#include "bfd.h"
#include "sysdep.h"
#include "libiberty.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/msp430.h"
#undef USE_REL
static reloc_howto_type elf_msp430_howto_table[] =
{
HOWTO (R_MSP430_NONE,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MSP430_NONE",
FALSE,
0,
0,
FALSE),
HOWTO (R_MSP430_32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MSP430_32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_MSP430_10_PCREL,
1,
1,
10,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MSP430_13_PCREL",
FALSE,
0xfff,
0xfff,
TRUE),
HOWTO (R_MSP430_16,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MSP430_16",
FALSE,
0,
0xffff,
FALSE),
HOWTO (R_MSP430_16_PCREL,
1,
1,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MSP430_16_PCREL",
FALSE,
0,
0xffff,
TRUE),
HOWTO (R_MSP430_16_BYTE,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MSP430_16_BYTE",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_MSP430_16_PCREL_BYTE,
1,
1,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MSP430_16_PCREL_BYTE",
FALSE,
0xffff,
0xffff,
TRUE),
HOWTO (R_MSP430_2X_PCREL,
1,
2,
10,
TRUE,
0,
complain_overflow_bitfield,
bfd_elf_generic_reloc,
"R_MSP430_2X_PCREL",
FALSE,
0xfff,
0xfff,
TRUE),
HOWTO (R_MSP430_RL_PCREL,
1,
1,
16,
TRUE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"R_MSP430_RL_PCREL",
FALSE,
0,
0xffff,
TRUE)
};
struct msp430_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned int elf_reloc_val;
};
static const struct msp430_reloc_map msp430_reloc_map[] =
{
{BFD_RELOC_NONE, R_MSP430_NONE},
{BFD_RELOC_32, R_MSP430_32},
{BFD_RELOC_MSP430_10_PCREL, R_MSP430_10_PCREL},
{BFD_RELOC_16, R_MSP430_16_BYTE},
{BFD_RELOC_MSP430_16_PCREL, R_MSP430_16_PCREL},
{BFD_RELOC_MSP430_16, R_MSP430_16},
{BFD_RELOC_MSP430_16_PCREL_BYTE, R_MSP430_16_PCREL_BYTE},
{BFD_RELOC_MSP430_16_BYTE, R_MSP430_16_BYTE},
{BFD_RELOC_MSP430_2X_PCREL, R_MSP430_2X_PCREL},
{BFD_RELOC_MSP430_RL_PCREL, R_MSP430_RL_PCREL}
};
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (msp430_reloc_map); i++)
if (msp430_reloc_map[i].bfd_reloc_val == code)
return &elf_msp430_howto_table[msp430_reloc_map[i].elf_reloc_val];
return NULL;
}
static void
msp430_info_to_howto_rela (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_MSP430_max);
cache_ptr->howto = &elf_msp430_howto_table[r_type];
}
static asection *
elf32_msp430_gc_mark_hook (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))
{
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
elf32_msp430_gc_sweep_hook (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 bfd_boolean
elf32_msp430_check_relocs (bfd * abfd, struct bfd_link_info * info,
asection * sec, const Elf_Internal_Rela * relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
if (info->relocatable)
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
sym_hashes_end =
sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry *h;
unsigned long r_symndx;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
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;
}
}
return TRUE;
}
static bfd_reloc_status_type
msp430_final_link_relocate (reloc_howto_type * howto, bfd * input_bfd,
asection * input_section, bfd_byte * contents,
Elf_Internal_Rela * rel, bfd_vma relocation)
{
bfd_reloc_status_type r = bfd_reloc_ok;
bfd_vma x;
bfd_signed_vma srel;
switch (howto->type)
{
case R_MSP430_10_PCREL:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= 2;
srel -= (input_section->output_section->vma +
input_section->output_offset);
if (srel & 1)
return bfd_reloc_outofrange;
srel >>= 1;
if (srel < -512 || srel > 511)
return bfd_reloc_overflow;
x = bfd_get_16 (input_bfd, contents);
x = (x & 0xfc00) | (srel & 0x3ff);
bfd_put_16 (input_bfd, x, contents);
break;
case R_MSP430_2X_PCREL:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= 2;
srel -= (input_section->output_section->vma +
input_section->output_offset);
if (srel & 1)
return bfd_reloc_outofrange;
srel >>= 1;
if (srel < -512 || srel > 511)
return bfd_reloc_overflow;
x = bfd_get_16 (input_bfd, contents);
x = (x & 0xfc00) | (srel & 0x3ff);
bfd_put_16 (input_bfd, x, contents);
x = bfd_get_16 (input_bfd, contents - 2);
srel += 1;
x = (x & 0xfc00) | (srel & 0x3ff);
bfd_put_16 (input_bfd, x, contents - 2);
break;
case R_MSP430_16_PCREL:
case R_MSP430_RL_PCREL:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= (input_section->output_section->vma +
input_section->output_offset);
if (srel & 1)
return bfd_reloc_outofrange;
bfd_put_16 (input_bfd, srel & 0xffff, contents);
break;
case R_MSP430_16_PCREL_BYTE:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= (input_section->output_section->vma +
input_section->output_offset);
bfd_put_16 (input_bfd, srel & 0xffff, contents);
break;
case R_MSP430_16_BYTE:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
bfd_put_16 (input_bfd, srel & 0xffff, contents);
break;
case R_MSP430_16:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
if (srel & 1)
return bfd_reloc_notsupported;
bfd_put_16 (input_bfd, srel & 0xffff, contents);
break;
default:
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
}
return r;
}
static bfd_boolean
elf32_msp430_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info,
bfd * input_bfd,
asection * input_section,
bfd_byte * contents,
Elf_Internal_Rela * relocs,
Elf_Internal_Sym * local_syms,
asection ** local_sections)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel++)
{
reloc_howto_type *howto;
unsigned long r_symndx;
Elf_Internal_Sym *sym;
asection *sec;
struct elf_link_hash_entry *h;
bfd_vma relocation;
bfd_reloc_status_type r;
const char *name = NULL;
int r_type;
r_type = ELF32_R_TYPE (rel->r_info);
r_symndx = ELF32_R_SYM (rel->r_info);
howto = elf_msp430_howto_table + ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
}
else
{
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 = msp430_final_link_relocate (howto, input_bfd, input_section,
contents, rel, relocation);
if (r != bfd_reloc_ok)
{
const char *msg = (const char *) NULL;
switch (r)
{
case bfd_reloc_overflow:
r = info->callbacks->reloc_overflow
(info, (h ? &h->root : NULL), name, howto->name,
(bfd_vma) 0, input_bfd, input_section,
rel->r_offset);
break;
case bfd_reloc_undefined:
r = info->callbacks->undefined_symbol
(info, name, input_bfd, input_section, rel->r_offset, TRUE);
break;
case bfd_reloc_outofrange:
msg = _("internal error: out of range error");
break;
case bfd_reloc_notsupported:
msg = _("internal error: unsupported relocation error");
break;
case bfd_reloc_dangerous:
msg = _("internal error: dangerous relocation");
break;
default:
msg = _("internal error: unknown error");
break;
}
if (msg)
r = info->callbacks->warning
(info, msg, name, input_bfd, input_section, rel->r_offset);
if (!r)
return FALSE;
}
}
return TRUE;
}
static void
bfd_elf_msp430_final_write_processing (bfd * abfd,
bfd_boolean linker ATTRIBUTE_UNUSED)
{
unsigned long val;
switch (bfd_get_mach (abfd))
{
default:
case bfd_mach_msp110:
val = E_MSP430_MACH_MSP430x11x1;
break;
case bfd_mach_msp11:
val = E_MSP430_MACH_MSP430x11;
break;
case bfd_mach_msp12:
val = E_MSP430_MACH_MSP430x12;
break;
case bfd_mach_msp13:
val = E_MSP430_MACH_MSP430x13;
break;
case bfd_mach_msp14:
val = E_MSP430_MACH_MSP430x14;
break;
case bfd_mach_msp15:
val = E_MSP430_MACH_MSP430x15;
break;
case bfd_mach_msp16:
val = E_MSP430_MACH_MSP430x16;
break;
case bfd_mach_msp31:
val = E_MSP430_MACH_MSP430x31;
break;
case bfd_mach_msp32:
val = E_MSP430_MACH_MSP430x32;
break;
case bfd_mach_msp33:
val = E_MSP430_MACH_MSP430x33;
break;
case bfd_mach_msp41:
val = E_MSP430_MACH_MSP430x41;
break;
case bfd_mach_msp42:
val = E_MSP430_MACH_MSP430x42;
break;
case bfd_mach_msp43:
val = E_MSP430_MACH_MSP430x43;
break;
case bfd_mach_msp44:
val = E_MSP430_MACH_MSP430x44;
break;
}
elf_elfheader (abfd)->e_machine = EM_MSP430;
elf_elfheader (abfd)->e_flags &= ~EF_MSP430_MACH;
elf_elfheader (abfd)->e_flags |= val;
}
static bfd_boolean
elf32_msp430_object_p (bfd * abfd)
{
int e_set = bfd_mach_msp14;
if (elf_elfheader (abfd)->e_machine == EM_MSP430
|| elf_elfheader (abfd)->e_machine == EM_MSP430_OLD)
{
int e_mach = elf_elfheader (abfd)->e_flags & EF_MSP430_MACH;
switch (e_mach)
{
default:
case E_MSP430_MACH_MSP430x11:
e_set = bfd_mach_msp11;
break;
case E_MSP430_MACH_MSP430x11x1:
e_set = bfd_mach_msp110;
break;
case E_MSP430_MACH_MSP430x12:
e_set = bfd_mach_msp12;
break;
case E_MSP430_MACH_MSP430x13:
e_set = bfd_mach_msp13;
break;
case E_MSP430_MACH_MSP430x14:
e_set = bfd_mach_msp14;
break;
case E_MSP430_MACH_MSP430x15:
e_set = bfd_mach_msp15;
break;
case E_MSP430_MACH_MSP430x16:
e_set = bfd_mach_msp16;
break;
case E_MSP430_MACH_MSP430x31:
e_set = bfd_mach_msp31;
break;
case E_MSP430_MACH_MSP430x32:
e_set = bfd_mach_msp32;
break;
case E_MSP430_MACH_MSP430x33:
e_set = bfd_mach_msp33;
break;
case E_MSP430_MACH_MSP430x41:
e_set = bfd_mach_msp41;
break;
case E_MSP430_MACH_MSP430x42:
e_set = bfd_mach_msp42;
break;
case E_MSP430_MACH_MSP430x43:
e_set = bfd_mach_msp43;
break;
case E_MSP430_MACH_MSP430x44:
e_set = bfd_mach_msp44;
break;
}
}
return bfd_default_set_arch_mach (abfd, bfd_arch_msp430, e_set);
}
static void
elf32_msp430_post_process_headers (bfd * abfd,
struct bfd_link_info * link_info ATTRIBUTE_UNUSED)
{
Elf_Internal_Ehdr * i_ehdrp;
i_ehdrp = elf_elfheader (abfd);
#ifndef ELFOSABI_STANDALONE
#define ELFOSABI_STANDALONE 255
#endif
i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_STANDALONE;
}
#define NUMB_RELAX_CODES 12
static struct rcodes_s
{
int f0, f1;
int t0, t1;
int labels;
int cdx;
int bs;
int off;
int ncl;
} rcode[] =
{
{ 0x0000, 0x0000, 0x3c00, 0x0000, 1, 0, 2, 2, 2},
{ 0x0000, 0x2002, 0x2400, 0x0000, 1, 1, 4, 4, 2},
{ 0x0000, 0x2402, 0x2000, 0x0000, 1, 1, 4, 4, 2},
{ 0x0000, 0x3402, 0x3800, 0x0000, 1, 1, 4, 4, 2},
{ 0x0000, 0x2c02, 0x2800, 0x0000, 1, 1, 4, 4, 2},
{ 0x0000, 0x3802, 0x3400, 0x0000, 1, 1, 4, 4, 2},
{ 0x0000, 0x2802, 0x2c00, 0x0000, 1, 1, 4, 4, 2},
{ 0x3001, 0x3c02, 0x3000, 0x0000, 1, 2, 6, 6, 2},
{ 0x2403, 0x3802, 0x2401, 0x3400, 2, 2, 4, 6, 4},
{ 0x2403, 0x2802, 0x2401, 0x2c00, 2, 2, 4, 6, 4},
{ 0x2401, 0x2c02, 0x2400, 0x2800, 3, 2, 4, 6, 4},
{ 0x2401, 0x2c02, 0x2400, 0x2800, 3, 2, 4, 6, 4},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0}
};
static bfd_boolean
msp430_elf_symbol_address_p (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_boolean
msp430_elf_relax_delete_bytes (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;
Elf_Internal_Rela *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;
symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
isym = (Elf_Internal_Sym *) symtab_hdr->contents;
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
{
int sidx = ELF32_R_SYM(irel->r_info);
Elf_Internal_Sym *lsym = isym + sidx;
if ((irel->r_offset > addr && irel->r_offset < toaddr))
irel->r_offset -= count;
if (irel->r_addend > addr && irel->r_addend < toaddr
&& lsym->st_shndx == sec_shndx)
irel->r_addend -= 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
msp430_elf_relax_section (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;
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, NULL, 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_MSP430_RL_PCREL)
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_MSP430_RL_PCREL)
{
bfd_vma value = symval;
value -= (sec->output_section->vma + sec->output_offset);
value -= irel->r_offset;
value += irel->r_addend;
if ((long) value < 1016 && (long) value > -1016)
{
int code0 = 0, code1 = 0, code2 = 0;
int i;
struct rcodes_s *rx;
if (irel->r_offset >= 6)
code0 = bfd_get_16 (abfd, contents + irel->r_offset - 6);
if (irel->r_offset >= 4)
code1 = bfd_get_16 (abfd, contents + irel->r_offset - 4);
code2 = bfd_get_16 (abfd, contents + irel->r_offset - 2);
if (code2 != 0x4010)
continue;
for (i = NUMB_RELAX_CODES - 1; i >= 0; i--)
{
rx = &rcode[i];
if (rx->cdx == 2 && rx->f0 == code0 && rx->f1 == code1)
break;
else if (rx->cdx == 1 && rx->f1 == code1)
break;
else if (rx->cdx == 0)
break;
}
if (rx->cdx > 0
&& msp430_elf_symbol_address_p (abfd, sec, isymbuf,
irel->r_offset - 2))
continue;
if (rx->cdx > 1
&& msp430_elf_symbol_address_p (abfd, sec, isymbuf,
irel->r_offset - 4))
continue;
elf_section_data (sec)->relocs = internal_relocs;
elf_section_data (sec)->this_hdr.contents = contents;
symtab_hdr->contents = (unsigned char *) isymbuf;
if (rx->labels == 3)
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MSP430_2X_PCREL);
else
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
R_MSP430_10_PCREL);
bfd_put_16 (abfd, rx->t0, contents + irel->r_offset - rx->off);
if (rx->t1)
bfd_put_16 (abfd, rx->t1,
contents + irel->r_offset - rx->off + 2);
if (!msp430_elf_relax_delete_bytes (abfd, sec,
irel->r_offset - rx->off +
rx->ncl, rx->bs))
goto error_return;
if (rx->cdx == 0)
irel->r_offset -= 2;
*again = TRUE;
}
}
}
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;
}
#define ELF_ARCH bfd_arch_msp430
#define ELF_MACHINE_CODE EM_MSP430
#define ELF_MACHINE_ALT1 EM_MSP430_OLD
#define ELF_MAXPAGESIZE 1
#define TARGET_LITTLE_SYM bfd_elf32_msp430_vec
#define TARGET_LITTLE_NAME "elf32-msp430"
#define elf_info_to_howto msp430_info_to_howto_rela
#define elf_info_to_howto_rel NULL
#define elf_backend_relocate_section elf32_msp430_relocate_section
#define elf_backend_gc_mark_hook elf32_msp430_gc_mark_hook
#define elf_backend_gc_sweep_hook elf32_msp430_gc_sweep_hook
#define elf_backend_check_relocs elf32_msp430_check_relocs
#define elf_backend_can_gc_sections 1
#define elf_backend_final_write_processing bfd_elf_msp430_final_write_processing
#define elf_backend_object_p elf32_msp430_object_p
#define elf_backend_post_process_headers elf32_msp430_post_process_headers
#define bfd_elf32_bfd_relax_section msp430_elf_relax_section
#include "elf32-target.h"