diff options
Diffstat (limited to 'bfd/elf32-mcore.c')
| -rw-r--r-- | bfd/elf32-mcore.c | 747 |
1 files changed, 747 insertions, 0 deletions
diff --git a/bfd/elf32-mcore.c b/bfd/elf32-mcore.c new file mode 100644 index 00000000000..ef3a39f1957 --- /dev/null +++ b/bfd/elf32-mcore.c @@ -0,0 +1,747 @@ +/* Motorolla MCore specific support for 32-bit ELF + Copyright 1994, 1995, 1999 Free Software Foundation, Inc. + +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. */ + +/* This file is based on a preliminary RCE ELF ABI. The + information may not match the final RCE ELF ABI. */ + +#include "bfd.h" +#include "sysdep.h" +#include "bfdlink.h" +#include "libbfd.h" +#include "elf-bfd.h" +#include "elf/mcore.h" +#include <assert.h> + +#define USE_RELA /* Only USE_REL is actually significant, but this is + here are a reminder... */ + +static void mcore_elf_howto_init + PARAMS ((void)); +static reloc_howto_type * mcore_elf_reloc_type_lookup + PARAMS ((bfd *, bfd_reloc_code_real_type)); +static void mcore_elf_info_to_howto + PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); +static boolean mcore_elf_set_private_flags + PARAMS ((bfd *, flagword)); +static boolean mcore_elf_copy_private_bfd_data + PARAMS ((bfd *, bfd *)); +static boolean mcore_elf_merge_private_bfd_data + PARAMS ((bfd *, bfd *)); +static bfd_reloc_status_type mcore_elf_unsupported_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static boolean mcore_elf_relocate_section + PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, + Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); + +static reloc_howto_type * mcore_elf_howto_table [(int) R_MCORE_max]; + +static reloc_howto_type mcore_elf_howto_raw[] = +{ + /* This reloc does nothing. */ + HOWTO (R_MCORE_NONE, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + mcore_elf_unsupported_reloc, /* special_function */ + "R_MCORE_NONE", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + true), /* pcrel_offset */ + + /* A standard 32 bit relocation. */ + HOWTO (R_MCORE_ADDR32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "ADDR32", /* name *//* For compatability with coff/pe port. */ + false, /* partial_inplace */ + 0x0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions. + Should not appear in object files. */ + HOWTO (R_MCORE_PCRELIMM8BY4, /* type */ + 2, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + mcore_elf_unsupported_reloc, /* special_function */ + "R_MCORE_PCRELIMM8BY4",/* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + true), /* pcrel_offset */ + + /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit + Span 2k instructions == 4k bytes. + Only useful pieces at the relocated address are the opcode (5 bits) */ + HOWTO (R_MCORE_PCRELIMM11BY2,/* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 11, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MCORE_PCRELIMM11BY2",/* name */ + false, /* partial_inplace */ + 0x0, /* src_mask */ + 0x7ff, /* dst_mask */ + true), /* pcrel_offset */ + + /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */ + HOWTO (R_MCORE_PCRELIMM4BY2, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 4, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + mcore_elf_unsupported_reloc,/* special_function */ + "R_MCORE_PCRELIMM4BY2",/* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + true), /* pcrel_offset */ + + /* 32-bit pc-relative. Eventually this will help support PIC code. */ + HOWTO (R_MCORE_PCREL32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MCORE_PCREL32", /* name */ + false, /* partial_inplace */ + 0x0, /* src_mask */ + 0xffffffff, /* dst_mask */ + true), /* pcrel_offset */ + + /* Like PCRELIMM11BY2, this relocation indicates that there is a + 'jsri' at the specified address. There is a separate relocation + entry for the literal pool entry that it references, but we + might be able to change the jsri to a bsr if the target turns out + to be close enough [even though we won't reclaim the literal pool + entry, we'll get some runtime efficiency back]. Note that this + is a relocation that we are allowed to safely ignore. */ + HOWTO (R_MCORE_PCRELJSR_IMM11BY2,/* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 11, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MCORE_PCRELJSR_IMM11BY2", /* name */ + false, /* partial_inplace */ + 0x0, /* src_mask */ + 0x7ff, /* dst_mask */ + true), /* pcrel_offset */ + + /* GNU extension to record C++ vtable hierarchy */ + HOWTO (R_MCORE_GNU_VTINHERIT, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_MCORE_GNU_VTINHERIT", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ + + /* GNU extension to record C++ vtable member usage */ + HOWTO (R_MCORE_GNU_VTENTRY, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont,/* complain_on_overflow */ + _bfd_elf_rel_vtable_reloc_fn, /* special_function */ + "R_MCORE_GNU_VTENTRY", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ +}; + +#ifndef NUM_ELEM +#define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0]) +#endif + +/* Initialize the mcore_elf_howto_table, so that linear accesses can be done. */ +static void +mcore_elf_howto_init () +{ + unsigned int i; + + for (i = NUM_ELEM (mcore_elf_howto_raw); i--;) + { + unsigned int type; + + type = mcore_elf_howto_raw[i].type; + + BFD_ASSERT (type < NUM_ELEM (mcore_elf_howto_table)); + + mcore_elf_howto_table [type] = & mcore_elf_howto_raw [i]; + } +} + + +static reloc_howto_type * +mcore_elf_reloc_type_lookup (abfd, code) + bfd * abfd; + bfd_reloc_code_real_type code; +{ + enum elf_mcore_reloc_type mcore_reloc = R_MCORE_NONE; + + switch (code) + { + case BFD_RELOC_NONE: mcore_reloc = R_MCORE_NONE; break; + case BFD_RELOC_32: mcore_reloc = R_MCORE_ADDR32; break; + case BFD_RELOC_MCORE_PCREL_IMM8BY4: mcore_reloc = R_MCORE_PCRELIMM8BY4; break; + case BFD_RELOC_MCORE_PCREL_IMM11BY2: mcore_reloc = R_MCORE_PCRELIMM11BY2; break; + case BFD_RELOC_MCORE_PCREL_IMM4BY2: mcore_reloc = R_MCORE_PCRELIMM4BY2; break; + case BFD_RELOC_32_PCREL: mcore_reloc = R_MCORE_PCREL32; break; + case BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2: mcore_reloc = R_MCORE_PCRELJSR_IMM11BY2; break; + case BFD_RELOC_VTABLE_INHERIT: mcore_reloc = R_MCORE_GNU_VTINHERIT; break; + case BFD_RELOC_VTABLE_ENTRY: mcore_reloc = R_MCORE_GNU_VTENTRY; break; + default: + return (reloc_howto_type *)NULL; + } + + if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */ + mcore_elf_howto_init (); + + return mcore_elf_howto_table [(int) mcore_reloc]; +}; + +/* Set the howto pointer for a RCE ELF reloc. */ +static void +mcore_elf_info_to_howto (abfd, cache_ptr, dst) + bfd * abfd; + arelent * cache_ptr; + Elf32_Internal_Rela * dst; +{ + if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */ + mcore_elf_howto_init (); + + BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_MCORE_max); + + cache_ptr->howto = mcore_elf_howto_table [ELF32_R_TYPE (dst->r_info)]; +} + +/* Function to set whether a module needs the -mrelocatable bit set. */ +static boolean +mcore_elf_set_private_flags (abfd, flags) + bfd * abfd; + flagword flags; +{ + BFD_ASSERT (! elf_flags_init (abfd) + || elf_elfheader (abfd)->e_flags == flags); + + elf_elfheader (abfd)->e_flags = flags; + elf_flags_init (abfd) = true; + return true; +} + +/* Copy backend specific data from one object module to another. */ +static boolean +mcore_elf_copy_private_bfd_data (ibfd, obfd) + bfd * ibfd; + bfd * obfd; +{ + if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return true; + + BFD_ASSERT (! elf_flags_init (obfd) + || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); + + elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; + elf_flags_init (obfd) = true; + return true; +} + +/* Merge backend specific data from an object file to the output + object file when linking. */ +static boolean +mcore_elf_merge_private_bfd_data (ibfd, obfd) + bfd * ibfd; + bfd * obfd; +{ + flagword old_flags; + flagword new_flags; + boolean error; + + /* Check if we have the same endianess */ + if ( ibfd->xvec->byteorder != obfd->xvec->byteorder + && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) + { + (*_bfd_error_handler) + (_("%s: compiled for a %s endian system and target is %s endian.\n"), + bfd_get_filename (ibfd), + bfd_big_endian (ibfd) ? "big" : "little", + bfd_big_endian (obfd) ? "big" : "little"); + + bfd_set_error (bfd_error_wrong_format); + return false; + } + + if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour + || bfd_get_flavour (obfd) != bfd_target_elf_flavour) + return true; + + new_flags = elf_elfheader (ibfd)->e_flags; + old_flags = elf_elfheader (obfd)->e_flags; + + if (! elf_flags_init (obfd)) /* First call, no flags set */ + { + elf_flags_init (obfd) = true; + elf_elfheader (obfd)->e_flags = new_flags; + } + else if (new_flags == old_flags) /* Compatible flags are ok */ + ; + + return true; +} + + +/* Don't pretend we can deal with unsupported relocs. */ + +/*ARGSUSED*/ +static bfd_reloc_status_type +mcore_elf_unsupported_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; +{ + BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0); + + _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"), + bfd_get_filename (abfd), + reloc_entry->howto->name, + reloc_entry->howto->type); + + return bfd_reloc_notsupported; +} + + +/* The RELOCATE_SECTION function is called by the ELF backend linker + to handle the relocations for a section. + + The relocs are always passed as Rela structures; if the section + actually uses Rel structures, the r_addend field will always be + zero. + + This function is responsible for adjust the section contents as + necessary, and (if using Rela relocs and generating a + relocateable output file) adjusting the reloc addend as + necessary. + + This function does not have to worry about setting the reloc + address or the reloc symbol index. + + LOCAL_SYMS is a pointer to the swapped in local symbols. + + LOCAL_SECTIONS is an array giving the section in the input file + corresponding to the st_shndx field of each local symbol. + + The global hash table entry for the global symbols can be found + via elf_sym_hashes (input_bfd). + + When generating relocateable output, this function must handle + STB_LOCAL/STT_SECTION symbols specially. The output symbol is + going to be the section symbol corresponding to the output + section, which means that the addend must be adjusted + accordingly. */ + +static boolean +mcore_elf_relocate_section (output_bfd, info, input_bfd, input_section, + contents, relocs, local_syms, local_sections) + bfd * output_bfd; + struct bfd_link_info * info; + bfd * input_bfd; + asection * input_section; + bfd_byte * contents; + Elf_Internal_Rela * relocs; + Elf_Internal_Sym * local_syms; + asection ** local_sections; +{ + Elf_Internal_Shdr * symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; + struct elf_link_hash_entry ** sym_hashes = elf_sym_hashes (input_bfd); + Elf_Internal_Rela * rel = relocs; + Elf_Internal_Rela * relend = relocs + input_section->reloc_count; + boolean ret = true; + long insn; + +#ifdef DEBUG + fprintf (stderr, + "mcore_elf_relocate_section called for %s section %s, %ld relocations%s\n", + bfd_get_filename (input_bfd), + bfd_section_name(input_bfd, input_section), + (long) input_section->reloc_count, + (info->relocateable) ? " (relocatable)" : ""); +#endif + + if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */ + mcore_elf_howto_init (); + + for (; rel < relend; rel++) + { + enum elf_mcore_reloc_type r_type = (enum elf_mcore_reloc_type) ELF32_R_TYPE (rel->r_info); + bfd_vma offset = rel->r_offset; + bfd_vma addend = rel->r_addend; + bfd_reloc_status_type r = bfd_reloc_other; + asection * sec = (asection *) 0; + reloc_howto_type * howto; + bfd_vma relocation; + Elf_Internal_Sym * sym = (Elf_Internal_Sym *) 0; + unsigned long r_symndx; + struct elf_link_hash_entry * h = (struct elf_link_hash_entry *) 0; + unsigned short oldinst; + + /* Unknown relocation handling */ + if ((unsigned) r_type >= (unsigned) R_MCORE_max + || ! mcore_elf_howto_table [(int)r_type]) + { + _bfd_error_handler (_("%s: Unknown relocation type %d\n"), + bfd_get_filename (input_bfd), + (int) r_type); + + bfd_set_error (bfd_error_bad_value); + ret = false; + continue; + } + + howto = mcore_elf_howto_table [(int) r_type]; + r_symndx = ELF32_R_SYM (rel->r_info); + + if (info->relocateable) + { + /* This is a relocateable link. We don't have to change + anything, unless the reloc is against a section symbol, + in which case we have to adjust according to where the + section symbol winds up in the output section. */ + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + + if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION) + { + sec = local_sections[r_symndx]; + addend = rel->r_addend += sec->output_offset + sym->st_value; + } + } + +#ifdef DEBUG + fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n", + howto->name, (int) r_type, r_symndx, (long) offset, (long) addend); +#endif + continue; + } + + /* This is a final link. */ + + /* Complain about known relocation that are not yet supported */ + if (howto->special_function == mcore_elf_unsupported_reloc) + { + _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"), + bfd_get_filename (input_bfd), + howto->name, + (int)r_type); + + bfd_set_error (bfd_error_bad_value); + ret = false; + continue; + } + + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections [r_symndx]; + relocation = (sec->output_section->vma + + sec->output_offset + + sym->st_value); + } + else + { + h = sym_hashes [r_symndx - symtab_hdr->sh_info]; + if ( h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + sec = h->root.u.def.section; + relocation = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + else if (h->root.type == bfd_link_hash_undefweak) + relocation = 0; + else if (info->shared) + relocation = 0; + else + { + if (! ((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, + input_section, rel->r_offset))) + return false; + + ret = false; + continue; + } + } + + switch (r_type) + { + default: + case R_MCORE_PCRELIMM8BY4: + case R_MCORE_PCRELIMM11BY2: + case R_MCORE_PCRELIMM4BY2: + break; + + case R_MCORE_PCRELJSR_IMM11BY2: + oldinst = bfd_get_16 (input_bfd, contents + offset); +#define MCORE_INST_BSR 0xF800 + bfd_put_16 (input_bfd, MCORE_INST_BSR, contents + offset); + break; + } + + +#ifdef DEBUG + fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n", + howto->name, r_type, r_symndx, (long) offset, (long) addend); +#endif + + r = _bfd_final_link_relocate + (howto, input_bfd, input_section, contents, offset, relocation, addend); + + if (r != bfd_reloc_ok && r_type == R_MCORE_PCRELJSR_IMM11BY2) + { + /* Wasn't ok, back it out and give up. */ + bfd_put_16 (input_bfd, oldinst, contents + offset); + r = bfd_reloc_ok; + } + + if (r != bfd_reloc_ok) + { + ret = false; + + switch (r) + { + default: + break; + + case bfd_reloc_overflow: + { + const char * name; + + if (h != NULL) + name = h->root.root.string; + else + { + name = bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name); + + if (name == NULL) + break; + + if (* name == '\0') + name = bfd_section_name (input_bfd, sec); + } + + (*info->callbacks->reloc_overflow) + (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section, + offset); + } + break; + } + } + } + +#ifdef DEBUG + fprintf (stderr, "\n"); +#endif + + return ret; +} + +/* Return the section that should be marked against GC for a given + relocation. */ + +static asection * +mcore_elf_gc_mark_hook (abfd, info, rel, h, sym) + bfd * abfd; + struct bfd_link_info * info; + Elf_Internal_Rela * rel; + struct elf_link_hash_entry * h; + Elf_Internal_Sym * sym; +{ + if (h != NULL) + { + switch (ELF32_R_TYPE (rel->r_info)) + { + case R_MCORE_GNU_VTINHERIT: + case R_MCORE_GNU_VTENTRY: + break; + + default: + switch (h->root.type) + { + case bfd_link_hash_defined: + case bfd_link_hash_defweak: + return h->root.u.def.section; + + case bfd_link_hash_common: + return h->root.u.c.p->section; + } + } + } + else + { + if (!(elf_bad_symtab (abfd) + && ELF_ST_BIND (sym->st_info) != STB_LOCAL) + && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) + && sym->st_shndx != SHN_COMMON)) + { + return bfd_section_from_elf_index (abfd, sym->st_shndx); + } + } + + return NULL; +} + +/* Update the got entry reference counts for the section being removed. */ + +static boolean +mcore_elf_gc_sweep_hook (abfd, info, sec, relocs) + bfd * abfd; + struct bfd_link_info * info; + asection * sec; + const Elf_Internal_Rela * relocs; +{ + return true; +} + +/* Look through the relocs for a section during the first phase. + Since we don't do .gots or .plts, we just need to consider the + virtual table relocs for gc. */ + +static boolean +mcore_elf_check_relocs (abfd, info, sec, relocs) + bfd * abfd; + struct bfd_link_info * info; + asection * sec; + const Elf_Internal_Rela * relocs; +{ + Elf_Internal_Shdr * symtab_hdr; + struct elf_link_hash_entry ** sym_hashes; + struct elf_link_hash_entry ** sym_hashes_end; + const Elf_Internal_Rela * rel; + const Elf_Internal_Rela * rel_end; + + if (info->relocateable) + return true; + + symtab_hdr = & elf_tdata (abfd)->symtab_hdr; + sym_hashes = elf_sym_hashes (abfd); + sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); + if (!elf_bad_symtab (abfd)) + sym_hashes_end -= symtab_hdr->sh_info; + + rel_end = relocs + sec->reloc_count; + + for (rel = relocs; rel < rel_end; rel++) + { + struct elf_link_hash_entry * h; + unsigned long r_symndx; + + r_symndx = ELF32_R_SYM (rel->r_info); + + if (r_symndx < symtab_hdr->sh_info) + h = NULL; + else + h = sym_hashes [r_symndx - symtab_hdr->sh_info]; + + switch (ELF32_R_TYPE (rel->r_info)) + { + /* This relocation describes the C++ object vtable hierarchy. + Reconstruct it for later use during GC. */ + case R_MCORE_GNU_VTINHERIT: + if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) + return false; + break; + + /* This relocation describes which C++ vtable entries are actually + used. Record for later use during GC. */ + case R_MCORE_GNU_VTENTRY: + if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) + return false; + break; + } + } + + return true; +} + +#define TARGET_BIG_SYM bfd_elf32_mcore_big_vec +#define TARGET_BIG_NAME "elf32-mcore-big" +#define TARGET_LITTLE_SYM bfd_elf32_mcore_little_vec +#define TARGET_LITTLE_NAME "elf32-mcore-little" + +#define ELF_ARCH bfd_arch_mcore +#define ELF_MACHINE_CODE EM_MCORE +#define ELF_MAXPAGESIZE 0x1000 /* 4k, if we ever have 'em */ +#define elf_info_to_howto mcore_elf_info_to_howto +#define elf_info_to_howto_rel NULL + + +#define bfd_elf32_bfd_copy_private_bfd_data mcore_elf_copy_private_bfd_data +#define bfd_elf32_bfd_merge_private_bfd_data mcore_elf_merge_private_bfd_data +#define bfd_elf32_bfd_set_private_flags mcore_elf_set_private_flags +#define bfd_elf32_bfd_reloc_type_lookup mcore_elf_reloc_type_lookup +#define elf_backend_relocate_section mcore_elf_relocate_section +#define elf_backend_gc_mark_hook mcore_elf_gc_mark_hook +#define elf_backend_gc_sweep_hook mcore_elf_gc_sweep_hook +#define elf_backend_check_relocs mcore_elf_check_relocs + +#define elf_backend_can_gc_sections 1 + +#include "elf32-target.h" |