table[i].type] = i; } BFD_ASSERT (rtype <= R_860_max); i = elf_code_to_howto_index[rtype]; if (i >= howto_tbl_size) return 0; return elf32_i860_howto_table + i;}/* Given a BFD reloc, return the matching HOWTO structure. */static reloc_howto_type *elf32_i860_reloc_type_lookup (abfd, code) bfd * abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code;{ unsigned int rtype; switch (code) { case BFD_RELOC_NONE: rtype = R_860_NONE; break; case BFD_RELOC_32: rtype = R_860_32; break; case BFD_RELOC_860_COPY: rtype = R_860_COPY; break; case BFD_RELOC_860_GLOB_DAT: rtype = R_860_GLOB_DAT; break; case BFD_RELOC_860_JUMP_SLOT: rtype = R_860_JUMP_SLOT; break; case BFD_RELOC_860_RELATIVE: rtype = R_860_RELATIVE; break; case BFD_RELOC_860_PC26: rtype = R_860_PC26; break; case BFD_RELOC_860_PLT26: rtype = R_860_PLT26; break; case BFD_RELOC_860_PC16: rtype = R_860_PC16; break; case BFD_RELOC_860_LOW0: rtype = R_860_LOW0; break; case BFD_RELOC_860_SPLIT0: rtype = R_860_SPLIT0; break; case BFD_RELOC_860_LOW1: rtype = R_860_LOW1; break; case BFD_RELOC_860_SPLIT1: rtype = R_860_SPLIT1; break; case BFD_RELOC_860_LOW2: rtype = R_860_LOW2; break; case BFD_RELOC_860_SPLIT2: rtype = R_860_SPLIT2; break; case BFD_RELOC_860_LOW3: rtype = R_860_LOW3; break; case BFD_RELOC_860_LOGOT0: rtype = R_860_LOGOT0; break; case BFD_RELOC_860_SPGOT0: rtype = R_860_SPGOT0; break; case BFD_RELOC_860_LOGOT1: rtype = R_860_LOGOT1; break; case BFD_RELOC_860_SPGOT1: rtype = R_860_SPGOT1; break; case BFD_RELOC_860_LOGOTOFF0: rtype = R_860_LOGOTOFF0; break; case BFD_RELOC_860_SPGOTOFF0: rtype = R_860_SPGOTOFF0; break; case BFD_RELOC_860_LOGOTOFF1: rtype = R_860_LOGOTOFF1; break; case BFD_RELOC_860_SPGOTOFF1: rtype = R_860_SPGOTOFF1; break; case BFD_RELOC_860_LOGOTOFF2: rtype = R_860_LOGOTOFF2; break; case BFD_RELOC_860_LOGOTOFF3: rtype = R_860_LOGOTOFF3; break; case BFD_RELOC_860_LOPC: rtype = R_860_LOPC; break; case BFD_RELOC_860_HIGHADJ: rtype = R_860_HIGHADJ; break; case BFD_RELOC_860_HAGOT: rtype = R_860_HAGOT; break; case BFD_RELOC_860_HAGOTOFF: rtype = R_860_HAGOTOFF; break; case BFD_RELOC_860_HAPC: rtype = R_860_HAPC; break; case BFD_RELOC_860_HIGH: rtype = R_860_HIGH; break; case BFD_RELOC_860_HIGOT: rtype = R_860_HIGOT; break; case BFD_RELOC_860_HIGOTOFF: rtype = R_860_HIGOTOFF; break; default: rtype = 0; break; } return lookup_howto (rtype);}/* Given a ELF reloc, return the matching HOWTO structure. */static voidelf32_i860_info_to_howto_rela (abfd, bfd_reloc, elf_reloc) bfd *abfd ATTRIBUTE_UNUSED; arelent *bfd_reloc; Elf64_Internal_Rela *elf_reloc;{ bfd_reloc->howto = lookup_howto (ELF32_R_TYPE (elf_reloc->r_info));}/* Specialized relocation handler for R_860_SPLITn. These relocations involves a 16-bit field that is split into two contiguous parts. */static bfd_reloc_status_typeelf32_i860_relocate_splitn (input_bfd, rello, contents, value) bfd *input_bfd; Elf_Internal_Rela *rello; bfd_byte *contents; bfd_vma value;{ bfd_vma insn; reloc_howto_type *howto; howto = lookup_howto (ELF32_R_TYPE (rello->r_info)); insn = bfd_get_32 (input_bfd, contents + rello->r_offset); /* Relocate. */ value += rello->r_addend; /* Separate the fields and insert. */ value = (((value & 0xf8) << 5) | (value & 0x7ff)) & howto->dst_mask; insn = (insn & ~howto->dst_mask) | value; bfd_put_32 (input_bfd, insn, contents + rello->r_offset); return bfd_reloc_ok;}/* Specialized relocation handler for R_860_PC16. This relocation involves a 16-bit, PC-relative field that is split into two contiguous parts. */static bfd_reloc_status_typeelf32_i860_relocate_pc16 (input_bfd, input_section, rello, contents, value) bfd *input_bfd; asection *input_section; Elf_Internal_Rela *rello; bfd_byte *contents; bfd_vma value;{ bfd_vma insn; reloc_howto_type *howto; howto = lookup_howto (ELF32_R_TYPE (rello->r_info)); insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
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