#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void mn10200_info_to_howto
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static bfd_boolean mn10200_elf_relax_delete_bytes
PARAMS ((bfd *, asection *, bfd_vma, int));
static bfd_boolean mn10200_elf_symbol_address_p
PARAMS ((bfd *, asection *, Elf_Internal_Sym *, bfd_vma));
static bfd_reloc_status_type mn10200_elf_final_link_relocate
PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
struct bfd_link_info *, asection *, int));
static bfd_boolean mn10200_elf_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *,
asection **));
static bfd_boolean mn10200_elf_relax_section
PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
static bfd_byte * mn10200_elf_get_relocated_section_contents
PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
bfd_byte *, bfd_boolean, asymbol **));
enum reloc_type {
R_MN10200_NONE = 0,
R_MN10200_32,
R_MN10200_16,
R_MN10200_8,
R_MN10200_24,
R_MN10200_PCREL8,
R_MN10200_PCREL16,
R_MN10200_PCREL24,
R_MN10200_MAX
};
static reloc_howto_type elf_mn10200_howto_table[] = {
HOWTO (R_MN10200_NONE,
0,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_MN10200_32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_MN10200_16,
0,
1,
16,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_MN10200_8,
0,
0,
8,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_8",
FALSE,
0xff,
0xff,
FALSE),
HOWTO (R_MN10200_24,
0,
2,
24,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_24",
FALSE,
0xffffff,
0xffffff,
FALSE),
HOWTO (R_MN10200_PCREL8,
0,
0,
8,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL8",
FALSE,
0xff,
0xff,
TRUE),
HOWTO (R_MN10200_PCREL16,
0,
1,
16,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL16",
FALSE,
0xffff,
0xffff,
TRUE),
HOWTO (R_MN10200_PCREL24,
0,
2,
24,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MN10200_PCREL24",
FALSE,
0xffffff,
0xffffff,
TRUE),
};
struct mn10200_reloc_map {
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct mn10200_reloc_map mn10200_reloc_map[] = {
{ BFD_RELOC_NONE , R_MN10200_NONE , },
{ BFD_RELOC_32 , R_MN10200_32 , },
{ BFD_RELOC_16 , R_MN10200_16 , },
{ BFD_RELOC_8 , R_MN10200_8 , },
{ BFD_RELOC_24 , R_MN10200_24 , },
{ BFD_RELOC_8_PCREL , R_MN10200_PCREL8 , },
{ BFD_RELOC_16_PCREL, R_MN10200_PCREL16, },
{ BFD_RELOC_24_PCREL, R_MN10200_PCREL24, },
};
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 (mn10200_reloc_map) / sizeof (struct mn10200_reloc_map);
i++)
{
if (mn10200_reloc_map[i].bfd_reloc_val == code)
return &elf_mn10200_howto_table[mn10200_reloc_map[i].elf_reloc_val];
}
return NULL;
}
static void
mn10200_info_to_howto (abfd, cache_ptr, dst)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
Elf_Internal_Rela *dst;
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_MN10200_MAX);
cache_ptr->howto = &elf_mn10200_howto_table[r_type];
}
static bfd_reloc_status_type
mn10200_elf_final_link_relocate (howto, input_bfd, output_bfd,
input_section, contents, offset, value,
addend, info, sym_sec, is_local)
reloc_howto_type *howto;
bfd *input_bfd;
bfd *output_bfd ATTRIBUTE_UNUSED;
asection *input_section;
bfd_byte *contents;
bfd_vma offset;
bfd_vma value;
bfd_vma addend;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
asection *sym_sec ATTRIBUTE_UNUSED;
int is_local ATTRIBUTE_UNUSED;
{
unsigned long r_type = howto->type;
bfd_byte *hit_data = contents + offset;
switch (r_type)
{
case R_MN10200_NONE:
return bfd_reloc_ok;
case R_MN10200_32:
value += addend;
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_16:
value += addend;
if ((long) value > 0x7fff || (long) value < -0x8000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_8:
value += addend;
if ((long) value > 0x7f || (long) value < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_24:
value += addend;
if ((long) value > 0x7fffff || (long) value < -0x800000)
return bfd_reloc_overflow;
value &= 0xffffff;
value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_PCREL8:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= (offset + 1);
value += addend;
if ((long) value > 0xff || (long) value < -0x100)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_PCREL16:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= (offset + 2);
value += addend;
if ((long) value > 0xffff || (long) value < -0x10000)
return bfd_reloc_overflow;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_MN10200_PCREL24:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= (offset + 3);
value += addend;
if ((long) value > 0xffffff || (long) value < -0x1000000)
return bfd_reloc_overflow;
value &= 0xffffff;
value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
default:
return bfd_reloc_notsupported;
}
}
static bfd_boolean
mn10200_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;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
if (info->relocatable)
return TRUE;
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);
howto = elf_mn10200_howto_table + r_type;
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
{
bfd_boolean unresolved_reloc, warned;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned);
}
r = mn10200_elf_final_link_relocate (howto, input_bfd, output_bfd,
input_section,
contents, rel->r_offset,
relocation, rel->r_addend,
info, sec, h == NULL);
if (r != bfd_reloc_ok)
{
const char *name;
const char *msg = (const char *) 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);
}
switch (r)
{
case bfd_reloc_overflow:
if (! ((*info->callbacks->reloc_overflow)
(info, (h ? &h->root : NULL), 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;
}
static bfd_boolean
mn10200_elf_relax_section (abfd, sec, link_info, again)
bfd *abfd;
asection *sec;
struct bfd_link_info *link_info;
bfd_boolean *again;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
Elf_Internal_Sym *isymbuf = NULL;
*again = FALSE;
if (link_info->relocatable
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0
|| (sec->flags & SEC_CODE) == 0)
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
internal_relocs = (_bfd_elf_link_read_relocs
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
link_info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
{
bfd_vma symval;
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_NONE
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_8
|| ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_MAX)
continue;
if (contents == NULL)
{
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
if (!bfd_malloc_and_get_section (abfd, sec, &contents))
goto error_return;
}
}
if (isymbuf == NULL && symtab_hdr->sh_info != 0)
{
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
if (isymbuf == NULL)
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
symtab_hdr->sh_info, 0,
NULL, NULL, NULL);
if (isymbuf == NULL)
goto error_return;
}
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
Elf_Internal_Sym *isym;
asection *sym_sec;
isym = isymbuf + ELF32_R_SYM (irel->r_info);
if (isym->st_shndx == SHN_UNDEF)
sym_sec = bfd_und_section_ptr;
else if (isym->st_shndx == SHN_ABS)
sym_sec = bfd_abs_section_ptr;
else if (isym->st_shndx == SHN_COMMON)
sym_sec = bfd_com_section_ptr;
else
sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
symval = (isym->st_value
+ sym_sec->output_section->vma
+ sym_sec->output_offset);
}
else
{
unsigned long indx;
struct elf_link_hash_entry *h;
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
h = elf_sym_hashes (abfd)[indx];
BFD_ASSERT (h != NULL);
if (h->root.type != bfd_link_hash_defined
&& h->root.type != bfd_link_hash_defweak)
{
continue;
}
symval = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
}
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL24)
{
bfd_vma value = symval;
value -= (sec->output_section->vma + sec->output_offset);
value -= (irel->r_offset + 3);
value += irel->r_addend;
if ((long) value < 0x8001 && (long) value > -0x8000)
{
unsigned char code;
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xe0 && code != 0xe1)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
if (code == 0xe0)
bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 2);
else if (code == 0xe1)
bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 2);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_PCREL16);
irel->r_offset -= 1;
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = TRUE;
}
}
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL16)
{
bfd_vma value = symval;
value -= (sec->output_section->vma + sec->output_offset);
value -= (irel->r_offset + 2);
value += irel->r_addend;
if ((long) value < 0x80 && (long) value > -0x80)
{
unsigned char code;
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xfc)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
bfd_put_8 (abfd, 0xea, contents + irel->r_offset - 1);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_PCREL8);
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 1))
goto error_return;
*again = TRUE;
}
}
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_PCREL8)
{
Elf_Internal_Rela *nrel;
bfd_vma value = symval;
unsigned char code;
value -= (sec->output_section->vma + sec->output_offset);
value -= (irel->r_offset + 1);
value += irel->r_addend;
if (irel->r_offset == sec->size)
continue;
code = bfd_get_8 (abfd, contents + irel->r_offset + 1);
if (code != 0xea)
continue;
nrel = irel + 1;
if (nrel == irelend
|| irel->r_offset + 2 != nrel->r_offset
|| ELF32_R_TYPE (nrel->r_info) != (int) R_MN10200_PCREL8)
continue;
if (symval != (sec->output_section->vma + sec->output_offset
+ irel->r_offset + 3))
continue;
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code != 0xe0 && code != 0xe1 && code != 0xe2
&& code != 0xe3 && code != 0xe4 && code != 0xe5
&& code != 0xe6 && code != 0xe7 && code != 0xe8
&& code != 0xe9 && code != 0xec && code != 0xed
&& code != 0xee && code != 0xef && code != 0xfc
&& code != 0xfd && code != 0xfe && code != 0xff)
continue;
if (mn10200_elf_symbol_address_p (abfd, sec, isymbuf,
irel->r_offset + 1))
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
switch (code)
{
case 0xfc:
code = 0xfd;
break;
case 0xfd:
code = 0xfc;
break;
case 0xfe:
code = 0xff;
break;
case 0xff:
code = 0xfe;
break;
case 0xe8:
code = 0xe9;
break;
case 0xe9:
code = 0xe8;
break;
case 0xe0:
code = 0xe2;
break;
case 0xe2:
code = 0xe0;
break;
case 0xe3:
code = 0xe1;
break;
case 0xe1:
code = 0xe3;
break;
case 0xe4:
code = 0xe6;
break;
case 0xe6:
code = 0xe4;
break;
case 0xe7:
code = 0xe5;
break;
case 0xe5:
code = 0xe7;
break;
case 0xec:
code = 0xed;
break;
case 0xed:
code = 0xec;
break;
case 0xee:
code = 0xef;
break;
case 0xef:
code = 0xee;
break;
}
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
irel->r_info = nrel->r_info;
nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info),
R_MN10200_NONE);
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = TRUE;
}
if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10200_24)
{
bfd_vma value = symval;
if ((long) value < 0x7fff && (long) value > -0x8000)
{
unsigned char code;
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
if (code != 0xf4)
continue;
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
switch (code & 0xfc)
{
case 0x70:
if (value & 0x8000)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
bfd_put_8 (abfd, 0xf8 + (code & 0x03),
contents + irel->r_offset - 2);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_16);
irel->r_offset -= 1;
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = TRUE;
break;
case 0x74:
case 0x7c:
case 0xc0:
case 0x40:
case 0x44:
case 0xc8:
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
if ((code & 0xfc) == 0x74)
code = 0xdc + (code & 0x03);
else if ((code & 0xfc) == 0x7c)
code = 0xec + (code & 0x03);
else if ((code & 0xfc) == 0xc0)
code = 0xc8 + (code & 0x03);
else if ((code & 0xfc) == 0x40)
code = 0xc0 + (code & 0x03);
else if ((code & 0xfc) == 0x44)
code = 0xc4 + (code & 0x03);
else if ((code & 0xfc) == 0xc8)
code = 0xcc + (code & 0x03);
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_16);
irel->r_offset -= 1;
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = TRUE;
break;
case 0x78:
case 0xd0:
case 0x50:
case 0x60:
case 0x64:
case 0x68:
case 0x6c:
case 0x80:
case 0xf0:
case 0x00:
case 0x10:
case 0xb0:
case 0x30:
case 0xa0:
case 0x20:
case 0x90:
if (((code & 0xfc) == 0x78
|| (code & 0xfc) == 0x60
|| (code & 0xfc) == 0x64
|| (code & 0xfc) == 0x68
|| (code & 0xfc) == 0x6c
|| (code & 0xfc) == 0x80
|| (code & 0xfc) == 0xf0
|| (code & 0xfc) == 0x00
|| (code & 0xfc) == 0x10
|| (code & 0xfc) == 0xb0
|| (code & 0xfc) == 0x30
|| (code & 0xfc) == 0xa0
|| (code & 0xfc) == 0x20
|| (code & 0xfc) == 0x90)
&& (value & 0x8000) != 0)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
bfd_put_8 (abfd, 0xf7, contents + irel->r_offset - 2);
if ((code & 0xfc) == 0x78)
code = 0x48 + (code & 0x03);
else if ((code & 0xfc) == 0xd0)
code = 0x30 + (code & 0x03);
else if ((code & 0xfc) == 0x50)
code = 0x20 + (code & 0x03);
else if ((code & 0xfc) == 0x60)
code = 0x18 + (code & 0x03);
else if ((code & 0xfc) == 0x64)
code = 0x08 + (code & 0x03);
else if ((code & 0xfc) == 0x68)
code = 0x1c + (code & 0x03);
else if ((code & 0xfc) == 0x6c)
code = 0x0c + (code & 0x03);
else if ((code & 0xfc) == 0x80)
code = 0xc0 + (code & 0x07);
else if ((code & 0xfc) == 0xf0)
code = 0xb0 + (code & 0x07);
else if ((code & 0xfc) == 0x00)
code = 0x80 + (code & 0x07);
else if ((code & 0xfc) == 0x10)
code = 0xa0 + (code & 0x07);
else if ((code & 0xfc) == 0xb0)
code = 0x70 + (code & 0x07);
else if ((code & 0xfc) == 0x30)
code = 0x60 + (code & 0x07);
else if ((code & 0xfc) == 0xa0)
code = 0xd0 + (code & 0x07);
else if ((code & 0xfc) == 0x20)
code = 0x90 + (code & 0x07);
else if ((code & 0xfc) == 0x90)
code = 0x50 + (code & 0x07);
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_16);
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 2, 1))
goto error_return;
*again = TRUE;
break;
case 0xc4:
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
bfd_put_8 (abfd, 0xcc + (code & 0x03),
contents + irel->r_offset - 2);
bfd_put_8 (abfd, 0xb8 + (code & 0x03),
contents + irel->r_offset - 1);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MN10200_16);
irel->r_offset -= 1;
if (!mn10200_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 2, 1))
goto error_return;
*again = TRUE;
break;
}
}
}
}
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
{
if (! link_info->keep_memory)
free (isymbuf);
else
{
symtab_hdr->contents = (unsigned char *) isymbuf;
}
}
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
{
if (! link_info->keep_memory)
free (contents);
else
{
elf_section_data (sec)->this_hdr.contents = contents;
}
}
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return TRUE;
error_return:
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != contents)
free (contents);
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return FALSE;
}
static bfd_boolean
mn10200_elf_relax_delete_bytes (abfd, sec, addr, count)
bfd *abfd;
asection *sec;
bfd_vma addr;
int count;
{
Elf_Internal_Shdr *symtab_hdr;
unsigned int sec_shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
Elf_Internal_Rela *irelalign;
bfd_vma toaddr;
Elf_Internal_Sym *isym;
Elf_Internal_Sym *isymend;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **end_hashes;
unsigned int symcount;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
irelalign = NULL;
toaddr = sec->size;
irel = elf_section_data (sec)->relocs;
irelend = irel + sec->reloc_count;
memmove (contents + addr, contents + addr + count,
(size_t) (toaddr - addr - count));
sec->size -= count;
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
{
if ((irel->r_offset > addr
&& irel->r_offset < toaddr))
irel->r_offset -= count;
}
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
{
if (isym->st_shndx == sec_shndx
&& isym->st_value > addr
&& isym->st_value < toaddr)
isym->st_value -= count;
}
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info);
sym_hashes = elf_sym_hashes (abfd);
end_hashes = sym_hashes + symcount;
for (; sym_hashes < end_hashes; sym_hashes++)
{
struct elf_link_hash_entry *sym_hash = *sym_hashes;
if ((sym_hash->root.type == bfd_link_hash_defined
|| sym_hash->root.type == bfd_link_hash_defweak)
&& sym_hash->root.u.def.section == sec
&& sym_hash->root.u.def.value > addr
&& sym_hash->root.u.def.value < toaddr)
{
sym_hash->root.u.def.value -= count;
}
}
return TRUE;
}
static bfd_boolean
mn10200_elf_symbol_address_p (abfd, sec, isym, addr)
bfd *abfd;
asection *sec;
Elf_Internal_Sym *isym;
bfd_vma addr;
{
Elf_Internal_Shdr *symtab_hdr;
unsigned int sec_shndx;
Elf_Internal_Sym *isymend;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **end_hashes;
unsigned int symcount;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
{
if (isym->st_shndx == sec_shndx
&& isym->st_value == addr)
return TRUE;
}
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info);
sym_hashes = elf_sym_hashes (abfd);
end_hashes = sym_hashes + symcount;
for (; sym_hashes < end_hashes; sym_hashes++)
{
struct elf_link_hash_entry *sym_hash = *sym_hashes;
if ((sym_hash->root.type == bfd_link_hash_defined
|| sym_hash->root.type == bfd_link_hash_defweak)
&& sym_hash->root.u.def.section == sec
&& sym_hash->root.u.def.value == addr)
return TRUE;
}
return FALSE;
}
static bfd_byte *
mn10200_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
data, relocatable, symbols)
bfd *output_bfd;
struct bfd_link_info *link_info;
struct bfd_link_order *link_order;
bfd_byte *data;
bfd_boolean relocatable;
asymbol **symbols;
{
Elf_Internal_Shdr *symtab_hdr;
asection *input_section = link_order->u.indirect.section;
bfd *input_bfd = input_section->owner;
asection **sections = NULL;
Elf_Internal_Rela *internal_relocs = NULL;
Elf_Internal_Sym *isymbuf = NULL;
if (relocatable
|| elf_section_data (input_section)->this_hdr.contents == NULL)
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
link_order, data,
relocatable,
symbols);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
(size_t) input_section->size);
if ((input_section->flags & SEC_RELOC) != 0
&& input_section->reloc_count > 0)
{
Elf_Internal_Sym *isym;
Elf_Internal_Sym *isymend;
asection **secpp;
bfd_size_type amt;
internal_relocs = (_bfd_elf_link_read_relocs
(input_bfd, input_section, (PTR) NULL,
(Elf_Internal_Rela *) NULL, FALSE));
if (internal_relocs == NULL)
goto error_return;
if (symtab_hdr->sh_info != 0)
{
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
if (isymbuf == NULL)
isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
symtab_hdr->sh_info, 0,
NULL, NULL, NULL);
if (isymbuf == NULL)
goto error_return;
}
amt = symtab_hdr->sh_info;
amt *= sizeof (asection *);
sections = (asection **) bfd_malloc (amt);
if (sections == NULL && amt != 0)
goto error_return;
isymend = isymbuf + symtab_hdr->sh_info;
for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
{
asection *isec;
if (isym->st_shndx == SHN_UNDEF)
isec = bfd_und_section_ptr;
else if (isym->st_shndx == SHN_ABS)
isec = bfd_abs_section_ptr;
else if (isym->st_shndx == SHN_COMMON)
isec = bfd_com_section_ptr;
else
isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
*secpp = isec;
}
if (! mn10200_elf_relocate_section (output_bfd, link_info, input_bfd,
input_section, data, internal_relocs,
isymbuf, sections))
goto error_return;
if (sections != NULL)
free (sections);
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
if (elf_section_data (input_section)->relocs != internal_relocs)
free (internal_relocs);
}
return data;
error_return:
if (sections != NULL)
free (sections);
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
if (internal_relocs != NULL
&& elf_section_data (input_section)->relocs != internal_relocs)
free (internal_relocs);
return NULL;
}
#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
#define TARGET_LITTLE_NAME "elf32-mn10200"
#define ELF_ARCH bfd_arch_mn10200
#define ELF_MACHINE_CODE EM_MN10200
#define ELF_MACHINE_ALT1 EM_CYGNUS_MN10200
#define ELF_MAXPAGESIZE 0x1000
#define elf_backend_rela_normal 1
#define elf_info_to_howto mn10200_info_to_howto
#define elf_info_to_howto_rel 0
#define elf_backend_relocate_section mn10200_elf_relocate_section
#define bfd_elf32_bfd_relax_section mn10200_elf_relax_section
#define bfd_elf32_bfd_get_relocated_section_contents \
mn10200_elf_get_relocated_section_contents
#define elf_symbol_leading_char '_'
#include "elf32-target.h"