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xcoff64 bfd-coff-rs6000.c.patch
- To: "binutils" <binutils at sources dot redhat dot com>
- Subject: xcoff64 bfd-coff-rs6000.c.patch
- From: "Tom Rix" <trix at redhat dot com>
- Date: Mon, 29 Jan 2001 13:39:54 -0600
coff-rs6000.c :
Many changes for 64 bit support.
Move common 32/64 code to xcofflink.c
Explictly define the rs6000coff_vec and pmac_xcoff_vec
----------------------------------------------------------------------------
-
diff -rcp sources-original/src/bfd/coff-rs6000.c
sources/src/bfd/coff-rs6000.c
*** sources-original/src/bfd/coff-rs6000.c Sat Jan 20 00:28:24 2001
--- sources/src/bfd/coff-rs6000.c Mon Jan 29 11:48:13 2001
***************
*** 1,5 ****
/* BFD back-end for IBM RS/6000 "XCOFF" files.
! Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
Free Software Foundation, Inc.
FIXME: Can someone provide a transliteration of this name into ASCII?
Using the following chars caused a compiler warning on HIUX (so I
replaced
--- 1,5 ----
/* BFD back-end for IBM RS/6000 "XCOFF" files.
! Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
Free Software Foundation, Inc.
FIXME: Can someone provide a transliteration of this name into ASCII?
Using the following chars caused a compiler warning on HIUX (so I
replaced
*************** You should have received a copy of the G
*** 26,40 ****
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "bfd.h"
#include "sysdep.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 const bfd_target * rs6000coff_core_p ();
! extern boolean rs6000coff_core_file_matches_executable_p ();
! extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd));
! extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd));
! extern boolean _bfd_xcoff_mkobject PARAMS ((bfd *));
! extern boolean _bfd_xcoff_copy_private_bfd_data PARAMS ((bfd *, bfd *));
! extern boolean _bfd_xcoff_is_local_label_name PARAMS ((bfd *, const char
*));
! extern reloc_howto_type *_bfd_xcoff_reloc_type_lookup
! PARAMS ((bfd *, bfd_reloc_code_real_type));
! extern boolean _bfd_xcoff_slurp_armap PARAMS ((bfd *));
! extern const bfd_target *_bfd_xcoff_archive_p PARAMS ((bfd *));
! extern PTR _bfd_xcoff_read_ar_hdr PARAMS ((bfd *));
! extern bfd *_bfd_xcoff_openr_next_archived_file PARAMS ((bfd *, bfd *));
! extern int _bfd_xcoff_generic_stat_arch_elt PARAMS ((bfd *, struct stat
*));
! extern boolean _bfd_xcoff_write_armap
! PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
! extern boolean _bfd_xcoff_write_archive_contents PARAMS ((bfd *));
! extern int _bfd_xcoff_sizeof_headers PARAMS ((bfd *, boolean));
! extern void _bfd_xcoff_swap_sym_in PARAMS ((bfd *, PTR, PTR));
! extern unsigned int _bfd_xcoff_swap_sym_out PARAMS ((bfd *, PTR, PTR));
! extern void _bfd_xcoff_swap_aux_in PARAMS ((bfd *, PTR, int, int, int,
int, PTR));
! extern unsigned int _bfd_xcoff_swap_aux_out PARAMS ((bfd *, PTR, int, int,
int, int, PTR));
!
! /* 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)); \
! }
!
! void _bfd_xcoff_rtype2howto PARAMS ((arelent *, struct internal_reloc *));
!
! #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
! #define COFF_LONG_FILENAMES
! #define NO_COFF_SYMBOLS
! #define RTYPE2HOWTO(cache_ptr, dst) _bfd_xcoff_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 _bfd_xcoff_reloc_type_lookup
! //#define coff_relocate_section xcoff_ppc_relocate_section
! #define CORE_FILE_P rs6000coff_core_p
! #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
!
! #include "coffcode.h"
/* The main body of code is in coffcode.h. */
*************** _bfd_xcoff_is_local_label_name (abfd, na
*** 133,139 ****
void
_bfd_xcoff_swap_sym_in (abfd, ext1, in1)
! bfd *abfd;
PTR ext1;
PTR in1;
{
--- 189,195 ----
void
_bfd_xcoff_swap_sym_in (abfd, ext1, in1)
! bfd *abfd;
PTR ext1;
PTR in1;
{
*************** _bfd_xcoff_swap_aux_in (abfd, ext1, type
*** 221,227 ****
}
else
{
! memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
}
}
goto end;
--- 277,284 ----
}
else
{
! memcpy (in->x_file.x_fname, ext->x_file.x_fname,
! bfd_coff_filnmlen(abfd));
}
}
goto end;
*************** _bfd_xcoff_swap_aux_out (abfd, inp, type
*** 331,337 ****
}
else
{
! memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
}
goto end;
--- 388,395 ----
}
else
{
! memcpy (ext->x_file.x_fname, in->x_file.x_fname,
! bfd_coff_filnmlen(abfd));
}
goto end;
*************** end:
*** 410,418 ****
different algorithms for putting in the reloc. Many of these
relocs need special_function entries, which I have not written. */
- /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
- from smaller values. Start with zero, widen, *then* decrement. */
- #define MINUS_ONE (((bfd_vma)0) - 1)
reloc_howto_type xcoff_howto_table[] =
{
--- 468,473 ----
*************** _bfd_xcoff_rtype2howto (relent, internal
*** 850,855 ****
--- 905,942 ----
#endif
}
+ static
+ reloc_howto_type *
+ _bfd_xcoff_rtype_to_canonical_reloc_howto (abfd, internal)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ struct internal_reloc *internal;
+ {
+ reloc_howto_type *return_value;
+
+ return_value = xcoff_howto_table + internal->r_type;
+
+ /* Check for relocs we don't know of. */
+ if (internal->r_type
+ >= sizeof (xcoff_howto_table) / sizeof (xcoff_howto_table[0]))
+ abort ();
+ if (internal->r_type != return_value->type)
+ abort ();
+
+ /* 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 (return_value->dst_mask != 0
+ && (return_value->bitsize
+ != ((unsigned int) internal->r_size & 0x3f) + 1))
+ abort ();
+
+ return return_value;
+ }
+
+
+
reloc_howto_type *
_bfd_xcoff_reloc_type_lookup (abfd, code)
bfd *abfd ATTRIBUTE_UNUSED;
*************** _bfd_xcoff_reloc_type_lookup (abfd, code
*** 919,1086 ****
/* XCOFF archives use this as a magic string. Note that both strings
have the same length. */
- #define XCOFFARMAG "<aiaff>\012"
- #define XCOFFARMAGBIG "<bigaf>\012"
- #define SXCOFFARMAG 8
-
- /* This terminates an XCOFF archive member name. */
-
- #define XCOFFARFMAG "`\012"
- #define SXCOFFARFMAG 2
-
- /* XCOFF archives start with this (printable) structure. */
-
- struct xcoff_ar_file_hdr
- {
- /* Magic string. */
- char magic[SXCOFFARMAG];
-
- /* Offset of the member table (decimal ASCII string). */
- char memoff[12];
-
- /* Offset of the global symbol table (decimal ASCII string). */
- char symoff[12];
-
- /* Offset of the first member in the archive (decimal ASCII string). */
- char firstmemoff[12];
-
- /* Offset of the last member in the archive (decimal ASCII string). */
- char lastmemoff[12];
-
- /* Offset of the first member on the free list (decimal ASCII
- string). */
- char freeoff[12];
- };
-
- #define SIZEOF_AR_FILE_HDR (5 * 12 + SXCOFFARMAG)
-
- /* This is the equivalent data structure for the big archive format. */
-
- struct xcoff_ar_file_hdr_big
- {
- /* Magic string. */
- char magic[SXCOFFARMAG];
-
- /* Offset of the member table (decimal ASCII string). */
- char memoff[20];
-
- /* Offset of the global symbol table for 32-bit objects (decimal ASCII
- string). */
- char symoff[20];
-
- /* Offset of the global symbol table for 64-bit objects (decimal ASCII
- string). */
- char symoff64[20];
-
- /* Offset of the first member in the archive (decimal ASCII string). */
- char firstmemoff[20];
-
- /* Offset of the last member in the archive (decimal ASCII string). */
- char lastmemoff[20];
-
- /* Offset of the first member on the free list (decimal ASCII
- string). */
- char freeoff[20];
- };
-
- #define SIZEOF_AR_FILE_HDR_BIG (6 * 20 + SXCOFFARMAG)
-
- /* Each XCOFF archive member starts with this (printable) structure. */
-
- struct xcoff_ar_hdr
- {
- /* File size not including the header (decimal ASCII string). */
- char size[12];
-
- /* File offset of next archive member (decimal ASCII string). */
- char nextoff[12];
-
- /* File offset of previous archive member (decimal ASCII string). */
- char prevoff[12];
-
- /* File mtime (decimal ASCII string). */
- char date[12];
-
- /* File UID (decimal ASCII string). */
- char uid[12];
-
- /* File GID (decimal ASCII string). */
- char gid[12];
-
- /* File mode (octal ASCII string). */
- char mode[12];
-
- /* Length of file name (decimal ASCII string). */
- char namlen[4];
-
- /* This structure is followed by the file name. The length of the
- name is given in the namlen field. If the length of the name is
- odd, the name is followed by a null byte. The name and optional
- null byte are followed by XCOFFARFMAG, which is not included in
- namlen. The contents of the archive member follow; the number of
- bytes is given in the size field. */
- };
-
- #define SIZEOF_AR_HDR (7 * 12 + 4)
-
- /* The equivalent for the big archive format. */
-
- struct xcoff_ar_hdr_big
- {
- /* File size not including the header (decimal ASCII string). */
- char size[20];
-
- /* File offset of next archive member (decimal ASCII string). */
- char nextoff[20];
-
- /* File offset of previous archive member (decimal ASCII string). */
- char prevoff[20];
-
- /* File mtime (decimal ASCII string). */
- char date[12];
-
- /* File UID (decimal ASCII string). */
- char uid[12];
-
- /* File GID (decimal ASCII string). */
- char gid[12];
-
- /* File mode (octal ASCII string). */
- char mode[12];
-
- /* Length of file name (decimal ASCII string). */
- char namlen[4];
-
- /* This structure is followed by the file name. The length of the
- name is given in the namlen field. If the length of the name is
- odd, the name is followed by a null byte. The name and optional
- null byte are followed by XCOFFARFMAG, which is not included in
- namlen. The contents of the archive member follow; the number of
- bytes is given in the size field. */
- };
-
- #define SIZEOF_AR_HDR_BIG (3 * 20 + 4 * 12 + 4)
-
- /* We often have to distinguish between the old and big file format.
- Make it a bit cleaner. We can use `xcoff_ardata' here because the
- `hdr' member has the same size and position in both formats. */
- #define xcoff_big_format_p(abfd) \
- (xcoff_ardata (abfd)->magic[1] == 'b')
-
- /* We store a copy of the xcoff_ar_file_hdr in the tdata field of the
- artdata structure. Similar for the big archive. */
- #define xcoff_ardata(abfd) \
- ((struct xcoff_ar_file_hdr *) bfd_ardata (abfd)->tdata)
- #define xcoff_ardata_big(abfd) \
- ((struct xcoff_ar_file_hdr_big *) bfd_ardata (abfd)->tdata)
-
- /* We store a copy of the xcoff_ar_hdr in the arelt_data field of an
- archive element. Similar for the big archive. */
- #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
- #define arch_xhdr(bfd) \
- ((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header)
- #define arch_xhdr_big(bfd) \
- ((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header)
/* Read in the armap of an XCOFF archive. */
--- 1006,1011 ----
*************** xcoff_write_armap_big (abfd, elength, ma
*** 1783,1789 ****
}
/* A quick sanity check... */
BFD_ASSERT (orl_count_64 + orl_count_32 == orl_count);
! BFD_ASSERT (stridx_64 + stridx_32 == stridx);
/* Now write out each map. */
if (! xcoff_write_one_armap_big (abfd, map, orl_count, orl_count_32,
--- 1708,1714 ----
}
/* A quick sanity check... */
BFD_ASSERT (orl_count_64 + orl_count_32 == orl_count);
! BFD_ASSERT (stridx_64 + stridx_32 == (unsigned int) stridx);
/* Now write out each map. */
if (! xcoff_write_one_armap_big (abfd, map, orl_count, orl_count_32,
*************** _bfd_xcoff_sizeof_headers (abfd, reloc)
*** 2358,2360 ****
--- 2283,3446 ----
size += abfd->section_count * SCNHSZ;
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 (abfd, src, dst)
+ bfd *abfd;
+ const struct external_ldhdr *src;
+ struct internal_ldhdr *dst;
+ {
+ 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 (abfd, src, dst)
+ bfd *abfd;
+ const struct internal_ldhdr *src;
+ struct external_ldhdr *dst;
+ {
+ bfd_put_32 (abfd, 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 (abfd, src, dst)
+ bfd *abfd;
+ const struct external_ldsym *src;
+ struct internal_ldsym *dst;
+ {
+ 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 (abfd, src, dst)
+ bfd *abfd;
+ const struct internal_ldsym *src;
+ struct external_ldsym *dst;
+ {
+ if (src->_l._l_l._l_zeroes != 0)
+ memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
+ else
+ {
+ bfd_put_32 (abfd, 0, dst->_l._l_l._l_zeroes);
+ bfd_put_32 (abfd, 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, 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);
+ }
+
+ /* Swap in the ldrel structure. */
+
+ static void
+ xcoff_swap_ldrel_in (abfd, src, dst)
+ bfd *abfd;
+ const struct external_ldrel *src;
+ struct internal_ldrel *dst;
+ {
+ 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 (abfd, src, dst)
+ bfd *abfd;
+ const struct internal_ldrel *src;
+ struct external_ldrel *dst;
+ {
+ bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr);
+ bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
+ bfd_put_16 (abfd, src->l_rtype, dst->l_rtype);
+ bfd_put_16 (abfd, src->l_rsecnm, dst->l_rsecnm);
+ }
+
+
+
+ /* This is the relocation function for the RS/6000/POWER/PowerPC.
+ This is currently the only processor which uses XCOFF; I hope that
+ will never change. */
+
+ boolean
+ xcoff_ppc_relocate_section (output_bfd, info, input_bfd,
+ input_section, contents, relocs, syms,
+ sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ struct internal_reloc *relocs;
+ struct internal_syment *syms;
+ asection **sections;
+ {
+ struct internal_reloc *rel;
+ struct internal_reloc *relend;
+
+ rel = relocs;
+ relend = rel + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ long symndx;
+ struct xcoff_link_hash_entry *h;
+ struct internal_syment *sym;
+ bfd_vma addend;
+ bfd_vma val;
+ struct reloc_howto_struct howto;
+ bfd_reloc_status_type rstat;
+
+ /* Relocation type R_REF is a special relocation type which is
+ merely used to prevent garbage collection from occurring for
+ the csect including the symbol which it references. */
+ if (rel->r_type == R_REF)
+ continue;
+
+ symndx = rel->r_symndx;
+
+ if (symndx == -1)
+ {
+ h = NULL;
+ sym = NULL;
+ addend = 0;
+ }
+ else
+
+ h = obj_xcoff_sym_hashes (input_bfd)[symndx];
+ sym = syms + symndx;
+ addend = - sym->n_value;
+ }
+
+ /* We build the howto information on the fly. */
+
+ howto.type = rel->r_type;
+ howto.rightshift = 0;
+ howto.size = 2;
+ howto.bitsize = (rel->r_size & 0x1f) + 1;
+ howto.pc_relative = false;
+ howto.bitpos = 0;
+ if ((rel->r_size & 0x80) != 0)
+ howto.complain_on_overflow = complain_overflow_signed;
+ else
+ howto.complain_on_overflow = complain_overflow_bitfield;
+ howto.special_function = NULL;
+ howto.name = "internal";
+ howto.partial_inplace = true;
+ if (howto.bitsize == 32)
+ howto.src_mask = howto.dst_mask = 0xffffffff;
+ else
+ {
+ howto.src_mask = howto.dst_mask = (1 << howto.bitsize) - 1;
+ if (howto.bitsize == 16)
+ howto.size = 1;
+ }
+ howto.pcrel_offset = false;
+
+ val = 0;
+
+ if (h == NULL)
+ {
+ asection *sec;
+
+ if (symndx == -1)
+ {
+ sec = bfd_abs_section_ptr;
+ val = 0;
+ }
+ else
+ {
+ sec = sections[symndx];
+ /* Hack to make sure we use the right TOC anchor value
+ if this reloc is against the TOC anchor. */
+ if (sec->name[3] == '0'
+ && strcmp (sec->name, ".tc0") == 0)
+ val = xcoff_data (output_bfd)->toc;
+ else
+ val = (sec->output_section->vma
+ + sec->output_offset
+ + sym->n_value
+ - sec->vma);
+ }
+ }
+ else
+ {
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ asection *sec;
+
+ sec = h->root.u.def.section;
+ val = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ }
+ else if (h->root.type == bfd_link_hash_common)
+ {
+ asection *sec;
+
+ sec = h->root.u.c.p->section;
+ val = (sec->output_section->vma
+ + sec->output_offset);
+ }
+ else if ((h->flags & XCOFF_DEF_DYNAMIC) != 0
+ || (h->flags & XCOFF_IMPORT) != 0)
+ {
+ /* Every symbol in a shared object is defined somewhere. */
+ val = 0;
+ }
+ else if (! info->relocateable)
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd, input_section,
+ rel->r_vaddr - input_section->vma, true)))
+ return false;
+
+ /* Don't try to process the reloc. It can't help, and
+ it may generate another error. */
+ continue;
+ }
+ }
+
+ /* I took the relocation type definitions from two documents:
+ the PowerPC AIX Version 4 Application Binary Interface, First
+ Edition (April 1992), and the PowerOpen ABI, Big-Endian
+ 32-Bit Hardware Implementation (June 30, 1994). Differences
+ between the documents are noted below. */
+
+ switch (rel->r_type)
+ {
+ case R_RTB:
+ case R_RRTBI:
+ case R_RRTBA:
+ /* These relocs are defined by the PowerPC ABI to be
+ relative branches which use half of the difference
+ between the symbol and the program counter. I can't
+ quite figure out when this is useful. These relocs are
+ not defined by the PowerOpen ABI. */
+ default:
+ (*_bfd_error_handler)
+ (_("%s: unsupported relocation type 0x%02x"),
+ bfd_get_filename (input_bfd), (unsigned int) rel->r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ case R_POS:
+ /* Simple positive relocation. */
+ break;
+ case R_NEG:
+ /* Simple negative relocation. */
+ val = - val;
+ break;
+ case R_REL:
+ /* Simple PC relative relocation. */
+ howto.pc_relative = true;
+ break;
+ case R_TOC:
+ /* TOC relative relocation. The value in the instruction in
+ the input file is the offset from the input file TOC to
+ the desired location. We want the offset from the final
+ TOC to the desired location. We have:
+ isym = iTOC + in
+ iinsn = in + o
+ osym = oTOC + on
+ oinsn = on + o
+ so we must change insn by on - in.
+ */
+ case R_GL:
+ /* Global linkage relocation. The value of this relocation
+ is the address of the entry in the TOC section. */
+ case R_TCL:
+ /* Local object TOC address. I can't figure out the
+ difference between this and case R_GL. */
+ case R_TRL:
+ /* TOC relative relocation. A TOC relative load instruction
+ which may be changed to a load address instruction.
+ FIXME: We don't currently implement this optimization. */
+ case R_TRLA:
+ /* TOC relative relocation. This is a TOC relative load
+ address instruction which may be changed to a load
+ instruction. FIXME: I don't know if this is the correct
+ implementation. */
+ if (h != NULL && h->smclas != XMC_TD)
+ {
+ if (h->toc_section == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"),
+ bfd_get_filename (input_bfd), 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);
+ }
+
+ val = ((val - xcoff_data (output_bfd)->toc)
+ - (sym->n_value - xcoff_data (input_bfd)->toc));
+ addend = 0;
+ break;
+ case R_BA:
+ /* Absolute branch. We don't want to mess with the lower
+ two bits of the instruction. */
+ case R_CAI:
+ /* The PowerPC ABI defines this as an absolute call which
+ may be modified to become a relative call. The PowerOpen
+ ABI does not define this relocation type. */
+ case R_RBA:
+ /* Absolute branch which may be modified to become a
+ relative branch. */
+ case R_RBAC:
+ /* The PowerPC ABI defines this as an absolute branch to a
+ fixed address which may be modified to an absolute branch
+ to a symbol. The PowerOpen ABI does not define this
+ relocation type. */
+ case R_RBRC:
+ /* The PowerPC ABI defines this as an absolute branch to a
+ fixed address which may be modified to a relative branch.
+ The PowerOpen ABI does not define this relocation type. */
+ howto.src_mask &= ~3;
+ howto.dst_mask = howto.src_mask;
+ break;
+ case R_BR:
+ /* Relative branch. We don't want to mess with the lower
+ two bits of the instruction. */
+ case R_CREL:
+ /* The PowerPC ABI defines this as a relative call which may
+ be modified to become an absolute call. The PowerOpen
+ ABI does not define this relocation type. */
+ case R_RBR:
+ /* A relative branch which may be modified to become an
+ absolute branch. FIXME: We don't implement this,
+ although we should for symbols of storage mapping class
+ XMC_XO. */
+ howto.pc_relative = true;
+ howto.src_mask &= ~3;
+ howto.dst_mask = howto.src_mask;
+ break;
+ case R_RL:
+ /* The PowerPC AIX ABI describes this as a load which may be
+ changed to a load address. The PowerOpen ABI says this
+ is the same as case R_POS. */
+ break;
+ case R_RLA:
+ /* The PowerPC AIX ABI describes this as a load address
+ which may be changed to a load. The PowerOpen ABI says
+ this is the same as R_POS. */
+ break;
+ }
+
+ /* 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 ((rel->r_type == R_BR || rel->r_type == R_RBR)
+ && h != NULL
+ && h->root.type == bfd_link_hash_defined
+ && (rel->r_vaddr - input_section->vma + 8
+ <= input_section->_cooked_size))
+ {
+ bfd_byte *pnext;
+ unsigned long next;
+
+ pnext = contents + (rel->r_vaddr - input_section->vma) + 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 r1,20(r1) */
+ }
+ else
+ {
+ if (next == 0x80410014) /* lwz r1,20(r1) */
+ bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
+ }
+ }
+
+ /* A PC relative reloc includes the section address. */
+ if (howto.pc_relative)
+ addend += input_section->vma;
+
+ rstat = _bfd_final_link_relocate (&howto, input_bfd, input_section,
+ contents,
+ rel->r_vaddr - input_section->vma,
+ val, addend);
+
+ switch (rstat)
+ {
+ default:
+ abort ();
+ case bfd_reloc_ok:
+ break;
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+ char buf[SYMNMLEN + 1];
+ char howto_name[10];
+
+ if (symndx == -1)
+ name = "*ABS*";
+ else if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+
+ name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
+
+ if (name == NULL)
+ return false;
+ }
+ sprintf (howto_name, "0x%02x", rel->r_type);
+
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, name, howto_name, (bfd_vma) 0, input_bfd,
+ input_section, rel->r_vaddr - input_section->vma)))
+ return false;
+ }
+ }
+ }
+
+ return true;
+ }
+
+ static boolean
+ _bfd_xcoff_put_ldsymbol_name (abfd, ldinfo, ldsym, name)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ struct xcoff_loader_info *ldinfo;
+ struct internal_ldsym *ldsym;
+ const char *name;
+ {
+ size_t len;
+ len = strlen (name);
+
+ if (len <= SYMNMLEN)
+ strncpy (ldsym->_l._l_name, name, SYMNMLEN);
+ else
+ {
+ if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
+ {
+ size_t newalc;
+ bfd_byte *newstrings;
+
+ newalc = ldinfo->string_alc * 2;
+ if (newalc == 0)
+ newalc = 32;
+ while (ldinfo->string_size + len + 3 > newalc)
+ newalc *= 2;
+
+ newstrings = ((bfd_byte *)
+ bfd_realloc ((PTR) ldinfo->strings, newalc));
+ if (newstrings == NULL)
+ {
+ ldinfo->failed = true;
+ return false;
+ }
+ ldinfo->string_alc = newalc;
+ ldinfo->strings = newstrings;
+ }
+
+ bfd_put_16 (ldinfo->output_bfd, 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;
+ }
+
+ static boolean
+ _bfd_xcoff_put_symbol_name (abfd, strtab, sym, name)
+ bfd *abfd;
+ struct bfd_strtab_hash *strtab;
+ struct internal_syment *sym;
+ const char *name;
+ {
+
+ if (strlen (name) <= SYMNMLEN) {
+ strncpy (sym->_n._n_name, name, SYMNMLEN);
+ } else {
+ boolean hash;
+ bfd_size_type indx;
+
+ hash = true;
+ if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
+ hash = false;
+ 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 asection *
+ xcoff_create_csect_from_smclas (abfd, aux, symbol_name)
+ bfd *abfd;
+ union internal_auxent *aux;
+ char *symbol_name;
+ {
+
+ asection *return_value = NULL;
+
+ /*
+ * .sv64 = x_smclas == 17
+ * This is an invalid csect for 32 bit apps.
+ */
+ static const char *names[19] = {
+ ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo",
+ ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0",
+ ".td", NULL, ".sv3264"
+ };
+
+ if ((19 >= aux->x_csect.x_smclas) &&
+ (NULL != names[aux->x_csect.x_smclas])) {
+
+ return_value = bfd_make_section_anyway
+ (abfd, names[aux->x_csect.x_smclas]);
+
+ } else {
+ (*_bfd_error_handler)
+ (_("%s: symbol `%s' has unrecognized smclas %d"),
+ bfd_get_filename (abfd), symbol_name, aux->x_csect.x_smclas);
+ bfd_set_error (bfd_error_bad_value);
+ }
+
+ return return_value;
+ }
+
+ static boolean
+ xcoff_is_lineno_count_overflow (abfd, value)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_vma value;
+ {
+ if (0xffff <= value) {
+ return true;
+ }
+ return false;
+ }
+
+ boolean
+ xcoff_is_reloc_count_overflow (abfd, value)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ bfd_vma value;
+ {
+ if (0xffff <= value) {
+ return true;
+ }
+ return false;
+ }
+
+ bfd_vma
+ xcoff_loader_symbol_offset (abfd, ldhdr)
+ bfd *abfd;
+ struct internal_ldhdr *ldhdr ATTRIBUTE_UNUSED;
+ {
+ return bfd_xcoff_ldhdrsz(abfd);
+ }
+
+ bfd_vma
+ xcoff_loader_reloc_offset (abfd, ldhdr)
+ bfd *abfd;
+ struct internal_ldhdr *ldhdr;
+ {
+ return bfd_xcoff_ldhdrsz(abfd) + (ldhdr->l_nsyms *
bfd_xcoff_ldsymsz(abfd));
+ }
+
+
+ static reloc_howto_type xcoff_dynamic_reloc =
+ HOWTO (0, /* 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 */
+
+ /*
+ * glink
+ *
+ * The first word of global linkage code must be modified by filling in
+ * the correct TOC offset.
+ */
+ static unsigned long xcoff_glink_code[9] =
+ {
+ 0x81820000, /* lwz r12,0(r2) */
+ 0x90410014, /* stw r2,20(r1) */
+ 0x800c0000, /* lwz r0,0(r12) */
+ 0x804c0004, /* lwz r2,4(r12) */
+ 0x7c0903a6, /* mtctr r0 */
+ 0x4e800420, /* bctr */
+ 0x00000000, /* start of traceback table */
+ 0x000c8000, /* traceback table */
+ 0x00000000, /* traceback table */
+ };
+
+
+ static const struct xcoff_backend_data_rec bfd_xcoff_backend_data =
+ {
+ { /* COFF backend, defined in libcoff.h */
+ _bfd_xcoff_swap_aux_in, /* _bfd_coff_swap_aux_in */
+ _bfd_xcoff_swap_sym_in, /* _bfd_coff_swap_sym_in */
+ coff_swap_lineno_in, /* _bfd_coff_swap_lineno_in */
+ _bfd_xcoff_swap_aux_out, /* _bfd_swap_aux_out */
+ _bfd_xcoff_swap_sym_out, /* _bfd_swap_sym_out */
+ coff_swap_lineno_out, /* _bfd_swap_lineno_out */
+ coff_swap_reloc_out, /* _bfd_swap_reloc_out */
+ coff_swap_filehdr_out, /* _bfd_swap_filehdr_out */
+ coff_swap_aouthdr_out, /* _bfd_swap_aouthdr_out */
+ coff_swap_scnhdr_out, /* _bfd_swap_scnhdr_out */
+ FILHSZ, /* _bfd_filhsz */
+ AOUTSZ, /* _bfd_aoutsz */
+ SCNHSZ, /* _bfd_scnhsz */
+ SYMESZ, /* _bfd_symesz */
+ AUXESZ, /* _bfd_auxesz */
+ RELSZ, /* _bfd_relsz */
+ LINESZ, /* _bfd_linesz */
+ FILNMLEN, /* _bfd_filenmlen */
+ true, /* _bfd_coff_long_filenames */
+ false, /* _bfd_coff_long_section_names */
+ (3), /*
_bfd_coff_default_section_alignment_power */
+ false, /*
_bfd_coff_force_symnames_in_strings */
+ 2, /*
_bfd_coff_debug_string_prefix_length */
+ coff_swap_filehdr_in, /* _bfd_coff_swap_filehdr_in */
+ coff_swap_aouthdr_in, /* _bfd_swap_aouthdr_in */
+ coff_swap_scnhdr_in, /* _bfd_swap_scnhdr_in */
+ coff_swap_reloc_in, /* _bfd_reloc_in */
+ coff_bad_format_hook, /* _bfd_bad_format_hook */
+ coff_set_arch_mach_hook, /* _bfd_set_arch_mach_hook */
+ coff_mkobject_hook, /* _bfd_mkobject_hook */
+ styp_to_sec_flags, /* _bfd_syp_to_sec_flags */
+ coff_set_alignment_hook, /* _bfd_set_alignment_hook */
+ coff_slurp_symbol_table, /* _bfd_coff_slurp_symbol_table */
+ symname_in_debug_hook, /* _coff_symname_in_debug_hook */
+ coff_pointerize_aux_hook, /* _bfd_coff_pointerize_aux_hook */
+ coff_print_aux, /* bfd_coff_print_aux */
+ dummy_reloc16_extra_cases, /* _bfd_coff_reloc16_extra_cases */
+ dummy_reloc16_estimate, /* _bfd_coff_reloc16_estimate */
+ NULL, /* bfd_coff_sym_is_global */
+ /*
_bfd_coff_compute_section_file_positions */
+ coff_compute_section_file_positions,
+ NULL , /* _bfd_coff_start_final_link */
+ xcoff_ppc_relocate_section, /* _bfd_coff_relocate_section */
+ coff_rtype_to_howto, /* _bfd_coff_rtype_to_howto */
+ NULL , /* _bfd_coff_addust_symndx */
+ _bfd_generic_link_add_one_symbol, /* _bfd_coff_add_one_symbol */
+ coff_link_output_has_begun, /* _bfd_coff_link_output_has_begun
*/
+ coff_final_link_postscript /* _bfd_coff_final_link_postscript
*/
+ },
+
+ 0x01DF, /* magic number */
+ 0x0000, /* _reservered_1 */
+ bfd_arch_rs6000, /* architecture */
+ bfd_mach_rs6k, /* machine */
+
+
+ /* function pointers to xcoff specific swap routines */
+ xcoff_swap_ldhdr_in, /* _xcoff_swap_ldhdr_in */
+ xcoff_swap_ldhdr_out, /* _xcoff_swap_ldhdr_out */
+ xcoff_swap_ldsym_in, /* _xcoff_swap_ldsym_in */
+ xcoff_swap_ldsym_out, /* _xcoff_swap_ldsym_out */
+ xcoff_swap_ldrel_in, /* _xcoff_swap_ldrel_in */
+ xcoff_swap_ldrel_out, /* _xcoff_swap_ldrel_out */
+
+ /* sizes */
+ LDHDRSZ, /* _xcoff_ldhdrsz */
+ LDSYMSZ, /* _xcoff_ldsymsz */
+ LDRELSZ, /* _xcoff_ldrelsz */
+ 12, /* _xcoff_function_descriptor_size
*/
+ SMALL_AOUTSZ, /* _xcoff_small_aout_header_size */
+
+ /* versions */
+ 1, /* _xcoff_ldhdr_version */
+
+ /* xcoff vs xcoff64 putting symbol names */
+ _bfd_xcoff_put_symbol_name, /* _xcoff_put_symbol_name */
+ _bfd_xcoff_put_ldsymbol_name, /* _xcoff_put_ldsymbol_name */
+
+ &xcoff_dynamic_reloc, /* dynamic reloc howto */
+ _bfd_xcoff_rtype_to_canonical_reloc_howto,
/*_xcoff_rtype_to_canonical_reloc */
+
+ xcoff_create_csect_from_smclas, /* _xcoff_create_csect_from_smclas
*/
+
+ /* lineno and reloc count overflow */
+ xcoff_is_lineno_count_overflow,
+ xcoff_is_reloc_count_overflow,
+
+ xcoff_loader_symbol_offset,
+ xcoff_loader_reloc_offset,
+
+ /* glink */
+ &xcoff_glink_code[0],
+ (36), /* _xcoff_glink_size */
+
+ };
+
+ /* The transfer vector that leads the outside world to all of the above.
*/
+ const bfd_target rs6000coff_vec =
+ {
+ "aixcoff-rs6000",
+ bfd_target_xcoff_flavour,
+ BFD_ENDIAN_BIG, /* data byte order is big */
+ BFD_ENDIAN_BIG, /* header byte order is big */
+
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG | DYNAMIC |
+ HAS_SYMS | HAS_LOCALS | WP_TEXT),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags
*/
+ 0, /* leading char */
+ '/', /* ar_pad_char */
+ 15, /* ar_max_namelen??? FIXMEmgo */
+
+ /* data */
+ bfd_getb64, /* bfd_getx64 */
+ bfd_getb_signed_64, /* bfd_getx_signed_64 */
+ bfd_putb64, /* bfd_putx64 */
+ bfd_getb32, /* bfd_getx32 */
+ bfd_getb_signed_32, /* bfd_getx_signed_32 */
+ bfd_putb32, /* bfd_putx32 */
+ bfd_getb16, /* bfd_getx16 */
+ bfd_getb_signed_16, /* bfd_getx_signed_16 */
+ bfd_putb16, /* bfd_putx16 */
+
+ /* hdrs */
+ bfd_getb64, /* bfd_h_getx64 */
+ bfd_getb_signed_64, /* bfd_h_getx_signed_64 */
+ bfd_putb64, /* bfd_h_putx64 */
+ bfd_getb32, /* bfd_h_getx32 */
+ bfd_getb_signed_32, /* bfd_h_getx_signed_32 */
+ bfd_putb32, /* bfd_h_putx32 */
+ bfd_getb16, /* bfd_h_getx16 */
+ bfd_getb_signed_16, /* bfd_h_getx_signed_16 */
+ bfd_putb16, /* bfd_h_putx16 */
+
+ { /* bfd_check_format */
+ _bfd_dummy_target,
+ coff_object_p,
+ _bfd_xcoff_archive_p,
+ CORE_FILE_P
+ },
+
+ { /* bfd_set_format */
+ bfd_false,
+ coff_mkobject,
+ _bfd_generic_mkarchive,
+ bfd_false
+ },
+
+ {/* bfd_write_contents */
+ bfd_false,
+ coff_write_object_contents,
+ _bfd_xcoff_write_archive_contents,
+ bfd_false
+ },
+
+ /* Generic */
+ bfd_true, /* _close_and_cleanup */
+ bfd_true, /* _bfd_free_cached_info */
+ coff_new_section_hook, /* _new_section_hook */
+ _bfd_generic_get_section_contents, /* _bfd_get_section_contents */
+ /*
_bfd_get_section_contents_in_window */
+ _bfd_generic_get_section_contents_in_window,
+
+ /* Copy */
+ _bfd_xcoff_copy_private_bfd_data, /* _bfd_copy_private_bfd */
+ /* _bfd_merge_private_bfd_data */
+ ((boolean (*) (bfd *, bfd *)) bfd_true),
+ /* _bfd_copy_pivate_section_data */
+ ((boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
+ /* _bfd_copy_private_symbol_data */
+ ((boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
+ ((boolean (*) (bfd *, flagword)) bfd_true), /* _bfd_set_private_flags */
+ ((boolean (*) (bfd *, void * )) bfd_true), /*
_bfd_print_private_bfd_data */
+
+ /* Core */
+ rs6000coff_core_file_failing_command, /* _core_file_failing_command
*/
+ rs6000coff_core_file_failing_signal, /* _core_file_failing_signal */
+ /*
_core_file_matches_executable_p */
+ rs6000coff_core_file_matches_executable_p,
+
+ /* Archive */
+ _bfd_xcoff_slurp_armap, /* _slurp_armap */
+ /* XCOFF archives do not have
+ anything which corresponds to
+ an extended name table. */
+ bfd_false, /* _slurp_extended_name_table
*/
+ /*
_construct_extended_name_table */
+ ((boolean (*) (bfd *, char **, bfd_size_type *, const char **))
bfd_false),
+ bfd_dont_truncate_arname, /* _truncate_arname */
+ _bfd_xcoff_write_armap, /* _write_armap */
+ _bfd_xcoff_read_ar_hdr, /* _read_ar_hdr */
+ _bfd_xcoff_openr_next_archived_file, /* _openr_next_archived_file */
+ _bfd_generic_get_elt_at_index, /* _get_elt_at_index */
+ _bfd_xcoff_generic_stat_arch_elt, /* _generic_dtat_arch_elt */
+ /* XCOFF archives do not have
+ a timestamp. */
+ bfd_true, /* _update_armap_timestamp */
+
+ /* Symbols */
+ coff_get_symtab_upper_bound, /* _get_symtab_upper_bound */
+ coff_get_symtab, /* _get_symtab */
+ coff_make_empty_symbol, /* _make_empty_symbol */
+ coff_print_symbol, /* _print_symbol */
+ coff_get_symbol_info, /* _get_symbol_info */
+ _bfd_xcoff_is_local_label_name, /* _bfd_is_local_label_name */
+ coff_get_lineno, /* _get_lineno */
+ coff_find_nearest_line, /* _find_nearest_line */
+ coff_bfd_make_debug_symbol, /* _bfd_make_debug_symbol */
+ _bfd_generic_read_minisymbols, /* _read_minisymbols */
+ _bfd_generic_minisymbol_to_symbol, /* _minsymbol_to_symbol */
+
+ /* Reloc */
+ coff_get_reloc_upper_bound, /* _get_reloc_upper_bound */
+ coff_canonicalize_reloc, /* _cononicalize_reloc */
+ _bfd_xcoff_reloc_type_lookup, /* _bfd_reloc_type_lookup */
+
+ /* Write */
+ coff_set_arch_mach, /* _set_arch_mach */
+ coff_set_section_contents, /* _set_section_contents */
+
+ /* Link */
+ _bfd_xcoff_sizeof_headers, /* _sizeof_headers */
+ /*
_bfd_get_relocated_section_contents */
+ bfd_generic_get_relocated_section_contents,
+ bfd_generic_relax_section, /* _bfd_relax_section */
+ _bfd_xcoff_bfd_link_hash_table_create, /* _bfd_link_hash_table_create
*/
+ _bfd_xcoff_bfd_link_add_symbols, /* _bfd_link_add_symbols */
+ _bfd_xcoff_bfd_final_link, /* _bfd_filnal_link */
+ _bfd_generic_link_split_section, /* _bfd_link_split_section */
+ bfd_generic_gc_sections, /* _bfd_gc_sections */
+
+ /* Dynamic */
+ /*
_get_dynamic_symtab_upper_bound */
+ _bfd_xcoff_get_dynamic_symtab_upper_bound,
+ _bfd_xcoff_canonicalize_dynamic_symtab, /* _cononicalize_dynamic_symtab
*/
+ _bfd_xcoff_get_dynamic_reloc_upper_bound,/*
_get_dynamic_reloc_upper_bound */
+ _bfd_xcoff_canonicalize_dynamic_reloc, /* _cononicalize_dynamic_reloc
*/
+
+ /* Opposite endian version, none exists */
+ NULL,
+
+ /* back end data */
+ (void *) &bfd_xcoff_backend_data,
+ };
+
+ /*
+ * xcoff-powermac target
+ * Old target.
+ * Only difference between this target and the rs6000 target is the
+ * the default architecture and machine type used in coffcode.h
+ *
+ * PowerPC Macs use the same magic numbers as RS/6000
+ * (because that's how they were bootstrapped originally),
+ * but they are always PowerPC architecture.
+ */
+ static const struct xcoff_backend_data_rec bfd_pmac_xcoff_backend_data =
+ {
+ { /* COFF backend, defined in libcoff.h */
+ _bfd_xcoff_swap_aux_in, /* _bfd_coff_swap_aux_in */
+ _bfd_xcoff_swap_sym_in, /* _bfd_coff_swap_sym_in */
+ coff_swap_lineno_in, /* _bfd_coff_swap_lineno_in */
+ _bfd_xcoff_swap_aux_out, /* _bfd_swap_aux_out */
+ _bfd_xcoff_swap_sym_out, /* _bfd_swap_sym_out */
+ coff_swap_lineno_out, /* _bfd_swap_lineno_out */
+ coff_swap_reloc_out, /* _bfd_swap_reloc_out */
+ coff_swap_filehdr_out, /* _bfd_swap_filehdr_out */
+ coff_swap_aouthdr_out, /* _bfd_swap_aouthdr_out */
+ coff_swap_scnhdr_out, /* _bfd_swap_scnhdr_out */
+ FILHSZ, /* _bfd_filhsz */
+ AOUTSZ, /* _bfd_aoutsz */
+ SCNHSZ, /* _bfd_scnhsz */
+ SYMESZ, /* _bfd_symesz */
+ AUXESZ, /* _bfd_auxesz */
+ RELSZ, /* _bfd_relsz */
+ LINESZ, /* _bfd_linesz */
+ FILNMLEN, /* _bfd_filenmlen */
+ true, /* _bfd_coff_long_filenames */
+ false, /* _bfd_coff_long_section_names */
+ (3), /*
_bfd_coff_default_section_alignment_power */
+ false, /*
_bfd_coff_force_symnames_in_strings */
+ 2, /*
_bfd_coff_debug_string_prefix_length */
+ coff_swap_filehdr_in, /* _bfd_coff_swap_filehdr_in */
+ coff_swap_aouthdr_in, /* _bfd_swap_aouthdr_in */
+ coff_swap_scnhdr_in, /* _bfd_swap_scnhdr_in */
+ coff_swap_reloc_in, /* _bfd_reloc_in */
+ coff_bad_format_hook, /* _bfd_bad_format_hook */
+ coff_set_arch_mach_hook, /* _bfd_set_arch_mach_hook */
+ coff_mkobject_hook, /* _bfd_mkobject_hook */
+ styp_to_sec_flags, /* _bfd_syp_to_sec_flags */
+ coff_set_alignment_hook, /* _bfd_set_alignment_hook */
+ coff_slurp_symbol_table, /* _bfd_coff_slurp_symbol_table */
+ symname_in_debug_hook, /* _coff_symname_in_debug_hook */
+ coff_pointerize_aux_hook, /* _bfd_coff_pointerize_aux_hook */
+ coff_print_aux, /* bfd_coff_print_aux */
+ dummy_reloc16_extra_cases, /* _bfd_coff_reloc16_extra_cases */
+ dummy_reloc16_estimate, /* _bfd_coff_reloc16_estimate */
+ NULL, /* bfd_coff_sym_is_global */
+ /*
_bfd_coff_compute_section_file_positions */
+ coff_compute_section_file_positions,
+ NULL , /* _bfd_coff_start_final_link */
+ xcoff_ppc_relocate_section, /* _bfd_coff_relocate_section */
+ coff_rtype_to_howto, /* _bfd_coff_rtype_to_howto */
+ NULL , /* _bfd_coff_addust_symndx */
+ _bfd_generic_link_add_one_symbol, /* _bfd_coff_add_one_symbol */
+ coff_link_output_has_begun, /* _bfd_coff_link_output_has_begun
*/
+ coff_final_link_postscript /* _bfd_coff_final_link_postscript
*/
+ },
+
+ 0x01DF, /* magic number */
+ 0x0000, /* _reservered_1 */
+ bfd_arch_powerpc, /* architecture */
+ bfd_mach_ppc, /* machine */
+
+ /* function pointers to xcoff specific swap routines */
+ xcoff_swap_ldhdr_in, /* _xcoff_swap_ldhdr_in */
+ xcoff_swap_ldhdr_out, /* _xcoff_swap_ldhdr_out */
+ xcoff_swap_ldsym_in, /* _xcoff_swap_ldsym_in */
+ xcoff_swap_ldsym_out, /* _xcoff_swap_ldsym_out */
+ xcoff_swap_ldrel_in, /* _xcoff_swap_ldrel_in */
+ xcoff_swap_ldrel_out, /* _xcoff_swap_ldrel_out */
+
+ /* sizes */
+ LDHDRSZ, /* _xcoff_ldhdrsz */
+ LDSYMSZ, /* _xcoff_ldsymsz */
+ LDRELSZ, /* _xcoff_ldrelsz */
+ 12, /* _xcoff_function_descriptor_size
*/
+ SMALL_AOUTSZ, /* _xcoff_small_aout_header_size */
+
+ /* versions */
+ 1, /* _xcoff_ldhdr_version */
+
+ /* xcoff vs xcoff64 putting symbol names */
+ _bfd_xcoff_put_symbol_name, /* _xcoff_put_symbol_name */
+ _bfd_xcoff_put_ldsymbol_name, /* _xcoff_put_ldsymbol_name */
+
+ &xcoff_dynamic_reloc, /* dynamic reloc howto */
+ _bfd_xcoff_rtype_to_canonical_reloc_howto,
/*_xcoff_rtype_to_canonical_reloc */
+
+ xcoff_create_csect_from_smclas, /* _xcoff_create_csect_from_smclas
*/
+
+ /* lineno and reloc count overflow */
+ xcoff_is_lineno_count_overflow,
+ xcoff_is_reloc_count_overflow,
+
+ xcoff_loader_symbol_offset,
+ xcoff_loader_reloc_offset,
+
+ /* glink */
+ &xcoff_glink_code[0],
+ (36), /* _xcoff_glink_size */
+
+ };
+
+ /* The transfer vector that leads the outside world to all of the above.
*/
+ const bfd_target pmac_xcoff_vec =
+ {
+ "xcoff-powermac",
+ bfd_target_xcoff_flavour,
+ BFD_ENDIAN_BIG, /* data byte order is big */
+ BFD_ENDIAN_BIG, /* header byte order is big */
+
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG | DYNAMIC |
+ HAS_SYMS | HAS_LOCALS | WP_TEXT),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags
*/
+ 0, /* leading char */
+ '/', /* ar_pad_char */
+ 15, /* ar_max_namelen??? FIXMEmgo */
+
+ /* data */
+ bfd_getb64, /* bfd_getx64 */
+ bfd_getb_signed_64, /* bfd_getx_signed_64 */
+ bfd_putb64, /* bfd_putx64 */
+ bfd_getb32, /* bfd_getx32 */
+ bfd_getb_signed_32, /* bfd_getx_signed_32 */
+ bfd_putb32, /* bfd_putx32 */
+ bfd_getb16, /* bfd_getx16 */
+ bfd_getb_signed_16, /* bfd_getx_signed_16 */
+ bfd_putb16, /* bfd_putx16 */
+
+ /* hdrs */
+ bfd_getb64, /* bfd_h_getx64 */
+ bfd_getb_signed_64, /* bfd_h_getx_signed_64 */
+ bfd_putb64, /* bfd_h_putx64 */
+ bfd_getb32, /* bfd_h_getx32 */
+ bfd_getb_signed_32, /* bfd_h_getx_signed_32 */
+ bfd_putb32, /* bfd_h_putx32 */
+ bfd_getb16, /* bfd_h_getx16 */
+ bfd_getb_signed_16, /* bfd_h_getx_signed_16 */
+ bfd_putb16, /* bfd_h_putx16 */
+
+ { /* bfd_check_format */
+ _bfd_dummy_target,
+ coff_object_p,
+ _bfd_xcoff_archive_p,
+ CORE_FILE_P
+ },
+
+ { /* bfd_set_format */
+ bfd_false,
+ coff_mkobject,
+ _bfd_generic_mkarchive,
+ bfd_false
+ },
+
+ {/* bfd_write_contents */
+ bfd_false,
+ coff_write_object_contents,
+ _bfd_xcoff_write_archive_contents,
+ bfd_false
+ },
+
+ /* Generic */
+ bfd_true, /* _close_and_cleanup */
+ bfd_true, /* _bfd_free_cached_info */
+ coff_new_section_hook, /* _new_section_hook */
+ _bfd_generic_get_section_contents, /* _bfd_get_section_contents */
+ /*
_bfd_get_section_contents_in_window */
+ _bfd_generic_get_section_contents_in_window,
+
+ /* Copy */
+ _bfd_xcoff_copy_private_bfd_data, /* _bfd_copy_private_bfd */
+ /* _bfd_merge_private_bfd_data */
+ ((boolean (*) (bfd *, bfd *)) bfd_true),
+ /* _bfd_copy_pivate_section_data */
+ ((boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
+ /* _bfd_copy_private_symbol_data */
+ ((boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
+ ((boolean (*) (bfd *, flagword)) bfd_true), /* _bfd_set_private_flags */
+ ((boolean (*) (bfd *, void * )) bfd_true), /*
_bfd_print_private_bfd_data */
+
+ /* Core */
+ rs6000coff_core_file_failing_command, /* _core_file_failing_command
*/
+ rs6000coff_core_file_failing_signal, /* _core_file_failing_signal */
+ /*
_core_file_matches_executable_p */
+ rs6000coff_core_file_matches_executable_p,
+
+ /* Archive */
+ _bfd_xcoff_slurp_armap, /* _slurp_armap */
+ /* XCOFF archives do not have
+ anything which corresponds to
+ an extended name table. */
+ bfd_false, /* _slurp_extended_name_table
*/
+ /*
_construct_extended_name_table */
+ ((boolean (*) (bfd *, char **, bfd_size_type *, const char **))
bfd_false),
+ bfd_dont_truncate_arname, /* _truncate_arname */
+ _bfd_xcoff_write_armap, /* _write_armap */
+ _bfd_xcoff_read_ar_hdr, /* _read_ar_hdr */
+ _bfd_xcoff_openr_next_archived_file, /* _openr_next_archived_file */
+ _bfd_generic_get_elt_at_index, /* _get_elt_at_index */
+ _bfd_xcoff_generic_stat_arch_elt, /* _generic_dtat_arch_elt */
+ /* XCOFF archives do not have
+ a timestamp. */
+ bfd_true, /* _update_armap_timestamp */
+
+ /* Symbols */
+ coff_get_symtab_upper_bound, /* _get_symtab_upper_bound */
+ coff_get_symtab, /* _get_symtab */
+ coff_make_empty_symbol, /* _make_empty_symbol */
+ coff_print_symbol, /* _print_symbol */
+ coff_get_symbol_info, /* _get_symbol_info */
+ _bfd_xcoff_is_local_label_name, /* _bfd_is_local_label_name */
+ coff_get_lineno, /* _get_lineno */
+ coff_find_nearest_line, /* _find_nearest_line */
+ coff_bfd_make_debug_symbol, /* _bfd_make_debug_symbol */
+ _bfd_generic_read_minisymbols, /* _read_minisymbols */
+ _bfd_generic_minisymbol_to_symbol, /* _minsymbol_to_symbol */
+
+ /* Reloc */
+ coff_get_reloc_upper_bound, /* _get_reloc_upper_bound */
+ coff_canonicalize_reloc, /* _cononicalize_reloc */
+ _bfd_xcoff_reloc_type_lookup, /* _bfd_reloc_type_lookup */
+
+ /* Write */
+ coff_set_arch_mach, /* _set_arch_mach */
+ coff_set_section_contents, /* _set_section_contents */
+
+ /* Link */
+ _bfd_xcoff_sizeof_headers, /* _sizeof_headers */
+ /*
_bfd_get_relocated_section_contents */
+ bfd_generic_get_relocated_section_contents,
+ bfd_generic_relax_section, /* _bfd_relax_section */
+ _bfd_xcoff_bfd_link_hash_table_create, /* _bfd_link_hash_table_create
*/
+ _bfd_xcoff_bfd_link_add_symbols, /* _bfd_link_add_symbols */
+ _bfd_xcoff_bfd_final_link, /* _bfd_filnal_link */
+ _bfd_generic_link_split_section, /* _bfd_link_split_section */
+ bfd_generic_gc_sections, /* _bfd_gc_sections */
+
+ /* Dynamic */
+ /*
_get_dynamic_symtab_upper_bound */
+ _bfd_xcoff_get_dynamic_symtab_upper_bound,
+ _bfd_xcoff_canonicalize_dynamic_symtab, /* _cononicalize_dynamic_symtab
*/
+ _bfd_xcoff_get_dynamic_reloc_upper_bound,/*
_get_dynamic_reloc_upper_bound */
+ _bfd_xcoff_canonicalize_dynamic_reloc, /* _cononicalize_dynamic_reloc
*/
+
+ /* Opposite endian version, none exists */
+ NULL,
+
+ /* back end data */
+ (void *) &bfd_pmac_xcoff_backend_data,
+ };