mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-05 02:47:05 +00:00
9ad5cbcfb2
include/elf/ChangeLog * external.h (Elf_External_Sym_Shndx): Declare. * internal.h (struct elf_internal_sym <st_shndx>): Make it an unsigned int. * common.h (SHN_BAD): Define. bfd/ChangeLog * configure.in: Bump bfd version. * configure: Regenerate. * elf-bfd.h (elf_size_info <swap_symbol_out>): Add shndx param. (bfd_elf32_swap_symbol_in): Likewise. (bfd_elf32_swap_symbol_out): Likewise. (bfd_elf64_swap_symbol_in): Likewise. (bfd_elf64_swap_symbol_out): Likewise. (elf_reloc_cookie): Add locsym_shndx field. Make locsyms a PTR. (elf_obj_tdata): Add num_elf_sections, symtab_shndx_hdr and symtab_shndx_section. (elf_numsections): Define. (elf_symtab_shndx): Define. * elf.c (setup_group): Use elf_numsections rather than header e_shnum. (bfd_elf_find_section): Likewise. (bfd_section_from_elf_index): Likewise. (bfd_section_from_shdr): Likewise. Handle SHT_SYMTAB_SHNDX. (bfd_section_from_r_symndx): Read symbol shndx extension, and translate st_shndx for > SHN_HIRESERVE. (assign_section_numbers): Skip reserved sections. Assign symtab_shndx_section and elf_numsections. Exclude reserved sections from e_shnum. Set up symtab_shndx_hdr. (_bfd_elf_compute_section_file_positions): Handle symtab_shndx_hdr. (map_sections_to_segments): Don't map eh_frame_hdr unless required. (assign_file_positions_except_relocs): Use elf_numsections rather than header e_shnum. Skip reserved sections and symtab_shndx_section. (prep_headers): Set name for symtab_shndx_hdr. (_bfd_elf_assign_file_positions_for_relocs): Use elf_numsections. (_bfd_elf_write_object_contents): Likewise. Skip reserved sections. (_bfd_elf_section_from_bfd_section): Check bfd_{abs,com,und}_section first. Use elf_section_data if available. Use elf_numsections. Start scan at index 1. (copy_private_bfd_data ): Comment fixes. (MAP_ONESYMTAB): Define above SHN_HIOS. (MAP_DYNSYMTAB): Likewise. (MAP_STRTAB): Likewise. (MAP_SHSTRTAB): Likewise. (MAP_SYM_SHNDX): New define. (_bfd_elf_copy_private_symbol_data): Handle symtab_shndx_section. (swap_out_syms): Swap out SHT_SYMTAB_SHNDX section too. * elfcode.h (elf_swap_symbol_in): Add shndx param, and handle shndx extension. (elf_swap_symbol_out): Likewise. (elf_object_p): Set elf_numsections, and use instead of e_shnum. Initialialise reserved elf_elfsections to point at shdr[0]. Remove redundant bfd_release calls. (elf_slurp_symbol_table): Read symbol shndx extension, and use with elf_swap_symbol_in. Translate st_shndx for > SHN_HIRESERVE too. * elflink.h (elf_link_is_defined_archive_symbol): Read symbol shndx extension, and use with elf_swap_symbol_in. (elf_link_record_local_dynamic_symbol): Likewise. (elf_link_add_object_symbols): Likewise. Also translate st_shndx for elf sections > SHN_HIRESERVE. (NAME(bfd_elf,size_dynamic_sections)): Adjust elf_swap_symbol_out call. (struct elf_final_link_info): Add locsym_shndx and symshndxbuf. (elf_bfd_final_link): Allocate the above, and tidy code allocating other buffers. Use elf_numsections instead of e_shnum. Adjust elf_swap_symbol_out calls. (elf_link_output_sym): Swap out symbol shndx extension too. (elf_link_flush_output_syms): And flush them to disk. (elf_link_output_extsym): Use SHN_BAD. Adjust elf_swap_symbol_out calls. (elf_gc_mark): Read symbol shndx extension, and use with elf_swap_symbol_in. (elf_link_input_bfd): Likewise, Translate st_shndx for elf sections > SHN_HIRESERVE too. Use SHN_BAD. (elf_reloc_symbol_deleted_p): Use symbol shndx extensions with elf_swap_symbol_in. Translate st_shndx > SHN_HIRESERVE too. (elf_bfd_discard_info): Read symbol shndx extension. Don't attempt to continue after a bfd error. * elf-m10200.c (mn10200_elf_relax_section): Only read local syms. Stash them immediately to symtab_hdr->contents rather than later in multiple places. Clean up afterwards. Read symbol shndx extension, and use with swap_symbol_in. Translate SHN_UNDEF, SHN_ABS, SHN_COMMON and elf sections > SHN_HIRESERVE to bfd sections too. Remove dead code. (mn10200_elf_relax_delete_bytes): Use symbol shndx extension when swapping in symbols. Tidy code adjusting global syms. Don't swap in global syms. (mn10200_elf_symbol_address_p): Likewise. Remove extsyms param. (mn10200_elf_get_relocated_section_contents): Read symbol shndx extension, and use with swap_symbol_in. Rename "size" -> "amt" to maximize code in common with other files. Translate st_shndx for > SHN_HIRESERVE too. Remove dead code. * elf-m10300.c (mn10300_elf_relax_section): Only read local syms. Stash them immediately to symtab_hdr->contents rather than later in multiple places. Clean up afterwards. Read symbol shndx extension, and use with swap_symbol_in. Remove dead code. (mn10300_elf_relax_delete_bytes): As for elf-m10200.c. (mn10300_elf_symbol_address_p): Likewise. (mn10300_elf_get_relocated_section_contents): Likewise. * elf32-h8300.c (elf32_h8_relax_section): As for elf-m10300.c. (elf32_h8_relax_delete_bytes): Likewise. (elf32_h8_symbol_address_p): Likewise. (elf32_h8_get_relocated_section_contents): Likewise. * elf32-hppa.c (elf32_hppa_size_stubs): Read symbol shndx extension, and use with swap_symbol_in. * elf64-hppa.c (elf64_hppa_check_relocs): Likewise. * elf32-i370.c (i370_elf_finish_dynamic_sections): Adjust call to bfd_elf32_swap_symbol_out. * elf32-m32r.c (m32r_elf_get_relocated_section_contents): Translate elf sections > SHN_HIRESERVE too. * elf32-m68k.c (bfd_m68k_elf32_create_embedded_relocs): Only read local syms. Read symbol shndx extension, and use with swap_symbol_in. * elf32-mips.c (_bfd_mips_elf_final_write_processing): Use elf_numsections rather than header e_shnum. * elf32-sh.c (sh_elf_relax_section): As for elf-m10300.c. (sh_elf_relax_delete_bytes): Likewise. (sh_elf_get_relocated_section_contents): Likewise. Only read local symbols. * elf32-v850.c (v850_elf_symbol_processing): Use an unsigned int to hold section index. Use elf_numsections rather than e_shnum. Rename "index" -> "indx" to avoid shadowing warning. (v850_elf_add_symbol_hook): Likewise. * elf64-alpha.c (elf64_alpha_relax_section): Only read local syms. Read symbol shndx extension, and use with swap_symbol_in. * elf32-xstormy16.c (xstormy16_elf_relax_section): Likewise. Translate SHN_COMMON and elf sections > SHN_HIRESERVE too. * elfxx-ia64.c (elfNN_ia64_relax_section): Likewise. (elfNN_ia64_aix_add_symbol_hook): Use elf_numsections. * elf-m10300.c (mn10300_elf_gc_mark_hook): Remove unnecessary checks before calling bfd_section_from_elf_index on local syms. * elf32-arm.h (elf32_arm_gc_mark_hook): Likewise. * elf32-avr.c (elf32_avr_gc_mark_hook): Likewise. * elf32-cris.c (cris_elf_gc_mark_hook): Likewise. * elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise. * elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise. * elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise. * elf32-i386.c (elf_i386_gc_mark_hook): Likewise. * elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise. * elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise. * elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise. * elf32-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise. * elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise. * elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise. * elf32-s390.c (elf_s390_gc_mark_hook): Likewise. * elf32-sh.c (sh_elf_gc_mark_hook): Likewise. * elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise. * elf32-v850.c (v850_elf_gc_mark_hook): Likewise. * elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise. * elf64-mips.c (mips_elf64_gc_mark_hook): Likewise. * elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise. * elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise. * elf64-s390.c (elf_s390_gc_mark_hook): Likewise. * elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise. binutils/ChangeLog * readelf.c (symtab_shndx_hdr): New global. (SECTION_HEADER_INDEX): Define. (SECTION_HEADER_NUM): Define. (SECTION_HEADER): Define. (GET_ELF_SYMBOLS): Pass two params rather than three. (get_32bit_elf_symbols): Take file and section args. Read and use SHT_SYMTAB_SHNDX. (get_64bit_elf_symbols): Likewise. (dump_relocations): Use SECTION_HEADER to index "section_headers". (process_section_headers): Likewise. Use SECTION_HEADER_NUM too. Remember symtab_shdx_hdr. (process_program_headers): Scan from index 1 for segment map. (slurp_ia64_unwind_table): Use SECTION_HEADER to index "section_headers". (process_relocs): Likewise. Also adjust call to GET_ELF_SYMBOLS. (process_unwind): Likewise. (process_version_sections): Likewise. (process_symbol_table): Likewise. (display_debug_info): Likewise. (process_dynamic_segment): Fake up a symtab section for changed GET_ELF_SYMBOLS. (get_symbol_index_type): Check SHN_LOOS before SHN_LORESERVE. (process_program_headers): Kill signed/unsigned warning. (load_debug_str): Likewise. (display_debug_info): Likewise.
528 lines
16 KiB
C
528 lines
16 KiB
C
/* D10V-specific support for 32-bit ELF
|
|
Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
|
Contributed by Martin Hunt (hunt@cygnus.com).
|
|
|
|
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 "elf-bfd.h"
|
|
#include "elf/d10v.h"
|
|
|
|
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
|
|
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
|
|
static void d10v_info_to_howto_rel
|
|
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
|
|
static asection * elf32_d10v_gc_mark_hook
|
|
PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
|
|
struct elf_link_hash_entry *, Elf_Internal_Sym *));
|
|
static boolean elf32_d10v_gc_sweep_hook
|
|
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
|
const Elf_Internal_Rela *));
|
|
static boolean elf32_d10v_check_relocs
|
|
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
|
const Elf_Internal_Rela *));
|
|
static boolean elf32_d10v_relocate_section
|
|
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
|
|
bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *,
|
|
asection **));
|
|
|
|
/* Use REL instead of RELA to save space. */
|
|
#define USE_REL
|
|
|
|
static reloc_howto_type elf_d10v_howto_table[] =
|
|
{
|
|
/* This reloc does nothing. */
|
|
HOWTO (R_D10V_NONE, /* 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_D10V_NONE", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* An PC Relative 10-bit relocation, shifted by 2 */
|
|
/* right container */
|
|
HOWTO (R_D10V_10_PCREL_R, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_D10V_10_PCREL_R", /* name */
|
|
false, /* partial_inplace */
|
|
0xff, /* src_mask */
|
|
0xff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* An PC Relative 10-bit relocation, shifted by 2 */
|
|
/* left container */
|
|
HOWTO (R_D10V_10_PCREL_L, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
true, /* pc_relative */
|
|
15, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_D10V_10_PCREL_L", /* name */
|
|
false, /* partial_inplace */
|
|
0x07f8000, /* src_mask */
|
|
0x07f8000, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* A 16 bit absolute relocation */
|
|
HOWTO (R_D10V_16, /* type */
|
|
0, /* rightshift */
|
|
1, /* 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_D10V_16", /* name */
|
|
false, /* partial_inplace */
|
|
0xffff, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* An 18 bit absolute relocation, right shifted 2 */
|
|
HOWTO (R_D10V_18, /* type */
|
|
2, /* rightshift */
|
|
1, /* 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_D10V_18", /* name */
|
|
false, /* partial_inplace */
|
|
0xffff, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* A relative 18 bit relocation, right shifted by 2 */
|
|
HOWTO (R_D10V_18_PCREL, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
16, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_D10V_18_PCREL", /* name */
|
|
false, /* partial_inplace */
|
|
0xffff, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* A 32 bit absolute relocation */
|
|
HOWTO (R_D10V_32, /* 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_D10V_32", /* name */
|
|
false, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* GNU extension to record C++ vtable hierarchy */
|
|
HOWTO (R_D10V_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_D10V_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_D10V_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_D10V_GNU_VTENTRY", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
};
|
|
|
|
/* Map BFD reloc types to D10V ELF reloc types. */
|
|
|
|
struct d10v_reloc_map
|
|
{
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
|
unsigned char elf_reloc_val;
|
|
};
|
|
|
|
static const struct d10v_reloc_map d10v_reloc_map[] =
|
|
{
|
|
{ BFD_RELOC_NONE, R_D10V_NONE, },
|
|
{ BFD_RELOC_D10V_10_PCREL_R, R_D10V_10_PCREL_R },
|
|
{ BFD_RELOC_D10V_10_PCREL_L, R_D10V_10_PCREL_L },
|
|
{ BFD_RELOC_16, R_D10V_16 },
|
|
{ BFD_RELOC_D10V_18, R_D10V_18 },
|
|
{ BFD_RELOC_D10V_18_PCREL, R_D10V_18_PCREL },
|
|
{ BFD_RELOC_32, R_D10V_32 },
|
|
{ BFD_RELOC_VTABLE_INHERIT, R_D10V_GNU_VTINHERIT },
|
|
{ BFD_RELOC_VTABLE_ENTRY, R_D10V_GNU_VTENTRY },
|
|
};
|
|
|
|
static reloc_howto_type *
|
|
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
bfd_reloc_code_real_type code;
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0;
|
|
i < sizeof (d10v_reloc_map) / sizeof (struct d10v_reloc_map);
|
|
i++)
|
|
{
|
|
if (d10v_reloc_map[i].bfd_reloc_val == code)
|
|
return &elf_d10v_howto_table[d10v_reloc_map[i].elf_reloc_val];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Set the howto pointer for an D10V ELF reloc. */
|
|
|
|
static void
|
|
d10v_info_to_howto_rel (abfd, cache_ptr, dst)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
arelent *cache_ptr;
|
|
Elf32_Internal_Rel *dst;
|
|
{
|
|
unsigned int r_type;
|
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
|
BFD_ASSERT (r_type < (unsigned int) R_D10V_max);
|
|
cache_ptr->howto = &elf_d10v_howto_table[r_type];
|
|
}
|
|
|
|
static asection *
|
|
elf32_d10v_gc_mark_hook (abfd, info, rel, h, sym)
|
|
bfd *abfd;
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
|
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_D10V_GNU_VTINHERIT:
|
|
case R_D10V_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;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static boolean
|
|
elf32_d10v_gc_sweep_hook (abfd, info, sec, relocs)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
|
asection *sec ATTRIBUTE_UNUSED;
|
|
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
|
|
{
|
|
/* we don't use got and plt entries for d10v */
|
|
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
|
|
elf32_d10v_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, **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_D10V_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_D10V_GNU_VTENTRY:
|
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
|
|
return false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Relocate a D10V ELF section. */
|
|
static boolean
|
|
elf32_d10v_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;
|
|
struct elf_link_hash_entry **sym_hashes;
|
|
Elf_Internal_Rela *rel, *relend;
|
|
const char *name;
|
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
|
|
|
rel = relocs;
|
|
relend = relocs + input_section->reloc_count;
|
|
for (; rel < relend; rel++)
|
|
{
|
|
int r_type;
|
|
reloc_howto_type *howto;
|
|
unsigned long r_symndx;
|
|
Elf_Internal_Sym *sym;
|
|
asection *sec;
|
|
struct elf_link_hash_entry *h;
|
|
bfd_vma relocation;
|
|
bfd_reloc_status_type r;
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
|
if (r_type == R_D10V_GNU_VTENTRY
|
|
|| r_type == R_D10V_GNU_VTINHERIT )
|
|
continue;
|
|
|
|
howto = elf_d10v_howto_table + r_type;
|
|
|
|
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 (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
|
{
|
|
sec = local_sections[r_symndx];
|
|
rel->r_addend += sec->output_offset + sym->st_value;
|
|
}
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
/* This is a final link. */
|
|
h = NULL;
|
|
sym = NULL;
|
|
sec = NULL;
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
{
|
|
sym = local_syms + r_symndx;
|
|
sec = local_sections[r_symndx];
|
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
|
|
}
|
|
else
|
|
{
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
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->callbacks->undefined_symbol)
|
|
(info, h->root.root.string, input_bfd,
|
|
input_section, rel->r_offset, true)))
|
|
return false;
|
|
relocation = 0;
|
|
}
|
|
}
|
|
|
|
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 || *name == '\0')
|
|
name = bfd_section_name (input_bfd, sec);
|
|
}
|
|
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
|
contents, rel->r_offset,
|
|
relocation, rel->r_addend);
|
|
|
|
if (r != bfd_reloc_ok)
|
|
{
|
|
const char * msg = (const char *) 0;
|
|
|
|
switch (r)
|
|
{
|
|
case bfd_reloc_overflow:
|
|
if (!((*info->callbacks->reloc_overflow)
|
|
(info, name, howto->name, (bfd_vma) 0,
|
|
input_bfd, input_section, rel->r_offset)))
|
|
return false;
|
|
break;
|
|
|
|
case bfd_reloc_undefined:
|
|
if (!((*info->callbacks->undefined_symbol)
|
|
(info, name, input_bfd, input_section,
|
|
rel->r_offset, true)))
|
|
return false;
|
|
break;
|
|
|
|
case bfd_reloc_outofrange:
|
|
msg = _ ("internal error: out of range error");
|
|
goto common_error;
|
|
|
|
case bfd_reloc_notsupported:
|
|
msg = _ ("internal error: unsupported relocation error");
|
|
goto common_error;
|
|
|
|
case bfd_reloc_dangerous:
|
|
msg = _ ("internal error: dangerous error");
|
|
goto common_error;
|
|
|
|
default:
|
|
msg = _ ("internal error: unknown error");
|
|
/* fall through */
|
|
|
|
common_error:
|
|
if (!((*info->callbacks->warning)
|
|
(info, msg, name, input_bfd, input_section,
|
|
rel->r_offset)))
|
|
return false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
#define ELF_ARCH bfd_arch_d10v
|
|
#define ELF_MACHINE_CODE EM_D10V
|
|
#define ELF_MACHINE_ALT1 EM_CYGNUS_D10V
|
|
#define ELF_MAXPAGESIZE 0x1000
|
|
|
|
#define TARGET_BIG_SYM bfd_elf32_d10v_vec
|
|
#define TARGET_BIG_NAME "elf32-d10v"
|
|
|
|
#define elf_info_to_howto 0
|
|
#define elf_info_to_howto_rel d10v_info_to_howto_rel
|
|
#define elf_backend_object_p 0
|
|
#define elf_backend_final_write_processing 0
|
|
#define elf_backend_gc_mark_hook elf32_d10v_gc_mark_hook
|
|
#define elf_backend_gc_sweep_hook elf32_d10v_gc_sweep_hook
|
|
#define elf_backend_check_relocs elf32_d10v_check_relocs
|
|
#define elf_backend_relocate_section elf32_d10v_relocate_section
|
|
#define elf_backend_can_gc_sections 1
|
|
|
|
#include "elf32-target.h"
|