#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "coff/m68k.h"
#include "coff/internal.h"
#include "libcoff.h"
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#ifndef COFF_PAGE_SIZE
#define COFF_PAGE_SIZE 0x2000
#endif
#ifndef COFF_COMMON_ADDEND
#define RELOC_SPECIAL_FN 0
#else
static bfd_reloc_status_type m68kcoff_common_addend_special_fn
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static reloc_howto_type *m68kcoff_common_addend_rtype_to_howto
PARAMS ((bfd *, asection *, struct internal_reloc *,
struct coff_link_hash_entry *, struct internal_syment *,
bfd_vma *));
#define RELOC_SPECIAL_FN m68kcoff_common_addend_special_fn
#endif
static bfd_boolean m68k_coff_is_local_label_name
PARAMS ((bfd *, const char *));
static bfd_boolean
m68k_coff_is_local_label_name (abfd, name)
bfd *abfd;
const char *name;
{
if (name[0] == 'L' && name[1] == '%')
return TRUE;
return _bfd_coff_is_local_label_name (abfd, name);
}
#ifndef STATIC_RELOCS
#define m68kcoff_howto_table _bfd_m68kcoff_howto_table
#define m68k_rtype2howto _bfd_m68kcoff_rtype2howto
#define m68k_howto2rtype _bfd_m68kcoff_howto2rtype
#define m68k_reloc_type_lookup _bfd_m68kcoff_reloc_type_lookup
#endif
#ifdef ONLY_DECLARE_RELOCS
extern reloc_howto_type m68kcoff_howto_table[];
#else
#ifdef STATIC_RELOCS
static
#endif
reloc_howto_type m68kcoff_howto_table[] =
{
HOWTO (R_RELBYTE, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "8", TRUE, 0x000000ff,0x000000ff, FALSE),
HOWTO (R_RELWORD, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
HOWTO (R_RELLONG, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "32", TRUE, 0xffffffff,0xffffffff, FALSE),
HOWTO (R_PCRBYTE, 0, 0, 8, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
HOWTO (R_PCRWORD, 0, 1, 16, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
HOWTO (R_PCRLONG, 0, 2, 32, TRUE, 0, complain_overflow_signed, RELOC_SPECIAL_FN, "DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
HOWTO (R_RELLONG_NEG, 0, -2, 32, FALSE, 0, complain_overflow_bitfield, RELOC_SPECIAL_FN, "-32", TRUE, 0xffffffff,0xffffffff, FALSE),
};
#endif
#ifndef BADMAG
#define BADMAG(x) M68KBADMAG(x)
#endif
#define M68 1
#ifdef ONLY_DECLARE_RELOCS
extern void m68k_rtype2howto PARAMS ((arelent *internal, int relocentry));
extern int m68k_howto2rtype PARAMS ((reloc_howto_type *));
extern reloc_howto_type *m68k_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
#else
#ifdef STATIC_RELOCS
#define STAT_REL static
#else
#define STAT_REL
#endif
STAT_REL reloc_howto_type * m68k_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type));
STAT_REL int m68k_howto2rtype PARAMS ((reloc_howto_type *));
STAT_REL void m68k_rtype2howto PARAMS ((arelent *, int));
STAT_REL void
m68k_rtype2howto(internal, relocentry)
arelent *internal;
int relocentry;
{
switch (relocentry)
{
case R_RELBYTE: internal->howto = m68kcoff_howto_table + 0; break;
case R_RELWORD: internal->howto = m68kcoff_howto_table + 1; break;
case R_RELLONG: internal->howto = m68kcoff_howto_table + 2; break;
case R_PCRBYTE: internal->howto = m68kcoff_howto_table + 3; break;
case R_PCRWORD: internal->howto = m68kcoff_howto_table + 4; break;
case R_PCRLONG: internal->howto = m68kcoff_howto_table + 5; break;
case R_RELLONG_NEG: internal->howto = m68kcoff_howto_table + 6; break;
}
}
STAT_REL int
m68k_howto2rtype (internal)
reloc_howto_type *internal;
{
if (internal->pc_relative)
{
switch (internal->bitsize)
{
case 32: return R_PCRLONG;
case 16: return R_PCRWORD;
case 8: return R_PCRBYTE;
}
}
else
{
switch (internal->bitsize)
{
case 32: return R_RELLONG;
case 16: return R_RELWORD;
case 8: return R_RELBYTE;
}
}
return R_RELLONG;
}
STAT_REL reloc_howto_type *
m68k_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
switch (code)
{
default: return NULL;
case BFD_RELOC_8: return m68kcoff_howto_table + 0;
case BFD_RELOC_16: return m68kcoff_howto_table + 1;
case BFD_RELOC_CTOR:
case BFD_RELOC_32: return m68kcoff_howto_table + 2;
case BFD_RELOC_8_PCREL: return m68kcoff_howto_table + 3;
case BFD_RELOC_16_PCREL: return m68kcoff_howto_table + 4;
case BFD_RELOC_32_PCREL: return m68kcoff_howto_table + 5;
}
}
#endif
#define RTYPE2HOWTO(internal, relocentry) \
m68k_rtype2howto(internal, (relocentry)->r_type)
#define SELECT_RELOC(external, internal) \
external.r_type = m68k_howto2rtype (internal)
#define coff_bfd_reloc_type_lookup m68k_reloc_type_lookup
#ifndef COFF_COMMON_ADDEND
#ifndef coff_rtype_to_howto
#define coff_rtype_to_howto m68kcoff_rtype_to_howto
static reloc_howto_type *m68kcoff_rtype_to_howto
PARAMS ((bfd *, asection *, struct internal_reloc *,
struct coff_link_hash_entry *, struct internal_syment *,
bfd_vma *));
static reloc_howto_type *
m68kcoff_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
bfd *abfd ATTRIBUTE_UNUSED;
asection *sec;
struct internal_reloc *rel;
struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
struct internal_syment *sym ATTRIBUTE_UNUSED;
bfd_vma *addendp;
{
arelent relent;
reloc_howto_type *howto;
RTYPE2HOWTO (&relent, rel);
howto = relent.howto;
if (howto->pc_relative)
*addendp += sec->vma;
return howto;
}
#endif
#endif
#ifdef COFF_COMMON_ADDEND
static bfd_reloc_status_type
m68kcoff_common_addend_special_fn (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section ATTRIBUTE_UNUSED;
bfd *output_bfd;
char **error_message ATTRIBUTE_UNUSED;
{
symvalue diff;
if (output_bfd == (bfd *) NULL)
return bfd_reloc_continue;
if (bfd_is_com_section (symbol->section))
{
diff = symbol->value + reloc_entry->addend;
}
else
{
diff = reloc_entry->addend;
}
#define DOIT(x) \
x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
if (diff != 0)
{
reloc_howto_type *howto = reloc_entry->howto;
unsigned char *addr = (unsigned char *) data + reloc_entry->address;
switch (howto->size)
{
case 0:
{
char x = bfd_get_8 (abfd, addr);
DOIT (x);
bfd_put_8 (abfd, x, addr);
}
break;
case 1:
{
short x = bfd_get_16 (abfd, addr);
DOIT (x);
bfd_put_16 (abfd, (bfd_vma) x, addr);
}
break;
case 2:
{
long x = bfd_get_32 (abfd, addr);
DOIT (x);
bfd_put_32 (abfd, (bfd_vma) x, addr);
}
break;
default:
abort ();
}
}
return bfd_reloc_continue;
}
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
{ \
coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
coffsym = (obj_symbols (abfd) \
+ (cache_ptr->sym_ptr_ptr - symbols)); \
else if (ptr) \
coffsym = coff_symbol_from (abfd, ptr); \
if (coffsym != (coff_symbol_type *) NULL \
&& coffsym->native->u.syment.n_scnum == 0) \
cache_ptr->addend = - coffsym->native->u.syment.n_value; \
else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
&& ptr->section != (asection *) NULL) \
cache_ptr->addend = - (ptr->section->vma + ptr->value); \
else \
cache_ptr->addend = 0; \
if (ptr && (reloc.r_type == R_PCRBYTE \
|| reloc.r_type == R_PCRWORD \
|| reloc.r_type == R_PCRLONG)) \
cache_ptr->addend += asect->vma; \
}
#ifndef coff_rtype_to_howto
static reloc_howto_type *
m68kcoff_common_addend_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
bfd *abfd ATTRIBUTE_UNUSED;
asection *sec;
struct internal_reloc *rel;
struct coff_link_hash_entry *h;
struct internal_syment *sym;
bfd_vma *addendp;
{
arelent relent;
reloc_howto_type *howto;
RTYPE2HOWTO (&relent, rel);
howto = relent.howto;
if (howto->pc_relative)
*addendp += sec->vma;
if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
{
BFD_ASSERT (h != NULL);
*addendp -= sym->n_value;
}
if (h != NULL && h->root.type == bfd_link_hash_common)
*addendp += h->root.u.c.size;
return howto;
}
#define coff_rtype_to_howto m68kcoff_common_addend_rtype_to_howto
#endif
#endif
#if !defined ONLY_DECLARE_RELOCS && ! defined STATIC_RELOCS
bfd_boolean
bfd_m68k_coff_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
bfd *abfd;
struct bfd_link_info *info;
asection *datasec;
asection *relsec;
char **errmsg;
{
char *extsyms;
bfd_size_type symesz;
struct internal_reloc *irel, *irelend;
bfd_byte *p;
bfd_size_type amt;
BFD_ASSERT (! info->relocateable);
*errmsg = NULL;
if (datasec->reloc_count == 0)
return TRUE;
extsyms = obj_coff_external_syms (abfd);
symesz = bfd_coff_symesz (abfd);
irel = _bfd_coff_read_internal_relocs (abfd, datasec, TRUE, NULL, FALSE,
NULL);
irelend = irel + datasec->reloc_count;
amt = (bfd_size_type) datasec->reloc_count * 12;
relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
if (relsec->contents == NULL)
return FALSE;
p = relsec->contents;
for (; irel < irelend; irel++, p += 12)
{
asection *targetsec;
if (irel->r_type != R_RELLONG)
{
*errmsg = _("unsupported reloc type");
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (irel->r_symndx == -1)
targetsec = bfd_abs_section_ptr;
else
{
struct coff_link_hash_entry *h;
h = obj_coff_sym_hashes (abfd)[irel->r_symndx];
if (h == NULL)
{
struct internal_syment isym;
bfd_coff_swap_sym_in (abfd, extsyms + symesz * irel->r_symndx,
&isym);
targetsec = coff_section_from_bfd_index (abfd, isym.n_scnum);
}
else if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
targetsec = h->root.u.def.section;
else
targetsec = NULL;
}
bfd_put_32 (abfd,
(irel->r_vaddr - datasec->vma + datasec->output_offset), p);
memset (p + 4, 0, 8);
if (targetsec != NULL)
strncpy (p + 4, targetsec->output_section->name, 8);
}
return TRUE;
}
#endif
#define coff_bfd_is_local_label_name m68k_coff_is_local_label_name
#define coff_relocate_section _bfd_coff_generic_relocate_section
#include "coffcode.h"
#ifndef TARGET_SYM
#define TARGET_SYM m68kcoff_vec
#endif
#ifndef TARGET_NAME
#define TARGET_NAME "coff-m68k"
#endif
#ifdef NAMES_HAVE_UNDERSCORE
CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, '_', NULL)
#else
CREATE_BIG_COFF_TARGET_VEC (TARGET_SYM, TARGET_NAME, D_PAGED, 0, 0, NULL)
#endif