1 /**************************************************************************
3 * Copyright 2007-2011 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
34 #include "trace_file.hpp"
35 #include "trace_writer.hpp"
36 #include "trace_format.hpp"
42 static const char *memcpy_args[3] = {"dest", "src", "n"};
43 const FunctionSig memcpy_sig = {0, "memcpy", 3, memcpy_args};
45 static const char *malloc_args[1] = {"size"};
46 const FunctionSig malloc_sig = {1, "malloc", 1, malloc_args};
48 static const char *free_args[1] = {"ptr"};
49 const FunctionSig free_sig = {2, "free", 1, free_args};
51 static const char *realloc_args[2] = {"ptr", "size"};
52 const FunctionSig realloc_sig = {3, "realloc", 2, realloc_args};
55 static void exceptionCallback(void)
61 LocalWriter::LocalWriter() :
64 // Install the signal handlers as early as possible, to prevent
65 // interfering with the application's signal handling.
66 os::setExceptionCallback(exceptionCallback);
69 LocalWriter::~LocalWriter()
71 os::resetExceptionCallback();
75 LocalWriter::open(void) {
80 lpFileName = const_cast<char *>(getenv("TRACE_FILE"));
82 lpFileName = szFileName.buf(PATH_MAX);
83 static unsigned dwCounter = 0;
85 os::Path process = os::getProcessName();
87 process.trimExtension();
89 process.trimDirectory();
91 os::Path prefix = os::getCurrentDir();
98 snprintf(lpFileName, PATH_MAX, "%s.%u.trace", prefix.str(), dwCounter);
100 snprintf(lpFileName, PATH_MAX, "%s.trace", prefix.str());
102 file = fopen(lpFileName, "rb");
112 os::log("apitrace: tracing to %s\n", lpFileName);
114 Writer::open(lpFileName);
117 // For debugging the exception handler
122 unsigned LocalWriter::beginEnter(const FunctionSig *sig) {
126 if (!m_file->isOpened()) {
130 return Writer::beginEnter(sig);
133 void LocalWriter::endEnter(void) {
139 void LocalWriter::beginLeave(unsigned call) {
142 Writer::beginLeave(call);
145 void LocalWriter::endLeave(void) {
151 void LocalWriter::flush(void) {
153 * Do nothing if the mutex is already acquired (e.g., if a segfault happen
154 * while writing the file) to prevent dead-lock.
159 if (m_file->isOpened()) {
160 os::log("apitrace: flushing trace due to an exception\n");
168 LocalWriter localWriter;
171 } /* namespace trace */