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locks; strict; comment @// @; 1.1 date 2013.02.23.12.34.06; author jmmv; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 2013.02.23.12.34.06; author jmmv; state Exp; branches 1.1.1.1.4.1 1.1.1.1.12.1; next ; 1.1.1.1.4.1 date 2013.02.23.12.34.06; author tls; state dead; branches; next 1.1.1.1.4.2; 1.1.1.1.4.2 date 2013.02.25.00.26.14; author tls; state Exp; branches; next ; 1.1.1.1.12.1 date 2013.02.23.12.34.06; author yamt; state dead; branches; next 1.1.1.1.12.2; commitid h3iiOYJJCkPr7yBx; 1.1.1.1.12.2 date 2014.05.22.15.45.29; author yamt; state Exp; branches; next ; commitid h3iiOYJJCkPr7yBx; desc @@ 1.1 log @Initial revision @ text @// Copyright 2010 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. #include "utils/sanity.hpp" #if defined(HAVE_CONFIG_H) #include "config.h" #endif extern "C" { #include #include } #include #include #include #include #include "utils/format/macros.hpp" #include "utils/logging/macros.hpp" namespace { /// List of fatal signals to be intercepted by the sanity code. /// /// The tests hardcode this list; update them whenever the list gets updated. static int fatal_signals[] = { SIGABRT, SIGBUS, SIGSEGV, 0 }; /// The path to the log file to report on crashes. Be aware that this is empty /// until install_crash_handlers() is called. static std::string logfile; /// Prints a message to stderr. /// /// Note that this runs from a signal handler. Calling write() is OK. /// /// \param message The message to print. static void err_write(const std::string& message) { if (::write(STDERR_FILENO, message.c_str(), message.length()) == -1) { // We are crashing. If ::write fails, there is not much we could do, // specially considering that we are running within a signal handler. // Just ignore the error. } } /// The crash handler for fatal signals. /// /// The sole purpose of this is to print some informational data before /// reraising the original signal. /// /// \param signo The received signal. static void crash_handler(const int signo) { PRE(!logfile.empty()); err_write(F("*** Fatal signal %s received\n") % signo); err_write(F("*** Log file is %s\n") % logfile); err_write(F("*** Please report this problem to %s detailing what you were " "doing before the crash happened; if possible, include the log " "file mentioned above\n") % PACKAGE_BUGREPORT); /// The handler is installed with SA_RESETHAND, so this is safe to do. We /// really want to call the default handler to generate any possible core /// dumps. ::kill(::getpid(), signo); } /// Installs a handler for a fatal signal representing a crash. /// /// When the specified signal is captured, the crash_handler() will be called to /// print some informational details to the user and, later, the signal will be /// redelivered using the default handler to obtain a core dump. /// /// \param signo The fatal signal for which to install a handler. static void install_one_crash_handler(const int signo) { struct ::sigaction sa; sa.sa_handler = crash_handler; sigemptyset(&sa.sa_mask); sa.sa_flags = SA_RESETHAND; if (::sigaction(signo, &sa, NULL) == -1) { const int original_errno = errno; LW(F("Could not install crash handler for signal %s: %s") % signo % std::strerror(original_errno)); } else LD(F("Installed crash handler for signal %s") % signo); } /// Returns a textual representation of an assertion type. /// /// The textual representation is user facing. /// /// \param type The type of the assertion. If the type is unknown for whatever /// reason, a special message is returned. The code cannot abort in such a /// case because this code is dealing for assertion errors. /// /// \return A textual description of the assertion type. static std::string format_type(const utils::assert_type type) { switch (type) { case utils::invariant: return "Invariant check failed"; case utils::postcondition: return "Postcondition check failed"; case utils::precondition: return "Precondition check failed"; case utils::unreachable: return "Unreachable point reached"; default: return "UNKNOWN ASSERTION TYPE"; } } } // anonymous namespace /// Raises an assertion error. /// /// This function prints information about the assertion failure and terminates /// execution immediately by calling std::abort(). This ensures a coredump so /// that the failure can be analyzed later. /// /// \param type The assertion type; this influences the printed message. /// \param file The file in which the assertion failed. /// \param line The line in which the assertion failed. /// \param message The failure message associated to the condition. void utils::sanity_failure(const assert_type type, const char* file, const size_t line, const std::string& message) { std::cerr << "*** " << file << ":" << line << ": " << format_type(type); if (!message.empty()) std::cerr << ": " << message << "\n"; else std::cerr << "\n"; std::abort(); } /// Installs persistent handlers for crash signals. /// /// Should be called at the very beginning of the execution of the program to /// ensure that a signal handler for fatal crash signals is installed. /// /// \pre The function has not been called before. /// /// \param logfile_ The path to the log file to report during a crash. void utils::install_crash_handlers(const std::string& logfile_) { static bool installed = false; PRE(!installed); logfile = logfile_; for (const int* iter = &fatal_signals[0]; *iter != 0; iter++) install_one_crash_handler(*iter); installed = true; } @ 1.1.1.1 log @Initial import of Kyua CLI, version 0.6: This is the main component of Kyua and its build will be guarded by the MKKYUA knob. core@@ has approved this import. Description: Kyua (pronounced Q.A.) is a testing framework for both developers and users. Kyua is different from most other testing frameworks in that it puts the end user experience before anything else. There are multiple reasons for users to run the tests themselves, and Kyua ensures that they can do so in the most convenient way. This module, kyua-cli, provides the command-line interface to the Kyua runtime system. The major purpose of this tool is to run test cases and generate unified reports for their results. @ text @@ 1.1.1.1.12.1 log @file sanity.cpp was added on branch yamt-pagecache on 2014-05-22 15:45:29 +0000 @ text @d1 194 @ 1.1.1.1.12.2 log @sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments") @ text @a0 194 // Copyright 2010 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. #include "utils/sanity.hpp" #if defined(HAVE_CONFIG_H) #include "config.h" #endif extern "C" { #include #include } #include #include #include #include #include "utils/format/macros.hpp" #include "utils/logging/macros.hpp" namespace { /// List of fatal signals to be intercepted by the sanity code. /// /// The tests hardcode this list; update them whenever the list gets updated. static int fatal_signals[] = { SIGABRT, SIGBUS, SIGSEGV, 0 }; /// The path to the log file to report on crashes. Be aware that this is empty /// until install_crash_handlers() is called. static std::string logfile; /// Prints a message to stderr. /// /// Note that this runs from a signal handler. Calling write() is OK. /// /// \param message The message to print. static void err_write(const std::string& message) { if (::write(STDERR_FILENO, message.c_str(), message.length()) == -1) { // We are crashing. If ::write fails, there is not much we could do, // specially considering that we are running within a signal handler. // Just ignore the error. } } /// The crash handler for fatal signals. /// /// The sole purpose of this is to print some informational data before /// reraising the original signal. /// /// \param signo The received signal. static void crash_handler(const int signo) { PRE(!logfile.empty()); err_write(F("*** Fatal signal %s received\n") % signo); err_write(F("*** Log file is %s\n") % logfile); err_write(F("*** Please report this problem to %s detailing what you were " "doing before the crash happened; if possible, include the log " "file mentioned above\n") % PACKAGE_BUGREPORT); /// The handler is installed with SA_RESETHAND, so this is safe to do. We /// really want to call the default handler to generate any possible core /// dumps. ::kill(::getpid(), signo); } /// Installs a handler for a fatal signal representing a crash. /// /// When the specified signal is captured, the crash_handler() will be called to /// print some informational details to the user and, later, the signal will be /// redelivered using the default handler to obtain a core dump. /// /// \param signo The fatal signal for which to install a handler. static void install_one_crash_handler(const int signo) { struct ::sigaction sa; sa.sa_handler = crash_handler; sigemptyset(&sa.sa_mask); sa.sa_flags = SA_RESETHAND; if (::sigaction(signo, &sa, NULL) == -1) { const int original_errno = errno; LW(F("Could not install crash handler for signal %s: %s") % signo % std::strerror(original_errno)); } else LD(F("Installed crash handler for signal %s") % signo); } /// Returns a textual representation of an assertion type. /// /// The textual representation is user facing. /// /// \param type The type of the assertion. If the type is unknown for whatever /// reason, a special message is returned. The code cannot abort in such a /// case because this code is dealing for assertion errors. /// /// \return A textual description of the assertion type. static std::string format_type(const utils::assert_type type) { switch (type) { case utils::invariant: return "Invariant check failed"; case utils::postcondition: return "Postcondition check failed"; case utils::precondition: return "Precondition check failed"; case utils::unreachable: return "Unreachable point reached"; default: return "UNKNOWN ASSERTION TYPE"; } } } // anonymous namespace /// Raises an assertion error. /// /// This function prints information about the assertion failure and terminates /// execution immediately by calling std::abort(). This ensures a coredump so /// that the failure can be analyzed later. /// /// \param type The assertion type; this influences the printed message. /// \param file The file in which the assertion failed. /// \param line The line in which the assertion failed. /// \param message The failure message associated to the condition. void utils::sanity_failure(const assert_type type, const char* file, const size_t line, const std::string& message) { std::cerr << "*** " << file << ":" << line << ": " << format_type(type); if (!message.empty()) std::cerr << ": " << message << "\n"; else std::cerr << "\n"; std::abort(); } /// Installs persistent handlers for crash signals. /// /// Should be called at the very beginning of the execution of the program to /// ensure that a signal handler for fatal crash signals is installed. /// /// \pre The function has not been called before. /// /// \param logfile_ The path to the log file to report during a crash. void utils::install_crash_handlers(const std::string& logfile_) { static bool installed = false; PRE(!installed); logfile = logfile_; for (const int* iter = &fatal_signals[0]; *iter != 0; iter++) install_one_crash_handler(*iter); installed = true; } @ 1.1.1.1.4.1 log @file sanity.cpp was added on branch tls-maxphys on 2013-02-25 00:26:14 +0000 @ text @d1 194 @ 1.1.1.1.4.2 log @resync with head @ text @a0 194 // Copyright 2010 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. #include "utils/sanity.hpp" #if defined(HAVE_CONFIG_H) #include "config.h" #endif extern "C" { #include #include } #include #include #include #include #include "utils/format/macros.hpp" #include "utils/logging/macros.hpp" namespace { /// List of fatal signals to be intercepted by the sanity code. /// /// The tests hardcode this list; update them whenever the list gets updated. static int fatal_signals[] = { SIGABRT, SIGBUS, SIGSEGV, 0 }; /// The path to the log file to report on crashes. Be aware that this is empty /// until install_crash_handlers() is called. static std::string logfile; /// Prints a message to stderr. /// /// Note that this runs from a signal handler. Calling write() is OK. /// /// \param message The message to print. static void err_write(const std::string& message) { if (::write(STDERR_FILENO, message.c_str(), message.length()) == -1) { // We are crashing. If ::write fails, there is not much we could do, // specially considering that we are running within a signal handler. // Just ignore the error. } } /// The crash handler for fatal signals. /// /// The sole purpose of this is to print some informational data before /// reraising the original signal. /// /// \param signo The received signal. static void crash_handler(const int signo) { PRE(!logfile.empty()); err_write(F("*** Fatal signal %s received\n") % signo); err_write(F("*** Log file is %s\n") % logfile); err_write(F("*** Please report this problem to %s detailing what you were " "doing before the crash happened; if possible, include the log " "file mentioned above\n") % PACKAGE_BUGREPORT); /// The handler is installed with SA_RESETHAND, so this is safe to do. We /// really want to call the default handler to generate any possible core /// dumps. ::kill(::getpid(), signo); } /// Installs a handler for a fatal signal representing a crash. /// /// When the specified signal is captured, the crash_handler() will be called to /// print some informational details to the user and, later, the signal will be /// redelivered using the default handler to obtain a core dump. /// /// \param signo The fatal signal for which to install a handler. static void install_one_crash_handler(const int signo) { struct ::sigaction sa; sa.sa_handler = crash_handler; sigemptyset(&sa.sa_mask); sa.sa_flags = SA_RESETHAND; if (::sigaction(signo, &sa, NULL) == -1) { const int original_errno = errno; LW(F("Could not install crash handler for signal %s: %s") % signo % std::strerror(original_errno)); } else LD(F("Installed crash handler for signal %s") % signo); } /// Returns a textual representation of an assertion type. /// /// The textual representation is user facing. /// /// \param type The type of the assertion. If the type is unknown for whatever /// reason, a special message is returned. The code cannot abort in such a /// case because this code is dealing for assertion errors. /// /// \return A textual description of the assertion type. static std::string format_type(const utils::assert_type type) { switch (type) { case utils::invariant: return "Invariant check failed"; case utils::postcondition: return "Postcondition check failed"; case utils::precondition: return "Precondition check failed"; case utils::unreachable: return "Unreachable point reached"; default: return "UNKNOWN ASSERTION TYPE"; } } } // anonymous namespace /// Raises an assertion error. /// /// This function prints information about the assertion failure and terminates /// execution immediately by calling std::abort(). This ensures a coredump so /// that the failure can be analyzed later. /// /// \param type The assertion type; this influences the printed message. /// \param file The file in which the assertion failed. /// \param line The line in which the assertion failed. /// \param message The failure message associated to the condition. void utils::sanity_failure(const assert_type type, const char* file, const size_t line, const std::string& message) { std::cerr << "*** " << file << ":" << line << ": " << format_type(type); if (!message.empty()) std::cerr << ": " << message << "\n"; else std::cerr << "\n"; std::abort(); } /// Installs persistent handlers for crash signals. /// /// Should be called at the very beginning of the execution of the program to /// ensure that a signal handler for fatal crash signals is installed. /// /// \pre The function has not been called before. /// /// \param logfile_ The path to the log file to report during a crash. void utils::install_crash_handlers(const std::string& logfile_) { static bool installed = false; PRE(!installed); logfile = logfile_; for (const int* iter = &fatal_signals[0]; *iter != 0; iter++) install_one_crash_handler(*iter); installed = true; } @