#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/i860.h"
static reloc_howto_type *lookup_howto
PARAMS ((unsigned int));
static reloc_howto_type *elf32_i860_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void elf32_i860_info_to_howto_rela
PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
static bfd_reloc_status_type elf32_i860_relocate_splitn
PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_i860_relocate_pc16
PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_i860_relocate_pc26
PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static bfd_reloc_status_type elf32_i860_relocate_highadj
PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
static boolean elf32_i860_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static bfd_reloc_status_type i860_final_link_relocate
PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, bfd_vma));
static boolean elf32_i860_is_local_label_name
PARAMS ((bfd *, const char *));
static reloc_howto_type elf32_i860_howto_table [] =
{
HOWTO (R_860_NONE,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_NONE",
false,
0,
0,
false),
HOWTO (R_860_32,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_32",
false,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_COPY,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_COPY",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_GLOB_DAT,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_GLOB_DAT",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_JUMP_SLOT,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_JUMP_SLOT",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_RELATIVE,
0,
2,
32,
false,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_RELATIVE",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_PC26,
2,
2,
26,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_PC26",
false,
0x3ffffff,
0x3ffffff,
true),
HOWTO (R_860_PLT26,
0,
2,
26,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_PLT26",
true,
0xffffffff,
0xffffffff,
true),
HOWTO (R_860_PC16,
2,
2,
16,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_PC16",
false,
0x1f07ff,
0x1f07ff,
true),
HOWTO (R_860_LOW0,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOW0",
false,
0xffff,
0xffff,
false),
HOWTO (R_860_SPLIT0,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPLIT0",
false,
0x1f07ff,
0x1f07ff,
false),
HOWTO (R_860_LOW1,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOW1",
false,
0xfffe,
0xfffe,
false),
HOWTO (R_860_SPLIT1,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPLIT1",
false,
0x1f07fe,
0x1f07fe,
false),
HOWTO (R_860_LOW2,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOW2",
false,
0xfffc,
0xfffc,
false),
HOWTO (R_860_SPLIT2,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPLIT2",
false,
0x1f07fc,
0x1f07fc,
false),
HOWTO (R_860_LOW3,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOW3",
false,
0xfff8,
0xfff8,
false),
HOWTO (R_860_LOGOT0,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOT0",
false,
0,
0xffff,
true),
HOWTO (R_860_SPGOT0,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPGOT0",
false,
0,
0xffff,
true),
HOWTO (R_860_LOGOT1,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOT1",
false,
0,
0xffff,
true),
HOWTO (R_860_SPGOT1,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPGOT1",
false,
0,
0xffff,
true),
HOWTO (R_860_LOGOTOFF0,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOTOFF0",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_SPGOTOFF0,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPGOTOFF0",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_LOGOTOFF1,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOTOFF1",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_SPGOTOFF1,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_SPGOTOFF1",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_LOGOTOFF2,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOTOFF2",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_LOGOTOFF3,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_LOGOTOFF3",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_LOPC,
0,
2,
16,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_LOPC",
false,
0xffff,
0xffff,
true),
HOWTO (R_860_HIGHADJ,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HIGHADJ",
false,
0xffff,
0xffff,
false),
HOWTO (R_860_HAGOT,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HAGOT",
false,
0,
0xffff,
true),
HOWTO (R_860_HAGOTOFF,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HAGOTOFF",
true,
0xffffffff,
0xffffffff,
false),
HOWTO (R_860_HAPC,
0,
2,
16,
true,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_860_HAPC",
false,
0xffff,
0xffff,
true),
HOWTO (R_860_HIGH,
16,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HIGH",
false,
0xffff,
0xffff,
false),
HOWTO (R_860_HIGOT,
0,
2,
16,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HIGOT",
false,
0,
0xffff,
true),
HOWTO (R_860_HIGOTOFF,
0,
2,
32,
false,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_860_HIGOTOFF",
true,
0xffffffff,
0xffffffff,
false),
};
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;
}
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);
}
static void
elf32_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 ((unsigned) ELF32_R_TYPE (elf_reloc->r_info));
}
static bfd_reloc_status_type
elf32_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 ((unsigned) ELF32_R_TYPE (rello->r_info));
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
value += rello->r_addend;
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;
}
static bfd_reloc_status_type
elf32_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 ((unsigned) ELF32_R_TYPE (rello->r_info));
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= rello->r_offset;
value += rello->r_addend;
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;
}
static bfd_reloc_status_type
elf32_i860_relocate_pc26 (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 ((unsigned) ELF32_R_TYPE (rello->r_info));
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= rello->r_offset;
value += rello->r_addend;
value = ((value - 4) >> howto->rightshift) & howto->dst_mask;
insn = (insn & ~howto->dst_mask) | value;
bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
elf32_i860_relocate_highadj (input_bfd, rel, contents, value)
bfd *input_bfd;
Elf_Internal_Rela *rel;
bfd_byte *contents;
bfd_vma value;
{
bfd_vma insn;
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
value += ((rel->r_addend & 0x8000) << 1);
value += rel->r_addend;
value = ((value >> 16) & 0xffff);
insn = (insn & 0xffff0000) | value;
bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
i860_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation)
reloc_howto_type * howto;
bfd * input_bfd;
asection * input_section;
bfd_byte * contents;
Elf_Internal_Rela * rel;
bfd_vma relocation;
{
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, relocation,
rel->r_addend);
}
static boolean
elf32_i860_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, local_syms, local_sections)
bfd * output_bfd ATTRIBUTE_UNUSED;
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;
Elf_Internal_Rela * relend;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel ++)
{
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;
const char * name = NULL;
int r_type;
r_type = ELF32_R_TYPE (rel->r_info);
#if 0
if ( r_type == R_860_GNU_VTINHERIT
|| r_type == R_860_GNU_VTENTRY)
continue;
#endif
r_symndx = ELF32_R_SYM (rel->r_info);
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;
}
howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info));
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);
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
}
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;
name = h->root.root.string;
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;
}
}
switch (r_type)
{
default:
r = i860_final_link_relocate (howto, input_bfd, input_section,
contents, rel, relocation);
break;
case R_860_HIGHADJ:
r = elf32_i860_relocate_highadj (input_bfd, rel, contents,
relocation);
break;
case R_860_PC16:
r = elf32_i860_relocate_pc16 (input_bfd, input_section, rel,
contents, relocation);
break;
case R_860_PC26:
r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
contents, relocation);
break;
case R_860_SPLIT0:
case R_860_SPLIT1:
case R_860_SPLIT2:
r = elf32_i860_relocate_splitn (input_bfd, rel, contents,
relocation);
break;
case R_860_COPY:
case R_860_GLOB_DAT:
case R_860_JUMP_SLOT:
case R_860_RELATIVE:
case R_860_PLT26:
case R_860_LOGOT0:
case R_860_SPGOT0:
case R_860_LOGOT1:
case R_860_SPGOT1:
case R_860_LOGOTOFF0:
case R_860_SPGOTOFF0:
case R_860_LOGOTOFF1:
case R_860_SPGOTOFF1:
case R_860_LOGOTOFF2:
case R_860_LOGOTOFF3:
case R_860_LOPC:
case R_860_HAGOT:
case R_860_HAGOTOFF:
case R_860_HAPC:
case R_860_HIGOT:
case R_860_HIGOTOFF:
r = bfd_reloc_notsupported;
break;
}
if (r != bfd_reloc_ok)
{
const char * msg = (const char *) NULL;
switch (r)
{
case bfd_reloc_overflow:
r = info->callbacks->reloc_overflow
(info, name, howto->name, (bfd_vma) 0,
input_bfd, input_section, rel->r_offset);
break;
case bfd_reloc_undefined:
r = info->callbacks->undefined_symbol
(info, name, input_bfd, input_section, rel->r_offset, true);
break;
case bfd_reloc_outofrange:
msg = _("internal error: out of range error");
break;
case bfd_reloc_notsupported:
msg = _("internal error: unsupported relocation error");
break;
case bfd_reloc_dangerous:
msg = _("internal error: dangerous relocation");
break;
default:
msg = _("internal error: unknown error");
break;
}
if (msg)
r = info->callbacks->warning
(info, msg, name, input_bfd, input_section, rel->r_offset);
if (! r)
return false;
}
}
return true;
}
static boolean
elf32_i860_is_local_label_name (abfd, name)
bfd *abfd;
const char *name;
{
if (name[0] == '.' && name[1] == 'e' && name[2] == 'p' && name[3] == '.')
return true;
return _bfd_elf_is_local_label_name (abfd, name);
}
#define TARGET_BIG_SYM bfd_elf32_i860_vec
#define TARGET_BIG_NAME "elf32-i860"
#define TARGET_LITTLE_SYM bfd_elf32_i860_little_vec
#define TARGET_LITTLE_NAME "elf32-i860-little"
#define ELF_ARCH bfd_arch_i860
#define ELF_MACHINE_CODE EM_860
#define ELF_MAXPAGESIZE 4096
#define elf_info_to_howto_rel NULL
#define elf_info_to_howto elf32_i860_info_to_howto_rela
#define elf_backend_relocate_section elf32_i860_relocate_section
#define bfd_elf32_bfd_reloc_type_lookup elf32_i860_reloc_type_lookup
#define bfd_elf32_bfd_is_local_label_name elf32_i860_is_local_label_name
#include "elf32-target.h"