Mercurial > hg > truffle
view src/os/linux/vm/decoder_linux.cpp @ 17848:6048424d3865
8038201: Clean up misleading usage of malloc() in init_system_properties_values()
Summary: Remove the misleading malloc macro and cleanup the code
Reviewed-by: dsamersoff, kvn
Contributed-by: goetz.lindenmaier@sap.com
author | goetz |
---|---|
date | Thu, 10 Apr 2014 04:07:45 -0700 |
parents | e7cbc95179c4 |
children | 4ca6dc0799b6 |
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/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "prims/jvm.h" #include "utilities/decoder_elf.hpp" #include <cxxabi.h> bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) { int status; char* result; size_t size = (size_t)buflen; #ifdef PPC64 // On PPC64 ElfDecoder::decode() may return a dot (.) prefixed name // (see elfFuncDescTable.hpp for details) if (symbol && *symbol == '.') symbol += 1; #endif // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small, // __cxa_demangle will call system "realloc" for additional memory, which // may use different malloc/realloc mechanism that allocates 'buf'. if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) { jio_snprintf(buf, buflen, "%s", result); // call c library's free ::free(result); return true; } return false; }