zgu@2364: /*
mikael@4153:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
zgu@2364:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@2364:  *
zgu@2364:  * This code is free software; you can redistribute it and/or modify it
zgu@2364:  * under the terms of the GNU General Public License version 2 only, as
zgu@2364:  * published by the Free Software Foundation.
zgu@2364:  *
zgu@2364:  * This code is distributed in the hope that it will be useful, but WITHOUT
zgu@2364:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@2364:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
zgu@2364:  * version 2 for more details (a copy is included in the LICENSE file that
zgu@2364:  * accompanied this code).
zgu@2364:  *
zgu@2364:  * You should have received a copy of the GNU General Public License version
zgu@2364:  * 2 along with this work; if not, write to the Free Software Foundation,
zgu@2364:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@2364:  *
zgu@2364:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@2364:  * or visit www.oracle.com if you need additional information or have any
zgu@2364:  * questions.
zgu@2364:  *
zgu@2364:  */
zgu@2364: 
zgu@2364: #include "prims/jvm.h"
zgu@3430: #include "utilities/decoder_elf.hpp"
zgu@2364: 
zgu@2364: #include <cxxabi.h>
zgu@2364: 
zgu@3430: bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) {
zgu@2364:   int   status;
zgu@2364:   char* result;
zgu@2364:   size_t size = (size_t)buflen;
zgu@2364: 
simonis@6491: #ifdef PPC64
simonis@6491:   // On PPC64 ElfDecoder::decode() may return a dot (.) prefixed name
simonis@6491:   // (see elfFuncDescTable.hpp for details)
simonis@6491:   if (symbol && *symbol == '.') symbol += 1;
simonis@6491: #endif
simonis@6491: 
zgu@2364:   // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small,
zgu@2364:   // __cxa_demangle will call system "realloc" for additional memory, which
zgu@2364:   // may use different malloc/realloc mechanism that allocates 'buf'.
zgu@2364:   if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) {
zgu@2364:     jio_snprintf(buf, buflen, "%s", result);
zgu@2364:       // call c library's free
zgu@2364:       ::free(result);
zgu@2364:       return true;
zgu@2364:   }
zgu@2364:   return false;
zgu@2364: }
zgu@3430: