/* Support for the generic parts of COFF, for BFD.
- Copyright 1990, 91, 92, 93, 94, 1995 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 boolean coff_write_symbol PARAMS ((bfd *, asymbol *,
- combined_entry_type *,
- unsigned int *));
-static boolean coff_write_alien_symbol PARAMS ((bfd *, asymbol *,
- unsigned int *));
-static boolean coff_write_native_symbol PARAMS ((bfd *, coff_symbol_type *,
- unsigned int *));
+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)
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)
+ name = NULL;
+
+ /* Handle long section names as in PE. */
+ if (bfd_coff_long_section_names (abfd)
+ && hdr->s_name[0] == '/')
{
- bfd_set_error (bfd_error_no_memory);
- return false;
+ 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);
+ }
}
- 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);
- /* 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);
+ 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;
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;
- /* Build a play area */
+ 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;
readsize = nscns * scnhsz;
external_sections = (char *) bfd_alloc (abfd, readsize);
if (!external_sections)
- {
- bfd_set_error (bfd_error_no_memory);
- goto fail;
- }
+ goto fail;
if (bfd_read ((PTR) external_sections, 1, readsize, abfd) != readsize)
goto fail;
for (i = 0; i < nscns; i++)
{
struct internal_scnhdr tmp;
- bfd_coff_swap_scnhdr_in (abfd, (PTR) (external_sections + i * scnhsz),
+ bfd_coff_swap_scnhdr_in (abfd,
+ (PTR) (external_sections + i * scnhsz),
(PTR) & tmp);
- make_a_section_from_file (abfd, &tmp, i + 1);
+ if (! make_a_section_from_file (abfd, &tmp, i + 1))
+ goto fail;
}
}
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))
- 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;
-
return abfd->xvec;
+
fail:
bfd_release (abfd, tdata);
+ abfd->flags = oflags;
+ bfd_get_start_address (abfd) = ostart;
return (const bfd_target *) NULL;
}
opthdr = bfd_alloc (abfd, aoutsz);
if (opthdr == NULL)
return 0;;
- if (bfd_read (opthdr, 1, aoutsz, abfd) != aoutsz)
+ 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);
+ bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) &internal_a);
}
- /* Seek past the opt hdr stuff */
- if (bfd_seek (abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET)
- != 0)
- return NULL;
-
return coff_real_object_p (abfd, nscns, &internal_f,
(internal_f.f_opthdr != 0
? &internal_a
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_symbol_type *q = coffsymbol (q_maybe);
- if (q->lineno != NULL)
+ /* 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. */
}
static void
-fixup_symbol_value (coff_symbol_ptr, syment)
+fixup_symbol_value (abfd, coff_symbol_ptr, syment)
+ bfd *abfd;
coff_symbol_type *coff_symbol_ptr;
struct internal_syment *syment;
{
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;
+ 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
{
do that here too. */
boolean
-coff_renumber_symbols (bfd_ptr)
+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 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)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ return false;
bfd_ptr->outsymbols = newsyms;
for (i = 0; i < symbol_count; i++)
- if (!bfd_is_und_section (symbol_ptr_ptr[i]->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 (bfd_is_und_section (symbol_ptr_ptr[i]->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]);
+ 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;
/* Modify the symbol values according to their section and
type */
- fixup_symbol_value (coff_symbol_ptr, &(s->u.syment));
+ 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++;
}
}
obj_conv_table_size (bfd_ptr) = native_index;
+
return true;
}
((combined_entry_type *) 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;
}
}
-static bfd_size_type string_size;
-static bfd_size_type debug_string_size;
-static asection *debug_string_section;
-
static void
-coff_fix_symbol_name (abfd, symbol, 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;
union internal_auxent *auxent;
}
name_length = strlen (name);
- if (native->u.syment.n_sclass == C_FILE)
+ 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;
}
else
{
- auxent->x_file.x_n.x_offset = string_size + STRING_SIZE_SIZE;
+ auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE;
auxent->x_file.x_n.x_zeroes = 0;
- string_size += name_length + 1;
+ *string_size_p += name_length + 1;
}
}
else
}
}
else
- { /* NOT A C_FILE SYMBOL */
+ {
if (name_length <= SYMNMLEN)
{
/* This name will fit into the symbol neatly */
}
else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment))
{
- native->u.syment._n._n_n._n_offset = string_size + STRING_SIZE_SIZE;
+ 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
{
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 == (asection *) NULL)
- debug_string_section = bfd_get_section_by_name (abfd, ".debug");
+ 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,
+ *debug_string_section_p,
(PTR) buf,
- (file_ptr) debug_string_size,
+ (file_ptr) *debug_string_size_p,
(bfd_size_type) 2)
|| !bfd_set_section_contents (abfd,
- debug_string_section,
+ *debug_string_section_p,
(PTR) symbol->name,
- (file_ptr) debug_string_size + 2,
+ ((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 + 2;
+ 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 += name_length + 3;
+ *debug_string_size_p += name_length + 3;
}
}
}
/* Write a symbol out to a COFF file. */
static boolean
-coff_write_symbol (abfd, symbol, native, written)
+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;
if (native->u.syment.n_sclass == C_FILE)
symbol->flags |= BSF_DEBUGGING;
- if (symbol->flags & BSF_DEBUGGING)
+ if (symbol->flags & BSF_DEBUGGING
+ && bfd_is_abs_section (symbol->section))
{
native->u.syment.n_scnum = N_DEBUG;
}
symbol->section->output_section->target_index;
}
- coff_fix_symbol_name (abfd, symbol, native);
+ 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)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ return false;
bfd_coff_swap_sym_out (abfd, &native->u.syment, buf);
if (bfd_write (buf, 1, symesz, abfd) != symesz)
return false;
auxesz = bfd_coff_auxesz (abfd);
buf = bfd_alloc (abfd, auxesz);
if (!buf)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ return false;
for (j = 0; j < native->u.syment.n_numaux; j++)
{
bfd_coff_swap_aux_out (abfd,
or we may be linking a non COFF file to a COFF file. */
static boolean
-coff_write_alien_symbol (abfd, symbol, written)
+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;
{
combined_entry_type *native;
combined_entry_type dummy;
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);
+ 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_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);
+ 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)
+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;
{
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)
+ if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL)
{
unsigned int count = 0;
lineno[count].u.offset = *written;
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);
}
/* Write out the COFF symbols. */
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 */
if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
return false;
if (c_symbol == (coff_symbol_type *) NULL
|| c_symbol->native == (combined_entry_type *) NULL)
{
- if (!coff_write_alien_symbol (abfd, symbol, &written))
+ 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))
+ if (!coff_write_native_symbol (abfd, c_symbol, &written,
+ &string_size, &debug_string_section,
+ &debug_string_size))
return false;
}
}
#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++)
Don't write it into the string table. */
maxlen = name_length;
}
- else if (c_symbol->native->u.syment.n_sclass == C_FILE)
+ else if (c_symbol->native->u.syment.n_sclass == C_FILE
+ && c_symbol->native->u.syment.n_numaux > 0)
maxlen = FILNMLEN;
else
maxlen = SYMNMLEN;
linesz = bfd_coff_linesz (abfd);
buff = bfd_alloc (abfd, linesz);
if (!buff)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ return false;
for (s = abfd->sections; s != (asection *) NULL; s = s->next)
{
if (s->lineno_count)
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;
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 sym;
}
+#endif /* 0 */
+
/* This function transforms the offsets into the symbol table into
pointers to syments. */
static void
-coff_pointerize_aux (abfd, table_base, type, class, auxent)
+coff_pointerize_aux (abfd, table_base, symbol, indaux, auxent)
bfd *abfd;
combined_entry_type *table_base;
- int type;
- int class;
+ 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;
/* 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)
+ 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);
+ 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
}
}
-static char *
-build_string_table (abfd)
- bfd *abfd;
-{
- char string_table_size_buffer[STRING_SIZE_SIZE];
- 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))
- return (NULL);
-
-#if STRING_SIZE_SIZE == 4
- string_table_size = bfd_h_get_32 (abfd, (bfd_byte *) string_table_size_buffer);
-#else
- #error Change bfd_h_get_32
-#endif
-
- if ((string_table = (PTR) bfd_alloc (abfd,
- string_table_size -= STRING_SIZE_SIZE))
- == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (NULL);
- } /* on mallocation error */
- if (bfd_read (string_table, string_table_size, 1, abfd) != string_table_size)
- return (NULL);
- return string_table;
-}
-
/* 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. */
debug_section = (PTR) bfd_alloc (abfd,
bfd_get_section_size_before_reloc (sect));
if (debug_section == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return 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.
}
if ((newname = (PTR) bfd_alloc (abfd, len + 1)) == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (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-
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;
+ const char *string_table = NULL;
char *debug_section = NULL;
unsigned long size;
- unsigned int raw_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_alloc (abfd, size);
+ internal = (combined_entry_type *) bfd_zalloc (abfd, size);
if (internal == NULL && size != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
+ return NULL;
internal_end = internal + obj_raw_syment_count (abfd);
- symesz = bfd_coff_symesz (abfd);
- raw_size = obj_raw_syment_count (abfd) * symesz;
- raw = bfd_alloc (abfd, raw_size);
- if (raw == NULL && raw_size != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
-
- if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) == -1
- || bfd_read (raw, raw_size, 1, abfd) != raw_size)
+ if (! _bfd_coff_get_external_symbols (abfd))
return NULL;
+ raw_src = (char *) obj_coff_external_syms (abfd);
+
/* mark the end of the symbols */
- raw_end = (char *) raw + obj_raw_syment_count (abfd) * symesz;
+ 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++)
{
unsigned int i;
bfd_coff_swap_sym_in (abfd, (PTR) raw_src,
(PTR) & internal_ptr->u.syment);
- internal_ptr->fix_value = 0;
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
- internal_ptr->fix_scnlen = 0;
symbol_ptr = internal_ptr;
for (i = 0;
{
internal_ptr++;
raw_src += symesz;
-
- internal_ptr->fix_value = 0;
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
- internal_ptr->fix_scnlen = 0;
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));
- /* Remember that bal entries arn't pointerized */
- if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC)
- {
-
- coff_pointerize_aux (abfd,
- internal,
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- internal_ptr);
- }
-
+ coff_pointerize_aux (abfd, internal, symbol_ptr, i,
+ internal_ptr);
}
}
- /* Free all the raw stuff */
- if (raw != NULL)
- 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++)
{
/* the filename is a long one, point into the string table */
if (string_table == NULL)
- string_table = build_string_table (abfd);
+ {
+ 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 - STRING_SIZE_SIZE +
- (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset);
+ ((long)
+ (string_table
+ + (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);
+ 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
} /* possible lengths of this string. */
if ((newstring = (PTR) bfd_alloc (abfd, ++i)) == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (NULL);
- } /* on error */
+ 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;
/* 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
- - STRING_SIZE_SIZE
- + internal_ptr->u.syment._n._n_n._n_offset);
+ {
+ 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
{
}
obj_raw_syments (abfd) = internal;
- BFD_ASSERT (obj_raw_syment_count (abfd) == internal_ptr - internal);
+ BFD_ASSERT (obj_raw_syment_count (abfd)
+ == (unsigned int) (internal_ptr - internal));
return (internal);
} /* coff_get_normalized_symtab() */
{
coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
if (new == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (NULL);
- } /* on error */
+ return (NULL);
memset (new, 0, sizeof *new);
new->symbol.section = 0;
new->native = 0;
{
coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type));
if (new == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (NULL);
- } /* on error */
- /* @@ This shouldn't be using a constant multiplier. */
+ 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)
- {
- bfd_set_error (bfd_error_no_memory);
- return (NULL);
- } /* on error */
+ return (NULL);
new->symbol.section = bfd_abs_section_ptr;
new->symbol.flags = BSF_DEBUGGING;
new->lineno = (alent *) NULL;
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_all:
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);
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,
"(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%08lx %s",
combined->u.syment.n_scnum,
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++)
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:
(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 */
}
}
+/* 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
-coff_find_nearest_line (abfd, section, ignore_symbols, offset, filename_ptr,
+coff_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
functionname_ptr, line_ptr)
bfd *abfd;
asection *section;
- asymbol **ignore_symbols;
+ 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;
-
+ 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;
*filename_ptr = 0;
*functionname_ptr = 0;
/* 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 < 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)
}
if (p2 < pend
- && offset >= p2->u.syment.n_value
- && offset - p2->u.syment.n_value < maxdiff)
+ && 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 - p2->u.syment.n_value;
+ maxdiff = offset + sec_vma - p2->u.syment.n_value;
}
/* Avoid endless loops on erroneous files by ensuring that
}
/* 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)
+ /* 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 = cache_i;
- *functionname_ptr = cache_function;
+ i = sec_data->i;
+ *functionname_ptr = sec_data->function;
+ line_base = sec_data->line_base;
}
else
{
i = 0;
+ line_base = 0;
}
- l = §ion->lineno[i];
- for (; i < section->lineno_count; i++)
+ if (section->lineno != NULL)
{
- if (l->line_number == 0)
+ l = §ion->lineno[i];
+
+ for (; i < section->lineno_count; i++)
{
- /* 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)
+ if (l->line_number == 0)
{
- 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)
+ /* 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)
{
- /*
- 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;
+ 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 + bfd_get_section_vma (abfd, section) > 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;
}
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;
+}
+
projects / external / binutils.git / blobdiff