Mercurial > hg > graal-compiler
diff src/os/linux/vm/decoder_linux.cpp @ 2022:2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never
author | zgu |
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date | Sat, 11 Dec 2010 13:20:56 -0500 |
parents | |
children | d7e3846464d0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/linux/vm/decoder_linux.cpp Sat Dec 11 13:20:56 2010 -0500 @@ -0,0 +1,45 @@ +/* + * Copyright (c) 1997, 2010, 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.hpp" + +#include <cxxabi.h> + +bool Decoder::demangle(const char* symbol, char *buf, int buflen) { + int status; + char* result; + size_t size = (size_t)buflen; + + // 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; +}