binutils-gdb/ld/ldmisc.c

519 lines
11 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* ldmisc.c
Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support.
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 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.
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. */
#include "bfd.h"
#include "sysdep.h"
#include "libiberty.h"
#include "demangle.h"
#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
#define USE_STDARG 1
#else
#include <varargs.h>
#define USE_STDARG 0
#endif
#include "ld.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldgram.h"
#include "ldlex.h"
#include "ldmain.h"
#include "ldfile.h"
#if USE_STDARG
static void finfo PARAMS ((FILE *, const char *, ...));
#else
/* VARARGS*/
static void finfo ();
#endif
/*
%% literal %
%F error is fatal
%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 name
%X no object output, fail return
%V hex bfd_vma
%v hex bfd_vma, no leading zeros
%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
*/
char *
demangle (string)
const char *string;
{
char *res;
if (output_bfd != NULL
&& bfd_get_symbol_leading_char (output_bfd) == string[0])
++string;
/* This is a hack for better error reporting on XCOFF. */
if (string[0] == '.')
++string;
res = cplus_demangle (string, DMGL_ANSI | DMGL_PARAMS);
return res ? res : xstrdup (string);
}
static void
vfinfo (fp, fmt, arg)
FILE *fp;
const char *fmt;
va_list arg;
{
boolean fatal = false;
while (*fmt != '\0')
{
while (*fmt != '%' && *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 */
{
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 'T':
/* Symbol name. */
{
const char *name = va_arg (arg, const char *);
if (name == (const char *) NULL)
fprintf (fp, "no symbol");
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, 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 *);
finfo (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,
or section name as a last resort. 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;
}
}
discard_last = true;
if (bfd_find_nearest_line (abfd, section, asymbols, offset,
&filename, &functionname,
&linenumber))
{
if (functionname != NULL && fmt[-1] == 'G')
{
finfo (fp, "%B:", abfd);
if (filename != NULL
&& strcmp (filename, bfd_get_filename (abfd)) != 0)
fprintf (fp, "%s:", filename);
finfo (fp, "%T", functionname);
}
else if (functionname != NULL && fmt[-1] == 'C')
{
if (filename == (char *) NULL)
filename = abfd->filename;
if (last_bfd == NULL
|| last_file == NULL
|| last_function == NULL
|| last_bfd != abfd
|| strcmp (last_file, filename) != 0
|| strcmp (last_function, functionname) != 0)
{
/* We use abfd->filename in this initial line,
in case filename is a .h file or something
similarly unhelpful. */
finfo (fp, "%B: In function `%T':\n",
abfd, functionname);
last_bfd = abfd;
if (last_file != NULL)
free (last_file);
last_file = buystring (filename);
if (last_function != NULL)
free (last_function);
last_function = buystring (functionname);
}
discard_last = false;
if (linenumber != 0)
fprintf (fp, "%s:%u", filename, linenumber);
else
finfo (fp, "%s(%s+0x%v)", filename, section->name,
offset);
}
else if (filename == NULL
|| strcmp (filename, abfd->filename) == 0)
{
finfo (fp, "%B(%s+0x%v)", abfd, section->name, offset);
if (linenumber != 0)
finfo (fp, ":%u", linenumber);
}
else if (linenumber != 0)
finfo (fp, "%B:%s:%u", abfd, filename, linenumber);
else
finfo (fp, "%B(%s+0x%v):%s", abfd, section->name, offset,
filename);
}
else
finfo (fp, "%B(%s+0x%v)", abfd, section->name, 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;
}
}
}
if (fatal == true)
xexit(1);
}
/* 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.) */
void
#if USE_STDARG
info_msg (const char *fmt, ...)
#else
info_msg (va_alist)
va_dcl
#endif
{
va_list arg;
#if ! USE_STDARG
const char *fmt;
va_start (arg);
fmt = va_arg (arg, const char *);
#else
va_start (arg, fmt);
#endif
vfinfo (stdout, fmt, arg);
va_end (arg);
}
/* ('e' for error.) Format info message and print on stderr. */
void
#if USE_STDARG
einfo (const char *fmt, ...)
#else
einfo (va_alist)
va_dcl
#endif
{
va_list arg;
#if ! USE_STDARG
const char *fmt;
va_start (arg);
fmt = va_arg (arg, const char *);
#else
va_start (arg, fmt);
#endif
vfinfo (stderr, fmt, arg);
va_end (arg);
}
void
info_assert (file, line)
const char *file;
unsigned int line;
{
einfo ("%F%P: internal error %s %d\n", file, line);
}
char *
buystring (x)
CONST char *CONST x;
{
size_t l = strlen(x)+1;
char *r = xmalloc(l);
memcpy(r, x,l);
return r;
}
/* ('m' for map) Format info message and print on map. */
void
#if USE_STDARG
minfo (const char *fmt, ...)
#else
minfo (va_alist)
va_dcl
#endif
{
va_list arg;
#if ! USE_STDARG
const char *fmt;
va_start (arg);
fmt = va_arg (arg, const char *);
#else
va_start (arg, fmt);
#endif
vfinfo (config.map_file, fmt, arg);
va_end (arg);
}
static void
#if USE_STDARG
finfo (FILE *file, const char *fmt, ...)
#else
finfo (va_alist)
va_dcl
#endif
{
va_list arg;
#if ! USE_STDARG
FILE *file;
const char *fmt;
va_start (arg);
file = va_arg (arg, FILE *);
fmt = va_arg (arg, const char *);
#else
va_start (arg, fmt);
#endif
vfinfo (file, fmt, arg);
va_end (arg);
}
/* Functions to print the link map. */
void
print_space ()
{
fprintf (config.map_file, " ");
}
void
print_nl ()
{
fprintf (config.map_file, "\n");
}
void
print_address (value)
bfd_vma value;
{
fprintf_vma (config.map_file, value);
}