#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/v850.h"
#include "libiberty.h"
#define SEXT24(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000)
static reloc_howto_type *v850_elf_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void v850_elf_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static void v850_elf_info_to_howto_rela
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
static bfd_reloc_status_type v850_elf_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_boolean v850_elf_is_local_label_name
PARAMS ((bfd *, const char *));
static bfd_boolean v850_elf_relocate_section
PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static bfd_reloc_status_type v850_elf_perform_relocation
PARAMS ((bfd *, unsigned int, bfd_vma, bfd_byte *));
static bfd_boolean v850_elf_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
static void remember_hi16s_reloc
PARAMS ((bfd *, bfd_vma, bfd_byte *));
static bfd_byte * find_remembered_hi16s_reloc
PARAMS ((bfd_vma, bfd_boolean *));
static bfd_reloc_status_type v850_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 v850_elf_object_p
PARAMS ((bfd *));
static bfd_boolean v850_elf_fake_sections
PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
static void v850_elf_final_write_processing
PARAMS ((bfd *, bfd_boolean));
static bfd_boolean v850_elf_set_private_flags
PARAMS ((bfd *, flagword));
static bfd_boolean v850_elf_merge_private_bfd_data
PARAMS ((bfd *, bfd *));
static bfd_boolean v850_elf_print_private_bfd_data
PARAMS ((bfd *, PTR));
static bfd_boolean v850_elf_section_from_bfd_section
PARAMS ((bfd *, asection *, int *));
static void v850_elf_symbol_processing
PARAMS ((bfd *, asymbol *));
static bfd_boolean v850_elf_add_symbol_hook
PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
const char **, flagword *, asection **, bfd_vma *));
static bfd_boolean v850_elf_link_output_symbol_hook
PARAMS ((struct bfd_link_info *, const char *, Elf_Internal_Sym *,
asection *, struct elf_link_hash_entry *));
static bfd_boolean v850_elf_section_from_shdr
PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
static bfd_boolean v850_elf_gc_sweep_hook
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
static asection * v850_elf_gc_mark_hook
PARAMS ((asection *, struct bfd_link_info *,
Elf_Internal_Rela *, struct elf_link_hash_entry *,
Elf_Internal_Sym *));
static bfd_reloc_status_type v850_elf_ignore_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_boolean v850_elf_relax_delete_bytes
PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int));
static bfd_boolean v850_elf_relax_section
PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
static reloc_howto_type v850_elf_howto_table[] =
{
HOWTO (R_V850_NONE,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_V850_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_V850_9_PCREL,
2,
2,
26,
TRUE,
0,
complain_overflow_bitfield,
v850_elf_reloc,
"R_V850_9_PCREL",
FALSE,
0x00ffffff,
0x00ffffff,
TRUE),
HOWTO (R_V850_22_PCREL,
2,
2,
22,
TRUE,
7,
complain_overflow_signed,
v850_elf_reloc,
"R_V850_22_PCREL",
FALSE,
0x07ffff80,
0x07ffff80,
TRUE),
HOWTO (R_V850_HI16_S,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_HI16_S",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_HI16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_HI16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_LO16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_LO16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_ABS32,
0,
2,
32,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_ABS32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_V850_16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_V850_16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_8,
0,
0,
8,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_V850_8",
FALSE,
0xff,
0xff,
FALSE),
HOWTO (R_V850_SDA_16_16_OFFSET,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_SDA_16_16_OFFSET",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_SDA_15_16_OFFSET,
1,
1,
16,
FALSE,
1,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_SDA_15_16_OFFSET",
FALSE,
0xfffe,
0xfffe,
FALSE),
HOWTO (R_V850_ZDA_16_16_OFFSET,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_ZDA_16_16_OFFSET",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_ZDA_15_16_OFFSET,
1,
1,
16,
FALSE,
1,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_ZDA_15_16_OFFSET",
FALSE,
0xfffe,
0xfffe,
FALSE),
HOWTO (R_V850_TDA_6_8_OFFSET,
2,
1,
8,
FALSE,
1,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_6_8_OFFSET",
FALSE,
0x7e,
0x7e,
FALSE),
HOWTO (R_V850_TDA_7_8_OFFSET,
1,
1,
8,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_7_8_OFFSET",
FALSE,
0x7f,
0x7f,
FALSE),
HOWTO (R_V850_TDA_7_7_OFFSET,
0,
1,
7,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_7_7_OFFSET",
FALSE,
0x7f,
0x7f,
FALSE),
HOWTO (R_V850_TDA_16_16_OFFSET,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_16_16_OFFSET",
FALSE,
0xffff,
0xfff,
FALSE),
HOWTO (R_V850_TDA_4_5_OFFSET,
1,
1,
5,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_4_5_OFFSET",
FALSE,
0x0f,
0x0f,
FALSE),
HOWTO (R_V850_TDA_4_4_OFFSET,
0,
1,
4,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_TDA_4_4_OFFSET",
FALSE,
0x0f,
0x0f,
FALSE),
HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_SDA_16_16_SPLIT_OFFSET",
FALSE,
0xfffe0020,
0xfffe0020,
FALSE),
HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_ZDA_16_16_SPLIT_OFFSET",
FALSE,
0xfffe0020,
0xfffe0020,
FALSE),
HOWTO (R_V850_CALLT_6_7_OFFSET,
0,
1,
7,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_CALLT_6_7_OFFSET",
FALSE,
0x3f,
0x3f,
FALSE),
HOWTO (R_V850_CALLT_16_16_OFFSET,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_CALLT_16_16_OFFSET",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_V850_GNU_VTINHERIT,
0,
2,
0,
FALSE,
0,
complain_overflow_dont,
NULL,
"R_V850_GNU_VTINHERIT",
FALSE,
0,
0,
FALSE),
HOWTO (R_V850_GNU_VTENTRY,
0,
2,
0,
FALSE,
0,
complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn,
"R_V850_GNU_VTENTRY",
FALSE,
0,
0,
FALSE),
HOWTO (R_V850_LONGCALL,
0,
2,
32,
TRUE,
0,
complain_overflow_signed,
v850_elf_ignore_reloc,
"R_V850_LONGCALL",
FALSE,
0,
0,
TRUE),
HOWTO (R_V850_LONGJUMP,
0,
2,
32,
TRUE,
0,
complain_overflow_signed,
v850_elf_ignore_reloc,
"R_V850_LONGJUMP",
FALSE,
0,
0,
TRUE),
HOWTO (R_V850_ALIGN,
0,
1,
0,
FALSE,
0,
complain_overflow_unsigned,
v850_elf_ignore_reloc,
"R_V850_ALIGN",
FALSE,
0,
0,
TRUE),
HOWTO (R_V850_REL32,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
v850_elf_reloc,
"R_V850_REL32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
};
struct v850_elf_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned int elf_reloc_val;
};
static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
{
{ BFD_RELOC_NONE, R_V850_NONE },
{ BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
{ BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
{ BFD_RELOC_HI16_S, R_V850_HI16_S },
{ BFD_RELOC_HI16, R_V850_HI16 },
{ BFD_RELOC_LO16, R_V850_LO16 },
{ BFD_RELOC_32, R_V850_ABS32 },
{ BFD_RELOC_32_PCREL, R_V850_REL32 },
{ BFD_RELOC_16, R_V850_16 },
{ BFD_RELOC_8, R_V850_8 },
{ BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
{ BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
{ BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
{ BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
{ BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
{ BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
{ BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
{ BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
{ BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
{ BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
{ BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
{ BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
{ BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
{ BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
{ BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
{ BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
{ BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
{ BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
{ BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
};
static reloc_howto_type *
v850_elf_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
unsigned int i;
for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
if (v850_elf_reloc_map[i].bfd_reloc_val == code)
{
unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
return v850_elf_howto_table + elf_reloc_val;
}
return NULL;
}
static void
v850_elf_info_to_howto_rel (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_V850_max);
cache_ptr->howto = &v850_elf_howto_table[r_type];
}
static void
v850_elf_info_to_howto_rela (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_V850_max);
cache_ptr->howto = &v850_elf_howto_table[r_type];
}
static bfd_boolean
v850_elf_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info;
asection *sec;
const Elf_Internal_Rela *relocs;
{
bfd_boolean ret = TRUE;
bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
asection *sreloc;
enum v850_reloc_type r_type;
int other = 0;
const char *common = (const char *)0;
if (info->relocatable)
return TRUE;
#ifdef DEBUG
fprintf (stderr, "v850_elf_check_relocs called for section %s in %s\n",
bfd_get_section_name (abfd, sec),
bfd_archive_filename (abfd));
#endif
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
sreloc = NULL;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
unsigned long r_symndx;
struct elf_link_hash_entry *h;
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];
r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info);
switch (r_type)
{
default:
case R_V850_NONE:
case R_V850_9_PCREL:
case R_V850_22_PCREL:
case R_V850_HI16_S:
case R_V850_HI16:
case R_V850_LO16:
case R_V850_ABS32:
case R_V850_REL32:
case R_V850_16:
case R_V850_8:
case R_V850_CALLT_6_7_OFFSET:
case R_V850_CALLT_16_16_OFFSET:
break;
case R_V850_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
case R_V850_GNU_VTENTRY:
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
case R_V850_SDA_16_16_SPLIT_OFFSET:
case R_V850_SDA_16_16_OFFSET:
case R_V850_SDA_15_16_OFFSET:
other = V850_OTHER_SDA;
common = ".scommon";
goto small_data_common;
case R_V850_ZDA_16_16_SPLIT_OFFSET:
case R_V850_ZDA_16_16_OFFSET:
case R_V850_ZDA_15_16_OFFSET:
other = V850_OTHER_ZDA;
common = ".zcommon";
goto small_data_common;
case R_V850_TDA_4_5_OFFSET:
case R_V850_TDA_4_4_OFFSET:
case R_V850_TDA_6_8_OFFSET:
case R_V850_TDA_7_8_OFFSET:
case R_V850_TDA_7_7_OFFSET:
case R_V850_TDA_16_16_OFFSET:
other = V850_OTHER_TDA;
common = ".tcommon";
#define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
small_data_common:
if (h)
{
h->other |= other;
if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
&& (h->other & V850_OTHER_ERROR) == 0)
{
const char * msg;
static char buff[200];
switch (h->other & V850_OTHER_MASK)
{
default:
msg = _("Variable `%s' cannot occupy in multiple small data regions");
break;
case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
break;
case V850_OTHER_SDA | V850_OTHER_ZDA:
msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
break;
case V850_OTHER_SDA | V850_OTHER_TDA:
msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
break;
case V850_OTHER_ZDA | V850_OTHER_TDA:
msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
break;
}
sprintf (buff, msg, h->root.root.string);
info->callbacks->warning (info, buff, h->root.root.string,
abfd, h->root.u.def.section,
(bfd_vma) 0);
bfd_set_error (bfd_error_bad_value);
h->other |= V850_OTHER_ERROR;
ret = FALSE;
}
}
if (h && h->root.type == bfd_link_hash_common
&& h->root.u.c.p
&& !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
{
asection * section;
section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
section->flags |= SEC_IS_COMMON;
}
#ifdef DEBUG
fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
v850_elf_howto_table[ (int)r_type ].name,
(h && h->root.root.string) ? h->root.root.string : "<unknown>",
(h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
#endif
break;
}
}
return ret;
}
typedef struct hi16s_location
{
bfd_vma addend;
bfd_byte *address;
unsigned long counter;
bfd_boolean found;
struct hi16s_location *next;
}
hi16s_location;
static hi16s_location *previous_hi16s;
static hi16s_location *free_hi16s;
static unsigned long hi16s_counter;
static void
remember_hi16s_reloc (abfd, addend, address)
bfd *abfd;
bfd_vma addend;
bfd_byte *address;
{
hi16s_location * entry = NULL;
bfd_size_type amt = sizeof (* free_hi16s);
if (free_hi16s == NULL)
free_hi16s = (hi16s_location *) bfd_zalloc (abfd, amt);
entry = free_hi16s;
free_hi16s = free_hi16s->next;
entry->addend = addend;
entry->address = address;
entry->counter = hi16s_counter ++;
entry->found = FALSE;
entry->next = previous_hi16s;
previous_hi16s = entry;
if (hi16s_counter == 0)
{
for (entry = previous_hi16s; entry != NULL; entry = entry->next)
entry->counter &= 0xffff;
hi16s_counter = 0x10000;
}
return;
}
static bfd_byte *
find_remembered_hi16s_reloc (addend, already_found)
bfd_vma addend;
bfd_boolean *already_found;
{
hi16s_location *match = NULL;
hi16s_location *entry;
hi16s_location *previous = NULL;
hi16s_location *prev;
bfd_byte *addr;
for (entry = previous_hi16s; entry; entry = entry->next)
{
if (entry->addend == addend
&& (match == NULL || match->counter < entry->counter))
{
previous = prev;
match = entry;
}
prev = entry;
}
if (match == NULL)
return NULL;
addr = match->address;
if (already_found)
* already_found = match->found;
match->found = TRUE;
return addr;
}
static bfd_reloc_status_type
v850_elf_perform_relocation (abfd, r_type, addend, address)
bfd *abfd;
unsigned int r_type;
bfd_vma addend;
bfd_byte *address;
{
unsigned long insn;
bfd_signed_vma saddend = (bfd_signed_vma) addend;
switch (r_type)
{
default:
return bfd_reloc_notsupported;
case R_V850_REL32:
case R_V850_ABS32:
bfd_put_32 (abfd, addend, address);
return bfd_reloc_ok;
case R_V850_22_PCREL:
if (saddend > 0x1fffff || saddend < -0x200000)
return bfd_reloc_overflow;
if ((addend % 2) != 0)
return bfd_reloc_dangerous;
insn = bfd_get_32 (abfd, address);
insn &= ~0xfffe003f;
insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
bfd_put_32 (abfd, (bfd_vma) insn, address);
return bfd_reloc_ok;
case R_V850_9_PCREL:
if (saddend > 0xff || saddend < -0x100)
return bfd_reloc_overflow;
if ((addend % 2) != 0)
return bfd_reloc_dangerous;
insn = bfd_get_16 (abfd, address);
insn &= ~ 0xf870;
insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
break;
case R_V850_HI16:
addend += (bfd_get_16 (abfd, address) << 16);
addend = (addend >> 16);
insn = addend;
break;
case R_V850_HI16_S:
remember_hi16s_reloc (abfd, addend, address);
addend += (bfd_get_16 (abfd, address) << 16);
addend = (addend >> 16) + ((addend & 0x8000) != 0);
if (addend > 0x7fff)
addend = 0;
insn = addend;
break;
case R_V850_LO16:
{
long result;
insn = bfd_get_16 (abfd, address);
result = insn + addend;
#define BIT15_SET(x) ((x) & 0x8000)
#define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
if ((BIT15_SET (result) && ! BIT15_SET (addend))
|| (OVERFLOWS (addend, insn)
&& ((! BIT15_SET (insn)) || (BIT15_SET (addend)))))
{
bfd_boolean already_updated;
bfd_byte *hi16s_address = find_remembered_hi16s_reloc
(addend, & already_updated);
if (hi16s_address != NULL)
{
if (! already_updated)
{
insn = bfd_get_16 (abfd, hi16s_address);
insn += 1;
bfd_put_16 (abfd, (bfd_vma) insn, hi16s_address);
}
}
else
{
fprintf (stderr, _("FAILED to find previous HI16 reloc\n"));
return bfd_reloc_overflow;
}
}
insn = result & 0xffff;
break;
}
case R_V850_8:
addend += (char) bfd_get_8 (abfd, address);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7f || saddend < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (abfd, addend, address);
return bfd_reloc_ok;
case R_V850_CALLT_16_16_OFFSET:
addend += bfd_get_16 (abfd, address);
saddend = (bfd_signed_vma) addend;
if (saddend > 0xffff || saddend < 0)
return bfd_reloc_overflow;
insn = addend;
break;
case R_V850_16:
case R_V850_SDA_16_16_OFFSET:
case R_V850_ZDA_16_16_OFFSET:
case R_V850_TDA_16_16_OFFSET:
addend += bfd_get_16 (abfd, address);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7fff || saddend < -0x8000)
return bfd_reloc_overflow;
insn = addend;
break;
case R_V850_SDA_15_16_OFFSET:
case R_V850_ZDA_15_16_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += (insn & 0xfffe);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7ffe || saddend < -0x8000)
return bfd_reloc_overflow;
if (addend & 1)
return bfd_reloc_dangerous;
insn = (addend &~ (bfd_vma) 1) | (insn & 1);
break;
case R_V850_TDA_6_8_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += ((insn & 0x7e) << 1);
saddend = (bfd_signed_vma) addend;
if (saddend > 0xfc || saddend < 0)
return bfd_reloc_overflow;
if (addend & 3)
return bfd_reloc_dangerous;
insn &= 0xff81;
insn |= (addend >> 1);
break;
case R_V850_TDA_7_8_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += ((insn & 0x7f) << 1);
saddend = (bfd_signed_vma) addend;
if (saddend > 0xfe || saddend < 0)
return bfd_reloc_overflow;
if (addend & 1)
return bfd_reloc_dangerous;
insn &= 0xff80;
insn |= (addend >> 1);
break;
case R_V850_TDA_7_7_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += insn & 0x7f;
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7f || saddend < 0)
return bfd_reloc_overflow;
insn &= 0xff80;
insn |= addend;
break;
case R_V850_TDA_4_5_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += ((insn & 0xf) << 1);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x1e || saddend < 0)
return bfd_reloc_overflow;
if (addend & 1)
return bfd_reloc_dangerous;
insn &= 0xfff0;
insn |= (addend >> 1);
break;
case R_V850_TDA_4_4_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += insn & 0xf;
saddend = (bfd_signed_vma) addend;
if (saddend > 0xf || saddend < 0)
return bfd_reloc_overflow;
insn &= 0xfff0;
insn |= addend;
break;
case R_V850_ZDA_16_16_SPLIT_OFFSET:
case R_V850_SDA_16_16_SPLIT_OFFSET:
insn = bfd_get_32 (abfd, address);
addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7fff || saddend < -0x8000)
return bfd_reloc_overflow;
insn &= 0x0001ffdf;
insn |= (addend & 1) << 5;
insn |= (addend &~ (bfd_vma) 1) << 16;
bfd_put_32 (abfd, (bfd_vma) insn, address);
return bfd_reloc_ok;
case R_V850_CALLT_6_7_OFFSET:
insn = bfd_get_16 (abfd, address);
addend += ((insn & 0x3f) << 1);
saddend = (bfd_signed_vma) addend;
if (saddend > 0x7e || saddend < 0)
return bfd_reloc_overflow;
if (addend & 1)
return bfd_reloc_dangerous;
insn &= 0xff80;
insn |= (addend >> 1);
break;
case R_V850_GNU_VTINHERIT:
case R_V850_GNU_VTENTRY:
return bfd_reloc_ok;
}
bfd_put_16 (abfd, (bfd_vma) insn, address);
return bfd_reloc_ok;
}
static bfd_reloc_status_type
v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc;
asymbol *symbol;
PTR data ATTRIBUTE_UNUSED;
asection *isection;
bfd *obfd;
char **err ATTRIBUTE_UNUSED;
{
long relocation;
if (obfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& (! reloc->howto->partial_inplace
|| reloc->addend == 0))
{
reloc->address += isection->output_offset;
return bfd_reloc_ok;
}
if (bfd_is_und_section (symbol->section)
&& (symbol->flags & BSF_WEAK) == 0
&& obfd == NULL)
return bfd_reloc_undefined;
if (reloc->address > isection->_cooked_size)
return bfd_reloc_outofrange;
if (reloc->howto->pc_relative)
return bfd_reloc_ok;
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
relocation += symbol->section->output_section->vma;
relocation += symbol->section->output_offset;
relocation += reloc->addend;
#if 0
if (reloc->howto->pc_relative)
{
relocation -= isection->output_section->vma + isection->output_offset;
relocation -= reloc->address;
}
#endif
reloc->addend = relocation;
return bfd_reloc_ok;
}
static bfd_reloc_status_type
v850_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry;
asymbol *symbol ATTRIBUTE_UNUSED;
PTR data ATTRIBUTE_UNUSED;
asection *input_section;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
if (output_bfd != NULL)
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
static bfd_boolean
v850_elf_is_local_label_name (abfd, name)
bfd *abfd ATTRIBUTE_UNUSED;
const char *name;
{
return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
|| (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
}
#define bfd_reloc_gp_not_found bfd_reloc_other
#define bfd_reloc_ep_not_found bfd_reloc_continue
#define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
static bfd_reloc_status_type
v850_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;
asection *sym_sec;
int is_local ATTRIBUTE_UNUSED;
{
unsigned int r_type = howto->type;
bfd_byte *hit_data = contents + offset;
switch (r_type)
{
case R_V850_9_PCREL:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= offset;
break;
case R_V850_22_PCREL:
value -= (input_section->output_section->vma
+ input_section->output_offset
+ offset);
if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000))
return bfd_reloc_overflow;
value = SEXT24 (value);
break;
case R_V850_REL32:
value -= (input_section->output_section->vma
+ input_section->output_offset
+ offset);
break;
case R_V850_HI16_S:
case R_V850_HI16:
case R_V850_LO16:
case R_V850_16:
case R_V850_ABS32:
case R_V850_8:
break;
case R_V850_ZDA_15_16_OFFSET:
case R_V850_ZDA_16_16_OFFSET:
case R_V850_ZDA_16_16_SPLIT_OFFSET:
if (sym_sec == NULL)
return bfd_reloc_undefined;
value -= sym_sec->output_section->vma;
break;
case R_V850_SDA_15_16_OFFSET:
case R_V850_SDA_16_16_OFFSET:
case R_V850_SDA_16_16_SPLIT_OFFSET:
{
unsigned long gp;
struct bfd_link_hash_entry * h;
if (sym_sec == NULL)
return bfd_reloc_undefined;
h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
if (h == (struct bfd_link_hash_entry *) NULL
|| h->type != bfd_link_hash_defined)
return bfd_reloc_gp_not_found;
gp = (h->u.def.value
+ h->u.def.section->output_section->vma
+ h->u.def.section->output_offset);
value -= sym_sec->output_section->vma;
value -= (gp - sym_sec->output_section->vma);
}
break;
case R_V850_TDA_4_4_OFFSET:
case R_V850_TDA_4_5_OFFSET:
case R_V850_TDA_16_16_OFFSET:
case R_V850_TDA_7_7_OFFSET:
case R_V850_TDA_7_8_OFFSET:
case R_V850_TDA_6_8_OFFSET:
{
unsigned long ep;
struct bfd_link_hash_entry * h;
h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
if (h == (struct bfd_link_hash_entry *) NULL
|| h->type != bfd_link_hash_defined)
return bfd_reloc_ep_not_found;
ep = (h->u.def.value
+ h->u.def.section->output_section->vma
+ h->u.def.section->output_offset);
value -= ep;
}
break;
case R_V850_CALLT_6_7_OFFSET:
{
unsigned long ctbp;
struct bfd_link_hash_entry * h;
h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
if (h == (struct bfd_link_hash_entry *) NULL
|| h->type != bfd_link_hash_defined)
return bfd_reloc_ctbp_not_found;
ctbp = (h->u.def.value
+ h->u.def.section->output_section->vma
+ h->u.def.section->output_offset);
value -= ctbp;
}
break;
case R_V850_CALLT_16_16_OFFSET:
{
unsigned long ctbp;
struct bfd_link_hash_entry * h;
if (sym_sec == NULL)
return bfd_reloc_undefined;
h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
if (h == (struct bfd_link_hash_entry *) NULL
|| h->type != bfd_link_hash_defined)
return bfd_reloc_ctbp_not_found;
ctbp = (h->u.def.value
+ h->u.def.section->output_section->vma
+ h->u.def.section->output_offset);
value -= sym_sec->output_section->vma;
value -= (ctbp - sym_sec->output_section->vma);
}
break;
case R_V850_NONE:
case R_V850_GNU_VTINHERIT:
case R_V850_GNU_VTENTRY:
case R_V850_LONGCALL:
case R_V850_LONGJUMP:
case R_V850_ALIGN:
return bfd_reloc_ok;
default:
return bfd_reloc_notsupported;
}
return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
}
static bfd_boolean
v850_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;
Elf_Internal_Rela *relend;
if (info->relocatable)
return TRUE;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
if (sym_hashes == NULL)
{
info->callbacks->warning
(info, "no hash table available",
NULL, input_bfd, input_section, (bfd_vma) 0);
return FALSE;
}
free_hi16s = previous_hi16s;
previous_hi16s = NULL;
hi16s_counter = 0;
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_V850_GNU_VTENTRY
|| r_type == R_V850_GNU_VTINHERIT)
continue;
howto = v850_elf_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);
#if 0
{
char * name;
name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name);
name = (name == NULL) ? "<none>" : name;
fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
sec->name, name, sym->st_name,
sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend);
}
#endif
}
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);
#if 0
fprintf (stderr, "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
sec->name, h->root.root.string, h->root.u.def.value, sec->output_section->vma, sec->output_offset, relocation);
#endif
}
else if (h->root.type == bfd_link_hash_undefweak)
{
#if 0
fprintf (stderr, "undefined: sec: %s, name: %s\n",
sec->name, h->root.root.string);
#endif
relocation = 0;
}
else
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
input_section, rel->r_offset, TRUE)))
return FALSE;
#if 0
fprintf (stderr, "unknown: name: %s\n", h->root.root.string);
#endif
relocation = 0;
}
}
r = v850_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, 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 relocation");
goto common_error;
case bfd_reloc_gp_not_found:
msg = _("could not locate special linker symbol __gp");
goto common_error;
case bfd_reloc_ep_not_found:
msg = _("could not locate special linker symbol __ep");
goto common_error;
case bfd_reloc_ctbp_not_found:
msg = _("could not locate special linker symbol __ctbp");
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
v850_elf_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 asection *
v850_elf_gc_mark_hook (sec, info, rel, h, sym)
asection *sec;
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_V850_GNU_VTINHERIT:
case R_V850_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 (sec->owner, sym->st_shndx);
return NULL;
}
static bfd_boolean
v850_elf_object_p (abfd)
bfd *abfd;
{
switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
{
default:
case E_V850_ARCH:
bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850);
break;
case E_V850E_ARCH:
bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e);
break;
case E_V850E1_ARCH:
bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e1);
break;
}
return TRUE;
}
static void
v850_elf_final_write_processing (abfd, linker)
bfd *abfd;
bfd_boolean linker ATTRIBUTE_UNUSED;
{
unsigned long val;
switch (bfd_get_mach (abfd))
{
default:
case bfd_mach_v850: val = E_V850_ARCH; break;
case bfd_mach_v850e: val = E_V850E_ARCH; break;
case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
}
elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
elf_elfheader (abfd)->e_flags |= val;
}
static bfd_boolean
v850_elf_set_private_flags (abfd, flags)
bfd *abfd;
flagword flags;
{
BFD_ASSERT (!elf_flags_init (abfd)
|| elf_elfheader (abfd)->e_flags == flags);
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
return TRUE;
}
static bfd_boolean
v850_elf_merge_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
flagword out_flags;
flagword in_flags;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
in_flags = elf_elfheader (ibfd)->e_flags;
out_flags = elf_elfheader (obfd)->e_flags;
if (! elf_flags_init (obfd))
{
if (bfd_get_arch_info (ibfd)->the_default)
return TRUE;
elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_flags = in_flags;
if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
&& bfd_get_arch_info (obfd)->the_default)
return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
return TRUE;
}
if (in_flags == out_flags)
return TRUE;
if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
&& (in_flags & EF_V850_ARCH) != E_V850_ARCH)
{
if ((in_flags & EF_V850_ARCH) == E_V850E1_ARCH
&& (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
return TRUE;
if ((in_flags & EF_V850_ARCH) == E_V850E_ARCH
&& (out_flags & EF_V850_ARCH) == E_V850E1_ARCH)
{
elf_elfheader (obfd)->e_flags =
((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
return TRUE;
}
_bfd_error_handler (_("%s: Architecture mismatch with previous modules"),
bfd_archive_filename (ibfd));
}
return TRUE;
}
static bfd_boolean
v850_elf_print_private_bfd_data (abfd, ptr)
bfd *abfd;
PTR ptr;
{
FILE * file = (FILE *) ptr;
BFD_ASSERT (abfd != NULL && ptr != NULL);
_bfd_elf_print_private_bfd_data (abfd, ptr);
fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
{
default:
case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
}
fputc ('\n', file);
return TRUE;
}
static asection v850_elf_scom_section;
static asymbol v850_elf_scom_symbol;
static asymbol * v850_elf_scom_symbol_ptr;
static asection v850_elf_tcom_section;
static asymbol v850_elf_tcom_symbol;
static asymbol * v850_elf_tcom_symbol_ptr;
static asection v850_elf_zcom_section;
static asymbol v850_elf_zcom_symbol;
static asymbol * v850_elf_zcom_symbol_ptr;
static bfd_boolean
v850_elf_section_from_bfd_section (abfd, sec, retval)
bfd *abfd ATTRIBUTE_UNUSED;
asection *sec;
int *retval;
{
if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
*retval = SHN_V850_SCOMMON;
else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
*retval = SHN_V850_TCOMMON;
else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
*retval = SHN_V850_ZCOMMON;
else
return FALSE;
return TRUE;
}
static void
v850_elf_symbol_processing (abfd, asym)
bfd *abfd;
asymbol *asym;
{
elf_symbol_type * elfsym = (elf_symbol_type *) asym;
unsigned int indx;
indx = elfsym->internal_elf_sym.st_shndx;
if (indx < elf_numsections (abfd))
switch (elf_elfsections(abfd)[indx]->sh_type)
{
case SHT_V850_SCOMMON:
indx = SHN_V850_SCOMMON;
break;
case SHT_V850_TCOMMON:
indx = SHN_V850_TCOMMON;
break;
case SHT_V850_ZCOMMON:
indx = SHN_V850_ZCOMMON;
break;
default:
break;
}
switch (indx)
{
case SHN_V850_SCOMMON:
if (v850_elf_scom_section.name == NULL)
{
v850_elf_scom_section.name = ".scommon";
v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
v850_elf_scom_section.output_section = & v850_elf_scom_section;
v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
v850_elf_scom_symbol.name = ".scommon";
v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
v850_elf_scom_symbol.section = & v850_elf_scom_section;
v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
}
asym->section = & v850_elf_scom_section;
asym->value = elfsym->internal_elf_sym.st_size;
break;
case SHN_V850_TCOMMON:
if (v850_elf_tcom_section.name == NULL)
{
v850_elf_tcom_section.name = ".tcommon";
v850_elf_tcom_section.flags = SEC_IS_COMMON;
v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
v850_elf_tcom_symbol.name = ".tcommon";
v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
}
asym->section = & v850_elf_tcom_section;
asym->value = elfsym->internal_elf_sym.st_size;
break;
case SHN_V850_ZCOMMON:
if (v850_elf_zcom_section.name == NULL)
{
v850_elf_zcom_section.name = ".zcommon";
v850_elf_zcom_section.flags = SEC_IS_COMMON;
v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
v850_elf_zcom_symbol.name = ".zcommon";
v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
}
asym->section = & v850_elf_zcom_section;
asym->value = elfsym->internal_elf_sym.st_size;
break;
}
}
static bfd_boolean
v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
bfd *abfd;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
const Elf_Internal_Sym *sym;
const char **namep ATTRIBUTE_UNUSED;
flagword *flagsp ATTRIBUTE_UNUSED;
asection **secp;
bfd_vma *valp;
{
unsigned int indx = sym->st_shndx;
if (indx < elf_numsections (abfd))
switch (elf_elfsections(abfd)[indx]->sh_type)
{
case SHT_V850_SCOMMON:
indx = SHN_V850_SCOMMON;
break;
case SHT_V850_TCOMMON:
indx = SHN_V850_TCOMMON;
break;
case SHT_V850_ZCOMMON:
indx = SHN_V850_ZCOMMON;
break;
default:
break;
}
switch (indx)
{
case SHN_V850_SCOMMON:
*secp = bfd_make_section_old_way (abfd, ".scommon");
(*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
break;
case SHN_V850_TCOMMON:
*secp = bfd_make_section_old_way (abfd, ".tcommon");
(*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
break;
case SHN_V850_ZCOMMON:
*secp = bfd_make_section_old_way (abfd, ".zcommon");
(*secp)->flags |= SEC_IS_COMMON;
*valp = sym->st_size;
break;
}
return TRUE;
}
static bfd_boolean
v850_elf_link_output_symbol_hook (info, name, sym, input_sec, h)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
const char *name ATTRIBUTE_UNUSED;
Elf_Internal_Sym *sym;
asection *input_sec;
struct elf_link_hash_entry *h ATTRIBUTE_UNUSED;
{
if (sym->st_shndx == SHN_COMMON)
{
if (strcmp (input_sec->name, ".scommon") == 0)
sym->st_shndx = SHN_V850_SCOMMON;
else if (strcmp (input_sec->name, ".tcommon") == 0)
sym->st_shndx = SHN_V850_TCOMMON;
else if (strcmp (input_sec->name, ".zcommon") == 0)
sym->st_shndx = SHN_V850_ZCOMMON;
}
return TRUE;
}
static bfd_boolean
v850_elf_section_from_shdr (abfd, hdr, name)
bfd *abfd;
Elf_Internal_Shdr *hdr;
const char *name;
{
if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
return FALSE;
switch (hdr->sh_type)
{
case SHT_V850_SCOMMON:
case SHT_V850_TCOMMON:
case SHT_V850_ZCOMMON:
if (! bfd_set_section_flags (abfd, hdr->bfd_section,
(bfd_get_section_flags (abfd,
hdr->bfd_section)
| SEC_IS_COMMON)))
return FALSE;
}
return TRUE;
}
static bfd_boolean
v850_elf_fake_sections (abfd, hdr, sec)
bfd *abfd ATTRIBUTE_UNUSED;
Elf_Internal_Shdr *hdr;
asection *sec;
{
register const char * name;
name = bfd_get_section_name (abfd, sec);
if (strcmp (name, ".scommon") == 0)
{
hdr->sh_type = SHT_V850_SCOMMON;
}
else if (strcmp (name, ".tcommon") == 0)
{
hdr->sh_type = SHT_V850_TCOMMON;
}
else if (strcmp (name, ".zcommon") == 0)
hdr->sh_type = SHT_V850_ZCOMMON;
return TRUE;
}
static bfd_boolean
v850_elf_relax_delete_bytes (abfd, sec, addr, toaddr, count)
bfd *abfd;
asection *sec;
bfd_vma addr;
bfd_vma toaddr;
int count;
{
Elf_Internal_Shdr *symtab_hdr;
Elf32_External_Sym *extsyms;
Elf32_External_Sym *esym;
Elf32_External_Sym *esymend;
int index;
unsigned int sec_shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel;
Elf_Internal_Rela *irelend;
struct elf_link_hash_entry *sym_hash;
Elf_Internal_Shdr *shndx_hdr;
Elf_External_Sym_Shndx *shndx;
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;
#if (DEBUG_RELAX & 2)
fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
sec->name, addr, toaddr, count );
#endif
memmove (contents + addr, contents + addr + count,
toaddr - addr - count);
memset (contents + toaddr-count, 0, count);
irel = elf_section_data (sec)->relocs;
irelend = irel + sec->reloc_count;
shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
for (; irel < irelend; irel++)
{
bfd_vma raddr, paddr, symval;
Elf_Internal_Sym isym;
raddr = irel->r_offset;
if ((raddr >= (addr + count) && raddr < toaddr))
irel->r_offset -= count;
if (raddr >= addr && raddr < addr + count)
{
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
(int) R_V850_NONE);
continue;
}
if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
continue;
bfd_elf32_swap_symbol_in (abfd,
extsyms + ELF32_R_SYM (irel->r_info),
shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
& isym);
if (isym.st_shndx != sec_shndx)
continue;
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
{
symval = isym.st_value;
#if (DEBUG_RELAX & 2)
{
char * name = bfd_elf_string_from_elf_section
(abfd, symtab_hdr->sh_link, isym.st_name);
fprintf (stderr,
"relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
sec->name, name, isym.st_name,
sec->output_section->vma, sec->output_offset,
isym.st_value, irel->r_addend);
}
#endif
}
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);
symval = h->root.u.def.value;
#if (DEBUG_RELAX & 2)
fprintf (stderr,
"relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
sec->name, h->root.root.string, h->root.u.def.value,
sec->output_section->vma, sec->output_offset, irel->r_addend);
#endif
}
paddr = symval + irel->r_addend;
if ( (symval >= addr + count && symval < toaddr)
&& (paddr < addr + count || paddr >= toaddr))
irel->r_addend += count;
else if ( (symval < addr + count || symval >= toaddr)
&& (paddr >= addr + count && paddr < toaddr))
irel->r_addend -= count;
}
esym = extsyms;
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 + count
&& isym.st_value < toaddr)
{
isym.st_value -= count;
if (isym.st_value + isym.st_size >= toaddr)
isym.st_size += count;
bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
else if (isym.st_shndx == sec_shndx
&& isym.st_value < addr + count)
{
if (isym.st_value+isym.st_size >= addr + count
&& isym.st_value+isym.st_size < toaddr)
isym.st_size -= count;
if (isym.st_value >= addr
&& isym.st_value < addr + count)
isym.st_value = addr;
bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
}
esym = extsyms + symtab_hdr->sh_info;
esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
for (index = 0; esym < esymend; esym ++, index ++)
{
Elf_Internal_Sym isym;
bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
sym_hash = elf_sym_hashes (abfd) [index];
if (isym.st_shndx == sec_shndx
&& ((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 + count
&& (sym_hash)->root.u.def.value < toaddr)
{
if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
{
isym.st_size += count;
bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
(sym_hash)->root.u.def.value -= count;
}
else if (isym.st_shndx == sec_shndx
&& ((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 + count)
{
if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
&& (sym_hash)->root.u.def.value+isym.st_size < toaddr)
isym.st_size -= count;
if ((sym_hash)->root.u.def.value >= addr
&& (sym_hash)->root.u.def.value < addr + count)
(sym_hash)->root.u.def.value = addr;
bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
}
if (shndx)
++ shndx;
}
return TRUE;
}
#define NOP_OPCODE (0x0000)
#define MOVHI 0x0640
#define MOVHI_MASK 0x07e0
#define MOVHI_R1(insn) ((insn) & 0x1f)
#define MOVHI_R2(insn) ((insn) >> 11)
#define MOVEA 0x0620
#define MOVEA_MASK 0x07e0
#define MOVEA_R1(insn) ((insn) & 0x1f)
#define MOVEA_R2(insn) ((insn) >> 11)
#define JARL_4 0x00040780
#define JARL_4_MASK 0xFFFF07FF
#define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
#define ADD_I 0x0240
#define ADD_I_MASK 0x07e0
#define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11)
#define ADD_R2(insn) ((insn) >> 11)
#define JMP_R 0x0060
#define JMP_R_MASK 0xFFE0
#define JMP_R1(insn) ((insn) & 0x1f)
static bfd_boolean
v850_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;
Elf_Internal_Rela *irelend;
Elf_Internal_Rela *irelalign = NULL;
Elf_Internal_Sym *isymbuf = NULL;
bfd_byte *contents = NULL;
bfd_vma addr = 0;
bfd_vma toaddr;
int align_pad_size = 0;
bfd_boolean result = TRUE;
*again = FALSE;
if (link_info->relocatable
|| (sec->flags & SEC_RELOC) == 0
|| sec->reloc_count == 0)
return TRUE;
if (sec->_cooked_size == 0)
sec->_cooked_size = sec->_raw_size;
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;
while (addr < sec->_cooked_size)
{
toaddr = sec->_cooked_size;
for (irel = internal_relocs; irel < irelend; irel ++)
if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
&& irel->r_offset > addr
&& irel->r_offset < toaddr)
toaddr = irel->r_offset;
#ifdef DEBUG_RELAX
fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
addr, toaddr, align_pad_size);
#endif
if (irelalign)
{
bfd_vma alignto;
bfd_vma alignmoveto;
alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
if (alignmoveto < alignto)
{
unsigned int i;
align_pad_size = alignto - alignmoveto;
#ifdef DEBUG_RELAX
fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
alignmoveto, toaddr, align_pad_size);
#endif
if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
toaddr, align_pad_size))
goto error_return;
for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
(i + 1) < toaddr; i += 2)
bfd_put_16 (abfd, NOP_OPCODE, contents + i);
addr = alignmoveto;
}
else
align_pad_size = 0;
}
for (irel = internal_relocs; irel < irelend; irel++)
{
bfd_vma laddr;
bfd_vma addend;
bfd_vma symval;
int insn[5];
int no_match = -1;
Elf_Internal_Rela *hi_irelfn;
Elf_Internal_Rela *lo_irelfn;
Elf_Internal_Rela *irelcall;
bfd_signed_vma foff;
if (! (irel->r_offset >= addr && irel->r_offset < toaddr
&& (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
|| ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
continue;
#ifdef DEBUG_RELAX
fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
irel->r_info,
irel->r_offset,
irel->r_addend );
#endif
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;
if (! bfd_get_section_contents (abfd, sec, contents,
(file_ptr) 0, sec->_raw_size))
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;
}
laddr = irel->r_offset;
if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
{
if (laddr + 16 <= (bfd_vma) sec->_raw_size)
{
insn[0] = bfd_get_16 (abfd, contents + laddr);
insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
if ((insn[0] & MOVHI_MASK) != MOVHI
|| MOVHI_R1 (insn[0]) != 0)
no_match = 0;
if (no_match < 0
&& ((insn[1] & MOVEA_MASK) != MOVEA
|| MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
no_match = 1;
if (no_match < 0
&& (insn[2] & JARL_4_MASK) != JARL_4)
no_match = 2;
if (no_match < 0
&& ((insn[3] & ADD_I_MASK) != ADD_I
|| ADD_I5 (insn[3]) != 4
|| JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
no_match = 3;
if (no_match < 0
&& ((insn[4] & JMP_R_MASK) != JMP_R
|| MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
no_match = 4;
}
else
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
continue;
}
if (no_match >= 0)
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
continue;
}
for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
if (hi_irelfn->r_offset == laddr + 2
&& ELF32_R_TYPE (hi_irelfn->r_info)
== (int) R_V850_HI16_S)
break;
for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
if (lo_irelfn->r_offset == laddr + 6
&& ELF32_R_TYPE (lo_irelfn->r_info)
== (int) R_V850_LO16)
break;
for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
if (irelcall->r_offset == laddr + 8
&& ELF32_R_TYPE (irelcall->r_info)
== (int) R_V850_22_PCREL)
break;
if ( hi_irelfn == irelend
|| lo_irelfn == irelend
|| irelcall == irelend)
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
continue;
}
if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
{
Elf_Internal_Sym * isym;
isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
symval = isym->st_value;
}
else
{
unsigned long indx;
struct elf_link_hash_entry * h;
indx = ELF32_R_SYM (irelcall->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;
}
if (symval + irelcall->r_addend != irelcall->r_offset + 4)
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
continue;
}
if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
{
Elf_Internal_Sym *isym;
asection *sym_sec;
isym = isymbuf + ELF32_R_SYM (hi_irelfn->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 (hi_irelfn->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);
}
addend = irel->r_addend;
foff = (symval + addend
- (irel->r_offset
+ sec->output_section->vma
+ sec->output_offset
+ 4));
#ifdef DEBUG_RELAX
fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
irel->r_offset,
(irel->r_offset
+ sec->output_section->vma
+ sec->output_offset),
symval, addend, foff);
#endif
if (foff < -0x100000 || foff >= 0x100000)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (bfd_byte *) isymbuf;
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
addend = 0;
if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
bfd_put_32 (abfd,
0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
contents + irel->r_offset);
else
bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
contents + irel->r_offset);
hi_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
lo_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
irelcall->r_info =
ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
if (! v850_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 4, toaddr, 12))
goto error_return;
align_pad_size += 12;
}
else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
{
if (laddr + 10 <= (bfd_vma) sec->_raw_size)
{
insn[0] = bfd_get_16 (abfd, contents + laddr);
insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
if ((insn[0] & MOVHI_MASK) != MOVHI
|| MOVHI_R1 (insn[0]) != 0)
no_match = 0;
if (no_match < 0
&& ((insn[1] & MOVEA_MASK) != MOVEA
|| MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
no_match = 1;
if (no_match < 0
&& ((insn[2] & JMP_R_MASK) != JMP_R
|| MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
no_match = 4;
}
else
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
continue;
}
if (no_match >= 0)
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
continue;
}
for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
if (hi_irelfn->r_offset == laddr + 2
&& ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S)
break;
for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
if (lo_irelfn->r_offset == laddr + 6
&& ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16)
break;
if ( hi_irelfn == irelend
|| lo_irelfn == irelend)
{
((*_bfd_error_handler)
("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
continue;
}
if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
{
Elf_Internal_Sym * isym;
asection * sym_sec;
isym = isymbuf + ELF32_R_SYM (hi_irelfn->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);
#ifdef DEBUG_RELAX
{
char * name = bfd_elf_string_from_elf_section
(abfd, symtab_hdr->sh_link, isym->st_name);
fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
sym_sec->name, name, isym->st_name,
sym_sec->output_section->vma,
sym_sec->output_offset,
isym->st_value, irel->r_addend);
}
#endif
}
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);
#ifdef DEBUG_RELAX
fprintf (stderr,
"relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
sec->name, h->root.root.string, h->root.u.def.value,
sec->output_section->vma, sec->output_offset, irel->r_addend);
#endif
}
addend = irel->r_addend;
foff = (symval + addend
- (irel->r_offset
+ sec->output_section->vma
+ sec->output_offset
+ 4));
#ifdef DEBUG_RELAX
fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
irel->r_offset,
(irel->r_offset
+ sec->output_section->vma
+ sec->output_offset),
symval, addend, foff);
#endif
if (foff < -0x100000 || foff >= 0x100000)
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (bfd_byte *) isymbuf;
if (foff < -0x100 || foff >= 0x100)
{
irel->r_info =
ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
irel->r_addend = addend;
addend = 0;
if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
bfd_put_32 (abfd,
0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
contents + irel->r_offset);
else
bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
hi_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
lo_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
if (!v850_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 4, toaddr, 6))
goto error_return;
align_pad_size += 6;
}
else
{
irel->r_info =
ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
irel->r_addend = addend;
addend = 0;
if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
bfd_put_16 (abfd,
0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
contents + irel->r_offset);
else
bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
hi_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
lo_irelfn->r_info =
ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
if (!v850_elf_relax_delete_bytes (abfd, sec,
irel->r_offset + 2, toaddr, 8))
goto error_return;
align_pad_size += 8;
}
}
}
irelalign = NULL;
for (irel = internal_relocs; irel < irelend; irel++)
{
if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
&& irel->r_offset == toaddr)
{
irel->r_offset -= align_pad_size;
if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
irelalign = irel;
}
}
addr = toaddr;
}
if (!irelalign)
{
#ifdef DEBUG_RELAX
fprintf (stderr, "relax pad %d shorten %d -> %d\n",
align_pad_size,
sec->_cooked_size,
sec->_cooked_size - align_pad_size);
#endif
sec->_cooked_size -= align_pad_size;
}
finish:
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
if (contents != NULL
&& elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
free (contents);
if (isymbuf != NULL
&& symtab_hdr->contents != (bfd_byte *) isymbuf)
free (isymbuf);
return result;
error_return:
result = FALSE;
goto finish;
}
static struct bfd_elf_special_section const v850_elf_special_sections[]=
{
{ ".sdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_GPREL) },
{ ".rosdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC
+ SHF_V850_GPREL) },
{ ".sbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_GPREL) },
{ ".scommon", 8, -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_GPREL) },
{ ".tdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_EPREL) },
{ ".tbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_EPREL) },
{ ".tcommon", 8, -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_R0REL) },
{ ".zdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_R0REL) },
{ ".rozdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC
+ SHF_V850_R0REL) },
{ ".zbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_R0REL) },
{ ".zcommon", 8, -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
+ SHF_V850_R0REL) },
{ ".call_table_data", 16, 0, SHT_PROGBITS, (SHF_ALLOC
+ SHF_WRITE) },
{ ".call_table_text", 16, 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
+ SHF_EXECINSTR) },
{ NULL, 0, 0, 0, 0 }
};
#define TARGET_LITTLE_SYM bfd_elf32_v850_vec
#define TARGET_LITTLE_NAME "elf32-v850"
#define ELF_ARCH bfd_arch_v850
#define ELF_MACHINE_CODE EM_V850
#define ELF_MACHINE_ALT1 EM_CYGNUS_V850
#define ELF_MAXPAGESIZE 0x1000
#define elf_info_to_howto v850_elf_info_to_howto_rela
#define elf_info_to_howto_rel v850_elf_info_to_howto_rel
#define elf_backend_check_relocs v850_elf_check_relocs
#define elf_backend_relocate_section v850_elf_relocate_section
#define elf_backend_object_p v850_elf_object_p
#define elf_backend_final_write_processing v850_elf_final_write_processing
#define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
#define elf_backend_symbol_processing v850_elf_symbol_processing
#define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
#define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
#define elf_backend_section_from_shdr v850_elf_section_from_shdr
#define elf_backend_fake_sections v850_elf_fake_sections
#define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
#define elf_backend_gc_sweep_hook v850_elf_gc_sweep_hook
#define elf_backend_special_sections v850_elf_special_sections
#define elf_backend_can_gc_sections 1
#define elf_backend_rela_normal 1
#define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
#define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
#define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
#define bfd_elf32_bfd_relax_section v850_elf_relax_section
#define elf_symbol_leading_char '_'
#include "elf32-target.h"