4850 lines
138 KiB
C
4850 lines
138 KiB
C
/* Generic ECOFF (Extended-COFF) routines.
|
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Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
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Free Software Foundation, Inc.
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Original version by Per Bothner.
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Full support added by Ian Lance Taylor, ian@cygnus.com.
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||
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "aout/ar.h"
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#include "aout/ranlib.h"
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#include "aout/stab_gnu.h"
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/* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines
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some other stuff which we don't want and which conflicts with stuff
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we do want. */
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#include "libaout.h"
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#include "aout/aout64.h"
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#undef N_ABS
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#undef exec_hdr
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#undef obj_sym_filepos
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#include "coff/internal.h"
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#include "coff/sym.h"
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#include "coff/symconst.h"
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#include "coff/ecoff.h"
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#include "libcoff.h"
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#include "libecoff.h"
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/* Prototypes for static functions. */
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static int ecoff_get_magic PARAMS ((bfd *abfd));
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static long ecoff_sec_to_styp_flags PARAMS ((const char *name,
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flagword flags));
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static boolean ecoff_slurp_symbolic_header PARAMS ((bfd *abfd));
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static boolean ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym,
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asymbol *asym, int ext, int weak));
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static void ecoff_emit_aggregate PARAMS ((bfd *abfd, FDR *fdr,
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char *string,
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RNDXR *rndx, long isym,
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const char *which));
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static char *ecoff_type_to_string PARAMS ((bfd *abfd, FDR *fdr,
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unsigned int indx));
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static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section,
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asymbol **symbols));
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static int ecoff_sort_hdrs PARAMS ((const PTR, const PTR));
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static boolean ecoff_compute_section_file_positions PARAMS ((bfd *abfd));
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static bfd_size_type ecoff_compute_reloc_file_positions PARAMS ((bfd *abfd));
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static boolean ecoff_get_extr PARAMS ((asymbol *, EXTR *));
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static void ecoff_set_index PARAMS ((asymbol *, bfd_size_type));
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static unsigned int ecoff_armap_hash PARAMS ((CONST char *s,
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unsigned int *rehash,
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unsigned int size,
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unsigned int hlog));
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/* This stuff is somewhat copied from coffcode.h. */
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static asection bfd_debug_section =
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{
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/* name, index, next, flags, set_vma, reloc_done, linker_mark, gc_mark */
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"*DEBUG*", 0, 0, 0, 0, 0, 0, 0,
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/* vma, lma, _cooked_size, _raw_size, output_offset, output_section, */
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0, 0, 0, 0, 0, NULL,
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/* alig, reloc..., orel..., reloc_count, filepos, rel_..., line_... */
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0, 0, 0, 0, 0, 0, 0,
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/* userdata, contents, lineno, lineno_count */
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0, 0, 0, 0,
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/* comdat_info, moving_line_filepos, target_index, used_by_bfd, */
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NULL, 0, 0, 0,
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/* cons, owner, symbol */
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0, 0, (struct symbol_cache_entry *) NULL,
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/* symbol_ptr_ptr, link_order_head, ..._tail */
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(struct symbol_cache_entry **) NULL, NULL, NULL
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};
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/* Create an ECOFF object. */
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boolean
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_bfd_ecoff_mkobject (abfd)
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bfd *abfd;
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{
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abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *)
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bfd_zalloc (abfd, sizeof (ecoff_data_type)));
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if (abfd->tdata.ecoff_obj_data == NULL)
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return false;
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return true;
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}
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/* This is a hook called by coff_real_object_p to create any backend
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specific information. */
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PTR
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_bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr)
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bfd *abfd;
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PTR filehdr;
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PTR aouthdr;
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{
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struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
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struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr;
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ecoff_data_type *ecoff;
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if (_bfd_ecoff_mkobject (abfd) == false)
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return NULL;
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ecoff = ecoff_data (abfd);
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ecoff->gp_size = 8;
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ecoff->sym_filepos = internal_f->f_symptr;
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if (internal_a != (struct internal_aouthdr *) NULL)
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{
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int i;
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ecoff->text_start = internal_a->text_start;
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ecoff->text_end = internal_a->text_start + internal_a->tsize;
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ecoff->gp = internal_a->gp_value;
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ecoff->gprmask = internal_a->gprmask;
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for (i = 0; i < 4; i++)
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ecoff->cprmask[i] = internal_a->cprmask[i];
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ecoff->fprmask = internal_a->fprmask;
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if (internal_a->magic == ECOFF_AOUT_ZMAGIC)
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abfd->flags |= D_PAGED;
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else
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abfd->flags &=~ D_PAGED;
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}
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/* It turns out that no special action is required by the MIPS or
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Alpha ECOFF backends. They have different information in the
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a.out header, but we just copy it all (e.g., gprmask, cprmask and
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fprmask) and let the swapping routines ensure that only relevant
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information is written out. */
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return (PTR) ecoff;
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}
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/* Initialize a new section. */
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boolean
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_bfd_ecoff_new_section_hook (abfd, section)
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bfd *abfd ATTRIBUTE_UNUSED;
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asection *section;
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{
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section->alignment_power = 4;
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if (strcmp (section->name, _TEXT) == 0
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|| strcmp (section->name, _INIT) == 0
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|| strcmp (section->name, _FINI) == 0)
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section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
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else if (strcmp (section->name, _DATA) == 0
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|| strcmp (section->name, _SDATA) == 0)
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section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
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else if (strcmp (section->name, _RDATA) == 0
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|| strcmp (section->name, _LIT8) == 0
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|| strcmp (section->name, _LIT4) == 0
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|| strcmp (section->name, _RCONST) == 0
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|| strcmp (section->name, _PDATA) == 0)
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section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY;
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else if (strcmp (section->name, _BSS) == 0
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|| strcmp (section->name, _SBSS) == 0)
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section->flags |= SEC_ALLOC;
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else if (strcmp (section->name, _LIB) == 0)
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{
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/* An Irix 4 shared libary. */
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section->flags |= SEC_COFF_SHARED_LIBRARY;
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}
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/* Probably any other section name is SEC_NEVER_LOAD, but I'm
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uncertain about .init on some systems and I don't know how shared
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libraries work. */
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||
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return true;
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}
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/* Determine the machine architecture and type. This is called from
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the generic COFF routines. It is the inverse of ecoff_get_magic,
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below. This could be an ECOFF backend routine, with one version
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for each target, but there aren't all that many ECOFF targets. */
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boolean
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_bfd_ecoff_set_arch_mach_hook (abfd, filehdr)
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bfd *abfd;
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PTR filehdr;
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{
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||
struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
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enum bfd_architecture arch;
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unsigned long mach;
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switch (internal_f->f_magic)
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{
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case MIPS_MAGIC_1:
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case MIPS_MAGIC_LITTLE:
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case MIPS_MAGIC_BIG:
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arch = bfd_arch_mips;
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mach = 3000;
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break;
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case MIPS_MAGIC_LITTLE2:
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case MIPS_MAGIC_BIG2:
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/* MIPS ISA level 2: the r6000 */
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arch = bfd_arch_mips;
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mach = 6000;
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break;
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case MIPS_MAGIC_LITTLE3:
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case MIPS_MAGIC_BIG3:
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/* MIPS ISA level 3: the r4000 */
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arch = bfd_arch_mips;
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mach = 4000;
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break;
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case ALPHA_MAGIC:
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arch = bfd_arch_alpha;
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mach = 0;
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break;
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default:
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arch = bfd_arch_obscure;
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mach = 0;
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break;
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||
}
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return bfd_default_set_arch_mach (abfd, arch, mach);
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}
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/* Get the magic number to use based on the architecture and machine.
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This is the inverse of _bfd_ecoff_set_arch_mach_hook, above. */
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static int
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ecoff_get_magic (abfd)
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bfd *abfd;
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{
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int big, little;
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switch (bfd_get_arch (abfd))
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{
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case bfd_arch_mips:
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switch (bfd_get_mach (abfd))
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{
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default:
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case 0:
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case 3000:
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big = MIPS_MAGIC_BIG;
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little = MIPS_MAGIC_LITTLE;
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break;
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case 6000:
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big = MIPS_MAGIC_BIG2;
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little = MIPS_MAGIC_LITTLE2;
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break;
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case 4000:
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big = MIPS_MAGIC_BIG3;
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little = MIPS_MAGIC_LITTLE3;
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break;
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}
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return bfd_big_endian (abfd) ? big : little;
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case bfd_arch_alpha:
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return ALPHA_MAGIC;
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default:
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abort ();
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return 0;
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}
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}
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/* Get the section s_flags to use for a section. */
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static long
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ecoff_sec_to_styp_flags (name, flags)
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const char *name;
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flagword flags;
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{
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long styp;
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styp = 0;
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if (strcmp (name, _TEXT) == 0)
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styp = STYP_TEXT;
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else if (strcmp (name, _DATA) == 0)
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styp = STYP_DATA;
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else if (strcmp (name, _SDATA) == 0)
|
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styp = STYP_SDATA;
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else if (strcmp (name, _RDATA) == 0)
|
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styp = STYP_RDATA;
|
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else if (strcmp (name, _LITA) == 0)
|
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styp = STYP_LITA;
|
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else if (strcmp (name, _LIT8) == 0)
|
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styp = STYP_LIT8;
|
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else if (strcmp (name, _LIT4) == 0)
|
||
styp = STYP_LIT4;
|
||
else if (strcmp (name, _BSS) == 0)
|
||
styp = STYP_BSS;
|
||
else if (strcmp (name, _SBSS) == 0)
|
||
styp = STYP_SBSS;
|
||
else if (strcmp (name, _INIT) == 0)
|
||
styp = STYP_ECOFF_INIT;
|
||
else if (strcmp (name, _FINI) == 0)
|
||
styp = STYP_ECOFF_FINI;
|
||
else if (strcmp (name, _PDATA) == 0)
|
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styp = STYP_PDATA;
|
||
else if (strcmp (name, _XDATA) == 0)
|
||
styp = STYP_XDATA;
|
||
else if (strcmp (name, _LIB) == 0)
|
||
styp = STYP_ECOFF_LIB;
|
||
else if (strcmp (name, _GOT) == 0)
|
||
styp = STYP_GOT;
|
||
else if (strcmp (name, _HASH) == 0)
|
||
styp = STYP_HASH;
|
||
else if (strcmp (name, _DYNAMIC) == 0)
|
||
styp = STYP_DYNAMIC;
|
||
else if (strcmp (name, _LIBLIST) == 0)
|
||
styp = STYP_LIBLIST;
|
||
else if (strcmp (name, _RELDYN) == 0)
|
||
styp = STYP_RELDYN;
|
||
else if (strcmp (name, _CONFLIC) == 0)
|
||
styp = STYP_CONFLIC;
|
||
else if (strcmp (name, _DYNSTR) == 0)
|
||
styp = STYP_DYNSTR;
|
||
else if (strcmp (name, _DYNSYM) == 0)
|
||
styp = STYP_DYNSYM;
|
||
else if (strcmp (name, _COMMENT) == 0)
|
||
{
|
||
styp = STYP_COMMENT;
|
||
flags &=~ SEC_NEVER_LOAD;
|
||
}
|
||
else if (strcmp (name, _RCONST) == 0)
|
||
styp = STYP_RCONST;
|
||
else if (flags & SEC_CODE)
|
||
styp = STYP_TEXT;
|
||
else if (flags & SEC_DATA)
|
||
styp = STYP_DATA;
|
||
else if (flags & SEC_READONLY)
|
||
styp = STYP_RDATA;
|
||
else if (flags & SEC_LOAD)
|
||
styp = STYP_REG;
|
||
else
|
||
styp = STYP_BSS;
|
||
|
||
if (flags & SEC_NEVER_LOAD)
|
||
styp |= STYP_NOLOAD;
|
||
|
||
return styp;
|
||
}
|
||
|
||
/* Get the BFD flags to use for a section. */
|
||
|
||
/*ARGSUSED*/
|
||
flagword
|
||
_bfd_ecoff_styp_to_sec_flags (abfd, hdr, name, section)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
PTR hdr;
|
||
const char *name ATTRIBUTE_UNUSED;
|
||
asection *section ATTRIBUTE_UNUSED;
|
||
{
|
||
struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
|
||
long styp_flags = internal_s->s_flags;
|
||
flagword sec_flags=0;
|
||
|
||
if (styp_flags & STYP_NOLOAD)
|
||
sec_flags |= SEC_NEVER_LOAD;
|
||
|
||
/* For 386 COFF, at least, an unloadable text or data section is
|
||
actually a shared library section. */
|
||
if ((styp_flags & STYP_TEXT)
|
||
|| (styp_flags & STYP_ECOFF_INIT)
|
||
|| (styp_flags & STYP_ECOFF_FINI)
|
||
|| (styp_flags & STYP_DYNAMIC)
|
||
|| (styp_flags & STYP_LIBLIST)
|
||
|| (styp_flags & STYP_RELDYN)
|
||
|| styp_flags == STYP_CONFLIC
|
||
|| (styp_flags & STYP_DYNSTR)
|
||
|| (styp_flags & STYP_DYNSYM)
|
||
|| (styp_flags & STYP_HASH))
|
||
{
|
||
if (sec_flags & SEC_NEVER_LOAD)
|
||
sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY;
|
||
else
|
||
sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
|
||
}
|
||
else if ((styp_flags & STYP_DATA)
|
||
|| (styp_flags & STYP_RDATA)
|
||
|| (styp_flags & STYP_SDATA)
|
||
|| styp_flags == STYP_PDATA
|
||
|| styp_flags == STYP_XDATA
|
||
|| (styp_flags & STYP_GOT)
|
||
|| styp_flags == STYP_RCONST)
|
||
{
|
||
if (sec_flags & SEC_NEVER_LOAD)
|
||
sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY;
|
||
else
|
||
sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
|
||
if ((styp_flags & STYP_RDATA)
|
||
|| styp_flags == STYP_PDATA
|
||
|| styp_flags == STYP_RCONST)
|
||
sec_flags |= SEC_READONLY;
|
||
}
|
||
else if ((styp_flags & STYP_BSS)
|
||
|| (styp_flags & STYP_SBSS))
|
||
{
|
||
sec_flags |= SEC_ALLOC;
|
||
}
|
||
else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT)
|
||
{
|
||
sec_flags |= SEC_NEVER_LOAD;
|
||
}
|
||
else if ((styp_flags & STYP_LITA)
|
||
|| (styp_flags & STYP_LIT8)
|
||
|| (styp_flags & STYP_LIT4))
|
||
{
|
||
sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY;
|
||
}
|
||
else if (styp_flags & STYP_ECOFF_LIB)
|
||
{
|
||
sec_flags |= SEC_COFF_SHARED_LIBRARY;
|
||
}
|
||
else
|
||
{
|
||
sec_flags |= SEC_ALLOC | SEC_LOAD;
|
||
}
|
||
|
||
return sec_flags;
|
||
}
|
||
|
||
/* Read in the symbolic header for an ECOFF object file. */
|
||
|
||
static boolean
|
||
ecoff_slurp_symbolic_header (abfd)
|
||
bfd *abfd;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
bfd_size_type external_hdr_size;
|
||
PTR raw = NULL;
|
||
HDRR *internal_symhdr;
|
||
|
||
/* See if we've already read it in. */
|
||
if (ecoff_data (abfd)->debug_info.symbolic_header.magic ==
|
||
backend->debug_swap.sym_magic)
|
||
return true;
|
||
|
||
/* See whether there is a symbolic header. */
|
||
if (ecoff_data (abfd)->sym_filepos == 0)
|
||
{
|
||
bfd_get_symcount (abfd) = 0;
|
||
return true;
|
||
}
|
||
|
||
/* At this point bfd_get_symcount (abfd) holds the number of symbols
|
||
as read from the file header, but on ECOFF this is always the
|
||
size of the symbolic information header. It would be cleaner to
|
||
handle this when we first read the file in coffgen.c. */
|
||
external_hdr_size = backend->debug_swap.external_hdr_size;
|
||
if (bfd_get_symcount (abfd) != external_hdr_size)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return false;
|
||
}
|
||
|
||
/* Read the symbolic information header. */
|
||
raw = (PTR) bfd_malloc ((size_t) external_hdr_size);
|
||
if (raw == NULL)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1
|
||
|| (bfd_read (raw, external_hdr_size, 1, abfd)
|
||
!= external_hdr_size))
|
||
goto error_return;
|
||
internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header;
|
||
(*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr);
|
||
|
||
if (internal_symhdr->magic != backend->debug_swap.sym_magic)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
goto error_return;
|
||
}
|
||
|
||
/* Now we can get the correct number of symbols. */
|
||
bfd_get_symcount (abfd) = (internal_symhdr->isymMax
|
||
+ internal_symhdr->iextMax);
|
||
|
||
if (raw != NULL)
|
||
free (raw);
|
||
return true;
|
||
error_return:
|
||
if (raw != NULL)
|
||
free (raw);
|
||
return false;
|
||
}
|
||
|
||
/* Read in and swap the important symbolic information for an ECOFF
|
||
object file. This is called by gdb via the read_debug_info entry
|
||
point in the backend structure. */
|
||
|
||
/*ARGSUSED*/
|
||
boolean
|
||
_bfd_ecoff_slurp_symbolic_info (abfd, ignore, debug)
|
||
bfd *abfd;
|
||
asection *ignore ATTRIBUTE_UNUSED;
|
||
struct ecoff_debug_info *debug;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
HDRR *internal_symhdr;
|
||
bfd_size_type raw_base;
|
||
bfd_size_type raw_size;
|
||
PTR raw;
|
||
bfd_size_type external_fdr_size;
|
||
char *fraw_src;
|
||
char *fraw_end;
|
||
struct fdr *fdr_ptr;
|
||
bfd_size_type raw_end;
|
||
bfd_size_type cb_end;
|
||
|
||
BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info);
|
||
|
||
/* Check whether we've already gotten it, and whether there's any to
|
||
get. */
|
||
if (ecoff_data (abfd)->raw_syments != (PTR) NULL)
|
||
return true;
|
||
if (ecoff_data (abfd)->sym_filepos == 0)
|
||
{
|
||
bfd_get_symcount (abfd) = 0;
|
||
return true;
|
||
}
|
||
|
||
if (! ecoff_slurp_symbolic_header (abfd))
|
||
return false;
|
||
|
||
internal_symhdr = &debug->symbolic_header;
|
||
|
||
/* Read all the symbolic information at once. */
|
||
raw_base = (ecoff_data (abfd)->sym_filepos
|
||
+ backend->debug_swap.external_hdr_size);
|
||
|
||
/* Alpha ecoff makes the determination of raw_size difficult. It has
|
||
an undocumented debug data section between the symhdr and the first
|
||
documented section. And the ordering of the sections varies between
|
||
statically and dynamically linked executables.
|
||
If bfd supports SEEK_END someday, this code could be simplified. */
|
||
|
||
raw_end = 0;
|
||
|
||
#define UPDATE_RAW_END(start, count, size) \
|
||
cb_end = internal_symhdr->start + internal_symhdr->count * (size); \
|
||
if (cb_end > raw_end) \
|
||
raw_end = cb_end
|
||
|
||
UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char));
|
||
UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size);
|
||
UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size);
|
||
UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size);
|
||
UPDATE_RAW_END (cbOptOffset, ioptMax, backend->debug_swap.external_opt_size);
|
||
UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext));
|
||
UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char));
|
||
UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char));
|
||
UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size);
|
||
UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size);
|
||
UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size);
|
||
|
||
#undef UPDATE_RAW_END
|
||
|
||
raw_size = raw_end - raw_base;
|
||
if (raw_size == 0)
|
||
{
|
||
ecoff_data (abfd)->sym_filepos = 0;
|
||
return true;
|
||
}
|
||
raw = (PTR) bfd_alloc (abfd, raw_size);
|
||
if (raw == NULL)
|
||
return false;
|
||
if (bfd_seek (abfd,
|
||
(ecoff_data (abfd)->sym_filepos
|
||
+ backend->debug_swap.external_hdr_size),
|
||
SEEK_SET) != 0
|
||
|| bfd_read (raw, raw_size, 1, abfd) != raw_size)
|
||
{
|
||
bfd_release (abfd, raw);
|
||
return false;
|
||
}
|
||
|
||
ecoff_data (abfd)->raw_syments = raw;
|
||
|
||
/* Get pointers for the numeric offsets in the HDRR structure. */
|
||
#define FIX(off1, off2, type) \
|
||
if (internal_symhdr->off1 == 0) \
|
||
debug->off2 = (type) NULL; \
|
||
else \
|
||
debug->off2 = (type) ((char *) raw \
|
||
+ (internal_symhdr->off1 \
|
||
- raw_base))
|
||
FIX (cbLineOffset, line, unsigned char *);
|
||
FIX (cbDnOffset, external_dnr, PTR);
|
||
FIX (cbPdOffset, external_pdr, PTR);
|
||
FIX (cbSymOffset, external_sym, PTR);
|
||
FIX (cbOptOffset, external_opt, PTR);
|
||
FIX (cbAuxOffset, external_aux, union aux_ext *);
|
||
FIX (cbSsOffset, ss, char *);
|
||
FIX (cbSsExtOffset, ssext, char *);
|
||
FIX (cbFdOffset, external_fdr, PTR);
|
||
FIX (cbRfdOffset, external_rfd, PTR);
|
||
FIX (cbExtOffset, external_ext, PTR);
|
||
#undef FIX
|
||
|
||
/* I don't want to always swap all the data, because it will just
|
||
waste time and most programs will never look at it. The only
|
||
time the linker needs most of the debugging information swapped
|
||
is when linking big-endian and little-endian MIPS object files
|
||
together, which is not a common occurrence.
|
||
|
||
We need to look at the fdr to deal with a lot of information in
|
||
the symbols, so we swap them here. */
|
||
debug->fdr = (struct fdr *) bfd_alloc (abfd,
|
||
(internal_symhdr->ifdMax *
|
||
sizeof (struct fdr)));
|
||
if (debug->fdr == NULL)
|
||
return false;
|
||
external_fdr_size = backend->debug_swap.external_fdr_size;
|
||
fdr_ptr = debug->fdr;
|
||
fraw_src = (char *) debug->external_fdr;
|
||
fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size;
|
||
for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
|
||
(*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
|
||
|
||
return true;
|
||
}
|
||
|
||
/* ECOFF symbol table routines. The ECOFF symbol table is described
|
||
in gcc/mips-tfile.c. */
|
||
|
||
/* ECOFF uses two common sections. One is the usual one, and the
|
||
other is for small objects. All the small objects are kept
|
||
together, and then referenced via the gp pointer, which yields
|
||
faster assembler code. This is what we use for the small common
|
||
section. */
|
||
static asection ecoff_scom_section;
|
||
static asymbol ecoff_scom_symbol;
|
||
static asymbol *ecoff_scom_symbol_ptr;
|
||
|
||
/* Create an empty symbol. */
|
||
|
||
asymbol *
|
||
_bfd_ecoff_make_empty_symbol (abfd)
|
||
bfd *abfd;
|
||
{
|
||
ecoff_symbol_type *new;
|
||
|
||
new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type));
|
||
if (new == (ecoff_symbol_type *) NULL)
|
||
return (asymbol *) NULL;
|
||
memset ((PTR) new, 0, sizeof *new);
|
||
new->symbol.section = (asection *) NULL;
|
||
new->fdr = (FDR *) NULL;
|
||
new->local = false;
|
||
new->native = NULL;
|
||
new->symbol.the_bfd = abfd;
|
||
return &new->symbol;
|
||
}
|
||
|
||
/* Set the BFD flags and section for an ECOFF symbol. */
|
||
|
||
static boolean
|
||
ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, weak)
|
||
bfd *abfd;
|
||
SYMR *ecoff_sym;
|
||
asymbol *asym;
|
||
int ext;
|
||
int weak;
|
||
{
|
||
asym->the_bfd = abfd;
|
||
asym->value = ecoff_sym->value;
|
||
asym->section = &bfd_debug_section;
|
||
asym->udata.i = 0;
|
||
|
||
/* Most symbol types are just for debugging. */
|
||
switch (ecoff_sym->st)
|
||
{
|
||
case stGlobal:
|
||
case stStatic:
|
||
case stLabel:
|
||
case stProc:
|
||
case stStaticProc:
|
||
break;
|
||
case stNil:
|
||
if (ECOFF_IS_STAB (ecoff_sym))
|
||
{
|
||
asym->flags = BSF_DEBUGGING;
|
||
return true;
|
||
}
|
||
break;
|
||
default:
|
||
asym->flags = BSF_DEBUGGING;
|
||
return true;
|
||
}
|
||
|
||
if (weak)
|
||
asym->flags = BSF_EXPORT | BSF_WEAK;
|
||
else if (ext)
|
||
asym->flags = BSF_EXPORT | BSF_GLOBAL;
|
||
else
|
||
{
|
||
asym->flags = BSF_LOCAL;
|
||
/* Normally, a local stProc symbol will have a corresponding
|
||
external symbol. We mark the local symbol as a debugging
|
||
symbol, in order to prevent nm from printing both out.
|
||
Similarly, we mark stLabel and stabs symbols as debugging
|
||
symbols. In both cases, we do want to set the value
|
||
correctly based on the symbol class. */
|
||
if (ecoff_sym->st == stProc
|
||
|| ecoff_sym->st == stLabel
|
||
|| ECOFF_IS_STAB (ecoff_sym))
|
||
asym->flags |= BSF_DEBUGGING;
|
||
}
|
||
switch (ecoff_sym->sc)
|
||
{
|
||
case scNil:
|
||
/* Used for compiler generated labels. Leave them in the
|
||
debugging section, and mark them as local. If BSF_DEBUGGING
|
||
is set, then nm does not display them for some reason. If no
|
||
flags are set then the linker whines about them. */
|
||
asym->flags = BSF_LOCAL;
|
||
break;
|
||
case scText:
|
||
asym->section = bfd_make_section_old_way (abfd, ".text");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scData:
|
||
asym->section = bfd_make_section_old_way (abfd, ".data");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scBss:
|
||
asym->section = bfd_make_section_old_way (abfd, ".bss");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scRegister:
|
||
asym->flags = BSF_DEBUGGING;
|
||
break;
|
||
case scAbs:
|
||
asym->section = bfd_abs_section_ptr;
|
||
break;
|
||
case scUndefined:
|
||
asym->section = bfd_und_section_ptr;
|
||
asym->flags = 0;
|
||
asym->value = 0;
|
||
break;
|
||
case scCdbLocal:
|
||
case scBits:
|
||
case scCdbSystem:
|
||
case scRegImage:
|
||
case scInfo:
|
||
case scUserStruct:
|
||
asym->flags = BSF_DEBUGGING;
|
||
break;
|
||
case scSData:
|
||
asym->section = bfd_make_section_old_way (abfd, ".sdata");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scSBss:
|
||
asym->section = bfd_make_section_old_way (abfd, ".sbss");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scRData:
|
||
asym->section = bfd_make_section_old_way (abfd, ".rdata");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scVar:
|
||
asym->flags = BSF_DEBUGGING;
|
||
break;
|
||
case scCommon:
|
||
if (asym->value > ecoff_data (abfd)->gp_size)
|
||
{
|
||
asym->section = bfd_com_section_ptr;
|
||
asym->flags = 0;
|
||
break;
|
||
}
|
||
/* Fall through. */
|
||
case scSCommon:
|
||
if (ecoff_scom_section.name == NULL)
|
||
{
|
||
/* Initialize the small common section. */
|
||
ecoff_scom_section.name = SCOMMON;
|
||
ecoff_scom_section.flags = SEC_IS_COMMON;
|
||
ecoff_scom_section.output_section = &ecoff_scom_section;
|
||
ecoff_scom_section.symbol = &ecoff_scom_symbol;
|
||
ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr;
|
||
ecoff_scom_symbol.name = SCOMMON;
|
||
ecoff_scom_symbol.flags = BSF_SECTION_SYM;
|
||
ecoff_scom_symbol.section = &ecoff_scom_section;
|
||
ecoff_scom_symbol_ptr = &ecoff_scom_symbol;
|
||
}
|
||
asym->section = &ecoff_scom_section;
|
||
asym->flags = 0;
|
||
break;
|
||
case scVarRegister:
|
||
case scVariant:
|
||
asym->flags = BSF_DEBUGGING;
|
||
break;
|
||
case scSUndefined:
|
||
asym->section = bfd_und_section_ptr;
|
||
asym->flags = 0;
|
||
asym->value = 0;
|
||
break;
|
||
case scInit:
|
||
asym->section = bfd_make_section_old_way (abfd, ".init");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scBasedVar:
|
||
case scXData:
|
||
case scPData:
|
||
asym->flags = BSF_DEBUGGING;
|
||
break;
|
||
case scFini:
|
||
asym->section = bfd_make_section_old_way (abfd, ".fini");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
case scRConst:
|
||
asym->section = bfd_make_section_old_way (abfd, ".rconst");
|
||
asym->value -= asym->section->vma;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Look for special constructors symbols and make relocation entries
|
||
in a special construction section. These are produced by the
|
||
-fgnu-linker argument to g++. */
|
||
if (ECOFF_IS_STAB (ecoff_sym))
|
||
{
|
||
switch (ECOFF_UNMARK_STAB (ecoff_sym->index))
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case N_SETA:
|
||
case N_SETT:
|
||
case N_SETD:
|
||
case N_SETB:
|
||
{
|
||
/* This code is no longer needed. It used to be used to
|
||
make the linker handle set symbols, but they are now
|
||
handled in the add_symbols routine instead. */
|
||
#if 0
|
||
const char *name;
|
||
asection *section;
|
||
arelent_chain *reloc_chain;
|
||
unsigned int bitsize;
|
||
|
||
/* Get a section with the same name as the symbol (usually
|
||
__CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the
|
||
name ___CTOR_LIST (three underscores). We need
|
||
__CTOR_LIST (two underscores), since ECOFF doesn't use
|
||
a leading underscore. This should be handled by gcc,
|
||
but instead we do it here. Actually, this should all
|
||
be done differently anyhow. */
|
||
name = bfd_asymbol_name (asym);
|
||
if (name[0] == '_' && name[1] == '_' && name[2] == '_')
|
||
{
|
||
++name;
|
||
asym->name = name;
|
||
}
|
||
section = bfd_get_section_by_name (abfd, name);
|
||
if (section == (asection *) NULL)
|
||
{
|
||
char *copy;
|
||
|
||
copy = (char *) bfd_alloc (abfd, strlen (name) + 1);
|
||
if (!copy)
|
||
return false;
|
||
strcpy (copy, name);
|
||
section = bfd_make_section (abfd, copy);
|
||
}
|
||
|
||
/* Build a reloc pointing to this constructor. */
|
||
reloc_chain =
|
||
(arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain));
|
||
if (!reloc_chain)
|
||
return false;
|
||
reloc_chain->relent.sym_ptr_ptr =
|
||
bfd_get_section (asym)->symbol_ptr_ptr;
|
||
reloc_chain->relent.address = section->_raw_size;
|
||
reloc_chain->relent.addend = asym->value;
|
||
reloc_chain->relent.howto =
|
||
ecoff_backend (abfd)->constructor_reloc;
|
||
|
||
/* Set up the constructor section to hold the reloc. */
|
||
section->flags = SEC_CONSTRUCTOR;
|
||
++section->reloc_count;
|
||
|
||
/* Constructor sections must be rounded to a boundary
|
||
based on the bitsize. These are not real sections--
|
||
they are handled specially by the linker--so the ECOFF
|
||
16 byte alignment restriction does not apply. */
|
||
bitsize = ecoff_backend (abfd)->constructor_bitsize;
|
||
section->alignment_power = 1;
|
||
while ((1 << section->alignment_power) < bitsize / 8)
|
||
++section->alignment_power;
|
||
|
||
reloc_chain->next = section->constructor_chain;
|
||
section->constructor_chain = reloc_chain;
|
||
section->_raw_size += bitsize / 8;
|
||
|
||
#endif /* 0 */
|
||
|
||
/* Mark the symbol as a constructor. */
|
||
asym->flags |= BSF_CONSTRUCTOR;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/* Read an ECOFF symbol table. */
|
||
|
||
boolean
|
||
_bfd_ecoff_slurp_symbol_table (abfd)
|
||
bfd *abfd;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
const bfd_size_type external_ext_size
|
||
= backend->debug_swap.external_ext_size;
|
||
const bfd_size_type external_sym_size
|
||
= backend->debug_swap.external_sym_size;
|
||
void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *))
|
||
= backend->debug_swap.swap_ext_in;
|
||
void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *))
|
||
= backend->debug_swap.swap_sym_in;
|
||
bfd_size_type internal_size;
|
||
ecoff_symbol_type *internal;
|
||
ecoff_symbol_type *internal_ptr;
|
||
char *eraw_src;
|
||
char *eraw_end;
|
||
FDR *fdr_ptr;
|
||
FDR *fdr_end;
|
||
|
||
/* If we've already read in the symbol table, do nothing. */
|
||
if (ecoff_data (abfd)->canonical_symbols != NULL)
|
||
return true;
|
||
|
||
/* Get the symbolic information. */
|
||
if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL,
|
||
&ecoff_data (abfd)->debug_info))
|
||
return false;
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
return true;
|
||
|
||
internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type);
|
||
internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size);
|
||
if (internal == NULL)
|
||
return false;
|
||
|
||
internal_ptr = internal;
|
||
eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext;
|
||
eraw_end = (eraw_src
|
||
+ (ecoff_data (abfd)->debug_info.symbolic_header.iextMax
|
||
* external_ext_size));
|
||
for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++)
|
||
{
|
||
EXTR internal_esym;
|
||
|
||
(*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym);
|
||
internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext
|
||
+ internal_esym.asym.iss);
|
||
if (!ecoff_set_symbol_info (abfd, &internal_esym.asym,
|
||
&internal_ptr->symbol, 1,
|
||
internal_esym.weakext))
|
||
return false;
|
||
/* The alpha uses a negative ifd field for section symbols. */
|
||
if (internal_esym.ifd >= 0)
|
||
internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr
|
||
+ internal_esym.ifd);
|
||
else
|
||
internal_ptr->fdr = NULL;
|
||
internal_ptr->local = false;
|
||
internal_ptr->native = (PTR) eraw_src;
|
||
}
|
||
|
||
/* The local symbols must be accessed via the fdr's, because the
|
||
string and aux indices are relative to the fdr information. */
|
||
fdr_ptr = ecoff_data (abfd)->debug_info.fdr;
|
||
fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax;
|
||
for (; fdr_ptr < fdr_end; fdr_ptr++)
|
||
{
|
||
char *lraw_src;
|
||
char *lraw_end;
|
||
|
||
lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym
|
||
+ fdr_ptr->isymBase * external_sym_size);
|
||
lraw_end = lraw_src + fdr_ptr->csym * external_sym_size;
|
||
for (;
|
||
lraw_src < lraw_end;
|
||
lraw_src += external_sym_size, internal_ptr++)
|
||
{
|
||
SYMR internal_sym;
|
||
|
||
(*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym);
|
||
internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss
|
||
+ fdr_ptr->issBase
|
||
+ internal_sym.iss);
|
||
if (!ecoff_set_symbol_info (abfd, &internal_sym,
|
||
&internal_ptr->symbol, 0, 0))
|
||
return false;
|
||
internal_ptr->fdr = fdr_ptr;
|
||
internal_ptr->local = true;
|
||
internal_ptr->native = (PTR) lraw_src;
|
||
}
|
||
}
|
||
|
||
ecoff_data (abfd)->canonical_symbols = internal;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Return the amount of space needed for the canonical symbols. */
|
||
|
||
long
|
||
_bfd_ecoff_get_symtab_upper_bound (abfd)
|
||
bfd *abfd;
|
||
{
|
||
if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL,
|
||
&ecoff_data (abfd)->debug_info))
|
||
return -1;
|
||
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
return 0;
|
||
|
||
return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *));
|
||
}
|
||
|
||
/* Get the canonical symbols. */
|
||
|
||
long
|
||
_bfd_ecoff_get_symtab (abfd, alocation)
|
||
bfd *abfd;
|
||
asymbol **alocation;
|
||
{
|
||
unsigned int counter = 0;
|
||
ecoff_symbol_type *symbase;
|
||
ecoff_symbol_type **location = (ecoff_symbol_type **) alocation;
|
||
|
||
if (_bfd_ecoff_slurp_symbol_table (abfd) == false)
|
||
return -1;
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
return 0;
|
||
|
||
symbase = ecoff_data (abfd)->canonical_symbols;
|
||
while (counter < bfd_get_symcount (abfd))
|
||
{
|
||
*(location++) = symbase++;
|
||
counter++;
|
||
}
|
||
*location++ = (ecoff_symbol_type *) NULL;
|
||
return bfd_get_symcount (abfd);
|
||
}
|
||
|
||
/* Turn ECOFF type information into a printable string.
|
||
ecoff_emit_aggregate and ecoff_type_to_string are from
|
||
gcc/mips-tdump.c, with swapping added and used_ptr removed. */
|
||
|
||
/* Write aggregate information to a string. */
|
||
|
||
static void
|
||
ecoff_emit_aggregate (abfd, fdr, string, rndx, isym, which)
|
||
bfd *abfd;
|
||
FDR *fdr;
|
||
char *string;
|
||
RNDXR *rndx;
|
||
long isym;
|
||
const char *which;
|
||
{
|
||
const struct ecoff_debug_swap * const debug_swap =
|
||
&ecoff_backend (abfd)->debug_swap;
|
||
struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info;
|
||
unsigned int ifd = rndx->rfd;
|
||
unsigned int indx = rndx->index;
|
||
const char *name;
|
||
|
||
if (ifd == 0xfff)
|
||
ifd = isym;
|
||
|
||
/* An ifd of -1 is an opaque type. An escaped index of 0 is a
|
||
struct return type of a procedure compiled without -g. */
|
||
if (ifd == 0xffffffff
|
||
|| (rndx->rfd == 0xfff && indx == 0))
|
||
name = "<undefined>";
|
||
else if (indx == indexNil)
|
||
name = "<no name>";
|
||
else
|
||
{
|
||
SYMR sym;
|
||
|
||
if (debug_info->external_rfd == NULL)
|
||
fdr = debug_info->fdr + ifd;
|
||
else
|
||
{
|
||
RFDT rfd;
|
||
|
||
(*debug_swap->swap_rfd_in) (abfd,
|
||
((char *) debug_info->external_rfd
|
||
+ ((fdr->rfdBase + ifd)
|
||
* debug_swap->external_rfd_size)),
|
||
&rfd);
|
||
fdr = debug_info->fdr + rfd;
|
||
}
|
||
|
||
indx += fdr->isymBase;
|
||
|
||
(*debug_swap->swap_sym_in) (abfd,
|
||
((char *) debug_info->external_sym
|
||
+ indx * debug_swap->external_sym_size),
|
||
&sym);
|
||
|
||
name = debug_info->ss + fdr->issBase + sym.iss;
|
||
}
|
||
|
||
sprintf (string,
|
||
"%s %s { ifd = %u, index = %lu }",
|
||
which, name, ifd,
|
||
((long) indx
|
||
+ debug_info->symbolic_header.iextMax));
|
||
}
|
||
|
||
/* Convert the type information to string format. */
|
||
|
||
static char *
|
||
ecoff_type_to_string (abfd, fdr, indx)
|
||
bfd *abfd;
|
||
FDR *fdr;
|
||
unsigned int indx;
|
||
{
|
||
union aux_ext *aux_ptr;
|
||
int bigendian;
|
||
AUXU u;
|
||
struct qual {
|
||
unsigned int type;
|
||
int low_bound;
|
||
int high_bound;
|
||
int stride;
|
||
} qualifiers[7];
|
||
unsigned int basic_type;
|
||
int i;
|
||
char buffer1[1024];
|
||
static char buffer2[1024];
|
||
char *p1 = buffer1;
|
||
char *p2 = buffer2;
|
||
RNDXR rndx;
|
||
|
||
aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase;
|
||
bigendian = fdr->fBigendian;
|
||
|
||
for (i = 0; i < 7; i++)
|
||
{
|
||
qualifiers[i].low_bound = 0;
|
||
qualifiers[i].high_bound = 0;
|
||
qualifiers[i].stride = 0;
|
||
}
|
||
|
||
if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == (bfd_vma) -1)
|
||
return "-1 (no type)";
|
||
_bfd_ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti);
|
||
|
||
basic_type = u.ti.bt;
|
||
qualifiers[0].type = u.ti.tq0;
|
||
qualifiers[1].type = u.ti.tq1;
|
||
qualifiers[2].type = u.ti.tq2;
|
||
qualifiers[3].type = u.ti.tq3;
|
||
qualifiers[4].type = u.ti.tq4;
|
||
qualifiers[5].type = u.ti.tq5;
|
||
qualifiers[6].type = tqNil;
|
||
|
||
/*
|
||
* Go get the basic type.
|
||
*/
|
||
switch (basic_type)
|
||
{
|
||
case btNil: /* undefined */
|
||
strcpy (p1, "nil");
|
||
break;
|
||
|
||
case btAdr: /* address - integer same size as pointer */
|
||
strcpy (p1, "address");
|
||
break;
|
||
|
||
case btChar: /* character */
|
||
strcpy (p1, "char");
|
||
break;
|
||
|
||
case btUChar: /* unsigned character */
|
||
strcpy (p1, "unsigned char");
|
||
break;
|
||
|
||
case btShort: /* short */
|
||
strcpy (p1, "short");
|
||
break;
|
||
|
||
case btUShort: /* unsigned short */
|
||
strcpy (p1, "unsigned short");
|
||
break;
|
||
|
||
case btInt: /* int */
|
||
strcpy (p1, "int");
|
||
break;
|
||
|
||
case btUInt: /* unsigned int */
|
||
strcpy (p1, "unsigned int");
|
||
break;
|
||
|
||
case btLong: /* long */
|
||
strcpy (p1, "long");
|
||
break;
|
||
|
||
case btULong: /* unsigned long */
|
||
strcpy (p1, "unsigned long");
|
||
break;
|
||
|
||
case btFloat: /* float (real) */
|
||
strcpy (p1, "float");
|
||
break;
|
||
|
||
case btDouble: /* Double (real) */
|
||
strcpy (p1, "double");
|
||
break;
|
||
|
||
/* Structures add 1-2 aux words:
|
||
1st word is [ST_RFDESCAPE, offset] pointer to struct def;
|
||
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
|
||
|
||
case btStruct: /* Structure (Record) */
|
||
_bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
|
||
ecoff_emit_aggregate (abfd, fdr, p1, &rndx,
|
||
(long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
|
||
"struct");
|
||
indx++; /* skip aux words */
|
||
break;
|
||
|
||
/* Unions add 1-2 aux words:
|
||
1st word is [ST_RFDESCAPE, offset] pointer to union def;
|
||
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
|
||
|
||
case btUnion: /* Union */
|
||
_bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
|
||
ecoff_emit_aggregate (abfd, fdr, p1, &rndx,
|
||
(long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
|
||
"union");
|
||
indx++; /* skip aux words */
|
||
break;
|
||
|
||
/* Enumerations add 1-2 aux words:
|
||
1st word is [ST_RFDESCAPE, offset] pointer to enum def;
|
||
2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
|
||
|
||
case btEnum: /* Enumeration */
|
||
_bfd_ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
|
||
ecoff_emit_aggregate (abfd, fdr, p1, &rndx,
|
||
(long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
|
||
"enum");
|
||
indx++; /* skip aux words */
|
||
break;
|
||
|
||
case btTypedef: /* defined via a typedef, isymRef points */
|
||
strcpy (p1, "typedef");
|
||
break;
|
||
|
||
case btRange: /* subrange of int */
|
||
strcpy (p1, "subrange");
|
||
break;
|
||
|
||
case btSet: /* pascal sets */
|
||
strcpy (p1, "set");
|
||
break;
|
||
|
||
case btComplex: /* fortran complex */
|
||
strcpy (p1, "complex");
|
||
break;
|
||
|
||
case btDComplex: /* fortran double complex */
|
||
strcpy (p1, "double complex");
|
||
break;
|
||
|
||
case btIndirect: /* forward or unnamed typedef */
|
||
strcpy (p1, "forward/unamed typedef");
|
||
break;
|
||
|
||
case btFixedDec: /* Fixed Decimal */
|
||
strcpy (p1, "fixed decimal");
|
||
break;
|
||
|
||
case btFloatDec: /* Float Decimal */
|
||
strcpy (p1, "float decimal");
|
||
break;
|
||
|
||
case btString: /* Varying Length Character String */
|
||
strcpy (p1, "string");
|
||
break;
|
||
|
||
case btBit: /* Aligned Bit String */
|
||
strcpy (p1, "bit");
|
||
break;
|
||
|
||
case btPicture: /* Picture */
|
||
strcpy (p1, "picture");
|
||
break;
|
||
|
||
case btVoid: /* Void */
|
||
strcpy (p1, "void");
|
||
break;
|
||
|
||
default:
|
||
sprintf (p1, _("Unknown basic type %d"), (int) basic_type);
|
||
break;
|
||
}
|
||
|
||
p1 += strlen (buffer1);
|
||
|
||
/*
|
||
* If this is a bitfield, get the bitsize.
|
||
*/
|
||
if (u.ti.fBitfield)
|
||
{
|
||
int bitsize;
|
||
|
||
bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]);
|
||
sprintf (p1, " : %d", bitsize);
|
||
p1 += strlen (buffer1);
|
||
}
|
||
|
||
|
||
/*
|
||
* Deal with any qualifiers.
|
||
*/
|
||
if (qualifiers[0].type != tqNil)
|
||
{
|
||
/*
|
||
* Snarf up any array bounds in the correct order. Arrays
|
||
* store 5 successive words in the aux. table:
|
||
* word 0 RNDXR to type of the bounds (ie, int)
|
||
* word 1 Current file descriptor index
|
||
* word 2 low bound
|
||
* word 3 high bound (or -1 if [])
|
||
* word 4 stride size in bits
|
||
*/
|
||
for (i = 0; i < 7; i++)
|
||
{
|
||
if (qualifiers[i].type == tqArray)
|
||
{
|
||
qualifiers[i].low_bound =
|
||
AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]);
|
||
qualifiers[i].high_bound =
|
||
AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]);
|
||
qualifiers[i].stride =
|
||
AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]);
|
||
indx += 5;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Now print out the qualifiers.
|
||
*/
|
||
for (i = 0; i < 6; i++)
|
||
{
|
||
switch (qualifiers[i].type)
|
||
{
|
||
case tqNil:
|
||
case tqMax:
|
||
break;
|
||
|
||
case tqPtr:
|
||
strcpy (p2, "ptr to ");
|
||
p2 += sizeof ("ptr to ")-1;
|
||
break;
|
||
|
||
case tqVol:
|
||
strcpy (p2, "volatile ");
|
||
p2 += sizeof ("volatile ")-1;
|
||
break;
|
||
|
||
case tqFar:
|
||
strcpy (p2, "far ");
|
||
p2 += sizeof ("far ")-1;
|
||
break;
|
||
|
||
case tqProc:
|
||
strcpy (p2, "func. ret. ");
|
||
p2 += sizeof ("func. ret. ");
|
||
break;
|
||
|
||
case tqArray:
|
||
{
|
||
int first_array = i;
|
||
int j;
|
||
|
||
/* Print array bounds reversed (ie, in the order the C
|
||
programmer writes them). C is such a fun language.... */
|
||
|
||
while (i < 5 && qualifiers[i+1].type == tqArray)
|
||
i++;
|
||
|
||
for (j = i; j >= first_array; j--)
|
||
{
|
||
strcpy (p2, "array [");
|
||
p2 += sizeof ("array [")-1;
|
||
if (qualifiers[j].low_bound != 0)
|
||
sprintf (p2,
|
||
"%ld:%ld {%ld bits}",
|
||
(long) qualifiers[j].low_bound,
|
||
(long) qualifiers[j].high_bound,
|
||
(long) qualifiers[j].stride);
|
||
|
||
else if (qualifiers[j].high_bound != -1)
|
||
sprintf (p2,
|
||
"%ld {%ld bits}",
|
||
(long) (qualifiers[j].high_bound + 1),
|
||
(long) (qualifiers[j].stride));
|
||
|
||
else
|
||
sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride));
|
||
|
||
p2 += strlen (p2);
|
||
strcpy (p2, "] of ");
|
||
p2 += sizeof ("] of ")-1;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
strcpy (p2, buffer1);
|
||
return buffer2;
|
||
}
|
||
|
||
/* Return information about ECOFF symbol SYMBOL in RET. */
|
||
|
||
/*ARGSUSED*/
|
||
void
|
||
_bfd_ecoff_get_symbol_info (abfd, symbol, ret)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
asymbol *symbol;
|
||
symbol_info *ret;
|
||
{
|
||
bfd_symbol_info (symbol, ret);
|
||
}
|
||
|
||
/* Return whether this is a local label. */
|
||
|
||
/*ARGSUSED*/
|
||
boolean
|
||
_bfd_ecoff_bfd_is_local_label_name (abfd, name)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
const char *name;
|
||
{
|
||
return name[0] == '$';
|
||
}
|
||
|
||
/* Print information about an ECOFF symbol. */
|
||
|
||
void
|
||
_bfd_ecoff_print_symbol (abfd, filep, symbol, how)
|
||
bfd *abfd;
|
||
PTR filep;
|
||
asymbol *symbol;
|
||
bfd_print_symbol_type how;
|
||
{
|
||
const struct ecoff_debug_swap * const debug_swap
|
||
= &ecoff_backend (abfd)->debug_swap;
|
||
FILE *file = (FILE *)filep;
|
||
|
||
switch (how)
|
||
{
|
||
case bfd_print_symbol_name:
|
||
fprintf (file, "%s", symbol->name);
|
||
break;
|
||
case bfd_print_symbol_more:
|
||
if (ecoffsymbol (symbol)->local)
|
||
{
|
||
SYMR ecoff_sym;
|
||
|
||
(*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native,
|
||
&ecoff_sym);
|
||
fprintf (file, "ecoff local ");
|
||
fprintf_vma (file, (bfd_vma) ecoff_sym.value);
|
||
fprintf (file, " %x %x", (unsigned) ecoff_sym.st,
|
||
(unsigned) ecoff_sym.sc);
|
||
}
|
||
else
|
||
{
|
||
EXTR ecoff_ext;
|
||
|
||
(*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native,
|
||
&ecoff_ext);
|
||
fprintf (file, "ecoff extern ");
|
||
fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value);
|
||
fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st,
|
||
(unsigned) ecoff_ext.asym.sc);
|
||
}
|
||
break;
|
||
case bfd_print_symbol_all:
|
||
/* Print out the symbols in a reasonable way */
|
||
{
|
||
char type;
|
||
int pos;
|
||
EXTR ecoff_ext;
|
||
char jmptbl;
|
||
char cobol_main;
|
||
char weakext;
|
||
|
||
if (ecoffsymbol (symbol)->local)
|
||
{
|
||
(*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native,
|
||
&ecoff_ext.asym);
|
||
type = 'l';
|
||
pos = ((((char *) ecoffsymbol (symbol)->native
|
||
- (char *) ecoff_data (abfd)->debug_info.external_sym)
|
||
/ debug_swap->external_sym_size)
|
||
+ ecoff_data (abfd)->debug_info.symbolic_header.iextMax);
|
||
jmptbl = ' ';
|
||
cobol_main = ' ';
|
||
weakext = ' ';
|
||
}
|
||
else
|
||
{
|
||
(*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native,
|
||
&ecoff_ext);
|
||
type = 'e';
|
||
pos = (((char *) ecoffsymbol (symbol)->native
|
||
- (char *) ecoff_data (abfd)->debug_info.external_ext)
|
||
/ debug_swap->external_ext_size);
|
||
jmptbl = ecoff_ext.jmptbl ? 'j' : ' ';
|
||
cobol_main = ecoff_ext.cobol_main ? 'c' : ' ';
|
||
weakext = ecoff_ext.weakext ? 'w' : ' ';
|
||
}
|
||
|
||
fprintf (file, "[%3d] %c ",
|
||
pos, type);
|
||
fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value);
|
||
fprintf (file, " st %x sc %x indx %x %c%c%c %s",
|
||
(unsigned) ecoff_ext.asym.st,
|
||
(unsigned) ecoff_ext.asym.sc,
|
||
(unsigned) ecoff_ext.asym.index,
|
||
jmptbl, cobol_main, weakext,
|
||
symbol->name);
|
||
|
||
if (ecoffsymbol (symbol)->fdr != NULL
|
||
&& ecoff_ext.asym.index != indexNil)
|
||
{
|
||
FDR *fdr;
|
||
unsigned int indx;
|
||
int bigendian;
|
||
bfd_size_type sym_base;
|
||
union aux_ext *aux_base;
|
||
|
||
fdr = ecoffsymbol (symbol)->fdr;
|
||
indx = ecoff_ext.asym.index;
|
||
|
||
/* sym_base is used to map the fdr relative indices which
|
||
appear in the file to the position number which we are
|
||
using. */
|
||
sym_base = fdr->isymBase;
|
||
if (ecoffsymbol (symbol)->local)
|
||
sym_base +=
|
||
ecoff_data (abfd)->debug_info.symbolic_header.iextMax;
|
||
|
||
/* aux_base is the start of the aux entries for this file;
|
||
asym.index is an offset from this. */
|
||
aux_base = (ecoff_data (abfd)->debug_info.external_aux
|
||
+ fdr->iauxBase);
|
||
|
||
/* The aux entries are stored in host byte order; the
|
||
order is indicated by a bit in the fdr. */
|
||
bigendian = fdr->fBigendian;
|
||
|
||
/* This switch is basically from gcc/mips-tdump.c */
|
||
switch (ecoff_ext.asym.st)
|
||
{
|
||
case stNil:
|
||
case stLabel:
|
||
break;
|
||
|
||
case stFile:
|
||
case stBlock:
|
||
fprintf (file, _("\n End+1 symbol: %ld"),
|
||
(long) (indx + sym_base));
|
||
break;
|
||
|
||
case stEnd:
|
||
if (ecoff_ext.asym.sc == scText
|
||
|| ecoff_ext.asym.sc == scInfo)
|
||
fprintf (file, _("\n First symbol: %ld"),
|
||
(long) (indx + sym_base));
|
||
else
|
||
fprintf (file, _("\n First symbol: %ld"),
|
||
((long)
|
||
(AUX_GET_ISYM (bigendian,
|
||
&aux_base[ecoff_ext.asym.index])
|
||
+ sym_base)));
|
||
break;
|
||
|
||
case stProc:
|
||
case stStaticProc:
|
||
if (ECOFF_IS_STAB (&ecoff_ext.asym))
|
||
;
|
||
else if (ecoffsymbol (symbol)->local)
|
||
fprintf (file, _("\n End+1 symbol: %-7ld Type: %s"),
|
||
((long)
|
||
(AUX_GET_ISYM (bigendian,
|
||
&aux_base[ecoff_ext.asym.index])
|
||
+ sym_base)),
|
||
ecoff_type_to_string (abfd, fdr, indx + 1));
|
||
else
|
||
fprintf (file, _("\n Local symbol: %ld"),
|
||
((long) indx
|
||
+ (long) sym_base
|
||
+ (ecoff_data (abfd)
|
||
->debug_info.symbolic_header.iextMax)));
|
||
break;
|
||
|
||
case stStruct:
|
||
fprintf (file, _("\n struct; End+1 symbol: %ld"),
|
||
(long) (indx + sym_base));
|
||
break;
|
||
|
||
case stUnion:
|
||
fprintf (file, _("\n union; End+1 symbol: %ld"),
|
||
(long) (indx + sym_base));
|
||
break;
|
||
|
||
case stEnum:
|
||
fprintf (file, _("\n enum; End+1 symbol: %ld"),
|
||
(long) (indx + sym_base));
|
||
break;
|
||
|
||
default:
|
||
if (! ECOFF_IS_STAB (&ecoff_ext.asym))
|
||
fprintf (file, _("\n Type: %s"),
|
||
ecoff_type_to_string (abfd, fdr, indx));
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Read in the relocs for a section. */
|
||
|
||
static boolean
|
||
ecoff_slurp_reloc_table (abfd, section, symbols)
|
||
bfd *abfd;
|
||
asection *section;
|
||
asymbol **symbols;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
arelent *internal_relocs;
|
||
bfd_size_type external_reloc_size;
|
||
bfd_size_type external_relocs_size;
|
||
char *external_relocs;
|
||
arelent *rptr;
|
||
unsigned int i;
|
||
|
||
if (section->relocation != (arelent *) NULL
|
||
|| section->reloc_count == 0
|
||
|| (section->flags & SEC_CONSTRUCTOR) != 0)
|
||
return true;
|
||
|
||
if (_bfd_ecoff_slurp_symbol_table (abfd) == false)
|
||
return false;
|
||
|
||
internal_relocs = (arelent *) bfd_alloc (abfd,
|
||
(sizeof (arelent)
|
||
* section->reloc_count));
|
||
external_reloc_size = backend->external_reloc_size;
|
||
external_relocs_size = external_reloc_size * section->reloc_count;
|
||
external_relocs = (char *) bfd_alloc (abfd, external_relocs_size);
|
||
if (internal_relocs == (arelent *) NULL
|
||
|| external_relocs == (char *) NULL)
|
||
return false;
|
||
if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0)
|
||
return false;
|
||
if (bfd_read (external_relocs, 1, external_relocs_size, abfd)
|
||
!= external_relocs_size)
|
||
return false;
|
||
|
||
for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++)
|
||
{
|
||
struct internal_reloc intern;
|
||
|
||
(*backend->swap_reloc_in) (abfd,
|
||
external_relocs + i * external_reloc_size,
|
||
&intern);
|
||
|
||
if (intern.r_extern)
|
||
{
|
||
/* r_symndx is an index into the external symbols. */
|
||
BFD_ASSERT (intern.r_symndx >= 0
|
||
&& (intern.r_symndx
|
||
< (ecoff_data (abfd)
|
||
->debug_info.symbolic_header.iextMax)));
|
||
rptr->sym_ptr_ptr = symbols + intern.r_symndx;
|
||
rptr->addend = 0;
|
||
}
|
||
else if (intern.r_symndx == RELOC_SECTION_NONE
|
||
|| intern.r_symndx == RELOC_SECTION_ABS)
|
||
{
|
||
rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
rptr->addend = 0;
|
||
}
|
||
else
|
||
{
|
||
CONST char *sec_name;
|
||
asection *sec;
|
||
|
||
/* r_symndx is a section key. */
|
||
switch (intern.r_symndx)
|
||
{
|
||
case RELOC_SECTION_TEXT: sec_name = ".text"; break;
|
||
case RELOC_SECTION_RDATA: sec_name = ".rdata"; break;
|
||
case RELOC_SECTION_DATA: sec_name = ".data"; break;
|
||
case RELOC_SECTION_SDATA: sec_name = ".sdata"; break;
|
||
case RELOC_SECTION_SBSS: sec_name = ".sbss"; break;
|
||
case RELOC_SECTION_BSS: sec_name = ".bss"; break;
|
||
case RELOC_SECTION_INIT: sec_name = ".init"; break;
|
||
case RELOC_SECTION_LIT8: sec_name = ".lit8"; break;
|
||
case RELOC_SECTION_LIT4: sec_name = ".lit4"; break;
|
||
case RELOC_SECTION_XDATA: sec_name = ".xdata"; break;
|
||
case RELOC_SECTION_PDATA: sec_name = ".pdata"; break;
|
||
case RELOC_SECTION_FINI: sec_name = ".fini"; break;
|
||
case RELOC_SECTION_LITA: sec_name = ".lita"; break;
|
||
case RELOC_SECTION_RCONST: sec_name = ".rconst"; break;
|
||
default: abort ();
|
||
}
|
||
|
||
sec = bfd_get_section_by_name (abfd, sec_name);
|
||
if (sec == (asection *) NULL)
|
||
abort ();
|
||
rptr->sym_ptr_ptr = sec->symbol_ptr_ptr;
|
||
|
||
rptr->addend = - bfd_get_section_vma (abfd, sec);
|
||
}
|
||
|
||
rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section);
|
||
|
||
/* Let the backend select the howto field and do any other
|
||
required processing. */
|
||
(*backend->adjust_reloc_in) (abfd, &intern, rptr);
|
||
}
|
||
|
||
bfd_release (abfd, external_relocs);
|
||
|
||
section->relocation = internal_relocs;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Get a canonical list of relocs. */
|
||
|
||
long
|
||
_bfd_ecoff_canonicalize_reloc (abfd, section, relptr, symbols)
|
||
bfd *abfd;
|
||
asection *section;
|
||
arelent **relptr;
|
||
asymbol **symbols;
|
||
{
|
||
unsigned int count;
|
||
|
||
if (section->flags & SEC_CONSTRUCTOR)
|
||
{
|
||
arelent_chain *chain;
|
||
|
||
/* This section has relocs made up by us, not the file, so take
|
||
them out of their chain and place them into the data area
|
||
provided. */
|
||
for (count = 0, chain = section->constructor_chain;
|
||
count < section->reloc_count;
|
||
count++, chain = chain->next)
|
||
*relptr++ = &chain->relent;
|
||
}
|
||
else
|
||
{
|
||
arelent *tblptr;
|
||
|
||
if (ecoff_slurp_reloc_table (abfd, section, symbols) == false)
|
||
return -1;
|
||
|
||
tblptr = section->relocation;
|
||
|
||
for (count = 0; count < section->reloc_count; count++)
|
||
*relptr++ = tblptr++;
|
||
}
|
||
|
||
*relptr = (arelent *) NULL;
|
||
|
||
return section->reloc_count;
|
||
}
|
||
|
||
/* Provided a BFD, a section and an offset into the section, calculate
|
||
and return the name of the source file and the line nearest to the
|
||
wanted location. */
|
||
|
||
/*ARGSUSED*/
|
||
boolean
|
||
_bfd_ecoff_find_nearest_line (abfd, section, ignore_symbols, offset,
|
||
filename_ptr, functionname_ptr, retline_ptr)
|
||
bfd *abfd;
|
||
asection *section;
|
||
asymbol **ignore_symbols ATTRIBUTE_UNUSED;
|
||
bfd_vma offset;
|
||
CONST char **filename_ptr;
|
||
CONST char **functionname_ptr;
|
||
unsigned int *retline_ptr;
|
||
{
|
||
const struct ecoff_debug_swap * const debug_swap
|
||
= &ecoff_backend (abfd)->debug_swap;
|
||
struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info;
|
||
struct ecoff_find_line *line_info;
|
||
|
||
/* Make sure we have the FDR's. */
|
||
if (! _bfd_ecoff_slurp_symbolic_info (abfd, (asection *) NULL, debug_info)
|
||
|| bfd_get_symcount (abfd) == 0)
|
||
return false;
|
||
|
||
if (ecoff_data (abfd)->find_line_info == NULL)
|
||
{
|
||
ecoff_data (abfd)->find_line_info =
|
||
((struct ecoff_find_line *)
|
||
bfd_zalloc (abfd, sizeof (struct ecoff_find_line)));
|
||
if (ecoff_data (abfd)->find_line_info == NULL)
|
||
return false;
|
||
}
|
||
line_info = ecoff_data (abfd)->find_line_info;
|
||
|
||
return _bfd_ecoff_locate_line (abfd, section, offset, debug_info,
|
||
debug_swap, line_info, filename_ptr,
|
||
functionname_ptr, retline_ptr);
|
||
}
|
||
|
||
/* Copy private BFD data. This is called by objcopy and strip. We
|
||
use it to copy the ECOFF debugging information from one BFD to the
|
||
other. It would be theoretically possible to represent the ECOFF
|
||
debugging information in the symbol table. However, it would be a
|
||
lot of work, and there would be little gain (gas, gdb, and ld
|
||
already access the ECOFF debugging information via the
|
||
ecoff_debug_info structure, and that structure would have to be
|
||
retained in order to support ECOFF debugging in MIPS ELF).
|
||
|
||
The debugging information for the ECOFF external symbols comes from
|
||
the symbol table, so this function only handles the other debugging
|
||
information. */
|
||
|
||
boolean
|
||
_bfd_ecoff_bfd_copy_private_bfd_data (ibfd, obfd)
|
||
bfd *ibfd;
|
||
bfd *obfd;
|
||
{
|
||
struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info;
|
||
struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info;
|
||
register int i;
|
||
asymbol **sym_ptr_ptr;
|
||
size_t c;
|
||
boolean local;
|
||
|
||
/* We only want to copy information over if both BFD's use ECOFF
|
||
format. */
|
||
if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour
|
||
|| bfd_get_flavour (obfd) != bfd_target_ecoff_flavour)
|
||
return true;
|
||
|
||
/* Copy the GP value and the register masks. */
|
||
ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp;
|
||
ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask;
|
||
ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask;
|
||
for (i = 0; i < 3; i++)
|
||
ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i];
|
||
|
||
/* Copy the version stamp. */
|
||
oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp;
|
||
|
||
/* If there are no symbols, don't copy any debugging information. */
|
||
c = bfd_get_symcount (obfd);
|
||
sym_ptr_ptr = bfd_get_outsymbols (obfd);
|
||
if (c == 0 || sym_ptr_ptr == (asymbol **) NULL)
|
||
return true;
|
||
|
||
/* See if there are any local symbols. */
|
||
local = false;
|
||
for (; c > 0; c--, sym_ptr_ptr++)
|
||
{
|
||
if (ecoffsymbol (*sym_ptr_ptr)->local)
|
||
{
|
||
local = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (local)
|
||
{
|
||
/* There are some local symbols. We just bring over all the
|
||
debugging information. FIXME: This is not quite the right
|
||
thing to do. If the user has asked us to discard all
|
||
debugging information, then we are probably going to wind up
|
||
keeping it because there will probably be some local symbol
|
||
which objcopy did not discard. We should actually break
|
||
apart the debugging information and only keep that which
|
||
applies to the symbols we want to keep. */
|
||
oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax;
|
||
oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine;
|
||
oinfo->line = iinfo->line;
|
||
|
||
oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax;
|
||
oinfo->external_dnr = iinfo->external_dnr;
|
||
|
||
oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax;
|
||
oinfo->external_pdr = iinfo->external_pdr;
|
||
|
||
oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax;
|
||
oinfo->external_sym = iinfo->external_sym;
|
||
|
||
oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax;
|
||
oinfo->external_opt = iinfo->external_opt;
|
||
|
||
oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax;
|
||
oinfo->external_aux = iinfo->external_aux;
|
||
|
||
oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax;
|
||
oinfo->ss = iinfo->ss;
|
||
|
||
oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax;
|
||
oinfo->external_fdr = iinfo->external_fdr;
|
||
|
||
oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd;
|
||
oinfo->external_rfd = iinfo->external_rfd;
|
||
}
|
||
else
|
||
{
|
||
/* We are discarding all the local symbol information. Look
|
||
through the external symbols and remove all references to FDR
|
||
or aux information. */
|
||
c = bfd_get_symcount (obfd);
|
||
sym_ptr_ptr = bfd_get_outsymbols (obfd);
|
||
for (; c > 0; c--, sym_ptr_ptr++)
|
||
{
|
||
EXTR esym;
|
||
|
||
(*(ecoff_backend (obfd)->debug_swap.swap_ext_in))
|
||
(obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym);
|
||
esym.ifd = ifdNil;
|
||
esym.asym.index = indexNil;
|
||
(*(ecoff_backend (obfd)->debug_swap.swap_ext_out))
|
||
(obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native);
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Set the architecture. The supported architecture is stored in the
|
||
backend pointer. We always set the architecture anyhow, since many
|
||
callers ignore the return value. */
|
||
|
||
boolean
|
||
_bfd_ecoff_set_arch_mach (abfd, arch, machine)
|
||
bfd *abfd;
|
||
enum bfd_architecture arch;
|
||
unsigned long machine;
|
||
{
|
||
bfd_default_set_arch_mach (abfd, arch, machine);
|
||
return arch == ecoff_backend (abfd)->arch;
|
||
}
|
||
|
||
/* Get the size of the section headers. */
|
||
|
||
/*ARGSUSED*/
|
||
int
|
||
_bfd_ecoff_sizeof_headers (abfd, reloc)
|
||
bfd *abfd;
|
||
boolean reloc ATTRIBUTE_UNUSED;
|
||
{
|
||
asection *current;
|
||
int c;
|
||
int ret;
|
||
|
||
c = 0;
|
||
for (current = abfd->sections;
|
||
current != (asection *)NULL;
|
||
current = current->next)
|
||
++c;
|
||
|
||
ret = (bfd_coff_filhsz (abfd)
|
||
+ bfd_coff_aoutsz (abfd)
|
||
+ c * bfd_coff_scnhsz (abfd));
|
||
return BFD_ALIGN (ret, 16);
|
||
}
|
||
|
||
/* Get the contents of a section. */
|
||
|
||
boolean
|
||
_bfd_ecoff_get_section_contents (abfd, section, location, offset, count)
|
||
bfd *abfd;
|
||
asection *section;
|
||
PTR location;
|
||
file_ptr offset;
|
||
bfd_size_type count;
|
||
{
|
||
return _bfd_generic_get_section_contents (abfd, section, location,
|
||
offset, count);
|
||
}
|
||
|
||
/* Sort sections by VMA, but put SEC_ALLOC sections first. This is
|
||
called via qsort. */
|
||
|
||
static int
|
||
ecoff_sort_hdrs (arg1, arg2)
|
||
const PTR arg1;
|
||
const PTR arg2;
|
||
{
|
||
const asection *hdr1 = *(const asection **) arg1;
|
||
const asection *hdr2 = *(const asection **) arg2;
|
||
|
||
if ((hdr1->flags & SEC_ALLOC) != 0)
|
||
{
|
||
if ((hdr2->flags & SEC_ALLOC) == 0)
|
||
return -1;
|
||
}
|
||
else
|
||
{
|
||
if ((hdr2->flags & SEC_ALLOC) != 0)
|
||
return 1;
|
||
}
|
||
if (hdr1->vma < hdr2->vma)
|
||
return -1;
|
||
else if (hdr1->vma > hdr2->vma)
|
||
return 1;
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/* Calculate the file position for each section, and set
|
||
reloc_filepos. */
|
||
|
||
static boolean
|
||
ecoff_compute_section_file_positions (abfd)
|
||
bfd *abfd;
|
||
{
|
||
file_ptr sofar, file_sofar;
|
||
asection **sorted_hdrs;
|
||
asection *current;
|
||
unsigned int i;
|
||
file_ptr old_sofar;
|
||
boolean rdata_in_text;
|
||
boolean first_data, first_nonalloc;
|
||
const bfd_vma round = ecoff_backend (abfd)->round;
|
||
|
||
sofar = _bfd_ecoff_sizeof_headers (abfd, false);
|
||
file_sofar = sofar;
|
||
|
||
/* Sort the sections by VMA. */
|
||
sorted_hdrs = (asection **) bfd_malloc (abfd->section_count
|
||
* sizeof (asection *));
|
||
if (sorted_hdrs == NULL)
|
||
return false;
|
||
for (current = abfd->sections, i = 0;
|
||
current != NULL;
|
||
current = current->next, i++)
|
||
sorted_hdrs[i] = current;
|
||
BFD_ASSERT (i == abfd->section_count);
|
||
|
||
qsort (sorted_hdrs, abfd->section_count, sizeof (asection *),
|
||
ecoff_sort_hdrs);
|
||
|
||
/* Some versions of the OSF linker put the .rdata section in the
|
||
text segment, and some do not. */
|
||
rdata_in_text = ecoff_backend (abfd)->rdata_in_text;
|
||
if (rdata_in_text)
|
||
{
|
||
for (i = 0; i < abfd->section_count; i++)
|
||
{
|
||
current = sorted_hdrs[i];
|
||
if (strcmp (current->name, _RDATA) == 0)
|
||
break;
|
||
if ((current->flags & SEC_CODE) == 0
|
||
&& strcmp (current->name, _PDATA) != 0
|
||
&& strcmp (current->name, _RCONST) != 0)
|
||
{
|
||
rdata_in_text = false;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
ecoff_data (abfd)->rdata_in_text = rdata_in_text;
|
||
|
||
first_data = true;
|
||
first_nonalloc = true;
|
||
for (i = 0; i < abfd->section_count; i++)
|
||
{
|
||
unsigned int alignment_power;
|
||
|
||
current = sorted_hdrs[i];
|
||
|
||
/* For the Alpha ECOFF .pdata section the lnnoptr field is
|
||
supposed to indicate the number of .pdata entries that are
|
||
really in the section. Each entry is 8 bytes. We store this
|
||
away in line_filepos before increasing the section size. */
|
||
if (strcmp (current->name, _PDATA) == 0)
|
||
current->line_filepos = current->_raw_size / 8;
|
||
|
||
alignment_power = current->alignment_power;
|
||
|
||
/* On Ultrix, the data sections in an executable file must be
|
||
aligned to a page boundary within the file. This does not
|
||
affect the section size, though. FIXME: Does this work for
|
||
other platforms? It requires some modification for the
|
||
Alpha, because .rdata on the Alpha goes with the text, not
|
||
the data. */
|
||
if ((abfd->flags & EXEC_P) != 0
|
||
&& (abfd->flags & D_PAGED) != 0
|
||
&& ! first_data
|
||
&& (current->flags & SEC_CODE) == 0
|
||
&& (! rdata_in_text
|
||
|| strcmp (current->name, _RDATA) != 0)
|
||
&& strcmp (current->name, _PDATA) != 0
|
||
&& strcmp (current->name, _RCONST) != 0)
|
||
{
|
||
sofar = (sofar + round - 1) &~ (round - 1);
|
||
file_sofar = (file_sofar + round - 1) &~ (round - 1);
|
||
first_data = false;
|
||
}
|
||
else if (strcmp (current->name, _LIB) == 0)
|
||
{
|
||
/* On Irix 4, the location of contents of the .lib section
|
||
from a shared library section is also rounded up to a
|
||
page boundary. */
|
||
|
||
sofar = (sofar + round - 1) &~ (round - 1);
|
||
file_sofar = (file_sofar + round - 1) &~ (round - 1);
|
||
}
|
||
else if (first_nonalloc
|
||
&& (current->flags & SEC_ALLOC) == 0
|
||
&& (abfd->flags & D_PAGED) != 0)
|
||
{
|
||
/* Skip up to the next page for an unallocated section, such
|
||
as the .comment section on the Alpha. This leaves room
|
||
for the .bss section. */
|
||
first_nonalloc = false;
|
||
sofar = (sofar + round - 1) &~ (round - 1);
|
||
file_sofar = (file_sofar + round - 1) &~ (round - 1);
|
||
}
|
||
|
||
/* Align the sections in the file to the same boundary on
|
||
which they are aligned in virtual memory. */
|
||
sofar = BFD_ALIGN (sofar, 1 << alignment_power);
|
||
if ((current->flags & SEC_HAS_CONTENTS) != 0)
|
||
file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power);
|
||
|
||
if ((abfd->flags & D_PAGED) != 0
|
||
&& (current->flags & SEC_ALLOC) != 0)
|
||
{
|
||
sofar += (current->vma - sofar) % round;
|
||
if ((current->flags & SEC_HAS_CONTENTS) != 0)
|
||
file_sofar += (current->vma - file_sofar) % round;
|
||
}
|
||
|
||
if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0)
|
||
current->filepos = file_sofar;
|
||
|
||
sofar += current->_raw_size;
|
||
if ((current->flags & SEC_HAS_CONTENTS) != 0)
|
||
file_sofar += current->_raw_size;
|
||
|
||
/* make sure that this section is of the right size too */
|
||
old_sofar = sofar;
|
||
sofar = BFD_ALIGN (sofar, 1 << alignment_power);
|
||
if ((current->flags & SEC_HAS_CONTENTS) != 0)
|
||
file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power);
|
||
current->_raw_size += sofar - old_sofar;
|
||
}
|
||
|
||
free (sorted_hdrs);
|
||
sorted_hdrs = NULL;
|
||
|
||
ecoff_data (abfd)->reloc_filepos = file_sofar;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Determine the location of the relocs for all the sections in the
|
||
output file, as well as the location of the symbolic debugging
|
||
information. */
|
||
|
||
static bfd_size_type
|
||
ecoff_compute_reloc_file_positions (abfd)
|
||
bfd *abfd;
|
||
{
|
||
const bfd_size_type external_reloc_size =
|
||
ecoff_backend (abfd)->external_reloc_size;
|
||
file_ptr reloc_base;
|
||
bfd_size_type reloc_size;
|
||
asection *current;
|
||
file_ptr sym_base;
|
||
|
||
if (! abfd->output_has_begun)
|
||
{
|
||
if (! ecoff_compute_section_file_positions (abfd))
|
||
abort ();
|
||
abfd->output_has_begun = true;
|
||
}
|
||
|
||
reloc_base = ecoff_data (abfd)->reloc_filepos;
|
||
|
||
reloc_size = 0;
|
||
for (current = abfd->sections;
|
||
current != (asection *)NULL;
|
||
current = current->next)
|
||
{
|
||
if (current->reloc_count == 0)
|
||
current->rel_filepos = 0;
|
||
else
|
||
{
|
||
bfd_size_type relsize;
|
||
|
||
current->rel_filepos = reloc_base;
|
||
relsize = current->reloc_count * external_reloc_size;
|
||
reloc_size += relsize;
|
||
reloc_base += relsize;
|
||
}
|
||
}
|
||
|
||
sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size;
|
||
|
||
/* At least on Ultrix, the symbol table of an executable file must
|
||
be aligned to a page boundary. FIXME: Is this true on other
|
||
platforms? */
|
||
if ((abfd->flags & EXEC_P) != 0
|
||
&& (abfd->flags & D_PAGED) != 0)
|
||
sym_base = ((sym_base + ecoff_backend (abfd)->round - 1)
|
||
&~ (ecoff_backend (abfd)->round - 1));
|
||
|
||
ecoff_data (abfd)->sym_filepos = sym_base;
|
||
|
||
return reloc_size;
|
||
}
|
||
|
||
/* Set the contents of a section. */
|
||
|
||
boolean
|
||
_bfd_ecoff_set_section_contents (abfd, section, location, offset, count)
|
||
bfd *abfd;
|
||
asection *section;
|
||
PTR location;
|
||
file_ptr offset;
|
||
bfd_size_type count;
|
||
{
|
||
/* This must be done first, because bfd_set_section_contents is
|
||
going to set output_has_begun to true. */
|
||
if (abfd->output_has_begun == false)
|
||
{
|
||
if (! ecoff_compute_section_file_positions (abfd))
|
||
return false;
|
||
}
|
||
|
||
/* Handle the .lib section specially so that Irix 4 shared libraries
|
||
work out. See coff_set_section_contents in coffcode.h. */
|
||
if (strcmp (section->name, _LIB) == 0)
|
||
{
|
||
bfd_byte *rec, *recend;
|
||
|
||
rec = (bfd_byte *) location;
|
||
recend = rec + count;
|
||
while (rec < recend)
|
||
{
|
||
++section->lma;
|
||
rec += bfd_get_32 (abfd, rec) * 4;
|
||
}
|
||
|
||
BFD_ASSERT (rec == recend);
|
||
}
|
||
|
||
if (count == 0)
|
||
return true;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
|
||
|| bfd_write (location, 1, count, abfd) != count)
|
||
return false;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Get the GP value for an ECOFF file. This is a hook used by
|
||
nlmconv. */
|
||
|
||
bfd_vma
|
||
bfd_ecoff_get_gp_value (abfd)
|
||
bfd *abfd;
|
||
{
|
||
if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour
|
||
|| bfd_get_format (abfd) != bfd_object)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return 0;
|
||
}
|
||
|
||
return ecoff_data (abfd)->gp;
|
||
}
|
||
|
||
/* Set the GP value for an ECOFF file. This is a hook used by the
|
||
assembler. */
|
||
|
||
boolean
|
||
bfd_ecoff_set_gp_value (abfd, gp_value)
|
||
bfd *abfd;
|
||
bfd_vma gp_value;
|
||
{
|
||
if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour
|
||
|| bfd_get_format (abfd) != bfd_object)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return false;
|
||
}
|
||
|
||
ecoff_data (abfd)->gp = gp_value;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Set the register masks for an ECOFF file. This is a hook used by
|
||
the assembler. */
|
||
|
||
boolean
|
||
bfd_ecoff_set_regmasks (abfd, gprmask, fprmask, cprmask)
|
||
bfd *abfd;
|
||
unsigned long gprmask;
|
||
unsigned long fprmask;
|
||
unsigned long *cprmask;
|
||
{
|
||
ecoff_data_type *tdata;
|
||
|
||
if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour
|
||
|| bfd_get_format (abfd) != bfd_object)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return false;
|
||
}
|
||
|
||
tdata = ecoff_data (abfd);
|
||
tdata->gprmask = gprmask;
|
||
tdata->fprmask = fprmask;
|
||
if (cprmask != (unsigned long *) NULL)
|
||
{
|
||
register int i;
|
||
|
||
for (i = 0; i < 3; i++)
|
||
tdata->cprmask[i] = cprmask[i];
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Get ECOFF EXTR information for an external symbol. This function
|
||
is passed to bfd_ecoff_debug_externals. */
|
||
|
||
static boolean
|
||
ecoff_get_extr (sym, esym)
|
||
asymbol *sym;
|
||
EXTR *esym;
|
||
{
|
||
ecoff_symbol_type *ecoff_sym_ptr;
|
||
bfd *input_bfd;
|
||
|
||
if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour
|
||
|| ecoffsymbol (sym)->native == NULL)
|
||
{
|
||
/* Don't include debugging, local, or section symbols. */
|
||
if ((sym->flags & BSF_DEBUGGING) != 0
|
||
|| (sym->flags & BSF_LOCAL) != 0
|
||
|| (sym->flags & BSF_SECTION_SYM) != 0)
|
||
return false;
|
||
|
||
esym->jmptbl = 0;
|
||
esym->cobol_main = 0;
|
||
esym->weakext = (sym->flags & BSF_WEAK) != 0;
|
||
esym->reserved = 0;
|
||
esym->ifd = ifdNil;
|
||
/* FIXME: we can do better than this for st and sc. */
|
||
esym->asym.st = stGlobal;
|
||
esym->asym.sc = scAbs;
|
||
esym->asym.reserved = 0;
|
||
esym->asym.index = indexNil;
|
||
return true;
|
||
}
|
||
|
||
ecoff_sym_ptr = ecoffsymbol (sym);
|
||
|
||
if (ecoff_sym_ptr->local)
|
||
return false;
|
||
|
||
input_bfd = bfd_asymbol_bfd (sym);
|
||
(*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in))
|
||
(input_bfd, ecoff_sym_ptr->native, esym);
|
||
|
||
/* If the symbol was defined by the linker, then esym will be
|
||
undefined but sym will not be. Get a better class for such a
|
||
symbol. */
|
||
if ((esym->asym.sc == scUndefined
|
||
|| esym->asym.sc == scSUndefined)
|
||
&& ! bfd_is_und_section (bfd_get_section (sym)))
|
||
esym->asym.sc = scAbs;
|
||
|
||
/* Adjust the FDR index for the symbol by that used for the input
|
||
BFD. */
|
||
if (esym->ifd != -1)
|
||
{
|
||
struct ecoff_debug_info *input_debug;
|
||
|
||
input_debug = &ecoff_data (input_bfd)->debug_info;
|
||
BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax);
|
||
if (input_debug->ifdmap != (RFDT *) NULL)
|
||
esym->ifd = input_debug->ifdmap[esym->ifd];
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Set the external symbol index. This routine is passed to
|
||
bfd_ecoff_debug_externals. */
|
||
|
||
static void
|
||
ecoff_set_index (sym, indx)
|
||
asymbol *sym;
|
||
bfd_size_type indx;
|
||
{
|
||
ecoff_set_sym_index (sym, indx);
|
||
}
|
||
|
||
/* Write out an ECOFF file. */
|
||
|
||
boolean
|
||
_bfd_ecoff_write_object_contents (abfd)
|
||
bfd *abfd;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
const bfd_vma round = backend->round;
|
||
const bfd_size_type filhsz = bfd_coff_filhsz (abfd);
|
||
const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd);
|
||
const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd);
|
||
const bfd_size_type external_hdr_size
|
||
= backend->debug_swap.external_hdr_size;
|
||
const bfd_size_type external_reloc_size = backend->external_reloc_size;
|
||
void (* const adjust_reloc_out) PARAMS ((bfd *,
|
||
const arelent *,
|
||
struct internal_reloc *))
|
||
= backend->adjust_reloc_out;
|
||
void (* const swap_reloc_out) PARAMS ((bfd *,
|
||
const struct internal_reloc *,
|
||
PTR))
|
||
= backend->swap_reloc_out;
|
||
struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info;
|
||
HDRR * const symhdr = &debug->symbolic_header;
|
||
asection *current;
|
||
unsigned int count;
|
||
bfd_size_type reloc_size;
|
||
bfd_size_type text_size;
|
||
bfd_vma text_start;
|
||
boolean set_text_start;
|
||
bfd_size_type data_size;
|
||
bfd_vma data_start;
|
||
boolean set_data_start;
|
||
bfd_size_type bss_size;
|
||
PTR buff = NULL;
|
||
PTR reloc_buff = NULL;
|
||
struct internal_filehdr internal_f;
|
||
struct internal_aouthdr internal_a;
|
||
int i;
|
||
|
||
/* Determine where the sections and relocs will go in the output
|
||
file. */
|
||
reloc_size = ecoff_compute_reloc_file_positions (abfd);
|
||
|
||
count = 1;
|
||
for (current = abfd->sections;
|
||
current != (asection *)NULL;
|
||
current = current->next)
|
||
{
|
||
current->target_index = count;
|
||
++count;
|
||
}
|
||
|
||
if ((abfd->flags & D_PAGED) != 0)
|
||
text_size = _bfd_ecoff_sizeof_headers (abfd, false);
|
||
else
|
||
text_size = 0;
|
||
text_start = 0;
|
||
set_text_start = false;
|
||
data_size = 0;
|
||
data_start = 0;
|
||
set_data_start = false;
|
||
bss_size = 0;
|
||
|
||
/* Write section headers to the file. */
|
||
|
||
/* Allocate buff big enough to hold a section header,
|
||
file header, or a.out header. */
|
||
{
|
||
bfd_size_type siz;
|
||
siz = scnhsz;
|
||
if (siz < filhsz)
|
||
siz = filhsz;
|
||
if (siz < aoutsz)
|
||
siz = aoutsz;
|
||
buff = (PTR) bfd_malloc ((size_t) siz);
|
||
if (buff == NULL)
|
||
goto error_return;
|
||
}
|
||
|
||
internal_f.f_nscns = 0;
|
||
if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0)
|
||
goto error_return;
|
||
for (current = abfd->sections;
|
||
current != (asection *) NULL;
|
||
current = current->next)
|
||
{
|
||
struct internal_scnhdr section;
|
||
bfd_vma vma;
|
||
|
||
++internal_f.f_nscns;
|
||
|
||
strncpy (section.s_name, current->name, sizeof section.s_name);
|
||
|
||
/* This seems to be correct for Irix 4 shared libraries. */
|
||
vma = bfd_get_section_vma (abfd, current);
|
||
if (strcmp (current->name, _LIB) == 0)
|
||
section.s_vaddr = 0;
|
||
else
|
||
section.s_vaddr = vma;
|
||
|
||
section.s_paddr = current->lma;
|
||
section.s_size = bfd_get_section_size_before_reloc (current);
|
||
|
||
/* If this section is unloadable then the scnptr will be 0. */
|
||
if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
|
||
section.s_scnptr = 0;
|
||
else
|
||
section.s_scnptr = current->filepos;
|
||
section.s_relptr = current->rel_filepos;
|
||
|
||
/* FIXME: the lnnoptr of the .sbss or .sdata section of an
|
||
object file produced by the assembler is supposed to point to
|
||
information about how much room is required by objects of
|
||
various different sizes. I think this only matters if we
|
||
want the linker to compute the best size to use, or
|
||
something. I don't know what happens if the information is
|
||
not present. */
|
||
if (strcmp (current->name, _PDATA) != 0)
|
||
section.s_lnnoptr = 0;
|
||
else
|
||
{
|
||
/* The Alpha ECOFF .pdata section uses the lnnoptr field to
|
||
hold the number of entries in the section (each entry is
|
||
8 bytes). We stored this in the line_filepos field in
|
||
ecoff_compute_section_file_positions. */
|
||
section.s_lnnoptr = current->line_filepos;
|
||
}
|
||
|
||
section.s_nreloc = current->reloc_count;
|
||
section.s_nlnno = 0;
|
||
section.s_flags = ecoff_sec_to_styp_flags (current->name,
|
||
current->flags);
|
||
|
||
if (bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff) == 0
|
||
|| bfd_write (buff, 1, scnhsz, abfd) != scnhsz)
|
||
goto error_return;
|
||
|
||
if ((section.s_flags & STYP_TEXT) != 0
|
||
|| ((section.s_flags & STYP_RDATA) != 0
|
||
&& ecoff_data (abfd)->rdata_in_text)
|
||
|| section.s_flags == STYP_PDATA
|
||
|| (section.s_flags & STYP_DYNAMIC) != 0
|
||
|| (section.s_flags & STYP_LIBLIST) != 0
|
||
|| (section.s_flags & STYP_RELDYN) != 0
|
||
|| section.s_flags == STYP_CONFLIC
|
||
|| (section.s_flags & STYP_DYNSTR) != 0
|
||
|| (section.s_flags & STYP_DYNSYM) != 0
|
||
|| (section.s_flags & STYP_HASH) != 0
|
||
|| (section.s_flags & STYP_ECOFF_INIT) != 0
|
||
|| (section.s_flags & STYP_ECOFF_FINI) != 0
|
||
|| section.s_flags == STYP_RCONST)
|
||
{
|
||
text_size += bfd_get_section_size_before_reloc (current);
|
||
if (! set_text_start || text_start > vma)
|
||
{
|
||
text_start = vma;
|
||
set_text_start = true;
|
||
}
|
||
}
|
||
else if ((section.s_flags & STYP_RDATA) != 0
|
||
|| (section.s_flags & STYP_DATA) != 0
|
||
|| (section.s_flags & STYP_LITA) != 0
|
||
|| (section.s_flags & STYP_LIT8) != 0
|
||
|| (section.s_flags & STYP_LIT4) != 0
|
||
|| (section.s_flags & STYP_SDATA) != 0
|
||
|| section.s_flags == STYP_XDATA
|
||
|| (section.s_flags & STYP_GOT) != 0)
|
||
{
|
||
data_size += bfd_get_section_size_before_reloc (current);
|
||
if (! set_data_start || data_start > vma)
|
||
{
|
||
data_start = vma;
|
||
set_data_start = true;
|
||
}
|
||
}
|
||
else if ((section.s_flags & STYP_BSS) != 0
|
||
|| (section.s_flags & STYP_SBSS) != 0)
|
||
bss_size += bfd_get_section_size_before_reloc (current);
|
||
else if (section.s_flags == 0
|
||
|| (section.s_flags & STYP_ECOFF_LIB) != 0
|
||
|| section.s_flags == STYP_COMMENT)
|
||
/* Do nothing */ ;
|
||
else
|
||
abort ();
|
||
}
|
||
|
||
/* Set up the file header. */
|
||
|
||
internal_f.f_magic = ecoff_get_magic (abfd);
|
||
|
||
/* We will NOT put a fucking timestamp in the header here. Every
|
||
time you put it back, I will come in and take it out again. I'm
|
||
sorry. This field does not belong here. We fill it with a 0 so
|
||
it compares the same but is not a reasonable time. --
|
||
gnu@cygnus.com. */
|
||
internal_f.f_timdat = 0;
|
||
|
||
if (bfd_get_symcount (abfd) != 0)
|
||
{
|
||
/* The ECOFF f_nsyms field is not actually the number of
|
||
symbols, it's the size of symbolic information header. */
|
||
internal_f.f_nsyms = external_hdr_size;
|
||
internal_f.f_symptr = ecoff_data (abfd)->sym_filepos;
|
||
}
|
||
else
|
||
{
|
||
internal_f.f_nsyms = 0;
|
||
internal_f.f_symptr = 0;
|
||
}
|
||
|
||
internal_f.f_opthdr = aoutsz;
|
||
|
||
internal_f.f_flags = F_LNNO;
|
||
if (reloc_size == 0)
|
||
internal_f.f_flags |= F_RELFLG;
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
internal_f.f_flags |= F_LSYMS;
|
||
if (abfd->flags & EXEC_P)
|
||
internal_f.f_flags |= F_EXEC;
|
||
|
||
if (bfd_little_endian (abfd))
|
||
internal_f.f_flags |= F_AR32WR;
|
||
else
|
||
internal_f.f_flags |= F_AR32W;
|
||
|
||
/* Set up the ``optional'' header. */
|
||
if ((abfd->flags & D_PAGED) != 0)
|
||
internal_a.magic = ECOFF_AOUT_ZMAGIC;
|
||
else
|
||
internal_a.magic = ECOFF_AOUT_OMAGIC;
|
||
|
||
/* FIXME: Is this really correct? */
|
||
internal_a.vstamp = symhdr->vstamp;
|
||
|
||
/* At least on Ultrix, these have to be rounded to page boundaries.
|
||
FIXME: Is this true on other platforms? */
|
||
if ((abfd->flags & D_PAGED) != 0)
|
||
{
|
||
internal_a.tsize = (text_size + round - 1) &~ (round - 1);
|
||
internal_a.text_start = text_start &~ (round - 1);
|
||
internal_a.dsize = (data_size + round - 1) &~ (round - 1);
|
||
internal_a.data_start = data_start &~ (round - 1);
|
||
}
|
||
else
|
||
{
|
||
internal_a.tsize = text_size;
|
||
internal_a.text_start = text_start;
|
||
internal_a.dsize = data_size;
|
||
internal_a.data_start = data_start;
|
||
}
|
||
|
||
/* On Ultrix, the initial portions of the .sbss and .bss segments
|
||
are at the end of the data section. The bsize field in the
|
||
optional header records how many bss bytes are required beyond
|
||
those in the data section. The value is not rounded to a page
|
||
boundary. */
|
||
if (bss_size < internal_a.dsize - data_size)
|
||
bss_size = 0;
|
||
else
|
||
bss_size -= internal_a.dsize - data_size;
|
||
internal_a.bsize = bss_size;
|
||
internal_a.bss_start = internal_a.data_start + internal_a.dsize;
|
||
|
||
internal_a.entry = bfd_get_start_address (abfd);
|
||
|
||
internal_a.gp_value = ecoff_data (abfd)->gp;
|
||
|
||
internal_a.gprmask = ecoff_data (abfd)->gprmask;
|
||
internal_a.fprmask = ecoff_data (abfd)->fprmask;
|
||
for (i = 0; i < 4; i++)
|
||
internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i];
|
||
|
||
/* Let the backend adjust the headers if necessary. */
|
||
if (backend->adjust_headers)
|
||
{
|
||
if (! (*backend->adjust_headers) (abfd, &internal_f, &internal_a))
|
||
goto error_return;
|
||
}
|
||
|
||
/* Write out the file header and the optional header. */
|
||
|
||
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
||
goto error_return;
|
||
|
||
bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff);
|
||
if (bfd_write (buff, 1, filhsz, abfd) != filhsz)
|
||
goto error_return;
|
||
|
||
bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff);
|
||
if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz)
|
||
goto error_return;
|
||
|
||
/* Build the external symbol information. This must be done before
|
||
writing out the relocs so that we know the symbol indices. We
|
||
don't do this if this BFD was created by the backend linker,
|
||
since it will have already handled the symbols and relocs. */
|
||
if (! ecoff_data (abfd)->linker)
|
||
{
|
||
symhdr->iextMax = 0;
|
||
symhdr->issExtMax = 0;
|
||
debug->external_ext = debug->external_ext_end = NULL;
|
||
debug->ssext = debug->ssext_end = NULL;
|
||
if (bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap,
|
||
(((abfd->flags & EXEC_P) == 0)
|
||
? true : false),
|
||
ecoff_get_extr, ecoff_set_index)
|
||
== false)
|
||
goto error_return;
|
||
|
||
/* Write out the relocs. */
|
||
for (current = abfd->sections;
|
||
current != (asection *) NULL;
|
||
current = current->next)
|
||
{
|
||
arelent **reloc_ptr_ptr;
|
||
arelent **reloc_end;
|
||
char *out_ptr;
|
||
|
||
if (current->reloc_count == 0)
|
||
continue;
|
||
|
||
reloc_buff =
|
||
bfd_alloc (abfd, current->reloc_count * external_reloc_size);
|
||
if (reloc_buff == NULL)
|
||
goto error_return;
|
||
|
||
reloc_ptr_ptr = current->orelocation;
|
||
reloc_end = reloc_ptr_ptr + current->reloc_count;
|
||
out_ptr = (char *) reloc_buff;
|
||
for (;
|
||
reloc_ptr_ptr < reloc_end;
|
||
reloc_ptr_ptr++, out_ptr += external_reloc_size)
|
||
{
|
||
arelent *reloc;
|
||
asymbol *sym;
|
||
struct internal_reloc in;
|
||
|
||
memset ((PTR) &in, 0, sizeof in);
|
||
|
||
reloc = *reloc_ptr_ptr;
|
||
sym = *reloc->sym_ptr_ptr;
|
||
|
||
in.r_vaddr = (reloc->address
|
||
+ bfd_get_section_vma (abfd, current));
|
||
in.r_type = reloc->howto->type;
|
||
|
||
if ((sym->flags & BSF_SECTION_SYM) == 0)
|
||
{
|
||
in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr);
|
||
in.r_extern = 1;
|
||
}
|
||
else
|
||
{
|
||
CONST char *name;
|
||
|
||
name = bfd_get_section_name (abfd, bfd_get_section (sym));
|
||
if (strcmp (name, ".text") == 0)
|
||
in.r_symndx = RELOC_SECTION_TEXT;
|
||
else if (strcmp (name, ".rdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_RDATA;
|
||
else if (strcmp (name, ".data") == 0)
|
||
in.r_symndx = RELOC_SECTION_DATA;
|
||
else if (strcmp (name, ".sdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_SDATA;
|
||
else if (strcmp (name, ".sbss") == 0)
|
||
in.r_symndx = RELOC_SECTION_SBSS;
|
||
else if (strcmp (name, ".bss") == 0)
|
||
in.r_symndx = RELOC_SECTION_BSS;
|
||
else if (strcmp (name, ".init") == 0)
|
||
in.r_symndx = RELOC_SECTION_INIT;
|
||
else if (strcmp (name, ".lit8") == 0)
|
||
in.r_symndx = RELOC_SECTION_LIT8;
|
||
else if (strcmp (name, ".lit4") == 0)
|
||
in.r_symndx = RELOC_SECTION_LIT4;
|
||
else if (strcmp (name, ".xdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_XDATA;
|
||
else if (strcmp (name, ".pdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_PDATA;
|
||
else if (strcmp (name, ".fini") == 0)
|
||
in.r_symndx = RELOC_SECTION_FINI;
|
||
else if (strcmp (name, ".lita") == 0)
|
||
in.r_symndx = RELOC_SECTION_LITA;
|
||
else if (strcmp (name, "*ABS*") == 0)
|
||
in.r_symndx = RELOC_SECTION_ABS;
|
||
else if (strcmp (name, ".rconst") == 0)
|
||
in.r_symndx = RELOC_SECTION_RCONST;
|
||
else
|
||
abort ();
|
||
in.r_extern = 0;
|
||
}
|
||
|
||
(*adjust_reloc_out) (abfd, reloc, &in);
|
||
|
||
(*swap_reloc_out) (abfd, &in, (PTR) out_ptr);
|
||
}
|
||
|
||
if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0)
|
||
goto error_return;
|
||
if (bfd_write (reloc_buff,
|
||
external_reloc_size, current->reloc_count, abfd)
|
||
!= external_reloc_size * current->reloc_count)
|
||
goto error_return;
|
||
bfd_release (abfd, reloc_buff);
|
||
reloc_buff = NULL;
|
||
}
|
||
|
||
/* Write out the symbolic debugging information. */
|
||
if (bfd_get_symcount (abfd) > 0)
|
||
{
|
||
/* Write out the debugging information. */
|
||
if (bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap,
|
||
ecoff_data (abfd)->sym_filepos)
|
||
== false)
|
||
goto error_return;
|
||
}
|
||
}
|
||
|
||
/* The .bss section of a demand paged executable must receive an
|
||
entire page. If there are symbols, the symbols will start on the
|
||
next page. If there are no symbols, we must fill out the page by
|
||
hand. */
|
||
if (bfd_get_symcount (abfd) == 0
|
||
&& (abfd->flags & EXEC_P) != 0
|
||
&& (abfd->flags & D_PAGED) != 0)
|
||
{
|
||
char c;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1,
|
||
SEEK_SET) != 0)
|
||
goto error_return;
|
||
if (bfd_read (&c, 1, 1, abfd) == 0)
|
||
c = 0;
|
||
if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1,
|
||
SEEK_SET) != 0)
|
||
goto error_return;
|
||
if (bfd_write (&c, 1, 1, abfd) != 1)
|
||
goto error_return;
|
||
}
|
||
|
||
if (reloc_buff != NULL)
|
||
bfd_release (abfd, reloc_buff);
|
||
if (buff != NULL)
|
||
free (buff);
|
||
return true;
|
||
error_return:
|
||
if (reloc_buff != NULL)
|
||
bfd_release (abfd, reloc_buff);
|
||
if (buff != NULL)
|
||
free (buff);
|
||
return false;
|
||
}
|
||
|
||
/* Archive handling. ECOFF uses what appears to be a unique type of
|
||
archive header (armap). The byte ordering of the armap and the
|
||
contents are encoded in the name of the armap itself. At least for
|
||
now, we only support archives with the same byte ordering in the
|
||
armap and the contents.
|
||
|
||
The first four bytes in the armap are the number of symbol
|
||
definitions. This is always a power of two.
|
||
|
||
This is followed by the symbol definitions. Each symbol definition
|
||
occupies 8 bytes. The first four bytes are the offset from the
|
||
start of the armap strings to the null-terminated string naming
|
||
this symbol. The second four bytes are the file offset to the
|
||
archive member which defines this symbol. If the second four bytes
|
||
are 0, then this is not actually a symbol definition, and it should
|
||
be ignored.
|
||
|
||
The symbols are hashed into the armap with a closed hashing scheme.
|
||
See the functions below for the details of the algorithm.
|
||
|
||
After the symbol definitions comes four bytes holding the size of
|
||
the string table, followed by the string table itself. */
|
||
|
||
/* The name of an archive headers looks like this:
|
||
__________E[BL]E[BL]_ (with a trailing space).
|
||
The trailing space is changed to an X if the archive is changed to
|
||
indicate that the armap is out of date.
|
||
|
||
The Alpha seems to use ________64E[BL]E[BL]_. */
|
||
|
||
#define ARMAP_BIG_ENDIAN 'B'
|
||
#define ARMAP_LITTLE_ENDIAN 'L'
|
||
#define ARMAP_MARKER 'E'
|
||
#define ARMAP_START_LENGTH 10
|
||
#define ARMAP_HEADER_MARKER_INDEX 10
|
||
#define ARMAP_HEADER_ENDIAN_INDEX 11
|
||
#define ARMAP_OBJECT_MARKER_INDEX 12
|
||
#define ARMAP_OBJECT_ENDIAN_INDEX 13
|
||
#define ARMAP_END_INDEX 14
|
||
#define ARMAP_END "_ "
|
||
|
||
/* This is a magic number used in the hashing algorithm. */
|
||
#define ARMAP_HASH_MAGIC 0x9dd68ab5
|
||
|
||
/* This returns the hash value to use for a string. It also sets
|
||
*REHASH to the rehash adjustment if the first slot is taken. SIZE
|
||
is the number of entries in the hash table, and HLOG is the log
|
||
base 2 of SIZE. */
|
||
|
||
static unsigned int
|
||
ecoff_armap_hash (s, rehash, size, hlog)
|
||
CONST char *s;
|
||
unsigned int *rehash;
|
||
unsigned int size;
|
||
unsigned int hlog;
|
||
{
|
||
unsigned int hash;
|
||
|
||
if (hlog == 0)
|
||
return 0;
|
||
hash = *s++;
|
||
while (*s != '\0')
|
||
hash = ((hash >> 27) | (hash << 5)) + *s++;
|
||
hash *= ARMAP_HASH_MAGIC;
|
||
*rehash = (hash & (size - 1)) | 1;
|
||
return hash >> (32 - hlog);
|
||
}
|
||
|
||
/* Read in the armap. */
|
||
|
||
boolean
|
||
_bfd_ecoff_slurp_armap (abfd)
|
||
bfd *abfd;
|
||
{
|
||
char nextname[17];
|
||
unsigned int i;
|
||
struct areltdata *mapdata;
|
||
bfd_size_type parsed_size;
|
||
char *raw_armap;
|
||
struct artdata *ardata;
|
||
unsigned int count;
|
||
char *raw_ptr;
|
||
struct symdef *symdef_ptr;
|
||
char *stringbase;
|
||
|
||
/* Get the name of the first element. */
|
||
i = bfd_read ((PTR) nextname, 1, 16, abfd);
|
||
if (i == 0)
|
||
return true;
|
||
if (i != 16)
|
||
return false;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
|
||
return false;
|
||
|
||
/* Irix 4.0.5F apparently can use either an ECOFF armap or a
|
||
standard COFF armap. We could move the ECOFF armap stuff into
|
||
bfd_slurp_armap, but that seems inappropriate since no other
|
||
target uses this format. Instead, we check directly for a COFF
|
||
armap. */
|
||
if (strncmp (nextname, "/ ", 16) == 0)
|
||
return bfd_slurp_armap (abfd);
|
||
|
||
/* See if the first element is an armap. */
|
||
if (strncmp (nextname, ecoff_backend (abfd)->armap_start,
|
||
ARMAP_START_LENGTH) != 0
|
||
|| nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER
|
||
|| (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN
|
||
&& nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN)
|
||
|| nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER
|
||
|| (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN
|
||
&& nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN)
|
||
|| strncmp (nextname + ARMAP_END_INDEX,
|
||
ARMAP_END, sizeof ARMAP_END - 1) != 0)
|
||
{
|
||
bfd_has_map (abfd) = false;
|
||
return true;
|
||
}
|
||
|
||
/* Make sure we have the right byte ordering. */
|
||
if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN)
|
||
^ (bfd_header_big_endian (abfd)))
|
||
|| ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN)
|
||
^ (bfd_big_endian (abfd))))
|
||
{
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return false;
|
||
}
|
||
|
||
/* Read in the armap. */
|
||
ardata = bfd_ardata (abfd);
|
||
mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
|
||
if (mapdata == (struct areltdata *) NULL)
|
||
return false;
|
||
parsed_size = mapdata->parsed_size;
|
||
bfd_release (abfd, (PTR) mapdata);
|
||
|
||
raw_armap = (char *) bfd_alloc (abfd, parsed_size);
|
||
if (raw_armap == (char *) NULL)
|
||
return false;
|
||
|
||
if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
bfd_release (abfd, (PTR) raw_armap);
|
||
return false;
|
||
}
|
||
|
||
ardata->tdata = (PTR) raw_armap;
|
||
|
||
count = bfd_h_get_32 (abfd, (PTR) raw_armap);
|
||
|
||
ardata->symdef_count = 0;
|
||
ardata->cache = (struct ar_cache *) NULL;
|
||
|
||
/* This code used to overlay the symdefs over the raw archive data,
|
||
but that doesn't work on a 64 bit host. */
|
||
|
||
stringbase = raw_armap + count * 8 + 8;
|
||
|
||
#ifdef CHECK_ARMAP_HASH
|
||
{
|
||
unsigned int hlog;
|
||
|
||
/* Double check that I have the hashing algorithm right by making
|
||
sure that every symbol can be looked up successfully. */
|
||
hlog = 0;
|
||
for (i = 1; i < count; i <<= 1)
|
||
hlog++;
|
||
BFD_ASSERT (i == count);
|
||
|
||
raw_ptr = raw_armap + 4;
|
||
for (i = 0; i < count; i++, raw_ptr += 8)
|
||
{
|
||
unsigned int name_offset, file_offset;
|
||
unsigned int hash, rehash, srch;
|
||
|
||
name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr);
|
||
file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4));
|
||
if (file_offset == 0)
|
||
continue;
|
||
hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count,
|
||
hlog);
|
||
if (hash == i)
|
||
continue;
|
||
|
||
/* See if we can rehash to this location. */
|
||
for (srch = (hash + rehash) & (count - 1);
|
||
srch != hash && srch != i;
|
||
srch = (srch + rehash) & (count - 1))
|
||
BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8))
|
||
!= 0);
|
||
BFD_ASSERT (srch == i);
|
||
}
|
||
}
|
||
|
||
#endif /* CHECK_ARMAP_HASH */
|
||
|
||
raw_ptr = raw_armap + 4;
|
||
for (i = 0; i < count; i++, raw_ptr += 8)
|
||
if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0)
|
||
++ardata->symdef_count;
|
||
|
||
symdef_ptr = ((struct symdef *)
|
||
bfd_alloc (abfd,
|
||
ardata->symdef_count * sizeof (struct symdef)));
|
||
if (!symdef_ptr)
|
||
return false;
|
||
|
||
ardata->symdefs = (carsym *) symdef_ptr;
|
||
|
||
raw_ptr = raw_armap + 4;
|
||
for (i = 0; i < count; i++, raw_ptr += 8)
|
||
{
|
||
unsigned int name_offset, file_offset;
|
||
|
||
file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4));
|
||
if (file_offset == 0)
|
||
continue;
|
||
name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr);
|
||
symdef_ptr->s.name = stringbase + name_offset;
|
||
symdef_ptr->file_offset = file_offset;
|
||
++symdef_ptr;
|
||
}
|
||
|
||
ardata->first_file_filepos = bfd_tell (abfd);
|
||
/* Pad to an even boundary. */
|
||
ardata->first_file_filepos += ardata->first_file_filepos % 2;
|
||
|
||
bfd_has_map (abfd) = true;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Write out an armap. */
|
||
|
||
boolean
|
||
_bfd_ecoff_write_armap (abfd, elength, map, orl_count, stridx)
|
||
bfd *abfd;
|
||
unsigned int elength;
|
||
struct orl *map;
|
||
unsigned int orl_count;
|
||
int stridx;
|
||
{
|
||
unsigned int hashsize, hashlog;
|
||
unsigned int symdefsize;
|
||
int padit;
|
||
unsigned int stringsize;
|
||
unsigned int mapsize;
|
||
file_ptr firstreal;
|
||
struct ar_hdr hdr;
|
||
struct stat statbuf;
|
||
unsigned int i;
|
||
bfd_byte temp[4];
|
||
bfd_byte *hashtable;
|
||
bfd *current;
|
||
bfd *last_elt;
|
||
|
||
/* Ultrix appears to use as a hash table size the least power of two
|
||
greater than twice the number of entries. */
|
||
for (hashlog = 0; ((unsigned int) 1 << hashlog) <= 2 * orl_count; hashlog++)
|
||
;
|
||
hashsize = 1 << hashlog;
|
||
|
||
symdefsize = hashsize * 8;
|
||
padit = stridx % 2;
|
||
stringsize = stridx + padit;
|
||
|
||
/* Include 8 bytes to store symdefsize and stringsize in output. */
|
||
mapsize = symdefsize + stringsize + 8;
|
||
|
||
firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength;
|
||
|
||
memset ((PTR) &hdr, 0, sizeof hdr);
|
||
|
||
/* Work out the ECOFF armap name. */
|
||
strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start);
|
||
hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER;
|
||
hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] =
|
||
(bfd_header_big_endian (abfd)
|
||
? ARMAP_BIG_ENDIAN
|
||
: ARMAP_LITTLE_ENDIAN);
|
||
hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER;
|
||
hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] =
|
||
bfd_big_endian (abfd) ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN;
|
||
memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1);
|
||
|
||
/* Write the timestamp of the archive header to be just a little bit
|
||
later than the timestamp of the file, otherwise the linker will
|
||
complain that the index is out of date. Actually, the Ultrix
|
||
linker just checks the archive name; the GNU linker may check the
|
||
date. */
|
||
stat (abfd->filename, &statbuf);
|
||
sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60));
|
||
|
||
/* The DECstation uses zeroes for the uid, gid and mode of the
|
||
armap. */
|
||
hdr.ar_uid[0] = '0';
|
||
hdr.ar_gid[0] = '0';
|
||
#if 0
|
||
hdr.ar_mode[0] = '0';
|
||
#else
|
||
/* Building gcc ends up extracting the armap as a file - twice. */
|
||
hdr.ar_mode[0] = '6';
|
||
hdr.ar_mode[1] = '4';
|
||
hdr.ar_mode[2] = '4';
|
||
#endif
|
||
|
||
sprintf (hdr.ar_size, "%-10d", (int) mapsize);
|
||
|
||
hdr.ar_fmag[0] = '`';
|
||
hdr.ar_fmag[1] = '\012';
|
||
|
||
/* Turn all null bytes in the header into spaces. */
|
||
for (i = 0; i < sizeof (struct ar_hdr); i++)
|
||
if (((char *)(&hdr))[i] == '\0')
|
||
(((char *)(&hdr))[i]) = ' ';
|
||
|
||
if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd)
|
||
!= sizeof (struct ar_hdr))
|
||
return false;
|
||
|
||
bfd_h_put_32 (abfd, (bfd_vma) hashsize, temp);
|
||
if (bfd_write ((PTR) temp, 1, 4, abfd) != 4)
|
||
return false;
|
||
|
||
hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize);
|
||
if (!hashtable)
|
||
return false;
|
||
|
||
current = abfd->archive_head;
|
||
last_elt = current;
|
||
for (i = 0; i < orl_count; i++)
|
||
{
|
||
unsigned int hash, rehash;
|
||
|
||
/* Advance firstreal to the file position of this archive
|
||
element. */
|
||
if (((bfd *) map[i].pos) != last_elt)
|
||
{
|
||
do
|
||
{
|
||
firstreal += arelt_size (current) + sizeof (struct ar_hdr);
|
||
firstreal += firstreal % 2;
|
||
current = current->next;
|
||
}
|
||
while (current != (bfd *) map[i].pos);
|
||
}
|
||
|
||
last_elt = current;
|
||
|
||
hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog);
|
||
if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0)
|
||
{
|
||
unsigned int srch;
|
||
|
||
/* The desired slot is already taken. */
|
||
for (srch = (hash + rehash) & (hashsize - 1);
|
||
srch != hash;
|
||
srch = (srch + rehash) & (hashsize - 1))
|
||
if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0)
|
||
break;
|
||
|
||
BFD_ASSERT (srch != hash);
|
||
|
||
hash = srch;
|
||
}
|
||
|
||
bfd_h_put_32 (abfd, (bfd_vma) map[i].namidx,
|
||
(PTR) (hashtable + hash * 8));
|
||
bfd_h_put_32 (abfd, (bfd_vma) firstreal,
|
||
(PTR) (hashtable + hash * 8 + 4));
|
||
}
|
||
|
||
if (bfd_write ((PTR) hashtable, 1, symdefsize, abfd) != symdefsize)
|
||
return false;
|
||
|
||
bfd_release (abfd, hashtable);
|
||
|
||
/* Now write the strings. */
|
||
bfd_h_put_32 (abfd, (bfd_vma) stringsize, temp);
|
||
if (bfd_write ((PTR) temp, 1, 4, abfd) != 4)
|
||
return false;
|
||
for (i = 0; i < orl_count; i++)
|
||
{
|
||
bfd_size_type len;
|
||
|
||
len = strlen (*map[i].name) + 1;
|
||
if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len)
|
||
return false;
|
||
}
|
||
|
||
/* The spec sez this should be a newline. But in order to be
|
||
bug-compatible for DECstation ar we use a null. */
|
||
if (padit)
|
||
{
|
||
if (bfd_write ("", 1, 1, abfd) != 1)
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* See whether this BFD is an archive. If it is, read in the armap
|
||
and the extended name table. */
|
||
|
||
const bfd_target *
|
||
_bfd_ecoff_archive_p (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct artdata *tdata_hold;
|
||
char armag[SARMAG + 1];
|
||
|
||
tdata_hold = abfd->tdata.aout_ar_data;
|
||
|
||
if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return (const bfd_target *) NULL;
|
||
}
|
||
|
||
if (strncmp (armag, ARMAG, SARMAG) != 0)
|
||
{
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return NULL;
|
||
}
|
||
|
||
/* We are setting bfd_ardata(abfd) here, but since bfd_ardata
|
||
involves a cast, we can't do it as the left operand of
|
||
assignment. */
|
||
abfd->tdata.aout_ar_data =
|
||
(struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata));
|
||
|
||
if (bfd_ardata (abfd) == (struct artdata *) NULL)
|
||
{
|
||
abfd->tdata.aout_ar_data = tdata_hold;
|
||
return (const bfd_target *) NULL;
|
||
}
|
||
|
||
bfd_ardata (abfd)->first_file_filepos = SARMAG;
|
||
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)->tdata = NULL;
|
||
|
||
if (_bfd_ecoff_slurp_armap (abfd) == false
|
||
|| _bfd_ecoff_slurp_extended_name_table (abfd) == false)
|
||
{
|
||
bfd_release (abfd, bfd_ardata (abfd));
|
||
abfd->tdata.aout_ar_data = tdata_hold;
|
||
return (const bfd_target *) NULL;
|
||
}
|
||
|
||
if (bfd_has_map (abfd))
|
||
{
|
||
bfd *first;
|
||
|
||
/* This archive has a map, so we may presume that the contents
|
||
are object files. Make sure that if the first file in the
|
||
archive can be recognized as an object file, it is for this
|
||
target. If not, assume that this is the wrong format. If
|
||
the first file is not an object file, somebody is doing
|
||
something weird, and we permit it so that ar -t will work. */
|
||
|
||
first = bfd_openr_next_archived_file (abfd, (bfd *) NULL);
|
||
if (first != NULL)
|
||
{
|
||
boolean fail;
|
||
|
||
first->target_defaulted = false;
|
||
fail = false;
|
||
if (bfd_check_format (first, bfd_object)
|
||
&& first->xvec != abfd->xvec)
|
||
{
|
||
(void) bfd_close (first);
|
||
bfd_release (abfd, bfd_ardata (abfd));
|
||
abfd->tdata.aout_ar_data = tdata_hold;
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return NULL;
|
||
}
|
||
|
||
/* We ought to close first here, but we can't, because we
|
||
have no way to remove it from the archive cache. FIXME. */
|
||
}
|
||
}
|
||
|
||
return abfd->xvec;
|
||
}
|
||
|
||
/* ECOFF linker code. */
|
||
|
||
static struct bfd_hash_entry *ecoff_link_hash_newfunc
|
||
PARAMS ((struct bfd_hash_entry *entry,
|
||
struct bfd_hash_table *table,
|
||
const char *string));
|
||
static boolean ecoff_link_add_archive_symbols
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
static boolean ecoff_link_check_archive_element
|
||
PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded));
|
||
static boolean ecoff_link_add_object_symbols
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
static boolean ecoff_link_add_externals
|
||
PARAMS ((bfd *, struct bfd_link_info *, PTR, char *));
|
||
|
||
/* Routine to create an entry in an ECOFF link hash table. */
|
||
|
||
static struct bfd_hash_entry *
|
||
ecoff_link_hash_newfunc (entry, table, string)
|
||
struct bfd_hash_entry *entry;
|
||
struct bfd_hash_table *table;
|
||
const char *string;
|
||
{
|
||
struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry;
|
||
|
||
/* Allocate the structure if it has not already been allocated by a
|
||
subclass. */
|
||
if (ret == (struct ecoff_link_hash_entry *) NULL)
|
||
ret = ((struct ecoff_link_hash_entry *)
|
||
bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry)));
|
||
if (ret == (struct ecoff_link_hash_entry *) NULL)
|
||
return NULL;
|
||
|
||
/* Call the allocation method of the superclass. */
|
||
ret = ((struct ecoff_link_hash_entry *)
|
||
_bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
||
table, string));
|
||
|
||
if (ret)
|
||
{
|
||
/* Set local fields. */
|
||
ret->indx = -1;
|
||
ret->abfd = NULL;
|
||
ret->written = 0;
|
||
ret->small = 0;
|
||
}
|
||
memset ((PTR) &ret->esym, 0, sizeof ret->esym);
|
||
|
||
return (struct bfd_hash_entry *) ret;
|
||
}
|
||
|
||
/* Create an ECOFF link hash table. */
|
||
|
||
struct bfd_link_hash_table *
|
||
_bfd_ecoff_bfd_link_hash_table_create (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct ecoff_link_hash_table *ret;
|
||
|
||
ret = ((struct ecoff_link_hash_table *)
|
||
bfd_alloc (abfd, sizeof (struct ecoff_link_hash_table)));
|
||
if (ret == NULL)
|
||
return NULL;
|
||
if (! _bfd_link_hash_table_init (&ret->root, abfd,
|
||
ecoff_link_hash_newfunc))
|
||
{
|
||
free (ret);
|
||
return (struct bfd_link_hash_table *) NULL;
|
||
}
|
||
return &ret->root;
|
||
}
|
||
|
||
/* Look up an entry in an ECOFF link hash table. */
|
||
|
||
#define ecoff_link_hash_lookup(table, string, create, copy, follow) \
|
||
((struct ecoff_link_hash_entry *) \
|
||
bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow)))
|
||
|
||
/* Traverse an ECOFF link hash table. */
|
||
|
||
#define ecoff_link_hash_traverse(table, func, info) \
|
||
(bfd_link_hash_traverse \
|
||
(&(table)->root, \
|
||
(boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
|
||
(info)))
|
||
|
||
/* Get the ECOFF link hash table from the info structure. This is
|
||
just a cast. */
|
||
|
||
#define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash))
|
||
|
||
/* Given an ECOFF BFD, add symbols to the global hash table as
|
||
appropriate. */
|
||
|
||
boolean
|
||
_bfd_ecoff_bfd_link_add_symbols (abfd, info)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
switch (bfd_get_format (abfd))
|
||
{
|
||
case bfd_object:
|
||
return ecoff_link_add_object_symbols (abfd, info);
|
||
case bfd_archive:
|
||
return ecoff_link_add_archive_symbols (abfd, info);
|
||
default:
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/* Add the symbols from an archive file to the global hash table.
|
||
This looks through the undefined symbols, looks each one up in the
|
||
archive hash table, and adds any associated object file. We do not
|
||
use _bfd_generic_link_add_archive_symbols because ECOFF archives
|
||
already have a hash table, so there is no reason to construct
|
||
another one. */
|
||
|
||
static boolean
|
||
ecoff_link_add_archive_symbols (abfd, info)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
const bfd_byte *raw_armap;
|
||
struct bfd_link_hash_entry **pundef;
|
||
unsigned int armap_count;
|
||
unsigned int armap_log;
|
||
unsigned int i;
|
||
const bfd_byte *hashtable;
|
||
const char *stringbase;
|
||
|
||
if (! bfd_has_map (abfd))
|
||
{
|
||
/* An empty archive is a special case. */
|
||
if (bfd_openr_next_archived_file (abfd, (bfd *) NULL) == NULL)
|
||
return true;
|
||
bfd_set_error (bfd_error_no_armap);
|
||
return false;
|
||
}
|
||
|
||
/* If we don't have any raw data for this archive, as can happen on
|
||
Irix 4.0.5F, we call the generic routine.
|
||
FIXME: We should be more clever about this, since someday tdata
|
||
may get to something for a generic archive. */
|
||
raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata;
|
||
if (raw_armap == (bfd_byte *) NULL)
|
||
return (_bfd_generic_link_add_archive_symbols
|
||
(abfd, info, ecoff_link_check_archive_element));
|
||
|
||
armap_count = bfd_h_get_32 (abfd, raw_armap);
|
||
|
||
armap_log = 0;
|
||
for (i = 1; i < armap_count; i <<= 1)
|
||
armap_log++;
|
||
BFD_ASSERT (i == armap_count);
|
||
|
||
hashtable = raw_armap + 4;
|
||
stringbase = (const char *) raw_armap + armap_count * 8 + 8;
|
||
|
||
/* Look through the list of undefined symbols. */
|
||
pundef = &info->hash->undefs;
|
||
while (*pundef != (struct bfd_link_hash_entry *) NULL)
|
||
{
|
||
struct bfd_link_hash_entry *h;
|
||
unsigned int hash, rehash;
|
||
unsigned int file_offset;
|
||
const char *name;
|
||
bfd *element;
|
||
|
||
h = *pundef;
|
||
|
||
/* When a symbol is defined, it is not necessarily removed from
|
||
the list. */
|
||
if (h->type != bfd_link_hash_undefined
|
||
&& h->type != bfd_link_hash_common)
|
||
{
|
||
/* Remove this entry from the list, for general cleanliness
|
||
and because we are going to look through the list again
|
||
if we search any more libraries. We can't remove the
|
||
entry if it is the tail, because that would lose any
|
||
entries we add to the list later on. */
|
||
if (*pundef != info->hash->undefs_tail)
|
||
*pundef = (*pundef)->next;
|
||
else
|
||
pundef = &(*pundef)->next;
|
||
continue;
|
||
}
|
||
|
||
/* Native ECOFF linkers do not pull in archive elements merely
|
||
to satisfy common definitions, so neither do we. We leave
|
||
them on the list, though, in case we are linking against some
|
||
other object format. */
|
||
if (h->type != bfd_link_hash_undefined)
|
||
{
|
||
pundef = &(*pundef)->next;
|
||
continue;
|
||
}
|
||
|
||
/* Look for this symbol in the archive hash table. */
|
||
hash = ecoff_armap_hash (h->root.string, &rehash, armap_count,
|
||
armap_log);
|
||
|
||
file_offset = bfd_h_get_32 (abfd, hashtable + (hash * 8) + 4);
|
||
if (file_offset == 0)
|
||
{
|
||
/* Nothing in this slot. */
|
||
pundef = &(*pundef)->next;
|
||
continue;
|
||
}
|
||
|
||
name = stringbase + bfd_h_get_32 (abfd, hashtable + (hash * 8));
|
||
if (name[0] != h->root.string[0]
|
||
|| strcmp (name, h->root.string) != 0)
|
||
{
|
||
unsigned int srch;
|
||
boolean found;
|
||
|
||
/* That was the wrong symbol. Try rehashing. */
|
||
found = false;
|
||
for (srch = (hash + rehash) & (armap_count - 1);
|
||
srch != hash;
|
||
srch = (srch + rehash) & (armap_count - 1))
|
||
{
|
||
file_offset = bfd_h_get_32 (abfd, hashtable + (srch * 8) + 4);
|
||
if (file_offset == 0)
|
||
break;
|
||
name = stringbase + bfd_h_get_32 (abfd, hashtable + (srch * 8));
|
||
if (name[0] == h->root.string[0]
|
||
&& strcmp (name, h->root.string) == 0)
|
||
{
|
||
found = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (! found)
|
||
{
|
||
pundef = &(*pundef)->next;
|
||
continue;
|
||
}
|
||
|
||
hash = srch;
|
||
}
|
||
|
||
element = (*backend->get_elt_at_filepos) (abfd, file_offset);
|
||
if (element == (bfd *) NULL)
|
||
return false;
|
||
|
||
if (! bfd_check_format (element, bfd_object))
|
||
return false;
|
||
|
||
/* Unlike the generic linker, we know that this element provides
|
||
a definition for an undefined symbol and we know that we want
|
||
to include it. We don't need to check anything. */
|
||
if (! (*info->callbacks->add_archive_element) (info, element, name))
|
||
return false;
|
||
if (! ecoff_link_add_object_symbols (element, info))
|
||
return false;
|
||
|
||
pundef = &(*pundef)->next;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* This is called if we used _bfd_generic_link_add_archive_symbols
|
||
because we were not dealing with an ECOFF archive. */
|
||
|
||
static boolean
|
||
ecoff_link_check_archive_element (abfd, info, pneeded)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
boolean *pneeded;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *))
|
||
= backend->debug_swap.swap_ext_in;
|
||
HDRR *symhdr;
|
||
bfd_size_type external_ext_size;
|
||
PTR external_ext = NULL;
|
||
size_t esize;
|
||
char *ssext = NULL;
|
||
char *ext_ptr;
|
||
char *ext_end;
|
||
|
||
*pneeded = false;
|
||
|
||
if (! ecoff_slurp_symbolic_header (abfd))
|
||
goto error_return;
|
||
|
||
/* If there are no symbols, we don't want it. */
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
goto successful_return;
|
||
|
||
symhdr = &ecoff_data (abfd)->debug_info.symbolic_header;
|
||
|
||
/* Read in the external symbols and external strings. */
|
||
external_ext_size = backend->debug_swap.external_ext_size;
|
||
esize = symhdr->iextMax * external_ext_size;
|
||
external_ext = (PTR) bfd_malloc (esize);
|
||
if (external_ext == NULL && esize != 0)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0
|
||
|| bfd_read (external_ext, 1, esize, abfd) != esize)
|
||
goto error_return;
|
||
|
||
ssext = (char *) bfd_malloc (symhdr->issExtMax);
|
||
if (ssext == NULL && symhdr->issExtMax != 0)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0
|
||
|| (bfd_read (ssext, 1, symhdr->issExtMax, abfd) !=
|
||
(bfd_size_type) symhdr->issExtMax))
|
||
goto error_return;
|
||
|
||
/* Look through the external symbols to see if they define some
|
||
symbol that is currently undefined. */
|
||
ext_ptr = (char *) external_ext;
|
||
ext_end = ext_ptr + esize;
|
||
for (; ext_ptr < ext_end; ext_ptr += external_ext_size)
|
||
{
|
||
EXTR esym;
|
||
boolean def;
|
||
const char *name;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
(*swap_ext_in) (abfd, (PTR) ext_ptr, &esym);
|
||
|
||
/* See if this symbol defines something. */
|
||
if (esym.asym.st != stGlobal
|
||
&& esym.asym.st != stLabel
|
||
&& esym.asym.st != stProc)
|
||
continue;
|
||
|
||
switch (esym.asym.sc)
|
||
{
|
||
case scText:
|
||
case scData:
|
||
case scBss:
|
||
case scAbs:
|
||
case scSData:
|
||
case scSBss:
|
||
case scRData:
|
||
case scCommon:
|
||
case scSCommon:
|
||
case scInit:
|
||
case scFini:
|
||
case scRConst:
|
||
def = true;
|
||
break;
|
||
default:
|
||
def = false;
|
||
break;
|
||
}
|
||
|
||
if (! def)
|
||
continue;
|
||
|
||
name = ssext + esym.asym.iss;
|
||
h = bfd_link_hash_lookup (info->hash, name, false, false, true);
|
||
|
||
/* Unlike the generic linker, we do not pull in elements because
|
||
of common symbols. */
|
||
if (h == (struct bfd_link_hash_entry *) NULL
|
||
|| h->type != bfd_link_hash_undefined)
|
||
continue;
|
||
|
||
/* Include this element. */
|
||
if (! (*info->callbacks->add_archive_element) (info, abfd, name))
|
||
goto error_return;
|
||
if (! ecoff_link_add_externals (abfd, info, external_ext, ssext))
|
||
goto error_return;
|
||
|
||
*pneeded = true;
|
||
goto successful_return;
|
||
}
|
||
|
||
successful_return:
|
||
if (external_ext != NULL)
|
||
free (external_ext);
|
||
if (ssext != NULL)
|
||
free (ssext);
|
||
return true;
|
||
error_return:
|
||
if (external_ext != NULL)
|
||
free (external_ext);
|
||
if (ssext != NULL)
|
||
free (ssext);
|
||
return false;
|
||
}
|
||
|
||
/* Add symbols from an ECOFF object file to the global linker hash
|
||
table. */
|
||
|
||
static boolean
|
||
ecoff_link_add_object_symbols (abfd, info)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
HDRR *symhdr;
|
||
bfd_size_type external_ext_size;
|
||
PTR external_ext = NULL;
|
||
size_t esize;
|
||
char *ssext = NULL;
|
||
boolean result;
|
||
|
||
if (! ecoff_slurp_symbolic_header (abfd))
|
||
return false;
|
||
|
||
/* If there are no symbols, we don't want it. */
|
||
if (bfd_get_symcount (abfd) == 0)
|
||
return true;
|
||
|
||
symhdr = &ecoff_data (abfd)->debug_info.symbolic_header;
|
||
|
||
/* Read in the external symbols and external strings. */
|
||
external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size;
|
||
esize = symhdr->iextMax * external_ext_size;
|
||
external_ext = (PTR) bfd_malloc (esize);
|
||
if (external_ext == NULL && esize != 0)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0
|
||
|| bfd_read (external_ext, 1, esize, abfd) != esize)
|
||
goto error_return;
|
||
|
||
ssext = (char *) bfd_malloc (symhdr->issExtMax);
|
||
if (ssext == NULL && symhdr->issExtMax != 0)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0
|
||
|| (bfd_read (ssext, 1, symhdr->issExtMax, abfd)
|
||
!= (bfd_size_type) symhdr->issExtMax))
|
||
goto error_return;
|
||
|
||
result = ecoff_link_add_externals (abfd, info, external_ext, ssext);
|
||
|
||
if (ssext != NULL)
|
||
free (ssext);
|
||
if (external_ext != NULL)
|
||
free (external_ext);
|
||
return result;
|
||
|
||
error_return:
|
||
if (ssext != NULL)
|
||
free (ssext);
|
||
if (external_ext != NULL)
|
||
free (external_ext);
|
||
return false;
|
||
}
|
||
|
||
/* Add the external symbols of an object file to the global linker
|
||
hash table. The external symbols and strings we are passed are
|
||
just allocated on the stack, and will be discarded. We must
|
||
explicitly save any information we may need later on in the link.
|
||
We do not want to read the external symbol information again. */
|
||
|
||
static boolean
|
||
ecoff_link_add_externals (abfd, info, external_ext, ssext)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
PTR external_ext;
|
||
char *ssext;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *))
|
||
= backend->debug_swap.swap_ext_in;
|
||
bfd_size_type external_ext_size = backend->debug_swap.external_ext_size;
|
||
unsigned long ext_count;
|
||
struct ecoff_link_hash_entry **sym_hash;
|
||
char *ext_ptr;
|
||
char *ext_end;
|
||
|
||
ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax;
|
||
|
||
sym_hash = ((struct ecoff_link_hash_entry **)
|
||
bfd_alloc (abfd,
|
||
ext_count * sizeof (struct bfd_link_hash_entry *)));
|
||
if (!sym_hash)
|
||
return false;
|
||
ecoff_data (abfd)->sym_hashes = sym_hash;
|
||
|
||
ext_ptr = (char *) external_ext;
|
||
ext_end = ext_ptr + ext_count * external_ext_size;
|
||
for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++)
|
||
{
|
||
EXTR esym;
|
||
boolean skip;
|
||
bfd_vma value;
|
||
asection *section;
|
||
const char *name;
|
||
struct ecoff_link_hash_entry *h;
|
||
|
||
*sym_hash = NULL;
|
||
|
||
(*swap_ext_in) (abfd, (PTR) ext_ptr, &esym);
|
||
|
||
/* Skip debugging symbols. */
|
||
skip = false;
|
||
switch (esym.asym.st)
|
||
{
|
||
case stGlobal:
|
||
case stStatic:
|
||
case stLabel:
|
||
case stProc:
|
||
case stStaticProc:
|
||
break;
|
||
default:
|
||
skip = true;
|
||
break;
|
||
}
|
||
|
||
if (skip)
|
||
continue;
|
||
|
||
/* Get the information for this symbol. */
|
||
value = esym.asym.value;
|
||
switch (esym.asym.sc)
|
||
{
|
||
default:
|
||
case scNil:
|
||
case scRegister:
|
||
case scCdbLocal:
|
||
case scBits:
|
||
case scCdbSystem:
|
||
case scRegImage:
|
||
case scInfo:
|
||
case scUserStruct:
|
||
case scVar:
|
||
case scVarRegister:
|
||
case scVariant:
|
||
case scBasedVar:
|
||
case scXData:
|
||
case scPData:
|
||
section = NULL;
|
||
break;
|
||
case scText:
|
||
section = bfd_make_section_old_way (abfd, ".text");
|
||
value -= section->vma;
|
||
break;
|
||
case scData:
|
||
section = bfd_make_section_old_way (abfd, ".data");
|
||
value -= section->vma;
|
||
break;
|
||
case scBss:
|
||
section = bfd_make_section_old_way (abfd, ".bss");
|
||
value -= section->vma;
|
||
break;
|
||
case scAbs:
|
||
section = bfd_abs_section_ptr;
|
||
break;
|
||
case scUndefined:
|
||
section = bfd_und_section_ptr;
|
||
break;
|
||
case scSData:
|
||
section = bfd_make_section_old_way (abfd, ".sdata");
|
||
value -= section->vma;
|
||
break;
|
||
case scSBss:
|
||
section = bfd_make_section_old_way (abfd, ".sbss");
|
||
value -= section->vma;
|
||
break;
|
||
case scRData:
|
||
section = bfd_make_section_old_way (abfd, ".rdata");
|
||
value -= section->vma;
|
||
break;
|
||
case scCommon:
|
||
if (value > ecoff_data (abfd)->gp_size)
|
||
{
|
||
section = bfd_com_section_ptr;
|
||
break;
|
||
}
|
||
/* Fall through. */
|
||
case scSCommon:
|
||
if (ecoff_scom_section.name == NULL)
|
||
{
|
||
/* Initialize the small common section. */
|
||
ecoff_scom_section.name = SCOMMON;
|
||
ecoff_scom_section.flags = SEC_IS_COMMON;
|
||
ecoff_scom_section.output_section = &ecoff_scom_section;
|
||
ecoff_scom_section.symbol = &ecoff_scom_symbol;
|
||
ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr;
|
||
ecoff_scom_symbol.name = SCOMMON;
|
||
ecoff_scom_symbol.flags = BSF_SECTION_SYM;
|
||
ecoff_scom_symbol.section = &ecoff_scom_section;
|
||
ecoff_scom_symbol_ptr = &ecoff_scom_symbol;
|
||
}
|
||
section = &ecoff_scom_section;
|
||
break;
|
||
case scSUndefined:
|
||
section = bfd_und_section_ptr;
|
||
break;
|
||
case scInit:
|
||
section = bfd_make_section_old_way (abfd, ".init");
|
||
value -= section->vma;
|
||
break;
|
||
case scFini:
|
||
section = bfd_make_section_old_way (abfd, ".fini");
|
||
value -= section->vma;
|
||
break;
|
||
case scRConst:
|
||
section = bfd_make_section_old_way (abfd, ".rconst");
|
||
value -= section->vma;
|
||
break;
|
||
}
|
||
|
||
if (section == (asection *) NULL)
|
||
continue;
|
||
|
||
name = ssext + esym.asym.iss;
|
||
|
||
h = NULL;
|
||
if (! (_bfd_generic_link_add_one_symbol
|
||
(info, abfd, name,
|
||
esym.weakext ? BSF_WEAK : BSF_GLOBAL,
|
||
section, value, (const char *) NULL, true, true,
|
||
(struct bfd_link_hash_entry **) &h)))
|
||
return false;
|
||
|
||
*sym_hash = h;
|
||
|
||
/* If we are building an ECOFF hash table, save the external
|
||
symbol information. */
|
||
if (info->hash->creator->flavour == bfd_get_flavour (abfd))
|
||
{
|
||
if (h->abfd == (bfd *) NULL
|
||
|| (! bfd_is_und_section (section)
|
||
&& (! bfd_is_com_section (section)
|
||
|| (h->root.type != bfd_link_hash_defined
|
||
&& h->root.type != bfd_link_hash_defweak))))
|
||
{
|
||
h->abfd = abfd;
|
||
h->esym = esym;
|
||
}
|
||
|
||
/* Remember whether this symbol was small undefined. */
|
||
if (esym.asym.sc == scSUndefined)
|
||
h->small = 1;
|
||
|
||
/* If this symbol was ever small undefined, it needs to wind
|
||
up in a GP relative section. We can't control the
|
||
section of a defined symbol, but we can control the
|
||
section of a common symbol. This case is actually needed
|
||
on Ultrix 4.2 to handle the symbol cred in -lckrb. */
|
||
if (h->small
|
||
&& h->root.type == bfd_link_hash_common
|
||
&& strcmp (h->root.u.c.p->section->name, SCOMMON) != 0)
|
||
{
|
||
h->root.u.c.p->section = bfd_make_section_old_way (abfd,
|
||
SCOMMON);
|
||
h->root.u.c.p->section->flags = SEC_ALLOC;
|
||
if (h->esym.asym.sc == scCommon)
|
||
h->esym.asym.sc = scSCommon;
|
||
}
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* ECOFF final link routines. */
|
||
|
||
static boolean ecoff_final_link_debug_accumulate
|
||
PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *,
|
||
PTR handle));
|
||
static boolean ecoff_link_write_external
|
||
PARAMS ((struct ecoff_link_hash_entry *, PTR));
|
||
static boolean ecoff_indirect_link_order
|
||
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
||
struct bfd_link_order *));
|
||
static boolean ecoff_reloc_link_order
|
||
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
||
struct bfd_link_order *));
|
||
|
||
/* Structure used to pass information to ecoff_link_write_external. */
|
||
|
||
struct extsym_info
|
||
{
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
};
|
||
|
||
/* ECOFF final link routine. This looks through all the input BFDs
|
||
and gathers together all the debugging information, and then
|
||
processes all the link order information. This may cause it to
|
||
close and reopen some input BFDs; I'll see how bad this is. */
|
||
|
||
boolean
|
||
_bfd_ecoff_bfd_final_link (abfd, info)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
{
|
||
const struct ecoff_backend_data * const backend = ecoff_backend (abfd);
|
||
struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info;
|
||
HDRR *symhdr;
|
||
PTR handle;
|
||
register bfd *input_bfd;
|
||
asection *o;
|
||
struct bfd_link_order *p;
|
||
struct extsym_info einfo;
|
||
|
||
/* We accumulate the debugging information counts in the symbolic
|
||
header. */
|
||
symhdr = &debug->symbolic_header;
|
||
symhdr->vstamp = 0;
|
||
symhdr->ilineMax = 0;
|
||
symhdr->cbLine = 0;
|
||
symhdr->idnMax = 0;
|
||
symhdr->ipdMax = 0;
|
||
symhdr->isymMax = 0;
|
||
symhdr->ioptMax = 0;
|
||
symhdr->iauxMax = 0;
|
||
symhdr->issMax = 0;
|
||
symhdr->issExtMax = 0;
|
||
symhdr->ifdMax = 0;
|
||
symhdr->crfd = 0;
|
||
symhdr->iextMax = 0;
|
||
|
||
/* We accumulate the debugging information itself in the debug_info
|
||
structure. */
|
||
debug->line = NULL;
|
||
debug->external_dnr = NULL;
|
||
debug->external_pdr = NULL;
|
||
debug->external_sym = NULL;
|
||
debug->external_opt = NULL;
|
||
debug->external_aux = NULL;
|
||
debug->ss = NULL;
|
||
debug->ssext = debug->ssext_end = NULL;
|
||
debug->external_fdr = NULL;
|
||
debug->external_rfd = NULL;
|
||
debug->external_ext = debug->external_ext_end = NULL;
|
||
|
||
handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info);
|
||
if (handle == (PTR) NULL)
|
||
return false;
|
||
|
||
/* Accumulate the debugging symbols from each input BFD. */
|
||
for (input_bfd = info->input_bfds;
|
||
input_bfd != (bfd *) NULL;
|
||
input_bfd = input_bfd->link_next)
|
||
{
|
||
boolean ret;
|
||
|
||
if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour)
|
||
{
|
||
/* Abitrarily set the symbolic header vstamp to the vstamp
|
||
of the first object file in the link. */
|
||
if (symhdr->vstamp == 0)
|
||
symhdr->vstamp
|
||
= ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp;
|
||
ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info,
|
||
handle);
|
||
}
|
||
else
|
||
ret = bfd_ecoff_debug_accumulate_other (handle, abfd,
|
||
debug, &backend->debug_swap,
|
||
input_bfd, info);
|
||
if (! ret)
|
||
return false;
|
||
|
||
/* Combine the register masks. */
|
||
ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask;
|
||
ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask;
|
||
ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0];
|
||
ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1];
|
||
ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2];
|
||
ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3];
|
||
}
|
||
|
||
/* Write out the external symbols. */
|
||
einfo.abfd = abfd;
|
||
einfo.info = info;
|
||
ecoff_link_hash_traverse (ecoff_hash_table (info),
|
||
ecoff_link_write_external,
|
||
(PTR) &einfo);
|
||
|
||
if (info->relocateable)
|
||
{
|
||
/* We need to make a pass over the link_orders to count up the
|
||
number of relocations we will need to output, so that we know
|
||
how much space they will take up. */
|
||
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
|
||
{
|
||
o->reloc_count = 0;
|
||
for (p = o->link_order_head;
|
||
p != (struct bfd_link_order *) NULL;
|
||
p = p->next)
|
||
if (p->type == bfd_indirect_link_order)
|
||
o->reloc_count += p->u.indirect.section->reloc_count;
|
||
else if (p->type == bfd_section_reloc_link_order
|
||
|| p->type == bfd_symbol_reloc_link_order)
|
||
++o->reloc_count;
|
||
}
|
||
}
|
||
|
||
/* Compute the reloc and symbol file positions. */
|
||
ecoff_compute_reloc_file_positions (abfd);
|
||
|
||
/* Write out the debugging information. */
|
||
if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug,
|
||
&backend->debug_swap, info,
|
||
ecoff_data (abfd)->sym_filepos))
|
||
return false;
|
||
|
||
bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info);
|
||
|
||
if (info->relocateable)
|
||
{
|
||
/* Now reset the reloc_count field of the sections in the output
|
||
BFD to 0, so that we can use them to keep track of how many
|
||
relocs we have output thus far. */
|
||
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
|
||
o->reloc_count = 0;
|
||
}
|
||
|
||
/* Get a value for the GP register. */
|
||
if (ecoff_data (abfd)->gp == 0)
|
||
{
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
|
||
if (h != (struct bfd_link_hash_entry *) NULL
|
||
&& h->type == bfd_link_hash_defined)
|
||
ecoff_data (abfd)->gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
else if (info->relocateable)
|
||
{
|
||
bfd_vma lo;
|
||
|
||
/* Make up a value. */
|
||
lo = (bfd_vma) -1;
|
||
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
|
||
{
|
||
if (o->vma < lo
|
||
&& (strcmp (o->name, _SBSS) == 0
|
||
|| strcmp (o->name, _SDATA) == 0
|
||
|| strcmp (o->name, _LIT4) == 0
|
||
|| strcmp (o->name, _LIT8) == 0
|
||
|| strcmp (o->name, _LITA) == 0))
|
||
lo = o->vma;
|
||
}
|
||
ecoff_data (abfd)->gp = lo + 0x8000;
|
||
}
|
||
else
|
||
{
|
||
/* If the relocate_section function needs to do a reloc
|
||
involving the GP value, it should make a reloc_dangerous
|
||
callback to warn that GP is not defined. */
|
||
}
|
||
}
|
||
|
||
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
|
||
{
|
||
for (p = o->link_order_head;
|
||
p != (struct bfd_link_order *) NULL;
|
||
p = p->next)
|
||
{
|
||
if (p->type == bfd_indirect_link_order
|
||
&& (bfd_get_flavour (p->u.indirect.section->owner)
|
||
== bfd_target_ecoff_flavour))
|
||
{
|
||
if (! ecoff_indirect_link_order (abfd, info, o, p))
|
||
return false;
|
||
}
|
||
else if (p->type == bfd_section_reloc_link_order
|
||
|| p->type == bfd_symbol_reloc_link_order)
|
||
{
|
||
if (! ecoff_reloc_link_order (abfd, info, o, p))
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
if (! _bfd_default_link_order (abfd, info, o, p))
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
|
||
bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax;
|
||
|
||
ecoff_data (abfd)->linker = true;
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Accumulate the debugging information for an input BFD into the
|
||
output BFD. This must read in the symbolic information of the
|
||
input BFD. */
|
||
|
||
static boolean
|
||
ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle)
|
||
bfd *output_bfd;
|
||
bfd *input_bfd;
|
||
struct bfd_link_info *info;
|
||
PTR handle;
|
||
{
|
||
struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info;
|
||
const struct ecoff_debug_swap * const swap =
|
||
&ecoff_backend (input_bfd)->debug_swap;
|
||
HDRR *symhdr = &debug->symbolic_header;
|
||
boolean ret;
|
||
|
||
#define READ(ptr, offset, count, size, type) \
|
||
if (symhdr->count == 0) \
|
||
debug->ptr = NULL; \
|
||
else \
|
||
{ \
|
||
debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \
|
||
if (debug->ptr == NULL) \
|
||
{ \
|
||
ret = false; \
|
||
goto return_something; \
|
||
} \
|
||
if ((bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) \
|
||
!= 0) \
|
||
|| (bfd_read (debug->ptr, size, symhdr->count, \
|
||
input_bfd) != size * symhdr->count)) \
|
||
{ \
|
||
ret = false; \
|
||
goto return_something; \
|
||
} \
|
||
}
|
||
|
||
/* If raw_syments is not NULL, then the data was already by read by
|
||
_bfd_ecoff_slurp_symbolic_info. */
|
||
if (ecoff_data (input_bfd)->raw_syments == NULL)
|
||
{
|
||
READ (line, cbLineOffset, cbLine, sizeof (unsigned char),
|
||
unsigned char *);
|
||
READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
|
||
READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
|
||
READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
|
||
READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
|
||
READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
|
||
union aux_ext *);
|
||
READ (ss, cbSsOffset, issMax, sizeof (char), char *);
|
||
READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
|
||
READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
|
||
}
|
||
#undef READ
|
||
|
||
/* We do not read the external strings or the external symbols. */
|
||
|
||
ret = (bfd_ecoff_debug_accumulate
|
||
(handle, output_bfd, &ecoff_data (output_bfd)->debug_info,
|
||
&ecoff_backend (output_bfd)->debug_swap,
|
||
input_bfd, debug, swap, info));
|
||
|
||
return_something:
|
||
if (ecoff_data (input_bfd)->raw_syments == NULL)
|
||
{
|
||
if (debug->line != NULL)
|
||
free (debug->line);
|
||
if (debug->external_dnr != NULL)
|
||
free (debug->external_dnr);
|
||
if (debug->external_pdr != NULL)
|
||
free (debug->external_pdr);
|
||
if (debug->external_sym != NULL)
|
||
free (debug->external_sym);
|
||
if (debug->external_opt != NULL)
|
||
free (debug->external_opt);
|
||
if (debug->external_aux != NULL)
|
||
free (debug->external_aux);
|
||
if (debug->ss != NULL)
|
||
free (debug->ss);
|
||
if (debug->external_fdr != NULL)
|
||
free (debug->external_fdr);
|
||
if (debug->external_rfd != NULL)
|
||
free (debug->external_rfd);
|
||
|
||
/* Make sure we don't accidentally follow one of these pointers
|
||
into freed memory. */
|
||
debug->line = NULL;
|
||
debug->external_dnr = NULL;
|
||
debug->external_pdr = NULL;
|
||
debug->external_sym = NULL;
|
||
debug->external_opt = NULL;
|
||
debug->external_aux = NULL;
|
||
debug->ss = NULL;
|
||
debug->external_fdr = NULL;
|
||
debug->external_rfd = NULL;
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/* Put out information for an external symbol. These come only from
|
||
the hash table. */
|
||
|
||
static boolean
|
||
ecoff_link_write_external (h, data)
|
||
struct ecoff_link_hash_entry *h;
|
||
PTR data;
|
||
{
|
||
struct extsym_info *einfo = (struct extsym_info *) data;
|
||
bfd *output_bfd = einfo->abfd;
|
||
boolean strip;
|
||
|
||
/* We need to check if this symbol is being stripped. */
|
||
if (h->root.type == bfd_link_hash_undefined
|
||
|| h->root.type == bfd_link_hash_undefweak)
|
||
strip = false;
|
||
else if (einfo->info->strip == strip_all
|
||
|| (einfo->info->strip == strip_some
|
||
&& bfd_hash_lookup (einfo->info->keep_hash,
|
||
h->root.root.string,
|
||
false, false) == NULL))
|
||
strip = true;
|
||
else
|
||
strip = false;
|
||
|
||
if (strip || h->written)
|
||
return true;
|
||
|
||
if (h->abfd == (bfd *) NULL)
|
||
{
|
||
h->esym.jmptbl = 0;
|
||
h->esym.cobol_main = 0;
|
||
h->esym.weakext = 0;
|
||
h->esym.reserved = 0;
|
||
h->esym.ifd = ifdNil;
|
||
h->esym.asym.value = 0;
|
||
h->esym.asym.st = stGlobal;
|
||
|
||
if (h->root.type != bfd_link_hash_defined
|
||
&& h->root.type != bfd_link_hash_defweak)
|
||
h->esym.asym.sc = scAbs;
|
||
else
|
||
{
|
||
asection *output_section;
|
||
const char *name;
|
||
|
||
output_section = h->root.u.def.section->output_section;
|
||
name = bfd_section_name (output_section->owner, output_section);
|
||
|
||
if (strcmp (name, _TEXT) == 0)
|
||
h->esym.asym.sc = scText;
|
||
else if (strcmp (name, _DATA) == 0)
|
||
h->esym.asym.sc = scData;
|
||
else if (strcmp (name, _SDATA) == 0)
|
||
h->esym.asym.sc = scSData;
|
||
else if (strcmp (name, _RDATA) == 0)
|
||
h->esym.asym.sc = scRData;
|
||
else if (strcmp (name, _BSS) == 0)
|
||
h->esym.asym.sc = scBss;
|
||
else if (strcmp (name, _SBSS) == 0)
|
||
h->esym.asym.sc = scSBss;
|
||
else if (strcmp (name, _INIT) == 0)
|
||
h->esym.asym.sc = scInit;
|
||
else if (strcmp (name, _FINI) == 0)
|
||
h->esym.asym.sc = scFini;
|
||
else if (strcmp (name, _PDATA) == 0)
|
||
h->esym.asym.sc = scPData;
|
||
else if (strcmp (name, _XDATA) == 0)
|
||
h->esym.asym.sc = scXData;
|
||
else if (strcmp (name, _RCONST) == 0)
|
||
h->esym.asym.sc = scRConst;
|
||
else
|
||
h->esym.asym.sc = scAbs;
|
||
}
|
||
|
||
h->esym.asym.reserved = 0;
|
||
h->esym.asym.index = indexNil;
|
||
}
|
||
else if (h->esym.ifd != -1)
|
||
{
|
||
struct ecoff_debug_info *debug;
|
||
|
||
/* Adjust the FDR index for the symbol by that used for the
|
||
input BFD. */
|
||
debug = &ecoff_data (h->abfd)->debug_info;
|
||
BFD_ASSERT (h->esym.ifd >= 0
|
||
&& h->esym.ifd < debug->symbolic_header.ifdMax);
|
||
h->esym.ifd = debug->ifdmap[h->esym.ifd];
|
||
}
|
||
|
||
switch (h->root.type)
|
||
{
|
||
default:
|
||
case bfd_link_hash_new:
|
||
abort ();
|
||
case bfd_link_hash_undefined:
|
||
case bfd_link_hash_undefweak:
|
||
if (h->esym.asym.sc != scUndefined
|
||
&& h->esym.asym.sc != scSUndefined)
|
||
h->esym.asym.sc = scUndefined;
|
||
break;
|
||
case bfd_link_hash_defined:
|
||
case bfd_link_hash_defweak:
|
||
if (h->esym.asym.sc == scUndefined
|
||
|| h->esym.asym.sc == scSUndefined)
|
||
h->esym.asym.sc = scAbs;
|
||
else if (h->esym.asym.sc == scCommon)
|
||
h->esym.asym.sc = scBss;
|
||
else if (h->esym.asym.sc == scSCommon)
|
||
h->esym.asym.sc = scSBss;
|
||
h->esym.asym.value = (h->root.u.def.value
|
||
+ h->root.u.def.section->output_section->vma
|
||
+ h->root.u.def.section->output_offset);
|
||
break;
|
||
case bfd_link_hash_common:
|
||
if (h->esym.asym.sc != scCommon
|
||
&& h->esym.asym.sc != scSCommon)
|
||
h->esym.asym.sc = scCommon;
|
||
h->esym.asym.value = h->root.u.c.size;
|
||
break;
|
||
case bfd_link_hash_indirect:
|
||
case bfd_link_hash_warning:
|
||
/* FIXME: Ignore these for now. The circumstances under which
|
||
they should be written out are not clear to me. */
|
||
return true;
|
||
}
|
||
|
||
/* bfd_ecoff_debug_one_external uses iextMax to keep track of the
|
||
symbol number. */
|
||
h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax;
|
||
h->written = 1;
|
||
|
||
return (bfd_ecoff_debug_one_external
|
||
(output_bfd, &ecoff_data (output_bfd)->debug_info,
|
||
&ecoff_backend (output_bfd)->debug_swap, h->root.root.string,
|
||
&h->esym));
|
||
}
|
||
|
||
/* Relocate and write an ECOFF section into an ECOFF output file. */
|
||
|
||
static boolean
|
||
ecoff_indirect_link_order (output_bfd, info, output_section, link_order)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
asection *output_section;
|
||
struct bfd_link_order *link_order;
|
||
{
|
||
asection *input_section;
|
||
bfd *input_bfd;
|
||
struct ecoff_section_tdata *section_tdata;
|
||
bfd_size_type raw_size;
|
||
bfd_size_type cooked_size;
|
||
bfd_byte *contents = NULL;
|
||
bfd_size_type external_reloc_size;
|
||
bfd_size_type external_relocs_size;
|
||
PTR external_relocs = NULL;
|
||
|
||
BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0);
|
||
|
||
if (link_order->size == 0)
|
||
return true;
|
||
|
||
input_section = link_order->u.indirect.section;
|
||
input_bfd = input_section->owner;
|
||
section_tdata = ecoff_section_data (input_bfd, input_section);
|
||
|
||
raw_size = input_section->_raw_size;
|
||
cooked_size = input_section->_cooked_size;
|
||
if (cooked_size == 0)
|
||
cooked_size = raw_size;
|
||
|
||
BFD_ASSERT (input_section->output_section == output_section);
|
||
BFD_ASSERT (input_section->output_offset == link_order->offset);
|
||
BFD_ASSERT (cooked_size == link_order->size);
|
||
|
||
/* Get the section contents. We allocate memory for the larger of
|
||
the size before relocating and the size after relocating. */
|
||
contents = (bfd_byte *) bfd_malloc (raw_size >= cooked_size
|
||
? (size_t) raw_size
|
||
: (size_t) cooked_size);
|
||
if (contents == NULL && raw_size != 0)
|
||
goto error_return;
|
||
|
||
/* If we are relaxing, the contents may have already been read into
|
||
memory, in which case we copy them into our new buffer. We don't
|
||
simply reuse the old buffer in case cooked_size > raw_size. */
|
||
if (section_tdata != (struct ecoff_section_tdata *) NULL
|
||
&& section_tdata->contents != (bfd_byte *) NULL)
|
||
memcpy (contents, section_tdata->contents, (size_t) raw_size);
|
||
else
|
||
{
|
||
if (! bfd_get_section_contents (input_bfd, input_section,
|
||
(PTR) contents,
|
||
(file_ptr) 0, raw_size))
|
||
goto error_return;
|
||
}
|
||
|
||
/* Get the relocs. If we are relaxing MIPS code, they will already
|
||
have been read in. Otherwise, we read them in now. */
|
||
external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size;
|
||
external_relocs_size = external_reloc_size * input_section->reloc_count;
|
||
|
||
if (section_tdata != (struct ecoff_section_tdata *) NULL
|
||
&& section_tdata->external_relocs != NULL)
|
||
external_relocs = section_tdata->external_relocs;
|
||
else
|
||
{
|
||
external_relocs = (PTR) bfd_malloc ((size_t) external_relocs_size);
|
||
if (external_relocs == NULL && external_relocs_size != 0)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
|
||
|| (bfd_read (external_relocs, 1, external_relocs_size, input_bfd)
|
||
!= external_relocs_size))
|
||
goto error_return;
|
||
}
|
||
|
||
/* Relocate the section contents. */
|
||
if (! ((*ecoff_backend (input_bfd)->relocate_section)
|
||
(output_bfd, info, input_bfd, input_section, contents,
|
||
external_relocs)))
|
||
goto error_return;
|
||
|
||
/* Write out the relocated section. */
|
||
if (! bfd_set_section_contents (output_bfd,
|
||
output_section,
|
||
(PTR) contents,
|
||
input_section->output_offset,
|
||
cooked_size))
|
||
goto error_return;
|
||
|
||
/* If we are producing relocateable output, the relocs were
|
||
modified, and we write them out now. We use the reloc_count
|
||
field of output_section to keep track of the number of relocs we
|
||
have output so far. */
|
||
if (info->relocateable)
|
||
{
|
||
if (bfd_seek (output_bfd,
|
||
(output_section->rel_filepos +
|
||
output_section->reloc_count * external_reloc_size),
|
||
SEEK_SET) != 0
|
||
|| (bfd_write (external_relocs, 1, external_relocs_size, output_bfd)
|
||
!= external_relocs_size))
|
||
goto error_return;
|
||
output_section->reloc_count += input_section->reloc_count;
|
||
}
|
||
|
||
if (contents != NULL)
|
||
free (contents);
|
||
if (external_relocs != NULL && section_tdata == NULL)
|
||
free (external_relocs);
|
||
return true;
|
||
|
||
error_return:
|
||
if (contents != NULL)
|
||
free (contents);
|
||
if (external_relocs != NULL && section_tdata == NULL)
|
||
free (external_relocs);
|
||
return false;
|
||
}
|
||
|
||
/* Generate a reloc when linking an ECOFF file. This is a reloc
|
||
requested by the linker, and does come from any input file. This
|
||
is used to build constructor and destructor tables when linking
|
||
with -Ur. */
|
||
|
||
static boolean
|
||
ecoff_reloc_link_order (output_bfd, info, output_section, link_order)
|
||
bfd *output_bfd;
|
||
struct bfd_link_info *info;
|
||
asection *output_section;
|
||
struct bfd_link_order *link_order;
|
||
{
|
||
enum bfd_link_order_type type;
|
||
asection *section;
|
||
bfd_vma addend;
|
||
arelent rel;
|
||
struct internal_reloc in;
|
||
bfd_size_type external_reloc_size;
|
||
bfd_byte *rbuf;
|
||
boolean ok;
|
||
|
||
type = link_order->type;
|
||
section = NULL;
|
||
addend = link_order->u.reloc.p->addend;
|
||
|
||
/* We set up an arelent to pass to the backend adjust_reloc_out
|
||
routine. */
|
||
rel.address = link_order->offset;
|
||
|
||
rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc);
|
||
if (rel.howto == 0)
|
||
{
|
||
bfd_set_error (bfd_error_bad_value);
|
||
return false;
|
||
}
|
||
|
||
if (type == bfd_section_reloc_link_order)
|
||
{
|
||
section = link_order->u.reloc.p->u.section;
|
||
rel.sym_ptr_ptr = section->symbol_ptr_ptr;
|
||
}
|
||
else
|
||
{
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
/* Treat a reloc against a defined symbol as though it were
|
||
actually against the section. */
|
||
h = bfd_wrapped_link_hash_lookup (output_bfd, info,
|
||
link_order->u.reloc.p->u.name,
|
||
false, false, false);
|
||
if (h != NULL
|
||
&& (h->type == bfd_link_hash_defined
|
||
|| h->type == bfd_link_hash_defweak))
|
||
{
|
||
type = bfd_section_reloc_link_order;
|
||
section = h->u.def.section->output_section;
|
||
/* It seems that we ought to add the symbol value to the
|
||
addend here, but in practice it has already been added
|
||
because it was passed to constructor_callback. */
|
||
addend += section->vma + h->u.def.section->output_offset;
|
||
}
|
||
else
|
||
{
|
||
/* We can't set up a reloc against a symbol correctly,
|
||
because we have no asymbol structure. Currently no
|
||
adjust_reloc_out routine cares. */
|
||
rel.sym_ptr_ptr = (asymbol **) NULL;
|
||
}
|
||
}
|
||
|
||
/* All ECOFF relocs are in-place. Put the addend into the object
|
||
file. */
|
||
|
||
BFD_ASSERT (rel.howto->partial_inplace);
|
||
if (addend != 0)
|
||
{
|
||
bfd_size_type size;
|
||
bfd_reloc_status_type rstat;
|
||
bfd_byte *buf;
|
||
boolean ok;
|
||
|
||
size = bfd_get_reloc_size (rel.howto);
|
||
buf = (bfd_byte *) bfd_zmalloc (size);
|
||
if (buf == (bfd_byte *) NULL)
|
||
return false;
|
||
rstat = _bfd_relocate_contents (rel.howto, output_bfd, addend, buf);
|
||
switch (rstat)
|
||
{
|
||
case bfd_reloc_ok:
|
||
break;
|
||
default:
|
||
case bfd_reloc_outofrange:
|
||
abort ();
|
||
case bfd_reloc_overflow:
|
||
if (! ((*info->callbacks->reloc_overflow)
|
||
(info,
|
||
(link_order->type == bfd_section_reloc_link_order
|
||
? bfd_section_name (output_bfd, section)
|
||
: link_order->u.reloc.p->u.name),
|
||
rel.howto->name, addend, (bfd *) NULL,
|
||
(asection *) NULL, (bfd_vma) 0)))
|
||
{
|
||
free (buf);
|
||
return false;
|
||
}
|
||
break;
|
||
}
|
||
ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf,
|
||
(file_ptr) link_order->offset, size);
|
||
free (buf);
|
||
if (! ok)
|
||
return false;
|
||
}
|
||
|
||
rel.addend = 0;
|
||
|
||
/* Move the information into a internal_reloc structure. */
|
||
in.r_vaddr = (rel.address
|
||
+ bfd_get_section_vma (output_bfd, output_section));
|
||
in.r_type = rel.howto->type;
|
||
|
||
if (type == bfd_symbol_reloc_link_order)
|
||
{
|
||
struct ecoff_link_hash_entry *h;
|
||
|
||
h = ((struct ecoff_link_hash_entry *)
|
||
bfd_wrapped_link_hash_lookup (output_bfd, info,
|
||
link_order->u.reloc.p->u.name,
|
||
false, false, true));
|
||
if (h != (struct ecoff_link_hash_entry *) NULL
|
||
&& h->indx != -1)
|
||
in.r_symndx = h->indx;
|
||
else
|
||
{
|
||
if (! ((*info->callbacks->unattached_reloc)
|
||
(info, link_order->u.reloc.p->u.name, (bfd *) NULL,
|
||
(asection *) NULL, (bfd_vma) 0)))
|
||
return false;
|
||
in.r_symndx = 0;
|
||
}
|
||
in.r_extern = 1;
|
||
}
|
||
else
|
||
{
|
||
CONST char *name;
|
||
|
||
name = bfd_get_section_name (output_bfd, section);
|
||
if (strcmp (name, ".text") == 0)
|
||
in.r_symndx = RELOC_SECTION_TEXT;
|
||
else if (strcmp (name, ".rdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_RDATA;
|
||
else if (strcmp (name, ".data") == 0)
|
||
in.r_symndx = RELOC_SECTION_DATA;
|
||
else if (strcmp (name, ".sdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_SDATA;
|
||
else if (strcmp (name, ".sbss") == 0)
|
||
in.r_symndx = RELOC_SECTION_SBSS;
|
||
else if (strcmp (name, ".bss") == 0)
|
||
in.r_symndx = RELOC_SECTION_BSS;
|
||
else if (strcmp (name, ".init") == 0)
|
||
in.r_symndx = RELOC_SECTION_INIT;
|
||
else if (strcmp (name, ".lit8") == 0)
|
||
in.r_symndx = RELOC_SECTION_LIT8;
|
||
else if (strcmp (name, ".lit4") == 0)
|
||
in.r_symndx = RELOC_SECTION_LIT4;
|
||
else if (strcmp (name, ".xdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_XDATA;
|
||
else if (strcmp (name, ".pdata") == 0)
|
||
in.r_symndx = RELOC_SECTION_PDATA;
|
||
else if (strcmp (name, ".fini") == 0)
|
||
in.r_symndx = RELOC_SECTION_FINI;
|
||
else if (strcmp (name, ".lita") == 0)
|
||
in.r_symndx = RELOC_SECTION_LITA;
|
||
else if (strcmp (name, "*ABS*") == 0)
|
||
in.r_symndx = RELOC_SECTION_ABS;
|
||
else if (strcmp (name, ".rconst") == 0)
|
||
in.r_symndx = RELOC_SECTION_RCONST;
|
||
else
|
||
abort ();
|
||
in.r_extern = 0;
|
||
}
|
||
|
||
/* Let the BFD backend adjust the reloc. */
|
||
(*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in);
|
||
|
||
/* Get some memory and swap out the reloc. */
|
||
external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size;
|
||
rbuf = (bfd_byte *) bfd_malloc ((size_t) external_reloc_size);
|
||
if (rbuf == (bfd_byte *) NULL)
|
||
return false;
|
||
|
||
(*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (PTR) rbuf);
|
||
|
||
ok = (bfd_seek (output_bfd,
|
||
(output_section->rel_filepos +
|
||
output_section->reloc_count * external_reloc_size),
|
||
SEEK_SET) == 0
|
||
&& (bfd_write ((PTR) rbuf, 1, external_reloc_size, output_bfd)
|
||
== external_reloc_size));
|
||
|
||
if (ok)
|
||
++output_section->reloc_count;
|
||
|
||
free (rbuf);
|
||
|
||
return ok;
|
||
}
|