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gnu / binutils-gdb / refs/tags/gdb-9.1-release / . / bfd / coff-rs6000.c
blob: 86cf9e3e2a01ab08c38037889d687b8cf0c436ba [file] [log] [blame]
/* BFD back-end for IBM RS/6000 "XCOFF" files.
Copyright (C) 1990-2019 Free Software Foundation, Inc.
Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore.
Archive support from Damon A. Permezel.
Contributed by IBM Corporation and 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 "libiberty.h"
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
#include "coff/internal.h"
#include "coff/xcoff.h"
#include "coff/rs6000.h"
#include "libcoff.h"
#include "libxcoff.h"
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 reloc_howto_type *_bfd_xcoff_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
extern bfd_boolean _bfd_xcoff_slurp_armap (bfd *);
extern const bfd_target *_bfd_xcoff_archive_p (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 xcoff_swap_reloc_in (bfd *, void *, void *);
static unsigned int xcoff_swap_reloc_out (bfd *, void *, void *);
/* Forward declare xcoff_rtype2howto for coffcode.h macro. */
void xcoff_rtype2howto (arelent *, struct internal_reloc *);
/* coffcode.h needs these to be defined. */
#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) xcoff_rtype2howto (cache_ptr, dst)
#define coff_mkobject _bfd_xcoff_mkobject
#define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
#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_xcoff_swap_sym_in
#define coff_SWAP_sym_out _bfd_xcoff_swap_sym_out
#define coff_SWAP_aux_in _bfd_xcoff_swap_aux_in
#define coff_SWAP_aux_out _bfd_xcoff_swap_aux_out
#define coff_swap_reloc_in xcoff_swap_reloc_in
#define coff_swap_reloc_out xcoff_swap_reloc_out
#define NO_COFF_RELOCS
#ifndef bfd_pe_print_pdata
#define bfd_pe_print_pdata NULL
#endif
#include "coffcode.h"
/* The main body of code is in coffcode.h. */
static const char *normalize_filename (bfd *);
static bfd_boolean xcoff_write_armap_old
(bfd *, unsigned int, struct orl *, unsigned int, int);
static bfd_boolean xcoff_write_armap_big
(bfd *, unsigned int, struct orl *, unsigned int, int);
static bfd_boolean xcoff_write_archive_contents_old (bfd *);
static bfd_boolean xcoff_write_archive_contents_big (bfd *);
static void xcoff_swap_ldhdr_in (bfd *, const void *, struct internal_ldhdr *);
static void xcoff_swap_ldhdr_out (bfd *, const struct internal_ldhdr *, void *);
static void xcoff_swap_ldsym_in (bfd *, const void *, struct internal_ldsym *);
static void xcoff_swap_ldsym_out (bfd *, const struct internal_ldsym *, void *);
static void xcoff_swap_ldrel_in (bfd *, const void *, struct internal_ldrel *);
static void xcoff_swap_ldrel_out (bfd *, const struct internal_ldrel *, void *);
static bfd_boolean xcoff_ppc_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *, asection **);
static bfd_boolean _bfd_xcoff_put_ldsymbol_name
(bfd *, struct xcoff_loader_info *, struct internal_ldsym *, const char *);
static asection *xcoff_create_csect_from_smclas
(bfd *, union internal_auxent *, const char *);
static bfd_boolean xcoff_is_lineno_count_overflow (bfd *, bfd_vma);
static bfd_boolean xcoff_is_reloc_count_overflow (bfd *, bfd_vma);
static bfd_vma xcoff_loader_symbol_offset (bfd *, struct internal_ldhdr *);
static bfd_vma xcoff_loader_reloc_offset (bfd *, struct internal_ldhdr *);
static bfd_boolean xcoff_generate_rtinit
(bfd *, const char *, const char *, bfd_boolean);
static bfd_boolean do_pad (bfd *, unsigned int);
static bfd_boolean do_copy (bfd *, bfd *);
/* Relocation functions */
static bfd_boolean xcoff_reloc_type_br (XCOFF_RELOC_FUNCTION_ARGS);
static bfd_boolean xcoff_complain_overflow_dont_func
(XCOFF_COMPLAIN_FUNCTION_ARGS);
static bfd_boolean xcoff_complain_overflow_bitfield_func
(XCOFF_COMPLAIN_FUNCTION_ARGS);
static bfd_boolean xcoff_complain_overflow_signed_func
(XCOFF_COMPLAIN_FUNCTION_ARGS);
static bfd_boolean xcoff_complain_overflow_unsigned_func
(XCOFF_COMPLAIN_FUNCTION_ARGS);
bfd_boolean (*xcoff_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) */
xcoff_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) */
xcoff_reloc_type_br, /* R_RBR (0x1a) */
xcoff_reloc_type_ba, /* R_RBRC (0x1b) */
};
bfd_boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW])
(XCOFF_COMPLAIN_FUNCTION_ARGS) =
{
xcoff_complain_overflow_dont_func,
xcoff_complain_overflow_bitfield_func,
xcoff_complain_overflow_signed_func,
xcoff_complain_overflow_unsigned_func,
};
/* Information about one member of an archive. */
struct member_layout
{
/* The archive member that this structure describes. */
bfd *member;
/* The number of bytes of padding that must be inserted before the
start of the member in order to ensure that the section contents
are correctly aligned. */
unsigned int leading_padding;
/* The offset of MEMBER from the start of the archive (i.e. the end
of the leading padding). */
file_ptr offset;
/* The normalized name of MEMBER. */
const char *name;
/* The length of NAME, without padding. */
bfd_size_type namlen;
/* The length of NAME, with padding. */
bfd_size_type padded_namlen;
/* The size of MEMBER's header, including the name and magic sequence. */
bfd_size_type header_size;
/* The size of the MEMBER's contents. */
bfd_size_type contents_size;
/* The number of bytes of padding that must be inserted after MEMBER
in order to preserve even alignment. */
bfd_size_type trailing_padding;
};
/* A structure used for iterating over the members of an archive. */
struct archive_iterator
{
/* The archive itself. */
bfd *archive;
/* Information about the current archive member. */
struct member_layout current;
/* Information about the next archive member. MEMBER is null if there
are no more archive members, in which case OFFSET is the offset of
the first unused byte. */
struct member_layout next;
};
/* Initialize INFO so that it describes member MEMBER of archive ARCHIVE.
OFFSET is the even-padded offset of MEMBER, not including any leading
padding needed for section alignment. */
static void
member_layout_init (struct member_layout *info, bfd *archive,
bfd *member, file_ptr offset)
{
info->member = member;
info->leading_padding = 0;
if (member)
{
info->name = normalize_filename (member);
info->namlen = strlen (info->name);
info->padded_namlen = info->namlen + (info->namlen & 1);
if (xcoff_big_format_p (archive))
info->header_size = SIZEOF_AR_HDR_BIG;
else
info->header_size = SIZEOF_AR_HDR;
info->header_size += info->padded_namlen + SXCOFFARFMAG;
info->contents_size = arelt_size (member);
info->trailing_padding = info->contents_size & 1;
if (bfd_check_format (member, bfd_object)
&& bfd_get_flavour (member) == bfd_target_xcoff_flavour
&& (member->flags & DYNAMIC) != 0)
info->leading_padding
= (-(offset + info->header_size)
& ((1 << bfd_xcoff_text_align_power (member)) - 1));
}
info->offset = offset + info->leading_padding;
}
/* Set up ITERATOR to iterate through archive ARCHIVE. */
static void
archive_iterator_begin (struct archive_iterator *iterator,
bfd *archive)
{
iterator->archive = archive;
member_layout_init (&iterator->next, archive, archive->archive_head,
xcoff_big_format_p (archive)
? SIZEOF_AR_FILE_HDR_BIG
: SIZEOF_AR_FILE_HDR);
}
/* Make ITERATOR visit the first unvisited archive member. Return true
on success; return false if all members have been visited. */
static bfd_boolean
archive_iterator_next (struct archive_iterator *iterator)
{
if (!iterator->next.member)
return FALSE;
iterator->current = iterator->next;
member_layout_init (&iterator->next, iterator->archive,
iterator->current.member->archive_next,
iterator->current.offset
+ iterator->current.header_size
+ iterator->current.contents_size
+ iterator->current.trailing_padding);
return TRUE;
}
/* We use our own tdata type. Its first field is the COFF tdata type,
so the COFF routines are compatible. */
bfd_boolean
_bfd_xcoff_mkobject (bfd *abfd)
{
coff_data_type *coff;
bfd_size_type amt = sizeof (struct xcoff_tdata);
abfd->tdata.xcoff_obj_data = (struct xcoff_tdata *) bfd_zalloc (abfd, amt);
if (abfd->tdata.xcoff_obj_data == NULL)
return FALSE;
coff = coff_data (abfd);
coff->symbols = (coff_symbol_type *) NULL;
coff->conversion_table = (unsigned int *) NULL;
coff->raw_syments = (struct coff_ptr_struct *) NULL;
coff->relocbase = 0;
xcoff_data (abfd)->modtype = ('1' << 8) | 'L';
/* We set cputype to -1 to indicate that it has not been
initialized. */
xcoff_data (abfd)->cputype = -1;
xcoff_data (abfd)->csects = NULL;
xcoff_data (abfd)->debug_indices = NULL;
/* text section alignment is different than the default */
bfd_xcoff_text_align_power (abfd) = 2;
return TRUE;
}
/* Copy XCOFF data from one BFD to another. */
bfd_boolean
_bfd_xcoff_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
{
struct xcoff_tdata *ix, *ox;
asection *sec;
if (ibfd->xvec != obfd->xvec)
return TRUE;
ix = xcoff_data (ibfd);
ox = xcoff_data (obfd);
ox->full_aouthdr = ix->full_aouthdr;
ox->toc = ix->toc;
if (ix->sntoc == 0)
ox->sntoc = 0;
else
{
sec = coff_section_from_bfd_index (ibfd, ix->sntoc);
if (sec == NULL)
ox->sntoc = 0;
else
ox->sntoc = sec->output_section->target_index;
}
if (ix->snentry == 0)
ox->snentry = 0;
else
{
sec = coff_section_from_bfd_index (ibfd, ix->snentry);
if (sec == NULL)
ox->snentry = 0;
else
ox->snentry = sec->output_section->target_index;
}
bfd_xcoff_text_align_power (obfd) = bfd_xcoff_text_align_power (ibfd);
bfd_xcoff_data_align_power (obfd) = bfd_xcoff_data_align_power (ibfd);
ox->modtype = ix->modtype;
ox->cputype = ix->cputype;
ox->maxdata = ix->maxdata;
ox->maxstack = ix->maxstack;
return TRUE;
}
/* I don't think XCOFF really has a notion of local labels based on
name. This will mean that ld -X doesn't actually strip anything.
The AIX native linker does not have a -X option, and it ignores the
-x option. */
bfd_boolean
_bfd_xcoff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
const char *name ATTRIBUTE_UNUSED)
{
return FALSE;
}
void
_bfd_xcoff_swap_sym_in (bfd *abfd, void * ext1, void * in1)
{
SYMENT *ext = (SYMENT *)ext1;
struct internal_syment * in = (struct internal_syment *)in1;
if (ext->e.e_name[0] != 0)
{
memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN);
}
else
{
in->_n._n_n._n_zeroes = 0;
in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset);
}
in->n_value = H_GET_32 (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);
}
unsigned int
_bfd_xcoff_swap_sym_out (bfd *abfd, void * inp, void * extp)
{
struct internal_syment *in = (struct internal_syment *)inp;
SYMENT *ext =(SYMENT *)extp;
if (in->_n._n_name[0] != 0)
{
memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN);
}
else
{
H_PUT_32 (abfd, 0, ext->e.e.e_zeroes);
H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
}
H_PUT_32 (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);
}
void
_bfd_xcoff_swap_aux_in (bfd *abfd, void * ext1, int type, int in_class,
int indx, int numaux, void * in1)
{
AUXENT * ext = (AUXENT *)ext1;
union internal_auxent *in = (union internal_auxent *)in1;
switch (in_class)
{
case C_FILE:
if (ext->x_file.x_n.x_fname[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
{
if (numaux > 1)
{
if (indx == 0)
memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname,
numaux * sizeof (AUXENT));
}
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)
{
in->x_csect.x_scnlen.l = H_GET_32 (abfd, ext->x_csect.x_scnlen);
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);
in->x_csect.x_stab = H_GET_32 (abfd, ext->x_csect.x_stab);
in->x_csect.x_snstab = H_GET_16 (abfd, ext->x_csect.x_snstab);
goto end;
}
break;
case C_STAT:
case C_LEAFSTAT:
case C_HIDDEN:
if (type == T_NULL)
{
in->x_scn.x_scnlen = H_GET_32 (abfd, ext->x_scn.x_scnlen);
in->x_scn.x_nreloc = H_GET_16 (abfd, ext->x_scn.x_nreloc);
in->x_scn.x_nlinno = H_GET_16 (abfd, ext->x_scn.x_nlinno);
/* 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;
}
in->x_sym.x_tagndx.l = H_GET_32 (abfd, ext->x_sym.x_tagndx);
in->x_sym.x_tvndx = H_GET_16 (abfd, ext->x_sym.x_tvndx);
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_32 (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);
}
else
{
in->x_sym.x_fcnary.x_ary.x_dimen[0] =
H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
in->x_sym.x_fcnary.x_ary.x_dimen[1] =
H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
in->x_sym.x_fcnary.x_ary.x_dimen[2] =
H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
in->x_sym.x_fcnary.x_ary.x_dimen[3] =
H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
}
if (ISFCN (type))
{
in->x_sym.x_misc.x_fsize = H_GET_32 (abfd, ext->x_sym.x_misc.x_fsize);
}
else
{
in->x_sym.x_misc.x_lnsz.x_lnno =
H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno);
in->x_sym.x_misc.x_lnsz.x_size =
H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size);
}
end: ;
/* The semicolon is because MSVC doesn't like labels at
end of block. */
}
unsigned int
_bfd_xcoff_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;
AUXENT *ext = (AUXENT *)extp;
memset (ext, 0, bfd_coff_auxesz (abfd));
switch (in_class)
{
case C_FILE:
if (in->x_file.x_fname[0] == 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);
}
goto end;
/* RS/6000 "csect" auxents */
case C_EXT:
case C_AIX_WEAKEXT:
case C_HIDEXT:
if (indx + 1 == numaux)
{
H_PUT_32 (abfd, in->x_csect.x_scnlen.l, ext->x_csect.x_scnlen);
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_32 (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
H_PUT_16 (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
goto end;
}
break;
case C_STAT:
case C_LEAFSTAT:
case C_HIDDEN:
if (type == T_NULL)
{
H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
H_PUT_16 (abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
H_PUT_16 (abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
goto end;
}
break;
}
H_PUT_32 (abfd, in->x_sym.x_tagndx.l, ext->x_sym.x_tagndx);
H_PUT_16 (abfd, in->x_sym.x_tvndx, ext->x_sym.x_tvndx);
if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
|| ISTAG (in_class))
{
H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
ext->x_sym.x_fcnary.x_fcn.x_endndx);
}
else
{
H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0],
ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1],
ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2],
ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3],
ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
}
if (ISFCN (type))
H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize);
else
{
H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno,
ext->x_sym.x_misc.x_lnsz.x_lnno);
H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_size,
ext->x_sym.x_misc.x_lnsz.x_size);
}
end:
return bfd_coff_auxesz (abfd);
}
/* The XCOFF reloc table. Actually, XCOFF relocations specify the
bitsize and whether they are signed or not, along with a
conventional type. This table is for the types, which are used for
different algorithms for putting in the reloc. Many of these
relocs need special_function entries, which I have not written. */
reloc_howto_type xcoff_howto_table[] =
{
/* 0x00: Standard 32 bit relocation. */
HOWTO (R_POS, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_POS", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x01: 32 bit relocation, but store negative value. */
HOWTO (R_NEG, /* type */
0, /* rightshift */
-2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_NEG", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x02: 32 bit PC relative relocation. */
HOWTO (R_REL, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_REL", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x03: 16 bit TOC relative relocation. */
HOWTO (R_TOC, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_TOC", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x04: I don't really know what this is. */
HOWTO (R_RTB, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RTB", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x05: External TOC relative symbol. */
HOWTO (R_GL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_GL", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x06: Local TOC relative symbol. */
HOWTO (R_TCL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_TCL", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (7),
/* 0x08: Non modifiable absolute branch. */
HOWTO (R_BA, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_BA_26", /* name */
TRUE, /* partial_inplace */
0x03fffffc, /* src_mask */
0x03fffffc, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (9),
/* 0x0a: Non modifiable relative branch. */
HOWTO (R_BR, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_BR", /* name */
TRUE, /* partial_inplace */
0x03fffffc, /* src_mask */
0x03fffffc, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (0xb),
/* 0x0c: Indirect load. */
HOWTO (R_RL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RL", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x0d: Load address. */
HOWTO (R_RLA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RLA", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (0xe),
/* 0x0f: Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */
HOWTO (R_REF, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
1, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
0, /* special_function */
"R_REF", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
EMPTY_HOWTO (0x10),
EMPTY_HOWTO (0x11),
/* 0x12: TOC relative indirect load. */
HOWTO (R_TRL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_TRL", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x13: TOC relative load address. */
HOWTO (R_TRLA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_TRLA", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x14: Modifiable relative branch. */
HOWTO (R_RRTBI, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RRTBI", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x15: Modifiable absolute branch. */
HOWTO (R_RRTBA, /* type */
1, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RRTBA", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x16: Modifiable call absolute indirect. */
HOWTO (R_CAI, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_CAI", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x17: Modifiable call relative. */
HOWTO (R_CREL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_CREL", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x18: Modifiable branch absolute. */
HOWTO (R_RBA, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RBA", /* name */
TRUE, /* partial_inplace */
0x03fffffc, /* src_mask */
0x03fffffc, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x19: Modifiable branch absolute. */
HOWTO (R_RBAC, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RBAC", /* name */
TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x1a: Modifiable branch relative. */
HOWTO (R_RBR, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_RBR_26", /* name */
TRUE, /* partial_inplace */
0x03fffffc, /* src_mask */
0x03fffffc, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x1b: Modifiable branch absolute. */
HOWTO (R_RBRC, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_RBRC", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x1c: 16 bit Non modifiable absolute branch. */
HOWTO (R_BA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
0, /* special_function */
"R_BA_16", /* name */
TRUE, /* partial_inplace */
0xfffc, /* src_mask */
0xfffc, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x1d: Modifiable branch relative. */
HOWTO (R_RBR, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_RBR_16", /* name */
TRUE, /* partial_inplace */
0xfffc, /* src_mask */
0xfffc, /* dst_mask */
FALSE), /* pcrel_offset */
/* 0x1e: Modifiable branch relative. */
HOWTO (R_RBA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
0, /* special_function */
"R_RBA_16", /* name */
TRUE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
};
void
xcoff_rtype2howto (arelent *relent, struct internal_reloc *internal)
{
if (internal->r_type > R_RBRC)
abort ();
/* Default howto layout works most of the time */
relent->howto = &xcoff_howto_table[internal->r_type];
/* Special case some 16 bit reloc */
if (15 == (internal->r_size & 0x1f))
{
if (R_BA == internal->r_type)
relent->howto = &xcoff_howto_table[0x1c];
else if (R_RBR == internal->r_type)
relent->howto = &xcoff_howto_table[0x1d];
else if (R_RBA == internal->r_type)
relent->howto = &xcoff_howto_table[0x1e];
}
/* The r_size field of an XCOFF reloc encodes the bitsize of the
relocation, as well as indicating whether it is signed or not.
Doublecheck that the relocation information gathered from the
type matches this information. The bitsize is not significant
for R_REF relocs. */
if (relent->howto->dst_mask != 0
&& (relent->howto->bitsize
!= ((unsigned int) internal->r_size & 0x1f) + 1))
abort ();
}
reloc_howto_type *
_bfd_xcoff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
switch (code)
{
case BFD_RELOC_PPC_B26:
return &xcoff_howto_table[0xa];
case BFD_RELOC_PPC_BA16:
return &xcoff_howto_table[0x1c];
case BFD_RELOC_PPC_BA26:
return &xcoff_howto_table[8];
case BFD_RELOC_PPC_TOC16:
return &xcoff_howto_table[3];
case BFD_RELOC_16:
/* Note that this relocation is only internally used by gas. */
return &xcoff_howto_table[0xc];
case BFD_RELOC_PPC_B16:
return &xcoff_howto_table[0x1d];
case BFD_RELOC_32:
case BFD_RELOC_CTOR:
return &xcoff_howto_table[0];
case BFD_RELOC_NONE:
return &xcoff_howto_table[0xf];
default:
return NULL;
}
}
static reloc_howto_type *
_bfd_xcoff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
const char *r_name)
{
unsigned int i;
for (i = 0;
i < sizeof (xcoff_howto_table) / sizeof (xcoff_howto_table[0]);
i++)
if (xcoff_howto_table[i].name != NULL
&& strcasecmp (xcoff_howto_table[i].name, r_name) == 0)
return &xcoff_howto_table[i];
return NULL;
}
/* XCOFF archive support. The original version of this code was by
Damon A. Permezel. It was enhanced to permit cross support, and
writing archive files, by Ian Lance Taylor, Cygnus Support.
XCOFF uses its own archive format. Everything is hooked together
with file offset links, so it is possible to rapidly update an
archive in place. Of course, we don't do that. An XCOFF archive
has a real file header, not just an ARMAG string. The structure of
the file header and of each archive header appear below.
An XCOFF archive also has a member table, which is a list of
elements in the archive (you can get that by looking through the
linked list, but you have to read a lot more of the file). The
member table has a normal archive header with an empty name. It is
normally (and perhaps must be) the second to last entry in the
archive. The member table data is almost printable ASCII. It
starts with a 12 character decimal string which is the number of
entries in the table. For each entry it has a 12 character decimal
string which is the offset in the archive of that member. These
entries are followed by a series of null terminated strings which
are the member names for each entry.
Finally, an XCOFF archive has a global symbol table, which is what
we call the armap. The global symbol table has a normal archive
header with an empty name. It is normally (and perhaps must be)
the last entry in the archive. The contents start with a four byte
binary number which is the number of entries. This is followed by
a that many four byte binary numbers; each is the file offset of an
entry in the archive. These numbers are followed by a series of
null terminated strings, which are symbol names.
AIX 4.3 introduced a new archive format which can handle larger
files and also 32- and 64-bit objects in the same archive. The
things said above remain true except that there is now more than
one global symbol table. The one is used to index 32-bit objects,
the other for 64-bit objects.
The new archives (recognizable by the new ARMAG string) has larger
field lengths so that we cannot really share any code. Also we have
to take care that we are not generating the new form of archives
on AIX 4.2 or earlier systems. */
/* PR 21786: The PE/COFF standard does not require NUL termination for any of
the ASCII fields in the archive headers. So in order to be able to extract
numerical values we provide our own versions of strtol and strtoll which
take a maximum length as an additional parameter. Also - just to save space,
we omit the endptr return parameter, since we know that it is never used. */
static long
_bfd_strntol (const char * nptr, int base, unsigned int maxlen)
{
char buf[24]; /* Should be enough. */
BFD_ASSERT (maxlen < (sizeof (buf) - 1));
memcpy (buf, nptr, maxlen);
buf[maxlen] = 0;
return strtol (buf, NULL, base);
}
static long long
_bfd_strntoll (const char * nptr, int base, unsigned int maxlen)
{
char buf[32]; /* Should be enough. */
BFD_ASSERT (maxlen < (sizeof (buf) - 1));
memcpy (buf, nptr, maxlen);
buf[maxlen] = 0;
return strtoll (buf, NULL, base);
}
/* Macro to read an ASCII value stored in an archive header field. */
#define GET_VALUE_IN_FIELD(VAR, FIELD, BASE) \
do \
{ \
(VAR) = (sizeof (VAR) > sizeof (long) \
? _bfd_strntoll (FIELD, BASE, sizeof FIELD) \
: _bfd_strntol (FIELD, BASE, sizeof FIELD)); \
} \
while (0)
#define EQ_VALUE_IN_FIELD(VAR, FIELD, BASE) \
(sizeof (VAR) > sizeof (long) \
? (VAR) == _bfd_strntoll (FIELD, BASE, sizeof FIELD) \
: (VAR) == _bfd_strntol (FIELD, BASE, sizeof FIELD))
/* Read in the armap of an XCOFF archive. */
bfd_boolean
_bfd_xcoff_slurp_armap (bfd *abfd)
{
file_ptr off;
size_t namlen;
bfd_size_type sz;
bfd_byte *contents, *cend;
bfd_vma c, i;
carsym *arsym;
bfd_byte *p;
if (xcoff_ardata (abfd) == NULL)
{
abfd->has_armap = FALSE;
return TRUE;
}
if (! xcoff_big_format_p (abfd))
{
/* This is for the old format. */
struct xcoff_ar_hdr hdr;
GET_VALUE_IN_FIELD (off, xcoff_ardata (abfd)->symoff, 10);
if (off == 0)
{
abfd->has_armap = FALSE;
return TRUE;
}
if (bfd_seek (abfd, off, SEEK_SET) != 0)
return FALSE;
/* The symbol table starts with a normal archive header. */
if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
!= SIZEOF_AR_HDR)
return FALSE;
/* Skip the name (normally empty). */
GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
if (bfd_seek (abfd, off, SEEK_CUR) != 0)
return FALSE;
GET_VALUE_IN_FIELD (sz, hdr.size, 10);
/* Read in the entire symbol table. */
contents = (bfd_byte *) bfd_alloc (abfd, sz);
if (contents == NULL)
return FALSE;
if (bfd_bread (contents, sz, abfd) != sz)
return FALSE;
/* The symbol table starts with a four byte count. */
c = H_GET_32 (abfd, contents);
if (c * 4 >= sz)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
bfd_ardata (abfd)->symdefs =
((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
if (bfd_ardata (abfd)->symdefs == NULL)
return FALSE;
/* After the count comes a list of four byte file offsets. */
for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 4;
i < c;
++i, ++arsym, p += 4)
arsym->file_offset = H_GET_32 (abfd, p);
}
else
{
/* This is for the new format. */
struct xcoff_ar_hdr_big hdr;
GET_VALUE_IN_FIELD (off, xcoff_ardata_big (abfd)->symoff, 10);
if (off == 0)
{
abfd->has_armap = FALSE;
return TRUE;
}
if (bfd_seek (abfd, off, SEEK_SET) != 0)
return FALSE;
/* The symbol table starts with a normal archive header. */
if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
!= SIZEOF_AR_HDR_BIG)
return FALSE;
/* Skip the name (normally empty). */
GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
if (bfd_seek (abfd, off, SEEK_CUR) != 0)
return FALSE;
GET_VALUE_IN_FIELD (sz, hdr.size, 10);
/* Read in the entire symbol table. */
contents = (bfd_byte *) bfd_alloc (abfd, sz);
if (contents == NULL)
return FALSE;
if (bfd_bread (contents, sz, abfd) != sz)
return FALSE;
/* The symbol table starts with an eight byte count. */
c = H_GET_64 (abfd, contents);
if (c * 8 >= sz)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
bfd_ardata (abfd)->symdefs =
((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
if (bfd_ardata (abfd)->symdefs == NULL)
return FALSE;
/* After the count comes a list of eight byte file offsets. */
for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8;
i < c;
++i, ++arsym, p += 8)
arsym->file_offset = H_GET_64 (abfd, p);
}
/* After the file offsets come null terminated symbol names. */
cend = contents + sz;
for (i = 0, arsym = bfd_ardata (abfd)->symdefs;
i < c;
++i, ++arsym, p += strlen ((char *) p) + 1)
{
if (p >= cend)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
arsym->name = (char *) p;
}
bfd_ardata (abfd)->symdef_count = c;
abfd->has_armap = TRUE;
return TRUE;
}
/* See if this is an XCOFF archive. */
const bfd_target *
_bfd_xcoff_archive_p (bfd *abfd)
{
struct artdata *tdata_hold;
char magic[SXCOFFARMAG];
bfd_size_type amt = SXCOFFARMAG;
if (bfd_bread (magic, amt, abfd) != amt)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
if (strncmp (magic, XCOFFARMAG, SXCOFFARMAG) != 0
&& strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0)
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
tdata_hold = bfd_ardata (abfd);
amt = sizeof (struct artdata);
bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
if (bfd_ardata (abfd) == (struct artdata *) NULL)
goto error_ret_restore;
/* Cleared by bfd_zalloc above.
bfd_ardata (abfd)->cache = NULL;
bfd_ardata (abfd)->archive_head = NULL;
bfd_ardata (abfd)->symdefs = NULL;
bfd_ardata (abfd)->extended_names = NULL;
bfd_ardata (abfd)->extended_names_size = 0; */
/* Now handle the two formats. */
if (magic[1] != 'b')
{
/* This is the old format. */
struct xcoff_ar_file_hdr hdr;
/* Copy over the magic string. */
memcpy (hdr.magic, magic, SXCOFFARMAG);
/* Now read the rest of the file header. */
amt = SIZEOF_AR_FILE_HDR - SXCOFFARMAG;
if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
goto error_ret;
}
GET_VALUE_IN_FIELD (bfd_ardata (abfd)->first_file_filepos,
hdr.firstmemoff, 10);
amt = SIZEOF_AR_FILE_HDR;
bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
if (bfd_ardata (abfd)->tdata == NULL)
goto error_ret;
memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR);
}
else
{
/* This is the new format. */
struct xcoff_ar_file_hdr_big hdr;
/* Copy over the magic string. */
memcpy (hdr.magic, magic, SXCOFFARMAG);
/* Now read the rest of the file header. */
amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG;
if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
goto error_ret;
}
bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff,
(const char **) 0,
10);
amt = SIZEOF_AR_FILE_HDR_BIG;
bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
if (bfd_ardata (abfd)->tdata == NULL)
goto error_ret;
memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG);
}
if (! _bfd_xcoff_slurp_armap (abfd))
{
error_ret:
bfd_release (abfd, bfd_ardata (abfd));
error_ret_restore:
bfd_ardata (abfd) = tdata_hold;
return NULL;
}
return abfd->xvec;
}
/* Read the archive header in an XCOFF archive. */
void *
_bfd_xcoff_read_ar_hdr (bfd *abfd)
{
bfd_size_type namlen;
struct areltdata *ret;
bfd_size_type amt = sizeof (struct areltdata);
ret = (struct areltdata *) bfd_zmalloc (amt);
if (ret == NULL)
return NULL;
if (! xcoff_big_format_p (abfd))
{
struct xcoff_ar_hdr hdr;
struct xcoff_ar_hdr *hdrp;
if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
!= SIZEOF_AR_HDR)
{
free (ret);
return NULL;
}
GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
amt = SIZEOF_AR_HDR + namlen + 1;
hdrp = (struct xcoff_ar_hdr *) bfd_alloc (abfd, amt);
if (hdrp == NULL)
{
free (ret);
return NULL;
}
memcpy (hdrp, &hdr, SIZEOF_AR_HDR);
if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR, namlen, abfd) != namlen)
{
free (ret);
return NULL;
}
((char *) hdrp)[SIZEOF_AR_HDR + namlen] = '\0';
ret->arch_header = (char *) hdrp;
GET_VALUE_IN_FIELD (ret->parsed_size, hdr.size, 10);
ret->filename = (char *) hdrp + SIZEOF_AR_HDR;
}
else
{
struct xcoff_ar_hdr_big hdr;
struct xcoff_ar_hdr_big *hdrp;
if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
!= SIZEOF_AR_HDR_BIG)
{
free (ret);
return NULL;
}
GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
amt = SIZEOF_AR_HDR_BIG + namlen + 1;
hdrp = (struct xcoff_ar_hdr_big *) bfd_alloc (abfd, amt);
if (hdrp == NULL)
{
free (ret);
return NULL;
}
memcpy (hdrp, &hdr, SIZEOF_AR_HDR_BIG);
if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR_BIG, namlen, abfd) != namlen)
{
free (ret);
return NULL;
}
((char *) hdrp)[SIZEOF_AR_HDR_BIG + namlen] = '\0';
ret->arch_header = (char *) hdrp;
GET_VALUE_IN_FIELD (ret->parsed_size, hdr.size, 10);
ret->filename = (char *) hdrp + SIZEOF_AR_HDR_BIG;
}
/* Skip over the XCOFFARFMAG at the end of the file name. */
if (bfd_seek (abfd, (file_ptr) ((namlen & 1) + SXCOFFARFMAG), SEEK_CUR) != 0)
return NULL;
return ret;
}
/* Open the next element in an XCOFF archive. */
bfd *
_bfd_xcoff_openr_next_archived_file (bfd *archive, bfd *last_file)
{
file_ptr filestart;
if (xcoff_ardata (archive) == NULL)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
if (! xcoff_big_format_p (archive))
{
if (last_file == NULL)
filestart = bfd_ardata (archive)->first_file_filepos;
else
GET_VALUE_IN_FIELD (filestart, arch_xhdr (last_file)->nextoff, 10);
if (filestart == 0
|| EQ_VALUE_IN_FIELD (filestart, xcoff_ardata (archive)->memoff, 10)
|| EQ_VALUE_IN_FIELD (filestart, xcoff_ardata (archive)->symoff, 10))
{
bfd_set_error (bfd_error_no_more_archived_files);
return NULL;
}
}
else
{
if (last_file == NULL)
filestart = bfd_ardata (archive)->first_file_filepos;
else
GET_VALUE_IN_FIELD (filestart, arch_xhdr_big (last_file)->nextoff, 10);
if (filestart == 0
|| EQ_VALUE_IN_FIELD (filestart, xcoff_ardata_big (archive)->memoff, 10)
|| EQ_VALUE_IN_FIELD (filestart, xcoff_ardata_big (archive)->symoff, 10))
{
bfd_set_error (bfd_error_no_more_archived_files);
return NULL;
}
}
return _bfd_get_elt_at_filepos (archive, filestart);
}
/* Stat an element in an XCOFF archive. */
int
_bfd_xcoff_stat_arch_elt (bfd *abfd, struct stat *s)
{
if (abfd->arelt_data == NULL)
{
bfd_set_error (bfd_error_invalid_operation);
return -1;
}
if (! xcoff_big_format_p (abfd->my_archive))
{
struct xcoff_ar_hdr *hdrp = arch_xhdr (abfd);
GET_VALUE_IN_FIELD (s->st_mtime, hdrp->date, 10);
GET_VALUE_IN_FIELD (s->st_uid, hdrp->uid, 10);
GET_VALUE_IN_FIELD (s->st_gid, hdrp->gid, 10);
GET_VALUE_IN_FIELD (s->st_mode, hdrp->mode, 8);
s->st_size = arch_eltdata (abfd)->parsed_size;
}
else
{
struct xcoff_ar_hdr_big *hdrp = arch_xhdr_big (abfd);
GET_VALUE_IN_FIELD (s->st_mtime, hdrp->date, 10);
GET_VALUE_IN_FIELD (s->st_uid, hdrp->uid, 10);
GET_VALUE_IN_FIELD (s->st_gid, hdrp->gid, 10);
GET_VALUE_IN_FIELD (s->st_mode, hdrp->mode, 8);
s->st_size = arch_eltdata (abfd)->parsed_size;
}
return 0;
}
/* Normalize a file name for inclusion in an archive. */
static const char *
normalize_filename (bfd *abfd)
{
const char *file;
const char *filename;
file = bfd_get_filename (abfd);
filename = strrchr (file, '/');
if (filename != NULL)
filename++;
else
filename = file;
return filename;
}
/* Write out an XCOFF armap. */
static bfd_boolean
xcoff_write_armap_old (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
struct orl *map, unsigned int orl_count, int stridx)
{
struct archive_iterator iterator;
struct xcoff_ar_hdr hdr;
char *p;
unsigned char buf[4];
unsigned int i;
memset (&hdr, 0, sizeof hdr);
sprintf (hdr.size, "%ld", (long) (4 + orl_count * 4 + stridx));
sprintf (hdr.nextoff, "%d", 0);
memcpy (hdr.prevoff, xcoff_ardata (abfd)->memoff, XCOFFARMAG_ELEMENT_SIZE);
sprintf (hdr.date, "%d", 0);
sprintf (hdr.uid, "%d", 0);
sprintf (hdr.gid, "%d", 0);
sprintf (hdr.mode, "%d", 0);
sprintf (hdr.namlen, "%d", 0);
/* We need spaces, not null bytes, in the header. */
for (p = (char *) &hdr; p < (char *) &hdr + SIZEOF_AR_HDR; p++)
if (*p == '\0')
*p = ' ';
if (bfd_bwrite (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
!= SIZEOF_AR_HDR
|| (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
!= SXCOFFARFMAG))
return FALSE;
H_PUT_32 (abfd, orl_count, buf);
if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
return FALSE;
i = 0;
archive_iterator_begin (&iterator, abfd);
while (i < orl_count && archive_iterator_next (&iterator))
while (map[i].u.abfd == iterator.current.member)
{
H_PUT_32 (abfd, iterator.current.offset, buf);
if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
return FALSE;
++i;
}
for (i = 0; i < orl_count; i++)
{
const char *name;
size_t namlen;
name = *map[i].name;
namlen = strlen (name);
if (bfd_bwrite (name, (bfd_size_type) (namlen + 1), abfd) != namlen + 1)
return FALSE;
}
if ((stridx & 1) != 0)
{
char b;
b = '\0';
if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
return FALSE;
}
return TRUE;
}
static char buff20[XCOFFARMAGBIG_ELEMENT_SIZE + 1];
#if BFD_HOST_64BIT_LONG
#define FMT20 "%-20ld"
#elif defined (__MSVCRT__)
#define FMT20 "%-20I64d"
#else
#define FMT20 "%-20lld"
#endif
#define FMT12 "%-12d"
#define FMT12_OCTAL "%-12o"
#define FMT4 "%-4d"
#define PRINT20(d, v) \
sprintf (buff20, FMT20, (bfd_uint64_t)(v)), \
memcpy ((void *) (d), buff20, 20)
#define PRINT12(d, v) \
sprintf (buff20, FMT12, (int)(v)), \
memcpy ((void *) (d), buff20, 12)
#define PRINT12_OCTAL(d, v) \
sprintf (buff20, FMT12_OCTAL, (unsigned int)(v)), \
memcpy ((void *) (d), buff20, 12)
#define PRINT4(d, v) \
sprintf (buff20, FMT4, (int)(v)), \
memcpy ((void *) (d), buff20, 4)
#define READ20(d, v) \
buff20[20] = 0, \
memcpy (buff20, (d), 20), \
(v) = bfd_scan_vma (buff20, (const char **) NULL, 10)
static bfd_boolean
do_pad (bfd *abfd, unsigned int number)
{
bfd_byte b = 0;
/* Limit pad to <= 4096. */
if (number > 4096)
return FALSE;
while (number--)
if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
return FALSE;
return TRUE;
}
static bfd_boolean
do_copy (bfd *out_bfd, bfd *in_bfd)
{
bfd_size_type remaining;
bfd_byte buffer[DEFAULT_BUFFERSIZE];
if (bfd_seek (in_bfd, (file_ptr) 0, SEEK_SET) != 0)
return FALSE;
remaining = arelt_size (in_bfd);
while (remaining >= DEFAULT_BUFFERSIZE)
{
if (bfd_bread (buffer, DEFAULT_BUFFERSIZE, in_bfd) != DEFAULT_BUFFERSIZE
|| bfd_bwrite (buffer, DEFAULT_BUFFERSIZE, out_bfd) != DEFAULT_BUFFERSIZE)
return FALSE;
remaining -= DEFAULT_BUFFERSIZE;
}
if (remaining)
{
if (bfd_bread (buffer, remaining, in_bfd) != remaining
|| bfd_bwrite (buffer, remaining, out_bfd) != remaining)
return FALSE;
}
return TRUE;
}
static bfd_boolean
xcoff_write_armap_big (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
struct orl *map, unsigned int orl_count, int stridx)
{
struct archive_iterator iterator;
struct xcoff_ar_file_hdr_big *fhdr;
bfd_vma i, sym_32, sym_64, str_32, str_64;
const bfd_arch_info_type *arch_info;
bfd *current_bfd;
size_t string_length;
file_ptr nextoff, prevoff;
/* First, we look through the symbols and work out which are
from 32-bit objects and which from 64-bit ones. */
sym_32 = sym_64 = str_32 = str_64 = 0;
i = 0;
for (current_bfd = abfd->archive_head;
current_bfd != NULL && i < orl_count;
current_bfd = current_bfd->archive_next)
{
arch_info = bfd_get_arch_info (current_bfd);
while (map[i].u.abfd == current_bfd)
{
string_length = strlen (*map[i].name) + 1;
if (arch_info->bits_per_address == 64)
{
sym_64++;
str_64 += string_length;
}
else
{
sym_32++;
str_32 += string_length;
}
i++;
}
}
/* A quick sanity check... */
BFD_ASSERT (sym_64 + sym_32 == orl_count);
/* Explicit cast to int for compiler. */
BFD_ASSERT ((int)(str_64 + str_32) == stridx);
fhdr = xcoff_ardata_big (abfd);
/* xcoff_write_archive_contents_big passes nextoff in symoff. */
READ20 (fhdr->memoff, prevoff);
READ20 (fhdr->symoff, nextoff);
BFD_ASSERT (nextoff == bfd_tell (abfd));
/* Write out the symbol table.
Layout :
standard big archive header
0x0000 ar_size [0x14]
0x0014 ar_nxtmem [0x14]
0x0028 ar_prvmem [0x14]
0x003C ar_date [0x0C]
0x0048 ar_uid [0x0C]
0x0054 ar_gid [0x0C]
0x0060 ar_mod [0x0C]
0x006C ar_namelen[0x04]
0x0070 ar_fmag [SXCOFFARFMAG]
Symbol table
0x0072 num_syms [0x08], binary
0x0078 offsets [0x08 * num_syms], binary
0x0086 + 0x08 * num_syms names [??]
?? pad to even bytes.
*/
if (sym_32)
{
struct xcoff_ar_hdr_big *hdr;
char *symbol_table;
char *st;
bfd_vma symbol_table_size =
SIZEOF_AR_HDR_BIG
+ SXCOFFARFMAG
+ 8
+ 8 * sym_32
+ str_32 + (str_32 & 1);
symbol_table = bfd_zmalloc (symbol_table_size);
if (symbol_table == NULL)
return FALSE;
hdr = (struct xcoff_ar_hdr_big *) symbol_table;
PRINT20 (hdr->size, 8 + 8 * sym_32 + str_32 + (str_32 & 1));
if (sym_64)
PRINT20 (hdr->nextoff, nextoff + symbol_table_size);
else
PRINT20 (hdr->nextoff, 0);
PRINT20 (hdr->prevoff, prevoff);
PRINT12 (hdr->date, 0);
PRINT12 (hdr->uid, 0);
PRINT12 (hdr->gid, 0);
PRINT12 (hdr->mode, 0);
PRINT4 (hdr->namlen, 0) ;
st = symbol_table + SIZEOF_AR_HDR_BIG;
memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
st += SXCOFFARFMAG;
bfd_h_put_64 (abfd, sym_32, st);
st += 8;
/* loop over the 32 bit offsets */
i = 0;
archive_iterator_begin (&iterator, abfd);
while (i < orl_count && archive_iterator_next (&iterator))
{
arch_info = bfd_get_arch_info (iterator.current.member);
while (map[i].u.abfd == iterator.current.member)
{
if (arch_info->bits_per_address == 32)
{
bfd_h_put_64 (abfd, iterator.current.offset, st);
st += 8;
}
i++;
}
}
/* loop over the 32 bit symbol names */
i = 0;
for (current_bfd = abfd->archive_head;
current_bfd != NULL && i < orl_count;
current_bfd = current_bfd->archive_next)
{
arch_info = bfd_get_arch_info (current_bfd);
while (map[i].u.abfd == current_bfd)
{
if (arch_info->bits_per_address == 32)
{
string_length = sprintf (st, "%s", *map[i].name);
st += string_length + 1;
}
i++;
}
}
bfd_bwrite (symbol_table, symbol_table_size, abfd);
free (symbol_table);
prevoff = nextoff;
nextoff = nextoff + symbol_table_size;
}
else
PRINT20 (fhdr->symoff, 0);
if (sym_64)
{
struct xcoff_ar_hdr_big *hdr;
char *symbol_table;
char *st;
bfd_vma symbol_table_size =
SIZEOF_AR_HDR_BIG
+ SXCOFFARFMAG
+ 8
+ 8 * sym_64
+ str_64 + (str_64 & 1);
symbol_table = bfd_zmalloc (symbol_table_size);
if (symbol_table == NULL)
return FALSE;
hdr = (struct xcoff_ar_hdr_big *) symbol_table;
PRINT20 (hdr->size, 8 + 8 * sym_64 + str_64 + (str_64 & 1));
PRINT20 (hdr->nextoff, 0);
PRINT20 (hdr->prevoff, prevoff);
PRINT12 (hdr->date, 0);
PRINT12 (hdr->uid, 0);
PRINT12 (hdr->gid, 0);
PRINT12 (hdr->mode, 0);
PRINT4 (hdr->namlen, 0);
st = symbol_table + SIZEOF_AR_HDR_BIG;
memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
st += SXCOFFARFMAG;
bfd_h_put_64 (abfd, sym_64, st);
st += 8;
/* loop over the 64 bit offsets */
i = 0;
archive_iterator_begin (&iterator, abfd);
while (i < orl_count && archive_iterator_next (&iterator))
{
arch_info = bfd_get_arch_info (iterator.current.member);
while (map[i].u.abfd == iterator.current.member)
{
if (arch_info->bits_per_address == 64)
{
bfd_h_put_64 (abfd, iterator.current.offset, st);
st += 8;
}
i++;
}
}
/* loop over the 64 bit symbol names */
i = 0;
for (current_bfd = abfd->archive_head;
current_bfd != NULL && i < orl_count;
current_bfd = current_bfd->archive_next)
{
arch_info = bfd_get_arch_info (current_bfd);
while (map[i].u.abfd == current_bfd)
{
if (arch_info->bits_per_address == 64)
{
string_length = sprintf (st, "%s", *map[i].name);
st += string_length + 1;
}
i++;
}
}
bfd_bwrite (symbol_table, symbol_table_size, abfd);
free (symbol_table);
PRINT20 (fhdr->symoff64, nextoff);
}
else
PRINT20 (fhdr->symoff64, 0);
return TRUE;
}
bfd_boolean
_bfd_xcoff_write_armap (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
struct orl *map, unsigned int orl_count, int stridx)
{
if (! xcoff_big_format_p (abfd))
return xcoff_write_armap_old (abfd, elength, map, orl_count, stridx);
else
return xcoff_write_armap_big (abfd, elength, map, orl_count, stridx);
}
/* Write out an XCOFF archive. We always write an entire archive,
rather than fussing with the freelist and so forth. */
static bfd_boolean
xcoff_write_archive_contents_old (bfd *abfd)
{
struct archive_iterator iterator;
struct xcoff_ar_file_hdr fhdr;
bfd_size_type count;
bfd_size_type total_namlen;
file_ptr *offsets;
bfd_boolean makemap;
bfd_boolean hasobjects;
file_ptr prevoff, nextoff;
bfd *sub;
size_t i;
struct xcoff_ar_hdr ahdr;
bfd_size_type size;
char *p;
char decbuf[XCOFFARMAG_ELEMENT_SIZE + 1];
memset (&fhdr, 0, sizeof fhdr);
(void) memcpy (fhdr.magic, XCOFFARMAG, SXCOFFARMAG);
sprintf (fhdr.firstmemoff, "%d", SIZEOF_AR_FILE_HDR);
sprintf (fhdr.freeoff, "%d", 0);
count = 0;
total_namlen = 0;
for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
{
++count;
total_namlen += strlen (normalize_filename (sub)) + 1;
if (sub->arelt_data == NULL)
{
sub->arelt_data = bfd_zmalloc (sizeof (struct areltdata));
if (sub->arelt_data == NULL)
return FALSE;
}
if (arch_xhdr (sub) == NULL)
{
struct xcoff_ar_hdr *ahdrp;
struct stat s;
if (stat (bfd_get_filename (sub), &s) != 0)
{
bfd_set_error (bfd_error_system_call);
return FALSE;
}
ahdrp = bfd_zalloc (sub, sizeof (*ahdrp));
if (ahdrp == NULL)
return FALSE;
sprintf (ahdrp->size, "%ld", (long) s.st_size);
sprintf (ahdrp->date, "%ld", (long) s.st_mtime);
sprintf (ahdrp->uid, "%ld", (long) s.st_uid);
sprintf (ahdrp->gid, "%ld", (long) s.st_gid);
sprintf (ahdrp->mode, "%o", (unsigned int) s.st_mode);
arch_eltdata (sub)->arch_header = (char *) ahdrp;
arch_eltdata (sub)->parsed_size = s.st_size;
}
}
offsets = (file_ptr *) bfd_alloc (abfd, count * sizeof (file_ptr));
if (offsets == NULL)
return FALSE;
if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR, SEEK_SET) != 0)
return FALSE;
makemap = bfd_has_map (abfd);
hasobjects = FALSE;
prevoff = 0;
for (archive_iterator_begin (&iterator, abfd), i = 0;
archive_iterator_next (&iterator);
i++)
{
bfd_size_type namlen;
struct xcoff_ar_hdr *ahdrp;
if (makemap && ! hasobjects)
{
if (bfd_check_format (iterator.current.member, bfd_object))
hasobjects = TRUE;
}
ahdrp = arch_xhdr (iterator.current.member);
sprintf (ahdrp->prevoff, "%ld", (long) prevoff);
sprintf (ahdrp->namlen, "%ld", (long) iterator.current.namlen);
sprintf (ahdrp->nextoff, "%ld", (long) iterator.next.offset);
/* We need spaces, not null bytes, in the header. */
for (p = (char *) ahdrp; p < (char *) ahdrp + SIZEOF_AR_HDR; p++)
if (*p == '\0')
*p = ' ';
if (!do_pad (abfd, iterator.current.leading_padding))
return FALSE;
BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
namlen = iterator.current.padded_namlen;
if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR
|| bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
|| bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
|| bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
|| !do_copy (abfd, iterator.current.member)
|| !do_pad (abfd, iterator.current.trailing_padding))
return FALSE;
offsets[i] = iterator.current.offset;
prevoff = iterator.current.offset;
}
sprintf (fhdr.lastmemoff, "%ld", (long) prevoff);
/* Write out the member table. */
nextoff = iterator.next.offset;
BFD_ASSERT (nextoff == bfd_tell (abfd));
sprintf (fhdr.memoff, "%ld", (long) nextoff);
memset (&ahdr, 0, sizeof ahdr);
sprintf (ahdr.size, "%ld", (long) (XCOFFARMAG_ELEMENT_SIZE
+ count * XCOFFARMAG_ELEMENT_SIZE
+ total_namlen));
sprintf (ahdr.prevoff, "%ld", (long) prevoff);
sprintf (ahdr.date, "%d", 0);
sprintf (ahdr.uid, "%d", 0);
sprintf (ahdr.gid, "%d", 0);
sprintf (ahdr.mode, "%d", 0);
sprintf (ahdr.namlen, "%d", 0);
size = (SIZEOF_AR_HDR
+ XCOFFARMAG_ELEMENT_SIZE
+ count * XCOFFARMAG_ELEMENT_SIZE
+ total_namlen
+ SXCOFFARFMAG);
prevoff = nextoff;
nextoff += size + (size & 1);
if (makemap && hasobjects)
sprintf (ahdr.nextoff, "%ld", (long) nextoff);
else
sprintf (ahdr.nextoff, "%d", 0);
/* We need spaces, not null bytes, in the header. */
for (p = (char *) &ahdr; p < (char *) &ahdr + SIZEOF_AR_HDR; p++)
if (*p == '\0')
*p = ' ';
if ((bfd_bwrite (&ahdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
!= SIZEOF_AR_HDR)
|| (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
!= SXCOFFARFMAG))
return FALSE;
sprintf (decbuf, "%-12ld", (long) count);
if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE, abfd)
!= XCOFFARMAG_ELEMENT_SIZE)
return FALSE;
for (i = 0; i < (size_t) count; i++)
{
sprintf (decbuf, "%-12ld", (long) offsets[i]);
if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE,
abfd) != XCOFFARMAG_ELEMENT_SIZE)
return FALSE;
}
for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
{
const char *name;
bfd_size_type namlen;
name = normalize_filename (sub);
namlen = strlen (name);
if (bfd_bwrite (name, namlen + 1, abfd) != namlen + 1)
return FALSE;
}
if (! do_pad (abfd, size & 1))
return FALSE;
/* Write out the armap, if appropriate. */
if (! makemap || ! hasobjects)
sprintf (fhdr.symoff, "%d", 0);
else
{
BFD_ASSERT (nextoff == bfd_tell (abfd));
sprintf (fhdr.symoff, "%ld", (long) nextoff);
bfd_ardata (abfd)->tdata = &fhdr;
if (! _bfd_compute_and_write_armap (abfd, 0))
return FALSE;
}
/* Write out the archive file header. */
/* We need spaces, not null bytes, in the header. */
for (p = (char *) &fhdr; p < (char *) &fhdr + SIZEOF_AR_FILE_HDR; p++)
if (*p == '\0')
*p = ' ';
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
|| (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR, abfd)
!= SIZEOF_AR_FILE_HDR))
return FALSE;
return TRUE;
}
static bfd_boolean
xcoff_write_archive_contents_big (bfd *abfd)
{
struct xcoff_ar_file_hdr_big fhdr;
bfd_size_type count;
bfd_size_type total_namlen;
file_ptr *offsets;
bfd_boolean makemap;
bfd_boolean hasobjects;
file_ptr prevoff, nextoff;
bfd *current_bfd;
size_t i;
struct xcoff_ar_hdr_big *hdr;
bfd_size_type size;
char *member_table, *mt;
bfd_vma member_table_size;
struct archive_iterator iterator;
memset (&fhdr, 0, SIZEOF_AR_FILE_HDR_BIG);
memcpy (fhdr.magic, XCOFFARMAGBIG, SXCOFFARMAG);
if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR_BIG, SEEK_SET) != 0)
return FALSE;
/* Calculate count and total_namlen. */
makemap = bfd_has_map (abfd);
hasobjects = FALSE;
for (current_bfd = abfd->archive_head, count = 0, total_namlen = 0;
current_bfd != NULL;
current_bfd = current_bfd->archive_next, count++)
{
total_namlen += strlen (normalize_filename (current_bfd)) + 1;
if (makemap
&& ! hasobjects
&& bfd_check_format (current_bfd, bfd_object))
hasobjects = TRUE;
if (current_bfd->arelt_data == NULL)
{
size = sizeof (struct areltdata);
current_bfd->arelt_data = bfd_zmalloc (size);
if (current_bfd->arelt_data == NULL)
return FALSE;
}
if (arch_xhdr_big (current_bfd) == NULL)
{
struct xcoff_ar_hdr_big *ahdrp;
struct stat s;
/* XXX This should actually be a call to stat64 (at least on
32-bit machines).
XXX This call will fail if the original object is not found. */
if (stat (bfd_get_filename (current_bfd), &s) != 0)
{
bfd_set_error (bfd_error_system_call);
return FALSE;
}
ahdrp = bfd_zalloc (current_bfd, sizeof (*ahdrp));
if (ahdrp == NULL)
return FALSE;
PRINT20 (ahdrp->size, s.st_size);
PRINT12 (ahdrp->date, s.st_mtime);
PRINT12 (ahdrp->uid, s.st_uid);
PRINT12 (ahdrp->gid, s.st_gid);
PRINT12_OCTAL (ahdrp->mode, s.st_mode);
arch_eltdata (current_bfd)->arch_header = (char *) ahdrp;
arch_eltdata (current_bfd)->parsed_size = s.st_size;
}
}
offsets = NULL;
if (count)
{
offsets = (file_ptr *) bfd_malloc (count * sizeof (file_ptr));
if (offsets == NULL)
return FALSE;
}
prevoff = 0;
for (archive_iterator_begin (&iterator, abfd), i = 0;
archive_iterator_next (&iterator);
i++)
{
bfd_size_type namlen;
struct xcoff_ar_hdr_big *ahdrp;
ahdrp = arch_xhdr_big (iterator.current.member);
PRINT20 (ahdrp->prevoff, prevoff);
PRINT4 (ahdrp->namlen, iterator.current.namlen);
PRINT20 (ahdrp->nextoff, iterator.next.offset);
if (!do_pad (abfd, iterator.current.leading_padding))
{
free (offsets);
return FALSE;
}
BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
namlen = iterator.current.padded_namlen;
if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR_BIG, abfd) != SIZEOF_AR_HDR_BIG
|| bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
|| bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
|| bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
|| !do_copy (abfd, iterator.current.member)
|| !do_pad (abfd, iterator.current.trailing_padding))
{
free (offsets);
return FALSE;
}
offsets[i] = iterator.current.offset;
prevoff = iterator.current.offset;
}
if (count)
{
PRINT20 (fhdr.firstmemoff, offsets[0]);
PRINT20 (fhdr.lastmemoff, prevoff);
}
/* Write out the member table.
Layout :
standard big archive header
0x0000 ar_size [0x14]
0x0014 ar_nxtmem [0x14]
0x0028 ar_prvmem [0x14]
0x003C ar_date [0x0C]
0x0048 ar_uid [0x0C]
0x0054 ar_gid [0x0C]
0x0060 ar_mod [0x0C]
0x006C ar_namelen[0x04]
0x0070 ar_fmag [0x02]
Member table
0x0072 count [0x14]
0x0086 offsets [0x14 * counts]
0x0086 + 0x14 * counts names [??]
?? pad to even bytes.
*/
nextoff = iterator.next.offset;
BFD_ASSERT (nextoff == bfd_tell (abfd));
member_table_size = (SIZEOF_AR_HDR_BIG
+ SXCOFFARFMAG
+ XCOFFARMAGBIG_ELEMENT_SIZE
+ count * XCOFFARMAGBIG_ELEMENT_SIZE
+ total_namlen);
member_table_size += member_table_size & 1;
member_table = bfd_zmalloc (member_table_size);
if (member_table == NULL)
{
free (offsets);
return FALSE;
}
hdr = (struct xcoff_ar_hdr_big *) member_table;
PRINT20 (hdr->size, (XCOFFARMAGBIG_ELEMENT_SIZE
+ count * XCOFFARMAGBIG_ELEMENT_SIZE
+ total_namlen + (total_namlen & 1)));
if (makemap && hasobjects)
PRINT20 (hdr->nextoff, nextoff + member_table_size);
else
PRINT20 (hdr->nextoff, 0);
PRINT20 (hdr->prevoff, prevoff);
PRINT12 (hdr->date, 0);
PRINT12 (hdr->uid, 0);
PRINT12 (hdr->gid, 0);
PRINT12 (hdr->mode, 0);
PRINT4 (hdr->namlen, 0);
mt = member_table + SIZEOF_AR_HDR_BIG;
memcpy (mt, XCOFFARFMAG, SXCOFFARFMAG);
mt += SXCOFFARFMAG;
PRINT20 (mt, count);
mt += XCOFFARMAGBIG_ELEMENT_SIZE;
for (i = 0; i < (size_t) count; i++)
{
PRINT20 (mt, offsets[i]);
mt += XCOFFARMAGBIG_ELEMENT_SIZE;
}
if (count)
{
free (offsets);
offsets = NULL;
}
for (current_bfd = abfd->archive_head;
current_bfd != NULL;
current_bfd = current_bfd->archive_next)
{
const char *name;
size_t namlen;
name = normalize_filename (current_bfd);
namlen = sprintf (mt, "%s", name);
mt += namlen + 1;
}
if (bfd_bwrite (member_table, member_table_size, abfd) != member_table_size)
return FALSE;
free (member_table);
PRINT20 (fhdr.memoff, nextoff);
prevoff = nextoff;
nextoff += member_table_size;
/* Write out the armap, if appropriate. */
if (! makemap || ! hasobjects)
PRINT20 (fhdr.symoff, 0);
else
{
BFD_ASSERT (nextoff == bfd_tell (abfd));
/* Save nextoff in fhdr.symoff so the armap routine can use it. */
PRINT20 (fhdr.symoff, nextoff);
bfd_ardata (abfd)->tdata = &fhdr;
if (! _bfd_compute_and_write_armap (abfd, 0))
return FALSE;
}
/* Write out the archive file header. */
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
|| (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR_BIG,
abfd) != SIZEOF_AR_FILE_HDR_BIG))
return FALSE;
return TRUE;
}
bfd_boolean
_bfd_xcoff_write_archive_contents (bfd *abfd)
{
if (! xcoff_big_format_p (abfd))
return xcoff_write_archive_contents_old (abfd);
else
return xcoff_write_archive_contents_big (abfd);
}
/* We can't use the usual coff_sizeof_headers routine, because AIX
always uses an a.out header. */
int
_bfd_xcoff_sizeof_headers (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
int size;
size = FILHSZ;
if (xcoff_data (abfd)->full_aouthdr)
size += AOUTSZ;
else
size += SMALL_AOUTSZ;
size += abfd->section_count * SCNHSZ;
if (info->strip != strip_all)
{
/* There can be additional sections just for dealing with overflow in
reloc and lineno counts. But the numbers of relocs and lineno aren't
known when bfd_sizeof_headers is called, so we compute them by
summing the numbers from input sections. */
struct nbr_reloc_lineno
{
unsigned int reloc_count;
unsigned int lineno_count;
};
struct nbr_reloc_lineno *n_rl;
bfd *sub;
unsigned int max_index;
asection *s;
/* Although the number of sections is known, the maximum value of
section->index isn't (because some sections may have been removed).
Don't try to renumber sections, just compute the upper bound. */
max_index = 0;
for (s = abfd->sections; s != NULL; s = s->next)
if (s->index > max_index)
max_index = s->index;
/* Allocate the per section counters. It could be possible to use a
preallocated array as the number of sections is limited on XCOFF,
but this creates a maintainance issue. */
n_rl = bfd_zmalloc ((max_index + 1) * sizeof (*n_rl));
if (n_rl == NULL)
return -1;
/* Sum. */
for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
for (s = sub->sections; s != NULL; s = s->next)
{
struct nbr_reloc_lineno *e = &n_rl[s->output_section->index];
e->reloc_count += s->reloc_count;
e->lineno_count += s->lineno_count;
}
/* Add the size of a section for each section with an overflow. */
for (s = abfd->sections; s != NULL; s = s->next)
{
struct nbr_reloc_lineno *e = &n_rl[s->index];
if (e->reloc_count >= 0xffff
|| (e->lineno_count >= 0xffff && info->strip != strip_debugger))
size += SCNHSZ;
}
free (n_rl);
}
return size;
}
/* 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
xcoff_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_impoff = bfd_get_32 (abfd, src->l_impoff);
dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
dst->l_stoff = bfd_get_32 (abfd, src->l_stoff);
}
/* Swap out the ldhdr structure. */
static void
xcoff_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_impoff, dst->l_impoff);
bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
bfd_put_32 (abfd, src->l_stoff, dst->l_stoff);
}
/* Swap in the ldsym structure. */
static void
xcoff_swap_ldsym_in (bfd *abfd, const void * s, struct internal_ldsym *dst)
{
const struct external_ldsym *src = (const struct external_ldsym *) s;
if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0) {
memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
} else {
dst->_l._l_l._l_zeroes = 0;
dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset);
}
dst->l_value = bfd_get_32 (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
xcoff_swap_ldsym_out (bfd *abfd, const struct internal_ldsym *src, void * d)
{
struct external_ldsym *dst = (struct external_ldsym *) d;
if (src->_l._l_l._l_zeroes != 0)
memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
else
{
bfd_put_32 (abfd, (bfd_vma) 0, dst->_l._l_l._l_zeroes);
bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset,
dst->_l._l_l._l_offset);
}
bfd_put_32 (abfd, src->l_value, dst->l_value);
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
xcoff_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_32 (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
xcoff_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_32 (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
xcoff_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_32 (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
xcoff_swap_ldrel_out (bfd *abfd, const struct internal_ldrel *src, void * d)
{
struct external_ldrel *dst = (struct external_ldrel *) d;
bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr);
bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
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_boolean
xcoff_reloc_type_noop (bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel ATTRIBUTE_UNUSED,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
bfd_vma val ATTRIBUTE_UNUSED,
bfd_vma addend ATTRIBUTE_UNUSED,
bfd_vma *relocation ATTRIBUTE_UNUSED,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
return TRUE;
}
bfd_boolean
xcoff_reloc_type_fail (bfd *input_bfd,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
bfd_vma val ATTRIBUTE_UNUSED,
bfd_vma addend ATTRIBUTE_UNUSED,
bfd_vma *relocation ATTRIBUTE_UNUSED,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
_bfd_error_handler
/* xgettext: c-format */
(_("%pB: unsupported relocation type %#x"),
input_bfd, (unsigned int) rel->r_type);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
bfd_boolean
xcoff_reloc_type_pos (bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel ATTRIBUTE_UNUSED,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
bfd_vma val,
bfd_vma addend,
bfd_vma *relocation,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
*relocation = val + addend;
return TRUE;
}
bfd_boolean
xcoff_reloc_type_neg (bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel ATTRIBUTE_UNUSED,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
bfd_vma val,
bfd_vma addend,
bfd_vma *relocation,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
*relocation = addend - val;
return TRUE;
}
bfd_boolean
xcoff_reloc_type_rel (bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel ATTRIBUTE_UNUSED,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto,
bfd_vma val,
bfd_vma addend,
bfd_vma *relocation,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
howto->pc_relative = TRUE;
/* A PC relative reloc includes the section address. */
addend += input_section->vma;
*relocation = val + addend;
*relocation -= (input_section->output_section->vma
+ input_section->output_offset);
return TRUE;
}
bfd_boolean
xcoff_reloc_type_toc (bfd *input_bfd,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd,
struct internal_reloc *rel,
struct internal_syment *sym,
struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
bfd_vma val,
bfd_vma addend ATTRIBUTE_UNUSED,
bfd_vma *relocation,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
struct xcoff_link_hash_entry *h;
if (0 > rel->r_symndx)
return FALSE;
h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
if (h != NULL && h->smclas != XMC_TD)
{
if (h->toc_section == NULL)
{
_bfd_error_handler
/* xgettext: c-format */
(_("%pB: TOC reloc at %#" PRIx64 " to symbol `%s' with no TOC entry"),
input_bfd, (uint64_t) rel->r_vaddr, h->root.root.string);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
val = (h->toc_section->output_section->vma
+ h->toc_section->output_offset);
}
*relocation = ((val - xcoff_data (output_bfd)->toc)
- (sym->n_value - xcoff_data (input_bfd)->toc));
return TRUE;
}
bfd_boolean
xcoff_reloc_type_ba (bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel ATTRIBUTE_UNUSED,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto,
bfd_vma val,
bfd_vma addend,
bfd_vma *relocation,
bfd_byte *contents ATTRIBUTE_UNUSED)
{
howto->src_mask &= ~3;
howto->dst_mask = howto->src_mask;
*relocation = val + addend;
return TRUE;
}
static bfd_boolean
xcoff_reloc_type_br (bfd *input_bfd,
asection *input_section,
bfd *output_bfd ATTRIBUTE_UNUSED,
struct internal_reloc *rel,
struct internal_syment *sym ATTRIBUTE_UNUSED,
struct reloc_howto_struct *howto,
bfd_vma val,
bfd_vma addend,
bfd_vma *relocation,
bfd_byte *contents)
{
struct xcoff_link_hash_entry *h;
bfd_vma section_offset;
if (0 > rel->r_symndx)
return FALSE;
h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
section_offset = rel->r_vaddr - input_section->vma;
/* If we see an R_BR or R_RBR reloc which is jumping to global
linkage code, and it is followed by an appropriate cror nop
instruction, we replace the cror with lwz r2,20(r1). This
restores the TOC after the glink code. Contrariwise, if the
call is followed by a lwz r2,20(r1), but the call is not
going to global linkage code, we can replace the load with a
cror. */
if (NULL != h
&& (bfd_link_hash_defined == h->root.type
|| bfd_link_hash_defweak == h->root.type)
&& section_offset + 8 <= input_section->size)
{
bfd_byte *pnext;
unsigned long next;
pnext = contents + section_offset + 4;
next = bfd_get_32 (input_bfd, pnext);
/* The _ptrgl function is magic. It is used by the AIX
compiler to call a function through a pointer. */
if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0)
{
if (next == 0x4def7b82 /* cror 15,15,15 */
|| next == 0x4ffffb82 /* cror 31,31,31 */
|| next == 0x60000000) /* ori r0,r0,0 */
bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r2,20(r1) */
}
else
{
if (next == 0x80410014) /* lwz r2,20(r1) */
bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
}
}
else if (NULL != h && bfd_link_hash_undefined == h->root.type)
{
/* Normally, this relocation is against a defined symbol. In the
case where this is a partial link and the output section offset
is greater than 2^25, the linker will return an invalid error
message that the relocation has been truncated. Yes it has been
truncated but no it not important. For this case, disable the
overflow checking. */
howto->complain_on_overflow = complain_overflow_dont;
}
/* The original PC-relative relocation is biased by -r_vaddr, so adding
the value below will give the absolute target address. */
*relocation = val + addend + rel->r_vaddr;
howto->src_mask &= ~3;
howto->dst_mask = howto->src_mask;
if (h != NULL
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& bfd_is_abs_section (h->root.u.def.section)
&& section_offset + 4 <= input_section->size)
{
bfd_byte *ptr;
bfd_vma insn;
/* Turn the relative branch into an absolute one by setting the
AA bit. */
ptr = contents + section_offset;
insn = bfd_get_32 (input_bfd, ptr);
insn |= 2;
bfd_put_32 (input_bfd, insn, ptr);
/* Make the howto absolute too. */
howto->pc_relative = FALSE;
howto->complain_on_overflow = complain_overflow_bitfield;
}
else
{
/* Use a PC-relative howto and subtract the instruction's address
from the target address we calculated above. */
howto->pc_relative = TRUE;
*relocation -=