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coff64-rs6000.c
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/* BFD back-end for IBM RS/6000 "XCOFF64" files.
Copyright (C) 2000-2016 Free Software Foundation, Inc.
Written Clinton Popetz.
Contributed by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "coff/internal.h"
#include "coff/xcoff.h"
#include "coff/rs6k64.h"
#include "libcoff.h"
#include "libxcoff.h"
#define GET_FILEHDR_SYMPTR H_GET_64
#define PUT_FILEHDR_SYMPTR H_PUT_64
#define GET_AOUTHDR_DATA_START H_GET_64
#define PUT_AOUTHDR_DATA_START H_PUT_64
#define GET_AOUTHDR_TEXT_START H_GET_64
#define PUT_AOUTHDR_TEXT_START H_PUT_64
#define GET_AOUTHDR_TSIZE H_GET_64
#define PUT_AOUTHDR_TSIZE H_PUT_64
#define GET_AOUTHDR_DSIZE H_GET_64
#define PUT_AOUTHDR_DSIZE H_PUT_64
#define GET_AOUTHDR_BSIZE H_GET_64
#define PUT_AOUTHDR_BSIZE H_PUT_64
#define GET_AOUTHDR_ENTRY H_GET_64
#define PUT_AOUTHDR_ENTRY H_PUT_64
#define GET_SCNHDR_PADDR H_GET_64
#define PUT_SCNHDR_PADDR H_PUT_64
#define GET_SCNHDR_VADDR H_GET_64
#define PUT_SCNHDR_VADDR H_PUT_64
#define GET_SCNHDR_SIZE H_GET_64
#define PUT_SCNHDR_SIZE H_PUT_64
#define GET_SCNHDR_SCNPTR H_GET_64
#define PUT_SCNHDR_SCNPTR H_PUT_64
#define GET_SCNHDR_RELPTR H_GET_64
#define PUT_SCNHDR_RELPTR H_PUT_64
#define GET_SCNHDR_LNNOPTR H_GET_64
#define PUT_SCNHDR_LNNOPTR H_PUT_64
#define GET_SCNHDR_NRELOC H_GET_32
#define MAX_SCNHDR_NRELOC 0xffffffff
#define PUT_SCNHDR_NRELOC H_PUT_32
#define GET_SCNHDR_NLNNO H_GET_32
#define MAX_SCNHDR_NLNNO 0xffffffff
#define PUT_SCNHDR_NLNNO H_PUT_32
#define GET_RELOC_VADDR H_GET_64
#define PUT_RELOC_VADDR H_PUT_64
#define COFF_FORCE_SYMBOLS_IN_STRINGS
#define COFF_DEBUG_STRING_WIDE_PREFIX
#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \
do \
{ \
memset (((SCNHDR *) EXT)->s_pad, 0, \
sizeof (((SCNHDR *) EXT)->s_pad)); \
} \
while (0)
#define NO_COFF_LINENOS
#define coff_SWAP_lineno_in _bfd_xcoff64_swap_lineno_in
#define coff_SWAP_lineno_out _bfd_xcoff64_swap_lineno_out
static void _bfd_xcoff64_swap_lineno_in
(bfd *, void *, void *);
static unsigned int _bfd_xcoff64_swap_lineno_out
(bfd *, void *, void *);
static bfd_boolean _bfd_xcoff64_put_symbol_name
(struct bfd_link_info *, struct bfd_strtab_hash *,
struct internal_syment *, const char *);
static bfd_boolean _bfd_xcoff64_put_ldsymbol_name
(bfd *, struct xcoff_loader_info *, struct internal_ldsym *, const char *);
static void _bfd_xcoff64_swap_sym_in
(bfd *, void *, void *);
static unsigned int _bfd_xcoff64_swap_sym_out
(bfd *, void *, void *);
static void _bfd_xcoff64_swap_aux_in
(bfd *, void *, int, int, int, int, void *);
static unsigned int _bfd_xcoff64_swap_aux_out
(bfd *, void *, int, int, int, int, void *);
static void xcoff64_swap_reloc_in
(bfd *, void *, void *);
static unsigned int xcoff64_swap_reloc_out
(bfd *, void *, void *);
extern bfd_boolean _bfd_xcoff_mkobject
(bfd *);
extern bfd_boolean _bfd_xcoff_copy_private_bfd_data
(bfd *, bfd *);
extern bfd_boolean _bfd_xcoff_is_local_label_name
(bfd *, const char *);
extern void xcoff64_rtype2howto
(arelent *, struct internal_reloc *);
extern reloc_howto_type * xcoff64_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
extern bfd_boolean _bfd_xcoff_slurp_armap
(bfd *);
extern void *_bfd_xcoff_read_ar_hdr
(bfd *);
extern bfd *_bfd_xcoff_openr_next_archived_file
(bfd *, bfd *);
extern int _bfd_xcoff_stat_arch_elt
(bfd *, struct stat *);
extern bfd_boolean _bfd_xcoff_write_armap
(bfd *, unsigned int, struct orl *, unsigned int, int);
extern bfd_boolean _bfd_xcoff_write_archive_contents
(bfd *);
extern int _bfd_xcoff_sizeof_headers
(bfd *, struct bfd_link_info *);
extern void _bfd_xcoff_swap_sym_in
(bfd *, void *, void *);
extern unsigned int _bfd_xcoff_swap_sym_out
(bfd *, void *, void *);
extern void _bfd_xcoff_swap_aux_in
(bfd *, void *, int, int, int, int, void *);
extern unsigned int _bfd_xcoff_swap_aux_out
(bfd *, void *, int, int, int, int, void *);
static void xcoff64_swap_ldhdr_in
(bfd *, const void *, struct internal_ldhdr *);
static void xcoff64_swap_ldhdr_out
(bfd *, const struct internal_ldhdr *, void *d);
static void xcoff64_swap_ldsym_in
(bfd *, const void *, struct internal_ldsym *);
static void xcoff64_swap_ldsym_out
(bfd *, const struct internal_ldsym *, void *d);
static void xcoff64_swap_ldrel_in
(bfd *, const void *, struct internal_ldrel *);
static void xcoff64_swap_ldrel_out
(bfd *, const struct internal_ldrel *, void *d);
static bfd_boolean xcoff64_write_object_contents
(bfd *);
static bfd_boolean xcoff64_ppc_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *,
asection **);
static bfd_boolean xcoff64_slurp_armap
(bfd *);
static const bfd_target *xcoff64_archive_p
(bfd *);
static bfd *xcoff64_openr_next_archived_file
(bfd *, bfd *);
static int xcoff64_sizeof_headers
(bfd *, struct bfd_link_info *);
static asection *xcoff64_create_csect_from_smclas
(bfd *, union internal_auxent *, const char *);
static bfd_boolean xcoff64_is_lineno_count_overflow
(bfd *, bfd_vma);
static bfd_boolean xcoff64_is_reloc_count_overflow
(bfd *, bfd_vma);
static bfd_vma xcoff64_loader_symbol_offset
(bfd *, struct internal_ldhdr *);
static bfd_vma xcoff64_loader_reloc_offset
(bfd *, struct internal_ldhdr *);
static bfd_boolean xcoff64_generate_rtinit
(bfd *, const char *, const char *, bfd_boolean);
static bfd_boolean xcoff64_bad_format_hook
(bfd *, void *);
/* Relocation functions */
static bfd_boolean xcoff64_reloc_type_br
(XCOFF_RELOC_FUNCTION_ARGS);
bfd_boolean (*xcoff64_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION])
(XCOFF_RELOC_FUNCTION_ARGS) =
{
xcoff_reloc_type_pos, /* R_POS (0x00) */
xcoff_reloc_type_neg, /* R_NEG (0x01) */
xcoff_reloc_type_rel, /* R_REL (0x02) */
xcoff_reloc_type_toc, /* R_TOC (0x03) */
xcoff_reloc_type_fail, /* R_RTB (0x04) */
xcoff_reloc_type_toc, /* R_GL (0x05) */
xcoff_reloc_type_toc, /* R_TCL (0x06) */
xcoff_reloc_type_fail, /* (0x07) */
xcoff_reloc_type_ba, /* R_BA (0x08) */
xcoff_reloc_type_fail, /* (0x09) */
xcoff64_reloc_type_br, /* R_BR (0x0a) */
xcoff_reloc_type_fail, /* (0x0b) */
xcoff_reloc_type_pos, /* R_RL (0x0c) */
xcoff_reloc_type_pos, /* R_RLA (0x0d) */
xcoff_reloc_type_fail, /* (0x0e) */
xcoff_reloc_type_noop, /* R_REF (0x0f) */
xcoff_reloc_type_fail, /* (0x10) */
xcoff_reloc_type_fail, /* (0x11) */
xcoff_reloc_type_toc, /* R_TRL (0x12) */
xcoff_reloc_type_toc, /* R_TRLA (0x13) */
xcoff_reloc_type_fail, /* R_RRTBI (0x14) */
xcoff_reloc_type_fail, /* R_RRTBA (0x15) */
xcoff_reloc_type_ba, /* R_CAI (0x16) */
xcoff_reloc_type_crel, /* R_CREL (0x17) */
xcoff_reloc_type_ba, /* R_RBA (0x18) */
xcoff_reloc_type_ba, /* R_RBAC (0x19) */
xcoff64_reloc_type_br, /* R_RBR (0x1a) */
xcoff_reloc_type_ba, /* R_RBRC (0x1b) */
};
/* coffcode.h needs these to be defined. */
/* Internalcoff.h and coffcode.h modify themselves based on these flags. */
#define XCOFF64
#define RS6000COFF_C 1
#define SELECT_RELOC(internal, howto) \
{ \
internal.r_type = howto->type; \
internal.r_size = \
((howto->complain_on_overflow == complain_overflow_signed \
? 0x80 \
: 0) \
| (howto->bitsize - 1)); \
}
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
#define COFF_LONG_FILENAMES
#define NO_COFF_SYMBOLS
#define RTYPE2HOWTO(cache_ptr, dst) xcoff64_rtype2howto (cache_ptr, dst)
#define coff_mkobject _bfd_xcoff_mkobject
#define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data
#define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
#define coff_bfd_reloc_type_lookup xcoff64_reloc_type_lookup
#define coff_bfd_reloc_name_lookup xcoff64_reloc_name_lookup
#ifdef AIX_CORE
extern const bfd_target * rs6000coff_core_p
(bfd *abfd);
extern bfd_boolean rs6000coff_core_file_matches_executable_p
(bfd *cbfd, bfd *ebfd);
extern char *rs6000coff_core_file_failing_command
(bfd *abfd);
extern int rs6000coff_core_file_failing_signal
(bfd *abfd);
#define CORE_FILE_P rs6000coff_core_p
#define coff_core_file_failing_command \
rs6000coff_core_file_failing_command
#define coff_core_file_failing_signal \
rs6000coff_core_file_failing_signal
#define coff_core_file_matches_executable_p \
rs6000coff_core_file_matches_executable_p
#define coff_core_file_pid \
_bfd_nocore_core_file_pid
#else
#define CORE_FILE_P _bfd_dummy_target
#define coff_core_file_failing_command \
_bfd_nocore_core_file_failing_command
#define coff_core_file_failing_signal \
_bfd_nocore_core_file_failing_signal
#define coff_core_file_matches_executable_p \
_bfd_nocore_core_file_matches_executable_p
#define coff_core_file_pid \
_bfd_nocore_core_file_pid
#endif
#define coff_SWAP_sym_in _bfd_xcoff64_swap_sym_in
#define coff_SWAP_sym_out _bfd_xcoff64_swap_sym_out
#define coff_SWAP_aux_in _bfd_xcoff64_swap_aux_in
#define coff_SWAP_aux_out _bfd_xcoff64_swap_aux_out
#define coff_swap_reloc_in xcoff64_swap_reloc_in
#define coff_swap_reloc_out xcoff64_swap_reloc_out
#define NO_COFF_RELOCS
#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata NULL
#endif
#include <stdint.h>
#include "coffcode.h"
/* For XCOFF64, the effective width of symndx changes depending on
whether we are the first entry. Sigh. */
static void
_bfd_xcoff64_swap_lineno_in (bfd *abfd, void *ext1, void *in1)
{
LINENO *ext = (LINENO *) ext1;
struct internal_lineno *in = (struct internal_lineno *) in1;
in->l_lnno = H_GET_32 (abfd, (ext->l_lnno));
if (in->l_lnno == 0)
in->l_addr.l_symndx = H_GET_32 (abfd, ext->l_addr.l_symndx);
else
in->l_addr.l_paddr = H_GET_64 (abfd, ext->l_addr.l_paddr);
}
static unsigned int
_bfd_xcoff64_swap_lineno_out (bfd *abfd, void *inp, void *outp)
{
struct internal_lineno *in = (struct internal_lineno *) inp;
struct external_lineno *ext = (struct external_lineno *) outp;
H_PUT_32 (abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
H_PUT_32 (abfd, in->l_lnno, (ext->l_lnno));
if (in->l_lnno == 0)
H_PUT_32 (abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
else
H_PUT_64 (abfd, in->l_addr.l_paddr, ext->l_addr.l_paddr);
return bfd_coff_linesz (abfd);
}
static void
_bfd_xcoff64_swap_sym_in (bfd *abfd, void *ext1, void *in1)
{
struct external_syment *ext = (struct external_syment *) ext1;
struct internal_syment *in = (struct internal_syment *) in1;
in->_n._n_n._n_zeroes = 0;
in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e_offset);
in->n_value = H_GET_64 (abfd, ext->e_value);
in->n_scnum = (short) H_GET_16 (abfd, ext->e_scnum);
in->n_type = H_GET_16 (abfd, ext->e_type);
in->n_sclass = H_GET_8 (abfd, ext->e_sclass);
in->n_numaux = H_GET_8 (abfd, ext->e_numaux);
}
static unsigned int
_bfd_xcoff64_swap_sym_out (bfd *abfd, void *inp, void *extp)
{
struct internal_syment *in = (struct internal_syment *) inp;
struct external_syment *ext = (struct external_syment *) extp;
H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e_offset);
H_PUT_64 (abfd, in->n_value, ext->e_value);
H_PUT_16 (abfd, in->n_scnum, ext->e_scnum);
H_PUT_16 (abfd, in->n_type, ext->e_type);
H_PUT_8 (abfd, in->n_sclass, ext->e_sclass);
H_PUT_8 (abfd, in->n_numaux, ext->e_numaux);
return bfd_coff_symesz (abfd);
}
static void
_bfd_xcoff64_swap_aux_in (bfd *abfd, void *ext1, int type, int in_class,
int indx, int numaux, void *in1)
{
union external_auxent *ext = (union external_auxent *) ext1;
union internal_auxent *in = (union internal_auxent *) in1;
switch (in_class)
{
case C_FILE:
if (ext->x_file.x_n.x_n.x_zeroes[0] == 0)
{
in->x_file.x_n.x_zeroes = 0;
in->x_file.x_n.x_offset =
H_GET_32 (abfd, ext->x_file.x_n.x_n.x_offset);
}
else
{
memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname, FILNMLEN);
}
goto end;
/* RS/6000 "csect" auxents */
case C_EXT:
case C_AIX_WEAKEXT:
case C_HIDEXT:
if (indx + 1 == numaux)
{
bfd_signed_vma h = 0;
bfd_vma l = 0;
h = H_GET_S32 (abfd, ext->x_csect.x_scnlen_hi);
l = H_GET_32 (abfd, ext->x_csect.x_scnlen_lo);
in->x_csect.x_scnlen.l = h << 32 | (l & 0xffffffff);
in->x_csect.x_parmhash = H_GET_32 (abfd, ext->x_csect.x_parmhash);
in->x_csect.x_snhash = H_GET_16 (abfd, ext->x_csect.x_snhash);
/* We don't have to hack bitfields in x_smtyp because it's
defined by shifts-and-ands, which are equivalent on all
byte orders. */
in->x_csect.x_smtyp = H_GET_8 (abfd, ext->x_csect.x_smtyp);
in->x_csect.x_smclas = H_GET_8 (abfd, ext->x_csect.x_smclas);
goto end;
}
break;
case C_STAT:
case C_LEAFSTAT:
case C_HIDDEN:
if (type == T_NULL)
{
/* PE defines some extra fields; we zero them out for
safety. */
in->x_scn.x_checksum = 0;
in->x_scn.x_associated = 0;
in->x_scn.x_comdat = 0;
goto end;
}
break;
}
if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
|| ISTAG (in_class))
{
in->x_sym.x_fcnary.x_fcn.x_lnnoptr
= H_GET_64 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
in->x_sym.x_fcnary.x_fcn.x_endndx.l
= H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
}
if (ISFCN (type))
{
in->x_sym.x_misc.x_fsize
= H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_fsize);
}
else
{
in->x_sym.x_misc.x_lnsz.x_lnno
= H_GET_32 (abfd, ext->x_sym.x_fcnary.x_lnsz.x_lnno);
in->x_sym.x_misc.x_lnsz.x_size
= H_GET_16 (abfd, ext->x_sym.x_fcnary.x_lnsz.x_size);
}
end: ;
}
static unsigned int
_bfd_xcoff64_swap_aux_out (bfd *abfd, void *inp, int type, int in_class,
int indx ATTRIBUTE_UNUSED,
int numaux ATTRIBUTE_UNUSED,
void *extp)
{
union internal_auxent *in = (union internal_auxent *) inp;
union external_auxent *ext = (union external_auxent *) extp;
memset (ext, 0, bfd_coff_auxesz (abfd));
switch (in_class)
{
case C_FILE:
if (in->x_file.x_n.x_zeroes == 0)
{
H_PUT_32 (abfd, 0, ext->x_file.x_n.x_n.x_zeroes);
H_PUT_32 (abfd, in->x_file.x_n.x_offset,
ext->x_file.x_n.x_n.x_offset);
}
else
{
memcpy (ext->x_file.x_n.x_fname, in->x_file.x_fname, FILNMLEN);
}
H_PUT_8 (abfd, _AUX_FILE, ext->x_auxtype.x_auxtype);
goto end;
/* RS/6000 "csect" auxents */
case C_EXT:
case C_AIX_WEAKEXT:
case C_HIDEXT:
if (indx + 1 == numaux)
{
bfd_vma temp;
temp = in->x_csect.x_scnlen.l & 0xffffffff;
H_PUT_32 (abfd, temp, ext->x_csect.x_scnlen_lo);
temp = in->x_csect.x_scnlen.l >> 32;
H_PUT_32 (abfd, temp, ext->x_csect.x_scnlen_hi);
H_PUT_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
H_PUT_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
/* We don't have to hack bitfields in x_smtyp because it's
defined by shifts-and-ands, which are equivalent on all
byte orders. */
H_PUT_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
H_PUT_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
H_PUT_8 (abfd, _AUX_CSECT, ext->x_auxtype.x_auxtype);
goto end;
}
break;
case C_STAT:
case C_LEAFSTAT:
case C_HIDDEN:
if (type == T_NULL)
{
goto end;
}
break;
}
if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
|| ISTAG (in_class))
{
H_PUT_64 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
H_PUT_8 (abfd, _AUX_FCN,
ext->x_auxtype.x_auxtype);
H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
ext->x_sym.x_fcnary.x_fcn.x_endndx);
}
if (ISFCN (type))
{
H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize,
ext->x_sym.x_fcnary.x_fcn.x_fsize);
}
else
{
H_PUT_32 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno,
ext->x_sym.x_fcnary.x_lnsz.x_lnno);
H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_size,
ext->x_sym.x_fcnary.x_lnsz.x_size);
}
end:
return bfd_coff_auxesz (abfd);
}
static bfd_boolean
_bfd_xcoff64_put_symbol_name (struct bfd_link_info *info,
struct bfd_strtab_hash *strtab,
struct internal_syment *sym,
const char *name)
{
bfd_boolean hash;
bfd_size_type indx;
hash = !info->traditional_format;
indx = _bfd_stringtab_add (strtab, name, hash, FALSE);
if (indx == (bfd_size_type) -1)
return FALSE;
sym->_n._n_n._n_zeroes = 0;
sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx;
return TRUE;
}
static bfd_boolean
_bfd_xcoff64_put_ldsymbol_name (bfd *abfd ATTRIBUTE_UNUSED,
struct xcoff_loader_info *ldinfo,
struct internal_ldsym *ldsym,
const char *name)
{
size_t len;
len = strlen (name);
if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
{
bfd_size_type newalc;
char *newstrings;
newalc = ldinfo->string_alc * 2;
if (newalc == 0)
newalc = 32;
while (ldinfo->string_size + len + 3 > newalc)
newalc *= 2;
newstrings = bfd_realloc (ldinfo->strings, newalc);
if (newstrings == NULL)
{
ldinfo->failed = TRUE;
return FALSE;
}
ldinfo->string_alc = newalc;
ldinfo->strings = newstrings;
}
bfd_put_16 (ldinfo->output_bfd, (bfd_vma) (len + 1),
ldinfo->strings + ldinfo->string_size);
strcpy (ldinfo->strings + ldinfo->string_size + 2, name);
ldsym->_l._l_l._l_zeroes = 0;
ldsym->_l._l_l._l_offset = ldinfo->string_size + 2;
ldinfo->string_size += len + 3;
return TRUE;
}
/* Routines to swap information in the XCOFF .loader section. If we
ever need to write an XCOFF loader, this stuff will need to be
moved to another file shared by the linker (which XCOFF calls the
``binder'') and the loader. */
/* Swap in the ldhdr structure. */
static void
xcoff64_swap_ldhdr_in (bfd *abfd,
const void *s,
struct internal_ldhdr *dst)
{
const struct external_ldhdr *src = (const struct external_ldhdr *) s;
dst->l_version = bfd_get_32 (abfd, src->l_version);
dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms);
dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc);
dst->l_istlen = bfd_get_32 (abfd, src->l_istlen);
dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid);
dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
dst->l_impoff = bfd_get_64 (abfd, src->l_impoff);
dst->l_stoff = bfd_get_64 (abfd, src->l_stoff);
dst->l_symoff = bfd_get_64 (abfd, src->l_symoff);
dst->l_rldoff = bfd_get_64 (abfd, src->l_rldoff);
}
/* Swap out the ldhdr structure. */
static void
xcoff64_swap_ldhdr_out (bfd *abfd, const struct internal_ldhdr *src, void *d)
{
struct external_ldhdr *dst = (struct external_ldhdr *) d;
bfd_put_32 (abfd, (bfd_vma) src->l_version, dst->l_version);
bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms);
bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc);
bfd_put_32 (abfd, src->l_istlen, dst->l_istlen);
bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid);
bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
bfd_put_64 (abfd, src->l_impoff, dst->l_impoff);
bfd_put_64 (abfd, src->l_stoff, dst->l_stoff);
bfd_put_64 (abfd, src->l_symoff, dst->l_symoff);
bfd_put_64 (abfd, src->l_rldoff, dst->l_rldoff);
}
/* Swap in the ldsym structure. */
static void
xcoff64_swap_ldsym_in (bfd *abfd, const void *s, struct internal_ldsym *dst)
{
const struct external_ldsym *src = (const struct external_ldsym *) s;
/* XCOFF64 does not use l_zeroes like XCOFF32
Set the internal l_zeroes to 0 so the common 32/64 code uses l_value
as an offset into the loader symbol table. */
dst->_l._l_l._l_zeroes = 0;
dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->l_offset);
dst->l_value = bfd_get_64 (abfd, src->l_value);
dst->l_scnum = bfd_get_16 (abfd, src->l_scnum);
dst->l_smtype = bfd_get_8 (abfd, src->l_smtype);
dst->l_smclas = bfd_get_8 (abfd, src->l_smclas);
dst->l_ifile = bfd_get_32 (abfd, src->l_ifile);
dst->l_parm = bfd_get_32 (abfd, src->l_parm);
}
/* Swap out the ldsym structure. */
static void
xcoff64_swap_ldsym_out (bfd *abfd, const struct internal_ldsym *src, void *d)
{
struct external_ldsym *dst = (struct external_ldsym *) d;
bfd_put_64 (abfd, src->l_value, dst->l_value);
bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset, dst->l_offset);
bfd_put_16 (abfd, (bfd_vma) src->l_scnum, dst->l_scnum);
bfd_put_8 (abfd, src->l_smtype, dst->l_smtype);
bfd_put_8 (abfd, src->l_smclas, dst->l_smclas);
bfd_put_32 (abfd, src->l_ifile, dst->l_ifile);
bfd_put_32 (abfd, src->l_parm, dst->l_parm);
}
static void
xcoff64_swap_reloc_in (bfd *abfd, void *s, void *d)
{
struct external_reloc *src = (struct external_reloc *) s;
struct internal_reloc *dst = (struct internal_reloc *) d;
memset (dst, 0, sizeof (struct internal_reloc));
dst->r_vaddr = bfd_get_64 (abfd, src->r_vaddr);
dst->r_symndx = bfd_get_32 (abfd, src->r_symndx);
dst->r_size = bfd_get_8 (abfd, src->r_size);
dst->r_type = bfd_get_8 (abfd, src->r_type);
}
static unsigned int
xcoff64_swap_reloc_out (bfd *abfd, void *s, void *d)
{
struct internal_reloc *src = (struct internal_reloc *) s;
struct external_reloc *dst = (struct external_reloc *) d;
bfd_put_64 (abfd, src->r_vaddr, dst->r_vaddr);
bfd_put_32 (abfd, src->r_symndx, dst->r_symndx);
bfd_put_8 (abfd, src->r_type, dst->r_type);
bfd_put_8 (abfd, src->r_size, dst->r_size);
return bfd_coff_relsz (abfd);
}
/* Swap in the ldrel structure. */
static void
xcoff64_swap_ldrel_in (bfd *abfd, const void *s, struct internal_ldrel *dst)
{
const struct external_ldrel *src = (const struct external_ldrel *) s;
dst->l_vaddr = bfd_get_64 (abfd, src->l_vaddr);
dst->l_symndx = bfd_get_32 (abfd, src->l_symndx);
dst->l_rtype = bfd_get_16 (abfd, src->l_rtype);
dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm);
}
/* Swap out the ldrel structure. */
static void
xcoff64_swap_ldrel_out (bfd *abfd, const struct internal_ldrel *src, void *d)
{
struct external_ldrel *dst = (struct external_ldrel *) d;
bfd_put_64 (abfd, src->l_vaddr, dst->l_vaddr);
bfd_put_16 (abfd, (bfd_vma) src->l_rtype, dst->l_rtype);
bfd_put_16 (abfd, (bfd_vma) src->l_rsecnm, dst->l_rsecnm);
bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
}
static bfd_boolean
xcoff64_write_object_contents (bfd *abfd)
{
asection *current;
bfd_boolean hasrelocs = FALSE;
bfd_boolean haslinno = FALSE;
file_ptr scn_base;
file_ptr reloc_base;
file_ptr lineno_base;
file_ptr sym_base;
unsigned long reloc_size = 0;
unsigned long lnno_size = 0;
asection *text_sec = NULL;
asection *data_sec = NULL;
asection *bss_sec = NULL;
struct internal_filehdr internal_f;
struct internal_aouthdr internal_a;
bfd_set_error (bfd_error_system_call);
if (! abfd->output_has_begun)
{
if (! bfd_coff_compute_section_file_positions (abfd))
return FALSE;
}
/* Work out the size of the reloc and linno areas. */
reloc_base = obj_relocbase (abfd);
for (current = abfd->sections; current != NULL; current = current->next)
reloc_size += current->reloc_count * bfd_coff_relsz (abfd);
lineno_base = reloc_base + reloc_size;
/* Make a pass through the symbol table to count line number entries and
put them into the correct asections. */
lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
sym_base = lineno_base + lnno_size;
/* Indicate in each section->line_filepos its actual file address. */
for (current = abfd->sections; current != NULL; current = current->next)
{
if (current->lineno_count)
{
current->line_filepos = lineno_base;
current->moving_line_filepos = lineno_base;
lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
}
else
{
current->line_filepos = 0;
}
if (current->reloc_count)
{
current->rel_filepos = reloc_base;
reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
}
else
{
current->rel_filepos = 0;
}
}
if ((abfd->flags & EXEC_P) != 0)
{
scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
}
else
{
scn_base = bfd_coff_filhsz (abfd);
internal_f.f_opthdr = 0;
}
internal_f.f_nscns = 0;
if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
return FALSE;
for (current = abfd->sections; current != NULL; current = current->next)
{
struct internal_scnhdr section;
struct external_scnhdr buff;
bfd_size_type amount;
internal_f.f_nscns++;
strncpy (section.s_name, current->name, SCNNMLEN);
section.s_vaddr = current->vma;
section.s_paddr = current->lma;
section.s_size = current->size;
/* If this section has no size or is unloadable then the scnptr
will be 0 too. */
if (current->size == 0
|| (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
{
section.s_scnptr = 0;
}
else
{
section.s_scnptr = current->filepos;
}
section.s_relptr = current->rel_filepos;
section.s_lnnoptr = current->line_filepos;
section.s_nreloc = current->reloc_count;
section.s_nlnno = current->lineno_count;
if (current->reloc_count != 0)
hasrelocs = TRUE;
if (current->lineno_count != 0)
haslinno = TRUE;
section.s_flags = sec_to_styp_flags (current->name, current->flags);
if (!strcmp (current->name, _TEXT))
{
text_sec = current;
}
else if (!strcmp (current->name, _DATA))
{
data_sec = current;
}
else if (!strcmp (current->name, _BSS))
{
bss_sec = current;
}
amount = bfd_coff_scnhsz (abfd);
if (bfd_coff_swap_scnhdr_out (abfd, §ion, &buff) == 0
|| bfd_bwrite (&buff, amount, abfd) != amount)
return FALSE;
}
internal_f.f_timdat = 0;
internal_f.f_flags = 0;
if (!hasrelocs)
internal_f.f_flags |= F_RELFLG;
if (!haslinno)
internal_f.f_flags |= F_LNNO;
if (abfd->flags & EXEC_P)
internal_f.f_flags |= F_EXEC;
/* FIXME: this is wrong for PPC_PE! */
if (bfd_little_endian (abfd))
internal_f.f_flags |= F_AR32WR;
else
internal_f.f_flags |= F_AR32W;
if ((abfd->flags & DYNAMIC) != 0)
internal_f.f_flags |= F_SHROBJ;
if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
internal_f.f_flags |= F_DYNLOAD;
memset (&internal_a, 0, sizeof internal_a);
internal_f.f_magic = bfd_xcoff_magic_number (abfd);
internal_a.magic = (abfd->flags & D_PAGED
? RS6K_AOUTHDR_ZMAGIC
: (abfd->flags & WP_TEXT
? RS6K_AOUTHDR_NMAGIC
: RS6K_AOUTHDR_OMAGIC));
/* FIXME: Does anybody ever set this to another value? */
internal_a.vstamp = 0;
/* Now should write relocs, strings, syms. */
obj_sym_filepos (abfd) = sym_base;
internal_f.f_symptr = 0;
internal_f.f_nsyms = 0;
/* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
backend linker, and obj_raw_syment_count is not valid until after
coff_write_symbols is called. */
if (bfd_get_symcount (abfd) != 0)
{
int firstundef;
if (!coff_renumber_symbols (abfd, &firstundef))
return FALSE;
coff_mangle_symbols (abfd);
if (! coff_write_symbols (abfd))
return FALSE;
if (! coff_write_linenumbers (abfd))
return FALSE;
if (! coff_write_relocs (abfd, firstundef))
return FALSE;
internal_f.f_symptr = sym_base;
internal_f.f_nsyms = bfd_get_symcount (abfd);
}
else if (obj_raw_syment_count (abfd) != 0)
{
internal_f.f_symptr = sym_base;
/* AIX appears to require that F_RELFLG not be set if there are
local symbols but no relocations. */
internal_f.f_flags &=~ F_RELFLG;
}
else
{
internal_f.f_flags |= F_LSYMS;
}
if (text_sec)
{
internal_a.tsize = text_sec->size;
internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
}
if (data_sec)
{
internal_a.dsize = data_sec->size;
internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
}
if (bss_sec)
{
internal_a.bsize = bss_sec->size;
if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
internal_a.data_start = bss_sec->vma;
}
internal_a.entry = bfd_get_start_address (abfd);
internal_f.f_nsyms = obj_raw_syment_count (abfd);
if (xcoff_data (abfd)->full_aouthdr)
{
bfd_vma toc;
asection *loader_sec;
internal_a.vstamp = 1;
internal_a.o_snentry = xcoff_data (abfd)->snentry;
if (internal_a.o_snentry == 0)
internal_a.entry = (bfd_vma) -1;
if (text_sec != NULL)
{
internal_a.o_sntext = text_sec->target_index;
internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
}
else
{
internal_a.o_sntext = 0;
internal_a.o_algntext = 0;
}
if (data_sec != NULL)
{
internal_a.o_sndata = data_sec->target_index;
internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
}
else
{
internal_a.o_sndata = 0;
internal_a.o_algndata = 0;
}
loader_sec = bfd_get_section_by_name (abfd, ".loader");
if (loader_sec != NULL)
internal_a.o_snloader = loader_sec->target_index;
else
internal_a.o_snloader = 0;
if (bss_sec != NULL)
internal_a.o_snbss = bss_sec->target_index;
else
internal_a.o_snbss = 0;
toc = xcoff_data (abfd)->toc;
internal_a.o_toc = toc;
internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
internal_a.o_modtype = xcoff_data (abfd)->modtype;
if (xcoff_data (abfd)->cputype != -1)
internal_a.o_cputype = xcoff_data (abfd)->cputype;
else
{