85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* This file is part of ltrace.
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* Copyright (C) 2012,2013 Petr Machata, Red Hat Inc.
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* Copyright (C) 1998,1999,2003,2004,2008,2009 Juan Cespedes
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* Copyright (C) 2006 Ian Wienand
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "demangle.h"
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#include "dict.h"
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#include "debug.h"
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#ifdef USE_DEMANGLE
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/*****************************************************************************/
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static struct dict *name_cache = NULL;
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const char *
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my_demangle(const char *function_name) {
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#ifdef USE_CXA_DEMANGLE
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extern char *__cxa_demangle(const char *, char *, size_t *, int *);
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#endif
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debug(DEBUG_FUNCTION, "my_demangle(name=%s)", function_name);
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if (name_cache == NULL) {
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name_cache = malloc(sizeof(*name_cache));
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if (name_cache != NULL)
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DICT_INIT(name_cache, char *, const char *,
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dict_hash_string, dict_eq_string, NULL);
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}
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const char *tmp = NULL;
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if (name_cache != NULL
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&& DICT_FIND_VAL(name_cache, &function_name, &tmp) == 0)
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return tmp;
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#ifdef HAVE_LIBIBERTY
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tmp = cplus_demangle(function_name,
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DMGL_ANSI | DMGL_PARAMS);
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#elif defined USE_CXA_DEMANGLE
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int status = 0;
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tmp = __cxa_demangle(function_name, NULL, NULL, &status);
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#endif
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if (name_cache == NULL || tmp == NULL) {
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fail:
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if (tmp == NULL)
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return function_name;
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return tmp;
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}
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const char *fn_copy = strdup(function_name);
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if (fn_copy == NULL)
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goto fail;
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if (DICT_INSERT(name_cache, &fn_copy, &tmp) < 0) {
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free((char *)fn_copy);
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goto fail;
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}
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return tmp;
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}
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#endif
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