#include "bfd.h"
#include "sysdep.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "coff/internal.h"
#include "coff/sym.h"
#include "coff/symconst.h"
#include "coff/ecoff.h"
#include "coff/mips.h"
#include "libcoff.h"
#include "libecoff.h"
static bfd_boolean mips_ecoff_bad_format_hook
PARAMS ((bfd *abfd, PTR filehdr));
static void mips_ecoff_swap_reloc_in
PARAMS ((bfd *, PTR, struct internal_reloc *));
static void mips_ecoff_swap_reloc_out
PARAMS ((bfd *, const struct internal_reloc *, PTR));
static void mips_adjust_reloc_in
PARAMS ((bfd *, const struct internal_reloc *, arelent *));
static void mips_adjust_reloc_out
PARAMS ((bfd *, const arelent *, struct internal_reloc *));
static bfd_reloc_status_type mips_generic_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_refhi_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_reflo_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_gprel_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_relhi_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_rello_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static bfd_reloc_status_type mips_switch_reloc
PARAMS ((bfd *abfd, arelent *reloc, asymbol *symbol, PTR data,
asection *section, bfd *output_bfd, char **error));
static void mips_relocate_hi
PARAMS ((struct internal_reloc *refhi, struct internal_reloc *reflo,
bfd *input_bfd, asection *input_section, bfd_byte *contents,
size_t adjust, bfd_vma relocation, bfd_boolean pcrel));
static bfd_boolean mips_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, PTR));
static bfd_boolean mips_read_relocs
PARAMS ((bfd *, asection *));
static bfd_boolean mips_relax_section
PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
static bfd_boolean mips_relax_pcrel16
PARAMS ((struct bfd_link_info *, bfd *, asection *,
struct ecoff_link_hash_entry *, bfd_byte *, bfd_vma));
static reloc_howto_type *mips_bfd_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
#define MIPSECOFF
#define NO_COFF_RELOCS
#define NO_COFF_SYMBOLS
#define NO_COFF_LINENOS
#define coff_swap_filehdr_in mips_ecoff_swap_filehdr_in
#define coff_swap_filehdr_out mips_ecoff_swap_filehdr_out
#define coff_swap_aouthdr_in mips_ecoff_swap_aouthdr_in
#define coff_swap_aouthdr_out mips_ecoff_swap_aouthdr_out
#define coff_swap_scnhdr_in mips_ecoff_swap_scnhdr_in
#define coff_swap_scnhdr_out mips_ecoff_swap_scnhdr_out
#include "coffswap.h"
#define ECOFF_32
#include "ecoffswap.h"
static reloc_howto_type mips_howto_table[] =
{
HOWTO (MIPS_R_IGNORE,
0,
0,
8,
FALSE,
0,
complain_overflow_dont,
0,
"IGNORE",
FALSE,
0,
0,
FALSE),
HOWTO (MIPS_R_REFHALF,
0,
1,
16,
FALSE,
0,
complain_overflow_bitfield,
mips_generic_reloc,
"REFHALF",
TRUE,
0xffff,
0xffff,
FALSE),
HOWTO (MIPS_R_REFWORD,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
mips_generic_reloc,
"REFWORD",
TRUE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (MIPS_R_JMPADDR,
2,
2,
26,
FALSE,
0,
complain_overflow_dont,
mips_generic_reloc,
"JMPADDR",
TRUE,
0x3ffffff,
0x3ffffff,
FALSE),
HOWTO (MIPS_R_REFHI,
16,
2,
16,
FALSE,
0,
complain_overflow_bitfield,
mips_refhi_reloc,
"REFHI",
TRUE,
0xffff,
0xffff,
FALSE),
HOWTO (MIPS_R_REFLO,
0,
2,
16,
FALSE,
0,
complain_overflow_dont,
mips_reflo_reloc,
"REFLO",
TRUE,
0xffff,
0xffff,
FALSE),
HOWTO (MIPS_R_GPREL,
0,
2,
16,
FALSE,
0,
complain_overflow_signed,
mips_gprel_reloc,
"GPREL",
TRUE,
0xffff,
0xffff,
FALSE),
HOWTO (MIPS_R_LITERAL,
0,
2,
16,
FALSE,
0,
complain_overflow_signed,
mips_gprel_reloc,
"LITERAL",
TRUE,
0xffff,
0xffff,
FALSE),
EMPTY_HOWTO (8),
EMPTY_HOWTO (9),
EMPTY_HOWTO (10),
EMPTY_HOWTO (11),
HOWTO (MIPS_R_PCREL16,
2,
2,
16,
TRUE,
0,
complain_overflow_signed,
mips_generic_reloc,
"PCREL16",
TRUE,
0xffff,
0xffff,
TRUE),
HOWTO (MIPS_R_RELHI,
16,
2,
16,
TRUE,
0,
complain_overflow_bitfield,
mips_relhi_reloc,
"RELHI",
TRUE,
0xffff,
0xffff,
TRUE),
HOWTO (MIPS_R_RELLO,
0,
2,
16,
TRUE,
0,
complain_overflow_dont,
mips_rello_reloc,
"RELLO",
TRUE,
0xffff,
0xffff,
TRUE),
EMPTY_HOWTO (15),
EMPTY_HOWTO (16),
EMPTY_HOWTO (17),
EMPTY_HOWTO (18),
EMPTY_HOWTO (19),
EMPTY_HOWTO (20),
EMPTY_HOWTO (21),
HOWTO (MIPS_R_SWITCH,
0,
2,
32,
TRUE,
0,
complain_overflow_dont,
mips_switch_reloc,
"SWITCH",
TRUE,
0xffffffff,
0xffffffff,
TRUE)
};
#define MIPS_HOWTO_COUNT \
(sizeof mips_howto_table / sizeof mips_howto_table[0])
#define PCREL16_EXPANSION_ADJUSTMENT (4 * 4)
static bfd_boolean
mips_ecoff_bad_format_hook (abfd, filehdr)
bfd *abfd;
PTR filehdr;
{
struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
switch (internal_f->f_magic)
{
case MIPS_MAGIC_1:
return TRUE;
case MIPS_MAGIC_BIG:
case MIPS_MAGIC_BIG2:
case MIPS_MAGIC_BIG3:
return bfd_big_endian (abfd);
case MIPS_MAGIC_LITTLE:
case MIPS_MAGIC_LITTLE2:
case MIPS_MAGIC_LITTLE3:
return bfd_little_endian (abfd);
default:
return FALSE;
}
}
static void
mips_ecoff_swap_reloc_in (abfd, ext_ptr, intern)
bfd *abfd;
PTR ext_ptr;
struct internal_reloc *intern;
{
const RELOC *ext = (RELOC *) ext_ptr;
intern->r_vaddr = H_GET_32 (abfd, ext->r_vaddr);
if (bfd_header_big_endian (abfd))
{
intern->r_symndx = (((int) ext->r_bits[0]
<< RELOC_BITS0_SYMNDX_SH_LEFT_BIG)
| ((int) ext->r_bits[1]
<< RELOC_BITS1_SYMNDX_SH_LEFT_BIG)
| ((int) ext->r_bits[2]
<< RELOC_BITS2_SYMNDX_SH_LEFT_BIG));
intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG)
>> RELOC_BITS3_TYPE_SH_BIG);
intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0;
}
else
{
intern->r_symndx = (((int) ext->r_bits[0]
<< RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE)
| ((int) ext->r_bits[1]
<< RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE)
| ((int) ext->r_bits[2]
<< RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE));
intern->r_type = (((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE)
>> RELOC_BITS3_TYPE_SH_LITTLE)
| ((ext->r_bits[3] & RELOC_BITS3_TYPEHI_LITTLE)
<< RELOC_BITS3_TYPEHI_SH_LITTLE));
intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0;
}
if (intern->r_type == MIPS_R_SWITCH
|| (! intern->r_extern
&& (intern->r_type == MIPS_R_RELLO
|| intern->r_type == MIPS_R_RELHI)))
{
BFD_ASSERT (! intern->r_extern);
intern->r_offset = intern->r_symndx;
if (intern->r_offset & 0x800000)
intern->r_offset -= 0x1000000;
intern->r_symndx = RELOC_SECTION_TEXT;
}
}
static void
mips_ecoff_swap_reloc_out (abfd, intern, dst)
bfd *abfd;
const struct internal_reloc *intern;
PTR dst;
{
RELOC *ext = (RELOC *) dst;
long r_symndx;
BFD_ASSERT (intern->r_extern
|| (intern->r_symndx >= 0 && intern->r_symndx <= 12));
if (intern->r_type != MIPS_R_SWITCH
&& (intern->r_extern
|| (intern->r_type != MIPS_R_RELHI
&& intern->r_type != MIPS_R_RELLO)))
r_symndx = intern->r_symndx;
else
{
BFD_ASSERT (intern->r_symndx == RELOC_SECTION_TEXT);
r_symndx = intern->r_offset & 0xffffff;
}
H_PUT_32 (abfd, intern->r_vaddr, ext->r_vaddr);
if (bfd_header_big_endian (abfd))
{
ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG;
ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG;
ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG;
ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG)
& RELOC_BITS3_TYPE_BIG)
| (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0));
}
else
{
ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE;
ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE;
ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE;
ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE)
& RELOC_BITS3_TYPE_LITTLE)
| ((intern->r_type >> RELOC_BITS3_TYPEHI_SH_LITTLE
& RELOC_BITS3_TYPEHI_LITTLE))
| (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0));
}
}
static void
mips_adjust_reloc_in (abfd, intern, rptr)
bfd *abfd;
const struct internal_reloc *intern;
arelent *rptr;
{
if (intern->r_type > MIPS_R_SWITCH)
abort ();
if (! intern->r_extern
&& (intern->r_type == MIPS_R_GPREL
|| intern->r_type == MIPS_R_LITERAL))
rptr->addend += ecoff_data (abfd)->gp;
if (intern->r_type == MIPS_R_IGNORE)
rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
if (intern->r_type == MIPS_R_SWITCH
|| (! intern->r_extern
&& (intern->r_type == MIPS_R_RELHI
|| intern->r_type == MIPS_R_RELLO)))
rptr->addend = intern->r_offset;
rptr->howto = &mips_howto_table[intern->r_type];
}
static void
mips_adjust_reloc_out (abfd, rel, intern)
bfd *abfd ATTRIBUTE_UNUSED;
const arelent *rel;
struct internal_reloc *intern;
{
if (intern->r_type == MIPS_R_SWITCH
|| (! intern->r_extern
&& (intern->r_type == MIPS_R_RELHI
|| intern->r_type == MIPS_R_RELLO)))
intern->r_offset = rel->addend;
}
static bfd_reloc_status_type
mips_generic_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry;
asymbol *symbol;
PTR data ATTRIBUTE_UNUSED;
asection *input_section;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
return bfd_reloc_continue;
}
struct mips_hi
{
struct mips_hi *next;
bfd_byte *addr;
bfd_vma addend;
};
static struct mips_hi *mips_refhi_list;
static bfd_reloc_status_type
mips_refhi_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
bfd_reloc_status_type ret;
bfd_vma relocation;
struct mips_hi *n;
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
ret = bfd_reloc_ok;
if (bfd_is_und_section (symbol->section)
&& output_bfd == (bfd *) NULL)
ret = bfd_reloc_undefined;
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_entry->addend;
if (reloc_entry->address > input_section->_cooked_size)
return bfd_reloc_outofrange;
n = (struct mips_hi *) bfd_malloc ((bfd_size_type) sizeof *n);
if (n == NULL)
return bfd_reloc_outofrange;
n->addr = (bfd_byte *) data + reloc_entry->address;
n->addend = relocation;
n->next = mips_refhi_list;
mips_refhi_list = n;
if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;
return ret;
}
static bfd_reloc_status_type
mips_reflo_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
if (mips_refhi_list != NULL)
{
struct mips_hi *l;
l = mips_refhi_list;
while (l != NULL)
{
unsigned long insn;
unsigned long val;
unsigned long vallo;
struct mips_hi *next;
insn = bfd_get_32 (abfd, l->addr);
vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
& 0xffff);
val = ((insn & 0xffff) << 16) + vallo;
val += l->addend;
if ((vallo & 0x8000) != 0)
val -= 0x10000;
if ((val & 0x8000) != 0)
val += 0x10000;
insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff);
bfd_put_32 (abfd, (bfd_vma) insn, l->addr);
next = l->next;
free (l);
l = next;
}
mips_refhi_list = NULL;
}
return mips_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
}
static bfd_reloc_status_type
mips_gprel_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
bfd_boolean relocateable;
bfd_vma gp;
bfd_vma relocation;
unsigned long val;
unsigned long insn;
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if (output_bfd != (bfd *) NULL)
relocateable = TRUE;
else
{
relocateable = FALSE;
output_bfd = symbol->section->output_section->owner;
}
if (bfd_is_und_section (symbol->section) && ! relocateable)
return bfd_reloc_undefined;
gp = _bfd_get_gp_value (output_bfd);
if (gp == 0
&& (! relocateable
|| (symbol->flags & BSF_SECTION_SYM) != 0))
{
if (relocateable)
{
gp = symbol->section->output_section->vma + 0x4000;
_bfd_set_gp_value (output_bfd, gp);
}
else
{
unsigned int count;
asymbol **sym;
unsigned int i;
count = bfd_get_symcount (output_bfd);
sym = bfd_get_outsymbols (output_bfd);
if (sym == (asymbol **) NULL)
i = count;
else
{
for (i = 0; i < count; i++, sym++)
{
register const char *name;
name = bfd_asymbol_name (*sym);
if (*name == '_' && strcmp (name, "_gp") == 0)
{
gp = bfd_asymbol_value (*sym);
_bfd_set_gp_value (output_bfd, gp);
break;
}
}
}
if (i >= count)
{
gp = 4;
_bfd_set_gp_value (output_bfd, gp);
*error_message =
(char *) _("GP relative relocation when _gp not defined");
return bfd_reloc_dangerous;
}
}
}
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
relocation += symbol->section->output_section->vma;
relocation += symbol->section->output_offset;
if (reloc_entry->address > input_section->_cooked_size)
return bfd_reloc_outofrange;
insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
if (val & 0x8000)
val -= 0x10000;
if (! relocateable
|| (symbol->flags & BSF_SECTION_SYM) != 0)
val += relocation - gp;
insn = (insn &~ (unsigned) 0xffff) | (val & 0xffff);
bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + reloc_entry->address);
if (relocateable)
reloc_entry->address += input_section->output_offset;
if ((long) val >= 0x8000 || (long) val < -0x8000)
return bfd_reloc_overflow;
return bfd_reloc_ok;
}
static struct mips_hi *mips_relhi_list;
static bfd_reloc_status_type
mips_relhi_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
bfd_reloc_status_type ret;
bfd_vma relocation;
struct mips_hi *n;
if ((symbol->flags & BSF_SECTION_SYM) != 0)
{
if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if (output_bfd != (bfd *) NULL)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
ret = bfd_reloc_ok;
if (bfd_is_und_section (symbol->section)
&& output_bfd == (bfd *) NULL)
ret = bfd_reloc_undefined;
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_entry->addend;
if (reloc_entry->address > input_section->_cooked_size)
return bfd_reloc_outofrange;
n = (struct mips_hi *) bfd_malloc ((bfd_size_type) sizeof *n);
if (n == NULL)
return bfd_reloc_outofrange;
n->addr = (bfd_byte *) data + reloc_entry->address;
n->addend = relocation;
n->next = mips_relhi_list;
mips_relhi_list = n;
if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;
return ret;
}
static bfd_reloc_status_type
mips_rello_reloc (abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd,
error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
if (mips_relhi_list != NULL)
{
struct mips_hi *l;
l = mips_relhi_list;
while (l != NULL)
{
unsigned long insn;
unsigned long val;
unsigned long vallo;
struct mips_hi *next;
insn = bfd_get_32 (abfd, l->addr);
vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
& 0xffff);
val = ((insn & 0xffff) << 16) + vallo;
val += l->addend;
if (! bfd_is_und_section (bfd_get_section (symbol))
&& ! bfd_is_com_section (bfd_get_section (symbol)))
val -= (input_section->output_section->vma
+ input_section->output_offset
+ reloc_entry->address);
if ((vallo & 0x8000) != 0)
val -= 0x10000;
if ((val & 0x8000) != 0)
val += 0x10000;
insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff);
bfd_put_32 (abfd, (bfd_vma) insn, l->addr);
next = l->next;
free (l);
l = next;
}
mips_relhi_list = NULL;
}
if ((symbol->flags & BSF_SECTION_SYM) != 0)
{
if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if (output_bfd != (bfd *) NULL)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
return mips_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
}
static bfd_reloc_status_type
mips_switch_reloc (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 ATTRIBUTE_UNUSED;
char **error_message ATTRIBUTE_UNUSED;
{
return bfd_reloc_ok;
}
static reloc_howto_type *
mips_bfd_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
int mips_type;
switch (code)
{
case BFD_RELOC_16:
mips_type = MIPS_R_REFHALF;
break;
case BFD_RELOC_32:
case BFD_RELOC_CTOR:
mips_type = MIPS_R_REFWORD;
break;
case BFD_RELOC_MIPS_JMP:
mips_type = MIPS_R_JMPADDR;
break;
case BFD_RELOC_HI16_S:
mips_type = MIPS_R_REFHI;
break;
case BFD_RELOC_LO16:
mips_type = MIPS_R_REFLO;
break;
case BFD_RELOC_GPREL16:
mips_type = MIPS_R_GPREL;
break;
case BFD_RELOC_MIPS_LITERAL:
mips_type = MIPS_R_LITERAL;
break;
case BFD_RELOC_16_PCREL_S2:
mips_type = MIPS_R_PCREL16;
break;
case BFD_RELOC_PCREL_HI16_S:
mips_type = MIPS_R_RELHI;
break;
case BFD_RELOC_PCREL_LO16:
mips_type = MIPS_R_RELLO;
break;
case BFD_RELOC_GPREL32:
mips_type = MIPS_R_SWITCH;
break;
default:
return (reloc_howto_type *) NULL;
}
return &mips_howto_table[mips_type];
}
static void
mips_relocate_hi (refhi, reflo, input_bfd, input_section, contents, adjust,
relocation, pcrel)
struct internal_reloc *refhi;
struct internal_reloc *reflo;
bfd *input_bfd;
asection *input_section;
bfd_byte *contents;
size_t adjust;
bfd_vma relocation;
bfd_boolean pcrel;
{
unsigned long insn;
unsigned long val;
unsigned long vallo;
if (refhi == NULL)
return;
insn = bfd_get_32 (input_bfd,
contents + adjust + refhi->r_vaddr - input_section->vma);
if (reflo == NULL)
vallo = 0;
else
vallo = (bfd_get_32 (input_bfd,
contents + adjust + reflo->r_vaddr - input_section->vma)
& 0xffff);
val = ((insn & 0xffff) << 16) + vallo;
val += relocation;
if ((vallo & 0x8000) != 0)
val -= 0x10000;
if (pcrel)
val -= (input_section->output_section->vma
+ input_section->output_offset
+ (reflo->r_vaddr - input_section->vma + adjust));
if ((val & 0x8000) != 0)
val += 0x10000;
insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff);
bfd_put_32 (input_bfd, (bfd_vma) insn,
contents + adjust + refhi->r_vaddr - input_section->vma);
}
static bfd_boolean
mips_relocate_section (output_bfd, info, input_bfd, input_section,
contents, external_relocs)
bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
asection *input_section;
bfd_byte *contents;
PTR external_relocs;
{
asection **symndx_to_section;
struct ecoff_link_hash_entry **sym_hashes;
bfd_vma gp;
bfd_boolean gp_undefined;
size_t adjust;
long *offsets;
struct external_reloc *ext_rel;
struct external_reloc *ext_rel_end;
unsigned int i;
bfd_boolean got_lo;
struct internal_reloc lo_int_rel;
bfd_size_type amt;
BFD_ASSERT (input_bfd->xvec->byteorder
== output_bfd->xvec->byteorder);
symndx_to_section = ecoff_data (input_bfd)->symndx_to_section;
if (symndx_to_section == (asection **) NULL)
{
amt = NUM_RELOC_SECTIONS * sizeof (asection *);
symndx_to_section = (asection **) bfd_alloc (input_bfd, amt);
if (!symndx_to_section)
return FALSE;
symndx_to_section[RELOC_SECTION_NONE] = NULL;
symndx_to_section[RELOC_SECTION_TEXT] =
bfd_get_section_by_name (input_bfd, ".text");
symndx_to_section[RELOC_SECTION_RDATA] =
bfd_get_section_by_name (input_bfd, ".rdata");
symndx_to_section[RELOC_SECTION_DATA] =
bfd_get_section_by_name (input_bfd, ".data");
symndx_to_section[RELOC_SECTION_SDATA] =
bfd_get_section_by_name (input_bfd, ".sdata");
symndx_to_section[RELOC_SECTION_SBSS] =
bfd_get_section_by_name (input_bfd, ".sbss");
symndx_to_section[RELOC_SECTION_BSS] =
bfd_get_section_by_name (input_bfd, ".bss");
symndx_to_section[RELOC_SECTION_INIT] =
bfd_get_section_by_name (input_bfd, ".init");
symndx_to_section[RELOC_SECTION_LIT8] =
bfd_get_section_by_name (input_bfd, ".lit8");
symndx_to_section[RELOC_SECTION_LIT4] =
bfd_get_section_by_name (input_bfd, ".lit4");
symndx_to_section[RELOC_SECTION_XDATA] = NULL;
symndx_to_section[RELOC_SECTION_PDATA] = NULL;
symndx_to_section[RELOC_SECTION_FINI] =
bfd_get_section_by_name (input_bfd, ".fini");
symndx_to_section[RELOC_SECTION_LITA] = NULL;
symndx_to_section[RELOC_SECTION_ABS] = NULL;
ecoff_data (input_bfd)->symndx_to_section = symndx_to_section;
}
sym_hashes = ecoff_data (input_bfd)->sym_hashes;
gp = _bfd_get_gp_value (output_bfd);
if (gp == 0)
gp_undefined = TRUE;
else
gp_undefined = FALSE;
got_lo = FALSE;
adjust = 0;
if (ecoff_section_data (input_bfd, input_section) == NULL)
offsets = NULL;
else
offsets = ecoff_section_data (input_bfd, input_section)->offsets;
ext_rel = (struct external_reloc *) external_relocs;
ext_rel_end = ext_rel + input_section->reloc_count;
for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++)
{
struct internal_reloc int_rel;
bfd_boolean use_lo = FALSE;
bfd_vma addend;
reloc_howto_type *howto;
struct ecoff_link_hash_entry *h = NULL;
asection *s = NULL;
bfd_vma relocation;
bfd_reloc_status_type r;
if (! got_lo)
mips_ecoff_swap_reloc_in (input_bfd, (PTR) ext_rel, &int_rel);
else
{
int_rel = lo_int_rel;
got_lo = FALSE;
}
BFD_ASSERT (int_rel.r_type
< sizeof mips_howto_table / sizeof mips_howto_table[0]);
if (int_rel.r_type == MIPS_R_REFHI
|| int_rel.r_type == MIPS_R_RELHI)
{
struct external_reloc *lo_ext_rel;
for (lo_ext_rel = ext_rel + 1;
lo_ext_rel < ext_rel_end;
lo_ext_rel++)
{
mips_ecoff_swap_reloc_in (input_bfd, (PTR) lo_ext_rel,
&lo_int_rel);
if (lo_int_rel.r_type != int_rel.r_type)
break;
}
if (lo_ext_rel < ext_rel_end
&& (lo_int_rel.r_type
== (int_rel.r_type == MIPS_R_REFHI
? MIPS_R_REFLO
: MIPS_R_RELLO))
&& int_rel.r_extern == lo_int_rel.r_extern
&& int_rel.r_symndx == lo_int_rel.r_symndx)
{
use_lo = TRUE;
if (lo_ext_rel == ext_rel + 1)
got_lo = TRUE;
}
}
howto = &mips_howto_table[int_rel.r_type];
if (int_rel.r_type == MIPS_R_SWITCH)
{
if (offsets != NULL
&& offsets[i] != 0)
{
r = _bfd_relocate_contents (howto, input_bfd,
(bfd_vma) offsets[i],
(contents
+ adjust
+ int_rel.r_vaddr
- input_section->vma));
BFD_ASSERT (r == bfd_reloc_ok);
}
continue;
}
if (int_rel.r_extern)
{
h = sym_hashes[int_rel.r_symndx];
if (h == (struct ecoff_link_hash_entry *) NULL)
abort ();
}
else
{
if (int_rel.r_symndx < 0 || int_rel.r_symndx >= NUM_RELOC_SECTIONS)
s = NULL;
else
s = symndx_to_section[int_rel.r_symndx];
if (s == (asection *) NULL)
abort ();
}
if (int_rel.r_type != MIPS_R_GPREL
&& int_rel.r_type != MIPS_R_LITERAL)
addend = 0;
else
{
if (gp_undefined)
{
if (! ((*info->callbacks->reloc_dangerous)
(info, _("GP relative relocation used when GP not defined"),
input_bfd, input_section,
int_rel.r_vaddr - input_section->vma)))
return FALSE;
gp = 4;
_bfd_set_gp_value (output_bfd, gp);
gp_undefined = FALSE;
}
if (! int_rel.r_extern)
{
addend = ecoff_data (input_bfd)->gp - gp;
}
else if (! info->relocateable
|| h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
addend = - gp;
}
else
{
addend = 0;
}
}
if (offsets != NULL
&& offsets[i] != 0)
{
BFD_ASSERT (! info->relocateable);
BFD_ASSERT (int_rel.r_type == MIPS_R_PCREL16
|| int_rel.r_type == MIPS_R_RELHI
|| int_rel.r_type == MIPS_R_RELLO);
if (offsets[i] != 1)
addend += offsets[i];
else
{
bfd_byte *here;
BFD_ASSERT (int_rel.r_extern
&& int_rel.r_type == MIPS_R_PCREL16);
here = (contents
+ adjust
+ int_rel.r_vaddr
- input_section->vma);
memmove (here + PCREL16_EXPANSION_ADJUSTMENT, here,
(size_t) (input_section->_raw_size
- (int_rel.r_vaddr - input_section->vma)));
if (! mips_relax_pcrel16 (info, input_bfd, input_section,
h, here,
(input_section->output_section->vma
+ input_section->output_offset
+ (int_rel.r_vaddr
- input_section->vma)
+ adjust)))
return FALSE;
adjust += PCREL16_EXPANSION_ADJUSTMENT;
continue;
}
}
if (ecoff_data (input_bfd)->debug_info.adjust != NULL
&& ! int_rel.r_extern
&& int_rel.r_symndx == RELOC_SECTION_TEXT
&& (strcmp (bfd_get_section_name (input_bfd, input_section),
".text") != 0
|| (int_rel.r_type != MIPS_R_PCREL16
&& int_rel.r_type != MIPS_R_SWITCH
&& int_rel.r_type != MIPS_R_RELHI
&& int_rel.r_type != MIPS_R_RELLO)))
{
bfd_vma adr;
struct ecoff_value_adjust *a;
BFD_ASSERT (int_rel.r_type == MIPS_R_REFWORD);
adr = bfd_get_32 (input_bfd,
(contents
+ adjust
+ int_rel.r_vaddr
- input_section->vma));
for (a = ecoff_data (input_bfd)->debug_info.adjust;
a != (struct ecoff_value_adjust *) NULL;
a = a->next)
{
if (adr >= a->start && adr < a->end)
addend += a->adjust;
}
}
if (info->relocateable)
{
if (int_rel.r_extern)
{
if ((h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& ! bfd_is_abs_section (h->root.u.def.section))
{
const char *name;
int_rel.r_extern = 0;
s = h->root.u.def.section;
name = bfd_get_section_name (output_bfd,
s->output_section);
int_rel.r_symndx = -1;
switch (name[1])
{
case 'b':
if (strcmp (name, ".bss") == 0)
int_rel.r_symndx = RELOC_SECTION_BSS;
break;
case 'd':
if (strcmp (name, ".data") == 0)
int_rel.r_symndx = RELOC_SECTION_DATA;
break;
case 'f':
if (strcmp (name, ".fini") == 0)
int_rel.r_symndx = RELOC_SECTION_FINI;
break;
case 'i':
if (strcmp (name, ".init") == 0)
int_rel.r_symndx = RELOC_SECTION_INIT;
break;
case 'l':
if (strcmp (name, ".lit8") == 0)
int_rel.r_symndx = RELOC_SECTION_LIT8;
else if (strcmp (name, ".lit4") == 0)
int_rel.r_symndx = RELOC_SECTION_LIT4;
break;
case 'r':
if (strcmp (name, ".rdata") == 0)
int_rel.r_symndx = RELOC_SECTION_RDATA;
break;
case 's':
if (strcmp (name, ".sdata") == 0)
int_rel.r_symndx = RELOC_SECTION_SDATA;
else if (strcmp (name, ".sbss") == 0)
int_rel.r_symndx = RELOC_SECTION_SBSS;
break;
case 't':
if (strcmp (name, ".text") == 0)
int_rel.r_symndx = RELOC_SECTION_TEXT;
break;
}
if (int_rel.r_symndx == -1)
abort ();
relocation = (h->root.u.def.value
+ s->output_section->vma
+ s->output_offset);
if (howto->pc_relative)
{
relocation -= int_rel.r_vaddr - input_section->vma;
if (int_rel.r_type == MIPS_R_RELHI)
{
long addhi, addlo;
addhi = bfd_get_32 (input_bfd,
(contents
+ adjust
+ int_rel.r_vaddr
- input_section->vma));
addhi &= 0xffff;
if (addhi & 0x8000)
addhi -= 0x10000;
addhi <<= 16;
if (! use_lo)
addlo = 0;
else
{
addlo = bfd_get_32 (input_bfd,
(contents
+ adjust
+ lo_int_rel.r_vaddr
- input_section->vma));
addlo &= 0xffff;
if (addlo & 0x8000)
addlo -= 0x10000;
lo_int_rel.r_offset = addhi + addlo;
}
int_rel.r_offset = addhi + addlo;
}
}
h = NULL;
}
else
{
int_rel.r_symndx = h->indx;
if (int_rel.r_symndx == -1)
{
if (! ((*info->callbacks->unattached_reloc)
(info, h->root.root.string, input_bfd,
input_section,
int_rel.r_vaddr - input_section->vma)))
return FALSE;
int_rel.r_symndx = 0;
}
relocation = 0;
}
}
else
{
relocation = (s->output_section->vma
+ s->output_offset
- s->vma);
}
relocation += addend;
addend = 0;
if (howto->pc_relative
&& (! int_rel.r_extern
|| (int_rel.r_type != MIPS_R_RELHI
&& int_rel.r_type != MIPS_R_RELLO)))
relocation -= (input_section->output_section->vma
+ input_section->output_offset
- input_section->vma);
if (relocation == 0)
r = bfd_reloc_ok;
else
{
if (int_rel.r_type != MIPS_R_REFHI
&& int_rel.r_type != MIPS_R_RELHI)
r = _bfd_relocate_contents (howto, input_bfd, relocation,
(contents
+ adjust
+ int_rel.r_vaddr
- input_section->vma));
else
{
mips_relocate_hi (&int_rel,
use_lo ? &lo_int_rel : NULL,
input_bfd, input_section, contents,
adjust, relocation,
int_rel.r_type == MIPS_R_RELHI);
r = bfd_reloc_ok;
}
}
int_rel.r_vaddr += (input_section->output_section->vma
+ input_section->output_offset
- input_section->vma);
mips_ecoff_swap_reloc_out (input_bfd, &int_rel, (PTR) ext_rel);
}
else
{
if (int_rel.r_extern)
{
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
asection *hsec;
hsec = h->root.u.def.section;
relocation = (h->root.u.def.value
+ hsec->output_section->vma
+ hsec->output_offset);
}
else
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
input_section,
int_rel.r_vaddr - input_section->vma, TRUE)))
return FALSE;
relocation = 0;
}
}
else
{
relocation = (s->output_section->vma
+ s->output_offset
- s->vma);
if (howto->pc_relative)
{
if (int_rel.r_type != MIPS_R_RELHI || ! use_lo)
relocation += int_rel.r_vaddr + adjust;
else
relocation += lo_int_rel.r_vaddr + adjust;
}
}
if (int_rel.r_type != MIPS_R_REFHI
&& int_rel.r_type != MIPS_R_RELHI)
r = _bfd_final_link_relocate (howto,
input_bfd,
input_section,
contents,
(int_rel.r_vaddr
- input_section->vma
+ adjust),
relocation,
addend);
else
{
mips_relocate_hi (&int_rel,
use_lo ? &lo_int_rel : NULL,
input_bfd, input_section, contents, adjust,
relocation,
int_rel.r_type == MIPS_R_RELHI);
r = bfd_reloc_ok;
}
}
if (r == bfd_reloc_ok
&& int_rel.r_type == MIPS_R_JMPADDR
&& (((relocation
+ addend
+ (int_rel.r_extern ? 0 : s->vma))
& 0xf0000000)
!= ((input_section->output_section->vma
+ input_section->output_offset
+ (int_rel.r_vaddr - input_section->vma)
+ adjust)
& 0xf0000000)))
r = bfd_reloc_overflow;
if (r != bfd_reloc_ok)
{
switch (r)
{
default:
case bfd_reloc_outofrange:
abort ();
case bfd_reloc_overflow:
{
const char *name;
if (int_rel.r_extern)
name = h->root.root.string;
else
name = bfd_section_name (input_bfd, s);
if (! ((*info->callbacks->reloc_overflow)
(info, name, howto->name, (bfd_vma) 0,
input_bfd, input_section,
int_rel.r_vaddr - input_section->vma)))
return FALSE;
}
break;
}
}
}
return TRUE;
}
static bfd_boolean
mips_read_relocs (abfd, sec)
bfd *abfd;
asection *sec;
{
struct ecoff_section_tdata *section_tdata;
bfd_size_type amt;
section_tdata = ecoff_section_data (abfd, sec);
if (section_tdata == (struct ecoff_section_tdata *) NULL)
{
amt = sizeof (struct ecoff_section_tdata);
sec->used_by_bfd = (PTR) bfd_alloc (abfd, amt);
if (sec->used_by_bfd == NULL)
return FALSE;
section_tdata = ecoff_section_data (abfd, sec);
section_tdata->external_relocs = NULL;
section_tdata->contents = NULL;
section_tdata->offsets = NULL;
}
if (section_tdata->external_relocs == NULL)
{
amt = ecoff_backend (abfd)->external_reloc_size;
amt *= sec->reloc_count;
section_tdata->external_relocs = (PTR) bfd_alloc (abfd, amt);
if (section_tdata->external_relocs == NULL && amt != 0)
return FALSE;
if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0
|| bfd_bread (section_tdata->external_relocs, amt, abfd) != amt)
return FALSE;
}
return TRUE;
}
static bfd_boolean
mips_relax_section (abfd, sec, info, again)
bfd *abfd;
asection *sec;
struct bfd_link_info *info;
bfd_boolean *again;
{
struct ecoff_section_tdata *section_tdata;
bfd_byte *contents = NULL;
long *offsets;
struct external_reloc *ext_rel;
struct external_reloc *ext_rel_end;
unsigned int i;
*again = FALSE;
if (info->hash->creator->flavour != bfd_get_flavour (abfd))
return TRUE;
if (sec->reloc_count == 0)
return TRUE;
if (strcmp (bfd_get_section_name (abfd, sec), ".text") != 0)
return TRUE;
section_tdata = ecoff_section_data (abfd, sec);
if (section_tdata == (struct ecoff_section_tdata *) NULL
|| section_tdata->external_relocs == NULL)
{
if (! mips_read_relocs (abfd, sec))
goto error_return;
section_tdata = ecoff_section_data (abfd, sec);
}
if (sec->_cooked_size == 0)
{
sec->_cooked_size = sec->_raw_size;
}
contents = section_tdata->contents;
offsets = section_tdata->offsets;
ext_rel = (struct external_reloc *) section_tdata->external_relocs;
ext_rel_end = ext_rel + sec->reloc_count;
for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++)
{
struct internal_reloc int_rel;
struct ecoff_link_hash_entry *h;
asection *hsec;
bfd_signed_vma relocation;
struct external_reloc *adj_ext_rel;
unsigned int adj_i;
unsigned long ext_count;
struct ecoff_link_hash_entry **adj_h_ptr;
struct ecoff_link_hash_entry **adj_h_ptr_end;
struct ecoff_value_adjust *adjust;
bfd_size_type amt;
if (offsets != (long *) NULL && offsets[i] == 1)
continue;
if (bfd_header_big_endian (abfd))
{
if ((ext_rel->r_bits[3] & RELOC_BITS3_EXTERN_BIG) == 0
|| (((ext_rel->r_bits[3] & RELOC_BITS3_TYPE_BIG)
>> RELOC_BITS3_TYPE_SH_BIG)
!= MIPS_R_PCREL16))
continue;
}
else
{
if ((ext_rel->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) == 0
|| (((ext_rel->r_bits[3] & RELOC_BITS3_TYPE_LITTLE)
>> RELOC_BITS3_TYPE_SH_LITTLE)
!= MIPS_R_PCREL16))
continue;
}
mips_ecoff_swap_reloc_in (abfd, (PTR) ext_rel, &int_rel);
h = ecoff_data (abfd)->sym_hashes[int_rel.r_symndx];
if (h == (struct ecoff_link_hash_entry *) NULL)
abort ();
if (h->root.type != bfd_link_hash_defined
&& h->root.type != bfd_link_hash_defweak)
{
continue;
}
hsec = h->root.u.def.section;
relocation = (h->root.u.def.value
+ hsec->output_section->vma
+ hsec->output_offset);
relocation -= (sec->output_section->vma
+ sec->output_offset
+ (int_rel.r_vaddr - sec->vma));
relocation -= 4;
if (relocation >= -0x20000 && relocation < 0x20000)
continue;
if (contents == (bfd_byte *) NULL)
{
if (info->keep_memory)
contents = (bfd_byte *) bfd_alloc (abfd, sec->_raw_size);
else
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
if (contents == (bfd_byte *) NULL)
goto error_return;
if (! bfd_get_section_contents (abfd, sec, (PTR) contents,
(file_ptr) 0, sec->_raw_size))
goto error_return;
if (info->keep_memory)
section_tdata->contents = contents;
}
if (bfd_get_32 (abfd, contents + int_rel.r_vaddr - sec->vma)
!= 0x0411ffff)
continue;
sec->_cooked_size += PCREL16_EXPANSION_ADJUSTMENT;
*again = TRUE;
if (offsets == (long *) NULL)
{
bfd_size_type size;
size = (bfd_size_type) sec->reloc_count * sizeof (long);
offsets = (long *) bfd_zalloc (abfd, size);
if (offsets == (long *) NULL)
goto error_return;
section_tdata->offsets = offsets;
}
offsets[i] = 1;
adj_ext_rel = (struct external_reloc *) section_tdata->external_relocs;
for (adj_i = 0; adj_ext_rel < ext_rel_end; adj_ext_rel++, adj_i++)
{
struct internal_reloc adj_int_rel;
bfd_vma start, stop;
int change;
mips_ecoff_swap_reloc_in (abfd, (PTR) adj_ext_rel, &adj_int_rel);
if (adj_int_rel.r_type == MIPS_R_PCREL16)
{
unsigned long insn;
if (adj_int_rel.r_extern)
continue;
if (adj_int_rel.r_symndx != RELOC_SECTION_TEXT)
continue;
start = adj_int_rel.r_vaddr;
insn = bfd_get_32 (abfd,
contents + adj_int_rel.r_vaddr - sec->vma);
stop = (insn & 0xffff) << 2;
if ((stop & 0x20000) != 0)
stop -= 0x40000;
stop += adj_int_rel.r_vaddr + 4;
}
else if (adj_int_rel.r_type == MIPS_R_RELHI)
{
struct internal_reloc rello;
long addhi, addlo;
BFD_ASSERT (adj_ext_rel + 1 < ext_rel_end);
mips_ecoff_swap_reloc_in (abfd, (PTR) (adj_ext_rel + 1), &rello);
BFD_ASSERT (rello.r_type == MIPS_R_RELLO);
addhi = bfd_get_32 (abfd,
contents + adj_int_rel.r_vaddr - sec->vma);
addhi &= 0xffff;
if (addhi & 0x8000)
addhi -= 0x10000;
addhi <<= 16;
addlo = bfd_get_32 (abfd, contents + rello.r_vaddr - sec->vma);
addlo &= 0xffff;
if (addlo & 0x8000)
addlo -= 0x10000;
if (adj_int_rel.r_extern)
{
start = rello.r_vaddr - (addhi + addlo);
stop = rello.r_vaddr;
}
else
{
start = rello.r_vaddr - adj_int_rel.r_offset;
stop = start + addhi + addlo;
}
}
else if (adj_int_rel.r_type == MIPS_R_SWITCH)
{
start = adj_int_rel.r_vaddr - adj_int_rel.r_offset;
stop = start + bfd_get_32 (abfd,
(contents
+ adj_int_rel.r_vaddr
- sec->vma));
}
else
continue;
if (start <= int_rel.r_vaddr && stop > int_rel.r_vaddr)
change = PCREL16_EXPANSION_ADJUSTMENT;
else if (start > int_rel.r_vaddr && stop <= int_rel.r_vaddr)
change = - PCREL16_EXPANSION_ADJUSTMENT;
else
change = 0;
offsets[adj_i] += change;
if (adj_int_rel.r_type == MIPS_R_RELHI)
{
adj_ext_rel++;
adj_i++;
offsets[adj_i] += change;
}
}
ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax;
adj_h_ptr = ecoff_data (abfd)->sym_hashes;
adj_h_ptr_end = adj_h_ptr + ext_count;
for (; adj_h_ptr < adj_h_ptr_end; adj_h_ptr++)
{
struct ecoff_link_hash_entry *adj_h;
adj_h = *adj_h_ptr;
if (adj_h != (struct ecoff_link_hash_entry *) NULL
&& (adj_h->root.type == bfd_link_hash_defined
|| adj_h->root.type == bfd_link_hash_defweak)
&& adj_h->root.u.def.section == sec
&& adj_h->esym.asym.value > int_rel.r_vaddr)
adj_h->root.u.def.value += PCREL16_EXPANSION_ADJUSTMENT;
}
amt = sizeof (struct ecoff_value_adjust);
adjust = (struct ecoff_value_adjust *) bfd_alloc (abfd, amt);
if (adjust == (struct ecoff_value_adjust *) NULL)
goto error_return;
adjust->start = int_rel.r_vaddr;
adjust->end = sec->vma + sec->_raw_size;
adjust->adjust = PCREL16_EXPANSION_ADJUSTMENT;
adjust->next = ecoff_data (abfd)->debug_info.adjust;
ecoff_data (abfd)->debug_info.adjust = adjust;
}
if (contents != (bfd_byte *) NULL && ! info->keep_memory)
free (contents);
return TRUE;
error_return:
if (contents != (bfd_byte *) NULL && ! info->keep_memory)
free (contents);
return FALSE;
}
static bfd_boolean
mips_relax_pcrel16 (info, input_bfd, input_section, h, location, address)
struct bfd_link_info *info ATTRIBUTE_UNUSED;
bfd *input_bfd;
asection *input_section ATTRIBUTE_UNUSED;
struct ecoff_link_hash_entry *h;
bfd_byte *location;
bfd_vma address;
{
bfd_vma relocation;
BFD_ASSERT (bfd_get_32 (input_bfd, location) == 0x0411ffff);
relocation = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
relocation -= address + 8;
if ((relocation & 0x8000) != 0)
relocation += 0x10000;
bfd_put_32 (input_bfd, (bfd_vma) 0x04110001, location);
bfd_put_32 (input_bfd,
0x3c010000 | ((relocation >> 16) & 0xffff),
location + 4);
bfd_put_32 (input_bfd,
0x24210000 | (relocation & 0xffff),
location + 8);
bfd_put_32 (input_bfd,
(bfd_vma) 0x003f0821, location + 12);
bfd_put_32 (input_bfd,
(bfd_vma) 0x0020f809, location + 16);
return TRUE;
}
bfd_boolean
bfd_mips_ecoff_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
bfd *abfd;
struct bfd_link_info *info;
asection *datasec;
asection *relsec;
char **errmsg;
{
struct ecoff_link_hash_entry **sym_hashes;
struct ecoff_section_tdata *section_tdata;
struct external_reloc *ext_rel;
struct external_reloc *ext_rel_end;
bfd_byte *p;
bfd_size_type amt;
BFD_ASSERT (! info->relocateable);
*errmsg = NULL;
if (datasec->reloc_count == 0)
return TRUE;
sym_hashes = ecoff_data (abfd)->sym_hashes;
if (! mips_read_relocs (abfd, datasec))
return FALSE;
amt = (bfd_size_type) datasec->reloc_count * 4;
relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
if (relsec->contents == NULL)
return FALSE;
p = relsec->contents;
section_tdata = ecoff_section_data (abfd, datasec);
ext_rel = (struct external_reloc *) section_tdata->external_relocs;
ext_rel_end = ext_rel + datasec->reloc_count;
for (; ext_rel < ext_rel_end; ext_rel++, p += 4)
{
struct internal_reloc int_rel;
bfd_boolean text_relative;
mips_ecoff_swap_reloc_in (abfd, (PTR) ext_rel, &int_rel);
if (int_rel.r_type != MIPS_R_REFWORD)
{
*errmsg = _("unsupported reloc type");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (int_rel.r_extern)
{
struct ecoff_link_hash_entry *h;
h = sym_hashes[int_rel.r_symndx];
if (h == (struct ecoff_link_hash_entry *) NULL)
abort ();
if ((h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& (h->root.u.def.section->flags & SEC_CODE) != 0)
text_relative = TRUE;
else
text_relative = FALSE;
}
else
{
switch (int_rel.r_symndx)
{
case RELOC_SECTION_TEXT:
text_relative = TRUE;
break;
case RELOC_SECTION_SDATA:
case RELOC_SECTION_SBSS:
case RELOC_SECTION_LIT8:
text_relative = FALSE;
break;
default:
*errmsg = _("reloc against unsupported section");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
}
if ((int_rel.r_offset & 3) != 0)
{
*errmsg = _("reloc not properly aligned");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
bfd_put_32 (abfd,
(int_rel.r_vaddr - datasec->vma + datasec->output_offset
+ (text_relative ? 0 : 1)),
p);
}
return TRUE;
}
static const struct ecoff_backend_data mips_ecoff_backend_data =
{
{
(void (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR))) bfd_void,
(void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void,
(void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void,
(unsigned (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR)))bfd_void,
(unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void,
(unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void,
(unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void,
mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out,
mips_ecoff_swap_scnhdr_out,
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, FILNMLEN, TRUE, FALSE, 4, FALSE, 2,
mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
mips_ecoff_swap_scnhdr_in, NULL,
mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook,
_bfd_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags,
_bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL
},
bfd_arch_mips,
"__________",
0x1000,
FALSE,
32,
&mips_howto_table[MIPS_R_REFWORD],
{
magicSym,
4,
sizeof (struct hdr_ext),
sizeof (struct dnr_ext),
sizeof (struct pdr_ext),
sizeof (struct sym_ext),
sizeof (struct opt_ext),
sizeof (struct fdr_ext),
sizeof (struct rfd_ext),
sizeof (struct ext_ext),
ecoff_swap_hdr_in,
ecoff_swap_dnr_in,
ecoff_swap_pdr_in,
ecoff_swap_sym_in,
ecoff_swap_opt_in,
ecoff_swap_fdr_in,
ecoff_swap_rfd_in,
ecoff_swap_ext_in,
_bfd_ecoff_swap_tir_in,
_bfd_ecoff_swap_rndx_in,
ecoff_swap_hdr_out,
ecoff_swap_dnr_out,
ecoff_swap_pdr_out,
ecoff_swap_sym_out,
ecoff_swap_opt_out,
ecoff_swap_fdr_out,
ecoff_swap_rfd_out,
ecoff_swap_ext_out,
_bfd_ecoff_swap_tir_out,
_bfd_ecoff_swap_rndx_out,
_bfd_ecoff_slurp_symbolic_info
},
RELSZ,
mips_ecoff_swap_reloc_in,
mips_ecoff_swap_reloc_out,
mips_adjust_reloc_in,
mips_adjust_reloc_out,
mips_relocate_section,
NULL,
_bfd_get_elt_at_filepos
};
#define _bfd_ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup
#define _bfd_ecoff_bfd_get_relocated_section_contents \
bfd_generic_get_relocated_section_contents
#define _bfd_ecoff_get_section_contents_in_window \
_bfd_generic_get_section_contents_in_window
#define _bfd_ecoff_bfd_relax_section mips_relax_section
#define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections
#define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections
#define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group
extern const bfd_target ecoff_big_vec;
const bfd_target ecoff_little_vec =
{
"ecoff-littlemips",
bfd_target_ecoff_flavour,
BFD_ENDIAN_LITTLE,
BFD_ENDIAN_LITTLE,
(HAS_RELOC | EXEC_P |
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
0,
' ',
15,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
{_bfd_dummy_target, coff_object_p,
_bfd_ecoff_archive_p, _bfd_dummy_target},
{bfd_false, _bfd_ecoff_mkobject,
_bfd_generic_mkarchive, bfd_false},
{bfd_false, _bfd_ecoff_write_object_contents,
_bfd_write_archive_contents, bfd_false},
BFD_JUMP_TABLE_GENERIC (_bfd_ecoff),
BFD_JUMP_TABLE_COPY (_bfd_ecoff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff),
BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff),
BFD_JUMP_TABLE_RELOCS (_bfd_ecoff),
BFD_JUMP_TABLE_WRITE (_bfd_ecoff),
BFD_JUMP_TABLE_LINK (_bfd_ecoff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
& ecoff_big_vec,
(PTR) &mips_ecoff_backend_data
};
const bfd_target ecoff_big_vec =
{
"ecoff-bigmips",
bfd_target_ecoff_flavour,
BFD_ENDIAN_BIG,
BFD_ENDIAN_BIG,
(HAS_RELOC | EXEC_P |
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
0,
' ',
15,
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
{_bfd_dummy_target, coff_object_p,
_bfd_ecoff_archive_p, _bfd_dummy_target},
{bfd_false, _bfd_ecoff_mkobject,
_bfd_generic_mkarchive, bfd_false},
{bfd_false, _bfd_ecoff_write_object_contents,
_bfd_write_archive_contents, bfd_false},
BFD_JUMP_TABLE_GENERIC (_bfd_ecoff),
BFD_JUMP_TABLE_COPY (_bfd_ecoff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff),
BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff),
BFD_JUMP_TABLE_RELOCS (_bfd_ecoff),
BFD_JUMP_TABLE_WRITE (_bfd_ecoff),
BFD_JUMP_TABLE_LINK (_bfd_ecoff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
& ecoff_little_vec,
(PTR) &mips_ecoff_backend_data
};
const bfd_target ecoff_biglittle_vec =
{
"ecoff-biglittlemips",
bfd_target_ecoff_flavour,
BFD_ENDIAN_LITTLE,
BFD_ENDIAN_BIG,
(HAS_RELOC | EXEC_P |
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
0,
' ',
15,
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
{_bfd_dummy_target, coff_object_p,
_bfd_ecoff_archive_p, _bfd_dummy_target},
{bfd_false, _bfd_ecoff_mkobject,
_bfd_generic_mkarchive, bfd_false},
{bfd_false, _bfd_ecoff_write_object_contents,
_bfd_write_archive_contents, bfd_false},
BFD_JUMP_TABLE_GENERIC (_bfd_ecoff),
BFD_JUMP_TABLE_COPY (_bfd_ecoff),
BFD_JUMP_TABLE_CORE (_bfd_nocore),
BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff),
BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff),
BFD_JUMP_TABLE_RELOCS (_bfd_ecoff),
BFD_JUMP_TABLE_WRITE (_bfd_ecoff),
BFD_JUMP_TABLE_LINK (_bfd_ecoff),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
(PTR) &mips_ecoff_backend_data
};