-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* ldmisc.c
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002, 2003, 2004, 2005
+ 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 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 1, or (at your option)
-any later version.
+ 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.
+ 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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, 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
-/*
- * $Id$
- */
-
-/*
- ldmisc.c
-
-*/
-
-#include "sysdep.h"
-#include <varargs.h>
#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"
-/* IMPORTS */
-
-extern char *program_name;
-
-extern FILE *ldlex_input_stack;
-extern char *ldfile_input_filename;
-extern ld_config_type config;
-
-void
-yyerror(arg)
-char *arg;
-{
- info("%P%F: %S %s\n",arg);
-}
-
-extern int errno;
-extern int sys_nerr;
-extern char *sys_errlist[];
+#include "ldmain.h"
+#include "ldfile.h"
+#include "elf-bfd.h"
/*
- %F error is fatal
- %P print progam name
- %S print script file and linenumber
+ %% 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
- %B filename from a bfd
- %T symbol table entry
- %X no object output, fail return
+ %P print program name
+ %R info about a relent
+ %S print script file and linenumber
+ %T symbol name
%V hex bfd_vma
- %C Clever filename:linenumber
- %
+ %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces
+ %X no object output, fail return
+ %d integer, like printf
+ %s arbitrary string, like printf
+ %u integer, like printf
+ %v hex bfd_vma, no leading zeros
*/
-void info(va_alist)
-va_dcl
+
+static void
+vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning)
{
- char *fmt;
- boolean fatal = false;
- va_list arg;
- va_start(arg);
- fmt = va_arg(arg, char *);
- while (*fmt) {
- while (*fmt != '%' && *fmt != '\0') {
- fputc(*fmt, stderr);
- fmt++;
- }
- if (*fmt == '%') {
- fmt ++;
- switch (*fmt++) {
- case 'X':
- config.make_executable = false;
- break;
- case 'V':
- fprintf(stderr,"%08lx", va_arg(arg, bfd_vma));
- break;
- case 'T':
+ bfd_boolean fatal = FALSE;
+
+ while (*fmt != '\0')
+ {
+ while (*fmt != '%' && *fmt != '\0')
{
- asymbol *symbol = va_arg(arg, asymbol *);
- if (symbol) {
- asection *section = symbol->section;
- if ((symbol->flags & BSF_UNDEFINED) == 0) {
- char *section_name = section == (asection *)NULL ?
- "absolute" : section->name;
- fprintf(stderr,"%s (%s)", symbol->name, section_name);
- }
- else {
- fprintf(stderr,"%s", symbol->name);
- }
- }
- else {
- fprintf(stderr,"no symbol");
- }
+ putc (*fmt, fp);
+ fmt++;
}
- break;
- case 'B':
- {
- bfd *abfd = va_arg(arg, bfd *);
- if (abfd->my_archive) {
- fprintf(stderr,"%s(%s)", abfd->my_archive->filename,
- abfd->filename);
- }
- else {
- fprintf(stderr,"%s", abfd->filename);
-
- }
+
+ 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 */
+ {
+ 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"));
+ else if (! demangling)
+ fprintf (fp, "%s", name);
+ else
+ {
+ char *demangled;
+
+ demangled = demangle (name);
+ fprintf (fp, "%s", demangled);
+ free (demangled);
+ }
+ }
+ 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, "<none>");
+ 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;
+ 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);
+
+ 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 symbol_count;
+
+ symsize = bfd_get_symtab_upper_bound (abfd);
+ if (symsize < 0)
+ einfo (_("%B%F: could not read symbols\n"), abfd);
+ asymbols = xmalloc (symsize);
+ symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
+ if (symbol_count < 0)
+ einfo (_("%B%F: could not read symbols\n"), abfd);
+ if (entry != (lang_input_statement_type *) NULL)
+ {
+ entry->asymbols = asymbols;
+ entry->symbol_count = symbol_count;
+ }
+ }
+
+ /* 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 (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)
+ {
+ if (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':
+ /* 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;
+ }
}
- break;
- case 'F':
- fatal = true;
- break;
- case 'P':
- fprintf(stderr,"%s", program_name);
- break;
- case 'E':
- /* Replace with the most recent errno explanation */
+ }
+ if (is_warning && config.fatal_warnings)
+ config.make_executable = FALSE;
- fprintf(stderr, bfd_errmsg(bfd_error));
+ if (fatal)
+ xexit (1);
+}
+/* Wrapper around cplus_demangle. Strips leading underscores and
+ other such chars that would otherwise confuse the demangler. */
- break;
- case 'I':
- {
- lang_input_statement_type *i =
- va_arg(arg,lang_input_statement_type *);
-
- fprintf(stderr,"%s", i->local_sym_name);
- }
- break;
- case 'S':
- /* Print source script file and line number */
-
- if (ldlex_input_stack) {
- extern unsigned int lineno;
- if (ldfile_input_filename == (char *)NULL) {
- fprintf(stderr,"command line");
- }
- else {
- fprintf(stderr,"%s:%u", ldfile_input_filename, lineno );
- }
- }
- else {
- int ch;
- int n = 0;
- fprintf(stderr,"command (just before \"");
- ch = lex_input();
- while (ch != 0 && n < 10) {
- fprintf(stderr, "%c", ch);
- ch = lex_input();
- n++;
- }
- fprintf(stderr,"\")");
-
- }
- break;
- case 'C':
+char *
+demangle (const char *name)
+{
+ char *res;
+ const char *p;
+
+ if (output_bfd != NULL
+ && bfd_get_symbol_leading_char (output_bfd) == name[0])
+ ++name;
+
+ /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
+ 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;
+
+ /* Now put back any stripped dots. */
+ if (dots != 0)
{
- char *filename;
- char *functionname;
- unsigned int linenumber;
- bfd *abfd = va_arg(arg, bfd *);
- asection *section = va_arg(arg, asection *);
- asymbol **symbols = va_arg(arg, asymbol **);
- bfd_vma offset = va_arg(arg, bfd_vma);
-
- if (bfd_find_nearest_line(abfd,
- section,
- symbols,
- offset,
- &filename,
- &functionname,
- &linenumber))
- {
- if (filename == (char *)NULL)
- filename = abfd->filename;
- if (functionname != (char *)NULL)
- fprintf(stderr,"%s:%u: (%s)", filename, linenumber, functionname);
- else if (linenumber != 0)
- fprintf(stderr,"%s:%u", filename, linenumber);
- else
- fprintf(stderr,"%s", filename);
+ size_t len = strlen (res) + 1;
+ char *add_dots = xmalloc (len + dots);
- }
- else {
- fprintf(stderr,"%s", abfd->filename);
- }
+ memcpy (add_dots, name, dots);
+ memcpy (add_dots + dots, res, len);
+ free (res);
+ res = add_dots;
}
- break;
-
- case 's':
- fprintf(stderr,"%s", va_arg(arg, char *));
- break;
- case 'd':
- fprintf(stderr,"%d", va_arg(arg, int));
- break;
- default:
- fprintf(stderr,"%s", va_arg(arg, char *));
- break;
- }
+ return res;
}
- }
- if (fatal == true) {
- extern char *output_filename;
- if (output_filename)
- unlink(output_filename);
- exit(1);
- }
- va_end(arg);
+ return xstrdup (name);
}
+/* Format info message and print on stdout. */
-void
-info_assert(file, line)
-char *file;
-unsigned int line;
+/* (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 (const char *fmt, ...)
{
- info("%F%P internal error %s %d\n", file,line);
+ va_list arg;
+
+ va_start (arg, fmt);
+ vfinfo (stdout, fmt, arg, FALSE);
+ va_end (arg);
}
-/* Return a newly-allocated string
- whose contents concatenate those of S1, S2, S3. */
+/* ('e' for error.) Format info message and print on stderr. */
-char *
-concat (s1, s2, s3)
- char *s1, *s2, *s3;
+void
+einfo (const char *fmt, ...)
{
- size_t len1 = strlen (s1);
- size_t len2 = strlen (s2);
- size_t len3 = strlen (s3);
- char *result = ldmalloc (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;
+ 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);
+}
+/* ('m' for map) Format info message and print on map. */
-char *ldmalloc (size)
-size_t size;
+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, ...)
{
- char * result = malloc (size);
+ va_list arg;
- if (result == (char *)NULL && size != 0)
- info("%F%P virtual memory exhausted\n");
+ va_start (arg, fmt);
+ vfinfo (file, fmt, arg, FALSE);
+ va_end (arg);
+}
+\f
+/* Functions to print the link map. */
- return result;
-}
+void
+print_space (void)
+{
+ fprintf (config.map_file, " ");
+}
+void
+print_nl (void)
+{
+ fprintf (config.map_file, "\n");
+}
+/* A more or less friendly abort message. In ld.h abort is defined to
+ call this function. */
-char *DEFUN(buystring,(x),
- CONST char *CONST x)
+void
+ld_abort (const char *file, int line, const char *fn)
{
- size_t l = strlen(x)+1;
- char *r = ldmalloc(l);
- memcpy(r, x,l);
- return r;
+ 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);
}