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/*
* This file is part of ltrace.
* Copyright (C) 2012,2013 Petr Machata, Red Hat Inc.
* Copyright (C) 1998,1999,2003,2004,2008,2009 Juan Cespedes
* Copyright (C) 2006 Ian Wienand
*
* 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 2 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 St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "demangle.h"
#include "dict.h"
#include "debug.h"
#ifdef USE_DEMANGLE
/*****************************************************************************/
static struct dict *name_cache = NULL;
const char *
my_demangle(const char *function_name) {
#ifdef USE_CXA_DEMANGLE
extern char *__cxa_demangle(const char *, char *, size_t *, int *);
#endif
debug(DEBUG_FUNCTION, "my_demangle(name=%s)", function_name);
if (name_cache == NULL) {
name_cache = malloc(sizeof(*name_cache));
if (name_cache != NULL)
DICT_INIT(name_cache, char *, const char *,
dict_hash_string, dict_eq_string, NULL);
}
const char *tmp = NULL;
if (name_cache != NULL
&& DICT_FIND_VAL(name_cache, &function_name, &tmp) == 0)
return tmp;
#ifdef HAVE_LIBIBERTY
tmp = cplus_demangle(function_name,
DMGL_ANSI | DMGL_PARAMS);
#elif defined USE_CXA_DEMANGLE
int status = 0;
tmp = __cxa_demangle(function_name, NULL, NULL, &status);
#endif
if (name_cache == NULL || tmp == NULL) {
fail:
if (tmp == NULL)
return function_name;
return tmp;
}
const char *fn_copy = strdup(function_name);
if (fn_copy == NULL)
goto fail;
if (DICT_INSERT(name_cache, &fn_copy, &tmp) < 0) {
free((char *)fn_copy);
goto fail;
}
return tmp;
}
#endif
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