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aka_error.cc
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			/**
			* @file aka_error.cc
			*
			* @author Nicolas Richart <nicolas.richart@epfl.ch>
			*
			* @date creation: Mon Sep 06 2010
			* @date last modification: Tue Jan 19 2016
			*
			* @brief handling of errors
			*
			* @section LICENSE
			*
			* Copyright (©) 2010-2012, 2014, 2015 EPFL (Ecole Polytechnique Fédérale de
			* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
			* Solides)
			*
			* Akantu is free software: you can redistribute it and/or modify it under the
			* terms of the GNU Lesser General Public License as published by the Free
			* Software Foundation, either version 3 of the License, or (at your option) any
			* later version.
			*
			* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
			* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
			* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
			* details.
			*
			* You should have received a copy of the GNU Lesser General Public License
			* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
			*
			*/

			/* -------------------------------------------------------------------------- */
			#include "aka_config.hh"
			#include "aka_error.hh"
			#include "aka_common.hh"
			/* -------------------------------------------------------------------------- */
			#include <iostream>
			#include <csignal>

			#if (defined(READLINK_COMMAND) \|\| defined(ADDR2LINE_COMMAND)) && \
			(not defined(_WIN32))
			#include <execinfo.h>
			#include <sys/wait.h>
			#endif

			#include <cxxabi.h>
			#include <fstream>
			#include <iomanip>
			#include <cmath>
			#include <cstring>
			#include <map>
			#include <sys/types.h>
			#include <unistd.h>

			#if defined(AKANTU_USE_OBSOLETE_GETTIMEOFDAY)
			#include <sys/time.h>
			#else
			#include <time.h>
			#endif

			#ifdef AKANTU_USE_MPI
			#include <mpi.h>
			#endif

			#define __BEGIN_AKANTU_DEBUG__ \
			namespace akantu { \
			namespace debug {
			#define __END_AKANTU_DEBUG__ \
			} \
			}

			/* -------------------------------------------------------------------------- */

			__BEGIN_AKANTU_DEBUG__

			static void printBacktraceAndExit(int sig) {
			if (debugger.printBacktrace())
			printBacktrace(sig);
			debugger.exit(-50);
			}

			/* ------------------------------------------------------------------------ */
			void initSignalHandler() {
			std::signal(SIGSEGV, &printBacktraceAndExit);
			std::signal(SIGABRT, &printBacktraceAndExit);
			}

			/* ------------------------------------------------------------------------ */
			std::string demangle(const char * symbol) {
			int status;
			std::string result;
			char * demangled_name;

			if ((demangled_name = abi::__cxa_demangle(symbol, NULL, 0, &status)) !=
			NULL) {
			result = demangled_name;
			free(demangled_name);
			} else {
			result = symbol;
			}

			return result;
			}

			/* ------------------------------------------------------------------------ */
			#if (defined(READLINK_COMMAND) \|\| defined(ADDR2LINK_COMMAND)) && \
			(not defined(_WIN32))
			std::string exec(std::string cmd) {
			FILE * pipe = popen(cmd.c_str(), "r");
			if (!pipe)
			return "";
			char buffer[1024];
			std::string result = "";
			while (!feof(pipe)) {
			if (fgets(buffer, 128, pipe) != NULL)
			result += buffer;
			}

			result = result.substr(0, result.size() - 1);
			pclose(pipe);
			return result;
			}
			#endif

			/* ------------------------------------------------------------------------ */
			void printBacktrace(__attribute__((unused)) int sig) {
			AKANTU_DEBUG_INFO("Caught signal " << sig << "!");

			#if not defined(_WIN32)
			#if defined(READLINK_COMMAND) && defined(ADDR2LINE_COMMAND)
			std::string me = "";
			char buf[1024];
			/* The manpage says it won't null terminate. Let's zero the buffer. */
			memset(buf, 0, sizeof(buf));
			/* Note we use sizeof(buf)-1 since we may need an extra char for NUL. */
			if (readlink("/proc/self/exe", buf, sizeof(buf) - 1))
			me = std::string(buf);

			std::ifstream inmaps;
			inmaps.open("/proc/self/maps");
			std::map<std::string, size_t> addr_map;
			std::string line;
			while (inmaps.good()) {
			std::getline(inmaps, line);
			std::stringstream sstr(line);

			size_t first = line.find('-');
			std::stringstream sstra(line.substr(0, first));
			size_t addr;
			sstra >> std::hex >> addr;

			std::string lib;
			sstr >> lib;
			sstr >> lib;
			sstr >> lib;
			sstr >> lib;
			sstr >> lib;
			sstr >> lib;
			if (lib != "" && addr_map.find(lib) == addr_map.end()) {
			addr_map[lib] = addr;
			}
			}

			if (me != "")
			addr_map[me] = 0;
			#endif

			/// \todo for windows this part could be coded using CaptureStackBackTrace and
			/// SymFromAddr

			const size_t max_depth = 100;
			size_t stack_depth;
			void * stack_addrs[max_depth];
			char ** stack_strings;

			size_t i;

			stack_depth = backtrace(stack_addrs, max_depth);
			stack_strings = backtrace_symbols(stack_addrs, stack_depth);

			std::cerr << "BACKTRACE : " << stack_depth << " stack frames." << std::endl;
			size_t w = size_t(std::floor(log(double(stack_depth)) / std::log(10.)) + 1);

			/// -1 to remove the call to the printBacktrace function
			for (i = 1; i < stack_depth; i++) {
			std::cerr << std::dec << " [" << std::setw(w) << i << "] ";
			std::string bt_line(stack_strings[i]);
			size_t first, second;

			if ((first = bt_line.find('(')) != std::string::npos &&
			(second = bt_line.find('+')) != std::string::npos) {
			std::string location = bt_line.substr(0, first);
			#if defined(READLINK_COMMAND)
			location = exec(std::string(BOOST_PP_STRINGIZE(READLINK_COMMAND)) +
			std::string(" -f ") + location);
			#endif
			std::string call =
			demangle(bt_line.substr(first + 1, second - first - 1).c_str());
			size_t f = bt_line.find('[');
			size_t s = bt_line.find(']');
			std::string address = bt_line.substr(f + 1, s - f - 1);
			std::stringstream sstra(address);
			size_t addr;
			sstra >> std::hex >> addr;

			std::cerr << location << " [" << call << "]";

			#if defined(READLINK_COMMAND) && defined(ADDR2LINE_COMMAND)
			std::map<std::string, size_t>::iterator it = addr_map.find(location);
			if (it != addr_map.end()) {
			std::stringstream syscom;
			syscom << BOOST_PP_STRINGIZE(ADDR2LINE_COMMAND) << " 0x" << std::hex
			<< (addr - it->second) << " -i -e " << location;
			std::string line = exec(syscom.str());
			std::cerr << " (" << line << ")" << std::endl;
			} else {
			#endif
			std::cerr << " (0x" << std::hex << addr << ")" << std::endl;
			#if defined(READLINK_COMMAND) && defined(ADDR2LINE_COMMAND)
			}
			#endif
			} else {
			std::cerr << bt_line << std::endl;
			}
			}

			free(stack_strings);

			std::cerr << "END BACKTRACE" << std::endl;
			#endif
			}

			/* ------------------------------------------------------------------------ */
			/* ------------------------------------------------------------------------ */
			Debugger::Debugger() {
			cout = &std::cerr;
			level = dblWarning;
			parallel_context = "";
			file_open = false;
			print_backtrace = false;
			}

			/* ------------------------------------------------------------------------ */
			Debugger::~Debugger() {
			if (file_open) {
			dynamic_cast<std::ofstream *>(cout)->close();
			delete cout;
			}
			}

			/* ------------------------------------------------------------------------ */
			void Debugger::exit(int status) {
			if (status != EXIT_SUCCESS && status != -50) {
			#ifndef AKANTU_NDEBUG
			int * a = NULL;
			*a = 1;
			#endif
			if (this->print_backtrace)
			akantu::debug::printBacktrace(15);
			}

			#ifdef AKANTU_USE_MPI
			if (status != EXIT_SUCCESS)
			MPI_Abort(MPI_COMM_WORLD, MPI_ERR_UNKNOWN);
			#endif

			std::exit(
			status); // not called when compiled with MPI due to MPI_Abort, but
			// MPI_Abort does not have the noreturn attribute
			}

			/------------------------------------------------------------------------- /
			void Debugger::throwException(const std::string & info,
			const std::string & file, unsigned int line,
			__attribute__((unused)) bool silent,
			__attribute__((unused))
			const std::string & location) const
			throw(akantu::debug::Exception) {

			#if !defined(AKANTU_NDEBUG)
			if (!silent) {
			printMessage("###", dblWarning, info + location);
			}
			#endif

			debug::Exception ex(info, file, line);
			throw ex;
			}

			/* ------------------------------------------------------------------------ */
			void Debugger::printMessage(const std::string & prefix,
			const DebugLevel & level,
			const std::string & info) const {
			if (this->level >= level) {
			#if defined(AKANTU_USE_OBSOLETE_GETTIMEOFDAY)
			struct timeval time;
			gettimeofday(&time, NULL);
			double timestamp = time.tv_sec * 1e6 + time.tv_usec; /in us/
			#else
			struct timespec time;
			clock_gettime(CLOCK_REALTIME_COARSE, &time);
			double timestamp = time.tv_sec * 1e6 + time.tv_nsec * 1e-3; /in us/
			#endif
			*(cout) << parallel_context << "{" << (unsigned int)timestamp << "} "
			<< prefix << " " << info << std::endl;
			}
			}

			/* ------------------------------------------------------------------------ */
			void Debugger::setDebugLevel(const DebugLevel & level) { this->level = level; }

			/* ------------------------------------------------------------------------ */
			const DebugLevel & Debugger::getDebugLevel() const { return level; }

			/* ------------------------------------------------------------------------ */
			void Debugger::setLogFile(const std::string & filename) {
			if (file_open) {
			dynamic_cast<std::ofstream *>(cout)->close();
			delete cout;
			}

			std::ofstream * fileout = new std::ofstream(filename.c_str());
			file_open = true;
			cout = fileout;
			}

			std::ostream & Debugger::getOutputStream() { return *cout; }

			/* ------------------------------------------------------------------------ */
			void Debugger::setParallelContext(int rank, int size) {
			std::stringstream sstr;
			UInt pad = std::ceil(std::log10(size));
			sstr << "<" << getpid() << ">[R" << std::setfill(' ') << std::right
			<< std::setw(pad) << rank << "\|S" << size << "] ";
			parallel_context = sstr.str();
			}

			void setDebugLevel(const DebugLevel & level) { debugger.setDebugLevel(level); }

			const DebugLevel & getDebugLevel() { return debugger.getDebugLevel(); }

			/* -------------------------------------------------------------------------- */
			void exit(int status) { debugger.exit(status); }

			__END_AKANTU_DEBUG__

rAKA/src/common/aka_error.cccafceb59140ebugfixes/39-the-python…

aka_error.ccView Options

rAKA/src/common/aka_error.cc
cafceb59140ebugfixes/39-the-python…

aka_error.cc
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