binutils-gdb/ld/ldmisc.c

280 lines
5.4 KiB
C

/* Copyright (C) 1991 Free Software Foundation, Inc.
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 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. */
/*
* $Id$
*/
/*
ldmisc.c
*/
#include "sysdep.h"
#include <varargs.h>
#include "bfd.h"
#include "ld.h"
#include "ldmisc.h"
#include "ldlang.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[];
/*
%F error is fatal
%P print progam 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
%X no object output, fail return
%V hex bfd_vma
%C Clever filename:linenumber
%
*/
void info(va_alist)
va_dcl
{
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':
{
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");
}
}
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);
}
}
break;
case 'F':
fatal = true;
break;
case 'P':
fprintf(stderr,"%s", program_name);
break;
case 'E':
/* Replace with the most recent errno explanation */
fprintf(stderr, bfd_errmsg(bfd_error));
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 (before <");
ch = lex_input();
while (ch != 0 && n < 10) {
fprintf(stderr, "%c", ch);
ch = lex_input();
n++;
}
fprintf(stderr,")");
}
break;
case 'C':
{
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);
}
else {
fprintf(stderr,"%s", abfd->filename);
}
}
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;
}
}
}
if (fatal == true) {
extern char *output_filename;
if (output_filename)
unlink(output_filename);
exit(1);
}
va_end(arg);
}
void
info_assert(file, line)
char *file;
unsigned int line;
{
info("%F%P internal error %s %d\n", file,line);
}
/* Return a newly-allocated string
whose contents concatenate those of S1, S2, S3. */
char *
concat (s1, s2, s3)
char *s1, *s2, *s3;
{
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 *ldmalloc (size)
size_t size;
{
char * result = malloc (size);
if (result == (char *)NULL && size != 0)
info("%F%P virtual memory exhausted\n");
return result;
}
char *buystring(x)
char *x;
{
size_t l = strlen(x)+1;
char *r = ldmalloc(l);
memcpy(r, x,l);
return r;
}