#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/h8.h"
static reloc_howto_type *elf32_h8_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void elf32_h8_info_to_howto
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static void elf32_h8_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
static unsigned long elf32_h8_mach
PARAMS ((flagword));
static void elf32_h8_final_write_processing
PARAMS ((bfd *, boolean));
static boolean elf32_h8_object_p
PARAMS ((bfd *));
static boolean elf32_h8_merge_private_bfd_data
PARAMS ((bfd *, bfd *));
static boolean elf32_h8_relax_section
PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
static boolean elf32_h8_relax_delete_bytes
PARAMS ((bfd *, asection *, bfd_vma, int));
static boolean elf32_h8_symbol_address_p
PARAMS ((bfd *, asection *, bfd_vma));
static bfd_byte *elf32_h8_get_relocated_section_contents
PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
bfd_byte *, boolean, asymbol **));
static bfd_reloc_status_type elf32_h8_final_link_relocate
PARAMS ((unsigned long, bfd *, bfd *, asection *,
bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
struct bfd_link_info *, asection *, int));
static boolean elf32_h8_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
bfd_byte *, Elf_Internal_Rela *,
Elf_Internal_Sym *, asection **));
static bfd_reloc_status_type special
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static reloc_howto_type h8_elf_howto_table[] =
{
#define R_H8_NONE_X 0
HOWTO (R_H8_NONE,
0,
0,
0,
false,
0,
complain_overflow_dont,
special,
"R_H8_NONE",
false,
0,
0,
false),
#define R_H8_DIR32_X (R_H8_NONE_X + 1)
HOWTO (R_H8_DIR32,
0,
2,
32,
false,
0,
complain_overflow_dont,
special,
"R_H8_DIR32",
false,
0,
0xffffffff,
false),
#define R_H8_DIR16_X (R_H8_DIR32_X + 1)
HOWTO (R_H8_DIR16,
0,
1,
16,
false,
0,
complain_overflow_dont,
special,
"R_H8_DIR16",
false,
0,
0x0000ffff,
false),
#define R_H8_DIR8_X (R_H8_DIR16_X + 1)
HOWTO (R_H8_DIR8,
0,
0,
8,
false,
0,
complain_overflow_dont,
special,
"R_H8_DIR16",
false,
0,
0x000000ff,
false),
#define R_H8_DIR16A8_X (R_H8_DIR8_X + 1)
HOWTO (R_H8_DIR16A8,
0,
1,
16,
false,
0,
complain_overflow_bitfield,
special,
"R_H8_DIR16A8",
false,
0,
0x0000ffff,
false),
#define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1)
HOWTO (R_H8_DIR16R8,
0,
1,
16,
false,
0,
complain_overflow_bitfield,
special,
"R_H8_DIR16R8",
false,
0,
0x0000ffff,
false),
#define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1)
HOWTO (R_H8_DIR24A8,
0,
2,
24,
false,
0,
complain_overflow_bitfield,
special,
"R_H8_DIR24A8",
true,
0xff000000,
0x00ffffff,
false),
#define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1)
HOWTO (R_H8_DIR24R8,
0,
2,
24,
false,
0,
complain_overflow_bitfield,
special,
"R_H8_DIR24R8",
true,
0xff000000,
0x00ffffff,
false),
#define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1)
HOWTO (R_H8_DIR32A16,
0,
2,
32,
false,
0,
complain_overflow_dont,
special,
"R_H8_DIR32",
false,
0,
0xffffffff,
false),
#define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1)
HOWTO (R_H8_PCREL16,
0,
1,
16,
true,
0,
complain_overflow_signed,
special,
"R_H8_PCREL16",
false,
0xffff,
0xffff,
true),
#define R_H8_PCREL8_X (R_H8_PCREL16_X + 1)
HOWTO (R_H8_PCREL8,
0,
0,
8,
true,
0,
complain_overflow_signed,
special,
"R_H8_PCREL8",
false,
0xff,
0xff,
true),
};
struct elf_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char howto_index;
};
static const struct elf_reloc_map h8_reloc_map[] =
{
{ BFD_RELOC_NONE, R_H8_NONE_X },
{ BFD_RELOC_32, R_H8_DIR32_X },
{ BFD_RELOC_16, R_H8_DIR16_X },
{ BFD_RELOC_8, R_H8_DIR8_X },
{ BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X },
{ BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X },
{ BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X },
{ BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X },
{ BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X },
{ BFD_RELOC_16_PCREL, R_H8_PCREL16_X },
{ BFD_RELOC_8_PCREL, R_H8_PCREL8_X },
};
static reloc_howto_type *
elf32_h8_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
unsigned int i;
for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++)
{
if (h8_reloc_map[i].bfd_reloc_val == code)
return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index];
}
return NULL;
}
static void
elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *bfd_reloc;
Elf32_Internal_Rela *elf_reloc;
{
unsigned int r;
unsigned int i;
r = ELF32_R_TYPE (elf_reloc->r_info);
for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++)
if (h8_elf_howto_table[i].type== r)
{
bfd_reloc->howto = &h8_elf_howto_table[i];
return;
}
abort ();
}
static void
elf32_h8_info_to_howto_rel (abfd, bfd_reloc, elf_reloc)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *bfd_reloc;
Elf32_Internal_Rel *elf_reloc ATTRIBUTE_UNUSED;
{
unsigned int r;
abort ();
r = ELF32_R_TYPE (elf_reloc->r_info);
bfd_reloc->howto = &h8_elf_howto_table[r];
}
static bfd_reloc_status_type
special (abfd, reloc_entry, symbol, data, input_section, output_bfd,
error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry ATTRIBUTE_UNUSED;
asymbol *symbol ATTRIBUTE_UNUSED;
PTR data ATTRIBUTE_UNUSED;
asection *input_section ATTRIBUTE_UNUSED;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
if (output_bfd == (bfd *) NULL)
return bfd_reloc_continue;
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
static bfd_reloc_status_type
elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
input_section, contents, offset, value,
addend, info, sym_sec, is_local)
unsigned long r_type;
bfd *input_bfd;
bfd *output_bfd ATTRIBUTE_UNUSED;
asection *input_section ATTRIBUTE_UNUSED;
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;
{
bfd_byte *hit_data = contents + offset;
switch (r_type)
{
case R_H8_NONE:
return bfd_reloc_ok;
case R_H8_DIR32:
case R_H8_DIR32A16:
case R_H8_DIR24A8:
value += addend;
bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_H8_DIR16:
case R_H8_DIR16A8:
case R_H8_DIR16R8:
value += addend;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_H8_DIR8:
value += addend;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_H8_DIR24R8:
value += addend;
hit_data--;
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_H8_PCREL16:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= offset;
value += addend;
value -= 2;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_H8_PCREL8:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= offset;
value += addend;
value -= 1;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
default:
return bfd_reloc_notsupported;
}
}
static boolean
elf32_h8_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;
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++)
{
unsigned int r_type;
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 (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;
}
}
r = elf32_h8_final_link_relocate (r_type, 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;
arelent bfd_reloc;
reloc_howto_type *howto;
elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel);
howto = bfd_reloc.howto;
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, 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 unsigned long
elf32_h8_mach (flags)
flagword flags;
{
switch (flags & EF_H8_MACH)
{
case E_H8_MACH_H8300:
default:
return bfd_mach_h8300;
case E_H8_MACH_H8300H:
return bfd_mach_h8300h;
case E_H8_MACH_H8300S:
return bfd_mach_h8300s;
}
}
static void
elf32_h8_final_write_processing (abfd, linker)
bfd *abfd;
boolean linker ATTRIBUTE_UNUSED;
{
unsigned long val;
switch (bfd_get_mach (abfd))
{
default:
case bfd_mach_h8300:
val = E_H8_MACH_H8300;
break;
case bfd_mach_h8300h:
val = E_H8_MACH_H8300H;
break;
case bfd_mach_h8300s:
val = E_H8_MACH_H8300S;
break;
}
elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH);
elf_elfheader (abfd)->e_flags |= val;
}
static boolean
elf32_h8_object_p (abfd)
bfd *abfd;
{
bfd_default_set_arch_mach (abfd, bfd_arch_h8300,
elf32_h8_mach (elf_elfheader (abfd)->e_flags));
return true;
}
static boolean
elf32_h8_merge_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;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_mach (obfd) < bfd_get_mach (ibfd))
{
if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
bfd_get_mach (ibfd)))
return false;
}
return true;
}
static boolean
elf32_h8_relax_section (abfd, sec, link_info, again)
bfd *abfd;
asection *sec;
struct bfd_link_info *link_info;
boolean *again;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Rela *free_relocs = NULL;
Elf_Internal_Rela *irel, *irelend;
bfd_byte *contents = NULL;
bfd_byte *free_contents = NULL;
Elf32_External_Sym *extsyms = NULL;
Elf32_External_Sym *free_extsyms = NULL;
Elf_External_Sym_Shndx *shndx_buf = NULL;
static asection *last_input_section = NULL;
static Elf_Internal_Rela *last_reloc = NULL;
*again = false;
if (link_info->relocateable
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0
|| (sec->flags & SEC_CODE) == 0)
return true;
if (sec->_cooked_size == 0)
sec->_cooked_size = sec->_raw_size;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
internal_relocs = (_bfd_elf32_link_read_relocs
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
link_info->keep_memory));
if (internal_relocs == NULL)
goto error_return;
if (! link_info->keep_memory)
free_relocs = internal_relocs;
if (sec != last_input_section)
last_reloc = NULL;
last_input_section = sec;
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
{
bfd_vma symval;
if (irel != internal_relocs)
last_reloc = irel - 1;
if (contents == NULL)
{
if (elf_section_data (sec)->this_hdr.contents != NULL)
contents = elf_section_data (sec)->this_hdr.contents;
else
{
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
if (contents == NULL)
goto error_return;
free_contents = contents;
if (! bfd_get_section_contents (abfd, sec, contents,
(file_ptr) 0, sec->_raw_size))
goto error_return;
}
}
if (extsyms == NULL)
{
if (symtab_hdr->contents != NULL)
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
else
{
bfd_size_type amt;
amt = symtab_hdr->sh_info * sizeof (Elf32_External_Sym);
extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
if (extsyms == NULL)
goto error_return;
free_extsyms = extsyms;
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|| bfd_bread ((PTR) extsyms, amt, abfd) != amt)
goto error_return;
symtab_hdr->contents = (PTR) extsyms;
}
if (shndx_hdr->sh_size != 0)
{
bfd_size_type amt;
amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
if (shndx_buf == NULL)
goto error_return;
if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
|| bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
goto error_return;
shndx_hdr->contents = (PTR) shndx_buf;
}
}
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
Elf32_External_Sym *esym;
Elf_External_Sym_Shndx *shndx;
Elf_Internal_Sym isym;
asection *sym_sec;
esym = extsyms + ELF32_R_SYM (irel->r_info);
shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0);
bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
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);
}
switch (ELF32_R_TYPE (irel->r_info))
{
case R_H8_DIR24R8:
{
bfd_vma value = symval + irel->r_addend;
bfd_vma dot, gap;
dot = (sec->output_section->vma
+ sec->output_offset + irel->r_offset - 1);
gap = value - dot;
if ((int) gap >= -126 && (int) gap <= 130)
{
unsigned char code;
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
free_extsyms = NULL;
if ((int) gap <= 130
&& (int) gap >= -128
&& last_reloc
&& ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8
&& ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info)
{
Elf32_External_Sym *esym;
Elf_External_Sym_Shndx *shndx;
bfd_vma last_value;
asection *last_sym_sec;
Elf_Internal_Sym last_symbol;
esym = extsyms + ELF32_R_SYM (last_reloc->r_info);
shndx = shndx_buf;
if (shndx != NULL)
shndx += ELF32_R_SYM (last_reloc->r_info);
bfd_elf32_swap_symbol_in (abfd, esym, shndx, &last_symbol);
last_sym_sec
= bfd_section_from_elf_index (abfd, last_symbol.st_shndx);
last_value = (last_symbol.st_value
+ last_sym_sec->output_section->vma
+ last_sym_sec->output_offset);
if (last_value == dot + 4
&& last_reloc->r_offset + 2 == irel->r_offset
&& ! elf32_h8_symbol_address_p (abfd, sec, dot))
{
irel->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
ELF32_R_TYPE (R_H8_NONE));
last_reloc->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
ELF32_R_TYPE (R_H8_PCREL8));
last_reloc->r_addend = irel->r_addend;
code = bfd_get_8 (abfd,
contents + last_reloc->r_offset - 1);
code ^= 1;
bfd_put_8 (abfd,
code,
contents + last_reloc->r_offset - 1);
if (!elf32_h8_relax_delete_bytes (abfd, sec,
irel->r_offset - 1,
4))
goto error_return;
*again = true;
break;
}
}
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if (code == 0x5e)
bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1);
else if (code == 0x5a)
bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1);
else
abort ();
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_H8_PCREL8);
if (!elf32_h8_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = true;
}
break;
}
case R_H8_PCREL16:
{
bfd_vma value = symval + irel->r_addend;
bfd_vma dot;
bfd_vma gap;
dot = (sec->output_section->vma
+ sec->output_offset
+ irel->r_offset - 2);
gap = value - dot;
if ((int)gap >= -126 && (int)gap <= 130)
{
unsigned char code;
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
free_extsyms = NULL;
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
if (code == 0x58)
{
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
code &= 0xf0;
code >>= 4;
code |= 0x40;
bfd_put_8 (abfd, code, contents + irel->r_offset - 2);
}
else if (code == 0x5c)
bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2);
else
abort ();
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_H8_PCREL8);
irel->r_offset--;
if (!elf32_h8_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = true;
}
break;
}
case R_H8_DIR16A8:
{
bfd_vma value = symval + irel->r_addend;
if ((bfd_get_mach (abfd) == bfd_mach_h8300
&& value >= 0xff00
&& value <= 0xffff)
|| ((bfd_get_mach (abfd) == bfd_mach_h8300h
|| bfd_get_mach (abfd) == bfd_mach_h8300s)
&& value >= 0xffff00
&& value <= 0xffffff))
{
unsigned char code;
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
free_extsyms = NULL;
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
if (code != 0x6a)
abort ();
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if ((code & 0xf0) == 0x00)
bfd_put_8 (abfd,
(code & 0xf) | 0x20,
contents + irel->r_offset - 2);
else if ((code & 0xf0) == 0x80)
bfd_put_8 (abfd,
(code & 0xf) | 0x30,
contents + irel->r_offset - 2);
else
abort ();
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_H8_DIR8);
if (!elf32_h8_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = true;
}
break;
}
case R_H8_DIR24A8:
{
bfd_vma value = symval + irel->r_addend;
if ((bfd_get_mach (abfd) == bfd_mach_h8300
&& value >= 0xff00
&& value <= 0xffff)
|| ((bfd_get_mach (abfd) == bfd_mach_h8300h
|| bfd_get_mach (abfd) == bfd_mach_h8300s)
&& value >= 0xffff00
&& value <= 0xffffff))
{
unsigned char code;
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
free_extsyms = NULL;
code = bfd_get_8 (abfd, contents + irel->r_offset - 2);
if (code != 0x6a)
abort ();
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
if ((code & 0xf0) == 0x00)
bfd_put_8 (abfd,
(code & 0xf) | 0x20,
contents + irel->r_offset - 2);
else if ((code & 0xf0) == 0x80)
bfd_put_8 (abfd,
(code & 0xf) | 0x30,
contents + irel->r_offset - 2);
else
abort ();
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_H8_DIR8);
if (!elf32_h8_relax_delete_bytes (abfd, sec, irel->r_offset, 2))
goto error_return;
*again = true;
}
}
case R_H8_DIR32A16:
{
bfd_vma value = symval + irel->r_addend;
if (value <= 0x7fff || value >= 0xff8000)
{
unsigned char code;
elf_section_data (sec)->relocs = internal_relocs;
free_relocs = NULL;
elf_section_data (sec)->this_hdr.contents = contents;
free_contents = NULL;
free_extsyms = NULL;
code = bfd_get_8 (abfd, contents + irel->r_offset - 1);
code &= ~0x20;
bfd_put_8 (abfd, code, contents + irel->r_offset - 1);
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_H8_DIR16A8);
if (!elf32_h8_relax_delete_bytes (abfd, sec,
irel->r_offset + 1, 2))
goto error_return;
*again = true;
}
break;
}
default:
break;
}
}
if (free_relocs != NULL)
{
free (free_relocs);
free_relocs = NULL;
}
if (free_contents != NULL)
{
if (! link_info->keep_memory)
free (free_contents);
else
{
elf_section_data (sec)->this_hdr.contents = contents;
}
free_contents = NULL;
}
if (shndx_buf != NULL)
{
shndx_hdr->contents = NULL;
free (shndx_buf);
}
if (free_extsyms != NULL)
{
if (! link_info->keep_memory)
{
symtab_hdr->contents = NULL;
free (free_extsyms);
}
}
return true;
error_return:
if (free_relocs != NULL)
free (free_relocs);
if (free_contents != NULL)
free (free_contents);
if (shndx_buf != NULL)
{
shndx_hdr->contents = NULL;
free (shndx_buf);
}
if (free_extsyms != NULL)
{
symtab_hdr->contents = NULL;
free (free_extsyms);
}
return false;
}
static boolean
elf32_h8_relax_delete_bytes (abfd, sec, addr, count)
bfd *abfd;
asection *sec;
bfd_vma addr;
int count;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
Elf32_External_Sym *extsyms;
unsigned int sec_shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
Elf_Internal_Rela *irelalign;
bfd_vma toaddr;
Elf32_External_Sym *esym, *esymend;
Elf_External_Sym_Shndx *shndx;
struct elf_link_hash_entry **sym_hashes;
struct elf_link_hash_entry **end_hashes;
unsigned int symcount;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
contents = elf_section_data (sec)->this_hdr.contents;
irelalign = NULL;
toaddr = sec->_cooked_size;
irel = elf_section_data (sec)->relocs;
irelend = irel + sec->reloc_count;
memmove (contents + addr, contents + addr + count,
(size_t) (toaddr - addr - count));
sec->_cooked_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;
}
shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
esym = extsyms;
esymend = esym + symtab_hdr->sh_info;
for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
{
Elf_Internal_Sym isym;
Elf_External_Sym_Shndx dummy;
bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym);
if (isym.st_shndx == sec_shndx
&& isym.st_value > addr
&& isym.st_value < toaddr)
{
isym.st_value -= count;
bfd_elf32_swap_symbol_out (abfd, &isym, esym, &dummy);
}
}
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 boolean
elf32_h8_symbol_address_p (abfd, sec, addr)
bfd *abfd;
asection *sec;
bfd_vma addr;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
unsigned int sec_shndx;
Elf32_External_Sym *esym, *esymend;
Elf_External_Sym_Shndx *shndx;
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;
shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
esym = (Elf32_External_Sym *) symtab_hdr->contents;
esymend = esym + symtab_hdr->sh_info;
for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
{
Elf_Internal_Sym isym;
bfd_elf32_swap_symbol_in (abfd, esym, shndx, &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 *
elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order,
data, relocateable, symbols)
bfd *output_bfd;
struct bfd_link_info *link_info;
struct bfd_link_order *link_order;
bfd_byte *data;
boolean relocateable;
asymbol **symbols;
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *shndx_hdr;
asection *input_section = link_order->u.indirect.section;
bfd *input_bfd = input_section->owner;
asection **sections = NULL;
Elf_Internal_Rela *internal_relocs = NULL;
Elf32_External_Sym *external_syms = NULL;
Elf_External_Sym_Shndx *shndx_buf = NULL;
Elf_External_Sym_Shndx *shndx;
Elf_Internal_Sym *internal_syms = NULL;
if (relocateable
|| elf_section_data (input_section)->this_hdr.contents == NULL)
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
link_order, data,
relocateable,
symbols);
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr;
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
(size_t) input_section->_raw_size);
if ((input_section->flags & SEC_RELOC) != 0
&& input_section->reloc_count > 0)
{
Elf_Internal_Sym *isymp;
asection **secpp;
Elf32_External_Sym *esym, *esymend;
bfd_size_type amt;
if (symtab_hdr->contents != NULL)
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
else if (symtab_hdr->sh_info != 0)
{
amt = symtab_hdr->sh_info;
amt *= sizeof (Elf32_External_Sym);
external_syms = (Elf32_External_Sym *) bfd_malloc (amt);
if (external_syms == NULL)
goto error_return;
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|| bfd_bread ((PTR) external_syms, amt, input_bfd) != amt)
goto error_return;
}
if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0)
{
amt = symtab_hdr->sh_info;
amt *= sizeof (Elf_External_Sym_Shndx);
shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
if (shndx_buf == NULL)
goto error_return;
if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0
|| bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt)
goto error_return;
}
internal_relocs = (_bfd_elf32_link_read_relocs
(input_bfd, input_section, (PTR) NULL,
(Elf_Internal_Rela *) NULL, false));
if (internal_relocs == NULL)
goto error_return;
amt = symtab_hdr->sh_info;
amt *= sizeof (Elf_Internal_Sym);
internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt);
if (internal_syms == NULL && amt != 0)
goto error_return;
amt = symtab_hdr->sh_info;
amt *= sizeof (asection *);
sections = (asection **) bfd_malloc (amt);
if (sections == NULL && amt != 0)
goto error_return;
for (isymp = internal_syms, secpp = sections, shndx = shndx_buf,
esym = external_syms, esymend = esym + symtab_hdr->sh_info;
esym < esymend;
++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL))
{
asection *isec;
bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isymp);
if (isymp->st_shndx == SHN_UNDEF)
isec = bfd_und_section_ptr;
else if (isymp->st_shndx == SHN_ABS)
isec = bfd_abs_section_ptr;
else if (isymp->st_shndx == SHN_COMMON)
isec = bfd_com_section_ptr;
else
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
*secpp = isec;
}
if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd,
input_section, data, internal_relocs,
internal_syms, sections))
goto error_return;
if (sections != NULL)
free (sections);
if (internal_syms != NULL)
free (internal_syms);
if (shndx_buf != NULL)
free (shndx_buf);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
if (internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
}
return data;
error_return:
if (internal_relocs != NULL
&& internal_relocs != elf_section_data (input_section)->relocs)
free (internal_relocs);
if (shndx_buf != NULL)
free (shndx_buf);
if (external_syms != NULL && symtab_hdr->contents == NULL)
free (external_syms);
if (internal_syms != NULL)
free (internal_syms);
if (sections != NULL)
free (sections);
return NULL;
}
#define TARGET_BIG_SYM bfd_elf32_h8300_vec
#define TARGET_BIG_NAME "elf32-h8300"
#define ELF_ARCH bfd_arch_h8300
#define ELF_MACHINE_CODE EM_H8_300
#define ELF_MAXPAGESIZE 0x1
#define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup
#define elf_info_to_howto elf32_h8_info_to_howto
#define elf_info_to_howto_rel elf32_h8_info_to_howto_rel
#define elf_backend_final_write_processing \
elf32_h8_final_write_processing
#define elf_backend_object_p \
elf32_h8_object_p
#define bfd_elf32_bfd_merge_private_bfd_data \
elf32_h8_merge_private_bfd_data
#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
#define elf_backend_relocate_section elf32_h8_relocate_section
#define bfd_elf32_bfd_relax_section elf32_h8_relax_section
#define bfd_elf32_bfd_get_relocated_section_contents \
elf32_h8_get_relocated_section_contents
#include "elf32-target.h"