/* ldmisc.c
- Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
-
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support.
-This file is part of GLD, the Gnu Linker.
+ This file is part of the GNU Binutils.
-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.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, 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.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GLD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
-#include <varargs.h>
-#include <demangle.h>
-
+#include "bfd.h"
+#include "bfdlink.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"
-
-/* VARARGS*/
-static void finfo ();
-static const char *demangle PARAMS ((const char *string,
- int remove_underscore));
+#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
- %E current bfd error or errno
- %I filename from a lang_input_statement_type
- %B filename from a bfd
%T symbol name
- %X no object output, fail return
%V hex bfd_vma
- %v hex bfd_vma, no leading zeros
- %C Clever filename:linenumber
- %R info about a relent
- %s arbitrary string, like printf
+ %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 const char *
-demangle (string, remove_underscore)
- const char *string;
- int remove_underscore;
-{
- const char *res;
- if (remove_underscore && output_bfd)
- {
- if (bfd_get_symbol_leading_char (output_bfd) == string[0])
- string++;
- }
- /* Note that there's a memory leak here, we keep buying memory
- for demangled names, and never free. But if you have so many
- errors that you run out of VM with the error messages, then
- there's something up */
- res = cplus_demangle (string, DMGL_ANSI|DMGL_PARAMS);
- return res ? res : string;
-}
-
static void
-vfinfo(fp, fmt, arg)
- FILE *fp;
- char *fmt;
- va_list arg;
+vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)
{
- boolean fatal = false;
+ bfd_boolean fatal = FALSE;
- while (*fmt)
- {
- while (*fmt != '%' && *fmt != '\0')
+ while (*fmt != '\0')
{
- putc(*fmt, fp);
- fmt++;
- }
-
- if (*fmt == '%')
- {
- fmt ++;
- switch (*fmt++)
- {
- default:
- fprintf(fp,"%%%c", fmt[-1]);
- break;
-
- case '%':
- /* literal % */
- putc('%', fp);
- break;
-
- case 'X':
- /* no object output, fail return */
- config.make_executable = false;
- break;
-
- case 'V':
- /* hex bfd_vma */
- {
- bfd_vma value = va_arg(arg, bfd_vma);
- fprintf_vma(fp, value);
- }
- break;
-
- case 'v':
- /* hex bfd_vma, no leading zeros */
+ while (*fmt != '%' && *fmt != '\0')
{
- 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);
+ putc (*fmt, fp);
+ fmt++;
}
- break;
- case 'T':
- /* Symbol name. */
+ if (*fmt == '%')
{
- const char *name = va_arg (arg, const char *);
-
- if (name != (const char *) NULL)
- fprintf (fp, "%s", demangle (name, 1));
- else
- fprintf (fp, "no symbol");
- }
- break;
-
- case 'B':
- /* filename from a bfd */
- {
- bfd *abfd = va_arg(arg, bfd *);
- if (abfd->my_archive) {
- fprintf(fp,"%s(%s)", abfd->my_archive->filename,
- abfd->filename);
- }
- else {
- fprintf(fp,"%s", abfd->filename);
- }
- }
- break;
-
- case 'F':
- /* error is fatal */
- fatal = true;
- break;
-
- case 'P':
- /* print program name */
- fprintf(fp,"%s", program_name);
- break;
-
- case 'E':
- /* current bfd error or errno */
- fprintf(fp, bfd_errmsg(bfd_get_error ()));
- break;
-
- case 'I':
- /* filename from a lang_input_statement_type */
- {
- lang_input_statement_type *i =
- va_arg(arg,lang_input_statement_type *);
-
- if (i->the_bfd->my_archive)
- fprintf(fp, "(%s)", i->the_bfd->my_archive->filename);
- fprintf(fp,"%s", i->local_sym_name);
- }
- break;
-
- case 'S':
- /* print script file and linenumber */
- {
- if (ldfile_input_filename == (char *)NULL) {
- fprintf(fp,"command line");
- }
- else {
- fprintf(fp,"%s:%u", ldfile_input_filename, lineno );
- }
- }
- break;
-
- case 'R':
- /* Print all that's interesting about a relent */
- {
- arelent *relent = va_arg(arg, arelent *);
-
- finfo (fp, "%s+0x%v (type %s)",
- (*(relent->sym_ptr_ptr))->name,
- relent->addend,
- relent->howto->name);
- }
- break;
-
- case 'C':
- /* Clever filename:linenumber with function name if possible,
- or section name as a last resort. The arguments are a BFD,
- a section, and an offset. */
- {
- bfd *abfd;
- asection *section;
- bfd_vma offset;
- lang_input_statement_type *entry;
- asymbol **asymbols;
- const char *filename;
- const char *functionname;
- unsigned int linenumber;
-
- abfd = va_arg (arg, bfd *);
- section = va_arg (arg, asection *);
- offset = va_arg (arg, bfd_vma);
-
- entry = (lang_input_statement_type *) abfd->usrdata;
- if (entry != (lang_input_statement_type *) NULL
- && entry->asymbols != (asymbol **) NULL)
- asymbols = entry->asymbols;
- else
+ fmt++;
+ switch (*fmt++)
{
- unsigned int symsize;
- unsigned int symbol_count;
-
- symsize = get_symtab_upper_bound (abfd);
- asymbols = (asymbol **) xmalloc (symsize);
- symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
- if (entry != (lang_input_statement_type *) NULL)
+ case '%':
+ /* literal % */
+ putc ('%', fp);
+ break;
+
+ case 'X':
+ /* no object output, fail return */
+ config.make_executable = FALSE;
+ break;
+
+ case 'V':
+ /* hex bfd_vma */
+ {
+ bfd_vma value = va_arg (arg, bfd_vma);
+ fprintf_vma (fp, value);
+ }
+ break;
+
+ case 'v':
+ /* hex bfd_vma, no leading zeros */
+ {
+ 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':
+ /* hex bfd_vma with 0x with no leading zeroes taking up
+ 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':
+ /* Symbol name. */
+ {
+ const char *name = va_arg (arg, const char *);
+
+ if (name == NULL || *name == 0)
+ {
+ fprintf (fp, _("no symbol"));
+ break;
+ }
+ else if (demangling)
+ {
+ char *demangled;
+
+ demangled = bfd_demangle (link_info.output_bfd, name,
+ DMGL_ANSI | DMGL_PARAMS);
+ if (demangled != NULL)
+ {
+ fprintf (fp, "%s", demangled);
+ free (demangled);
+ break;
+ }
+ }
+ fprintf (fp, "%s", name);
+ }
+ break;
+
+ case 'A':
+ /* section name from a section */
+ {
+ 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':
+ /* filename from a bfd */
+ {
+ 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':
+ /* Error is fatal. */
+ fatal = TRUE;
+ break;
+
+ case 'P':
+ /* Print program name. */
+ fprintf (fp, "%s", program_name);
+ break;
+
+ case 'E':
+ /* current bfd error or errno */
+ fprintf (fp, "%s", bfd_errmsg (bfd_get_error ()));
+ break;
+
+ case 'I':
+ /* filename from a lang_input_statement_type */
+ {
+ 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':
+ /* Print script file and linenumber. */
+ 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':
+ /* Print all that's interesting about a relent. */
+ {
+ 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':
+ /* Clever filename:linenumber with function name if possible.
+ 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;
+ asymbol **asymbols = NULL;
+ 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)
+ {
+ if (!bfd_generic_link_read_symbols (abfd))
+ einfo (_("%B%F: could not read symbols: %E\n"), abfd);
+
+ asymbols = bfd_get_outsymbols (abfd);
+ }
+
+ /* The GNU Coding Standard requires that error messages
+ 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')
+ {
+ /* Detect the case where we are printing out a
+ 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 (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':
+ /* arbitrary string, like printf */
+ fprintf (fp, "%s", va_arg (arg, char *));
+ break;
+
+ case 'd':
+ /* integer, like printf */
+ fprintf (fp, "%d", va_arg (arg, int));
+ break;
+
+ case 'u':
+ /* unsigned integer, like printf */
+ fprintf (fp, "%u", va_arg (arg, unsigned int));
+ break;
+
+ case 'l':
+ if (*fmt == 'd')
{
- entry->asymbols = asymbols;
- entry->symbol_count = symbol_count;
+ fprintf (fp, "%ld", va_arg (arg, long));
+ ++fmt;
+ break;
}
- }
-
- if (bfd_find_nearest_line (abfd, section, asymbols, offset,
- &filename, &functionname, &linenumber))
- {
- if (filename == (char *) NULL)
- filename = abfd->filename;
-
- if (functionname != (char *)NULL)
- fprintf (fp, "%s:%u: %s", filename, linenumber,
- demangle (functionname, 1));
- else if (linenumber != 0)
- fprintf (fp, "%s:%u", filename, linenumber);
- else
- finfo (fp, "%s(%s+0x%v)", filename, section->name, offset);
+ else if (*fmt == 'u')
+ {
+ fprintf (fp, "%lu", va_arg (arg, unsigned long));
+ ++fmt;
+ break;
+ }
+ /* Fall thru */
+ default:
+ fprintf (fp, "%%%c", fmt[-1]);
+ break;
}
- else
- finfo (fp, "%s(%s+0x%v)", abfd->filename, section->name, offset);
}
- break;
-
- case 's':
- /* arbitrary string, like printf */
- fprintf(fp,"%s", va_arg(arg, char *));
- break;
-
- case 'd':
- /* integer, like printf */
- fprintf(fp,"%d", va_arg(arg, int));
- break;
- }
}
- }
- if (fatal == true)
- xexit(1);
+ if (is_warning && config.fatal_warnings)
+ config.make_executable = FALSE;
+
+ if (fatal)
+ xexit (1);
}
-/* Format info message and print on stdout. */
+/* Format info message and print on stdout. */
-/* (You would think this should be called just "info", but then you would
- hosed by LynxOS, which defines that name in its libc.) */
+/* (You would think this should be called just "info", but then you
+ would be hosed by LynxOS, which defines that name in its libc.) */
-void info_msg(va_alist)
- va_dcl
+void
+info_msg (const char *fmt, ...)
{
- char *fmt;
va_list arg;
- va_start(arg);
- fmt = va_arg(arg, char *);
- vfinfo(stdout, fmt, arg);
- va_end(arg);
-}
-/* ('e' for error.) Format info message and print on stderr. */
-
-void einfo(va_alist)
- va_dcl
-{
- char *fmt;
- va_list arg;
- va_start(arg);
- fmt = va_arg(arg, char *);
- vfinfo(stderr, fmt, arg);
- va_end(arg);
+ va_start (arg, fmt);
+ vfinfo (stdout, fmt, arg, FALSE);
+ va_end (arg);
}
-/* Warn about a symbol NEWSYM being multiply defined with another symbol OLDSYM.
- MESSAGE1 and MESSAGE2 should look something like:
- "%C: warning: multiple commons of `%s'\n"
- "%C: warning: previous common here\n" */
+/* ('e' for error.) Format info message and print on stderr. */
void
-multiple_warn (message1, newsym, message2, oldsym)
- char *message1;
- asymbol *newsym;
- char *message2;
- asymbol *oldsym;
+einfo (const char *fmt, ...)
{
- lang_input_statement_type *inp_stat;
- asymbol **stat_symbols;
-
- inp_stat = (lang_input_statement_type *) bfd_asymbol_bfd (newsym)->usrdata;
- stat_symbols = inp_stat ? inp_stat->asymbols : 0;
-
- einfo (message1,
- bfd_asymbol_bfd (newsym), newsym->section, stat_symbols, newsym->value,
- demangle (newsym->name, 1));
-
- inp_stat = (lang_input_statement_type *) bfd_asymbol_bfd (oldsym)->usrdata;
- stat_symbols = inp_stat ? inp_stat->asymbols : 0;
+ va_list arg;
- einfo (message2,
- bfd_asymbol_bfd (oldsym), oldsym->section, stat_symbols, oldsym->value);
+ va_start (arg, fmt);
+ vfinfo (stderr, fmt, arg, TRUE);
+ va_end (arg);
}
-void
-info_assert(file, line)
- char *file;
- unsigned int line;
+void
+info_assert (const char *file, unsigned int line)
{
- einfo("%F%P: internal error %s %d\n", file,line);
+ einfo (_("%F%P: internal error %s %d\n"), file, line);
}
-/* Return a newly-allocated string
- whose contents concatenate those of S1, S2, S3. */
+/* ('m' for map) Format info message and print on map. */
-char *
-concat (s1, s2, s3)
- CONST char *s1;
- CONST char *s2;
- CONST char *s3;
+void
+minfo (const char *fmt, ...)
{
- size_t len1 = strlen (s1);
- size_t len2 = strlen (s2);
- size_t len3 = strlen (s3);
- char *result = xmalloc (len1 + len2 + len3 + 1);
-
- if (len1 != 0)
- memcpy(result, s1, len1);
- if (len2 != 0)
- memcpy(result+len1, s2, len2);
- if (len3 != 0)
- memcpy(result+len1+len2, s2, len3);
- *(result + len1 + len2 + len3) = 0;
-
- return result;
-}
+ if (config.map_file != NULL)
+ {
+ va_list arg;
-char *
-buystring (x)
- CONST char *CONST x;
-{
- size_t l = strlen(x)+1;
- char *r = xmalloc(l);
- memcpy(r, x,l);
- return r;
+ va_start (arg, fmt);
+ vfinfo (config.map_file, fmt, arg, FALSE);
+ va_end (arg);
+ }
}
-
-/* ('m' for map) Format info message and print on map. */
-
-void minfo(va_alist)
- va_dcl
+void
+lfinfo (FILE *file, const char *fmt, ...)
{
- char *fmt;
va_list arg;
- va_start(arg);
- fmt = va_arg(arg, char *);
- vfinfo(config.map_file, fmt, arg);
- va_end(arg);
-}
-
-static void
-finfo (va_alist)
- va_dcl
-{
- char *fmt;
- FILE *file;
- va_list arg;
- va_start (arg);
- file = va_arg (arg, FILE *);
- fmt = va_arg (arg, char *);
- vfinfo (file, fmt, arg);
+ va_start (arg, fmt);
+ vfinfo (file, fmt, arg, FALSE);
va_end (arg);
}
+\f
+/* Functions to print the link map. */
-
-
-/*----------------------------------------------------------------------
- Functions to print the link map
- */
-
-void
-print_space ()
+void
+print_space (void)
{
- fprintf(config.map_file, " ");
+ fprintf (config.map_file, " ");
}
-void
-print_nl ()
+
+void
+print_nl (void)
{
- fprintf(config.map_file, "\n");
+ fprintf (config.map_file, "\n");
}
-void
-print_address (value)
- bfd_vma value;
+
+/* A more or less friendly abort message. In ld.h abort is defined to
+ call this function. */
+
+void
+ld_abort (const char *file, int line, const char *fn)
{
- fprintf_vma(config.map_file, value);
+ 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);
}