/* Support for the generic parts of COFF, for BFD.
- Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998
+ Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+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. */
#include "coff/internal.h"
#include "libcoff.h"
-static asection bfd_debug_section = { "*DEBUG*" };
+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 *, unsigned int *,
+ bfd_size_type *, asection **, bfd_size_type *));
+static boolean coff_write_alien_symbol
+ PARAMS ((bfd *, asymbol *, unsigned int *, bfd_size_type *,
+ asection **, bfd_size_type *));
+static boolean coff_write_native_symbol
+ PARAMS ((bfd *, coff_symbol_type *, unsigned int *, 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
-DEFUN(make_a_section_from_file,(abfd, hdr, target_index),
- bfd *abfd AND
- struct internal_scnhdr *hdr AND
- unsigned int target_index)
+static boolean
+make_a_section_from_file (abfd, hdr, target_index)
+ bfd *abfd;
+ struct internal_scnhdr *hdr;
+ unsigned int target_index;
{
- asection *return_section;
+ asection *return_section;
char *name;
-
- /* Assorted wastage to null-terminate the name, thanks AT&T! */
- name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
- if (name == NULL) {
- bfd_error = no_memory;
- return false;
- }
- strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
- name[sizeof (hdr->s_name)] = 0;
- return_section = bfd_make_section(abfd, name);
- if (return_section == NULL)
- return_section = bfd_coff_make_section_hook (abfd, name);
+ name = NULL;
- /* Handle several sections of the same name. For example, if an executable
- has two .bss sections, GDB better be able to find both of them
- (PR 3562). */
- if (return_section == NULL)
- return_section = bfd_make_section_anyway (abfd, name);
+ /* 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;
- /* s_paddr is presumed to be = to s_vaddr */
-
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->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->line_filepos = hdr->s_lnnoptr;
return_section->lineno_count = hdr->s_nlnno;
return_section->userdata = NULL;
return_section->next = (asection *) NULL;
- return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr);
+ return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name);
return_section->target_index = target_index;
/* At least on i386-coff, the line number count for a shared library
section must be ignored. */
- if ((return_section->flags & SEC_SHARED_LIBRARY) != 0)
+ if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0)
return_section->lineno_count = 0;
if (hdr->s_nreloc != 0)
/* Read in a COFF object and make it into a BFD. This is used by
ECOFF as well. */
-static
-bfd_target *
-DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
- bfd *abfd AND
- unsigned nscns AND
- struct internal_filehdr *internal_f AND
- struct internal_aouthdr *internal_a)
+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 */
+ size_t readsize; /* length of file_info */
unsigned int scnhsz;
char *external_sections;
- /* Build a play area */
- 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 (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) {
- 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);
- make_a_section_from_file(abfd,&tmp, i+1);
- }
- }
-
-/* make_abs_section(abfd);*/
-
- if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false)
- goto fail;
-
if (!(internal_f->f_flags & F_RELFLG))
abfd->flags |= HAS_RELOC;
if ((internal_f->f_flags & F_EXEC))
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;
+ bfd_get_symcount (abfd) = internal_f->f_nsyms;
if (internal_f->f_nsyms)
abfd->flags |= HAS_SYMS;
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;
+
+ /* 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); */
+
+ if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false)
+ goto fail;
+
return abfd->xvec;
+
fail:
- bfd_release(abfd, tdata);
- return (bfd_target *)NULL;
+ 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 wrong_format if it is
+/* 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. */
-bfd_target *
-DEFUN(coff_object_p,(abfd),
- bfd *abfd)
+const bfd_target *
+coff_object_p (abfd)
+ bfd *abfd;
{
unsigned int filhsz;
unsigned int aoutsz;
- int nscns;
+ int nscns;
PTR filehdr;
struct internal_filehdr internal_f;
struct internal_aouthdr internal_a;
- bfd_error = system_call_error;
-
/* 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)
- return 0;
- bfd_coff_swap_filehdr_in(abfd, filehdr, &internal_f);
+ 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_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,aoutsz, abfd) != aoutsz) {
+ if (bfd_coff_bad_format_hook (abfd, &internal_f) == false)
+ {
+ bfd_set_error (bfd_error_wrong_format);
return 0;
}
- bfd_coff_swap_aouthdr_in(abfd, opthdr, (PTR)&internal_a);
- }
+ nscns = internal_f.f_nscns;
+
+ if (internal_f.f_opthdr)
+ {
+ PTR opthdr;
- /* Seek past the opt hdr stuff */
- bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET);
+ 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));
+ 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. */
-struct sec *
-DEFUN(coff_section_from_bfd_index,(abfd, index),
- bfd *abfd AND
- int index)
+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;
- }
+ if (index == N_ABS)
+ return bfd_abs_section_ptr;
if (index == N_UNDEF)
- {
- return &bfd_und_section;
- }
- if(index == N_DEBUG)
- {
- return &bfd_debug_section;
-
- }
-
- while (answer) {
+ return bfd_und_section_ptr;
+ if (index == N_DEBUG)
+ return bfd_abs_section_ptr;
+
+ while (answer)
+ {
if (answer->target_index == index)
- return answer;
+ return answer;
answer = answer->next;
}
- BFD_ASSERT(0);
- return &bfd_und_section; /* For gcc -W and lint. Never executed. */
+
+ /* 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. */
-unsigned int
-coff_get_symtab_upper_bound(abfd)
-bfd *abfd;
+long
+coff_get_symtab_upper_bound (abfd)
+ bfd *abfd;
{
- if (!bfd_coff_slurp_symbol_table(abfd))
- return 0;
+ if (!bfd_coff_slurp_symbol_table (abfd))
+ return -1;
- return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *));
+ return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *));
}
/* Canonicalize a COFF symbol table. */
-unsigned int
-DEFUN(coff_get_symtab, (abfd, alocation),
- bfd *abfd AND
- asymbol **alocation)
+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;
{
- unsigned int counter = 0;
- coff_symbol_type *symbase;
- coff_symbol_type **location = (coff_symbol_type **) (alocation);
- if (!bfd_coff_slurp_symbol_table(abfd))
- return 0;
-
- symbase = obj_symbols(abfd);
- while (counter < bfd_get_symcount(abfd))
- {
- /* This nasty code looks at the symbol to decide whether or
- not it is descibes a constructor/destructor entry point. It
- is structured this way to (hopefully) speed non matches */
-#if 0
- if (0 && symbase->symbol.name[9] == '$')
+ /* 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)
{
- bfd_constructor_entry(abfd,
- (asymbol **)location,
- symbase->symbol.name[10] == 'I' ?
- "CTOR" : "DTOR");
+ strings = _bfd_coff_read_string_table (abfd);
+ if (strings == NULL)
+ return NULL;
}
-#endif
- *(location++) = symbase++;
- counter++;
+ 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;
}
- *location++ = 0;
- return bfd_get_symcount(abfd);
+
+ 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
-DEFUN(coff_count_linenumbers,(abfd),
- bfd *abfd)
+coff_count_linenumbers (abfd)
+ bfd *abfd;
{
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int i;
+ unsigned int limit = bfd_get_symcount (abfd);
+ unsigned int i;
int total = 0;
- asymbol **p;
- {
- asection *s = abfd->sections->output_section;
- while (s) {
- BFD_ASSERT(s->lineno_count == 0);
- s = s->next;
- }
- }
-
-
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
- asymbol *q_maybe = *p;
- if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) {
- coff_symbol_type *q = coffsymbol(q_maybe);
- if (q->lineno) {
- /*
- This symbol has a linenumber, increment the owning
- section's linenumber count
- */
- alent *l = q->lineno;
- q->symbol.section->output_section->lineno_count++;
- total ++;
- l++;
- while (l->line_number) {
- total ++;
- q->symbol.section->output_section->lineno_count++;
- l++;
+ 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_asymbol_flavour (q_maybe) == bfd_target_coff_flavour)
+ {
+ 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. */
+/*ARGSUSED*/
coff_symbol_type *
-DEFUN(coff_symbol_from,(ignore_abfd, symbol),
- bfd *ignore_abfd AND
- asymbol *symbol)
+coff_symbol_from (ignore_abfd, symbol)
+ bfd *ignore_abfd;
+ asymbol *symbol;
{
- if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour)
- return (coff_symbol_type *)NULL;
+ if (bfd_asymbol_flavour (symbol) != bfd_target_coff_flavour)
+ return (coff_symbol_type *) NULL;
- if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL)
- 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;
+ return (coff_symbol_type *) symbol;
}
static void
-DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment),
-coff_symbol_type *coff_symbol_ptr AND
-struct internal_syment *syment)
+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) {
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else if (coff_symbol_ptr->symbol.section == & bfd_und_section) {
- syment->n_scnum = N_UNDEF;
- syment->n_value = 0;
- }
- 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 +
- 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;
+ 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)
+ {
+ 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;
+ }
+ 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 +=
+ 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
+/* 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.
+ 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. */
-*/
-void
-DEFUN(coff_renumber_symbols,(bfd_ptr),
- bfd *bfd_ptr)
+boolean
+coff_renumber_symbols (bfd_ptr, first_undef)
+ bfd *bfd_ptr;
+ int *first_undef;
{
- unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
+ 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;
+ 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. */
+ 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;
- int i;
+ unsigned int i;
- newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr,
- sizeof (asymbol *)
- * (symbol_count + 1));
+ 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]->section != &bfd_und_section)
+ 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]->section == &bfd_und_section)
+ 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]);
- if (coff_symbol_ptr && coff_symbol_ptr->native) {
+ {
+ 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(coff_symbol_ptr, &(s->u.syment));
- }
- for (i = 0; i < s->u.syment.n_numaux + 1; i++) {
- s[i].offset = native_index ++;
- }
+ {
+ 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 {
+ 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.
+/* 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
-DEFUN(coff_mangle_symbols,(bfd_ptr),
- bfd *bfd_ptr)
+coff_mangle_symbols (bfd_ptr)
+ bfd *bfd_ptr;
{
- unsigned int symbol_count = bfd_get_symcount(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]);
+ {
+ coff_symbol_type *coff_symbol_ptr =
+ coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]);
- if (coff_symbol_ptr && coff_symbol_ptr->native) {
+ if (coff_symbol_ptr && coff_symbol_ptr->native)
+ {
int i;
combined_entry_type *s = coff_symbol_ptr->native;
- 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 (s->fix_value)
+ {
+ /* FIXME: We should use a union here. */
+ s->u.syment.n_value =
+ ((combined_entry_type *) s->u.syment.n_value)->offset;
+ s->fix_value = 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 (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 int string_size;
-
static void
-DEFUN(coff_fix_symbol_name,(abfd, symbol, native),
- bfd *abfd AND
- asymbol *symbol AND
- combined_entry_type *native)
+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;
+ unsigned int name_length;
union internal_auxent *auxent;
- char * name = ( char *)(symbol->name);
+ 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 (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) {
- strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN);
- auxent = &(native+1)->u.auxent;
+ if (native->u.syment.n_sclass == C_FILE
+ && native->u.syment.n_numaux > 0)
+ {
+ strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN);
+ auxent = &(native + 1)->u.auxent;
- 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 + 4;
- auxent->x_file.x_n.x_zeroes = 0;
- string_size += name_length + 1;
- }
- }
- else {
- strncpy(auxent->x_file.x_fname, name, FILNMLEN);
- if (name_length > FILNMLEN) {
- name[FILNMLEN] = '\0';
- }
+ 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
- { /* NOT A C_FILE SYMBOL */
- if (name_length <= SYMNMLEN) {
+ {
+ if (name_length <= SYMNMLEN)
+ {
/* This name will fit into the symbol neatly */
- strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN);
+ strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN);
}
- else {
- native->u.syment._n._n_n._n_offset = string_size + 4;
+ 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 += name_length + 1;
+ *string_size_p += name_length + 1;
}
- }
+ else
+ {
+ long filepos;
+ bfd_byte buf[2];
+
+ /* 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);
+ 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) 2)
+ || !bfd_set_section_contents (abfd,
+ *debug_string_section_p,
+ (PTR) symbol->name,
+ ((file_ptr) *debug_string_size_p
+ + 2),
+ (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 + 2;
+ native->u.syment._n._n_n._n_zeroes = 0;
+ *debug_string_size_p += name_length + 3;
+ }
+ }
}
-#define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx))
+/* 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. */
-static unsigned int
-DEFUN(coff_write_symbol,(abfd, symbol, native, written),
-bfd *abfd AND
-asymbol *symbol AND
-combined_entry_type *native AND
-unsigned int written)
+#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;
+ unsigned int *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;
+ 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;
- /* @@ bfd_debug_section isn't accessible outside this file, but we know
- that C_FILE symbols belong there. So move them. */
if (native->u.syment.n_sclass == C_FILE)
- symbol->section = &bfd_debug_section;
+ symbol->flags |= BSF_DEBUGGING;
- if (symbol->section == &bfd_abs_section)
- {
- native->u.syment.n_scnum = N_ABS;
- }
- else if (symbol->section == &bfd_debug_section)
- {
- native->u.syment.n_scnum = N_DEBUG;
- }
- else if (symbol->section == &bfd_und_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);
+ 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);
- bfd_coff_swap_sym_out(abfd, &native->u.syment, buf);
- bfd_write(buf, 1, symesz, abfd);
+ 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)
auxesz = bfd_coff_auxesz (abfd);
buf = bfd_alloc (abfd, auxesz);
- for (j = 0; j < native->u.syment.n_numaux; j++)
+ 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,
- buf);
- bfd_write(buf, 1, auxesz, abfd);
+ 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);
}
- /*
- Reuse somewhere in the symbol to keep the index
- */
- set_index(symbol, written);
- return written + 1 + numaux;
+
+ /* 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 unsigned int
-DEFUN(coff_write_alien_symbol,(abfd, symbol, written),
- bfd *abfd AND
- asymbol *symbol AND
- unsigned int written)
+static boolean
+coff_write_alien_symbol (abfd, symbol, written, string_size_p,
+ debug_string_section_p, debug_string_size_p)
+ bfd *abfd;
+ asymbol *symbol;
+ unsigned int *written;
+ bfd_size_type *string_size_p;
+ asection **debug_string_section_p;
+ bfd_size_type *debug_string_size_p;
{
- /*
- This symbol has been created by the loader, or come from a non
- coff format. It has no native element to inherit, make our
- own
- */
combined_entry_type *native;
combined_entry_type dummy;
+
native = &dummy;
- native->u.syment.n_type = T_NULL;
- native->u.syment.n_flags = 0;
- if (symbol->section == &bfd_und_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
+ 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) {
- /*
- remove name so it doesn't take up any space
- */
- symbol->name = "";
+ {
+ 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_section->vma +
- symbol->section->output_offset;
- /* Copy the any flags from the the file hdr into the symbol */
+ else if (symbol->flags & BSF_DEBUGGING)
{
- 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;
- }
+ /* 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;
+ native->u.syment.n_type = 0;
if (symbol->flags & BSF_LOCAL)
- native->u.syment.n_sclass = C_STAT;
+ 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;
+ native->u.syment.n_sclass = C_EXT;
+ native->u.syment.n_numaux = 0;
- return coff_write_symbol(abfd, symbol, native, written);
+ return coff_write_symbol (abfd, symbol, native, written, string_size_p,
+ debug_string_section_p, debug_string_size_p);
}
-static unsigned int
-DEFUN(coff_write_native_symbol,(abfd, symbol, written),
-bfd *abfd AND
-coff_symbol_type *symbol AND
-unsigned int written)
+/* 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;
+ unsigned int *written;
+ bfd_size_type *string_size_p;
+ asection **debug_string_section_p;
+ bfd_size_type *debug_string_size_p;
{
- /*
- Does this symbol have an ascociated line number - if so then
- make it remember this symbol index. Also tag the auxent of
- this symbol to point to the right place in the lineno table
- */
combined_entry_type *native = symbol->native;
+ alent *lineno = symbol->lineno;
- alent *lineno = symbol->lineno;
-
- if (lineno && !symbol->done_lineno) {
- unsigned int count = 0;
- lineno[count].u.offset = written;
- if (native->u.syment.n_numaux) {
- union internal_auxent *a = &((native+1)->u.auxent);
+ /* 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;
- }
- /*
- And count and relocate all other linenumbers
- */
+ a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
+ symbol->symbol.section->output_section->moving_line_filepos;
+ }
- count++;
- while (lineno[count].line_number) {
+ /* 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;
-
+ /* 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;
+ lineno[count].u.offset +=
+ (symbol->symbol.section->output_section->vma
+ + symbol->symbol.section->output_offset);
#endif
- count++;
+ count++;
+ }
+ symbol->done_lineno = true;
+
+ symbol->symbol.section->output_section->moving_line_filepos +=
+ count * bfd_coff_linesz (abfd);
}
- 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);
+
+ return coff_write_symbol (abfd, &(symbol->symbol), native, written,
+ string_size_p, debug_string_section_p,
+ debug_string_size_p);
}
-void
-DEFUN(coff_write_symbols,(abfd),
- bfd *abfd)
-{
- unsigned int i;
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int written = 0;
+/* Write out the COFF symbols. */
- asymbol **p;
+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);
+ unsigned int 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 */
- bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
+ 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);
+ {
+ 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 (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)
{
- written = coff_write_alien_symbol(abfd, symbol, written);
+ /* This is not a COFF symbol, so it certainly is not a
+ file name, nor does it go in the .debug section. */
+ maxlen = SYMNMLEN;
}
- else
+ else if (bfd_coff_symname_in_debug (abfd,
+ &c_symbol->native->u.syment))
{
- written = coff_write_native_symbol(abfd, c_symbol, written);
+ /* 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)
+ maxlen = FILNMLEN;
+ else
+ maxlen = SYMNMLEN;
- }
-
- bfd_get_symcount(abfd) = written;
+ 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;
+ }
- /* Now write out strings */
+ /* 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))));
- if (string_size != 0)
- {
- unsigned int size = string_size + 4;
- bfd_byte buffer[4];
-
- bfd_h_put_32(abfd, size, buffer);
- bfd_write((PTR) buffer, 1, sizeof(buffer), abfd);
- for (p = abfd->outsymbols, i = 0;
- i < limit;
- i++, p++)
- {
- asymbol *q = *p;
- size_t name_length = strlen(q->name);
- int maxlen;
- coff_symbol_type* c_symbol = coff_symbol_from(abfd, q);
- maxlen = ((c_symbol != NULL && c_symbol->native != NULL) &&
- (c_symbol->native->u.syment.n_sclass == C_FILE)) ?
- FILNMLEN : SYMNMLEN;
-
- if (name_length > maxlen) {
- bfd_write((PTR) (q->name), 1, name_length + 1, abfd);
- }
- }
- }
- 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 = 4;
- bfd_byte buffer[4];
-
- bfd_h_put_32 (abfd, size, buffer);
- bfd_write((PTR) buffer, 1, sizeof (buffer), abfd);
- }
+ return true;
}
-void
-DEFUN(coff_write_linenumbers,(abfd),
- bfd *abfd)
+boolean
+coff_write_linenumbers (abfd)
+ bfd *abfd;
{
- asection *s;
+ asection *s;
bfd_size_type linesz;
PTR buff;
linesz = bfd_coff_linesz (abfd);
buff = bfd_alloc (abfd, linesz);
- for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
- if (s->lineno_count) {
- asymbol **q = abfd->outsymbols;
- bfd_seek(abfd, s->line_filepos, SEEK_SET);
- /* 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);
- bfd_write(buff, 1, linesz, abfd);
- 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);
- bfd_write(buff, 1, linesz, abfd);
- l++;
+ 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++;
}
- }
}
- q++;
- }
}
- }
bfd_release (abfd, buff);
+ return true;
}
-alent *
-DEFUN(coff_get_lineno,(ignore_abfd, symbol),
- bfd *ignore_abfd AND
- asymbol *symbol)
+/*ARGSUSED */
+alent *
+coff_get_lineno (ignore_abfd, symbol)
+ bfd *ignore_abfd;
+ asymbol *symbol;
{
- return coffsymbol(symbol)->lineno;
+ 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;
/* 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
+ {
+ 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_by_size_t (abfd, sizeof (*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); @@ ??? */
+/* 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;
return sym;
}
+#endif /* 0 */
+
/* This function transforms the offsets into the symbol table into
pointers to syments. */
static void
-DEFUN(coff_pointerize_aux,(abfd, table_base, type, class, auxent),
-bfd *abfd AND
-combined_entry_type *table_base AND
-int type AND
-int class AND
-combined_entry_type *auxent)
+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;
+ 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) {
- 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;
+ 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) {
+ 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;
+ 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 *
-DEFUN(build_string_table,(abfd),
-bfd *abfd)
+copy_name (abfd, name, maxlen)
+ bfd *abfd;
+ char *name;
+ int maxlen;
{
- char string_table_size_buffer[4];
- unsigned int string_table_size;
- char *string_table;
-
- /* At this point we should be "seek"'d to the end of the
- symbols === the symbol table size. */
- if (bfd_read((char *) string_table_size_buffer,
- sizeof(string_table_size_buffer),
- 1, abfd) != sizeof(string_table_size)) {
- bfd_error = system_call_error;
+ 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);
- } /* on error */
+ 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;
+ }
- string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer);
+ obj_coff_external_syms (abfd) = syms;
- if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) {
- bfd_error = no_memory;
- return (NULL);
- } /* on mallocation error */
- if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) {
- bfd_error = system_call_error;
- return (NULL);
- }
- return string_table;
+ return true;
}
-/* 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. */
+/* 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. */
-static char *
-DEFUN(build_debug_section,(abfd),
- bfd *abfd)
+const char *
+_bfd_coff_read_string_table (abfd)
+ bfd *abfd;
{
- char *debug_section;
- long position;
+ char extstrsize[STRING_SIZE_SIZE];
+ size_t strsize;
+ char *strings;
- asection *sect = bfd_get_section_by_name (abfd, ".debug");
+ if (obj_coff_strings (abfd) != NULL)
+ return obj_coff_strings (abfd);
- if (!sect) {
- bfd_error = no_debug_section;
- return NULL;
- }
+ if (obj_sym_filepos (abfd) == 0)
+ {
+ bfd_set_error (bfd_error_no_symbols);
+ return NULL;
+ }
- debug_section = (PTR) bfd_alloc (abfd,
- bfd_get_section_size_before_reloc (sect));
- if (debug_section == NULL) {
- bfd_error = no_memory;
+ 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;
- /* 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. */
+ /* 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
+ }
- position = bfd_tell (abfd);
- bfd_seek (abfd, sect->filepos, SEEK_SET);
- if (bfd_read (debug_section,
- bfd_get_section_size_before_reloc (sect), 1, abfd)
- != bfd_get_section_size_before_reloc(sect)) {
- bfd_error = system_call_error;
+ 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;
- }
- bfd_seek (abfd, position, SEEK_SET);
- return debug_section;
+
+ 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. */
-/* 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 *
-DEFUN(copy_name,(abfd, name, maxlen),
- bfd *abfd AND
- char *name AND
- int maxlen)
+boolean
+_bfd_coff_free_symbols (abfd)
+ bfd *abfd;
{
- int len;
- char *newname;
-
- for (len = 0; len < maxlen; ++len) {
- if (name[len] == '\0') {
- break;
+ 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 ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) {
- bfd_error = no_memory;
- return (NULL);
- }
- strncpy(newname, name, len);
- newname[len] = '\0';
- return newname;
+ 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
terminated string. */
combined_entry_type *
-DEFUN(coff_get_normalized_symtab,(abfd),
-bfd *abfd)
+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;
+ combined_entry_type *internal;
+ combined_entry_type *internal_ptr;
+ combined_entry_type *symbol_ptr;
+ combined_entry_type *internal_end;
bfd_size_type symesz;
- PTR raw;
char *raw_src;
char *raw_end;
- char *string_table = NULL;
- char *debug_section = NULL;
- unsigned long size;
+ const char *string_table = NULL;
+ char *debug_section = NULL;
+ unsigned long size;
- unsigned int raw_size;
- if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) {
- return obj_raw_syments(abfd);
- }
- if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) {
- bfd_error = no_symbols;
- return (NULL);
- }
+ if (obj_raw_syments (abfd) != NULL)
+ return obj_raw_syments (abfd);
- internal = (combined_entry_type *)bfd_alloc(abfd, size);
- internal_end = internal + bfd_get_symcount(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);
- symesz = bfd_coff_symesz (abfd);
- raw_size = bfd_get_symcount(abfd) * symesz;
- raw = bfd_alloc(abfd,raw_size);
+ if (! _bfd_coff_get_external_symbols (abfd))
+ return NULL;
+
+ raw_src = (char *) obj_coff_external_syms (abfd);
- if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1
- || bfd_read(raw, raw_size, 1, abfd) != raw_size) {
- bfd_error = system_call_error;
- return (NULL);
- }
/* mark the end of the symbols */
- raw_end = (char *) raw + bfd_get_symcount(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.
- */
+ 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 (raw_src = (char *) raw, internal_ptr = internal;
+ for (internal_ptr = internal;
raw_src < raw_end;
- raw_src += symesz, internal_ptr++) {
+ raw_src += symesz, internal_ptr++)
+ {
unsigned int i;
- bfd_coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment);
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
+ 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;
-
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
- bfd_coff_swap_aux_in(abfd, (PTR) raw_src,
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- &(internal_ptr->u.auxent));
- /* Remember that bal entries arn't pointerized */
- if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC)
+ i++)
{
-
- coff_pointerize_aux(abfd,
- internal,
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- internal_ptr);
- }
-
- }
+ 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 all the raw stuff */
- bfd_release(abfd, raw);
+ /* 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) {
- /* 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 = build_string_table(abfd);
- }
-
- internal_ptr->u.syment._n._n_n._n_offset =
- (long) (string_table - 4 +
- (internal_ptr+1)->u.auxent.x_file.x_n.x_offset);
- }
- else {
- /* ordinary short filename, put into memory anyway */
- internal_ptr->u.syment._n._n_n._n_offset = (long)
- copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname,
- FILNMLEN);
- }
- }
- 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) {
- bfd_error = no_memory;
+ 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 */
+ 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,
+ FILNMLEN);
+ }
+ }
+ }
+ 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);
- } /* on error */
- 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 (!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 = build_string_table(abfd);
- }
- internal_ptr->u.syment._n._n_n._n_offset = (long int)
- (string_table - 4 + 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;
- }
+ 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;
- obj_raw_syment_count(abfd) = internal_ptr - internal;
+ obj_raw_syments (abfd) = internal;
+ BFD_ASSERT (obj_raw_syment_count (abfd)
+ == (unsigned int) (internal_ptr - internal));
return (internal);
} /* coff_get_normalized_symtab() */
-unsigned int
-DEFUN (coff_get_reloc_upper_bound, (abfd, asect),
- bfd *abfd AND
- sec_ptr asect)
+long
+coff_get_reloc_upper_bound (abfd, asect)
+ bfd *abfd;
+ sec_ptr asect;
{
- if (bfd_get_format(abfd) != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
- return (asect->reloc_count + 1) * sizeof(arelent *);
+ if (bfd_get_format (abfd) != bfd_object)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+ return (asect->reloc_count + 1) * sizeof (arelent *);
}
asymbol *
-DEFUN (coff_make_empty_symbol, (abfd),
- bfd *abfd)
+coff_make_empty_symbol (abfd)
+ bfd *abfd;
{
- coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type));
- if (new == NULL) {
- bfd_error = no_memory;
+ coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
+ if (new == NULL)
return (NULL);
- } /* on error */
+ memset (new, 0, sizeof *new);
new->symbol.section = 0;
new->native = 0;
new->lineno = (alent *) NULL;
PTR ptr;
unsigned long sz;
{
- coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type));
- if (new == NULL) {
- bfd_error = no_memory;
+ coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
+ if (new == NULL)
return (NULL);
- } /* on error */
- /* @@ This shouldn't be using a constant multiplier. */
+ /* @@ 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);
- new->symbol.section = &bfd_debug_section;
+ 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;
}
+/*ARGSUSED */
void
coff_get_symbol_info (abfd, symbol, ret)
bfd *abfd;
symbol_info *ret;
{
bfd_symbol_info (symbol, ret);
+ if (coffsymbol (symbol)->native != NULL
+ && coffsymbol (symbol)->native->fix_value)
+ {
+ combined_entry_type *psym;
+
+ psym = ((combined_entry_type *)
+ coffsymbol (symbol)->native->u.syment.n_value);
+ ret->value = (bfd_vma) (psym - 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 = ((combined_entry_type *) psyment->n_value
+ - 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. */
case bfd_print_symbol_more:
fprintf (file, "coff %s %s",
- coffsymbol(symbol)->native ? "n" : "g",
- coffsymbol(symbol)->lineno ? "l" : " ");
+ coffsymbol (symbol)->native ? "n" : "g",
+ coffsymbol (symbol)->lineno ? "l" : " ");
break;
case bfd_print_symbol_all:
- if (coffsymbol(symbol)->native)
+ if (coffsymbol (symbol)->native)
{
+ unsigned long 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,"[%3d]", combined - root);
+ struct lineno_cache_entry *l = coffsymbol (symbol)->lineno;
+
+ fprintf (file, "[%3ld]", (long) (combined - root));
+
+ if (! combined->fix_value)
+ val = (unsigned long) combined->u.syment.n_value;
+ else
+ val = ((unsigned long)
+ ((combined_entry_type *) combined->u.syment.n_value
+ - root));
fprintf (file,
- "(sc %2d)(fl 0x%02x)(ty %3x)(sc %3d) (nx %d) 0x%08lx %s",
+ "(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) combined->u.syment.n_value,
+ val,
symbol->name);
- for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
+ for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
{
combined_entry_type *auxp = combined + aux + 1;
long tagndx;
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;
- default:
+ 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 */
+
+ 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)
+ while (l->line_number)
{
fprintf (file, "\n%4d : 0x%lx",
l->line_number,
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" : " ",
+ 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;
+ const char *name;
+{
+ return name[0] == '.' && name[1] == 'L';
+}
+
/* 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
-DEFUN(coff_find_nearest_line,(abfd,
- section,
- ignore_symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr),
- bfd *abfd AND
- asection *section AND
- asymbol **ignore_symbols AND
- bfd_vma offset AND
- CONST char **filename_ptr AND
- CONST char **functionname_ptr AND
- unsigned int *line_ptr)
+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;
{
- static bfd *cache_abfd;
- static asection *cache_section;
- static bfd_vma cache_offset;
- static unsigned int cache_i;
- static CONST char *cache_function;
- static unsigned int line_base = 0;
-
- unsigned int i = 0;
- coff_data_type *cof = coff_data(abfd);
+ 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;
- alent *l;
-
+ 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;
*filename_ptr = 0;
*functionname_ptr = 0;
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;
- for (i = 0; i < cof->raw_syment_count; i++) {
- if (p->u.syment.n_sclass == C_FILE) {
- /* File name has been moved into symbol */
+ /* 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;
- break;
+ 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;
+ }
+ }
+
+ 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;
+ }
}
- p += 1 + p->u.syment.n_numaux;
- }
+
/* Now wander though the raw linenumbers of the section */
- /*
- If this is the same BFD as we were previously called with and this is
- the same section, and the offset we want is further down then we can
- prime the lookup loop
- */
- if (abfd == cache_abfd &&
- section == cache_section &&
- offset >= cache_offset) {
- i = cache_i;
- *functionname_ptr = cache_function;
- }
- else {
- i = 0;
- }
- l = §ion->lineno[i];
+ /* 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;
+ }
- 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;
- if (coff->native) {
- combined_entry_type *s = coff->native;
- 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;
+ if (section->lineno != NULL)
+ {
+ l = §ion->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;
+ 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++;
}
- }
- }
- else {
- if (l->u.offset > offset)
- break;
- *line_ptr = l->line_number + line_base - 1;
}
- l++;
- }
- cache_abfd = abfd;
- cache_section = section;
- cache_offset = offset;
- cache_i = i;
- cache_function = *functionname_ptr;
+ /* 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
-DEFUN(coff_sizeof_headers,(abfd, reloc),
- bfd *abfd AND
- boolean reloc)
+coff_sizeof_headers (abfd, reloc)
+ bfd *abfd;
+ boolean reloc;
{
- size_t size;
+ size_t size;
- if (reloc == false) {
- size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
+ if (reloc == false)
+ {
+ size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
}
- else {
- size = bfd_coff_filhsz (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;
- size += abfd->section_count * bfd_coff_scnhsz (abfd);
- return size;
+ 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;
}
+
projects / external / binutils.git / blobdiff