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* Makefile.am (CFILES): Add cxxfilt.c.
	(cxxfilt_SOURCES): Now just cxxfilt.c $(BULIBS).
	(cxxfilt_LDADD): Delete.
	Remove all references to underscore.c.
	Regen dependencies.
	* configure.in: Define TARGET_PREPENDS_UNDERSCORE in
	config.h from $UNDERSCORE, rather than AC_SUBSTing it.
	* binutils/cxxfilt.c: Moved here from gcc/cp, minor
	adjustments to fit into binutils framework.
	* configure, config.in, Makefile.in, doc/Makefile.in: Regenerate.

gcc/cp:
	* Make-lang.in: Remove all references to the demangler.
	* cxxfilt.c: Moved to binutils.
This commit is contained in:
Zack Weinberg
2002-09-17 07:09:47 +00:00
parent d9025a1885
commit bb279dc026
8 changed files with 523 additions and 289 deletions
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294
binutils/cxxfilt.c Normal file
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/* Demangler for GNU C++ - main program
Copyright 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.uucp)
Rewritten by Fred Fish (fnf@cygnus.com) for ARM and Lucid demangling
Modified by Satish Pai (pai@apollo.hp.com) for HP demangling
This file is part of GCC.
GCC 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.
GCC 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 GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include "config.h"
#include "bfd.h"
#include "bucomm.h"
#include "libiberty.h"
#include "demangle.h"
#include "getopt.h"
#include "safe-ctype.h"
static int flags = DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE;
static void demangle_it PARAMS ((char *));
static void usage PARAMS ((FILE *, int)) ATTRIBUTE_NORETURN;
static void print_demangler_list PARAMS ((FILE *));
static void
demangle_it (mangled_name)
char *mangled_name;
{
char *result;
/* For command line args, also try to demangle type encodings. */
result = cplus_demangle (mangled_name, flags | DMGL_TYPES);
if (result == NULL)
{
printf ("%s\n", mangled_name);
}
else
{
printf ("%s\n", result);
free (result);
}
}
static void
print_demangler_list (stream)
FILE *stream;
{
const struct demangler_engine *demangler;
fprintf (stream, "{%s", libiberty_demanglers->demangling_style_name);
for (demangler = libiberty_demanglers + 1;
demangler->demangling_style != unknown_demangling;
++demangler)
fprintf (stream, ",%s", demangler->demangling_style_name);
fprintf (stream, "}");
}
static void
usage (stream, status)
FILE *stream;
int status;
{
fprintf (stream, "\
Usage: %s [-_] [-n] [--strip-underscores] [--no-strip-underscores] \n",
program_name);
fprintf (stream, "\
[-s ");
print_demangler_list (stream);
fprintf (stream, "]\n");
fprintf (stream, "\
[--format ");
print_demangler_list (stream);
fprintf (stream, "]\n");
fprintf (stream, "\
[--help] [--version] [arg...]\n");
exit (status);
}
#define MBUF_SIZE 32767
char mbuffer[MBUF_SIZE];
int strip_underscore = 0;
static const struct option long_options[] = {
{"strip-underscores", no_argument, 0, '_'},
{"format", required_argument, 0, 's'},
{"help", no_argument, 0, 'h'},
{"no-strip-underscores", no_argument, 0, 'n'},
{"version", no_argument, 0, 'v'},
{0, no_argument, 0, 0}
};
static const char *
standard_symbol_characters PARAMS ((void));
static const char *
hp_symbol_characters PARAMS ((void));
/* Return the string of non-alnum characters that may occur
as a valid symbol component, in the standard assembler symbol
syntax. */
static const char *
standard_symbol_characters ()
{
return "_$.";
}
/* Return the string of non-alnum characters that may occur
as a valid symbol name component in an HP object file.
Note that, since HP's compiler generates object code straight from
C++ source, without going through an assembler, its mangled
identifiers can use all sorts of characters that no assembler would
tolerate, so the alphabet this function creates is a little odd.
Here are some sample mangled identifiers offered by HP:
typeid*__XT24AddressIndExpClassMember_
[Vftptr]key:__dt__32OrdinaryCompareIndExpClassMemberFv
__ct__Q2_9Elf64_Dyn18{unnamed.union.#1}Fv
This still seems really weird to me, since nowhere else in this
file is there anything to recognize curly brackets, parens, etc.
I've talked with Srikanth <srikanth@cup.hp.com>, and he assures me
this is right, but I still strongly suspect that there's a
misunderstanding here.
If we decide it's better for c++filt to use HP's assembler syntax
to scrape identifiers out of its input, here's the definition of
the symbol name syntax from the HP assembler manual:
Symbols are composed of uppercase and lowercase letters, decimal
digits, dollar symbol, period (.), ampersand (&), pound sign(#) and
underscore (_). A symbol can begin with a letter, digit underscore or
dollar sign. If a symbol begins with a digit, it must contain a
non-digit character.
So have fun. */
static const char *
hp_symbol_characters ()
{
return "_$.<>#,*&[]:(){}";
}
extern int main PARAMS ((int, char **));
int
main (argc, argv)
int argc;
char **argv;
{
char *result;
int c;
const char *valid_symbols;
enum demangling_styles style = auto_demangling;
program_name = argv[0];
xmalloc_set_program_name (program_name);
strip_underscore = TARGET_PREPENDS_UNDERSCORE;
while ((c = getopt_long (argc, argv, "_ns:", long_options, (int *) 0)) != EOF)
{
switch (c)
{
case '?':
usage (stderr, 1);
break;
case 'h':
usage (stdout, 0);
case 'n':
strip_underscore = 0;
break;
case 'v':
print_version ("c++filt");
return (0);
case '_':
strip_underscore = 1;
break;
case 's':
{
style = cplus_demangle_name_to_style (optarg);
if (style == unknown_demangling)
{
fprintf (stderr, "%s: unknown demangling style `%s'\n",
program_name, optarg);
return (1);
}
else
cplus_demangle_set_style (style);
}
break;
}
}
if (optind < argc)
{
for ( ; optind < argc; optind++)
{
demangle_it (argv[optind]);
}
}
else
{
switch (current_demangling_style)
{
case gnu_demangling:
case lucid_demangling:
case arm_demangling:
case java_demangling:
case edg_demangling:
case gnat_demangling:
case gnu_v3_demangling:
case auto_demangling:
valid_symbols = standard_symbol_characters ();
break;
case hp_demangling:
valid_symbols = hp_symbol_characters ();
break;
default:
/* Folks should explicitly indicate the appropriate alphabet for
each demangling. Providing a default would allow the
question to go unconsidered. */
fatal ("Internal error: no symbol alphabet for current style");
}
for (;;)
{
int i = 0;
c = getchar ();
/* Try to read a label. */
while (c != EOF && (ISALNUM (c) || strchr (valid_symbols, c)))
{
if (i >= MBUF_SIZE-1)
break;
mbuffer[i++] = c;
c = getchar ();
}
if (i > 0)
{
int skip_first = 0;
mbuffer[i] = 0;
if (mbuffer[0] == '.' || mbuffer[0] == '$')
++skip_first;
if (strip_underscore && mbuffer[skip_first] == '_')
++skip_first;
if (skip_first > i)
skip_first = i;
flags |= (int) style;
result = cplus_demangle (mbuffer + skip_first, flags);
if (result)
{
if (mbuffer[0] == '.')
putc ('.', stdout);
fputs (result, stdout);
free (result);
}
else
fputs (mbuffer, stdout);
fflush (stdout);
}
if (c == EOF)
break;
putchar (c);
fflush (stdout);
}
}
return (0);
}