1/* 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25#include "prims/jvm.h" 26#include "utilities/decoder_elf.hpp" 27 28#include <cxxabi.h> 29 30bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) { 31 int status; 32 char* result; 33 size_t size = (size_t)buflen; 34 35#ifdef PPC64 36 // On PPC64 ElfDecoder::decode() may return a dot (.) prefixed name 37 // (see elfFuncDescTable.hpp for details) 38 if (symbol && *symbol == '.') symbol += 1; 39#endif 40 41 // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small, 42 // __cxa_demangle will call system "realloc" for additional memory, which 43 // may use different malloc/realloc mechanism that allocates 'buf'. 44 if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) { 45 jio_snprintf(buf, buflen, "%s", result); 46 // call c library's free 47 ::free(result); 48 return true; 49 } 50 return false; 51} 52 53