#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 **));
#define USE_REL
static reloc_howto_type elf_d10v_howto_table[] =
{
HOWTO (R_D10V_NONE,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_D10V_NONE",
false,
0,
0,
false),
HOWTO (R_D10V_10_PCREL_R,
2,
2,
8,
true,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_D10V_10_PCREL_R",
false,
0xff,
0xff,
true),
HOWTO (R_D10V_10_PCREL_L,
2,
2,
8,
true,
15,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_D10V_10_PCREL_L",
false,
0x07f8000,
0x07f8000,
true),
HOWTO (R_D10V_16,
0,
1,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_D10V_16",
false,
0xffff,
0xffff,
false),
HOWTO (R_D10V_18,
2,
1,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_D10V_18",
false,
0xffff,
0xffff,
false),
HOWTO (R_D10V_18_PCREL,
2,
2,
16,
true,
0,
complain_overflow_signed,
bfd_elf_generic_reloc,
"R_D10V_18_PCREL",
false,
0xffff,
0xffff,
true),
HOWTO (R_D10V_32,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_D10V_32",
false,
0xffffffff,
0xffffffff,
false),
HOWTO (R_D10V_GNU_VTINHERIT,
0,
2,
0,
false,
0,
complain_overflow_dont,
NULL,
"R_D10V_GNU_VTINHERIT",
false,
0,
0,
false),
HOWTO (R_D10V_GNU_VTENTRY,
0,
2,
0,
false,
0,
complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn,
"R_D10V_GNU_VTENTRY",
false,
0,
0,
false),
};
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;
}
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;
{
return true;
}
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))
{
case R_D10V_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return false;
break;
case R_D10V_GNU_VTENTRY:
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset))
return false;
break;
}
}
return true;
}
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)
{
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;
}
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");
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"