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Add Chromium-only Blender WebEngine parity work

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2026-08-12 04:47:48 -04:00
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25
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# This is the official list of glog authors for copyright purposes.
# This file is distinct from the CONTRIBUTORS files.
# See the latter for an explanation.
#
# Names should be added to this file as:
# Name or Organization <email address>
# The email address is not required for organizations.
#
# Please keep the list sorted.
Abhishek Dasgupta <abhi2743@gmail.com>
Abhishek Parmar <abhishek@orng.net>
Andrew Schwartzmeyer <andrew@schwartzmeyer.com>
Andy Ying <andy@trailofbits.com>
Brian Silverman <bsilver16384@gmail.com>
Google Inc.
Guillaume Dumont <dumont.guillaume@gmail.com>
Michael Tanner <michael@tannertaxpro.com>
MiniLight <MiniLightAR@Gmail.com>
romange <romange@users.noreply.github.com>
Roman Perepelitsa <roman.perepelitsa@gmail.com>
Sergiu Deitsch <sergiu.deitsch@gmail.com>
tbennun <tbennun@gmail.com>
Teddy Reed <teddy@prosauce.org>
Zhongming Qu <qzmfranklin@gmail.com>

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# SPDX-FileCopyrightText: 2016 Blender Foundation
#
# SPDX-License-Identifier: GPL-2.0-or-later
set(INC
src
../gflags/src
)
set(INC_SYS
)
set(SRC
src/demangle.cc
src/logging.cc
src/raw_logging.cc
src/signalhandler.cc
src/symbolize.cc
src/utilities.cc
src/vlog_is_on.cc
src/demangle.h
src/symbolize.h
src/utilities.h
src/config.h
src/config_freebsd.h
src/config_haiku.h
src/config_hurd.h
src/config_linux.h
src/config_mac.h
src/config_netbsd.h
src/config_openbsd.h
src/base/commandlineflags.h
src/base/googleinit.h
src/base/mutex.h
src/stacktrace.h
src/stacktrace_generic-inl.h
src/stacktrace_libunwind-inl.h
src/stacktrace_powerpc-inl.h
src/stacktrace_x86_64-inl.h
src/stacktrace_x86-inl.h
src/stacktrace_windows-inl.h
)
set(LIB
)
# Suppress warnings as GLOG has its own define.
if(HAVE_EXECINFO_H)
remove_definitions(-DHAVE_EXECINFO_H)
endif()
if(NOT WITH_SYSTEM_GFLAGS)
list(APPEND LIB
extern_gflags
)
endif()
if(WIN32)
list(APPEND SRC
src/windows/port.cc
src/windows/glog/raw_logging.h
src/windows/glog/vlog_is_on.h
src/windows/glog/logging.h
src/windows/glog/log_severity.h
src/windows/glog/stl_logging.h
src/windows/port.h
src/windows/config.h
)
list(APPEND INC
src/windows
)
if(MSVC)
# Suppress warning about google::LogMessageFatal::~LogMessageFatal
# not returning.
add_definitions("/wd4722")
endif()
else()
list(APPEND INC
include
)
list(APPEND SRC
include/glog/logging.h
include/glog/log_severity.h
include/glog/raw_logging.h
include/glog/stl_logging.h
include/glog/vlog_is_on.h
)
endif()
add_definitions(${GFLAGS_DEFINES})
add_definitions(${GLOG_DEFINES})
blender_add_lib(extern_glog "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
if(MSVC_CLANG)
# clang-cl emits these and given upstream is EOL just suppress them
target_compile_options(extern_glog PRIVATE -Wno-microsoft-cast -Wno-invalid-noreturn)
endif()

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Copyright (c) 2008, Google Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
A function gettimeofday in utilities.cc is based on
http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/COPYING&q=GetSystemTimeAsFileTime%20license:bsd
The license of this code is:
Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> and contributors
All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name(s) of the above-listed copyright holder(s) nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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2019-01-22 Google Inc. <opensource@google.com>
* google-glog: version 0.4.0.
* See git log for the details.
2017-05-09 Google Inc. <opensource@google.com>
* google-glog: version 0.3.5
* See git log for the details.
2015-03-09 Google Inc. <opensource@google.com>
* google-glog: version 0.3.4
* See git log for the details.
2013-02-01 Google Inc. <opensource@google.com>
* google-glog: version 0.3.3
* Add --disable-rtti option for configure.
* Visual Studio build and test fix.
* QNX build fix (thanks vanuan).
* Reduce warnings.
* Fixed LOG_SYSRESULT (thanks ukai).
* FreeBSD build fix (thanks yyanagisawa).
* Clang build fix.
* Now users can re-initialize glog after ShutdownGoogleLogging.
* Color output support by GLOG_colorlogtostderr (thanks alexs).
* Now glog's ABI around flags are compatible with gflags.
* Document mentions how to modify flags from user programs.
2012-01-12 Google Inc. <opensource@google.com>
* google-glog: version 0.3.2
* Clang support.
* Demangler and stacktrace improvement for newer GCCs.
* Now fork(2) doesn't mess up log files.
* Make valgrind happier.
* Reduce warnings for more -W options.
* Provide a workaround for ERROR defined by windows.h.
2010-06-15 Google Inc. <opensource@google.com>
* google-glog: version 0.3.1
* GLOG_* environment variables now work even when gflags is installed.
* Snow leopard support.
* Now we can build and test from out side tree.
* Add DCHECK_NOTNULL.
* Add ShutdownGoogleLogging to close syslog (thanks DGunchev)
* Fix --enable-frame-pointers option (thanks kazuki.ohta)
* Fix libunwind detection (thanks giantchen)
2009-07-30 Google Inc. <opensource@google.com>
* google-glog: version 0.3.0
* Fix a deadlock happened when user uses glog with recent gflags.
* Suppress several unnecessary warnings (thanks keir).
* NetBSD and OpenBSD support.
* Use Win32API GetComputeNameA properly (thanks magila).
* Fix user name detection for Windows (thanks ademin).
* Fix several minor bugs.
2009-04-10 Google Inc. <opensource@google.com>
* google-glog: version 0.2.1
* Fix timestamps of VC++ version.
* Add pkg-config support (thanks Tomasz)
* Fix build problem when building with gtest (thanks Michael)
* Add --with-gflags option for configure (thanks Michael)
* Fixes for GCC 4.4 (thanks John)
2009-01-23 Google Inc. <opensource@google.com>
* google-glog: version 0.2
* Add initial Windows VC++ support.
* Google testing/mocking frameworks integration.
* Link pthread library automatically.
* Flush logs in signal handlers.
* Add macros LOG_TO_STRING, LOG_AT_LEVEL, DVLOG, and LOG_TO_SINK_ONLY.
* Log microseconds.
* Add --log_backtrace_at option.
* Fix some minor bugs.
2008-11-18 Google Inc. <opensource@google.com>
* google-glog: version 0.1.2
* Add InstallFailureSignalHandler(). (satorux)
* Re-organize the way to produce stacktraces.
* Don't define unnecessary macro DISALLOW_EVIL_CONSTRUCTORS.
2008-10-15 Google Inc. <opensource@google.com>
* google-glog: version 0.1.1
* Support symbolize for MacOSX 10.5.
* BUG FIX: --vmodule didn't work with gflags.
* BUG FIX: symbolize_unittest failed with GCC 4.3.
* Several fixes on the document.
2008-10-07 Google Inc. <opensource@google.com>
* google-glog: initial release:
The glog package contains a library that implements application-level
logging. This library provides logging APIs based on C++-style
streams and various helper macros.

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This repository contains a C++ implementation of the Google logging
module. Documentation for the implementation is in doc/.
See INSTALL for (generic) installation instructions for C++: basically
./configure && make && make install

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Project: Google Logging
URL: https://github.com/google/glog
License: SPDX:BSD-3-Clause
Upstream version: 0.4.0, 96a2f23dca4
Copyright: Copyright (c) 2006, Google Inc. All rights reserved.
Local modifications:
* Added per-platform config.h files so no configuration-time
checks for functions and so are needed.
* Added special definitions of HAVE_SNPRINTF and HAVE_LIB_GFLAGS
in Windows' specific config.h.
* Silenced syscall deprecation warnings on macOS >= 10.12.
* Usage of syscall() is not allowed and use getthrid() to
retreive the thread ID on OpenBSD

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// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef BASE_LOG_SEVERITY_H__
#define BASE_LOG_SEVERITY_H__
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
// Variables of type LogSeverity are widely taken to lie in the range
// [0, NUM_SEVERITIES-1]. Be careful to preserve this assumption if
// you ever need to change their values or add a new severity.
typedef int LogSeverity;
const int GLOG_INFO = 0, GLOG_WARNING = 1, GLOG_ERROR = 2, GLOG_FATAL = 3,
NUM_SEVERITIES = 4;
#ifndef GLOG_NO_ABBREVIATED_SEVERITIES
# ifdef ERROR
# error ERROR macro is defined. Define GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
# endif
const int INFO = GLOG_INFO, WARNING = GLOG_WARNING,
ERROR = GLOG_ERROR, FATAL = GLOG_FATAL;
#endif
// DFATAL is FATAL in debug mode, ERROR in normal mode
#ifdef NDEBUG
#define DFATAL_LEVEL ERROR
#else
#define DFATAL_LEVEL FATAL
#endif
extern GOOGLE_GLOG_DLL_DECL const char* const LogSeverityNames[NUM_SEVERITIES];
// NDEBUG usage helpers related to (RAW_)DCHECK:
//
// DEBUG_MODE is for small !NDEBUG uses like
// if (DEBUG_MODE) foo.CheckThatFoo();
// instead of substantially more verbose
// #ifndef NDEBUG
// foo.CheckThatFoo();
// #endif
//
// IF_DEBUG_MODE is for small !NDEBUG uses like
// IF_DEBUG_MODE( string error; )
// DCHECK(Foo(&error)) << error;
// instead of substantially more verbose
// #ifndef NDEBUG
// string error;
// DCHECK(Foo(&error)) << error;
// #endif
//
#ifdef NDEBUG
enum { DEBUG_MODE = 0 };
#define IF_DEBUG_MODE(x)
#else
enum { DEBUG_MODE = 1 };
#define IF_DEBUG_MODE(x) x
#endif
#endif // BASE_LOG_SEVERITY_H__

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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Maxim Lifantsev
//
// Thread-safe logging routines that do not allocate any memory or
// acquire any locks, and can therefore be used by low-level memory
// allocation and synchronization code.
#ifndef BASE_RAW_LOGGING_H_
#define BASE_RAW_LOGGING_H_
#include <time.h>
namespace google {
#include "glog/log_severity.h"
#include "glog/vlog_is_on.h"
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
// This is similar to LOG(severity) << format... and VLOG(level) << format..,
// but
// * it is to be used ONLY by low-level modules that can't use normal LOG()
// * it is desiged to be a low-level logger that does not allocate any
// memory and does not need any locks, hence:
// * it logs straight and ONLY to STDERR w/o buffering
// * it uses an explicit format and arguments list
// * it will silently chop off really long message strings
// Usage example:
// RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
// RAW_VLOG(3, "status is %i", status);
// These will print an almost standard log lines like this to stderr only:
// E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
// I0821 211317 file.cc:142] RAW: status is 20
#define RAW_LOG(severity, ...) \
do { \
switch (google::GLOG_ ## severity) { \
case 0: \
RAW_LOG_INFO(__VA_ARGS__); \
break; \
case 1: \
RAW_LOG_WARNING(__VA_ARGS__); \
break; \
case 2: \
RAW_LOG_ERROR(__VA_ARGS__); \
break; \
case 3: \
RAW_LOG_FATAL(__VA_ARGS__); \
break; \
default: \
break; \
} \
} while (0)
// The following STRIP_LOG testing is performed in the header file so that it's
// possible to completely compile out the logging code and the log messages.
#if STRIP_LOG == 0
#define RAW_VLOG(verboselevel, ...) \
do { \
if (VLOG_IS_ON(verboselevel)) { \
RAW_LOG_INFO(__VA_ARGS__); \
} \
} while (0)
#else
#define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG == 0
#define RAW_LOG_INFO(...) google::RawLog__(google::GLOG_INFO, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG <= 1
#define RAW_LOG_WARNING(...) google::RawLog__(google::GLOG_WARNING, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 1
#if STRIP_LOG <= 2
#define RAW_LOG_ERROR(...) google::RawLog__(google::GLOG_ERROR, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 2
#if STRIP_LOG <= 3
#define RAW_LOG_FATAL(...) google::RawLog__(google::GLOG_FATAL, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_FATAL(...) \
do { \
google::RawLogStub__(0, __VA_ARGS__); \
exit(1); \
} while (0)
#endif // STRIP_LOG <= 3
// Similar to CHECK(condition) << message,
// but for low-level modules: we use only RAW_LOG that does not allocate memory.
// We do not want to provide args list here to encourage this usage:
// if (!cond) RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
// so that the args are not computed when not needed.
#define RAW_CHECK(condition, message) \
do { \
if (!(condition)) { \
RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
} \
} while (0)
// Debug versions of RAW_LOG and RAW_CHECK
#ifndef NDEBUG
#define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
#else // NDEBUG
#define RAW_DLOG(severity, ...) \
while (false) \
RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) \
while (false) \
RAW_CHECK(condition, message)
#endif // NDEBUG
// Stub log function used to work around for unused variable warnings when
// building with STRIP_LOG > 0.
static inline void RawLogStub__(int /* ignored */, ...) {
}
// Helper function to implement RAW_LOG and RAW_VLOG
// Logs format... at "severity" level, reporting it
// as called from file:line.
// This does not allocate memory or acquire locks.
GOOGLE_GLOG_DLL_DECL void RawLog__(LogSeverity severity,
const char* file,
int line,
const char* format, ...)
;
}
#endif // BASE_RAW_LOGGING_H_

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// Copyright (c) 2003, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Stream output operators for STL containers; to be used for logging *only*.
// Inclusion of this file lets you do:
//
// list<string> x;
// LOG(INFO) << "data: " << x;
// vector<int> v1, v2;
// CHECK_EQ(v1, v2);
//
// If you want to use this header file with hash maps or slist, you
// need to define macros before including this file:
//
// - GLOG_STL_LOGGING_FOR_UNORDERED - <unordered_map> and <unordered_set>
// - GLOG_STL_LOGGING_FOR_TR1_UNORDERED - <tr1/unordered_(map|set)>
// - GLOG_STL_LOGGING_FOR_EXT_HASH - <ext/hash_(map|set)>
// - GLOG_STL_LOGGING_FOR_EXT_SLIST - <ext/slist>
//
#ifndef UTIL_GTL_STL_LOGGING_INL_H_
#define UTIL_GTL_STL_LOGGING_INL_H_
#if !1
# error We do not support stl_logging for this compiler
#endif
#include <deque>
#include <list>
#include <map>
#include <ostream>
#include <set>
#include <utility>
#include <vector>
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
# include <unordered_map>
# include <unordered_set>
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
# include <tr1/unordered_map>
# include <tr1/unordered_set>
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
# include <ext/hash_set>
# include <ext/hash_map>
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
# include <ext/slist>
#endif
// Forward declare these two, and define them after all the container streams
// operators so that we can recurse from pair -> container -> container -> pair
// properly.
template<class First, class Second>
std::ostream& operator<<(std::ostream& out, const std::pair<First, Second>& p);
namespace google {
template<class Iter>
void PrintSequence(std::ostream& out, Iter begin, Iter end);
}
#define OUTPUT_TWO_ARG_CONTAINER(Sequence) \
template<class T1, class T2> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_TWO_ARG_CONTAINER(std::vector)
OUTPUT_TWO_ARG_CONTAINER(std::deque)
OUTPUT_TWO_ARG_CONTAINER(std::list)
#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
OUTPUT_TWO_ARG_CONTAINER(__gnu_cxx::slist)
#endif
#undef OUTPUT_TWO_ARG_CONTAINER
#define OUTPUT_THREE_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_THREE_ARG_CONTAINER(std::set)
OUTPUT_THREE_ARG_CONTAINER(std::multiset)
#undef OUTPUT_THREE_ARG_CONTAINER
#define OUTPUT_FOUR_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3, class T4> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3, T4>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_FOUR_ARG_CONTAINER(std::map)
OUTPUT_FOUR_ARG_CONTAINER(std::multimap)
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
OUTPUT_FOUR_ARG_CONTAINER(std::unordered_set)
OUTPUT_FOUR_ARG_CONTAINER(std::unordered_multiset)
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_set)
OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_multiset)
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_set)
OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_multiset)
#endif
#undef OUTPUT_FOUR_ARG_CONTAINER
#define OUTPUT_FIVE_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3, class T4, class T5> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3, T4, T5>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_map)
OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_multimap)
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_map)
OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_multimap)
#endif
#undef OUTPUT_FIVE_ARG_CONTAINER
template<class First, class Second>
inline std::ostream& operator<<(std::ostream& out,
const std::pair<First, Second>& p) {
out << '(' << p.first << ", " << p.second << ')';
return out;
}
namespace google {
template<class Iter>
inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
// Output at most 100 elements -- appropriate if used for logging.
for (int i = 0; begin != end && i < 100; ++i, ++begin) {
if (i > 0) out << ' ';
out << *begin;
}
if (begin != end) {
out << " ...";
}
}
}
// Note that this is technically undefined behavior! We are adding things into
// the std namespace for a reason though -- we are providing new operations on
// types which are themselves defined with this namespace. Without this, these
// operator overloads cannot be found via ADL. If these definitions are not
// found via ADL, they must be #included before they're used, which requires
// this header to be included before apparently independent other headers.
//
// For example, base/logging.h defines various template functions to implement
// CHECK_EQ(x, y) and stream x and y into the log in the event the check fails.
// It does so via the function template MakeCheckOpValueString:
// template<class T>
// void MakeCheckOpValueString(strstream* ss, const T& v) {
// (*ss) << v;
// }
// Because 'glog/logging.h' is included before 'glog/stl_logging.h',
// subsequent CHECK_EQ(v1, v2) for vector<...> typed variable v1 and v2 can only
// find these operator definitions via ADL.
//
// Even this solution has problems -- it may pull unintended operators into the
// namespace as well, allowing them to also be found via ADL, and creating code
// that only works with a particular order of includes. Long term, we need to
// move all of the *definitions* into namespace std, bet we need to ensure no
// one references them first. This lets us take that step. We cannot define them
// in both because that would create ambiguous overloads when both are found.
namespace std { using ::operator<<; }
#endif // UTIL_GTL_STL_LOGGING_INL_H_

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// Copyright (c) 1999, 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Ray Sidney and many others
//
// Defines the VLOG_IS_ON macro that controls the variable-verbosity
// conditional logging.
//
// It's used by VLOG and VLOG_IF in logging.h
// and by RAW_VLOG in raw_logging.h to trigger the logging.
//
// It can also be used directly e.g. like this:
// if (VLOG_IS_ON(2)) {
// // do some logging preparation and logging
// // that can't be accomplished e.g. via just VLOG(2) << ...;
// }
//
// The truth value that VLOG_IS_ON(level) returns is determined by
// the three verbosity level flags:
// --v=<n> Gives the default maximal active V-logging level;
// 0 is the default.
// Normally positive values are used for V-logging levels.
// --vmodule=<str> Gives the per-module maximal V-logging levels to override
// the value given by --v.
// E.g. "my_module=2,foo*=3" would change the logging level
// for all code in source files "my_module.*" and "foo*.*"
// ("-inl" suffixes are also disregarded for this matching).
//
// SetVLOGLevel helper function is provided to do limited dynamic control over
// V-logging by overriding the per-module settings given via --vmodule flag.
//
// CAVEAT: --vmodule functionality is not available in non gcc compilers.
//
#ifndef BASE_VLOG_IS_ON_H_
#define BASE_VLOG_IS_ON_H_
#include "glog/log_severity.h"
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
#if defined(__GNUC__)
// We emit an anonymous static int* variable at every VLOG_IS_ON(n) site.
// (Normally) the first time every VLOG_IS_ON(n) site is hit,
// we determine what variable will dynamically control logging at this site:
// it's either FLAGS_v or an appropriate internal variable
// matching the current source file that represents results of
// parsing of --vmodule flag and/or SetVLOGLevel calls.
#define VLOG_IS_ON(verboselevel) \
__extension__ \
({ static google::int32* vlocal__ = &google::kLogSiteUninitialized; \
google::int32 verbose_level__ = (verboselevel); \
(*vlocal__ >= verbose_level__) && \
((vlocal__ != &google::kLogSiteUninitialized) || \
(google::InitVLOG3__(&vlocal__, &FLAGS_v, \
__FILE__, verbose_level__))); })
#else
// GNU extensions not available, so we do not support --vmodule.
// Dynamic value of FLAGS_v always controls the logging level.
#define VLOG_IS_ON(verboselevel) (FLAGS_v >= (verboselevel))
#endif
// Set VLOG(_IS_ON) level for module_pattern to log_level.
// This lets us dynamically control what is normally set by the --vmodule flag.
// Returns the level that previously applied to module_pattern.
// NOTE: To change the log level for VLOG(_IS_ON) sites
// that have already executed after/during InitGoogleLogging,
// one needs to supply the exact --vmodule pattern that applied to them.
// (If no --vmodule pattern applied to them
// the value of FLAGS_v will continue to control them.)
extern GOOGLE_GLOG_DLL_DECL int SetVLOGLevel(const char* module_pattern,
int log_level);
// Various declarations needed for VLOG_IS_ON above: =========================
// Special value used to indicate that a VLOG_IS_ON site has not been
// initialized. We make this a large value, so the common-case check
// of "*vlocal__ >= verbose_level__" in VLOG_IS_ON definition
// passes in such cases and InitVLOG3__ is then triggered.
extern google::int32 kLogSiteUninitialized;
// Helper routine which determines the logging info for a particalur VLOG site.
// site_flag is the address of the site-local pointer to the controlling
// verbosity level
// site_default is the default to use for *site_flag
// fname is the current source file name
// verbose_level is the argument to VLOG_IS_ON
// We will return the return value for VLOG_IS_ON
// and if possible set *site_flag appropriately.
extern GOOGLE_GLOG_DLL_DECL bool InitVLOG3__(
google::int32** site_flag,
google::int32* site_default,
const char* fname,
google::int32 verbose_level);
#endif // BASE_VLOG_IS_ON_H_

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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// This file is a compatibility layer that defines Google's version of
// command line flags that are used for configuration.
//
// We put flags into their own namespace. It is purposefully
// named in an opaque way that people should have trouble typing
// directly. The idea is that DEFINE puts the flag in the weird
// namespace, and DECLARE imports the flag from there into the
// current namespace. The net result is to force people to use
// DECLARE to get access to a flag, rather than saying
// extern bool FLAGS_logtostderr;
// or some such instead. We want this so we can put extra
// functionality (like sanity-checking) in DECLARE if we want,
// and make sure it is picked up everywhere.
//
// We also put the type of the variable in the namespace, so that
// people can't DECLARE_int32 something that they DEFINE_bool'd
// elsewhere.
#ifndef BASE_COMMANDLINEFLAGS_H__
#define BASE_COMMANDLINEFLAGS_H__
#include "config.h"
#include <string>
#include <string.h> // for memchr
#include <stdlib.h> // for getenv
#ifdef HAVE_LIB_GFLAGS
#include <gflags/gflags.h>
#else
#include "glog/logging.h"
#define DECLARE_VARIABLE(type, shorttype, name, tn) \
namespace fL##shorttype { \
extern GOOGLE_GLOG_DLL_DECL type FLAGS_##name; \
} \
using fL##shorttype::FLAGS_##name
#define DEFINE_VARIABLE(type, shorttype, name, value, meaning, tn) \
namespace fL##shorttype { \
GOOGLE_GLOG_DLL_DECL type FLAGS_##name(value); \
char FLAGS_no##name; \
} \
using fL##shorttype::FLAGS_##name
// bool specialization
#define DECLARE_bool(name) \
DECLARE_VARIABLE(bool, B, name, bool)
#define DEFINE_bool(name, value, meaning) \
DEFINE_VARIABLE(bool, B, name, value, meaning, bool)
// int32 specialization
#define DECLARE_int32(name) \
DECLARE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, int32)
#define DEFINE_int32(name, value, meaning) \
DEFINE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, value, meaning, int32)
// Special case for string, because we have to specify the namespace
// std::string, which doesn't play nicely with our FLAG__namespace hackery.
#define DECLARE_string(name) \
namespace fLS { \
extern GOOGLE_GLOG_DLL_DECL std::string& FLAGS_##name; \
} \
using fLS::FLAGS_##name
#define DEFINE_string(name, value, meaning) \
namespace fLS { \
std::string FLAGS_##name##_buf(value); \
GOOGLE_GLOG_DLL_DECL std::string& FLAGS_##name = FLAGS_##name##_buf; \
char FLAGS_no##name; \
} \
using fLS::FLAGS_##name
#endif // HAVE_LIB_GFLAGS
// Define GLOG_DEFINE_* using DEFINE_* . By using these macros, we
// have GLOG_* environ variables even if we have gflags installed.
//
// If both an environment variable and a flag are specified, the value
// specified by a flag wins. E.g., if GLOG_v=0 and --v=1, the
// verbosity will be 1, not 0.
#define GLOG_DEFINE_bool(name, value, meaning) \
DEFINE_bool(name, EnvToBool("GLOG_" #name, value), meaning)
#define GLOG_DEFINE_int32(name, value, meaning) \
DEFINE_int32(name, EnvToInt("GLOG_" #name, value), meaning)
#define GLOG_DEFINE_string(name, value, meaning) \
DEFINE_string(name, EnvToString("GLOG_" #name, value), meaning)
// These macros (could be functions, but I don't want to bother with a .cc
// file), make it easier to initialize flags from the environment.
#define EnvToString(envname, dflt) \
(!getenv(envname) ? (dflt) : getenv(envname))
#define EnvToBool(envname, dflt) \
(!getenv(envname) ? (dflt) : memchr("tTyY1\0", getenv(envname)[0], 6) != NULL)
#define EnvToInt(envname, dflt) \
(!getenv(envname) ? (dflt) : strtol(getenv(envname), NULL, 10))
#endif // BASE_COMMANDLINEFLAGS_H__

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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// Author: Jacob Hoffman-Andrews
#ifndef _GOOGLEINIT_H
#define _GOOGLEINIT_H
class GoogleInitializer {
public:
typedef void (*void_function)(void);
GoogleInitializer(const char*, void_function f) {
f();
}
};
#define REGISTER_MODULE_INITIALIZER(name, body) \
namespace { \
static void google_init_module_##name () { body; } \
GoogleInitializer google_initializer_module_##name(#name, \
google_init_module_##name); \
}
#endif /* _GOOGLEINIT_H */

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// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---
// Author: Craig Silverstein.
//
// A simple mutex wrapper, supporting locks and read-write locks.
// You should assume the locks are *not* re-entrant.
//
// To use: you should define the following macros in your configure.ac:
// ACX_PTHREAD
// AC_RWLOCK
// The latter is defined in ../autoconf.
//
// This class is meant to be internal-only and should be wrapped by an
// internal namespace. Before you use this module, please give the
// name of your internal namespace for this module. Or, if you want
// to expose it, you'll want to move it to the Google namespace. We
// cannot put this class in global namespace because there can be some
// problems when we have multiple versions of Mutex in each shared object.
//
// NOTE: by default, we have #ifdef'ed out the TryLock() method.
// This is for two reasons:
// 1) TryLock() under Windows is a bit annoying (it requires a
// #define to be defined very early).
// 2) TryLock() is broken for NO_THREADS mode, at least in NDEBUG
// mode.
// If you need TryLock(), and either these two caveats are not a
// problem for you, or you're willing to work around them, then
// feel free to #define GMUTEX_TRYLOCK, or to remove the #ifdefs
// in the code below.
//
// CYGWIN NOTE: Cygwin support for rwlock seems to be buggy:
// http://www.cygwin.com/ml/cygwin/2008-12/msg00017.html
// Because of that, we might as well use windows locks for
// cygwin. They seem to be more reliable than the cygwin pthreads layer.
//
// TRICKY IMPLEMENTATION NOTE:
// This class is designed to be safe to use during
// dynamic-initialization -- that is, by global constructors that are
// run before main() starts. The issue in this case is that
// dynamic-initialization happens in an unpredictable order, and it
// could be that someone else's dynamic initializer could call a
// function that tries to acquire this mutex -- but that all happens
// before this mutex's constructor has run. (This can happen even if
// the mutex and the function that uses the mutex are in the same .cc
// file.) Basically, because Mutex does non-trivial work in its
// constructor, it's not, in the naive implementation, safe to use
// before dynamic initialization has run on it.
//
// The solution used here is to pair the actual mutex primitive with a
// bool that is set to true when the mutex is dynamically initialized.
// (Before that it's false.) Then we modify all mutex routines to
// look at the bool, and not try to lock/unlock until the bool makes
// it to true (which happens after the Mutex constructor has run.)
//
// This works because before main() starts -- particularly, during
// dynamic initialization -- there are no threads, so a) it's ok that
// the mutex operations are a no-op, since we don't need locking then
// anyway; and b) we can be quite confident our bool won't change
// state between a call to Lock() and a call to Unlock() (that would
// require a global constructor in one translation unit to call Lock()
// and another global constructor in another translation unit to call
// Unlock() later, which is pretty perverse).
//
// That said, it's tricky, and can conceivably fail; it's safest to
// avoid trying to acquire a mutex in a global constructor, if you
// can. One way it can fail is that a really smart compiler might
// initialize the bool to true at static-initialization time (too
// early) rather than at dynamic-initialization time. To discourage
// that, we set is_safe_ to true in code (not the constructor
// colon-initializer) and set it to true via a function that always
// evaluates to true, but that the compiler can't know always
// evaluates to true. This should be good enough.
#ifndef GOOGLE_MUTEX_H_
#define GOOGLE_MUTEX_H_
#include "config.h" // to figure out pthreads support
#if defined(NO_THREADS)
typedef int MutexType; // to keep a lock-count
#elif defined(_WIN32) || defined(__CYGWIN32__) || defined(__CYGWIN64__)
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN // We only need minimal includes
# endif
# ifdef GMUTEX_TRYLOCK
// We need Windows NT or later for TryEnterCriticalSection(). If you
// don't need that functionality, you can remove these _WIN32_WINNT
// lines, and change TryLock() to assert(0) or something.
# ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0400
# endif
# endif
// To avoid macro definition of ERROR.
# ifndef NOGDI
# define NOGDI
# endif
// To avoid macro definition of min/max.
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
typedef CRITICAL_SECTION MutexType;
#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
// Needed for pthread_rwlock_*. If it causes problems, you could take it
// out, but then you'd have to unset HAVE_RWLOCK (at least on linux -- it
// *does* cause problems for FreeBSD, or MacOSX, but isn't needed
// for locking there.)
# ifdef __linux__
# ifndef _XOPEN_SOURCE // Some other header might have already set it for us.
# define _XOPEN_SOURCE 500 // may be needed to get the rwlock calls
# endif
# endif
# include <pthread.h>
typedef pthread_rwlock_t MutexType;
#elif defined(HAVE_PTHREAD)
# include <pthread.h>
typedef pthread_mutex_t MutexType;
#else
# error Need to implement mutex.h for your architecture, or #define NO_THREADS
#endif
// We need to include these header files after defining _XOPEN_SOURCE
// as they may define the _XOPEN_SOURCE macro.
#include <assert.h>
#include <stdlib.h> // for abort()
#define MUTEX_NAMESPACE glog_internal_namespace_
namespace MUTEX_NAMESPACE {
class Mutex {
public:
// Create a Mutex that is not held by anybody. This constructor is
// typically used for Mutexes allocated on the heap or the stack.
// See below for a recommendation for constructing global Mutex
// objects.
inline Mutex();
// Destructor
inline ~Mutex();
inline void Lock(); // Block if needed until free then acquire exclusively
inline void Unlock(); // Release a lock acquired via Lock()
#ifdef GMUTEX_TRYLOCK
inline bool TryLock(); // If free, Lock() and return true, else return false
#endif
// Note that on systems that don't support read-write locks, these may
// be implemented as synonyms to Lock() and Unlock(). So you can use
// these for efficiency, but don't use them anyplace where being able
// to do shared reads is necessary to avoid deadlock.
inline void ReaderLock(); // Block until free or shared then acquire a share
inline void ReaderUnlock(); // Release a read share of this Mutex
inline void WriterLock() { Lock(); } // Acquire an exclusive lock
inline void WriterUnlock() { Unlock(); } // Release a lock from WriterLock()
// TODO(hamaji): Do nothing, implement correctly.
inline void AssertHeld() {}
private:
MutexType mutex_;
// We want to make sure that the compiler sets is_safe_ to true only
// when we tell it to, and never makes assumptions is_safe_ is
// always true. volatile is the most reliable way to do that.
volatile bool is_safe_;
inline void SetIsSafe() { is_safe_ = true; }
// Catch the error of writing Mutex when intending MutexLock.
Mutex(Mutex* /*ignored*/) {}
// Disallow "evil" constructors
Mutex(const Mutex&);
void operator=(const Mutex&);
};
// Now the implementation of Mutex for various systems
#if defined(NO_THREADS)
// When we don't have threads, we can be either reading or writing,
// but not both. We can have lots of readers at once (in no-threads
// mode, that's most likely to happen in recursive function calls),
// but only one writer. We represent this by having mutex_ be -1 when
// writing and a number > 0 when reading (and 0 when no lock is held).
//
// In debug mode, we assert these invariants, while in non-debug mode
// we do nothing, for efficiency. That's why everything is in an
// assert.
Mutex::Mutex() : mutex_(0) { }
Mutex::~Mutex() { assert(mutex_ == 0); }
void Mutex::Lock() { assert(--mutex_ == -1); }
void Mutex::Unlock() { assert(mutex_++ == -1); }
#ifdef GMUTEX_TRYLOCK
bool Mutex::TryLock() { if (mutex_) return false; Lock(); return true; }
#endif
void Mutex::ReaderLock() { assert(++mutex_ > 0); }
void Mutex::ReaderUnlock() { assert(mutex_-- > 0); }
#elif defined(_WIN32) || defined(__CYGWIN32__) || defined(__CYGWIN64__)
Mutex::Mutex() { InitializeCriticalSection(&mutex_); SetIsSafe(); }
Mutex::~Mutex() { DeleteCriticalSection(&mutex_); }
void Mutex::Lock() { if (is_safe_) EnterCriticalSection(&mutex_); }
void Mutex::Unlock() { if (is_safe_) LeaveCriticalSection(&mutex_); }
#ifdef GMUTEX_TRYLOCK
bool Mutex::TryLock() { return is_safe_ ?
TryEnterCriticalSection(&mutex_) != 0 : true; }
#endif
void Mutex::ReaderLock() { Lock(); } // we don't have read-write locks
void Mutex::ReaderUnlock() { Unlock(); }
#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
#define SAFE_PTHREAD(fncall) do { /* run fncall if is_safe_ is true */ \
if (is_safe_ && fncall(&mutex_) != 0) abort(); \
} while (0)
Mutex::Mutex() {
SetIsSafe();
if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort();
}
Mutex::~Mutex() { SAFE_PTHREAD(pthread_rwlock_destroy); }
void Mutex::Lock() { SAFE_PTHREAD(pthread_rwlock_wrlock); }
void Mutex::Unlock() { SAFE_PTHREAD(pthread_rwlock_unlock); }
#ifdef GMUTEX_TRYLOCK
bool Mutex::TryLock() { return is_safe_ ?
pthread_rwlock_trywrlock(&mutex_) == 0 :
true; }
#endif
void Mutex::ReaderLock() { SAFE_PTHREAD(pthread_rwlock_rdlock); }
void Mutex::ReaderUnlock() { SAFE_PTHREAD(pthread_rwlock_unlock); }
#undef SAFE_PTHREAD
#elif defined(HAVE_PTHREAD)
#define SAFE_PTHREAD(fncall) do { /* run fncall if is_safe_ is true */ \
if (is_safe_ && fncall(&mutex_) != 0) abort(); \
} while (0)
Mutex::Mutex() {
SetIsSafe();
if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort();
}
Mutex::~Mutex() { SAFE_PTHREAD(pthread_mutex_destroy); }
void Mutex::Lock() { SAFE_PTHREAD(pthread_mutex_lock); }
void Mutex::Unlock() { SAFE_PTHREAD(pthread_mutex_unlock); }
#ifdef GMUTEX_TRYLOCK
bool Mutex::TryLock() { return is_safe_ ?
pthread_mutex_trylock(&mutex_) == 0 : true; }
#endif
void Mutex::ReaderLock() { Lock(); }
void Mutex::ReaderUnlock() { Unlock(); }
#undef SAFE_PTHREAD
#endif
// --------------------------------------------------------------------------
// Some helper classes
// MutexLock(mu) acquires mu when constructed and releases it when destroyed.
class MutexLock {
public:
explicit MutexLock(Mutex *mu) : mu_(mu) { mu_->Lock(); }
~MutexLock() { mu_->Unlock(); }
private:
Mutex * const mu_;
// Disallow "evil" constructors
MutexLock(const MutexLock&);
void operator=(const MutexLock&);
};
// ReaderMutexLock and WriterMutexLock do the same, for rwlocks
class ReaderMutexLock {
public:
explicit ReaderMutexLock(Mutex *mu) : mu_(mu) { mu_->ReaderLock(); }
~ReaderMutexLock() { mu_->ReaderUnlock(); }
private:
Mutex * const mu_;
// Disallow "evil" constructors
ReaderMutexLock(const ReaderMutexLock&);
void operator=(const ReaderMutexLock&);
};
class WriterMutexLock {
public:
explicit WriterMutexLock(Mutex *mu) : mu_(mu) { mu_->WriterLock(); }
~WriterMutexLock() { mu_->WriterUnlock(); }
private:
Mutex * const mu_;
// Disallow "evil" constructors
WriterMutexLock(const WriterMutexLock&);
void operator=(const WriterMutexLock&);
};
// Catch bug where variable name is omitted, e.g. MutexLock (&mu);
#define MutexLock(x) COMPILE_ASSERT(0, mutex_lock_decl_missing_var_name)
#define ReaderMutexLock(x) COMPILE_ASSERT(0, rmutex_lock_decl_missing_var_name)
#define WriterMutexLock(x) COMPILE_ASSERT(0, wmutex_lock_decl_missing_var_name)
} // namespace MUTEX_NAMESPACE
using namespace MUTEX_NAMESPACE;
#undef MUTEX_NAMESPACE
#endif /* #define GOOGLE_MUTEX_H__ */

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#if defined(__APPLE__)
#include "config_mac.h"
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include "config_freebsd.h"
#elif defined(__NetBSD__)
#include "config_netbsd.h"
#elif defined(__OpenBSD__)
#include "config_openbsd.h"
#elif defined(__MINGW32__)
#include "windows/config.h"
#elif defined(__linux__)
#include "config_linux.h"
#elif defined(_MSC_VER)
#include "windows/config.h"
#elif defined(__GNU__)
#include "config_hurd.h"
#elif defined(__HAIKU__)
#include "config_haiku.h"
#endif

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
/* #undef HAVE_DLADDR */
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
/* #undef HAVE_EXECINFO_H */
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
#define HAVE_LIBPTHREAD
/* Define to 1 if you have the <libunwind.h> header file. */
/* #undef HAVE_LIBUNWIND_H */
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
#define HAVE_RWLOCK 1
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
#define HAVE_SIGALTSTACK 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
/* #undef HAVE_SYSCALL_H */
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
#define HAVE_SYS_UCONTEXT_H
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
#define HAVE_UCONTEXT_H
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
/* #undef PC_FROM_UCONTEXT */
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL
/* isn't getting defined by configure script when clang compilers are used
and cuases compilation errors in stactrace/unwind modules */
#ifdef __clang__
# define NO_FRAME_POINTER
#endif

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/* src/config.h. Generated from config.h.in by configure. */
/* src/config.h.in. Generated from configure.ac by autoheader. */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
#define HAVE_DLADDR 1
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1
/* Define to 1 if you have the <execinfo.h> header file. */
#undef HAVE_EXECINFO_H
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL 1
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H 1
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
#define HAVE_LIBPTHREAD 1
/* Define to 1 if you have the <libunwind.h> header file. */
/* #undef HAVE_LIBUNWIND_H */
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS 1
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES 1
/* Define if you have the 'pread' function */
#define HAVE_PREAD 1
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD 1
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H 1
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE 1
/* define if the compiler implements pthread_rwlock_* */
#define HAVE_RWLOCK 1
/* Define if you have the `sigaltstack' function */
#define HAVE_SIGALTSTACK 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the <syscall.h> header file. */
/* #undef HAVE_SYSCALL_H */
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/syscall.h> header file. */
/* #undef HAVE_SYS_SYSCALL_H */
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
/* #undef HAVE_SYS_UCONTEXT_H */
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H 1
/* Define to 1 if you have the <ucontext.h> header file. */
/* #undef HAVE_UCONTEXT_H */
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR 1
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__ 1
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
/* #undef HAVE___SYNC_VAL_COMPARE_AND_SWAP */
/* Name of package */
#define PACKAGE "glog"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "opensource@google.com"
/* Define to the full name of this package. */
#define PACKAGE_NAME "glog"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "glog 0.3.4"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "glog"
/* Define to the version of this package. */
#define PACKAGE_VERSION "0.3.4"
/* How to access the PC from a struct ucontext */
/* #define PC_FROM_UCONTEXT uc_mcontext.gregs[REG_RIP] */
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
/* #undef STDC_HEADERS */
#define STDC_HEADERS 1
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
#define VERSION "0.3.4"
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
/* isn't getting defined by configure script when clang compilers are used
and cuases compilation errors in stactrace/unwind modules */
#ifdef __clang__
# define NO_FRAME_POINTER
#endif

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
/* #undef HAVE_DLADDR */
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
#define HAVE_EXECINFO_H
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
/* #undef HAVE_LIBPTHREAD */
/* Define to 1 if you have the <libunwind.h> header file. */
#define HAVE_LIBUNWIND_H
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
/* #undef HAVE_RWLOCK */
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
/* #undef HAVE_SIGALTSTACK */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
#define HAVE_SYSCALL_H
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
/* #undef HAVE_SYS_UCONTEXT_H */
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
#define HAVE_UCONTEXT_H
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
#if defined(_M_X64) || defined(__amd64__) || defined(__x86_64__)
#define PC_FROM_UCONTEXT uc_mcontext.gregs[REG_RIP]
#elif defined(_M_IX86) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
#define PC_FROM_UCONTEXT uc_mcontext.gregs[REG_EIP]
#else
#undef PC_FROM_UCONTEXT
#endif
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 4
/* Define to 1 if you have the ANSI C header files. */
/* #undef STDC_HEADERS */
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
/* #undef HAVE_DLADDR */
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
#define HAVE_EXECINFO_H
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
/* #undef HAVE_LIBPTHREAD */
/* Define to 1 if you have the <libunwind.h> header file. */
#define HAVE_LIBUNWIND_H
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
/* #undef HAVE_RWLOCK */
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
/* #undef HAVE_SIGALTSTACK */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
#define HAVE_SYSCALL_H
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
/* #undef HAVE_SYS_UCONTEXT_H */
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
#define HAVE_UCONTEXT_H
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
#if defined(_M_X64) || defined(__amd64__) || defined(__x86_64__)
#define PC_FROM_UCONTEXT uc_mcontext.gregs[REG_RIP]
#elif defined(_M_IX86) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
#define PC_FROM_UCONTEXT uc_mcontext.gregs[REG_EIP]
#else
#undef PC_FROM_UCONTEXT
#endif
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
/* #undef STDC_HEADERS */
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
#define HAVE_DLADDR
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
#define HAVE_EXECINFO_H
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
/* #undef HAVE_LIBPTHREAD */
/* Define to 1 if you have the <libunwind.h> header file. */
#define HAVE_LIBUNWIND_H
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
#define HAVE_RWLOCK
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
/* #undef HAVE_SIGALTSTACK */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
/* #undef HAVE_SYSCALL_H */
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
/* #undef HAVE_SYS_UCONTEXT_H */
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
/* #undef HAVE_UCONTEXT_H */
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
/* #undef PC_FROM_UCONTEXT */
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
/* #undef STDC_HEADERS */
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
/* #undef HAVE_DLADDR */
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
/* #undef HAVE_EXECINFO_H */
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
#define HAVE_LIBPTHREAD
/* Define to 1 if you have the <libunwind.h> header file. */
/* #undef HAVE_LIBUNWIND_H */
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
#define HAVE_RWLOCK 1
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
#define HAVE_SIGALTSTACK 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
/* #undef HAVE_SYSCALL_H */
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
#define HAVE_SYS_UCONTEXT_H
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
#define HAVE_UCONTEXT_H
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
/* #undef PC_FROM_UCONTEXT */
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL
/* isn't getting defined by configure script when clang compilers are used
and cuases compilation errors in stactrace/unwind modules */
#ifdef __clang__
# define NO_FRAME_POINTER
#endif

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/* define if glog doesn't use RTTI */
/* #undef DISABLE_RTTI */
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Define if you have the `dladdr' function */
/* #undef HAVE_DLADDR */
/* Define if you have the `snprintf' function */
#define HAVE_SNPRINTF
/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H
/* Define to 1 if you have the <execinfo.h> header file. */
/* #undef HAVE_EXECINFO_H */
/* Define if you have the `fcntl' function */
#define HAVE_FCNTL
/* Define to 1 if you have the <glob.h> header file. */
#define HAVE_GLOB_H
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the `pthread' library (-lpthread). */
#define HAVE_LIBPTHREAD
/* Define to 1 if you have the <libunwind.h> header file. */
/* #undef HAVE_LIBUNWIND_H */
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS
/* define if you have google gmock library */
/* #undef HAVE_LIB_GMOCK */
/* define if you have google gtest library */
/* #undef HAVE_LIB_GTEST */
/* define if you have libunwind */
/* #undef HAVE_LIB_UNWIND */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H
/* define to disable multithreading support. */
/* #undef NO_THREADS */
/* define if the compiler implements namespaces */
#define HAVE_NAMESPACES
/* Define if you have the 'pread' function */
#define HAVE_PREAD
/* Define if you have POSIX threads libraries and header files. */
#define HAVE_PTHREAD
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H
/* Define if you have the 'pwrite' function */
#define HAVE_PWRITE
/* define if the compiler implements pthread_rwlock_* */
#define HAVE_RWLOCK 1
/* Define if you have the 'sigaction' function */
#define HAVE_SIGACTION
/* Define if you have the `sigaltstack' function */
#define HAVE_SIGALTSTACK 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H
/* Define to 1 if you have the <syscall.h> header file. */
/* #undef HAVE_SYSCALL_H */
/* Define to 1 if you have the <syslog.h> header file. */
#define HAVE_SYSLOG_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H
/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/ucontext.h> header file. */
/* #undef HAVE_SYS_UCONTEXT_H */
/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H
/* Define to 1 if you have the <ucontext.h> header file. */
/* #undef HAVE_UCONTEXT_H */
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the <unwind.h> header file. */
#define HAVE_UNWIND_H 1
/* define if the compiler supports using expression for operator */
#define HAVE_USING_OPERATOR
/* define if your compiler has __attribute__ */
#define HAVE___ATTRIBUTE__
/* define if your compiler has __builtin_expect */
#define HAVE___BUILTIN_EXPECT 1
/* define if your compiler has __sync_val_compare_and_swap */
#define HAVE___SYNC_VAL_COMPARE_AND_SWAP
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
/* #undef PACKAGE */
/* Define to the address where bug reports for this package should be sent. */
/* #undef PACKAGE_BUGREPORT */
/* Define to the full name of this package. */
/* #undef PACKAGE_NAME */
/* Define to the full name and version of this package. */
/* #undef PACKAGE_STRING */
/* Define to the one symbol short name of this package. */
/* #undef PACKAGE_TARNAME */
/* Define to the home page for this package. */
/* #undef PACKAGE_URL */
/* Define to the version of this package. */
/* #undef PACKAGE_VERSION */
/* How to access the PC from a struct ucontext */
/* #undef PC_FROM_UCONTEXT */
/* Define to necessary symbol if this constant uses a non-standard name on
your system. */
/* #undef PTHREAD_CREATE_JOINABLE */
/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* location of source code */
#define TEST_SRC_DIR "."
/* Version number of package */
/* #undef VERSION */
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#define GOOGLE_GLOG_DLL_DECL
/* isn't getting defined by configure script when clang compilers are used
and cuases compilation errors in stactrace/unwind modules */
#ifdef __clang__
# define NO_FRAME_POINTER
#endif

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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Satoru Takabayashi
//
// An async-signal-safe and thread-safe demangler for Itanium C++ ABI
// (aka G++ V3 ABI).
// The demangler is implemented to be used in async signal handlers to
// symbolize stack traces. We cannot use libstdc++'s
// abi::__cxa_demangle() in such signal handlers since it's not async
// signal safe (it uses malloc() internally).
//
// Note that this demangler doesn't support full demangling. More
// specifically, it doesn't print types of function parameters and
// types of template arguments. It just skips them. However, it's
// still very useful to extract basic information such as class,
// function, constructor, destructor, and operator names.
//
// See the implementation note in demangle.cc if you are interested.
//
// Example:
//
// | Mangled Name | The Demangler | abi::__cxa_demangle()
// |---------------|---------------|-----------------------
// | _Z1fv | f() | f()
// | _Z1fi | f() | f(int)
// | _Z3foo3bar | foo() | foo(bar)
// | _Z1fIiEvi | f<>() | void f<int>(int)
// | _ZN1N1fE | N::f | N::f
// | _ZN3Foo3BarEv | Foo::Bar() | Foo::Bar()
// | _Zrm1XS_" | operator%() | operator%(X, X)
// | _ZN3FooC1Ev | Foo::Foo() | Foo::Foo()
// | _Z1fSs | f() | f(std::basic_string<char,
// | | | std::char_traits<char>,
// | | | std::allocator<char> >)
//
// See the unit test for more examples.
//
// Note: we might want to write demanglers for ABIs other than Itanium
// C++ ABI in the future.
//
#ifndef BASE_DEMANGLE_H_
#define BASE_DEMANGLE_H_
#include "config.h"
#include "glog/logging.h"
_START_GOOGLE_NAMESPACE_
// Demangle "mangled". On success, return true and write the
// demangled symbol name to "out". Otherwise, return false.
// "out" is modified even if demangling is unsuccessful.
bool GOOGLE_GLOG_DLL_DECL Demangle(const char *mangled, char *out, int out_size);
_END_GOOGLE_NAMESPACE_
#endif // BASE_DEMANGLE_H_

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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Maxim Lifantsev
//
// logging_unittest.cc covers the functionality herein
#include "utilities.h"
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h> // for close() and write()
#endif
#include <fcntl.h> // for open()
#include <time.h>
#include "config.h"
#include "glog/logging.h" // To pick up flag settings etc.
#include "glog/raw_logging.h"
#include "base/commandlineflags.h"
#ifdef HAVE_STACKTRACE
# include "stacktrace.h"
#endif
#if defined(HAVE_SYSCALL_H)
#include <syscall.h> // for syscall()
#elif defined(HAVE_SYS_SYSCALL_H)
#include <sys/syscall.h> // for syscall()
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if (defined(HAVE_SYSCALL_H) || defined(HAVE_SYS_SYSCALL_H)) && \
(!(defined OS_MACOSX) && !(defined OS_OPENBSD))
# define safe_write(fd, s, len) syscall(SYS_write, fd, s, len)
#else
// Not so safe, but what can you do?
# define safe_write(fd, s, len) write(fd, s, len)
#endif
_START_GOOGLE_NAMESPACE_
// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths
// that invoke malloc() and getenv() that might acquire some locks.
// If this becomes a problem we should reimplement a subset of vsnprintf
// that does not need locks and malloc.
// Helper for RawLog__ below.
// *DoRawLog writes to *buf of *size and move them past the written portion.
// It returns true iff there was no overflow or error.
static bool DoRawLog(char** buf, int* size, const char* format, ...) {
va_list ap;
va_start(ap, format);
int n = vsnprintf(*buf, *size, format, ap);
va_end(ap);
if (n < 0 || n > *size) return false;
*size -= n;
*buf += n;
return true;
}
// Helper for RawLog__ below.
inline static bool VADoRawLog(char** buf, int* size,
const char* format, va_list ap) {
int n = vsnprintf(*buf, *size, format, ap);
if (n < 0 || n > *size) return false;
*size -= n;
*buf += n;
return true;
}
static const int kLogBufSize = 3000;
static bool crashed = false;
static CrashReason crash_reason;
static char crash_buf[kLogBufSize + 1] = { 0 }; // Will end in '\0'
void RawLog__(LogSeverity severity, const char* file, int line,
const char* format, ...) {
if (!(FLAGS_logtostderr || severity >= FLAGS_stderrthreshold ||
FLAGS_alsologtostderr || !IsGoogleLoggingInitialized())) {
return; // this stderr log message is suppressed
}
// can't call localtime_r here: it can allocate
char buffer[kLogBufSize];
char* buf = buffer;
int size = sizeof(buffer);
// NOTE: this format should match the specification in base/logging.h
DoRawLog(&buf, &size, "%c0000 00:00:00.000000 %5u %s:%d] RAW: ",
LogSeverityNames[severity][0],
static_cast<unsigned int>(GetTID()),
const_basename(const_cast<char *>(file)), line);
// Record the position and size of the buffer after the prefix
const char* msg_start = buf;
const int msg_size = size;
va_list ap;
va_start(ap, format);
bool no_chop = VADoRawLog(&buf, &size, format, ap);
va_end(ap);
if (no_chop) {
DoRawLog(&buf, &size, "\n");
} else {
DoRawLog(&buf, &size, "RAW_LOG ERROR: The Message was too long!\n");
}
// We make a raw syscall to write directly to the stderr file descriptor,
// avoiding FILE buffering (to avoid invoking malloc()), and bypassing
// libc (to side-step any libc interception).
// We write just once to avoid races with other invocations of RawLog__.
safe_write(STDERR_FILENO, buffer, strlen(buffer));
if (severity == GLOG_FATAL) {
if (!sync_val_compare_and_swap(&crashed, false, true)) {
crash_reason.filename = file;
crash_reason.line_number = line;
memcpy(crash_buf, msg_start, msg_size); // Don't include prefix
crash_reason.message = crash_buf;
#ifdef HAVE_STACKTRACE
crash_reason.depth =
GetStackTrace(crash_reason.stack, ARRAYSIZE(crash_reason.stack), 1);
#else
crash_reason.depth = 0;
#endif
SetCrashReason(&crash_reason);
}
LogMessage::Fail(); // abort()
}
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Satoru Takabayashi
//
// Implementation of InstallFailureSignalHandler().
#include "utilities.h"
#include "stacktrace.h"
#include "symbolize.h"
#include "glog/logging.h"
#include <signal.h>
#include <time.h>
#ifdef HAVE_UCONTEXT_H
# include <ucontext.h>
#endif
#ifdef HAVE_SYS_UCONTEXT_H
# include <sys/ucontext.h>
#endif
#include <algorithm>
_START_GOOGLE_NAMESPACE_
namespace {
// We'll install the failure signal handler for these signals. We could
// use strsignal() to get signal names, but we don't use it to avoid
// introducing yet another #ifdef complication.
//
// The list should be synced with the comment in signalhandler.h.
const struct {
int number;
const char *name;
} kFailureSignals[] = {
{ SIGSEGV, "SIGSEGV" },
{ SIGILL, "SIGILL" },
{ SIGFPE, "SIGFPE" },
{ SIGABRT, "SIGABRT" },
#if !defined(OS_WINDOWS)
{ SIGBUS, "SIGBUS" },
#endif
{ SIGTERM, "SIGTERM" },
};
static bool kFailureSignalHandlerInstalled = false;
// Returns the program counter from signal context, NULL if unknown.
void* GetPC(void* ucontext_in_void) {
#if (defined(HAVE_UCONTEXT_H) || defined(HAVE_SYS_UCONTEXT_H)) && defined(PC_FROM_UCONTEXT)
if (ucontext_in_void != NULL) {
ucontext_t *context = reinterpret_cast<ucontext_t *>(ucontext_in_void);
return (void*)context->PC_FROM_UCONTEXT;
}
#endif
return NULL;
}
// The class is used for formatting error messages. We don't use printf()
// as it's not async signal safe.
class MinimalFormatter {
public:
MinimalFormatter(char *buffer, int size)
: buffer_(buffer),
cursor_(buffer),
end_(buffer + size) {
}
// Returns the number of bytes written in the buffer.
int num_bytes_written() const { return (int) (cursor_ - buffer_); }
// Appends string from "str" and updates the internal cursor.
void AppendString(const char* str) {
int i = 0;
while (str[i] != '\0' && cursor_ + i < end_) {
cursor_[i] = str[i];
++i;
}
cursor_ += i;
}
// Formats "number" in "radix" and updates the internal cursor.
// Lowercase letters are used for 'a' - 'z'.
void AppendUint64(uint64 number, int radix) {
int i = 0;
while (cursor_ + i < end_) {
const int tmp = number % radix;
number /= radix;
cursor_[i] = (tmp < 10 ? '0' + tmp : 'a' + tmp - 10);
++i;
if (number == 0) {
break;
}
}
// Reverse the bytes written.
std::reverse(cursor_, cursor_ + i);
cursor_ += i;
}
// Formats "number" as hexadecimal number, and updates the internal
// cursor. Padding will be added in front if needed.
void AppendHexWithPadding(uint64 number, int width) {
char* start = cursor_;
AppendString("0x");
AppendUint64(number, 16);
// Move to right and add padding in front if needed.
if (cursor_ < start + width) {
const int64 delta = start + width - cursor_;
std::copy(start, cursor_, start + delta);
std::fill(start, start + delta, ' ');
cursor_ = start + width;
}
}
private:
char *buffer_;
char *cursor_;
const char * const end_;
};
// Writes the given data with the size to the standard error.
void WriteToStderr(const char* data, int size) {
if (write(STDERR_FILENO, data, size) < 0) {
// Ignore errors.
}
}
// The writer function can be changed by InstallFailureWriter().
void (*g_failure_writer)(const char* data, int size) = WriteToStderr;
// Dumps time information. We don't dump human-readable time information
// as localtime() is not guaranteed to be async signal safe.
void DumpTimeInfo() {
time_t time_in_sec = time(NULL);
char buf[256]; // Big enough for time info.
MinimalFormatter formatter(buf, sizeof(buf));
formatter.AppendString("*** Aborted at ");
formatter.AppendUint64(time_in_sec, 10);
formatter.AppendString(" (unix time)");
formatter.AppendString(" try \"date -d @");
formatter.AppendUint64(time_in_sec, 10);
formatter.AppendString("\" if you are using GNU date ***\n");
g_failure_writer(buf, formatter.num_bytes_written());
}
// TOOD(hamaji): Use signal instead of sigaction?
#ifdef HAVE_SIGACTION
// Dumps information about the signal to STDERR.
void DumpSignalInfo(int signal_number, siginfo_t *siginfo) {
// Get the signal name.
const char* signal_name = NULL;
for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
if (signal_number == kFailureSignals[i].number) {
signal_name = kFailureSignals[i].name;
}
}
char buf[256]; // Big enough for signal info.
MinimalFormatter formatter(buf, sizeof(buf));
formatter.AppendString("*** ");
if (signal_name) {
formatter.AppendString(signal_name);
} else {
// Use the signal number if the name is unknown. The signal name
// should be known, but just in case.
formatter.AppendString("Signal ");
formatter.AppendUint64(signal_number, 10);
}
formatter.AppendString(" (@0x");
formatter.AppendUint64(reinterpret_cast<uintptr_t>(siginfo->si_addr), 16);
formatter.AppendString(")");
formatter.AppendString(" received by PID ");
formatter.AppendUint64(getpid(), 10);
formatter.AppendString(" (TID 0x");
// We assume pthread_t is an integral number or a pointer, rather
// than a complex struct. In some environments, pthread_self()
// returns an uint64 but in some other environments pthread_self()
// returns a pointer. Hence we use C-style cast here, rather than
// reinterpret/static_cast, to support both types of environments.
formatter.AppendUint64((uintptr_t)pthread_self(), 16);
formatter.AppendString(") ");
// Only linux has the PID of the signal sender in si_pid.
#ifdef OS_LINUX
formatter.AppendString("from PID ");
formatter.AppendUint64(siginfo->si_pid, 10);
formatter.AppendString("; ");
#endif
formatter.AppendString("stack trace: ***\n");
g_failure_writer(buf, formatter.num_bytes_written());
}
#endif // HAVE_SIGACTION
// Dumps information about the stack frame to STDERR.
void DumpStackFrameInfo(const char* prefix, void* pc) {
// Get the symbol name.
const char *symbol = "(unknown)";
char symbolized[1024]; // Big enough for a sane symbol.
// Symbolizes the previous address of pc because pc may be in the
// next function.
if (Symbolize(reinterpret_cast<char *>(pc) - 1,
symbolized, sizeof(symbolized))) {
symbol = symbolized;
}
char buf[1024]; // Big enough for stack frame info.
MinimalFormatter formatter(buf, sizeof(buf));
formatter.AppendString(prefix);
formatter.AppendString("@ ");
const int width = 2 * sizeof(void*) + 2; // + 2 for "0x".
formatter.AppendHexWithPadding(reinterpret_cast<uintptr_t>(pc), width);
formatter.AppendString(" ");
formatter.AppendString(symbol);
formatter.AppendString("\n");
g_failure_writer(buf, formatter.num_bytes_written());
}
// Invoke the default signal handler.
void InvokeDefaultSignalHandler(int signal_number) {
#ifdef HAVE_SIGACTION
struct sigaction sig_action;
memset(&sig_action, 0, sizeof(sig_action));
sigemptyset(&sig_action.sa_mask);
sig_action.sa_handler = SIG_DFL;
sigaction(signal_number, &sig_action, NULL);
kill(getpid(), signal_number);
#elif defined(OS_WINDOWS)
signal(signal_number, SIG_DFL);
raise(signal_number);
#endif
}
// This variable is used for protecting FailureSignalHandler() from
// dumping stuff while another thread is doing it. Our policy is to let
// the first thread dump stuff and let other threads wait.
// See also comments in FailureSignalHandler().
static pthread_t* g_entered_thread_id_pointer = NULL;
// Dumps signal and stack frame information, and invokes the default
// signal handler once our job is done.
#if defined(OS_WINDOWS)
void FailureSignalHandler(int signal_number)
#else
void FailureSignalHandler(int signal_number,
siginfo_t *signal_info,
void *ucontext)
#endif
{
// First check if we've already entered the function. We use an atomic
// compare and swap operation for platforms that support it. For other
// platforms, we use a naive method that could lead to a subtle race.
// We assume pthread_self() is async signal safe, though it's not
// officially guaranteed.
pthread_t my_thread_id = pthread_self();
// NOTE: We could simply use pthread_t rather than pthread_t* for this,
// if pthread_self() is guaranteed to return non-zero value for thread
// ids, but there is no such guarantee. We need to distinguish if the
// old value (value returned from __sync_val_compare_and_swap) is
// different from the original value (in this case NULL).
pthread_t* old_thread_id_pointer =
glog_internal_namespace_::sync_val_compare_and_swap(
&g_entered_thread_id_pointer,
static_cast<pthread_t*>(NULL),
&my_thread_id);
if (old_thread_id_pointer != NULL) {
// We've already entered the signal handler. What should we do?
if (pthread_equal(my_thread_id, *g_entered_thread_id_pointer)) {
// It looks the current thread is reentering the signal handler.
// Something must be going wrong (maybe we are reentering by another
// type of signal?). Kill ourself by the default signal handler.
InvokeDefaultSignalHandler(signal_number);
}
// Another thread is dumping stuff. Let's wait until that thread
// finishes the job and kills the process.
while (true) {
sleep(1);
}
}
// This is the first time we enter the signal handler. We are going to
// do some interesting stuff from here.
// TODO(satorux): We might want to set timeout here using alarm(), but
// mixing alarm() and sleep() can be a bad idea.
// First dump time info.
DumpTimeInfo();
#if !defined(OS_WINDOWS)
// Get the program counter from ucontext.
void *pc = GetPC(ucontext);
DumpStackFrameInfo("PC: ", pc);
#endif
#ifdef HAVE_STACKTRACE
// Get the stack traces.
void *stack[32];
// +1 to exclude this function.
const int depth = GetStackTrace(stack, ARRAYSIZE(stack), 1);
# ifdef HAVE_SIGACTION
DumpSignalInfo(signal_number, signal_info);
# endif
// Dump the stack traces.
for (int i = 0; i < depth; ++i) {
DumpStackFrameInfo(" ", stack[i]);
}
#endif
// *** TRANSITION ***
//
// BEFORE this point, all code must be async-termination-safe!
// (See WARNING above.)
//
// AFTER this point, we do unsafe things, like using LOG()!
// The process could be terminated or hung at any time. We try to
// do more useful things first and riskier things later.
// Flush the logs before we do anything in case 'anything'
// causes problems.
FlushLogFilesUnsafe(0);
// Kill ourself by the default signal handler.
InvokeDefaultSignalHandler(signal_number);
}
} // namespace
namespace glog_internal_namespace_ {
bool IsFailureSignalHandlerInstalled() {
#ifdef HAVE_SIGACTION
// TODO(andschwa): Return kFailureSignalHandlerInstalled?
struct sigaction sig_action;
memset(&sig_action, 0, sizeof(sig_action));
sigemptyset(&sig_action.sa_mask);
sigaction(SIGABRT, NULL, &sig_action);
if (sig_action.sa_sigaction == &FailureSignalHandler)
return true;
#elif defined(OS_WINDOWS)
return kFailureSignalHandlerInstalled;
#endif // HAVE_SIGACTION
return false;
}
} // namespace glog_internal_namespace_
void InstallFailureSignalHandler() {
#ifdef HAVE_SIGACTION
// Build the sigaction struct.
struct sigaction sig_action;
memset(&sig_action, 0, sizeof(sig_action));
sigemptyset(&sig_action.sa_mask);
sig_action.sa_flags |= SA_SIGINFO;
sig_action.sa_sigaction = &FailureSignalHandler;
for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
CHECK_ERR(sigaction(kFailureSignals[i].number, &sig_action, NULL));
}
kFailureSignalHandlerInstalled = true;
#elif defined(OS_WINDOWS)
for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
CHECK_NE(signal(kFailureSignals[i].number, &FailureSignalHandler),
SIG_ERR);
}
kFailureSignalHandlerInstalled = true;
#endif // HAVE_SIGACTION
}
void InstallFailureWriter(void (*writer)(const char* data, int size)) {
#if defined(HAVE_SIGACTION) || defined(OS_WINDOWS)
g_failure_writer = writer;
#endif // HAVE_SIGACTION
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2000 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Routines to extract the current stack trace. These functions are
// thread-safe.
#ifndef BASE_STACKTRACE_H_
#define BASE_STACKTRACE_H_
#include "config.h"
#include "glog/logging.h"
_START_GOOGLE_NAMESPACE_
// This is similar to the GetStackFrames routine, except that it returns
// the stack trace only, and not the stack frame sizes as well.
// Example:
// main() { foo(); }
// foo() { bar(); }
// bar() {
// void* result[10];
// int depth = GetStackFrames(result, 10, 1);
// }
//
// This produces:
// result[0] foo
// result[1] main
// .... ...
//
// "result" must not be NULL.
GOOGLE_GLOG_DLL_DECL int GetStackTrace(void** result, int max_depth, int skip_count);
_END_GOOGLE_NAMESPACE_
#endif // BASE_STACKTRACE_H_

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// Copyright (c) 2000 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Portable implementation - just use glibc
//
// Note: The glibc implementation may cause a call to malloc.
// This can cause a deadlock in HeapProfiler.
#include <execinfo.h>
#include <string.h>
#include "stacktrace.h"
_START_GOOGLE_NAMESPACE_
// If you change this function, also change GetStackFrames below.
int GetStackTrace(void** result, int max_depth, int skip_count) {
static const int kStackLength = 64;
void * stack[kStackLength];
int size;
size = backtrace(stack, kStackLength);
skip_count++; // we want to skip the current frame as well
int result_count = size - skip_count;
if (result_count < 0)
result_count = 0;
if (result_count > max_depth)
result_count = max_depth;
for (int i = 0; i < result_count; i++)
result[i] = stack[i + skip_count];
return result_count;
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2005 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Arun Sharma
//
// Produce stack trace using libunwind
#include "utilities.h"
extern "C" {
#define UNW_LOCAL_ONLY
#include <libunwind.h>
}
#include "glog/raw_logging.h"
#include "stacktrace.h"
_START_GOOGLE_NAMESPACE_
// Sometimes, we can try to get a stack trace from within a stack
// trace, because libunwind can call mmap (maybe indirectly via an
// internal mmap based memory allocator), and that mmap gets trapped
// and causes a stack-trace request. If were to try to honor that
// recursive request, we'd end up with infinite recursion or deadlock.
// Luckily, it's safe to ignore those subsequent traces. In such
// cases, we return 0 to indicate the situation.
static bool g_now_entering = false;
// If you change this function, also change GetStackFrames below.
int GetStackTrace(void** result, int max_depth, int skip_count) {
void *ip;
int n = 0;
unw_cursor_t cursor;
unw_context_t uc;
if (sync_val_compare_and_swap(&g_now_entering, false, true)) {
return 0;
}
unw_getcontext(&uc);
RAW_CHECK(unw_init_local(&cursor, &uc) >= 0, "unw_init_local failed");
skip_count++; // Do not include the "GetStackTrace" frame
while (n < max_depth) {
int ret = unw_get_reg(&cursor, UNW_REG_IP, (unw_word_t *) &ip);
if (ret < 0)
break;
if (skip_count > 0) {
skip_count--;
} else {
result[n++] = ip;
}
ret = unw_step(&cursor);
if (ret <= 0)
break;
}
g_now_entering = false;
return n;
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Craig Silverstein
//
// Produce stack trace. I'm guessing (hoping!) the code is much like
// for x86. For apple machines, at least, it seems to be; see
// http://developer.apple.com/documentation/mac/runtimehtml/RTArch-59.html
// http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
// Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882
#include <stdio.h>
#include <stdint.h> // for uintptr_t
#include "stacktrace.h"
_START_GOOGLE_NAMESPACE_
// Given a pointer to a stack frame, locate and return the calling
// stackframe, or return NULL if no stackframe can be found. Perform sanity
// checks (the strictness of which is controlled by the boolean parameter
// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
template<bool STRICT_UNWINDING>
static void **NextStackFrame(void **old_sp) {
void **new_sp = (void **) *old_sp;
// Check that the transition from frame pointer old_sp to frame
// pointer new_sp isn't clearly bogus
if (STRICT_UNWINDING) {
// With the stack growing downwards, older stack frame must be
// at a greater address that the current one.
if (new_sp <= old_sp) return NULL;
// Assume stack frames larger than 100,000 bytes are bogus.
if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
} else {
// In the non-strict mode, allow discontiguous stack frames.
// (alternate-signal-stacks for example).
if (new_sp == old_sp) return NULL;
// And allow frames upto about 1MB.
if ((new_sp > old_sp)
&& ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
}
if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
return new_sp;
}
// This ensures that GetStackTrace stes up the Link Register properly.
void StacktracePowerPCDummyFunction() __attribute__((noinline));
void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
// If you change this function, also change GetStackFrames below.
int GetStackTrace(void** result, int max_depth, int skip_count) {
void **sp;
// Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
// and Darwin 8.8.1 (Tiger) use as 1.38. This means we have to use a
// different asm syntax. I don't know quite the best way to discriminate
// systems using the old as from the new one; I've gone with __APPLE__.
#ifdef __APPLE__
__asm__ volatile ("mr %0,r1" : "=r" (sp));
#else
__asm__ volatile ("mr %0,1" : "=r" (sp));
#endif
// On PowerPC, the "Link Register" or "Link Record" (LR), is a stack
// entry that holds the return address of the subroutine call (what
// instruction we run after our function finishes). This is the
// same as the stack-pointer of our parent routine, which is what we
// want here. While the compiler will always(?) set up LR for
// subroutine calls, it may not for leaf functions (such as this one).
// This routine forces the compiler (at least gcc) to push it anyway.
StacktracePowerPCDummyFunction();
// The LR save area is used by the callee, so the top entry is bogus.
skip_count++;
int n = 0;
while (sp && n < max_depth) {
if (skip_count > 0) {
skip_count--;
} else {
// PowerPC has 3 main ABIs, which say where in the stack the
// Link Register is. For DARWIN and AIX (used by apple and
// linux ppc64), it's in sp[2]. For SYSV (used by linux ppc),
// it's in sp[1].
#if defined(_CALL_AIX) || defined(_CALL_DARWIN)
result[n++] = *(sp+2);
#elif defined(_CALL_SYSV)
result[n++] = *(sp+1);
#elif defined(__APPLE__) || ((defined(__linux) || defined(__linux__)) && defined(__PPC64__))
// This check is in case the compiler doesn't define _CALL_AIX/etc.
result[n++] = *(sp+2);
#elif defined(__linux)
// This check is in case the compiler doesn't define _CALL_SYSV.
result[n++] = *(sp+1);
#else
#error Need to specify the PPC ABI for your archiecture.
#endif
}
// Use strict unwinding rules.
sp = NextStackFrame<true>(sp);
}
return n;
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2000 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Andrew Schwartzmeyer
//
// Windows implementation - just use CaptureStackBackTrace
#include "config.h"
#include "port.h"
#include "stacktrace.h"
#include <DbgHelp.h>
_START_GOOGLE_NAMESPACE_
int GetStackTrace(void** result, int max_depth, int skip_count) {
if (max_depth > 64) {
max_depth = 64;
}
skip_count++; // we want to skip the current frame as well
// This API is thread-safe (moreover it walks only the current thread).
return CaptureStackBackTrace(skip_count, max_depth, result, NULL);
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2000 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Produce stack trace
#include <stdint.h> // for uintptr_t
#include "utilities.h" // for OS_* macros
#if !defined(OS_WINDOWS)
#include <unistd.h>
#include <sys/mman.h>
#endif
#include <stdio.h> // for NULL
#include "stacktrace.h"
_START_GOOGLE_NAMESPACE_
// Given a pointer to a stack frame, locate and return the calling
// stackframe, or return NULL if no stackframe can be found. Perform sanity
// checks (the strictness of which is controlled by the boolean parameter
// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
template<bool STRICT_UNWINDING>
static void **NextStackFrame(void **old_sp) {
void **new_sp = (void **) *old_sp;
// Check that the transition from frame pointer old_sp to frame
// pointer new_sp isn't clearly bogus
if (STRICT_UNWINDING) {
// With the stack growing downwards, older stack frame must be
// at a greater address that the current one.
if (new_sp <= old_sp) return NULL;
// Assume stack frames larger than 100,000 bytes are bogus.
if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
} else {
// In the non-strict mode, allow discontiguous stack frames.
// (alternate-signal-stacks for example).
if (new_sp == old_sp) return NULL;
// And allow frames upto about 1MB.
if ((new_sp > old_sp)
&& ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
}
if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
#ifdef __i386__
// On 64-bit machines, the stack pointer can be very close to
// 0xffffffff, so we explicitly check for a pointer into the
// last two pages in the address space
if ((uintptr_t)new_sp >= 0xffffe000) return NULL;
#endif
#if !defined(OS_WINDOWS)
if (!STRICT_UNWINDING) {
// Lax sanity checks cause a crash in 32-bit tcmalloc/crash_reason_test
// on AMD-based machines with VDSO-enabled kernels.
// Make an extra sanity check to insure new_sp is readable.
// Note: NextStackFrame<false>() is only called while the program
// is already on its last leg, so it's ok to be slow here.
static int page_size = getpagesize();
void *new_sp_aligned = (void *)((uintptr_t)new_sp & ~(page_size - 1));
if (msync(new_sp_aligned, page_size, MS_ASYNC) == -1)
return NULL;
}
#endif
return new_sp;
}
// If you change this function, also change GetStackFrames below.
int GetStackTrace(void** result, int max_depth, int skip_count) {
void **sp;
#ifdef __GNUC__
#if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
#define USE_BUILTIN_FRAME_ADDRESS
#endif
#endif
#ifdef USE_BUILTIN_FRAME_ADDRESS
sp = reinterpret_cast<void**>(__builtin_frame_address(0));
#elif defined(__i386__)
// Stack frame format:
// sp[0] pointer to previous frame
// sp[1] caller address
// sp[2] first argument
// ...
sp = (void **)&result - 2;
#elif defined(__x86_64__)
// __builtin_frame_address(0) can return the wrong address on gcc-4.1.0-k8
unsigned long rbp;
// Move the value of the register %rbp into the local variable rbp.
// We need 'volatile' to prevent this instruction from getting moved
// around during optimization to before function prologue is done.
// An alternative way to achieve this
// would be (before this __asm__ instruction) to call Noop() defined as
// static void Noop() __attribute__ ((noinline)); // prevent inlining
// static void Noop() { asm(""); } // prevent optimizing-away
__asm__ volatile ("mov %%rbp, %0" : "=r" (rbp));
// Arguments are passed in registers on x86-64, so we can't just
// offset from &result
sp = (void **) rbp;
#endif
int n = 0;
while (sp && n < max_depth) {
if (*(sp+1) == (void *)0) {
// In 64-bit code, we often see a frame that
// points to itself and has a return address of 0.
break;
}
if (skip_count > 0) {
skip_count--;
} else {
result[n++] = *(sp+1);
}
// Use strict unwinding rules.
sp = NextStackFrame<true>(sp);
}
return n;
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2005 - 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Arun Sharma
//
// Produce stack trace using libgcc
extern "C" {
#include <stdlib.h> // for NULL
#include <unwind.h> // ABI defined unwinder
}
#include "stacktrace.h"
_START_GOOGLE_NAMESPACE_
typedef struct {
void **result;
int max_depth;
int skip_count;
int count;
} trace_arg_t;
// Workaround for the malloc() in _Unwind_Backtrace() issue.
static _Unwind_Reason_Code nop_backtrace(struct _Unwind_Context *uc, void *opq) {
return _URC_NO_REASON;
}
// This code is not considered ready to run until
// static initializers run so that we are guaranteed
// that any malloc-related initialization is done.
static bool ready_to_run = false;
class StackTraceInit {
public:
StackTraceInit() {
// Extra call to force initialization
_Unwind_Backtrace(nop_backtrace, NULL);
ready_to_run = true;
}
};
static StackTraceInit module_initializer; // Force initialization
static _Unwind_Reason_Code GetOneFrame(struct _Unwind_Context *uc, void *opq) {
trace_arg_t *targ = (trace_arg_t *) opq;
if (targ->skip_count > 0) {
targ->skip_count--;
} else {
targ->result[targ->count++] = (void *) _Unwind_GetIP(uc);
}
if (targ->count == targ->max_depth)
return _URC_END_OF_STACK;
return _URC_NO_REASON;
}
// If you change this function, also change GetStackFrames below.
int GetStackTrace(void** result, int max_depth, int skip_count) {
if (!ready_to_run)
return 0;
trace_arg_t targ;
skip_count += 1; // Do not include the "GetStackTrace" frame
targ.result = result;
targ.max_depth = max_depth;
targ.skip_count = skip_count;
targ.count = 0;
_Unwind_Backtrace(GetOneFrame, &targ);
return targ.count;
}
_END_GOOGLE_NAMESPACE_

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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Satoru Takabayashi
// Stack-footprint reduction work done by Raksit Ashok
//
// Implementation note:
//
// We don't use heaps but only use stacks. We want to reduce the
// stack consumption so that the symbolizer can run on small stacks.
//
// Here are some numbers collected with GCC 4.1.0 on x86:
// - sizeof(Elf32_Sym) = 16
// - sizeof(Elf32_Shdr) = 40
// - sizeof(Elf64_Sym) = 24
// - sizeof(Elf64_Shdr) = 64
//
// This implementation is intended to be async-signal-safe but uses
// some functions which are not guaranteed to be so, such as memchr()
// and memmove(). We assume they are async-signal-safe.
//
// Additional header can be specified by the GLOG_BUILD_CONFIG_INCLUDE
// macro to add platform specific defines (e.g. OS_OPENBSD).
#ifdef GLOG_BUILD_CONFIG_INCLUDE
#include GLOG_BUILD_CONFIG_INCLUDE
#endif // GLOG_BUILD_CONFIG_INCLUDE
#include "utilities.h"
#if defined(HAVE_SYMBOLIZE)
#include <string.h>
#include <algorithm>
#include <limits>
#include "symbolize.h"
#include "demangle.h"
_START_GOOGLE_NAMESPACE_
// We don't use assert() since it's not guaranteed to be
// async-signal-safe. Instead we define a minimal assertion
// macro. So far, we don't need pretty printing for __FILE__, etc.
// A wrapper for abort() to make it callable in ? :.
static int AssertFail() {
abort();
return 0; // Should not reach.
}
#define SAFE_ASSERT(expr) ((expr) ? 0 : AssertFail())
static SymbolizeCallback g_symbolize_callback = NULL;
void InstallSymbolizeCallback(SymbolizeCallback callback) {
g_symbolize_callback = callback;
}
static SymbolizeOpenObjectFileCallback g_symbolize_open_object_file_callback =
NULL;
void InstallSymbolizeOpenObjectFileCallback(
SymbolizeOpenObjectFileCallback callback) {
g_symbolize_open_object_file_callback = callback;
}
// This function wraps the Demangle function to provide an interface
// where the input symbol is demangled in-place.
// To keep stack consumption low, we would like this function to not
// get inlined.
static ATTRIBUTE_NOINLINE void DemangleInplace(char *out, int out_size) {
char demangled[256]; // Big enough for sane demangled symbols.
if (Demangle(out, demangled, sizeof(demangled))) {
// Demangling succeeded. Copy to out if the space allows.
size_t len = strlen(demangled);
if (len + 1 <= (size_t)out_size) { // +1 for '\0'.
SAFE_ASSERT(len < sizeof(demangled));
memmove(out, demangled, len + 1);
}
}
}
_END_GOOGLE_NAMESPACE_
#if defined(__ELF__)
#include <dlfcn.h>
#if defined(OS_OPENBSD)
#include <sys/exec_elf.h>
#else
#include <elf.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "symbolize.h"
#include "config.h"
#include "glog/raw_logging.h"
// Re-runs fn until it doesn't cause EINTR.
#define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR)
_START_GOOGLE_NAMESPACE_
// Read up to "count" bytes from "offset" in the file pointed by file
// descriptor "fd" into the buffer starting at "buf" while handling short reads
// and EINTR. On success, return the number of bytes read. Otherwise, return
// -1.
static ssize_t ReadFromOffset(const int fd, void *buf, const size_t count,
const off_t offset) {
SAFE_ASSERT(fd >= 0);
SAFE_ASSERT(count <= std::numeric_limits<ssize_t>::max());
char *buf0 = reinterpret_cast<char *>(buf);
ssize_t num_bytes = 0;
while (num_bytes < count) {
ssize_t len;
NO_INTR(len = pread(fd, buf0 + num_bytes, count - num_bytes,
offset + num_bytes));
if (len < 0) { // There was an error other than EINTR.
return -1;
}
if (len == 0) { // Reached EOF.
break;
}
num_bytes += len;
}
SAFE_ASSERT(num_bytes <= count);
return num_bytes;
}
// Try reading exactly "count" bytes from "offset" bytes in a file
// pointed by "fd" into the buffer starting at "buf" while handling
// short reads and EINTR. On success, return true. Otherwise, return
// false.
static bool ReadFromOffsetExact(const int fd, void *buf,
const size_t count, const off_t offset) {
ssize_t len = ReadFromOffset(fd, buf, count, offset);
return len == count;
}
// Returns elf_header.e_type if the file pointed by fd is an ELF binary.
static int FileGetElfType(const int fd) {
ElfW(Ehdr) elf_header;
if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
return -1;
}
if (memcmp(elf_header.e_ident, ELFMAG, SELFMAG) != 0) {
return -1;
}
return elf_header.e_type;
}
// Read the section headers in the given ELF binary, and if a section
// of the specified type is found, set the output to this section header
// and return true. Otherwise, return false.
// To keep stack consumption low, we would like this function to not get
// inlined.
static ATTRIBUTE_NOINLINE bool
GetSectionHeaderByType(const int fd, ElfW(Half) sh_num, const off_t sh_offset,
ElfW(Word) type, ElfW(Shdr) *out) {
// Read at most 16 section headers at a time to save read calls.
ElfW(Shdr) buf[16];
for (int i = 0; i < sh_num;) {
const ssize_t num_bytes_left = (sh_num - i) * sizeof(buf[0]);
const ssize_t num_bytes_to_read =
(sizeof(buf) > num_bytes_left) ? num_bytes_left : sizeof(buf);
const ssize_t len = ReadFromOffset(fd, buf, num_bytes_to_read,
sh_offset + i * sizeof(buf[0]));
if (len == -1) {
return false;
}
SAFE_ASSERT(len % sizeof(buf[0]) == 0);
const ssize_t num_headers_in_buf = len / sizeof(buf[0]);
SAFE_ASSERT(num_headers_in_buf <= sizeof(buf) / sizeof(buf[0]));
for (int j = 0; j < num_headers_in_buf; ++j) {
if (buf[j].sh_type == type) {
*out = buf[j];
return true;
}
}
i += num_headers_in_buf;
}
return false;
}
// There is no particular reason to limit section name to 63 characters,
// but there has (as yet) been no need for anything longer either.
const int kMaxSectionNameLen = 64;
// name_len should include terminating '\0'.
bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
ElfW(Shdr) *out) {
ElfW(Ehdr) elf_header;
if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
return false;
}
ElfW(Shdr) shstrtab;
off_t shstrtab_offset = (elf_header.e_shoff +
elf_header.e_shentsize * elf_header.e_shstrndx);
if (!ReadFromOffsetExact(fd, &shstrtab, sizeof(shstrtab), shstrtab_offset)) {
return false;
}
for (int i = 0; i < elf_header.e_shnum; ++i) {
off_t section_header_offset = (elf_header.e_shoff +
elf_header.e_shentsize * i);
if (!ReadFromOffsetExact(fd, out, sizeof(*out), section_header_offset)) {
return false;
}
char header_name[kMaxSectionNameLen];
if (sizeof(header_name) < name_len) {
RAW_LOG(WARNING, "Section name '%s' is too long (%" PRIuS "); "
"section will not be found (even if present).", name, name_len);
// No point in even trying.
return false;
}
off_t name_offset = shstrtab.sh_offset + out->sh_name;
ssize_t n_read = ReadFromOffset(fd, &header_name, name_len, name_offset);
if (n_read == -1) {
return false;
} else if (n_read != name_len) {
// Short read -- name could be at end of file.
continue;
}
if (memcmp(header_name, name, name_len) == 0) {
return true;
}
}
return false;
}
// Read a symbol table and look for the symbol containing the
// pc. Iterate over symbols in a symbol table and look for the symbol
// containing "pc". On success, return true and write the symbol name
// to out. Otherwise, return false.
// To keep stack consumption low, we would like this function to not get
// inlined.
static ATTRIBUTE_NOINLINE bool
FindSymbol(uint64_t pc, const int fd, char *out, int out_size,
uint64_t symbol_offset, const ElfW(Shdr) *strtab,
const ElfW(Shdr) *symtab) {
if (symtab == NULL) {
return false;
}
const int num_symbols = symtab->sh_size / symtab->sh_entsize;
for (int i = 0; i < num_symbols;) {
off_t offset = symtab->sh_offset + i * symtab->sh_entsize;
// If we are reading Elf64_Sym's, we want to limit this array to
// 32 elements (to keep stack consumption low), otherwise we can
// have a 64 element Elf32_Sym array.
#if __WORDSIZE == 64
#define NUM_SYMBOLS 32
#else
#define NUM_SYMBOLS 64
#endif
// Read at most NUM_SYMBOLS symbols at once to save read() calls.
ElfW(Sym) buf[NUM_SYMBOLS];
int num_symbols_to_read = std::min(NUM_SYMBOLS, num_symbols - i);
const ssize_t len =
ReadFromOffset(fd, &buf, sizeof(buf[0]) * num_symbols_to_read, offset);
SAFE_ASSERT(len % sizeof(buf[0]) == 0);
const ssize_t num_symbols_in_buf = len / sizeof(buf[0]);
SAFE_ASSERT(num_symbols_in_buf <= num_symbols_to_read);
for (int j = 0; j < num_symbols_in_buf; ++j) {
const ElfW(Sym)& symbol = buf[j];
uint64_t start_address = symbol.st_value;
start_address += symbol_offset;
uint64_t end_address = start_address + symbol.st_size;
if (symbol.st_value != 0 && // Skip null value symbols.
symbol.st_shndx != 0 && // Skip undefined symbols.
start_address <= pc && pc < end_address) {
ssize_t len1 = ReadFromOffset(fd, out, out_size,
strtab->sh_offset + symbol.st_name);
if (len1 <= 0 || memchr(out, '\0', out_size) == NULL) {
return false;
}
return true; // Obtained the symbol name.
}
}
i += num_symbols_in_buf;
}
return false;
}
// Get the symbol name of "pc" from the file pointed by "fd". Process
// both regular and dynamic symbol tables if necessary. On success,
// write the symbol name to "out" and return true. Otherwise, return
// false.
static bool GetSymbolFromObjectFile(const int fd,
uint64_t pc,
char* out,
int out_size,
uint64_t base_address) {
// Read the ELF header.
ElfW(Ehdr) elf_header;
if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
return false;
}
ElfW(Shdr) symtab, strtab;
// Consult a regular symbol table first.
if (GetSectionHeaderByType(fd, elf_header.e_shnum, elf_header.e_shoff,
SHT_SYMTAB, &symtab)) {
if (!ReadFromOffsetExact(fd, &strtab, sizeof(strtab), elf_header.e_shoff +
symtab.sh_link * sizeof(symtab))) {
return false;
}
if (FindSymbol(pc, fd, out, out_size, base_address, &strtab, &symtab)) {
return true; // Found the symbol in a regular symbol table.
}
}
// If the symbol is not found, then consult a dynamic symbol table.
if (GetSectionHeaderByType(fd, elf_header.e_shnum, elf_header.e_shoff,
SHT_DYNSYM, &symtab)) {
if (!ReadFromOffsetExact(fd, &strtab, sizeof(strtab), elf_header.e_shoff +
symtab.sh_link * sizeof(symtab))) {
return false;
}
if (FindSymbol(pc, fd, out, out_size, base_address, &strtab, &symtab)) {
return true; // Found the symbol in a dynamic symbol table.
}
}
return false;
}
namespace {
// Thin wrapper around a file descriptor so that the file descriptor
// gets closed for sure.
struct FileDescriptor {
const int fd_;
explicit FileDescriptor(int fd) : fd_(fd) {}
~FileDescriptor() {
if (fd_ >= 0) {
NO_INTR(close(fd_));
}
}
int get() { return fd_; }
private:
explicit FileDescriptor(const FileDescriptor&);
void operator=(const FileDescriptor&);
};
// Helper class for reading lines from file.
//
// Note: we don't use ProcMapsIterator since the object is big (it has
// a 5k array member) and uses async-unsafe functions such as sscanf()
// and snprintf().
class LineReader {
public:
explicit LineReader(int fd, char *buf, int buf_len, off_t offset)
: fd_(fd),
buf_(buf),
buf_len_(buf_len),
offset_(offset),
bol_(buf),
eol_(buf),
eod_(buf) {}
// Read '\n'-terminated line from file. On success, modify "bol"
// and "eol", then return true. Otherwise, return false.
//
// Note: if the last line doesn't end with '\n', the line will be
// dropped. It's an intentional behavior to make the code simple.
bool ReadLine(const char **bol, const char **eol) {
if (BufferIsEmpty()) { // First time.
const ssize_t num_bytes = ReadFromOffset(fd_, buf_, buf_len_, offset_);
if (num_bytes <= 0) { // EOF or error.
return false;
}
offset_ += num_bytes;
eod_ = buf_ + num_bytes;
bol_ = buf_;
} else {
bol_ = eol_ + 1; // Advance to the next line in the buffer.
SAFE_ASSERT(bol_ <= eod_); // "bol_" can point to "eod_".
if (!HasCompleteLine()) {
const int incomplete_line_length = eod_ - bol_;
// Move the trailing incomplete line to the beginning.
memmove(buf_, bol_, incomplete_line_length);
// Read text from file and append it.
char * const append_pos = buf_ + incomplete_line_length;
const int capacity_left = buf_len_ - incomplete_line_length;
const ssize_t num_bytes =
ReadFromOffset(fd_, append_pos, capacity_left, offset_);
if (num_bytes <= 0) { // EOF or error.
return false;
}
offset_ += num_bytes;
eod_ = append_pos + num_bytes;
bol_ = buf_;
}
}
eol_ = FindLineFeed();
if (eol_ == NULL) { // '\n' not found. Malformed line.
return false;
}
*eol_ = '\0'; // Replace '\n' with '\0'.
*bol = bol_;
*eol = eol_;
return true;
}
// Beginning of line.
const char *bol() {
return bol_;
}
// End of line.
const char *eol() {
return eol_;
}
private:
explicit LineReader(const LineReader&);
void operator=(const LineReader&);
char *FindLineFeed() {
return reinterpret_cast<char *>(memchr(bol_, '\n', eod_ - bol_));
}
bool BufferIsEmpty() {
return buf_ == eod_;
}
bool HasCompleteLine() {
return !BufferIsEmpty() && FindLineFeed() != NULL;
}
const int fd_;
char * const buf_;
const int buf_len_;
off_t offset_;
char *bol_;
char *eol_;
const char *eod_; // End of data in "buf_".
};
} // namespace
// Place the hex number read from "start" into "*hex". The pointer to
// the first non-hex character or "end" is returned.
static char *GetHex(const char *start, const char *end, uint64_t *hex) {
*hex = 0;
const char *p;
for (p = start; p < end; ++p) {
int ch = *p;
if ((ch >= '0' && ch <= '9') ||
(ch >= 'A' && ch <= 'F') || (ch >= 'a' && ch <= 'f')) {
*hex = (*hex << 4) | (ch < 'A' ? ch - '0' : (ch & 0xF) + 9);
} else { // Encountered the first non-hex character.
break;
}
}
SAFE_ASSERT(p <= end);
return const_cast<char *>(p);
}
// Searches for the object file (from /proc/self/maps) that contains
// the specified pc. If found, sets |start_address| to the start address
// of where this object file is mapped in memory, sets the module base
// address into |base_address|, copies the object file name into
// |out_file_name|, and attempts to open the object file. If the object
// file is opened successfully, returns the file descriptor. Otherwise,
// returns -1. |out_file_name_size| is the size of the file name buffer
// (including the null-terminator).
static ATTRIBUTE_NOINLINE int
OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
uint64_t &start_address,
uint64_t &base_address,
char *out_file_name,
int out_file_name_size) {
int object_fd;
int maps_fd;
NO_INTR(maps_fd = open("/proc/self/maps", O_RDONLY));
FileDescriptor wrapped_maps_fd(maps_fd);
if (wrapped_maps_fd.get() < 0) {
return -1;
}
int mem_fd;
NO_INTR(mem_fd = open("/proc/self/mem", O_RDONLY));
FileDescriptor wrapped_mem_fd(mem_fd);
if (wrapped_mem_fd.get() < 0) {
return -1;
}
// Iterate over maps and look for the map containing the pc. Then
// look into the symbol tables inside.
char buf[1024]; // Big enough for line of sane /proc/self/maps
int num_maps = 0;
LineReader reader(wrapped_maps_fd.get(), buf, sizeof(buf), 0);
while (true) {
num_maps++;
const char *cursor;
const char *eol;
if (!reader.ReadLine(&cursor, &eol)) { // EOF or malformed line.
return -1;
}
// Start parsing line in /proc/self/maps. Here is an example:
//
// 08048000-0804c000 r-xp 00000000 08:01 2142121 /bin/cat
//
// We want start address (08048000), end address (0804c000), flags
// (r-xp) and file name (/bin/cat).
// Read start address.
cursor = GetHex(cursor, eol, &start_address);
if (cursor == eol || *cursor != '-') {
return -1; // Malformed line.
}
++cursor; // Skip '-'.
// Read end address.
uint64_t end_address;
cursor = GetHex(cursor, eol, &end_address);
if (cursor == eol || *cursor != ' ') {
return -1; // Malformed line.
}
++cursor; // Skip ' '.
// Read flags. Skip flags until we encounter a space or eol.
const char * const flags_start = cursor;
while (cursor < eol && *cursor != ' ') {
++cursor;
}
// We expect at least four letters for flags (ex. "r-xp").
if (cursor == eol || cursor < flags_start + 4) {
return -1; // Malformed line.
}
// Determine the base address by reading ELF headers in process memory.
ElfW(Ehdr) ehdr;
// Skip non-readable maps.
if (flags_start[0] == 'r' &&
ReadFromOffsetExact(mem_fd, &ehdr, sizeof(ElfW(Ehdr)), start_address) &&
memcmp(ehdr.e_ident, ELFMAG, SELFMAG) == 0) {
switch (ehdr.e_type) {
case ET_EXEC:
base_address = 0;
break;
case ET_DYN:
// Find the segment containing file offset 0. This will correspond
// to the ELF header that we just read. Normally this will have
// virtual address 0, but this is not guaranteed. We must subtract
// the virtual address from the address where the ELF header was
// mapped to get the base address.
//
// If we fail to find a segment for file offset 0, use the address
// of the ELF header as the base address.
base_address = start_address;
for (unsigned i = 0; i != ehdr.e_phnum; ++i) {
ElfW(Phdr) phdr;
if (ReadFromOffsetExact(
mem_fd, &phdr, sizeof(phdr),
start_address + ehdr.e_phoff + i * sizeof(phdr)) &&
phdr.p_type == PT_LOAD && phdr.p_offset == 0) {
base_address = start_address - phdr.p_vaddr;
break;
}
}
break;
default:
// ET_REL or ET_CORE. These aren't directly executable, so they don't
// affect the base address.
break;
}
}
// Check start and end addresses.
if (!(start_address <= pc && pc < end_address)) {
continue; // We skip this map. PC isn't in this map.
}
// Check flags. We are only interested in "r*x" maps.
if (flags_start[0] != 'r' || flags_start[2] != 'x') {
continue; // We skip this map.
}
++cursor; // Skip ' '.
// Read file offset.
uint64_t file_offset;
cursor = GetHex(cursor, eol, &file_offset);
if (cursor == eol || *cursor != ' ') {
return -1; // Malformed line.
}
++cursor; // Skip ' '.
// Skip to file name. "cursor" now points to dev. We need to
// skip at least two spaces for dev and inode.
int num_spaces = 0;
while (cursor < eol) {
if (*cursor == ' ') {
++num_spaces;
} else if (num_spaces >= 2) {
// The first non-space character after skipping two spaces
// is the beginning of the file name.
break;
}
++cursor;
}
if (cursor == eol) {
return -1; // Malformed line.
}
// Finally, "cursor" now points to file name of our interest.
NO_INTR(object_fd = open(cursor, O_RDONLY));
if (object_fd < 0) {
// Failed to open object file. Copy the object file name to
// |out_file_name|.
strncpy(out_file_name, cursor, out_file_name_size);
// Making sure |out_file_name| is always null-terminated.
out_file_name[out_file_name_size - 1] = '\0';
return -1;
}
return object_fd;
}
}
// POSIX doesn't define any async-signal safe function for converting
// an integer to ASCII. We'll have to define our own version.
// itoa_r() converts a (signed) integer to ASCII. It returns "buf", if the
// conversion was successful or NULL otherwise. It never writes more than "sz"
// bytes. Output will be truncated as needed, and a NUL character is always
// appended.
// NOTE: code from sandbox/linux/seccomp-bpf/demo.cc.
static char *itoa_r(intptr_t i, char *buf, size_t sz, int base, size_t padding) {
// Make sure we can write at least one NUL byte.
size_t n = 1;
if (n > sz)
return NULL;
if (base < 2 || base > 16) {
buf[0] = '\000';
return NULL;
}
char *start = buf;
uintptr_t j = i;
// Handle negative numbers (only for base 10).
if (i < 0 && base == 10) {
// This does "j = -i" while avoiding integer overflow.
j = static_cast<uintptr_t>(-(i + 1)) + 1;
// Make sure we can write the '-' character.
if (++n > sz) {
buf[0] = '\000';
return NULL;
}
*start++ = '-';
}
// Loop until we have converted the entire number. Output at least one
// character (i.e. '0').
char *ptr = start;
do {
// Make sure there is still enough space left in our output buffer.
if (++n > sz) {
buf[0] = '\000';
return NULL;
}
// Output the next digit.
*ptr++ = "0123456789abcdef"[j % base];
j /= base;
if (padding > 0)
padding--;
} while (j > 0 || padding > 0);
// Terminate the output with a NUL character.
*ptr = '\000';
// Conversion to ASCII actually resulted in the digits being in reverse
// order. We can't easily generate them in forward order, as we can't tell
// the number of characters needed until we are done converting.
// So, now, we reverse the string (except for the possible "-" sign).
while (--ptr > start) {
char ch = *ptr;
*ptr = *start;
*start++ = ch;
}
return buf;
}
// Safely appends string |source| to string |dest|. Never writes past the
// buffer size |dest_size| and guarantees that |dest| is null-terminated.
static void SafeAppendString(const char* source, char* dest, int dest_size) {
int dest_string_length = strlen(dest);
SAFE_ASSERT(dest_string_length < dest_size);
dest += dest_string_length;
dest_size -= dest_string_length;
strncpy(dest, source, dest_size);
// Making sure |dest| is always null-terminated.
dest[dest_size - 1] = '\0';
}
// Converts a 64-bit value into a hex string, and safely appends it to |dest|.
// Never writes past the buffer size |dest_size| and guarantees that |dest| is
// null-terminated.
static void SafeAppendHexNumber(uint64_t value, char* dest, int dest_size) {
// 64-bit numbers in hex can have up to 16 digits.
char buf[17] = {'\0'};
SafeAppendString(itoa_r(value, buf, sizeof(buf), 16, 0), dest, dest_size);
}
// The implementation of our symbolization routine. If it
// successfully finds the symbol containing "pc" and obtains the
// symbol name, returns true and write the symbol name to "out".
// Otherwise, returns false. If Callback function is installed via
// InstallSymbolizeCallback(), the function is also called in this function,
// and "out" is used as its output.
// To keep stack consumption low, we would like this function to not
// get inlined.
static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
int out_size) {
uint64_t pc0 = reinterpret_cast<uintptr_t>(pc);
uint64_t start_address = 0;
uint64_t base_address = 0;
int object_fd = -1;
if (out_size < 1) {
return false;
}
out[0] = '\0';
SafeAppendString("(", out, out_size);
if (g_symbolize_open_object_file_callback) {
object_fd = g_symbolize_open_object_file_callback(pc0, start_address,
base_address, out + 1,
out_size - 1);
} else {
object_fd = OpenObjectFileContainingPcAndGetStartAddress(pc0, start_address,
base_address,
out + 1,
out_size - 1);
}
#if defined(PRINT_UNSYMBOLIZED_STACK_TRACES)
{
FileDescriptor wrapped_object_fd(object_fd);
#else
// Check whether a file name was returned.
if (object_fd < 0) {
#endif
if (out[1]) {
// The object file containing PC was determined successfully however the
// object file was not opened successfully. This is still considered
// success because the object file name and offset are known and tools
// like asan_symbolize.py can be used for the symbolization.
out[out_size - 1] = '\0'; // Making sure |out| is always null-terminated.
SafeAppendString("+0x", out, out_size);
SafeAppendHexNumber(pc0 - base_address, out, out_size);
SafeAppendString(")", out, out_size);
return true;
}
// Failed to determine the object file containing PC. Bail out.
return false;
}
FileDescriptor wrapped_object_fd(object_fd);
int elf_type = FileGetElfType(wrapped_object_fd.get());
if (elf_type == -1) {
return false;
}
if (g_symbolize_callback) {
// Run the call back if it's installed.
// Note: relocation (and much of the rest of this code) will be
// wrong for prelinked shared libraries and PIE executables.
uint64_t relocation = (elf_type == ET_DYN) ? start_address : 0;
int num_bytes_written = g_symbolize_callback(wrapped_object_fd.get(),
pc, out, out_size,
relocation);
if (num_bytes_written > 0) {
out += num_bytes_written;
out_size -= num_bytes_written;
}
}
if (!GetSymbolFromObjectFile(wrapped_object_fd.get(), pc0,
out, out_size, base_address)) {
return false;
}
// Symbolization succeeded. Now we try to demangle the symbol.
DemangleInplace(out, out_size);
return true;
}
_END_GOOGLE_NAMESPACE_
#elif defined(OS_MACOSX) && defined(HAVE_DLADDR)
#include <dlfcn.h>
#include <string.h>
_START_GOOGLE_NAMESPACE_
static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
int out_size) {
Dl_info info;
if (dladdr(pc, &info)) {
if ((int)strlen(info.dli_sname) < out_size) {
strcpy(out, info.dli_sname);
// Symbolization succeeded. Now we try to demangle the symbol.
DemangleInplace(out, out_size);
return true;
}
}
return false;
}
_END_GOOGLE_NAMESPACE_
#elif defined(OS_WINDOWS) || defined(OS_CYGWIN)
#include <windows.h>
#include <dbghelp.h>
#ifdef _MSC_VER
#pragma comment(lib, "dbghelp")
#endif
_START_GOOGLE_NAMESPACE_
class SymInitializer {
public:
HANDLE process;
bool ready;
SymInitializer() : process(NULL), ready(false) {
// Initialize the symbol handler.
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms680344(v=vs.85).aspx
process = GetCurrentProcess();
// Defer symbol loading.
// We do not request undecorated symbols with SYMOPT_UNDNAME
// because the mangling library calls UnDecorateSymbolName.
SymSetOptions(SYMOPT_DEFERRED_LOADS);
if (SymInitialize(process, NULL, true)) {
ready = true;
}
}
~SymInitializer() {
SymCleanup(process);
// We do not need to close `HANDLE process` because it's a "pseudo handle."
}
private:
SymInitializer(const SymInitializer&);
SymInitializer& operator=(const SymInitializer&);
};
static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
int out_size) {
const static SymInitializer symInitializer;
if (!symInitializer.ready) {
return false;
}
// Resolve symbol information from address.
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms680578(v=vs.85).aspx
char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
SYMBOL_INFO *symbol = reinterpret_cast<SYMBOL_INFO *>(buf);
symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
symbol->MaxNameLen = MAX_SYM_NAME;
// We use the ANSI version to ensure the string type is always `char *`.
// This could break if a symbol has Unicode in it.
BOOL ret = SymFromAddr(symInitializer.process,
reinterpret_cast<DWORD64>(pc), 0, symbol);
if (ret == 1 && static_cast<int>(symbol->NameLen) < out_size) {
// `NameLen` does not include the null terminating character.
strncpy(out, symbol->Name, static_cast<size_t>(symbol->NameLen) + 1);
out[static_cast<size_t>(symbol->NameLen)] = '\0';
// Symbolization succeeded. Now we try to demangle the symbol.
DemangleInplace(out, out_size);
return true;
}
return false;
}
_END_GOOGLE_NAMESPACE_
#else
# error BUG: HAVE_SYMBOLIZE was wrongly set
#endif
_START_GOOGLE_NAMESPACE_
bool Symbolize(void *pc, char *out, int out_size) {
SAFE_ASSERT(out_size >= 0);
return SymbolizeAndDemangle(pc, out, out_size);
}
_END_GOOGLE_NAMESPACE_
#else /* HAVE_SYMBOLIZE */
#include <assert.h>
#include "config.h"
_START_GOOGLE_NAMESPACE_
// TODO: Support other environments.
bool Symbolize(void *pc, char *out, int out_size) {
assert(0);
return false;
}
_END_GOOGLE_NAMESPACE_
#endif

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@@ -0,0 +1,158 @@
// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Satoru Takabayashi
//
// This library provides Symbolize() function that symbolizes program
// counters to their corresponding symbol names on linux platforms.
// This library has a minimal implementation of an ELF symbol table
// reader (i.e. it doesn't depend on libelf, etc.).
//
// The algorithm used in Symbolize() is as follows.
//
// 1. Go through a list of maps in /proc/self/maps and find the map
// containing the program counter.
//
// 2. Open the mapped file and find a regular symbol table inside.
// Iterate over symbols in the symbol table and look for the symbol
// containing the program counter. If such a symbol is found,
// obtain the symbol name, and demangle the symbol if possible.
// If the symbol isn't found in the regular symbol table (binary is
// stripped), try the same thing with a dynamic symbol table.
//
// Note that Symbolize() is originally implemented to be used in
// FailureSignalHandler() in base/google.cc. Hence it doesn't use
// malloc() and other unsafe operations. It should be both
// thread-safe and async-signal-safe.
#ifndef BASE_SYMBOLIZE_H_
#define BASE_SYMBOLIZE_H_
#include "utilities.h"
#include "config.h"
#include "glog/logging.h"
#ifdef HAVE_SYMBOLIZE
#if defined(__ELF__) // defined by gcc
#if defined(__OpenBSD__)
#include <sys/exec_elf.h>
#else
#include <elf.h>
#endif
#if !defined(ANDROID)
#include <link.h> // For ElfW() macro.
#endif
// For systems where SIZEOF_VOID_P is not defined, determine it
// based on __LP64__ (defined by gcc on 64-bit systems)
#if !defined(SIZEOF_VOID_P)
# if defined(__LP64__)
# define SIZEOF_VOID_P 8
# else
# define SIZEOF_VOID_P 4
# endif
#endif
// If there is no ElfW macro, let's define it by ourself.
#ifndef ElfW
# if SIZEOF_VOID_P == 4
# define ElfW(type) Elf32_##type
# elif SIZEOF_VOID_P == 8
# define ElfW(type) Elf64_##type
# else
# error "Unknown sizeof(void *)"
# endif
#endif
_START_GOOGLE_NAMESPACE_
// Gets the section header for the given name, if it exists. Returns true on
// success. Otherwise, returns false.
bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
ElfW(Shdr) *out);
_END_GOOGLE_NAMESPACE_
#endif /* __ELF__ */
_START_GOOGLE_NAMESPACE_
// Restrictions on the callbacks that follow:
// - The callbacks must not use heaps but only use stacks.
// - The callbacks must be async-signal-safe.
// Installs a callback function, which will be called right before a symbol name
// is printed. The callback is intended to be used for showing a file name and a
// line number preceding a symbol name.
// "fd" is a file descriptor of the object file containing the program
// counter "pc". The callback function should write output to "out"
// and return the size of the output written. On error, the callback
// function should return -1.
typedef int (*SymbolizeCallback)(int fd,
void* pc,
char* out,
size_t out_size,
uint64_t relocation);
void InstallSymbolizeCallback(SymbolizeCallback callback);
// Installs a callback function, which will be called instead of
// OpenObjectFileContainingPcAndGetStartAddress. The callback is expected
// to searches for the object file (from /proc/self/maps) that contains
// the specified pc. If found, sets |start_address| to the start address
// of where this object file is mapped in memory, sets the module base
// address into |base_address|, copies the object file name into
// |out_file_name|, and attempts to open the object file. If the object
// file is opened successfully, returns the file descriptor. Otherwise,
// returns -1. |out_file_name_size| is the size of the file name buffer
// (including the null-terminator).
typedef int (*SymbolizeOpenObjectFileCallback)(uint64_t pc,
uint64_t& start_address,
uint64_t& base_address,
char* out_file_name,
int out_file_name_size);
void InstallSymbolizeOpenObjectFileCallback(
SymbolizeOpenObjectFileCallback callback);
_END_GOOGLE_NAMESPACE_
#endif
_START_GOOGLE_NAMESPACE_
// Symbolizes a program counter. On success, returns true and write the
// symbol name to "out". The symbol name is demangled if possible
// (supports symbols generated by GCC 3.x or newer). Otherwise,
// returns false.
GOOGLE_GLOG_DLL_DECL bool Symbolize(void *pc, char *out, int out_size);
_END_GOOGLE_NAMESPACE_
#endif // BASE_SYMBOLIZE_H_

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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Shinichiro Hamaji
#include "utilities.h"
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <time.h>
#if defined(HAVE_SYSCALL_H)
#include <syscall.h> // for syscall()
#elif defined(HAVE_SYS_SYSCALL_H)
#include <sys/syscall.h> // for syscall()
#endif
#ifdef HAVE_SYSLOG_H
# include <syslog.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h> // For geteuid.
#endif
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#include "base/googleinit.h"
using std::string;
_START_GOOGLE_NAMESPACE_
static const char* g_program_invocation_short_name = NULL;
static pthread_t g_main_thread_id;
_END_GOOGLE_NAMESPACE_
// The following APIs are all internal.
#ifdef HAVE_STACKTRACE
#include "stacktrace.h"
#include "symbolize.h"
#include "base/commandlineflags.h"
GLOG_DEFINE_bool(symbolize_stacktrace, true,
"Symbolize the stack trace in the tombstone");
_START_GOOGLE_NAMESPACE_
typedef void DebugWriter(const char*, void*);
// The %p field width for printf() functions is two characters per byte.
// For some environments, add two extra bytes for the leading "0x".
static const int kPrintfPointerFieldWidth = 2 + 2 * sizeof(void*);
static void DebugWriteToStderr(const char* data, void *) {
// This one is signal-safe.
if (write(STDERR_FILENO, data, strlen(data)) < 0) {
// Ignore errors.
}
}
static void DebugWriteToString(const char* data, void *arg) {
reinterpret_cast<string*>(arg)->append(data);
}
#ifdef HAVE_SYMBOLIZE
// Print a program counter and its symbol name.
static void DumpPCAndSymbol(DebugWriter *writerfn, void *arg, void *pc,
const char * const prefix) {
char tmp[1024];
const char *symbol = "(unknown)";
// Symbolizes the previous address of pc because pc may be in the
// next function. The overrun happens when the function ends with
// a call to a function annotated noreturn (e.g. CHECK).
if (Symbolize(reinterpret_cast<char *>(pc) - 1, tmp, sizeof(tmp))) {
symbol = tmp;
}
char buf[1024];
snprintf(buf, sizeof(buf), "%s@ %*p %s\n",
prefix, kPrintfPointerFieldWidth, pc, symbol);
writerfn(buf, arg);
}
#endif
static void DumpPC(DebugWriter *writerfn, void *arg, void *pc,
const char * const prefix) {
char buf[100];
snprintf(buf, sizeof(buf), "%s@ %*p\n",
prefix, kPrintfPointerFieldWidth, pc);
writerfn(buf, arg);
}
// Dump current stack trace as directed by writerfn
static void DumpStackTrace(int skip_count, DebugWriter *writerfn, void *arg) {
// Print stack trace
void* stack[32];
int depth = GetStackTrace(stack, ARRAYSIZE(stack), skip_count+1);
for (int i = 0; i < depth; i++) {
#if defined(HAVE_SYMBOLIZE)
if (FLAGS_symbolize_stacktrace) {
DumpPCAndSymbol(writerfn, arg, stack[i], " ");
} else {
DumpPC(writerfn, arg, stack[i], " ");
}
#else
DumpPC(writerfn, arg, stack[i], " ");
#endif
}
}
static void DumpStackTraceAndExit() {
DumpStackTrace(1, DebugWriteToStderr, NULL);
// TOOD(hamaji): Use signal instead of sigaction?
if (IsFailureSignalHandlerInstalled()) {
// Set the default signal handler for SIGABRT, to avoid invoking our
// own signal handler installed by InstallFailureSignalHandler().
#ifdef HAVE_SIGACTION
struct sigaction sig_action;
memset(&sig_action, 0, sizeof(sig_action));
sigemptyset(&sig_action.sa_mask);
sig_action.sa_handler = SIG_DFL;
sigaction(SIGABRT, &sig_action, NULL);
#elif defined(OS_WINDOWS)
signal(SIGABRT, SIG_DFL);
#endif // HAVE_SIGACTION
}
abort();
}
_END_GOOGLE_NAMESPACE_
#endif // HAVE_STACKTRACE
_START_GOOGLE_NAMESPACE_
namespace glog_internal_namespace_ {
const char* ProgramInvocationShortName() {
if (g_program_invocation_short_name != NULL) {
return g_program_invocation_short_name;
} else {
// TODO(hamaji): Use /proc/self/cmdline and so?
return "UNKNOWN";
}
}
bool IsGoogleLoggingInitialized() {
return g_program_invocation_short_name != NULL;
}
bool is_default_thread() {
if (g_program_invocation_short_name == NULL) {
// InitGoogleLogging() not yet called, so unlikely to be in a different
// thread
return true;
} else {
return pthread_equal(pthread_self(), g_main_thread_id);
}
}
#ifdef OS_WINDOWS
struct timeval {
long tv_sec, tv_usec;
};
// Based on: http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/os_win32.c&q=GetSystemTimeAsFileTime%20license:bsd
// See COPYING for copyright information.
static int gettimeofday(struct timeval *tv, void* tz) {
#define EPOCHFILETIME (116444736000000000ULL)
FILETIME ft;
LARGE_INTEGER li;
uint64 tt;
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
li.HighPart = ft.dwHighDateTime;
tt = (li.QuadPart - EPOCHFILETIME) / 10;
tv->tv_sec = tt / 1000000;
tv->tv_usec = tt % 1000000;
return 0;
}
#endif
int64 CycleClock_Now() {
// TODO(hamaji): temporary impementation - it might be too slow.
struct timeval tv;
gettimeofday(&tv, NULL);
return static_cast<int64>(tv.tv_sec) * 1000000 + tv.tv_usec;
}
int64 UsecToCycles(int64 usec) {
return usec;
}
WallTime WallTime_Now() {
// Now, cycle clock is retuning microseconds since the epoch.
return CycleClock_Now() * 0.000001;
}
static int32 g_main_thread_pid = getpid();
int32 GetMainThreadPid() {
return g_main_thread_pid;
}
bool PidHasChanged() {
int32 pid = getpid();
if (g_main_thread_pid == pid) {
return false;
}
g_main_thread_pid = pid;
return true;
}
pid_t GetTID() {
// On Linux and MacOSX, we try to use gettid().
#if defined OS_LINUX || defined OS_MACOSX
#ifndef __NR_gettid
#ifdef OS_MACOSX
#define __NR_gettid SYS_gettid
#elif ! defined __i386__
#error "Must define __NR_gettid for non-x86 platforms"
#else
#define __NR_gettid 224
#endif
#endif
static bool lacks_gettid = false;
if (!lacks_gettid) {
#ifdef OS_MACOSX
uint64_t tid64;
const int error = pthread_threadid_np(NULL, &tid64);
pid_t tid = error ? -1 : (pid_t)tid64;
#else
pid_t tid = syscall(__NR_gettid);
#endif
if (tid != -1) {
return tid;
}
// Technically, this variable has to be volatile, but there is a small
// performance penalty in accessing volatile variables and there should
// not be any serious adverse effect if a thread does not immediately see
// the value change to "true".
lacks_gettid = true;
}
#endif // OS_LINUX || OS_MACOSX
// If gettid() could not be used, we use one of the following.
#if defined OS_LINUX
return getpid(); // Linux: getpid returns thread ID when gettid is absent
#elif defined OS_WINDOWS && !defined OS_CYGWIN
return GetCurrentThreadId();
#elif defined OS_OPENBSD
return getthrid();
#else
// If none of the techniques above worked, we use pthread_self().
return (pid_t)(uintptr_t)pthread_self();
#endif
}
const char* const_basename(const char* filepath) {
const char* base = strrchr(filepath, '/');
#ifdef OS_WINDOWS // Look for either path separator in Windows
if (!base)
base = strrchr(filepath, '\\');
#endif
return base ? (base+1) : filepath;
}
static string g_my_user_name;
const string& MyUserName() {
return g_my_user_name;
}
static void MyUserNameInitializer() {
// TODO(hamaji): Probably this is not portable.
#if defined(OS_WINDOWS)
const char* user = getenv("USERNAME");
#else
const char* user = getenv("USER");
#endif
if (user != NULL) {
g_my_user_name = user;
} else {
#if defined(HAVE_PWD_H) && defined(HAVE_UNISTD_H)
struct passwd pwd;
struct passwd* result = NULL;
char buffer[1024] = {'\0'};
uid_t uid = geteuid();
int pwuid_res = getpwuid_r(uid, &pwd, buffer, sizeof(buffer), &result);
if (pwuid_res == 0) {
g_my_user_name = pwd.pw_name;
} else {
snprintf(buffer, sizeof(buffer), "uid%d", uid);
g_my_user_name = buffer;
}
#endif
if (g_my_user_name.empty()) {
g_my_user_name = "invalid-user";
}
}
}
REGISTER_MODULE_INITIALIZER(utilities, MyUserNameInitializer());
#ifdef HAVE_STACKTRACE
void DumpStackTraceToString(string* stacktrace) {
DumpStackTrace(1, DebugWriteToString, stacktrace);
}
#endif
// We use an atomic operation to prevent problems with calling CrashReason
// from inside the Mutex implementation (potentially through RAW_CHECK).
static const CrashReason* g_reason = 0;
void SetCrashReason(const CrashReason* r) {
sync_val_compare_and_swap(&g_reason,
reinterpret_cast<const CrashReason*>(0),
r);
}
void InitGoogleLoggingUtilities(const char* argv0) {
CHECK(!IsGoogleLoggingInitialized())
<< "You called InitGoogleLogging() twice!";
const char* slash = strrchr(argv0, '/');
#ifdef OS_WINDOWS
if (!slash) slash = strrchr(argv0, '\\');
#endif
g_program_invocation_short_name = slash ? slash + 1 : argv0;
g_main_thread_id = pthread_self();
#ifdef HAVE_STACKTRACE
InstallFailureFunction(&DumpStackTraceAndExit);
#endif
}
void ShutdownGoogleLoggingUtilities() {
CHECK(IsGoogleLoggingInitialized())
<< "You called ShutdownGoogleLogging() without calling InitGoogleLogging() first!";
g_program_invocation_short_name = NULL;
#ifdef HAVE_SYSLOG_H
closelog();
#endif
}
} // namespace glog_internal_namespace_
_END_GOOGLE_NAMESPACE_
// Make an implementation of stacktrace compiled.
#ifdef STACKTRACE_H
# include STACKTRACE_H
# if 0
// For include scanners which can't handle macro expansions.
# include "stacktrace_libunwind-inl.h"
# include "stacktrace_x86-inl.h"
# include "stacktrace_x86_64-inl.h"
# include "stacktrace_powerpc-inl.h"
# include "stacktrace_generic-inl.h"
# endif
#endif

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// Copyright (c) 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Shinichiro Hamaji
//
// Define utilties for glog internal usage.
#ifndef UTILITIES_H__
#define UTILITIES_H__
#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
# define OS_WINDOWS
#elif defined(__CYGWIN__) || defined(__CYGWIN32__)
# define OS_CYGWIN
#elif defined(linux) || defined(__linux) || defined(__linux__)
# ifndef OS_LINUX
# define OS_LINUX
# endif
#elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
# define OS_MACOSX
#elif defined(__FreeBSD__)
# define OS_FREEBSD
#elif defined(__NetBSD__)
# define OS_NETBSD
#elif defined(__OpenBSD__)
# define OS_OPENBSD
#else
// TODO(hamaji): Add other platforms.
#endif
// printf macros for size_t, in the style of inttypes.h
#ifdef _LP64
#define __PRIS_PREFIX "z"
#else
#define __PRIS_PREFIX
#endif
// Use these macros after a % in a printf format string
// to get correct 32/64 bit behavior, like this:
// size_t size = records.size();
// printf("%"PRIuS"\n", size);
#define PRIdS __PRIS_PREFIX "d"
#define PRIxS __PRIS_PREFIX "x"
#define PRIuS __PRIS_PREFIX "u"
#define PRIXS __PRIS_PREFIX "X"
#define PRIoS __PRIS_PREFIX "o"
#include "base/mutex.h" // This must go first so we get _XOPEN_SOURCE
#include <string>
#if defined(OS_WINDOWS)
# include "port.h"
#endif
#include "config.h"
#include "glog/logging.h"
// There are three different ways we can try to get the stack trace:
//
// 1) The libunwind library. This is still in development, and as a
// separate library adds a new dependency, but doesn't need a frame
// pointer. It also doesn't call malloc.
//
// 2) Our hand-coded stack-unwinder. This depends on a certain stack
// layout, which is used by gcc (and those systems using a
// gcc-compatible ABI) on x86 systems, at least since gcc 2.95.
// It uses the frame pointer to do its work.
//
// 3) The gdb unwinder -- also the one used by the c++ exception code.
// It's obviously well-tested, but has a fatal flaw: it can call
// malloc() from the unwinder. This is a problem because we're
// trying to use the unwinder to instrument malloc().
//
// 4) The Windows API CaptureStackTrace.
//
// Note: if you add a new implementation here, make sure it works
// correctly when GetStackTrace() is called with max_depth == 0.
// Some code may do that.
#if defined(HAVE_LIB_UNWIND)
# define STACKTRACE_H "stacktrace_libunwind-inl.h"
#elif !defined(NO_FRAME_POINTER)
# if defined(__i386__) && __GNUC__ >= 2
# define STACKTRACE_H "stacktrace_x86-inl.h"
# elif defined(__x86_64__) && __GNUC__ >= 2 && HAVE_UNWIND_H
# define STACKTRACE_H "stacktrace_x86_64-inl.h"
# elif (defined(__ppc__) || defined(__PPC__)) && __GNUC__ >= 2
# define STACKTRACE_H "stacktrace_powerpc-inl.h"
# elif defined(OS_WINDOWS)
# define STACKTRACE_H "stacktrace_windows-inl.h"
# endif
#endif
#if !defined(STACKTRACE_H) && defined(HAVE_EXECINFO_H)
# define STACKTRACE_H "stacktrace_generic-inl.h"
#endif
#if defined(STACKTRACE_H)
# define HAVE_STACKTRACE
#endif
#ifndef HAVE_SYMBOLIZE
// defined by gcc
#if defined(__ELF__) && defined(OS_LINUX)
# define HAVE_SYMBOLIZE
#elif defined(OS_MACOSX) && defined(HAVE_DLADDR)
// Use dladdr to symbolize.
# define HAVE_SYMBOLIZE
#elif defined(OS_WINDOWS)
// Use DbgHelp to symbolize
# define HAVE_SYMBOLIZE
#endif
#endif // !defined(HAVE_SYMBOLIZE)
#ifndef ARRAYSIZE
// There is a better way, but this is good enough for our purpose.
# define ARRAYSIZE(a) (sizeof(a) / sizeof(*(a)))
#endif
_START_GOOGLE_NAMESPACE_
namespace glog_internal_namespace_ {
#ifdef HAVE___ATTRIBUTE__
# define ATTRIBUTE_NOINLINE __attribute__ ((noinline))
# define HAVE_ATTRIBUTE_NOINLINE
#elif defined(OS_WINDOWS)
# define ATTRIBUTE_NOINLINE __declspec(noinline)
# define HAVE_ATTRIBUTE_NOINLINE
#else
# define ATTRIBUTE_NOINLINE
#endif
const char* ProgramInvocationShortName();
bool IsGoogleLoggingInitialized();
bool is_default_thread();
int64 CycleClock_Now();
int64 UsecToCycles(int64 usec);
typedef double WallTime;
WallTime WallTime_Now();
int32 GetMainThreadPid();
bool PidHasChanged();
pid_t GetTID();
const std::string& MyUserName();
// Get the part of filepath after the last path separator.
// (Doesn't modify filepath, contrary to basename() in libgen.h.)
const char* const_basename(const char* filepath);
// Wrapper of __sync_val_compare_and_swap. If the GCC extension isn't
// defined, we try the CPU specific logics (we only support x86 and
// x86_64 for now) first, then use a naive implementation, which has a
// race condition.
template<typename T>
inline T sync_val_compare_and_swap(T* ptr, T oldval, T newval) {
#if defined(HAVE___SYNC_VAL_COMPARE_AND_SWAP)
return __sync_val_compare_and_swap(ptr, oldval, newval);
#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
T ret;
__asm__ __volatile__("lock; cmpxchg %1, (%2);"
:"=a"(ret)
// GCC may produces %sil or %dil for
// constraint "r", but some of apple's gas
// dosn't know the 8 bit registers.
// We use "q" to avoid these registers.
:"q"(newval), "q"(ptr), "a"(oldval)
:"memory", "cc");
return ret;
#else
T ret = *ptr;
if (ret == oldval) {
*ptr = newval;
}
return ret;
#endif
}
void DumpStackTraceToString(std::string* stacktrace);
struct CrashReason {
CrashReason() : filename(0), line_number(0), message(0), depth(0) {}
const char* filename;
int line_number;
const char* message;
// We'll also store a bit of stack trace context at the time of crash as
// it may not be available later on.
void* stack[32];
int depth;
};
void SetCrashReason(const CrashReason* r);
void InitGoogleLoggingUtilities(const char* argv0);
void ShutdownGoogleLoggingUtilities();
} // namespace glog_internal_namespace_
_END_GOOGLE_NAMESPACE_
using namespace GOOGLE_NAMESPACE::glog_internal_namespace_;
#endif // UTILITIES_H__

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// Copyright (c) 1999, 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Ray Sidney and many others
//
// Broken out from logging.cc by Soren Lassen
// logging_unittest.cc covers the functionality herein
#include "utilities.h"
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <cstdio>
#include <string>
#include "base/commandlineflags.h"
#include "glog/logging.h"
#include "glog/raw_logging.h"
#include "base/googleinit.h"
// glog doesn't have annotation
#define ANNOTATE_BENIGN_RACE(address, description)
using std::string;
GLOG_DEFINE_int32(v, 0, "Show all VLOG(m) messages for m <= this."
" Overridable by --vmodule.");
GLOG_DEFINE_string(vmodule, "", "per-module verbose level."
" Argument is a comma-separated list of <module name>=<log level>."
" <module name> is a glob pattern, matched against the filename base"
" (that is, name ignoring .cc/.h./-inl.h)."
" <log level> overrides any value given by --v.");
_START_GOOGLE_NAMESPACE_
namespace glog_internal_namespace_ {
// Used by logging_unittests.cc so can't make it static here.
GOOGLE_GLOG_DLL_DECL bool SafeFNMatch_(const char* pattern,
size_t patt_len,
const char* str,
size_t str_len);
// Implementation of fnmatch that does not need 0-termination
// of arguments and does not allocate any memory,
// but we only support "*" and "?" wildcards, not the "[...]" patterns.
// It's not a static function for the unittest.
GOOGLE_GLOG_DLL_DECL bool SafeFNMatch_(const char* pattern,
size_t patt_len,
const char* str,
size_t str_len) {
size_t p = 0;
size_t s = 0;
while (1) {
if (p == patt_len && s == str_len) return true;
if (p == patt_len) return false;
if (s == str_len) return p+1 == patt_len && pattern[p] == '*';
if (pattern[p] == str[s] || pattern[p] == '?') {
p += 1;
s += 1;
continue;
}
if (pattern[p] == '*') {
if (p+1 == patt_len) return true;
do {
if (SafeFNMatch_(pattern+(p+1), patt_len-(p+1), str+s, str_len-s)) {
return true;
}
s += 1;
} while (s != str_len);
return false;
}
return false;
}
}
} // namespace glog_internal_namespace_
using glog_internal_namespace_::SafeFNMatch_;
int32 kLogSiteUninitialized = 1000;
// List of per-module log levels from FLAGS_vmodule.
// Once created each element is never deleted/modified
// except for the vlog_level: other threads will read VModuleInfo blobs
// w/o locks and we'll store pointers to vlog_level at VLOG locations
// that will never go away.
// We can't use an STL struct here as we wouldn't know
// when it's safe to delete/update it: other threads need to use it w/o locks.
struct VModuleInfo {
string module_pattern;
mutable int32 vlog_level; // Conceptually this is an AtomicWord, but it's
// too much work to use AtomicWord type here
// w/o much actual benefit.
const VModuleInfo* next;
};
// This protects the following global variables.
static Mutex vmodule_lock;
// Pointer to head of the VModuleInfo list.
// It's a map from module pattern to logging level for those module(s).
static VModuleInfo* vmodule_list = 0;
// Boolean initialization flag.
static bool inited_vmodule = false;
// L >= vmodule_lock.
static void VLOG2Initializer() {
vmodule_lock.AssertHeld();
// Can now parse --vmodule flag and initialize mapping of module-specific
// logging levels.
inited_vmodule = false;
const char* vmodule = FLAGS_vmodule.c_str();
const char* sep;
VModuleInfo* head = NULL;
VModuleInfo* tail = NULL;
while ((sep = strchr(vmodule, '=')) != NULL) {
string pattern(vmodule, sep - vmodule);
int module_level;
if (sscanf(sep, "=%d", &module_level) == 1) {
VModuleInfo* info = new VModuleInfo;
info->module_pattern = pattern;
info->vlog_level = module_level;
if (head) tail->next = info;
else head = info;
tail = info;
}
// Skip past this entry
vmodule = strchr(sep, ',');
if (vmodule == NULL) break;
vmodule++; // Skip past ","
}
if (head) { // Put them into the list at the head:
tail->next = vmodule_list;
vmodule_list = head;
}
inited_vmodule = true;
}
// This can be called very early, so we use SpinLock and RAW_VLOG here.
int SetVLOGLevel(const char* module_pattern, int log_level) {
int result = FLAGS_v;
int const pattern_len = strlen(module_pattern);
bool found = false;
{
MutexLock l(&vmodule_lock); // protect whole read-modify-write
for (const VModuleInfo* info = vmodule_list;
info != NULL; info = info->next) {
if (info->module_pattern == module_pattern) {
if (!found) {
result = info->vlog_level;
found = true;
}
info->vlog_level = log_level;
} else if (!found &&
SafeFNMatch_(info->module_pattern.c_str(),
info->module_pattern.size(),
module_pattern, pattern_len)) {
result = info->vlog_level;
found = true;
}
}
if (!found) {
VModuleInfo* info = new VModuleInfo;
info->module_pattern = module_pattern;
info->vlog_level = log_level;
info->next = vmodule_list;
vmodule_list = info;
}
}
RAW_VLOG(1, "Set VLOG level for \"%s\" to %d", module_pattern, log_level);
return result;
}
// NOTE: Individual VLOG statements cache the integer log level pointers.
// NOTE: This function must not allocate memory or require any locks.
bool InitVLOG3__(int32** site_flag, int32* site_default,
const char* fname, int32 verbose_level) {
MutexLock l(&vmodule_lock);
bool read_vmodule_flag = inited_vmodule;
if (!read_vmodule_flag) {
VLOG2Initializer();
}
// protect the errno global in case someone writes:
// VLOG(..) << "The last error was " << strerror(errno)
int old_errno = errno;
// site_default normally points to FLAGS_v
int32* site_flag_value = site_default;
// Get basename for file
const char* base = strrchr(fname, '/');
base = base ? (base+1) : fname;
const char* base_end = strchr(base, '.');
size_t base_length = base_end ? size_t(base_end - base) : strlen(base);
// Trim out trailing "-inl" if any
if (base_length >= 4 && (memcmp(base+base_length-4, "-inl", 4) == 0)) {
base_length -= 4;
}
// TODO: Trim out _unittest suffix? Perhaps it is better to have
// the extra control and just leave it there.
// find target in vector of modules, replace site_flag_value with
// a module-specific verbose level, if any.
for (const VModuleInfo* info = vmodule_list;
info != NULL; info = info->next) {
if (SafeFNMatch_(info->module_pattern.c_str(), info->module_pattern.size(),
base, base_length)) {
site_flag_value = &info->vlog_level;
// value at info->vlog_level is now what controls
// the VLOG at the caller site forever
break;
}
}
// Cache the vlog value pointer if --vmodule flag has been parsed.
ANNOTATE_BENIGN_RACE(site_flag,
"*site_flag may be written by several threads,"
" but the value will be the same");
if (read_vmodule_flag) *site_flag = site_flag_value;
// restore the errno in case something recoverable went wrong during
// the initialization of the VLOG mechanism (see above note "protect the..")
errno = old_errno;
return *site_flag_value >= verbose_level;
}
_END_GOOGLE_NAMESPACE_

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/* src/config.h.in. Generated from configure.ac by autoheader. */
/* define if you have google gflags library */
#define HAVE_LIB_GFLAGS 1
/* Namespace for Google classes */
#define GOOGLE_NAMESPACE google
/* Stops putting the code inside the Google namespace */
#define _END_GOOGLE_NAMESPACE_ }
/* Puts following code inside the Google namespace */
#define _START_GOOGLE_NAMESPACE_ namespace google {
#if defined(__MINGW32__) || (defined(_MSC_VER) && (_MSC_VER >= 1900))
# define HAVE_SNPRINTF
#endif
/* Always the empty-string on non-windows systems. On windows, should be
"__declspec(dllexport)". This way, when we compile the dll, we export our
functions/classes. It's safe to define this here because config.h is only
used internally, to compile the DLL, and every DLL source file #includes
"config.h" before anything else. */
#ifndef GOOGLE_GLOG_DLL_DECL
# define GOOGLE_GLOG_IS_A_DLL 1 /* not set if you're statically linking */
# define GOOGLE_GLOG_DLL_DECL __declspec(dllexport)
# define GOOGLE_GLOG_DLL_DECL_FOR_UNITTESTS __declspec(dllimport)
#endif

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// This file is automatically generated from src/glog/log_severity.h
// using src/windows/preprocess.sh.
// DO NOT EDIT!
// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef BASE_LOG_SEVERITY_H__
#define BASE_LOG_SEVERITY_H__
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
// Variables of type LogSeverity are widely taken to lie in the range
// [0, NUM_SEVERITIES-1]. Be careful to preserve this assumption if
// you ever need to change their values or add a new severity.
typedef int LogSeverity;
const int GLOG_INFO = 0, GLOG_WARNING = 1, GLOG_ERROR = 2, GLOG_FATAL = 3,
NUM_SEVERITIES = 4;
#ifndef GLOG_NO_ABBREVIATED_SEVERITIES
# ifdef ERROR
# error ERROR macro is defined. Define GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
# endif
const int INFO = GLOG_INFO, WARNING = GLOG_WARNING,
ERROR = GLOG_ERROR, FATAL = GLOG_FATAL;
#endif
// DFATAL is FATAL in debug mode, ERROR in normal mode
#ifdef NDEBUG
#define DFATAL_LEVEL ERROR
#else
#define DFATAL_LEVEL FATAL
#endif
extern GOOGLE_GLOG_DLL_DECL const char* const LogSeverityNames[NUM_SEVERITIES];
// NDEBUG usage helpers related to (RAW_)DCHECK:
//
// DEBUG_MODE is for small !NDEBUG uses like
// if (DEBUG_MODE) foo.CheckThatFoo();
// instead of substantially more verbose
// #ifndef NDEBUG
// foo.CheckThatFoo();
// #endif
//
// IF_DEBUG_MODE is for small !NDEBUG uses like
// IF_DEBUG_MODE( string error; )
// DCHECK(Foo(&error)) << error;
// instead of substantially more verbose
// #ifndef NDEBUG
// string error;
// DCHECK(Foo(&error)) << error;
// #endif
//
#ifdef NDEBUG
enum { DEBUG_MODE = 0 };
#define IF_DEBUG_MODE(x)
#else
enum { DEBUG_MODE = 1 };
#define IF_DEBUG_MODE(x) x
#endif
#endif // BASE_LOG_SEVERITY_H__

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// This file is automatically generated from src/glog/raw_logging.h.in
// using src/windows/preprocess.sh.
// DO NOT EDIT!
// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Maxim Lifantsev
//
// Thread-safe logging routines that do not allocate any memory or
// acquire any locks, and can therefore be used by low-level memory
// allocation and synchronization code.
#ifndef BASE_RAW_LOGGING_H_
#define BASE_RAW_LOGGING_H_
#include <time.h>
namespace google {
#include "glog/log_severity.h"
#include "glog/vlog_is_on.h"
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
// This is similar to LOG(severity) << format... and VLOG(level) << format..,
// but
// * it is to be used ONLY by low-level modules that can't use normal LOG()
// * it is desiged to be a low-level logger that does not allocate any
// memory and does not need any locks, hence:
// * it logs straight and ONLY to STDERR w/o buffering
// * it uses an explicit format and arguments list
// * it will silently chop off really long message strings
// Usage example:
// RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
// RAW_VLOG(3, "status is %i", status);
// These will print an almost standard log lines like this to stderr only:
// E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
// I0821 211317 file.cc:142] RAW: status is 20
#define RAW_LOG(severity, ...) \
do { \
switch (google::GLOG_ ## severity) { \
case 0: \
RAW_LOG_INFO(__VA_ARGS__); \
break; \
case 1: \
RAW_LOG_WARNING(__VA_ARGS__); \
break; \
case 2: \
RAW_LOG_ERROR(__VA_ARGS__); \
break; \
case 3: \
RAW_LOG_FATAL(__VA_ARGS__); \
break; \
default: \
break; \
} \
} while (0)
// The following STRIP_LOG testing is performed in the header file so that it's
// possible to completely compile out the logging code and the log messages.
#if STRIP_LOG == 0
#define RAW_VLOG(verboselevel, ...) \
do { \
if (VLOG_IS_ON(verboselevel)) { \
RAW_LOG_INFO(__VA_ARGS__); \
} \
} while (0)
#else
#define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG == 0
#define RAW_LOG_INFO(...) google::RawLog__(google::GLOG_INFO, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG == 0
#if STRIP_LOG <= 1
#define RAW_LOG_WARNING(...) google::RawLog__(google::GLOG_WARNING, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 1
#if STRIP_LOG <= 2
#define RAW_LOG_ERROR(...) google::RawLog__(google::GLOG_ERROR, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
#endif // STRIP_LOG <= 2
#if STRIP_LOG <= 3
#define RAW_LOG_FATAL(...) google::RawLog__(google::GLOG_FATAL, \
__FILE__, __LINE__, __VA_ARGS__)
#else
#define RAW_LOG_FATAL(...) \
do { \
google::RawLogStub__(0, __VA_ARGS__); \
exit(1); \
} while (0)
#endif // STRIP_LOG <= 3
// Similar to CHECK(condition) << message,
// but for low-level modules: we use only RAW_LOG that does not allocate memory.
// We do not want to provide args list here to encourage this usage:
// if (!cond) RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
// so that the args are not computed when not needed.
#define RAW_CHECK(condition, message) \
do { \
if (!(condition)) { \
RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
} \
} while (0)
// Debug versions of RAW_LOG and RAW_CHECK
#ifndef NDEBUG
#define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
#else // NDEBUG
#define RAW_DLOG(severity, ...) \
while (false) \
RAW_LOG(severity, __VA_ARGS__)
#define RAW_DCHECK(condition, message) \
while (false) \
RAW_CHECK(condition, message)
#endif // NDEBUG
// Stub log function used to work around for unused variable warnings when
// building with STRIP_LOG > 0.
static inline void RawLogStub__(int /* ignored */, ...) {
}
// Helper function to implement RAW_LOG and RAW_VLOG
// Logs format... at "severity" level, reporting it
// as called from file:line.
// This does not allocate memory or acquire locks.
GOOGLE_GLOG_DLL_DECL void RawLog__(LogSeverity severity,
const char* file,
int line,
const char* format, ...)
;
}
#endif // BASE_RAW_LOGGING_H_

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// This file is automatically generated from src/glog/stl_logging.h.in
// using src/windows/preprocess.sh.
// DO NOT EDIT!
// Copyright (c) 2003, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Stream output operators for STL containers; to be used for logging *only*.
// Inclusion of this file lets you do:
//
// list<string> x;
// LOG(INFO) << "data: " << x;
// vector<int> v1, v2;
// CHECK_EQ(v1, v2);
//
// If you want to use this header file with hash_compare maps or slist, you
// need to define macros before including this file:
//
// - GLOG_STL_LOGGING_FOR_UNORDERED - <unordered_map> and <unordered_set>
// - GLOG_STL_LOGGING_FOR_TR1_UNORDERED - <tr1/unordered_(map|set)>
// - GLOG_STL_LOGGING_FOR_EXT_HASH - <ext/hash_(map|set)>
// - GLOG_STL_LOGGING_FOR_EXT_SLIST - <ext/slist>
//
#ifndef UTIL_GTL_STL_LOGGING_INL_H_
#define UTIL_GTL_STL_LOGGING_INL_H_
#if !1
# error We do not support stl_logging for this compiler
#endif
#include <deque>
#include <list>
#include <map>
#include <ostream>
#include <set>
#include <utility>
#include <vector>
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
# include <unordered_map>
# include <unordered_set>
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
# include <tr1/unordered_map>
# include <tr1/unordered_set>
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
# include <ext/hash_set>
# include <ext/hash_map>
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
# include <ext/slist>
#endif
// Forward declare these two, and define them after all the container streams
// operators so that we can recurse from pair -> container -> container -> pair
// properly.
template<class First, class Second>
std::ostream& operator<<(std::ostream& out, const std::pair<First, Second>& p);
namespace google {
template<class Iter>
void PrintSequence(std::ostream& out, Iter begin, Iter end);
}
#define OUTPUT_TWO_ARG_CONTAINER(Sequence) \
template<class T1, class T2> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_TWO_ARG_CONTAINER(std::vector)
OUTPUT_TWO_ARG_CONTAINER(std::deque)
OUTPUT_TWO_ARG_CONTAINER(std::list)
#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
OUTPUT_TWO_ARG_CONTAINER(__gnu_cxx::slist)
#endif
#undef OUTPUT_TWO_ARG_CONTAINER
#define OUTPUT_THREE_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_THREE_ARG_CONTAINER(std::set)
OUTPUT_THREE_ARG_CONTAINER(std::multiset)
#undef OUTPUT_THREE_ARG_CONTAINER
#define OUTPUT_FOUR_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3, class T4> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3, T4>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
OUTPUT_FOUR_ARG_CONTAINER(std::map)
OUTPUT_FOUR_ARG_CONTAINER(std::multimap)
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
OUTPUT_FOUR_ARG_CONTAINER(std::unordered_set)
OUTPUT_FOUR_ARG_CONTAINER(std::unordered_multiset)
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_set)
OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_multiset)
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_set)
OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_multiset)
#endif
#undef OUTPUT_FOUR_ARG_CONTAINER
#define OUTPUT_FIVE_ARG_CONTAINER(Sequence) \
template<class T1, class T2, class T3, class T4, class T5> \
inline std::ostream& operator<<(std::ostream& out, \
const Sequence<T1, T2, T3, T4, T5>& seq) { \
google::PrintSequence(out, seq.begin(), seq.end()); \
return out; \
}
#ifdef GLOG_STL_LOGGING_FOR_UNORDERED
OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
#endif
#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_map)
OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_multimap)
#endif
#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_map)
OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_multimap)
#endif
#undef OUTPUT_FIVE_ARG_CONTAINER
template<class First, class Second>
inline std::ostream& operator<<(std::ostream& out,
const std::pair<First, Second>& p) {
out << '(' << p.first << ", " << p.second << ')';
return out;
}
namespace google {
template<class Iter>
inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
// Output at most 100 elements -- appropriate if used for logging.
for (int i = 0; begin != end && i < 100; ++i, ++begin) {
if (i > 0) out << ' ';
out << *begin;
}
if (begin != end) {
out << " ...";
}
}
}
// Note that this is technically undefined behavior! We are adding things into
// the std namespace for a reason though -- we are providing new operations on
// types which are themselves defined with this namespace. Without this, these
// operator overloads cannot be found via ADL. If these definitions are not
// found via ADL, they must be #included before they're used, which requires
// this header to be included before apparently independent other headers.
//
// For example, base/logging.h defines various template functions to implement
// CHECK_EQ(x, y) and stream x and y into the log in the event the check fails.
// It does so via the function template MakeCheckOpValueString:
// template<class T>
// void MakeCheckOpValueString(strstream* ss, const T& v) {
// (*ss) << v;
// }
// Because 'glog/logging.h' is included before 'glog/stl_logging.h',
// subsequent CHECK_EQ(v1, v2) for vector<...> typed variable v1 and v2 can only
// find these operator definitions via ADL.
//
// Even this solution has problems -- it may pull unintended operators into the
// namespace as well, allowing them to also be found via ADL, and creating code
// that only works with a particular order of includes. Long term, we need to
// move all of the *definitions* into namespace std, bet we need to ensure no
// one references them first. This lets us take that step. We cannot define them
// in both because that would create ambiguous overloads when both are found.
namespace std { using ::operator<<; }
#endif // UTIL_GTL_STL_LOGGING_INL_H_

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// This file is automatically generated from src/glog/vlog_is_on.h.in
// using src/windows/preprocess.sh.
// DO NOT EDIT!
// Copyright (c) 1999, 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Ray Sidney and many others
//
// Defines the VLOG_IS_ON macro that controls the variable-verbosity
// conditional logging.
//
// It's used by VLOG and VLOG_IF in logging.h
// and by RAW_VLOG in raw_logging.h to trigger the logging.
//
// It can also be used directly e.g. like this:
// if (VLOG_IS_ON(2)) {
// // do some logging preparation and logging
// // that can't be accomplished e.g. via just VLOG(2) << ...;
// }
//
// The truth value that VLOG_IS_ON(level) returns is determined by
// the three verbosity level flags:
// --v=<n> Gives the default maximal active V-logging level;
// 0 is the default.
// Normally positive values are used for V-logging levels.
// --vmodule=<str> Gives the per-module maximal V-logging levels to override
// the value given by --v.
// E.g. "my_module=2,foo*=3" would change the logging level
// for all code in source files "my_module.*" and "foo*.*"
// ("-inl" suffixes are also disregarded for this matching).
//
// SetVLOGLevel helper function is provided to do limited dynamic control over
// V-logging by overriding the per-module settings given via --vmodule flag.
//
// CAVEAT: --vmodule functionality is not available in non gcc compilers.
//
#ifndef BASE_VLOG_IS_ON_H_
#define BASE_VLOG_IS_ON_H_
#include "glog/log_severity.h"
// Annoying stuff for windows -- makes sure clients can import these functions
#ifndef GOOGLE_GLOG_DLL_DECL
# if defined(_WIN32) && !defined(__CYGWIN__)
# define GOOGLE_GLOG_DLL_DECL __declspec(dllimport)
# else
# define GOOGLE_GLOG_DLL_DECL
# endif
#endif
#if defined(__GNUC__)
// We emit an anonymous static int* variable at every VLOG_IS_ON(n) site.
// (Normally) the first time every VLOG_IS_ON(n) site is hit,
// we determine what variable will dynamically control logging at this site:
// it's either FLAGS_v or an appropriate internal variable
// matching the current source file that represents results of
// parsing of --vmodule flag and/or SetVLOGLevel calls.
#define VLOG_IS_ON(verboselevel) \
__extension__ \
({ static google::int32* vlocal__ = &google::kLogSiteUninitialized; \
google::int32 verbose_level__ = (verboselevel); \
(*vlocal__ >= verbose_level__) && \
((vlocal__ != &google::kLogSiteUninitialized) || \
(google::InitVLOG3__(&vlocal__, &FLAGS_v, \
__FILE__, verbose_level__))); })
#else
// GNU extensions not available, so we do not support --vmodule.
// Dynamic value of FLAGS_v always controls the logging level.
#define VLOG_IS_ON(verboselevel) (FLAGS_v >= (verboselevel))
#endif
// Set VLOG(_IS_ON) level for module_pattern to log_level.
// This lets us dynamically control what is normally set by the --vmodule flag.
// Returns the level that previously applied to module_pattern.
// NOTE: To change the log level for VLOG(_IS_ON) sites
// that have already executed after/during InitGoogleLogging,
// one needs to supply the exact --vmodule pattern that applied to them.
// (If no --vmodule pattern applied to them
// the value of FLAGS_v will continue to control them.)
extern GOOGLE_GLOG_DLL_DECL int SetVLOGLevel(const char* module_pattern,
int log_level);
// Various declarations needed for VLOG_IS_ON above: =========================
// Special value used to indicate that a VLOG_IS_ON site has not been
// initialized. We make this a large value, so the common-case check
// of "*vlocal__ >= verbose_level__" in VLOG_IS_ON definition
// passes in such cases and InitVLOG3__ is then triggered.
extern google::int32 kLogSiteUninitialized;
// Helper routine which determines the logging info for a particalur VLOG site.
// site_flag is the address of the site-local pointer to the controlling
// verbosity level
// site_default is the default to use for *site_flag
// fname is the current source file name
// verbose_level is the argument to VLOG_IS_ON
// We will return the return value for VLOG_IS_ON
// and if possible set *site_flag appropriately.
extern GOOGLE_GLOG_DLL_DECL bool InitVLOG3__(
google::int32** site_flag,
google::int32* site_default,
const char* fname,
google::int32 verbose_level);
#endif // BASE_VLOG_IS_ON_H_

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blender-5.2.0/extern/glog/src/windows/port.cc vendored Normal file
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/* Copyright (c) 2008, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ---
* Author: Craig Silverstein
* Copied from google-perftools and modified by Shinichiro Hamaji
*/
#ifndef _WIN32
# error You should only be including windows/port.cc in a windows environment!
#endif
#include "config.h"
#include <stdarg.h> // for va_list, va_start, va_end
#include "port.h"
// These call the windows _vsnprintf, but always NUL-terminate.
int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
if (size == 0) // not even room for a \0?
return -1; // not what C99 says to do, but what windows does
str[size-1] = '\0';
return _vsnprintf(str, size-1, format, ap);
}
#ifndef HAVE_LOCALTIME_R
struct tm* localtime_r(const time_t* timep, struct tm* result) {
localtime_s(result, timep);
return result;
}
#endif // not HAVE_LOCALTIME_R
#ifndef HAVE_SNPRINTF
int snprintf(char *str, size_t size, const char *format, ...) {
va_list ap;
va_start(ap, format);
const int r = vsnprintf(str, size, format, ap);
va_end(ap);
return r;
}
#endif

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blender-5.2.0/extern/glog/src/windows/port.h vendored Normal file
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/* Copyright (c) 2008, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ---
* Author: Craig Silverstein
* Copied from google-perftools and modified by Shinichiro Hamaji
*
* These are some portability typedefs and defines to make it a bit
* easier to compile this code under VC++.
*
* Several of these are taken from glib:
* http://developer.gnome.org/doc/API/glib/glib-windows-compatability-functions.html
*/
#ifndef CTEMPLATE_WINDOWS_PORT_H_
#define CTEMPLATE_WINDOWS_PORT_H_
#include "config.h"
#ifdef _WIN32
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN /* We always want minimal includes */
#endif
#include <windows.h>
#include <winsock.h> /* for gethostname */
#include <io.h> /* because we so often use open/close/etc */
#include <direct.h> /* for _getcwd() */
#include <process.h> /* for _getpid() */
#include <stdio.h> /* read in vsnprintf decl. before redifining it */
#include <stdarg.h> /* template_dictionary.cc uses va_copy */
#include <string.h> /* for _strnicmp(), strerror_s() */
#include <time.h> /* for localtime_s() */
/* Note: the C++ #includes are all together at the bottom. This file is
* used by both C and C++ code, so we put all the C++ together.
*/
#ifdef _MSC_VER
/* 4244: otherwise we get problems when substracting two size_t's to an int
* 4251: it's complaining about a private struct I've chosen not to dllexport
* 4355: we use this in a constructor, but we do it safely
* 4715: for some reason VC++ stopped realizing you can't return after abort()
* 4800: we know we're casting ints/char*'s to bools, and we're ok with that
* 4996: Yes, we're ok using "unsafe" functions like fopen() and strerror()
* 4312: Converting uint32_t to a pointer when testing %p
* 4267: also subtracting two size_t to int
* 4722: Destructor never returns due to abort()
*/
#pragma warning(disable:4244 4251 4355 4715 4800 4996 4267 4312 4722)
/* file I/O */
#define PATH_MAX 1024
#define access _access
#define getcwd _getcwd
#define open _open
#define read _read
#define write _write
#define lseek _lseek
#define close _close
#define popen _popen
#define pclose _pclose
#define R_OK 04 /* read-only (for access()) */
#define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
#define O_WRONLY _O_WRONLY
#define O_CREAT _O_CREAT
#define O_EXCL _O_EXCL
#ifndef __MINGW32__
enum { STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2 };
#endif
#define S_IRUSR S_IREAD
#define S_IWUSR S_IWRITE
/* Not quite as lightweight as a hard-link, but more than good enough for us. */
#define link(oldpath, newpath) CopyFileA(oldpath, newpath, false)
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
/* In windows-land, hash<> is called hash_compare<> (from xhash.h) */
/* VC11 provides std::hash */
#if defined(_MSC_VER) && (_MSC_VER < 1700)
#define hash hash_compare
#endif
/* Sleep is in ms, on windows */
#define sleep(secs) Sleep((secs) * 1000)
/* We can't just use _vsnprintf and _snprintf as drop-in-replacements,
* because they don't always NUL-terminate. :-( We also can't use the
* name vsnprintf, since windows defines that (but not snprintf (!)).
*/
#ifndef HAVE_SNPRINTF
extern int GOOGLE_GLOG_DLL_DECL snprintf(char *str, size_t size,
const char *format, ...);
#endif
extern int GOOGLE_GLOG_DLL_DECL safe_vsnprintf(char *str, size_t size,
const char *format, va_list ap);
#define vsnprintf(str, size, format, ap) safe_vsnprintf(str, size, format, ap)
#ifndef va_copy
#define va_copy(dst, src) (dst) = (src)
#endif
/* Windows doesn't support specifying the number of buckets as a
* hash_map constructor arg, so we leave this blank.
*/
#define CTEMPLATE_SMALL_HASHTABLE
#define DEFAULT_TEMPLATE_ROOTDIR ".."
// ----------------------------------- SYSTEM/PROCESS
typedef int pid_t;
#define getpid _getpid
#endif // _MSC_VER
// ----------------------------------- THREADS
#if defined(HAVE_PTHREAD)
# include <pthread.h>
#else // no PTHREAD
typedef DWORD pthread_t;
typedef DWORD pthread_key_t;
typedef LONG pthread_once_t;
enum { PTHREAD_ONCE_INIT = 0 }; // important that this be 0! for SpinLock
#define pthread_self GetCurrentThreadId
#define pthread_equal(pthread_t_1, pthread_t_2) ((pthread_t_1)==(pthread_t_2))
#endif // HAVE_PTHREAD
#ifndef HAVE_LOCALTIME_R
extern GOOGLE_GLOG_DLL_DECL struct tm* localtime_r(const time_t* timep, struct tm* result);
#endif // not HAVE_LOCALTIME_R
inline char* strerror_r(int errnum, char* buf, size_t buflen) {
strerror_s(buf, buflen, errnum);
return buf;
}
#ifndef __cplusplus
/* I don't see how to get inlining for C code in MSVC. Ah well. */
#define inline
#endif
#endif /* _WIN32 */
#endif /* CTEMPLATE_WINDOWS_PORT_H_ */

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#!/bin/sh
# Copyright (c) 2008, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ---
# Author: Craig Silverstein
# Copied from google-perftools and modified by Shinichiro Hamaji
#
# This script is meant to be run at distribution-generation time, for
# instance by autogen.sh. It does some of the work configure would
# normally do, for windows systems. In particular, it expands all the
# @...@ variables found in .in files, and puts them here, in the windows
# directory.
#
# This script should be run before any new release.
if [ -z "$1" ]; then
echo "USAGE: $0 <src/ directory>"
exit 1
fi
DLLDEF_MACRO_NAME="GLOG_DLL_DECL"
# The text we put in every .h files we create. As a courtesy, we'll
# include a helpful comment for windows users as to how to use
# GLOG_DLL_DECL. Apparently sed expands \n into a newline. Good!
DLLDEF_DEFINES="\
// NOTE: if you are statically linking the template library into your binary\n\
// (rather than using the template .dll), set '/D $DLLDEF_MACRO_NAME='\n\
// as a compiler flag in your project file to turn off the dllimports.\n\
#ifndef $DLLDEF_MACRO_NAME\n\
# define $DLLDEF_MACRO_NAME __declspec(dllimport)\n\
#endif"
# Read all the windows config info into variables
# In order for the 'set' to take, this requires putting all in a subshell.
(
while read define varname value; do
[ "$define" != "#define" ] && continue
eval "$varname='$value'"
done
# Process all the .in files in the "glog" subdirectory
mkdir -p "$1/windows/glog"
for file in `echo "$1"/glog/*.in`; do
echo "Processing $file"
outfile="$1/windows/glog/`basename $file .in`"
echo "\
// This file is automatically generated from $file
// using src/windows/preprocess.sh.
// DO NOT EDIT!
" > "$outfile"
# Besides replacing @...@, we also need to turn on dllimport
# We also need to replace hash by hash_compare (annoying we hard-code :-( )
sed -e "s!@ac_windows_dllexport@!$DLLDEF_MACRO_NAME!g" \
-e "s!@ac_windows_dllexport_defines@!$DLLDEF_DEFINES!g" \
-e "s!@ac_cv_cxx_hash_map@!$HASH_MAP_H!g" \
-e "s!@ac_cv_cxx_hash_namespace@!$HASH_NAMESPACE!g" \
-e "s!@ac_cv_cxx_hash_set@!$HASH_SET_H!g" \
-e "s!@ac_cv_have_stdint_h@!0!g" \
-e "s!@ac_cv_have_systypes_h@!0!g" \
-e "s!@ac_cv_have_inttypes_h@!0!g" \
-e "s!@ac_cv_have_unistd_h@!0!g" \
-e "s!@ac_cv_have_uint16_t@!0!g" \
-e "s!@ac_cv_have_u_int16_t@!0!g" \
-e "s!@ac_cv_have___uint16@!1!g" \
-e "s!@ac_cv_have_libgflags@!0!g" \
-e "s!@ac_cv_have___builtin_expect@!0!g" \
-e "s!@ac_cv_cxx_using_operator@!1!g" \
-e "s!@ac_cv___attribute___noreturn@!__declspec(noreturn)!g" \
-e "s!@ac_cv___attribute___noinline@!!g" \
-e "s!@ac_cv___attribute___printf_4_5@!!g" \
-e "s!@ac_google_attribute@!${HAVE___ATTRIBUTE__:-0}!g" \
-e "s!@ac_google_end_namespace@!$_END_GOOGLE_NAMESPACE_!g" \
-e "s!@ac_google_namespace@!$GOOGLE_NAMESPACE!g" \
-e "s!@ac_google_start_namespace@!$_START_GOOGLE_NAMESPACE_!g" \
-e "s!@ac_htmlparser_namespace@!$HTMLPARSER_NAMESPACE!g" \
-e "s!\\bhash\\b!hash_compare!g" \
"$file" >> "$outfile"
done
) < "$1/windows/config.h"
# log_severity.h isn't a .in file.
echo "\
// This file is automatically generated from $1/glog/log_severity.h
// using src/windows/preprocess.sh.
// DO NOT EDIT!
" > "$1/windows/glog/log_severity.h"
cat "$1/glog/log_severity.h" >> "$1/windows/glog/log_severity.h"
echo "DONE"