/* ldmisc.c
- Copyright (C) 1991 Free Software Foundation, Inc.
-
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2002
+ Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support.
This file is part of GLD, the Gnu Linker.
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. */
+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. */
#include "bfd.h"
#include "sysdep.h"
+#include "libiberty.h"
+#include "demangle.h"
+
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
#include <varargs.h>
-#include <demangle.h>
+#endif
#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;
+#include "ldmain.h"
+#include "ldfile.h"
-
-extern int errno;
-extern int sys_nerr;
-extern char *sys_errlist[];
-
-/* VARARGS*/
-static void finfo ();
+static void vfinfo PARAMS ((FILE *, const char *, va_list));
/*
+ %% literal %
%F error is fatal
- %P print progam name
+ %P print program name
%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 table entry
+ %T symbol name
%X no object output, fail return
%V hex bfd_vma
%v hex bfd_vma, no leading zeros
- %C Clever filename:linenumber
+ %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces
+ %C clever filename:linenumber with function
+ %D like %C, but no function name
+ %G like %D, but only function name
%R info about a relent
- %
+ %s arbitrary string, like printf
+ %d integer, like printf
+ %u integer, like printf
*/
-extern bfd *output_bfd;
-
-static char *
-demangle(string, remove_underscore)
-char *string;
-int remove_underscore;
-{
- 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)
+vfinfo (fp, fmt, arg)
FILE *fp;
- char *fmt;
+ const char *fmt;
va_list arg;
{
boolean fatal = false;
- while (*fmt)
- {
- while (*fmt != '%' && *fmt != '\0')
- {
- putc(*fmt, fp);
- fmt++;
- }
- if (*fmt == '%')
+
+ while (*fmt != '\0')
{
- fmt ++;
- switch (*fmt++)
- {
- case 'X':
- config.make_executable = false;
- break;
- case 'V':
- {
- bfd_vma value = va_arg(arg, bfd_vma);
- fprintf_vma(fp, value);
- }
- break;
- case 'v':
+ 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':
- {
- asymbol *symbol = va_arg(arg, asymbol *);
- if (symbol)
- {
-
-
- asection *section = symbol->section;
- char *cplusname = demangle(symbol->name, 1);
- CONST char *section_name = section->name;
- if (section != &bfd_und_section)
- {
- fprintf(fp,"%s (%s)", cplusname, section_name);
- }
- else
- {
- fprintf(fp,"%s", cplusname);
- }
- }
- else
- {
- fprintf(fp,"no symbol");
- }
- }
- break;
- case 'B':
- {
- 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':
- fatal = true;
- break;
- case 'P':
- fprintf(fp,"%s", program_name);
- break;
- case 'E':
- /* Replace with the most recent errno explanation */
-
-
- fprintf(fp, bfd_errmsg(bfd_error));
-
-
- break;
- case 'I':
- {
- lang_input_statement_type *i =
- va_arg(arg,lang_input_statement_type *);
-
- fprintf(fp,"%s", i->local_sym_name);
- }
- break;
- case 'S':
- /* Print source script file and line number */
-
- {
-
-
- extern unsigned int lineno;
- 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':
- {
- CONST char *filename;
- CONST char *functionname;
- char *cplus_name;
-
- 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)
- {
- /* There is no initial '_' to remove here. */
- cplus_name = demangle(functionname, 0);
- fprintf(fp,"%s:%u: (%s)", filename, linenumber, cplus_name);
- }
-
- else if (linenumber != 0)
- fprintf(fp,"%s:%u", filename, linenumber);
- else
- finfo (fp, "%s(%s+0x%v)", filename, section->name, offset);
-
- }
- else
- finfo (fp, "%s(%s+0x%v)", abfd->filename, section->name, offset);
- }
- break;
-
- case 's':
- fprintf(fp,"%s", va_arg(arg, char *));
- break;
- case 'd':
- fprintf(fp,"%d", va_arg(arg, int));
- break;
- default:
- fprintf(fp,"%s", va_arg(arg, char *));
- break;
- }
- }
- }
- if (fatal == true)
- {
- extern char *output_filename;
- if (output_filename)
- {
- char *new = malloc(strlen(output_filename)+2);
- extern bfd *output_bfd;
-
- strcpy(new, output_filename);
- if (output_bfd && output_bfd->iostream)
- fclose((FILE *)(output_bfd->iostream));
- unlink(new);
- }
- exit(1);
- }
-}
-/* Format info message and print on stdout. */
-
-void info(va_alist)
-va_dcl
-{
- 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. */
+ 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 == (const char *) 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 '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, "%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;
+ 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 = (asymbol **) 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;
+ }
+ }
+
+ lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset);
+
+ discard_last = true;
+ if (bfd_find_nearest_line (abfd, section, asymbols, offset,
+ &filename, &functionname,
+ &linenumber))
+ {
+ boolean need_colon = true;
+
+ if (functionname != NULL && fmt[-1] == 'C')
+ {
+ 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, _(": In function `%T':\n"),
+ functionname);
+ need_colon = false;
+
+ 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;
+ }
+
+ if (filename != NULL)
+ {
+ if (need_colon)
+ putc (':', fp);
+ fputs (filename, fp);
+ }
+
+ if (functionname != NULL && fmt[-1] == 'G')
+ lfinfo (fp, ":%T", functionname);
+ else if (filename != NULL && linenumber != 0)
+ fprintf (fp, ":%u", linenumber);
+ }
+
+ 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;
+ }
+ }
+ }
-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);
-}
+ if (config.fatal_warnings)
+ config.make_executable = false;
-void
-info_assert(file, line)
-char *file;
-unsigned int line;
-{
- einfo("%F%P internal error %s %d\n", file,line);
+ if (fatal == true)
+ xexit (1);
}
-/* Return a newly-allocated string
- whose contents concatenate those of S1, S2, S3. */
+/* Wrapper around cplus_demangle. Strips leading underscores and
+ other such chars that would otherwise confuse the demangler. */
char *
-concat (s1, s2, s3)
- CONST char *s1;
- CONST char *s2;
- CONST char *s3;
+demangle (name)
+ const char *name;
{
- 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;
-}
+ 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)
+ {
+ size_t len = strlen (res) + 1;
+ char *add_dots = xmalloc (len + dots);
-PTR
-ldmalloc (size)
- size_t size;
-{
- PTR result = malloc ((int)size);
+ memcpy (add_dots, name, dots);
+ memcpy (add_dots + dots, res, len);
+ free (res);
+ res = add_dots;
+ }
+ return res;
+ }
+ return xstrdup (name);
+}
- if (result == (char *)NULL && size != 0)
- einfo("%F%P virtual memory exhausted\n");
+/* Format info message and print on stdout. */
- return result;
-}
+/* (You would think this should be called just "info", but then you
+ would hosed by LynxOS, which defines that name in its libc.) */
-PTR
-xmalloc (size)
- int size;
+void
+info_msg VPARAMS ((const char *fmt, ...))
{
-return ldmalloc(size);
+ VA_OPEN (arg, fmt);
+ VA_FIXEDARG (arg, const char *, fmt);
+
+ vfinfo (stdout, fmt, arg);
+ VA_CLOSE (arg);
}
+/* ('e' for error.) Format info message and print on stderr. */
-PTR
-ldrealloc (ptr, size)
- PTR ptr;
- size_t size;
+void
+einfo VPARAMS ((const char *fmt, ...))
{
- PTR result = realloc (ptr, (int)size);
+ VA_OPEN (arg, fmt);
+ VA_FIXEDARG (arg, const char *, fmt);
- if (result == (char *)NULL && size != 0)
- einfo("%F%P virtual memory exhausted\n");
-
- return result;
-}
-
-PTR
-xrealloc (ptr, size)
- PTR ptr;
- size_t size;
-{
-return ldrealloc(ptr, size);
+ vfinfo (stderr, fmt, arg);
+ VA_CLOSE (arg);
}
-
-char *
-buystring (x)
- CONST char *CONST x;
+void
+info_assert (file, line)
+ const char *file;
+ unsigned int line;
{
- size_t l = strlen(x)+1;
- char *r = ldmalloc(l);
- memcpy(r, x,l);
- return r;
+ einfo (_("%F%P: internal error %s %d\n"), file, line);
}
+/* ('m' for map) Format info message and print on map. */
-/* ('m' for map) Format info message and print on map. */
-
-void minfo(va_alist)
-va_dcl
+void
+minfo VPARAMS ((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);
-}
+ VA_OPEN (arg, fmt);
+ VA_FIXEDARG (arg, const char *, fmt);
+ vfinfo (config.map_file, fmt, arg);
+ VA_CLOSE (arg);
+}
-static void
-finfo (va_alist)
- va_dcl
+void
+lfinfo VPARAMS ((FILE *file, const char *fmt, ...))
{
- char *fmt;
- FILE *file;
- va_list arg;
- va_start (arg);
- file = va_arg (arg, FILE *);
- fmt = va_arg (arg, char *);
+ VA_OPEN (arg, fmt);
+ VA_FIXEDARG (arg, FILE *, file);
+ VA_FIXEDARG (arg, const char *, fmt);
+
vfinfo (file, fmt, arg);
- va_end (arg);
+ VA_CLOSE (arg);
}
+\f
+/* Functions to print the link map. */
-
-
-/*----------------------------------------------------------------------
- Functions to print the link map
- */
-
-void
+void
print_space ()
{
- fprintf(config.map_file, " ");
+ fprintf (config.map_file, " ");
}
-void
+
+void
print_nl ()
{
- 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 (file, line, fn)
+ 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);
}