0,0 → 1,530 |
/* ldmisc.c |
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011, 2012, 2013 |
Free Software Foundation, Inc. |
Written by Steve Chamberlain of Cygnus Support. |
|
This file is part of the GNU Binutils. |
|
This program 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 3 of the License, or |
(at your option) any later version. |
|
This program 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 this program; if not, write to the Free Software |
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
MA 02110-1301, USA. */ |
|
#include "sysdep.h" |
#include "bfd.h" |
#include "bfdlink.h" |
#include "libiberty.h" |
#include "filenames.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" |
#include "ldmain.h" |
#include "ldfile.h" |
#include "elf-bfd.h" |
|
/* |
%% 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 |
%H like %C but in addition emit section+offset |
%I filename from a lang_input_statement_type |
%P print program name |
%R info about a relent |
%S print script file and linenumber from etree_type. |
%T symbol name |
%V hex bfd_vma |
%W hex bfd_vma with 0x with no leading zeros taking up 8 spaces |
%X no object output, fail return |
%d integer, like printf |
%ld long, like printf |
%lu unsigned long, like printf |
%p native (host) void* pointer, like printf |
%s arbitrary string, like printf |
%u integer, like printf |
%v hex bfd_vma, no leading zeros |
*/ |
|
void |
vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning) |
{ |
bfd_boolean fatal = FALSE; |
|
while (*fmt != '\0') |
{ |
const char *str = fmt; |
while (*fmt != '%' && *fmt != '\0') |
fmt++; |
if (fmt != str) |
if (fwrite (str, 1, fmt - str, fp)) |
{ |
/* Ignore. */ |
} |
|
if (*fmt == '%') |
{ |
fmt++; |
switch (*fmt++) |
{ |
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")); |
break; |
} |
else if (demangling) |
{ |
char *demangled; |
|
demangled = bfd_demangle (link_info.output_bfd, name, |
DMGL_ANSI | DMGL_PARAMS); |
if (demangled != NULL) |
{ |
fprintf (fp, "%s", demangled); |
free (demangled); |
break; |
} |
} |
fprintf (fp, "%s", name); |
} |
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, "%s generated", program_name); |
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; |
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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 |
&& filename_cmp (i->local_sym_name, i->filename) != 0) |
fprintf (fp, " (%s)", i->filename); |
} |
break; |
|
case 'S': |
/* Print script file and linenumber. */ |
{ |
etree_type node; |
etree_type *tp = va_arg (arg, etree_type *); |
|
if (tp == NULL) |
{ |
tp = &node; |
tp->type.filename = ldlex_filename (); |
tp->type.lineno = lineno; |
} |
if (tp->type.filename != NULL) |
fprintf (fp, "%s:%u", tp->type.filename, tp->type.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': |
case 'H': |
/* 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; |
asymbol **asymbols = NULL; |
const char *filename; |
const char *functionname; |
unsigned int linenumber; |
bfd_boolean discard_last; |
bfd_boolean done; |
|
abfd = va_arg (arg, bfd *); |
section = va_arg (arg, asection *); |
offset = va_arg (arg, bfd_vma); |
|
if (abfd != NULL) |
{ |
if (!bfd_generic_link_read_symbols (abfd)) |
einfo (_("%B%F: could not read symbols: %E\n"), abfd); |
|
asymbols = bfd_get_outsymbols (abfd); |
} |
|
/* 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 instead. */ |
discard_last = TRUE; |
if (abfd != NULL |
&& bfd_find_nearest_line (abfd, section, asymbols, offset, |
&filename, &functionname, |
&linenumber)) |
{ |
if (functionname != NULL |
&& (fmt[-1] == 'C' || fmt[-1] == 'H')) |
{ |
/* 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 |
&& filename_cmp (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); |
|
done = fmt[-1] != 'H'; |
if (functionname != NULL && fmt[-1] == 'G') |
lfinfo (fp, "%T", functionname); |
else if (filename != NULL && linenumber != 0) |
fprintf (fp, "%u%s", linenumber, done ? "" : ":"); |
else |
done = FALSE; |
} |
else |
{ |
lfinfo (fp, "%B:", abfd); |
done = FALSE; |
} |
if (!done) |
lfinfo (fp, "(%A+0x%v)", section, 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 'p': |
/* native (host) void* pointer, like printf */ |
fprintf (fp, "%p", va_arg (arg, void *)); |
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; |
|
case 'l': |
if (*fmt == 'd') |
{ |
fprintf (fp, "%ld", va_arg (arg, long)); |
++fmt; |
break; |
} |
else if (*fmt == 'u') |
{ |
fprintf (fp, "%lu", va_arg (arg, unsigned long)); |
++fmt; |
break; |
} |
/* Fall thru */ |
|
default: |
fprintf (fp, "%%%c", fmt[-1]); |
break; |
} |
} |
} |
|
if (is_warning && config.fatal_warnings) |
config.make_executable = FALSE; |
|
if (fatal) |
xexit (1); |
} |
|
/* Format info message and print on stdout. */ |
|
/* (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, ...) |
{ |
va_list arg; |
|
va_start (arg, fmt); |
vfinfo (stdout, fmt, arg, FALSE); |
va_end (arg); |
} |
|
/* ('e' for error.) Format info message and print on stderr. */ |
|
void |
einfo (const char *fmt, ...) |
{ |
va_list arg; |
|
fflush (stdout); |
va_start (arg, fmt); |
vfinfo (stderr, fmt, arg, TRUE); |
va_end (arg); |
fflush (stderr); |
} |
|
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. */ |
|
void |
minfo (const char *fmt, ...) |
{ |
if (config.map_file != NULL) |
{ |
va_list arg; |
|
va_start (arg, fmt); |
vfinfo (config.map_file, fmt, arg, FALSE); |
va_end (arg); |
} |
} |
|
void |
lfinfo (FILE *file, const char *fmt, ...) |
{ |
va_list arg; |
|
va_start (arg, fmt); |
vfinfo (file, fmt, arg, FALSE); |
va_end (arg); |
} |
|
/* Functions to print the link map. */ |
|
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. */ |
|
void |
ld_abort (const char *file, int line, const char *fn) |
{ |
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); |
} |