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-rw-r--r--bfd/coffgen.c2474
1 files changed, 0 insertions, 2474 deletions
diff --git a/bfd/coffgen.c b/bfd/coffgen.c
deleted file mode 100644
index bd2d158ba5f..00000000000
--- a/bfd/coffgen.c
+++ /dev/null
@@ -1,2474 +0,0 @@
-/* Support for the generic parts of COFF, for BFD.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001
- Free Software Foundation, Inc.
- Written by Cygnus Support.
-
-This file is part of BFD, the Binary File Descriptor library.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* Most of this hacked by Steve Chamberlain, sac@cygnus.com.
- Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */
-
-/* This file contains COFF code that is not dependent on any
- particular COFF target. There is only one version of this file in
- libbfd.a, so no target specific code may be put in here. Or, to
- put it another way,
-
- ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE **********
-
- If you need to add some target specific behaviour, add a new hook
- function to bfd_coff_backend_data.
-
- Some of these functions are also called by the ECOFF routines.
- Those functions may not use any COFF specific information, such as
- coff_data (abfd). */
-
-#include "bfd.h"
-#include "sysdep.h"
-#include "libbfd.h"
-#include "coff/internal.h"
-#include "libcoff.h"
-
-static void coff_fix_symbol_name
- PARAMS ((bfd *, asymbol *, combined_entry_type *, bfd_size_type *,
- asection **, bfd_size_type *));
-static boolean coff_write_symbol
- PARAMS ((bfd *, asymbol *, combined_entry_type *, bfd_vma *,
- bfd_size_type *, asection **, bfd_size_type *));
-static boolean coff_write_alien_symbol
- PARAMS ((bfd *, asymbol *, bfd_vma *, bfd_size_type *,
- asection **, bfd_size_type *));
-static boolean coff_write_native_symbol
- PARAMS ((bfd *, coff_symbol_type *, bfd_vma *, bfd_size_type *,
- asection **, bfd_size_type *));
-static void coff_pointerize_aux
- PARAMS ((bfd *, combined_entry_type *, combined_entry_type *,
- unsigned int, combined_entry_type *));
-static boolean make_a_section_from_file
- PARAMS ((bfd *, struct internal_scnhdr *, unsigned int));
-static const bfd_target *coff_real_object_p
- PARAMS ((bfd *, unsigned, struct internal_filehdr *,
- struct internal_aouthdr *));
-static void fixup_symbol_value
- PARAMS ((bfd *, coff_symbol_type *, struct internal_syment *));
-static char *build_debug_section
- PARAMS ((bfd *));
-static char *copy_name
- PARAMS ((bfd *, char *, int));
-
-#define STRING_SIZE_SIZE (4)
-
-/* Take a section header read from a coff file (in HOST byte order),
- and make a BFD "section" out of it. This is used by ECOFF. */
-static boolean
-make_a_section_from_file (abfd, hdr, target_index)
- bfd *abfd;
- struct internal_scnhdr *hdr;
- unsigned int target_index;
-{
- asection *return_section;
- char *name;
- boolean result = true;
- flagword flags;
-
- name = NULL;
-
- /* Handle long section names as in PE. */
- if (bfd_coff_long_section_names (abfd)
- && hdr->s_name[0] == '/')
- {
- char buf[SCNNMLEN];
- long strindex;
- char *p;
- const char *strings;
-
- memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1);
- buf[SCNNMLEN - 1] = '\0';
- strindex = strtol (buf, &p, 10);
- if (*p == '\0' && strindex >= 0)
- {
- strings = _bfd_coff_read_string_table (abfd);
- if (strings == NULL)
- return false;
- /* FIXME: For extra safety, we should make sure that
- strindex does not run us past the end, but right now we
- don't know the length of the string table. */
- strings += strindex;
- name = bfd_alloc (abfd, strlen (strings) + 1);
- if (name == NULL)
- return false;
- strcpy (name, strings);
- }
- }
-
- if (name == NULL)
- {
- /* Assorted wastage to null-terminate the name, thanks AT&T! */
- name = bfd_alloc (abfd, sizeof (hdr->s_name) + 1);
- if (name == NULL)
- return false;
- strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
- name[sizeof (hdr->s_name)] = 0;
- }
-
- return_section = bfd_make_section_anyway (abfd, name);
- if (return_section == NULL)
- return false;
-
- return_section->vma = hdr->s_vaddr;
- return_section->lma = hdr->s_paddr;
- return_section->_raw_size = hdr->s_size;
- return_section->filepos = hdr->s_scnptr;
- return_section->rel_filepos = hdr->s_relptr;
- return_section->reloc_count = hdr->s_nreloc;
-
- bfd_coff_set_alignment_hook (abfd, return_section, hdr);
-
- return_section->line_filepos = hdr->s_lnnoptr;
-
- return_section->lineno_count = hdr->s_nlnno;
- return_section->userdata = NULL;
- return_section->next = (asection *) NULL;
- return_section->target_index = target_index;
-
- if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section,
- & flags))
- result = false;
-
- return_section->flags = flags;
-
- /* At least on i386-coff, the line number count for a shared library
- section must be ignored. */
- if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0)
- return_section->lineno_count = 0;
-
- if (hdr->s_nreloc != 0)
- return_section->flags |= SEC_RELOC;
- /* FIXME: should this check 'hdr->s_size > 0' */
- if (hdr->s_scnptr != 0)
- return_section->flags |= SEC_HAS_CONTENTS;
-
- return result;
-}
-
-/* Read in a COFF object and make it into a BFD. This is used by
- ECOFF as well. */
-
-static const bfd_target *
-coff_real_object_p (abfd, nscns, internal_f, internal_a)
- bfd *abfd;
- unsigned nscns;
- struct internal_filehdr *internal_f;
- struct internal_aouthdr *internal_a;
-{
- flagword oflags = abfd->flags;
- bfd_vma ostart = bfd_get_start_address (abfd);
- PTR tdata;
- size_t readsize; /* length of file_info */
- unsigned int scnhsz;
- char *external_sections;
-
- if (!(internal_f->f_flags & F_RELFLG))
- abfd->flags |= HAS_RELOC;
- if ((internal_f->f_flags & F_EXEC))
- abfd->flags |= EXEC_P;
- if (!(internal_f->f_flags & F_LNNO))
- abfd->flags |= HAS_LINENO;
- if (!(internal_f->f_flags & F_LSYMS))
- abfd->flags |= HAS_LOCALS;
-
- /* FIXME: How can we set D_PAGED correctly? */
- if ((internal_f->f_flags & F_EXEC) != 0)
- abfd->flags |= D_PAGED;
-
- bfd_get_symcount (abfd) = internal_f->f_nsyms;
- if (internal_f->f_nsyms)
- abfd->flags |= HAS_SYMS;
-
- if (internal_a != (struct internal_aouthdr *) NULL)
- bfd_get_start_address (abfd) = internal_a->entry;
- else
- bfd_get_start_address (abfd) = 0;
-
- /* Set up the tdata area. ECOFF uses its own routine, and overrides
- abfd->flags. */
- tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a);
- if (tdata == NULL)
- return 0;
-
- scnhsz = bfd_coff_scnhsz (abfd);
- readsize = nscns * scnhsz;
- external_sections = (char *) bfd_alloc (abfd, readsize);
- if (!external_sections)
- goto fail;
-
- if (bfd_read ((PTR) external_sections, 1, readsize, abfd) != readsize)
- goto fail;
-
- /* Set the arch/mach *before* swapping in sections; section header swapping
- may depend on arch/mach info. */
- if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false)
- goto fail;
-
- /* Now copy data as required; construct all asections etc */
- if (nscns != 0)
- {
- unsigned int i;
- for (i = 0; i < nscns; i++)
- {
- struct internal_scnhdr tmp;
- bfd_coff_swap_scnhdr_in (abfd,
- (PTR) (external_sections + i * scnhsz),
- (PTR) & tmp);
- if (! make_a_section_from_file (abfd, &tmp, i + 1))
- goto fail;
- }
- }
-
- /* make_abs_section (abfd); */
-
- return abfd->xvec;
-
- fail:
- bfd_release (abfd, tdata);
- abfd->flags = oflags;
- bfd_get_start_address (abfd) = ostart;
- return (const bfd_target *) NULL;
-}
-
-/* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is
- not a COFF file. This is also used by ECOFF. */
-
-const bfd_target *
-coff_object_p (abfd)
- bfd *abfd;
-{
- unsigned int filhsz;
- unsigned int aoutsz;
- int nscns;
- PTR filehdr;
- struct internal_filehdr internal_f;
- struct internal_aouthdr internal_a;
-
- /* figure out how much to read */
- filhsz = bfd_coff_filhsz (abfd);
- aoutsz = bfd_coff_aoutsz (abfd);
-
- filehdr = bfd_alloc (abfd, filhsz);
- if (filehdr == NULL)
- return 0;
- if (bfd_read (filehdr, 1, filhsz, abfd) != filhsz)
- {
- if (bfd_get_error () != bfd_error_system_call)
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f);
- bfd_release (abfd, filehdr);
-
- if (bfd_coff_bad_format_hook (abfd, &internal_f) == false)
- {
- bfd_set_error (bfd_error_wrong_format);
- return 0;
- }
- nscns = internal_f.f_nscns;
-
- if (internal_f.f_opthdr)
- {
- PTR opthdr;
-
- opthdr = bfd_alloc (abfd, aoutsz);
- if (opthdr == NULL)
- return 0;;
- if (bfd_read (opthdr, 1, internal_f.f_opthdr, abfd)
- != internal_f.f_opthdr)
- {
- return 0;
- }
- bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) &internal_a);
- }
-
- return coff_real_object_p (abfd, nscns, &internal_f,
- (internal_f.f_opthdr != 0
- ? &internal_a
- : (struct internal_aouthdr *) NULL));
-}
-
-/* Get the BFD section from a COFF symbol section number. */
-
-asection *
-coff_section_from_bfd_index (abfd, index)
- bfd *abfd;
- int index;
-{
- struct sec *answer = abfd->sections;
-
- if (index == N_ABS)
- return bfd_abs_section_ptr;
- if (index == N_UNDEF)
- return bfd_und_section_ptr;
- if (index == N_DEBUG)
- return bfd_abs_section_ptr;
-
- while (answer)
- {
- if (answer->target_index == index)
- return answer;
- answer = answer->next;
- }
-
- /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a
- has a bad symbol table in biglitpow.o. */
- return bfd_und_section_ptr;
-}
-
-/* Get the upper bound of a COFF symbol table. */
-
-long
-coff_get_symtab_upper_bound (abfd)
- bfd *abfd;
-{
- if (!bfd_coff_slurp_symbol_table (abfd))
- return -1;
-
- return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *));
-}
-
-/* Canonicalize a COFF symbol table. */
-
-long
-coff_get_symtab (abfd, alocation)
- bfd *abfd;
- asymbol **alocation;
-{
- unsigned int counter;
- coff_symbol_type *symbase;
- coff_symbol_type **location = (coff_symbol_type **) alocation;
-
- if (!bfd_coff_slurp_symbol_table (abfd))
- return -1;
-
- symbase = obj_symbols (abfd);
- counter = bfd_get_symcount (abfd);
- while (counter-- > 0)
- *location++ = symbase++;
-
- *location = NULL;
-
- return bfd_get_symcount (abfd);
-}
-
-/* Get the name of a symbol. The caller must pass in a buffer of size
- >= SYMNMLEN + 1. */
-
-const char *
-_bfd_coff_internal_syment_name (abfd, sym, buf)
- bfd *abfd;
- const struct internal_syment *sym;
- char *buf;
-{
- /* FIXME: It's not clear this will work correctly if sizeof
- (_n_zeroes) != 4. */
- if (sym->_n._n_n._n_zeroes != 0
- || sym->_n._n_n._n_offset == 0)
- {
- memcpy (buf, sym->_n._n_name, SYMNMLEN);
- buf[SYMNMLEN] = '\0';
- return buf;
- }
- else
- {
- const char *strings;
-
- BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE);
- strings = obj_coff_strings (abfd);
- if (strings == NULL)
- {
- strings = _bfd_coff_read_string_table (abfd);
- if (strings == NULL)
- return NULL;
- }
- return strings + sym->_n._n_n._n_offset;
- }
-}
-
-/* Read in and swap the relocs. This returns a buffer holding the
- relocs for section SEC in file ABFD. If CACHE is true and
- INTERNAL_RELOCS is NULL, the relocs read in will be saved in case
- the function is called again. If EXTERNAL_RELOCS is not NULL, it
- is a buffer large enough to hold the unswapped relocs. If
- INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold
- the swapped relocs. If REQUIRE_INTERNAL is true, then the return
- value must be INTERNAL_RELOCS. The function returns NULL on error. */
-
-struct internal_reloc *
-_bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs,
- require_internal, internal_relocs)
- bfd *abfd;
- asection *sec;
- boolean cache;
- bfd_byte *external_relocs;
- boolean require_internal;
- struct internal_reloc *internal_relocs;
-{
- bfd_size_type relsz;
- bfd_byte *free_external = NULL;
- struct internal_reloc *free_internal = NULL;
- bfd_byte *erel;
- bfd_byte *erel_end;
- struct internal_reloc *irel;
-
- if (coff_section_data (abfd, sec) != NULL
- && coff_section_data (abfd, sec)->relocs != NULL)
- {
- if (! require_internal)
- return coff_section_data (abfd, sec)->relocs;
- memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs,
- sec->reloc_count * sizeof (struct internal_reloc));
- return internal_relocs;
- }
-
- relsz = bfd_coff_relsz (abfd);
-
- if (external_relocs == NULL)
- {
- free_external = (bfd_byte *) bfd_malloc (sec->reloc_count * relsz);
- if (free_external == NULL && sec->reloc_count > 0)
- goto error_return;
- external_relocs = free_external;
- }
-
- if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0
- || (bfd_read (external_relocs, relsz, sec->reloc_count, abfd)
- != relsz * sec->reloc_count))
- goto error_return;
-
- if (internal_relocs == NULL)
- {
- free_internal = ((struct internal_reloc *)
- bfd_malloc (sec->reloc_count
- * sizeof (struct internal_reloc)));
- if (free_internal == NULL && sec->reloc_count > 0)
- goto error_return;
- internal_relocs = free_internal;
- }
-
- /* Swap in the relocs. */
- erel = external_relocs;
- erel_end = erel + relsz * sec->reloc_count;
- irel = internal_relocs;
- for (; erel < erel_end; erel += relsz, irel++)
- bfd_coff_swap_reloc_in (abfd, (PTR) erel, (PTR) irel);
-
- if (free_external != NULL)
- {
- free (free_external);
- free_external = NULL;
- }
-
- if (cache && free_internal != NULL)
- {
- if (coff_section_data (abfd, sec) == NULL)
- {
- sec->used_by_bfd =
- (PTR) bfd_zalloc (abfd,
- sizeof (struct coff_section_tdata));
- if (sec->used_by_bfd == NULL)
- goto error_return;
- coff_section_data (abfd, sec)->contents = NULL;
- }
- coff_section_data (abfd, sec)->relocs = free_internal;
- }
-
- return internal_relocs;
-
- error_return:
- if (free_external != NULL)
- free (free_external);
- if (free_internal != NULL)
- free (free_internal);
- return NULL;
-}
-
-/* Set lineno_count for the output sections of a COFF file. */
-
-int
-coff_count_linenumbers (abfd)
- bfd *abfd;
-{
- unsigned int limit = bfd_get_symcount (abfd);
- unsigned int i;
- int total = 0;
- asymbol **p;
- asection *s;
-
- if (limit == 0)
- {
- /* This may be from the backend linker, in which case the
- lineno_count in the sections is correct. */
- for (s = abfd->sections; s != NULL; s = s->next)
- total += s->lineno_count;
- return total;
- }
-
- for (s = abfd->sections; s != NULL; s = s->next)
- BFD_ASSERT (s->lineno_count == 0);
-
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
- {
- asymbol *q_maybe = *p;
-
- if (bfd_family_coff (bfd_asymbol_bfd (q_maybe)))
- {
- coff_symbol_type *q = coffsymbol (q_maybe);
-
- /* The AIX 4.1 compiler can sometimes generate line numbers
- attached to debugging symbols. We try to simply ignore
- those here. */
- if (q->lineno != NULL
- && q->symbol.section->owner != NULL)
- {
- /* This symbol has line numbers. Increment the owning
- section's linenumber count. */
- alent *l = q->lineno;
-
- ++q->symbol.section->output_section->lineno_count;
- ++total;
- ++l;
- while (l->line_number != 0)
- {
- ++total;
- ++q->symbol.section->output_section->lineno_count;
- ++l;
- }
- }
- }
- }
-
- return total;
-}
-
-/* Takes a bfd and a symbol, returns a pointer to the coff specific
- area of the symbol if there is one. */
-
-coff_symbol_type *
-coff_symbol_from (ignore_abfd, symbol)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
- asymbol *symbol;
-{
- if (!bfd_family_coff (bfd_asymbol_bfd (symbol)))
- return (coff_symbol_type *) NULL;
-
- if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL)
- return (coff_symbol_type *) NULL;
-
- return (coff_symbol_type *) symbol;
-}
-
-static void
-fixup_symbol_value (abfd, coff_symbol_ptr, syment)
- bfd *abfd;
- coff_symbol_type *coff_symbol_ptr;
- struct internal_syment *syment;
-{
-
- /* Normalize the symbol flags */
- if (bfd_is_com_section (coff_symbol_ptr->symbol.section))
- {
- /* a common symbol is undefined with a value */
- syment->n_scnum = N_UNDEF;
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0
- && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0)
- {
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else if (bfd_is_und_section (coff_symbol_ptr->symbol.section))
- {
- syment->n_scnum = N_UNDEF;
- syment->n_value = 0;
- }
- /* FIXME: Do we need to handle the absolute section here? */
- else
- {
- if (coff_symbol_ptr->symbol.section)
- {
- syment->n_scnum =
- coff_symbol_ptr->symbol.section->output_section->target_index;
-
- syment->n_value = (coff_symbol_ptr->symbol.value
- + coff_symbol_ptr->symbol.section->output_offset);
- if (! obj_pe (abfd))
- {
- syment->n_value += (syment->n_sclass == C_STATLAB)
- ? coff_symbol_ptr->symbol.section->output_section->lma
- : coff_symbol_ptr->symbol.section->output_section->vma;
- }
- }
- else
- {
- BFD_ASSERT (0);
- /* This can happen, but I don't know why yet (steve@cygnus.com) */
- syment->n_scnum = N_ABS;
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- }
-}
-
-/* Run through all the symbols in the symbol table and work out what
- their indexes into the symbol table will be when output.
-
- Coff requires that each C_FILE symbol points to the next one in the
- chain, and that the last one points to the first external symbol. We
- do that here too. */
-
-boolean
-coff_renumber_symbols (bfd_ptr, first_undef)
- bfd *bfd_ptr;
- int *first_undef;
-{
- unsigned int symbol_count = bfd_get_symcount (bfd_ptr);
- asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
- unsigned int native_index = 0;
- struct internal_syment *last_file = (struct internal_syment *) NULL;
- unsigned int symbol_index;
-
- /* COFF demands that undefined symbols come after all other symbols.
- Since we don't need to impose this extra knowledge on all our
- client programs, deal with that here. Sort the symbol table;
- just move the undefined symbols to the end, leaving the rest
- alone. The O'Reilly book says that defined global symbols come
- at the end before the undefined symbols, so we do that here as
- well. */
- /* @@ Do we have some condition we could test for, so we don't always
- have to do this? I don't think relocatability is quite right, but
- I'm not certain. [raeburn:19920508.1711EST] */
- {
- asymbol **newsyms;
- unsigned int i;
-
- newsyms = (asymbol **) bfd_alloc (bfd_ptr,
- sizeof (asymbol *) * (symbol_count + 1));
- if (!newsyms)
- return false;
- bfd_ptr->outsymbols = newsyms;
- for (i = 0; i < symbol_count; i++)
- if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0
- || (!bfd_is_und_section (symbol_ptr_ptr[i]->section)
- && !bfd_is_com_section (symbol_ptr_ptr[i]->section)
- && ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) != 0
- || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK))
- == 0))))
- *newsyms++ = symbol_ptr_ptr[i];
-
- for (i = 0; i < symbol_count; i++)
- if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0
- && !bfd_is_und_section (symbol_ptr_ptr[i]->section)
- && (bfd_is_com_section (symbol_ptr_ptr[i]->section)
- || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0
- && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK))
- != 0))))
- *newsyms++ = symbol_ptr_ptr[i];
-
- *first_undef = newsyms - bfd_ptr->outsymbols;
-
- for (i = 0; i < symbol_count; i++)
- if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0
- && bfd_is_und_section (symbol_ptr_ptr[i]->section))
- *newsyms++ = symbol_ptr_ptr[i];
- *newsyms = (asymbol *) NULL;
- symbol_ptr_ptr = bfd_ptr->outsymbols;
- }
-
- for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
- {
- coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]);
- symbol_ptr_ptr[symbol_index]->udata.i = symbol_index;
- if (coff_symbol_ptr && coff_symbol_ptr->native)
- {
- combined_entry_type *s = coff_symbol_ptr->native;
- int i;
-
- if (s->u.syment.n_sclass == C_FILE)
- {
- if (last_file != (struct internal_syment *) NULL)
- last_file->n_value = native_index;
- last_file = &(s->u.syment);
- }
- else
- {
-
- /* Modify the symbol values according to their section and
- type */
-
- fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment));
- }
- for (i = 0; i < s->u.syment.n_numaux + 1; i++)
- s[i].offset = native_index++;
- }
- else
- {
- native_index++;
- }
- }
- obj_conv_table_size (bfd_ptr) = native_index;
-
- return true;
-}
-
-/* Run thorough the symbol table again, and fix it so that all
- pointers to entries are changed to the entries' index in the output
- symbol table. */
-
-void
-coff_mangle_symbols (bfd_ptr)
- bfd *bfd_ptr;
-{
- unsigned int symbol_count = bfd_get_symcount (bfd_ptr);
- asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
- unsigned int symbol_index;
-
- for (symbol_index = 0; symbol_index < symbol_count; symbol_index++)
- {
- coff_symbol_type *coff_symbol_ptr =
- coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]);
-
- if (coff_symbol_ptr && coff_symbol_ptr->native)
- {
- int i;
- combined_entry_type *s = coff_symbol_ptr->native;
-
- if (s->fix_value)
- {
- /* FIXME: We should use a union here. */
- s->u.syment.n_value =
- (bfd_vma)((combined_entry_type *)
- ((unsigned long) s->u.syment.n_value))->offset;
- s->fix_value = 0;
- }
- if (s->fix_line)
- {
- /* The value is the offset into the line number entries
- for the symbol's section. On output, the symbol's
- section should be N_DEBUG. */
- s->u.syment.n_value =
- (coff_symbol_ptr->symbol.section->output_section->line_filepos
- + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr));
- coff_symbol_ptr->symbol.section =
- coff_section_from_bfd_index (bfd_ptr, N_DEBUG);
- BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING);
- }
- for (i = 0; i < s->u.syment.n_numaux; i++)
- {
- combined_entry_type *a = s + i + 1;
- if (a->fix_tag)
- {
- a->u.auxent.x_sym.x_tagndx.l =
- a->u.auxent.x_sym.x_tagndx.p->offset;
- a->fix_tag = 0;
- }
- if (a->fix_end)
- {
- a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l =
- a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset;
- a->fix_end = 0;
- }
- if (a->fix_scnlen)
- {
- a->u.auxent.x_csect.x_scnlen.l =
- a->u.auxent.x_csect.x_scnlen.p->offset;
- a->fix_scnlen = 0;
- }
- }
- }
- }
-}
-
-static void
-coff_fix_symbol_name (abfd, symbol, native, string_size_p,
- debug_string_section_p, debug_string_size_p)
- bfd *abfd;
- asymbol *symbol;
- combined_entry_type *native;
- bfd_size_type *string_size_p;
- asection **debug_string_section_p;
- bfd_size_type *debug_string_size_p;
-{
- unsigned int name_length;
- union internal_auxent *auxent;
- char *name = (char *) (symbol->name);
-
- if (name == (char *) NULL)
- {
- /* coff symbols always have names, so we'll make one up */
- symbol->name = "strange";
- name = (char *) symbol->name;
- }
- name_length = strlen (name);
-
- if (native->u.syment.n_sclass == C_FILE
- && native->u.syment.n_numaux > 0)
- {
- unsigned int filnmlen;
-
- if (bfd_coff_force_symnames_in_strings (abfd))
- {
- native->u.syment._n._n_n._n_offset =
- (*string_size_p + STRING_SIZE_SIZE);
- native->u.syment._n._n_n._n_zeroes = 0;
- *string_size_p += 6; /* strlen(".file") + 1 */
- }
- else
- strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN);
-
- auxent = &(native + 1)->u.auxent;
-
- filnmlen = bfd_coff_filnmlen (abfd);
-
- if (bfd_coff_long_filenames (abfd))
- {
- if (name_length <= filnmlen)
- {
- strncpy (auxent->x_file.x_fname, name, filnmlen);
- }
- else
- {
- auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE;
- auxent->x_file.x_n.x_zeroes = 0;
- *string_size_p += name_length + 1;
- }
- }
- else
- {
- strncpy (auxent->x_file.x_fname, name, filnmlen);
- if (name_length > filnmlen)
- name[filnmlen] = '\0';
- }
- }
- else
- {
- if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd))
- {
- /* This name will fit into the symbol neatly */
- strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN);
- }
- else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment))
- {
- native->u.syment._n._n_n._n_offset = (*string_size_p
- + STRING_SIZE_SIZE);
- native->u.syment._n._n_n._n_zeroes = 0;
- *string_size_p += name_length + 1;
- }
- else
- {
- long filepos;
- bfd_byte buf[4];
- int prefix_len = bfd_coff_debug_string_prefix_length (abfd);
-
- /* This name should be written into the .debug section. For
- some reason each name is preceded by a two byte length
- and also followed by a null byte. FIXME: We assume that
- the .debug section has already been created, and that it
- is large enough. */
- if (*debug_string_section_p == (asection *) NULL)
- *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug");
- filepos = bfd_tell (abfd);
- if (prefix_len == 4)
- bfd_put_32 (abfd, name_length + 1, buf);
- else
- bfd_put_16 (abfd, name_length + 1, buf);
-
- if (!bfd_set_section_contents (abfd,
- *debug_string_section_p,
- (PTR) buf,
- (file_ptr) *debug_string_size_p,
- (bfd_size_type) prefix_len)
- || !bfd_set_section_contents (abfd,
- *debug_string_section_p,
- (PTR) symbol->name,
- ((file_ptr) *debug_string_size_p
- + prefix_len),
- (bfd_size_type) name_length + 1))
- abort ();
- if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
- abort ();
- native->u.syment._n._n_n._n_offset =
- *debug_string_size_p + prefix_len;
- native->u.syment._n._n_n._n_zeroes = 0;
- *debug_string_size_p += name_length + 1 + prefix_len;
- }
- }
-}
-
-/* We need to keep track of the symbol index so that when we write out
- the relocs we can get the index for a symbol. This method is a
- hack. FIXME. */
-
-#define set_index(symbol, idx) ((symbol)->udata.i = (idx))
-
-/* Write a symbol out to a COFF file. */
-
-static boolean
-coff_write_symbol (abfd, symbol, native, written, string_size_p,
- debug_string_section_p, debug_string_size_p)
- bfd *abfd;
- asymbol *symbol;
- combined_entry_type *native;
- bfd_vma *written;
- bfd_size_type *string_size_p;
- asection **debug_string_section_p;
- bfd_size_type *debug_string_size_p;
-{
- unsigned int numaux = native->u.syment.n_numaux;
- int type = native->u.syment.n_type;
- int class = native->u.syment.n_sclass;
- PTR buf;
- bfd_size_type symesz;
-
- if (native->u.syment.n_sclass == C_FILE)
- symbol->flags |= BSF_DEBUGGING;
-
- if (symbol->flags & BSF_DEBUGGING
- && bfd_is_abs_section (symbol->section))
- {
- native->u.syment.n_scnum = N_DEBUG;
- }
- else if (bfd_is_abs_section (symbol->section))
- {
- native->u.syment.n_scnum = N_ABS;
- }
- else if (bfd_is_und_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- }
- else
- {
- native->u.syment.n_scnum =
- symbol->section->output_section->target_index;
- }
-
- coff_fix_symbol_name (abfd, symbol, native, string_size_p,
- debug_string_section_p, debug_string_size_p);
-
- symesz = bfd_coff_symesz (abfd);
- buf = bfd_alloc (abfd, symesz);
- if (!buf)
- return false;
- bfd_coff_swap_sym_out (abfd, &native->u.syment, buf);
- if (bfd_write (buf, 1, symesz, abfd) != symesz)
- return false;
- bfd_release (abfd, buf);
-
- if (native->u.syment.n_numaux > 0)
- {
- bfd_size_type auxesz;
- unsigned int j;
-
- auxesz = bfd_coff_auxesz (abfd);
- buf = bfd_alloc (abfd, auxesz);
- if (!buf)
- return false;
- for (j = 0; j < native->u.syment.n_numaux; j++)
- {
- bfd_coff_swap_aux_out (abfd,
- &((native + j + 1)->u.auxent),
- type,
- class,
- j,
- native->u.syment.n_numaux,
- buf);
- if (bfd_write (buf, 1, auxesz, abfd) != auxesz)
- return false;
- }
- bfd_release (abfd, buf);
- }
-
- /* Store the index for use when we write out the relocs. */
- set_index (symbol, *written);
-
- *written += numaux + 1;
- return true;
-}
-
-/* Write out a symbol to a COFF file that does not come from a COFF
- file originally. This symbol may have been created by the linker,
- or we may be linking a non COFF file to a COFF file. */
-
-static boolean
-coff_write_alien_symbol (abfd, symbol, written, string_size_p,
- debug_string_section_p, debug_string_size_p)
- bfd *abfd;
- asymbol *symbol;
- bfd_vma *written;
- bfd_size_type *string_size_p;
- asection **debug_string_section_p;
- bfd_size_type *debug_string_size_p;
-{
- combined_entry_type *native;
- combined_entry_type dummy;
-
- native = &dummy;
- native->u.syment.n_type = T_NULL;
- native->u.syment.n_flags = 0;
- if (bfd_is_und_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
- }
- else if (bfd_is_com_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
- }
- else if (symbol->flags & BSF_DEBUGGING)
- {
- /* There isn't much point to writing out a debugging symbol
- unless we are prepared to convert it into COFF debugging
- format. So, we just ignore them. We must clobber the symbol
- name to keep it from being put in the string table. */
- symbol->name = "";
- return true;
- }
- else
- {
- native->u.syment.n_scnum =
- symbol->section->output_section->target_index;
- native->u.syment.n_value = (symbol->value
- + symbol->section->output_offset);
- if (! obj_pe (abfd))
- native->u.syment.n_value += symbol->section->output_section->vma;
-
- /* Copy the any flags from the the file header into the symbol.
- FIXME: Why? */
- {
- coff_symbol_type *c = coff_symbol_from (abfd, symbol);
- if (c != (coff_symbol_type *) NULL)
- native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags;
- }
- }
-
- native->u.syment.n_type = 0;
- if (symbol->flags & BSF_LOCAL)
- native->u.syment.n_sclass = C_STAT;
- else if (symbol->flags & BSF_WEAK)
- native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT;
- else
- native->u.syment.n_sclass = C_EXT;
- native->u.syment.n_numaux = 0;
-
- return coff_write_symbol (abfd, symbol, native, written, string_size_p,
- debug_string_section_p, debug_string_size_p);
-}
-
-/* Write a native symbol to a COFF file. */
-
-static boolean
-coff_write_native_symbol (abfd, symbol, written, string_size_p,
- debug_string_section_p, debug_string_size_p)
- bfd *abfd;
- coff_symbol_type *symbol;
- bfd_vma *written;
- bfd_size_type *string_size_p;
- asection **debug_string_section_p;
- bfd_size_type *debug_string_size_p;
-{
- combined_entry_type *native = symbol->native;
- alent *lineno = symbol->lineno;
-
- /* If this symbol has an associated line number, we must store the
- symbol index in the line number field. We also tag the auxent to
- point to the right place in the lineno table. */
- if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL)
- {
- unsigned int count = 0;
- lineno[count].u.offset = *written;
- if (native->u.syment.n_numaux)
- {
- union internal_auxent *a = &((native + 1)->u.auxent);
-
- a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
- symbol->symbol.section->output_section->moving_line_filepos;
- }
-
- /* Count and relocate all other linenumbers. */
- count++;
- while (lineno[count].line_number != 0)
- {
-#if 0
- /* 13 april 92. sac
- I've been told this, but still need proof:
- > The second bug is also in `bfd/coffcode.h'. This bug
- > causes the linker to screw up the pc-relocations for
- > all the line numbers in COFF code. This bug isn't only
- > specific to A29K implementations, but affects all
- > systems using COFF format binaries. Note that in COFF
- > object files, the line number core offsets output by
- > the assembler are relative to the start of each
- > procedure, not to the start of the .text section. This
- > patch relocates the line numbers relative to the
- > `native->u.syment.n_value' instead of the section
- > virtual address.
- > modular!olson@cs.arizona.edu (Jon Olson)
- */
- lineno[count].u.offset += native->u.syment.n_value;
-#else
- lineno[count].u.offset +=
- (symbol->symbol.section->output_section->vma
- + symbol->symbol.section->output_offset);
-#endif
- count++;
- }
- symbol->done_lineno = true;
-
- symbol->symbol.section->output_section->moving_line_filepos +=
- count * bfd_coff_linesz (abfd);
- }
-
- return coff_write_symbol (abfd, &(symbol->symbol), native, written,
- string_size_p, debug_string_section_p,
- debug_string_size_p);
-}
-
-/* Write out the COFF symbols. */
-
-boolean
-coff_write_symbols (abfd)
- bfd *abfd;
-{
- bfd_size_type string_size;
- asection *debug_string_section;
- bfd_size_type debug_string_size;
- unsigned int i;
- unsigned int limit = bfd_get_symcount (abfd);
- bfd_signed_vma written = 0;
- asymbol **p;
-
- string_size = 0;
- debug_string_section = NULL;
- debug_string_size = 0;
-
- /* If this target supports long section names, they must be put into
- the string table. This is supported by PE. This code must
- handle section names just as they are handled in
- coff_write_object_contents. */
- if (bfd_coff_long_section_names (abfd))
- {
- asection *o;
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- size_t len;
-
- len = strlen (o->name);
- if (len > SCNNMLEN)
- string_size += len + 1;
- }
- }
-
- /* Seek to the right place */
- if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
- return false;
-
- /* Output all the symbols we have */
-
- written = 0;
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
- {
- asymbol *symbol = *p;
- coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol);
-
- if (c_symbol == (coff_symbol_type *) NULL
- || c_symbol->native == (combined_entry_type *) NULL)
- {
- if (!coff_write_alien_symbol (abfd, symbol, &written, &string_size,
- &debug_string_section,
- &debug_string_size))
- return false;
- }
- else
- {
- if (!coff_write_native_symbol (abfd, c_symbol, &written,
- &string_size, &debug_string_section,
- &debug_string_size))
- return false;
- }
- }
-
- obj_raw_syment_count (abfd) = written;
-
- /* Now write out strings */
-
- if (string_size != 0)
- {
- unsigned int size = string_size + STRING_SIZE_SIZE;
- bfd_byte buffer[STRING_SIZE_SIZE];
-
-#if STRING_SIZE_SIZE == 4
- bfd_h_put_32 (abfd, size, buffer);
-#else
- #error Change bfd_h_put_32
-#endif
- if (bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd) != sizeof (buffer))
- return false;
-
- /* Handle long section names. This code must handle section
- names just as they are handled in coff_write_object_contents. */
- if (bfd_coff_long_section_names (abfd))
- {
- asection *o;
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- size_t len;
-
- len = strlen (o->name);
- if (len > SCNNMLEN)
- {
- if (bfd_write (o->name, 1, len + 1, abfd) != len + 1)
- return false;
- }
- }
- }
-
- for (p = abfd->outsymbols, i = 0;
- i < limit;
- i++, p++)
- {
- asymbol *q = *p;
- size_t name_length = strlen (q->name);
- coff_symbol_type *c_symbol = coff_symbol_from (abfd, q);
- size_t maxlen;
-
- /* Figure out whether the symbol name should go in the string
- table. Symbol names that are short enough are stored
- directly in the syment structure. File names permit a
- different, longer, length in the syment structure. On
- XCOFF, some symbol names are stored in the .debug section
- rather than in the string table. */
-
- if (c_symbol == NULL
- || c_symbol->native == NULL)
- {
- /* This is not a COFF symbol, so it certainly is not a
- file name, nor does it go in the .debug section. */
- maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN;
- }
- else if (bfd_coff_symname_in_debug (abfd,
- &c_symbol->native->u.syment))
- {
- /* This symbol name is in the XCOFF .debug section.
- Don't write it into the string table. */
- maxlen = name_length;
- }
- else if (c_symbol->native->u.syment.n_sclass == C_FILE
- && c_symbol->native->u.syment.n_numaux > 0)
- {
- if (bfd_coff_force_symnames_in_strings (abfd))
- bfd_write (".file", 1, 6, abfd);
- maxlen = bfd_coff_filnmlen (abfd);
- }
- else
- maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN;
-
- if (name_length > maxlen)
- {
- if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd)
- != name_length + 1)
- return false;
- }
- }
- }
- else
- {
- /* We would normally not write anything here, but we'll write
- out 4 so that any stupid coff reader which tries to read the
- string table even when there isn't one won't croak. */
- unsigned int size = STRING_SIZE_SIZE;
- bfd_byte buffer[STRING_SIZE_SIZE];
-
-#if STRING_SIZE_SIZE == 4
- bfd_h_put_32 (abfd, size, buffer);
-#else
- #error Change bfd_h_put_32
-#endif
- if (bfd_write ((PTR) buffer, 1, STRING_SIZE_SIZE, abfd)
- != STRING_SIZE_SIZE)
- return false;
- }
-
- /* Make sure the .debug section was created to be the correct size.
- We should create it ourselves on the fly, but we don't because
- BFD won't let us write to any section until we know how large all
- the sections are. We could still do it by making another pass
- over the symbols. FIXME. */
- BFD_ASSERT (debug_string_size == 0
- || (debug_string_section != (asection *) NULL
- && (BFD_ALIGN (debug_string_size,
- 1 << debug_string_section->alignment_power)
- == bfd_section_size (abfd, debug_string_section))));
-
- return true;
-}
-
-boolean
-coff_write_linenumbers (abfd)
- bfd *abfd;
-{
- asection *s;
- bfd_size_type linesz;
- PTR buff;
-
- linesz = bfd_coff_linesz (abfd);
- buff = bfd_alloc (abfd, linesz);
- if (!buff)
- return false;
- for (s = abfd->sections; s != (asection *) NULL; s = s->next)
- {
- if (s->lineno_count)
- {
- asymbol **q = abfd->outsymbols;
- if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0)
- return false;
- /* Find all the linenumbers in this section */
- while (*q)
- {
- asymbol *p = *q;
- if (p->section->output_section == s)
- {
- alent *l =
- BFD_SEND (bfd_asymbol_bfd (p), _get_lineno,
- (bfd_asymbol_bfd (p), p));
- if (l)
- {
- /* Found a linenumber entry, output */
- struct internal_lineno out;
- memset ((PTR) & out, 0, sizeof (out));
- out.l_lnno = 0;
- out.l_addr.l_symndx = l->u.offset;
- bfd_coff_swap_lineno_out (abfd, &out, buff);
- if (bfd_write (buff, 1, linesz, abfd) != linesz)
- return false;
- l++;
- while (l->line_number)
- {
- out.l_lnno = l->line_number;
- out.l_addr.l_symndx = l->u.offset;
- bfd_coff_swap_lineno_out (abfd, &out, buff);
- if (bfd_write (buff, 1, linesz, abfd) != linesz)
- return false;
- l++;
- }
- }
- }
- q++;
- }
- }
- }
- bfd_release (abfd, buff);
- return true;
-}
-
-alent *
-coff_get_lineno (ignore_abfd, symbol)
- bfd *ignore_abfd ATTRIBUTE_UNUSED;
- asymbol *symbol;
-{
- return coffsymbol (symbol)->lineno;
-}
-
-#if 0
-
-/* This is only called from coff_add_missing_symbols, which has been
- disabled. */
-
-asymbol *
-coff_section_symbol (abfd, name)
- bfd *abfd;
- char *name;
-{
- asection *sec = bfd_make_section_old_way (abfd, name);
- asymbol *sym;
- combined_entry_type *csym;
-
- sym = sec->symbol;
- csym = coff_symbol_from (abfd, sym)->native;
- /* Make sure back-end COFF stuff is there. */
- if (csym == 0)
- {
- struct foo
- {
- coff_symbol_type sym;
- /* @@FIXME This shouldn't use a fixed size!! */
- combined_entry_type e[10];
- };
- struct foo *f;
- f = (struct foo *) bfd_alloc (abfd, sizeof (*f));
- if (!f)
- {
- bfd_set_error (bfd_error_no_error);
- return NULL;
- }
- memset ((char *) f, 0, sizeof (*f));
- coff_symbol_from (abfd, sym)->native = csym = f->e;
- }
- csym[0].u.syment.n_sclass = C_STAT;
- csym[0].u.syment.n_numaux = 1;
-/* SF_SET_STATICS (sym); @@ ??? */
- csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size;
- csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count;
- csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count;
-
- if (sec->output_section == NULL)
- {
- sec->output_section = sec;
- sec->output_offset = 0;
- }
-
- return sym;
-}
-
-#endif /* 0 */
-
-/* This function transforms the offsets into the symbol table into
- pointers to syments. */
-
-static void
-coff_pointerize_aux (abfd, table_base, symbol, indaux, auxent)
- bfd *abfd;
- combined_entry_type *table_base;
- combined_entry_type *symbol;
- unsigned int indaux;
- combined_entry_type *auxent;
-{
- unsigned int type = symbol->u.syment.n_type;
- unsigned int class = symbol->u.syment.n_sclass;
-
- if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook)
- {
- if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook)
- (abfd, table_base, symbol, indaux, auxent))
- return;
- }
-
- /* Don't bother if this is a file or a section */
- if (class == C_STAT && type == T_NULL)
- return;
- if (class == C_FILE)
- return;
-
- /* Otherwise patch up */
-#define N_TMASK coff_data (abfd)->local_n_tmask
-#define N_BTSHFT coff_data (abfd)->local_n_btshft
- if ((ISFCN (type) || ISTAG (class) || class == C_BLOCK || class == C_FCN)
- && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0)
- {
- auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p =
- table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l;
- auxent->fix_end = 1;
- }
- /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can
- generate one, so we must be careful to ignore it. */
- if (auxent->u.auxent.x_sym.x_tagndx.l > 0)
- {
- auxent->u.auxent.x_sym.x_tagndx.p =
- table_base + auxent->u.auxent.x_sym.x_tagndx.l;
- auxent->fix_tag = 1;
- }
-}
-
-/* Allocate space for the ".debug" section, and read it.
- We did not read the debug section until now, because
- we didn't want to go to the trouble until someone needed it. */
-
-static char *
-build_debug_section (abfd)
- bfd *abfd;
-{
- char *debug_section;
- long position;
-
- asection *sect = bfd_get_section_by_name (abfd, ".debug");
-
- if (!sect)
- {
- bfd_set_error (bfd_error_no_debug_section);
- return NULL;
- }
-
- debug_section = (PTR) bfd_alloc (abfd,
- bfd_get_section_size_before_reloc (sect));
- if (debug_section == NULL)
- return NULL;
-
- /* Seek to the beginning of the `.debug' section and read it.
- Save the current position first; it is needed by our caller.
- Then read debug section and reset the file pointer. */
-
- position = bfd_tell (abfd);
- if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0
- || (bfd_read (debug_section,
- bfd_get_section_size_before_reloc (sect), 1, abfd)
- != bfd_get_section_size_before_reloc (sect))
- || bfd_seek (abfd, position, SEEK_SET) != 0)
- return NULL;
- return debug_section;
-}
-
-/* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
- \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
- be \0-terminated. */
-static char *
-copy_name (abfd, name, maxlen)
- bfd *abfd;
- char *name;
- int maxlen;
-{
- int len;
- char *newname;
-
- for (len = 0; len < maxlen; ++len)
- {
- if (name[len] == '\0')
- {
- break;
- }
- }
-
- if ((newname = (PTR) bfd_alloc (abfd, len + 1)) == NULL)
- return (NULL);
- strncpy (newname, name, len);
- newname[len] = '\0';
- return newname;
-}
-
-/* Read in the external symbols. */
-
-boolean
-_bfd_coff_get_external_symbols (abfd)
- bfd *abfd;
-{
- bfd_size_type symesz;
- size_t size;
- PTR syms;
-
- if (obj_coff_external_syms (abfd) != NULL)
- return true;
-
- symesz = bfd_coff_symesz (abfd);
-
- size = obj_raw_syment_count (abfd) * symesz;
-
- syms = (PTR) bfd_malloc (size);
- if (syms == NULL && size != 0)
- return false;
-
- if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
- || bfd_read (syms, size, 1, abfd) != size)
- {
- if (syms != NULL)
- free (syms);
- return false;
- }
-
- obj_coff_external_syms (abfd) = syms;
-
- return true;
-}
-
-/* Read in the external strings. The strings are not loaded until
- they are needed. This is because we have no simple way of
- detecting a missing string table in an archive. */
-
-const char *
-_bfd_coff_read_string_table (abfd)
- bfd *abfd;
-{
- char extstrsize[STRING_SIZE_SIZE];
- size_t strsize;
- char *strings;
-
- if (obj_coff_strings (abfd) != NULL)
- return obj_coff_strings (abfd);
-
- if (obj_sym_filepos (abfd) == 0)
- {
- bfd_set_error (bfd_error_no_symbols);
- return NULL;
- }
-
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd)),
- SEEK_SET) != 0)
- return NULL;
-
- if (bfd_read (extstrsize, sizeof extstrsize, 1, abfd) != sizeof extstrsize)
- {
- if (bfd_get_error () != bfd_error_file_truncated)
- return NULL;
-
- /* There is no string table. */
- strsize = STRING_SIZE_SIZE;
- }
- else
- {
-#if STRING_SIZE_SIZE == 4
- strsize = bfd_h_get_32 (abfd, (bfd_byte *) extstrsize);
-#else
- #error Change bfd_h_get_32
-#endif
- }
-
- if (strsize < STRING_SIZE_SIZE)
- {
- (*_bfd_error_handler)
- (_("%s: bad string table size %lu"), bfd_get_filename (abfd),
- (unsigned long) strsize);
- bfd_set_error (bfd_error_bad_value);
- return NULL;
- }
-
- strings = (char *) bfd_malloc (strsize);
- if (strings == NULL)
- return NULL;
-
- if (bfd_read (strings + STRING_SIZE_SIZE,
- strsize - STRING_SIZE_SIZE, 1, abfd)
- != strsize - STRING_SIZE_SIZE)
- {
- free (strings);
- return NULL;
- }
-
- obj_coff_strings (abfd) = strings;
-
- return strings;
-}
-
-/* Free up the external symbols and strings read from a COFF file. */
-
-boolean
-_bfd_coff_free_symbols (abfd)
- bfd *abfd;
-{
- if (obj_coff_external_syms (abfd) != NULL
- && ! obj_coff_keep_syms (abfd))
- {
- free (obj_coff_external_syms (abfd));
- obj_coff_external_syms (abfd) = NULL;
- }
- if (obj_coff_strings (abfd) != NULL
- && ! obj_coff_keep_strings (abfd))
- {
- free (obj_coff_strings (abfd));
- obj_coff_strings (abfd) = NULL;
- }
- return true;
-}
-
-/* Read a symbol table into freshly bfd_allocated memory, swap it, and
- knit the symbol names into a normalized form. By normalized here I
- mean that all symbols have an n_offset pointer that points to a null-
- terminated string. */
-
-combined_entry_type *
-coff_get_normalized_symtab (abfd)
- bfd *abfd;
-{
- combined_entry_type *internal;
- combined_entry_type *internal_ptr;
- combined_entry_type *symbol_ptr;
- combined_entry_type *internal_end;
- bfd_size_type symesz;
- char *raw_src;
- char *raw_end;
- const char *string_table = NULL;
- char *debug_section = NULL;
- unsigned long size;
-
- if (obj_raw_syments (abfd) != NULL)
- return obj_raw_syments (abfd);
-
- size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type);
- internal = (combined_entry_type *) bfd_zalloc (abfd, size);
- if (internal == NULL && size != 0)
- return NULL;
- internal_end = internal + obj_raw_syment_count (abfd);
-
- if (! _bfd_coff_get_external_symbols (abfd))
- return NULL;
-
- raw_src = (char *) obj_coff_external_syms (abfd);
-
- /* mark the end of the symbols */
- symesz = bfd_coff_symesz (abfd);
- raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz;
-
- /* FIXME SOMEDAY. A string table size of zero is very weird, but
- probably possible. If one shows up, it will probably kill us. */
-
- /* Swap all the raw entries */
- for (internal_ptr = internal;
- raw_src < raw_end;
- raw_src += symesz, internal_ptr++)
- {
-
- unsigned int i;
- bfd_coff_swap_sym_in (abfd, (PTR) raw_src,
- (PTR) & internal_ptr->u.syment);
- symbol_ptr = internal_ptr;
-
- for (i = 0;
- i < symbol_ptr->u.syment.n_numaux;
- i++)
- {
- internal_ptr++;
- raw_src += symesz;
- bfd_coff_swap_aux_in (abfd, (PTR) raw_src,
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- i, symbol_ptr->u.syment.n_numaux,
- &(internal_ptr->u.auxent));
- coff_pointerize_aux (abfd, internal, symbol_ptr, i,
- internal_ptr);
- }
- }
-
- /* Free the raw symbols, but not the strings (if we have them). */
- obj_coff_keep_strings (abfd) = true;
- if (! _bfd_coff_free_symbols (abfd))
- return NULL;
-
- for (internal_ptr = internal; internal_ptr < internal_end;
- internal_ptr++)
- {
- if (internal_ptr->u.syment.n_sclass == C_FILE
- && internal_ptr->u.syment.n_numaux > 0)
- {
- /* make a file symbol point to the name in the auxent, since
- the text ".file" is redundant */
- if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0)
- {
- /* the filename is a long one, point into the string table */
- if (string_table == NULL)
- {
- string_table = _bfd_coff_read_string_table (abfd);
- if (string_table == NULL)
- return NULL;
- }
-
- internal_ptr->u.syment._n._n_n._n_offset =
- ((long)
- (string_table
- + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset));
- }
- else
- {
- /* Ordinary short filename, put into memory anyway. The
- Microsoft PE tools sometimes store a filename in
- multiple AUX entries. */
- if (internal_ptr->u.syment.n_numaux > 1
- && coff_data (abfd)->pe)
- {
- internal_ptr->u.syment._n._n_n._n_offset =
- ((long)
- copy_name (abfd,
- (internal_ptr + 1)->u.auxent.x_file.x_fname,
- internal_ptr->u.syment.n_numaux * symesz));
- }
- else
- {
- internal_ptr->u.syment._n._n_n._n_offset =
- ((long)
- copy_name (abfd,
- (internal_ptr + 1)->u.auxent.x_file.x_fname,
- bfd_coff_filnmlen (abfd)));
- }
- }
- }
- else
- {
- if (internal_ptr->u.syment._n._n_n._n_zeroes != 0)
- {
- /* This is a "short" name. Make it long. */
- unsigned long i = 0;
- char *newstring = NULL;
-
- /* find the length of this string without walking into memory
- that isn't ours. */
- for (i = 0; i < 8; ++i)
- {
- if (internal_ptr->u.syment._n._n_name[i] == '\0')
- {
- break;
- } /* if end of string */
- } /* possible lengths of this string. */
-
- if ((newstring = (PTR) bfd_alloc (abfd, ++i)) == NULL)
- return (NULL);
- memset (newstring, 0, i);
- strncpy (newstring, internal_ptr->u.syment._n._n_name, i - 1);
- internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring;
- internal_ptr->u.syment._n._n_n._n_zeroes = 0;
- }
- else if (internal_ptr->u.syment._n._n_n._n_offset == 0)
- internal_ptr->u.syment._n._n_n._n_offset = (long int) "";
- else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment))
- {
- /* Long name already. Point symbol at the string in the
- table. */
- if (string_table == NULL)
- {
- string_table = _bfd_coff_read_string_table (abfd);
- if (string_table == NULL)
- return NULL;
- }
- internal_ptr->u.syment._n._n_n._n_offset =
- ((long int)
- (string_table
- + internal_ptr->u.syment._n._n_n._n_offset));
- }
- else
- {
- /* Long name in debug section. Very similar. */
- if (debug_section == NULL)
- debug_section = build_debug_section (abfd);
- internal_ptr->u.syment._n._n_n._n_offset = (long int)
- (debug_section + internal_ptr->u.syment._n._n_n._n_offset);
- }
- }
- internal_ptr += internal_ptr->u.syment.n_numaux;
- }
-
- obj_raw_syments (abfd) = internal;
- BFD_ASSERT (obj_raw_syment_count (abfd)
- == (unsigned int) (internal_ptr - internal));
-
- return (internal);
-} /* coff_get_normalized_symtab() */
-
-long
-coff_get_reloc_upper_bound (abfd, asect)
- bfd *abfd;
- sec_ptr asect;
-{
- if (bfd_get_format (abfd) != bfd_object)
- {
- bfd_set_error (bfd_error_invalid_operation);
- return -1;
- }
- return (asect->reloc_count + 1) * sizeof (arelent *);
-}
-
-asymbol *
-coff_make_empty_symbol (abfd)
- bfd *abfd;
-{
- coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
- if (new == NULL)
- return (NULL);
- memset (new, 0, sizeof *new);
- new->symbol.section = 0;
- new->native = 0;
- new->lineno = (alent *) NULL;
- new->done_lineno = false;
- new->symbol.the_bfd = abfd;
- return &new->symbol;
-}
-
-/* Make a debugging symbol. */
-
-asymbol *
-coff_bfd_make_debug_symbol (abfd, ptr, sz)
- bfd *abfd;
- PTR ptr ATTRIBUTE_UNUSED;
- unsigned long sz ATTRIBUTE_UNUSED;
-{
- coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
- if (new == NULL)
- return (NULL);
- /* @@ The 10 is a guess at a plausible maximum number of aux entries
- (but shouldn't be a constant). */
- new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10);
- if (!new->native)
- return (NULL);
- new->symbol.section = bfd_abs_section_ptr;
- new->symbol.flags = BSF_DEBUGGING;
- new->lineno = (alent *) NULL;
- new->done_lineno = false;
- new->symbol.the_bfd = abfd;
- return &new->symbol;
-}
-
-void
-coff_get_symbol_info (abfd, symbol, ret)
- bfd *abfd;
- asymbol *symbol;
- symbol_info *ret;
-{
- bfd_symbol_info (symbol, ret);
- if (coffsymbol (symbol)->native != NULL
- && coffsymbol (symbol)->native->fix_value)
- {
- ret->value = coffsymbol (symbol)->native->u.syment.n_value -
- (unsigned long) obj_raw_syments (abfd);
- }
-}
-
-/* Return the COFF syment for a symbol. */
-
-boolean
-bfd_coff_get_syment (abfd, symbol, psyment)
- bfd *abfd;
- asymbol *symbol;
- struct internal_syment *psyment;
-{
- coff_symbol_type *csym;
-
- csym = coff_symbol_from (abfd, symbol);
- if (csym == NULL || csym->native == NULL)
- {
- bfd_set_error (bfd_error_invalid_operation);
- return false;
- }
-
- *psyment = csym->native->u.syment;
-
- if (csym->native->fix_value)
- psyment->n_value = psyment->n_value -
- (unsigned long) obj_raw_syments (abfd);
-
- /* FIXME: We should handle fix_line here. */
-
- return true;
-}
-
-/* Return the COFF auxent for a symbol. */
-
-boolean
-bfd_coff_get_auxent (abfd, symbol, indx, pauxent)
- bfd *abfd;
- asymbol *symbol;
- int indx;
- union internal_auxent *pauxent;
-{
- coff_symbol_type *csym;
- combined_entry_type *ent;
-
- csym = coff_symbol_from (abfd, symbol);
-
- if (csym == NULL
- || csym->native == NULL
- || indx >= csym->native->u.syment.n_numaux)
- {
- bfd_set_error (bfd_error_invalid_operation);
- return false;
- }
-
- ent = csym->native + indx + 1;
-
- *pauxent = ent->u.auxent;
-
- if (ent->fix_tag)
- pauxent->x_sym.x_tagndx.l =
- ((combined_entry_type *) pauxent->x_sym.x_tagndx.p
- - obj_raw_syments (abfd));
-
- if (ent->fix_end)
- pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l =
- ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p
- - obj_raw_syments (abfd));
-
- if (ent->fix_scnlen)
- pauxent->x_csect.x_scnlen.l =
- ((combined_entry_type *) pauxent->x_csect.x_scnlen.p
- - obj_raw_syments (abfd));
-
- return true;
-}
-
-/* Print out information about COFF symbol. */
-
-void
-coff_print_symbol (abfd, filep, symbol, how)
- bfd *abfd;
- PTR filep;
- asymbol *symbol;
- bfd_print_symbol_type how;
-{
- FILE *file = (FILE *) filep;
-
- switch (how)
- {
- case bfd_print_symbol_name:
- fprintf (file, "%s", symbol->name);
- break;
-
- case bfd_print_symbol_more:
- fprintf (file, "coff %s %s",
- coffsymbol (symbol)->native ? "n" : "g",
- coffsymbol (symbol)->lineno ? "l" : " ");
- break;
-
- case bfd_print_symbol_all:
- if (coffsymbol (symbol)->native)
- {
- bfd_vma val;
- unsigned int aux;
- combined_entry_type *combined = coffsymbol (symbol)->native;
- combined_entry_type *root = obj_raw_syments (abfd);
- struct lineno_cache_entry *l = coffsymbol (symbol)->lineno;
-
- fprintf (file, "[%3ld]", (long) (combined - root));
-
- if (! combined->fix_value)
- val = (bfd_vma) combined->u.syment.n_value;
- else
- val = combined->u.syment.n_value - (unsigned long) root;
-
-#ifndef XCOFF64
- fprintf (file,
- "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%08lx %s",
- combined->u.syment.n_scnum,
- combined->u.syment.n_flags,
- combined->u.syment.n_type,
- combined->u.syment.n_sclass,
- combined->u.syment.n_numaux,
- (unsigned long) val,
- symbol->name);
-#else
- /* Print out the wide, 64 bit, symbol value */
- fprintf (file,
- "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%016llx %s",
- combined->u.syment.n_scnum,
- combined->u.syment.n_flags,
- combined->u.syment.n_type,
- combined->u.syment.n_sclass,
- combined->u.syment.n_numaux,
- val,
- symbol->name);
-#endif
-
- for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
- {
- combined_entry_type *auxp = combined + aux + 1;
- long tagndx;
-
- if (auxp->fix_tag)
- tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root;
- else
- tagndx = auxp->u.auxent.x_sym.x_tagndx.l;
-
- fprintf (file, "\n");
-
- if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux))
- continue;
-
- switch (combined->u.syment.n_sclass)
- {
- case C_FILE:
- fprintf (file, "File ");
- break;
-
- case C_STAT:
- if (combined->u.syment.n_type == T_NULL)
- /* probably a section symbol? */
- {
- fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d",
- (long) auxp->u.auxent.x_scn.x_scnlen,
- auxp->u.auxent.x_scn.x_nreloc,
- auxp->u.auxent.x_scn.x_nlinno);
- if (auxp->u.auxent.x_scn.x_checksum != 0
- || auxp->u.auxent.x_scn.x_associated != 0
- || auxp->u.auxent.x_scn.x_comdat != 0)
- fprintf (file, " checksum 0x%lx assoc %d comdat %d",
- auxp->u.auxent.x_scn.x_checksum,
- auxp->u.auxent.x_scn.x_associated,
- auxp->u.auxent.x_scn.x_comdat);
- break;
- }
- /* else fall through */
- case C_EXT:
- if (ISFCN (combined->u.syment.n_type))
- {
- fprintf (file,
- _("AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld"),
- tagndx,
- auxp->u.auxent.x_sym.x_misc.x_fsize,
- auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr,
- (auxp->fix_end
- ? ((long)
- (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p
- - root))
- : auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l));
- break;
- }
- /* else fall through */
- default:
- fprintf (file, "AUX lnno %d size 0x%x tagndx %ld",
- auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno,
- auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size,
- tagndx);
- if (auxp->fix_end)
- fprintf (file, " endndx %ld",
- ((long)
- (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p
- - root)));
- break;
- }
- }
-
- if (l)
- {
- fprintf (file, "\n%s :", l->u.sym->name);
- l++;
- while (l->line_number)
- {
- fprintf (file, "\n%4d : 0x%lx",
- l->line_number,
- ((unsigned long)
- (l->u.offset + symbol->section->vma)));
- l++;
- }
- }
- }
- else
- {
- bfd_print_symbol_vandf ((PTR) file, symbol);
- fprintf (file, " %-5s %s %s %s",
- symbol->section->name,
- coffsymbol (symbol)->native ? "n" : "g",
- coffsymbol (symbol)->lineno ? "l" : " ",
- symbol->name);
- }
- }
-}
-
-/* Return whether a symbol name implies a local symbol. In COFF,
- local symbols generally start with ``.L''. Most targets use this
- function for the is_local_label_name entry point, but some may
- override it. */
-
-boolean
-_bfd_coff_is_local_label_name (abfd, name)
- bfd *abfd ATTRIBUTE_UNUSED;
- const char *name;
-{
- return name[0] == '.' && name[1] == 'L';
-}
-
-/* Provided a BFD, a section and an offset (in bytes, not octets) into the
- section, calculate and return the name of the source file and the line
- nearest to the wanted location. */
-
-boolean
-coff_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
- functionname_ptr, line_ptr)
- bfd *abfd;
- asection *section;
- asymbol **symbols;
- bfd_vma offset;
- CONST char **filename_ptr;
- CONST char **functionname_ptr;
- unsigned int *line_ptr;
-{
- boolean found;
- unsigned int i;
- unsigned int line_base;
- coff_data_type *cof = coff_data (abfd);
- /* Run through the raw syments if available */
- combined_entry_type *p;
- combined_entry_type *pend;
- alent *l;
- struct coff_section_tdata *sec_data;
-
- /* Before looking through the symbol table, try to use a .stab
- section to find the information. */
- if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
- &found, filename_ptr,
- functionname_ptr, line_ptr,
- &coff_data(abfd)->line_info))
- return false;
-
- if (found)
- return true;
-
- /* Also try examining DWARF2 debugging information. */
- if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
- filename_ptr, functionname_ptr,
- line_ptr, 0,
- &coff_data(abfd)->dwarf2_find_line_info))
- return true;
-
- *filename_ptr = 0;
- *functionname_ptr = 0;
- *line_ptr = 0;
-
- /* Don't try and find line numbers in a non coff file */
- if (!bfd_family_coff (abfd))
- return false;
-
- if (cof == NULL)
- return false;
-
- /* Find the first C_FILE symbol. */
- p = cof->raw_syments;
- if (!p)
- return false;
-
- pend = p + cof->raw_syment_count;
- while (p < pend)
- {
- if (p->u.syment.n_sclass == C_FILE)
- break;
- p += 1 + p->u.syment.n_numaux;
- }
-
- if (p < pend)
- {
- bfd_vma sec_vma;
- bfd_vma maxdiff;
-
- /* Look through the C_FILE symbols to find the best one. */
- sec_vma = bfd_get_section_vma (abfd, section);
- *filename_ptr = (char *) p->u.syment._n._n_n._n_offset;
- maxdiff = (bfd_vma) 0 - (bfd_vma) 1;
- while (1)
- {
- combined_entry_type *p2;
-
- for (p2 = p + 1 + p->u.syment.n_numaux;
- p2 < pend;
- p2 += 1 + p2->u.syment.n_numaux)
- {
- if (p2->u.syment.n_scnum > 0
- && (section
- == coff_section_from_bfd_index (abfd,
- p2->u.syment.n_scnum)))
- break;
- if (p2->u.syment.n_sclass == C_FILE)
- {
- p2 = pend;
- break;
- }
- }
-
- /* We use <= MAXDIFF here so that if we get a zero length
- file, we actually use the next file entry. */
- if (p2 < pend
- && offset + sec_vma >= (bfd_vma) p2->u.syment.n_value
- && offset + sec_vma - (bfd_vma) p2->u.syment.n_value <= maxdiff)
- {
- *filename_ptr = (char *) p->u.syment._n._n_n._n_offset;
- maxdiff = offset + sec_vma - p2->u.syment.n_value;
- }
-
- /* Avoid endless loops on erroneous files by ensuring that
- we always move forward in the file. */
- if (p - cof->raw_syments >= p->u.syment.n_value)
- break;
-
- p = cof->raw_syments + p->u.syment.n_value;
- if (p > pend || p->u.syment.n_sclass != C_FILE)
- break;
- }
- }
-
- /* Now wander though the raw linenumbers of the section */
- /* If we have been called on this section before, and the offset we
- want is further down then we can prime the lookup loop. */
- sec_data = coff_section_data (abfd, section);
- if (sec_data != NULL
- && sec_data->i > 0
- && offset >= sec_data->offset)
- {
- i = sec_data->i;
- *functionname_ptr = sec_data->function;
- line_base = sec_data->line_base;
- }
- else
- {
- i = 0;
- line_base = 0;
- }
-
- if (section->lineno != NULL)
- {
- bfd_vma last_value = 0;
-
- l = &section->lineno[i];
-
- for (; i < section->lineno_count; i++)
- {
- if (l->line_number == 0)
- {
- /* Get the symbol this line number points at */
- coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym);
- if (coff->symbol.value > offset)
- break;
- *functionname_ptr = coff->symbol.name;
- last_value = coff->symbol.value;
- if (coff->native)
- {
- combined_entry_type *s = coff->native;
- s = s + 1 + s->u.syment.n_numaux;
-
- /* In XCOFF a debugging symbol can follow the
- function symbol. */
- if (s->u.syment.n_scnum == N_DEBUG)
- s = s + 1 + s->u.syment.n_numaux;
-
- /* S should now point to the .bf of the function. */
- if (s->u.syment.n_numaux)
- {
- /* The linenumber is stored in the auxent. */
- union internal_auxent *a = &((s + 1)->u.auxent);
- line_base = a->x_sym.x_misc.x_lnsz.x_lnno;
- *line_ptr = line_base;
- }
- }
- }
- else
- {
- if (l->u.offset > offset)
- break;
- *line_ptr = l->line_number + line_base - 1;
- }
- l++;
- }
-
- /* If we fell off the end of the loop, then assume that this
- symbol has no line number info. Otherwise, symbols with no
- line number info get reported with the line number of the
- last line of the last symbol which does have line number
- info. We use 0x100 as a slop to account for cases where the
- last line has executable code. */
- if (i >= section->lineno_count
- && last_value != 0
- && offset - last_value > 0x100)
- {
- *functionname_ptr = NULL;
- *line_ptr = 0;
- }
- }
-
- /* Cache the results for the next call. */
- if (sec_data == NULL && section->owner == abfd)
- {
- section->used_by_bfd =
- ((PTR) bfd_zalloc (abfd,
- sizeof (struct coff_section_tdata)));
- sec_data = (struct coff_section_tdata *) section->used_by_bfd;
- }
- if (sec_data != NULL)
- {
- sec_data->offset = offset;
- sec_data->i = i;
- sec_data->function = *functionname_ptr;
- sec_data->line_base = line_base;
- }
-
- return true;
-}
-
-int
-coff_sizeof_headers (abfd, reloc)
- bfd *abfd;
- boolean reloc;
-{
- size_t size;
-
- if (reloc == false)
- {
- size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
- }
- else
- {
- size = bfd_coff_filhsz (abfd);
- }
-
- size += abfd->section_count * bfd_coff_scnhsz (abfd);
- return size;
-}
-
-/* Change the class of a coff symbol held by BFD. */
-boolean
-bfd_coff_set_symbol_class (abfd, symbol, class)
- bfd * abfd;
- asymbol * symbol;
- unsigned int class;
-{
- coff_symbol_type * csym;
-
- csym = coff_symbol_from (abfd, symbol);
- if (csym == NULL)
- {
- bfd_set_error (bfd_error_invalid_operation);
- return false;
- }
- else if (csym->native == NULL)
- {
- /* This is an alien symbol which no native coff backend data.
- We cheat here by creating a fake native entry for it and
- then filling in the class. This code is based on that in
- coff_write_alien_symbol(). */
-
- combined_entry_type * native;
-
- native = (combined_entry_type *) bfd_alloc (abfd, sizeof (* native));
- if (native == NULL)
- return false;
-
- memset (native, 0, sizeof (* native));
-
- native->u.syment.n_type = T_NULL;
- native->u.syment.n_sclass = class;
-
- if (bfd_is_und_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
- }
- else if (bfd_is_com_section (symbol->section))
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
- }
- else
- {
- native->u.syment.n_scnum =
- symbol->section->output_section->target_index;
- native->u.syment.n_value = (symbol->value
- + symbol->section->output_offset);
- if (! obj_pe (abfd))
- native->u.syment.n_value += symbol->section->output_section->vma;
-
- /* Copy the any flags from the the file header into the symbol.
- FIXME: Why? */
- native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags;
- }
-
- csym->native = native;
- }
- else
- {
- csym->native->u.syment.n_sclass = class;
- }
-
- return true;
-}