Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support.
This file is part of GLD, the Gnu Linker.
GLD is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GLD is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GLD; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#include "bfd.h"
#include "bfdlink.h"
#include "sysdep.h"
#include "libiberty.h"
#include "demangle.h"
#include <stdarg.h>
#include "ld.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include <ldgram.h>
#include "ldlex.h"
#include "ldmain.h"
#include "ldfile.h"
#include "elf-bfd.h"
%% literal %
%A section name from a section
%B filename from a bfd
%C clever filename:linenumber with function
%D like %C, but no function name
%E current bfd error or errno
%F error is fatal
%G like %D, but only function name
%I filename from a lang_input_statement_type
%P print program name
%R info about a relent
%S print script file and linenumber
%T symbol name
%V hex bfd_vma
%W hex bfd_vma with 0x with no leading zeros taking up 8 spaces
%X no object output, fail return
%d integer, like printf
%ld long, like printf
%lu unsigned long, like printf
%s arbitrary string, like printf
%u integer, like printf
%v hex bfd_vma, no leading zeros
*/
static void
vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)
{
bfd_boolean fatal = FALSE;
while (*fmt != '\0')
{
while (*fmt != '%' && *fmt != '\0')
{
putc (*fmt, fp);
fmt++;
}
if (*fmt == '%')
{
fmt++;
switch (*fmt++)
{
case '%':
putc ('%', fp);
break;
case 'X':
config.make_executable = FALSE;
break;
case 'V':
{
bfd_vma value = va_arg (arg, bfd_vma);
fprintf_vma (fp, value);
}
break;
case 'v':
{
char buf[100];
char *p = buf;
bfd_vma value = va_arg (arg, bfd_vma);
sprintf_vma (p, value);
while (*p == '0')
p++;
if (!*p)
p--;
fputs (p, fp);
}
break;
case 'W':
8 spaces. */
{
char buf[100];
bfd_vma value;
char *p;
int len;
value = va_arg (arg, bfd_vma);
sprintf_vma (buf, value);
for (p = buf; *p == '0'; ++p)
;
if (*p == '\0')
--p;
len = strlen (p);
while (len < 8)
{
putc (' ', fp);
++len;
}
fprintf (fp, "0x%s", p);
}
break;
case 'T':
{
const char *name = va_arg (arg, const char *);
if (name == NULL || *name == 0)
fprintf (fp, _("no symbol"));
else if (! demangling)
fprintf (fp, "%s", name);
else
{
char *demangled;
demangled = demangle (name);
fprintf (fp, "%s", demangled);
free (demangled);
}
}
break;
case 'A':
{
asection *sec = va_arg (arg, asection *);
bfd *abfd = sec->owner;
const char *group = NULL;
struct coff_comdat_info *ci;
fprintf (fp, "%s", sec->name);
if (abfd != NULL
&& bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& elf_next_in_group (sec) != NULL
&& (sec->flags & SEC_GROUP) == 0)
group = elf_group_name (sec);
else if (abfd != NULL
&& bfd_get_flavour (abfd) == bfd_target_coff_flavour
&& (ci = bfd_coff_get_comdat_section (sec->owner,
sec)) != NULL)
group = ci->name;
if (group != NULL)
fprintf (fp, "[%s]", group);
}
break;
case 'B':
{
bfd *abfd = va_arg (arg, bfd *);
if (abfd == NULL)
fprintf (fp, "%s generated", program_name);
else if (abfd->my_archive)
fprintf (fp, "%s(%s)", abfd->my_archive->filename,
abfd->filename);
else
fprintf (fp, "%s", abfd->filename);
}
break;
case 'F':
fatal = TRUE;
break;
case 'P':
fprintf (fp, "%s", program_name);
break;
case 'E':
fprintf (fp, "%s", bfd_errmsg (bfd_get_error ()));
break;
case 'I':
{
lang_input_statement_type *i;
i = va_arg (arg, lang_input_statement_type *);
if (bfd_my_archive (i->the_bfd) != NULL)
fprintf (fp, "(%s)",
bfd_get_filename (bfd_my_archive (i->the_bfd)));
fprintf (fp, "%s", i->local_sym_name);
if (bfd_my_archive (i->the_bfd) == NULL
&& strcmp (i->local_sym_name, i->filename) != 0)
fprintf (fp, " (%s)", i->filename);
}
break;
case 'S':
if (parsing_defsym)
fprintf (fp, "--defsym %s", lex_string);
else if (ldfile_input_filename != NULL)
fprintf (fp, "%s:%u", ldfile_input_filename, lineno);
else
fprintf (fp, _("built in linker script:%u"), lineno);
break;
case 'R':
{
arelent *relent = va_arg (arg, arelent *);
lfinfo (fp, "%s+0x%v (type %s)",
(*(relent->sym_ptr_ptr))->name,
relent->addend,
relent->howto->name);
}
break;
case 'C':
case 'D':
case 'G':
The arguments are a BFD, a section, and an offset. */
{
static bfd *last_bfd;
static char *last_file = NULL;
static char *last_function = NULL;
bfd *abfd;
asection *section;
bfd_vma offset;
lang_input_statement_type *entry;
asymbol **asymbols;
const char *filename;
const char *functionname;
unsigned int linenumber;
bfd_boolean discard_last;
abfd = va_arg (arg, bfd *);
section = va_arg (arg, asection *);
offset = va_arg (arg, bfd_vma);
if (abfd == NULL)
{
entry = NULL;
asymbols = NULL;
}
else
{
entry = (lang_input_statement_type *) abfd->usrdata;
if (entry != (lang_input_statement_type *) NULL
&& entry->asymbols != (asymbol **) NULL)
asymbols = entry->asymbols;
else
{
long symsize;
long sym_count;
symsize = bfd_get_symtab_upper_bound (abfd);
if (symsize < 0)
einfo (_("%B%F: could not read symbols\n"), abfd);
asymbols = xmalloc (symsize);
sym_count = bfd_canonicalize_symtab (abfd, asymbols);
if (sym_count < 0)
einfo (_("%B%F: could not read symbols\n"), abfd);
if (entry != (lang_input_statement_type *) NULL)
{
entry->asymbols = asymbols;
entry->symbol_count = sym_count;
}
}
}
be of the form:
source-file-name:lineno: message
We do not always have a line number available so if
we cannot find them we print out the section name and
offset instread. */
discard_last = TRUE;
if (abfd != NULL
&& bfd_find_nearest_line (abfd, section, asymbols, offset,
&filename, &functionname,
&linenumber))
{
if (functionname != NULL && fmt[-1] == 'C')
{
message for the same function as the last
call to vinfo ("%C"). In this situation do
not print out the ABFD filename or the
function name again. Note - we do still
print out the source filename, as this will
allow programs that parse the linker's output
(eg emacs) to correctly locate multiple
errors in the same source file. */
if (last_bfd == NULL
|| last_file == NULL
|| last_function == NULL
|| last_bfd != abfd
|| (filename != NULL
&& strcmp (last_file, filename) != 0)
|| strcmp (last_function, functionname) != 0)
{
lfinfo (fp, _("%B: In function `%T':\n"),
abfd, functionname);
last_bfd = abfd;
if (last_file != NULL)
free (last_file);
last_file = NULL;
if (filename)
last_file = xstrdup (filename);
if (last_function != NULL)
free (last_function);
last_function = xstrdup (functionname);
}
discard_last = FALSE;
}
else
lfinfo (fp, "%B:", abfd);
if (filename != NULL)
fprintf (fp, "%s:", filename);
if (functionname != NULL && fmt[-1] == 'G')
lfinfo (fp, "%T", functionname);
else if (filename != NULL && linenumber != 0)
fprintf (fp, "%u", linenumber);
else
lfinfo (fp, "(%A+0x%v)", section, offset);
}
else
lfinfo (fp, "%B:(%A+0x%v)", abfd, section, offset);
if (asymbols != NULL && entry == NULL)
free (asymbols);
if (discard_last)
{
last_bfd = NULL;
if (last_file != NULL)
{
free (last_file);
last_file = NULL;
}
if (last_function != NULL)
{
free (last_function);
last_function = NULL;
}
}
}
break;
case 's':
fprintf (fp, "%s", va_arg (arg, char *));
break;
case 'd':
fprintf (fp, "%d", va_arg (arg, int));
break;
case 'u':
fprintf (fp, "%u", va_arg (arg, unsigned int));
break;
case 'l':
if (*fmt == 'd')
{
fprintf (fp, "%ld", va_arg (arg, long));
++fmt;
break;
}
else if (*fmt == 'u')
{
fprintf (fp, "%lu", va_arg (arg, unsigned long));
++fmt;
break;
}
default:
fprintf (fp, "%%%c", fmt[-1]);
break;
}
}
}
if (is_warning && config.fatal_warnings)
config.make_executable = FALSE;
if (fatal)
xexit (1);
}
other such chars that would otherwise confuse the demangler. */
char *
demangle (const char *name)
{
char *res;
const char *p;
if (output_bfd != NULL
&& bfd_get_symbol_leading_char (output_bfd) == name[0])
++name;
or the MS PE format. These formats have a number of leading '.'s
on at least some symbols, so we remove all dots to avoid
confusing the demangler. */
p = name;
while (*p == '.')
++p;
res = cplus_demangle (p, DMGL_ANSI | DMGL_PARAMS);
if (res)
{
size_t dots = p - name;
if (dots != 0)
{
size_t len = strlen (res) + 1;
char *add_dots = xmalloc (len + dots);
memcpy (add_dots, name, dots);
memcpy (add_dots + dots, res, len);
free (res);
res = add_dots;
}
return res;
}
return xstrdup (name);
}
would be hosed by LynxOS, which defines that name in its libc.) */
void
info_msg (const char *fmt, ...)
{
va_list arg;
va_start (arg, fmt);
vfinfo (stdout, fmt, arg, FALSE);
va_end (arg);
}
void
einfo (const char *fmt, ...)
{
va_list arg;
va_start (arg, fmt);
vfinfo (stderr, fmt, arg, TRUE);
va_end (arg);
}
void
info_assert (const char *file, unsigned int line)
{
einfo (_("%F%P: internal error %s %d\n"), file, line);
}
void
minfo (const char *fmt, ...)
{
va_list arg;
va_start (arg, fmt);
vfinfo (config.map_file, fmt, arg, FALSE);
va_end (arg);
}
void
lfinfo (FILE *file, const char *fmt, ...)
{
va_list arg;
va_start (arg, fmt);
vfinfo (file, fmt, arg, FALSE);
va_end (arg);
}
void
print_space (void)
{
fprintf (config.map_file, " ");
}
void
print_nl (void)
{
fprintf (config.map_file, "\n");
}
call this function. */
void
ld_abort (const char *file, int line, const char *fn)
{
if (fn != NULL)
einfo (_("%P: internal error: aborting at %s line %d in %s\n"),
file, line, fn);
else
einfo (_("%P: internal error: aborting at %s line %d\n"),
file, line);
einfo (_("%P%F: please report this bug\n"));
xexit (1);
}
