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7003748: Decode C stack frames when symbols are presented (PhoneHome project)

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Implemented in-process C native stack frame decoding when symbols are available.

Reviewed-by: coleenp, never
This commit is contained in:
Zhengyu Gu 2010-12-11 13:20:56 -05:00
parent 8006fe8f75
commit 61a4658b22
17 changed files with 1177 additions and 34 deletions
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45
hotspot/src/os/linux/vm/decoder_linux.cpp Normal file
View file

@ -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;
}

22
hotspot/src/os/linux/vm/os_linux.cpp
View file

@ -60,6 +60,7 @@
#include "services/attachListener.hpp"
#include "services/runtimeService.hpp"
#include "thread_linux.inline.hpp"
#include "utilities/decoder.hpp"
#include "utilities/defaultStream.hpp"
#include "utilities/events.hpp"
#include "utilities/growableArray.hpp"
@ -1671,14 +1672,23 @@ bool os::dll_address_to_function_name(address addr, char *buf,
Dl_info dlinfo;
if (dladdr((void*)addr, &dlinfo) && dlinfo.dli_sname != NULL) {
if (buf) jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname);
if (offset) *offset = addr - (address)dlinfo.dli_saddr;
if (buf != NULL) {
if(!Decoder::demangle(dlinfo.dli_sname, buf, buflen)) {
jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname);
}
}
if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr;
return true;
} else {
if (buf) buf[0] = '\0';
if (offset) *offset = -1;
return false;
} else if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != 0) {
if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase),
dlinfo.dli_fname, buf, buflen, offset) == Decoder::no_error) {
return true;
}
}
if (buf != NULL) buf[0] = '\0';
if (offset != NULL) *offset = -1;
return false;
}
struct _address_to_library_name {