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476 lines
9.1 KiB
C
476 lines
9.1 KiB
C
/* ldmisc.c
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Copyright (C) 1991 Free Software Foundation, Inc.
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Written by Steve Chamberlain of Cygnus Support.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GLD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include <varargs.h>
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#include <demangle.h>
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#include "ld.h"
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#include "ldmisc.h"
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#include "ldlang.h"
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#include "ldlex.h"
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/* IMPORTS */
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extern char *program_name;
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extern FILE *ldlex_input_stack;
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extern char *ldfile_input_filename;
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extern ld_config_type config;
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extern int errno;
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extern int sys_nerr;
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extern char *sys_errlist[];
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/* VARARGS*/
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static void finfo ();
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/*
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%F error is fatal
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%P print progam name
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%S print script file and linenumber
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%E current bfd error or errno
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%I filename from a lang_input_statement_type
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%B filename from a bfd
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%T symbol table entry
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%X no object output, fail return
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%V hex bfd_vma
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%v hex bfd_vma, no leading zeros
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%C Clever filename:linenumber
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%R info about a relent
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%
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*/
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extern bfd *output_bfd;
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static char *
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demangle(string, remove_underscore)
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char *string;
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int remove_underscore;
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{
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char *res;
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if (remove_underscore && output_bfd)
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{
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if (bfd_get_symbol_leading_char(output_bfd) == string[0])
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string++;
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}
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/* Note that there's a memory leak here, we keep buying memory
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for demangled names, and never free. But if you have so many
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errors that you run out of VM with the error messages, then
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there's something up */
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res = cplus_demangle(string, DMGL_ANSI|DMGL_PARAMS);
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return res ? res : string;
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}
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static void
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vfinfo(fp, fmt, arg)
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FILE *fp;
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char *fmt;
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va_list arg;
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{
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boolean fatal = false;
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while (*fmt)
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{
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while (*fmt != '%' && *fmt != '\0')
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{
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putc(*fmt, fp);
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fmt++;
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}
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if (*fmt == '%')
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{
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fmt ++;
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switch (*fmt++)
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{
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case 'X':
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config.make_executable = false;
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break;
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case 'V':
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{
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bfd_vma value = va_arg(arg, bfd_vma);
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fprintf_vma(fp, value);
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}
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break;
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case 'v':
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{
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char buf[100];
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char *p = buf;
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bfd_vma value = va_arg (arg, bfd_vma);
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sprintf_vma (p, value);
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while (*p == '0')
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p++;
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if (!*p)
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p--;
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fputs (p, fp);
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}
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break;
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case 'T':
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{
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asymbol *symbol = va_arg(arg, asymbol *);
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if (symbol)
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{
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asection *section = symbol->section;
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char *cplusname = demangle(symbol->name, 1);
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CONST char *section_name = section->name;
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if (section != &bfd_und_section)
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{
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fprintf(fp,"%s (%s)", cplusname, section_name);
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}
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else
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{
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fprintf(fp,"%s", cplusname);
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}
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}
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else
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{
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fprintf(fp,"no symbol");
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}
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}
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break;
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case 'B':
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{
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bfd *abfd = va_arg(arg, bfd *);
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if (abfd->my_archive) {
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fprintf(fp,"%s(%s)", abfd->my_archive->filename,
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abfd->filename);
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}
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else {
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fprintf(fp,"%s", abfd->filename);
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}
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}
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break;
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case 'F':
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fatal = true;
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break;
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case 'P':
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fprintf(fp,"%s", program_name);
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break;
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case 'E':
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/* Replace with the most recent errno explanation */
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fprintf(fp, bfd_errmsg(bfd_error));
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break;
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case 'I':
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{
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lang_input_statement_type *i =
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va_arg(arg,lang_input_statement_type *);
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fprintf(fp,"%s", i->local_sym_name);
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}
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break;
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case 'S':
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/* Print source script file and line number */
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{
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extern unsigned int lineno;
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if (ldfile_input_filename == (char *)NULL) {
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fprintf(fp,"command line");
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}
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else {
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fprintf(fp,"%s:%u", ldfile_input_filename, lineno );
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}
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}
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break;
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case 'R':
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/* Print all that's interesting about a relent */
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{
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arelent *relent = va_arg(arg, arelent *);
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finfo (fp, "%s+0x%v (type %s)",
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(*(relent->sym_ptr_ptr))->name,
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relent->addend,
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relent->howto->name);
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}
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break;
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case 'C':
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{
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CONST char *filename;
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CONST char *functionname;
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char *cplus_name;
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unsigned int linenumber;
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bfd *abfd = va_arg(arg, bfd *);
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asection *section = va_arg(arg, asection *);
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asymbol **symbols = va_arg(arg, asymbol **);
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bfd_vma offset = va_arg(arg, bfd_vma);
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if (bfd_find_nearest_line(abfd,
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section,
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symbols,
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offset,
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&filename,
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&functionname,
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&linenumber))
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{
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if (filename == (char *)NULL)
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filename = abfd->filename;
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if (functionname != (char *)NULL)
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{
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cplus_name = demangle(functionname, 1);
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fprintf(fp,"%s:%u: (%s)", filename, linenumber, cplus_name);
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}
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else if (linenumber != 0)
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fprintf(fp,"%s:%u", filename, linenumber);
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else
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finfo (fp, "%s(%s+0x%v)", filename, section->name, offset);
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}
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else
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finfo (fp, "%s(%s+0x%v)", abfd->filename, section->name, offset);
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}
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break;
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case 's':
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fprintf(fp,"%s", va_arg(arg, char *));
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break;
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case 'd':
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fprintf(fp,"%d", va_arg(arg, int));
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break;
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default:
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fprintf(fp,"%s", va_arg(arg, char *));
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break;
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}
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}
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}
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if (fatal == true)
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{
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extern char *output_filename;
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if (output_filename)
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{
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char *new = malloc(strlen(output_filename)+2);
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extern bfd *output_bfd;
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strcpy(new, output_filename);
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if (output_bfd && output_bfd->iostream)
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fclose((FILE *)(output_bfd->iostream));
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unlink(new);
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}
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exit(1);
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}
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}
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/* Format info message and print on stdout. */
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void info(va_alist)
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va_dcl
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{
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char *fmt;
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va_list arg;
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va_start(arg);
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fmt = va_arg(arg, char *);
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vfinfo(stdout, fmt, arg);
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va_end(arg);
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}
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/* ('e' for error.) Format info message and print on stderr. */
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void einfo(va_alist)
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va_dcl
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{
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char *fmt;
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va_list arg;
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va_start(arg);
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fmt = va_arg(arg, char *);
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vfinfo(stderr, fmt, arg);
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va_end(arg);
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}
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/* Warn about a symbol NEWSYM being multiply defined with another symbol OLDSYM.
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MESSAGE1 and MESSAGE2 should look something like:
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"%C: warning: multiple commons of `%s'\n"
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"%C: warning: previous common here\n" */
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void
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multiple_warn (message1, newsym, message2, oldsym)
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char *message1;
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asymbol *newsym;
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char *message2;
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asymbol *oldsym;
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{
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lang_input_statement_type *stat;
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asymbol **stat_symbols;
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stat = (lang_input_statement_type *) bfd_asymbol_bfd (newsym)->usrdata;
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stat_symbols = stat ? stat->asymbols : 0;
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einfo (message1,
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bfd_asymbol_bfd (newsym), newsym->section, stat_symbols, newsym->value,
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demangle (newsym->name, 1));
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stat = (lang_input_statement_type *) bfd_asymbol_bfd (oldsym)->usrdata;
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stat_symbols = stat ? stat->asymbols : 0;
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einfo (message2,
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bfd_asymbol_bfd (oldsym), oldsym->section, stat_symbols, oldsym->value);
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}
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void
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info_assert(file, line)
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char *file;
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unsigned int line;
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{
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einfo("%F%P internal error %s %d\n", file,line);
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}
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/* Return a newly-allocated string
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whose contents concatenate those of S1, S2, S3. */
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char *
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concat (s1, s2, s3)
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CONST char *s1;
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CONST char *s2;
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CONST char *s3;
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{
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size_t len1 = strlen (s1);
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size_t len2 = strlen (s2);
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size_t len3 = strlen (s3);
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char *result = ldmalloc (len1 + len2 + len3 + 1);
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if (len1 != 0)
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memcpy(result, s1, len1);
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if (len2 != 0)
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memcpy(result+len1, s2, len2);
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if (len3 != 0)
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memcpy(result+len1+len2, s2, len3);
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*(result + len1 + len2 + len3) = 0;
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return result;
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}
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PTR
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ldmalloc (size)
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size_t size;
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{
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PTR result = malloc ((int)size);
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if (result == (char *)NULL && size != 0)
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einfo("%F%P virtual memory exhausted\n");
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return result;
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}
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PTR
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xmalloc (size)
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int size;
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{
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return ldmalloc(size);
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}
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PTR
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ldrealloc (ptr, size)
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PTR ptr;
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size_t size;
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{
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PTR result = realloc (ptr, (int)size);
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if (result == (char *)NULL && size != 0)
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einfo("%F%P virtual memory exhausted\n");
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return result;
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}
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PTR
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xrealloc (ptr, size)
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PTR ptr;
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size_t size;
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{
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return ldrealloc(ptr, size);
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}
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char *
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buystring (x)
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CONST char *CONST x;
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{
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size_t l = strlen(x)+1;
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char *r = ldmalloc(l);
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memcpy(r, x,l);
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return r;
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}
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/* ('m' for map) Format info message and print on map. */
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void minfo(va_alist)
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va_dcl
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{
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char *fmt;
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va_list arg;
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va_start(arg);
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fmt = va_arg(arg, char *);
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vfinfo(config.map_file, fmt, arg);
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va_end(arg);
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}
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static void
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finfo (va_alist)
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va_dcl
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{
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char *fmt;
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FILE *file;
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va_list arg;
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va_start (arg);
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file = va_arg (arg, FILE *);
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fmt = va_arg (arg, char *);
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vfinfo (file, fmt, arg);
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va_end (arg);
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}
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/*----------------------------------------------------------------------
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Functions to print the link map
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*/
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void
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print_space ()
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{
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fprintf(config.map_file, " ");
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}
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void
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print_nl ()
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{
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fprintf(config.map_file, "\n");
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}
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void
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print_address (value)
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bfd_vma value;
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{
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fprintf_vma(config.map_file, value);
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}
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