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//======================================================================================================================
//
// This file is part of waLBerla. waLBerla is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// waLBerla is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
//
//! \file PrintStacktrace.cpp
//! \ingroup core
//! \author Martin Bauer <martin.bauer@fau.de>
//
//======================================================================================================================
#include "PrintStacktrace.h"
#include "core/DataTypes.h"
#include <iostream>
namespace walberla {
namespace debug {
void printStacktrace()
{
printStacktrace( std::cerr );
}
} // namespace debug
} // namespace walberla
#if defined(WALBERLA_CXX_COMPILER_IS_GNU) || defined(WALBERLA_CXX_COMPILER_IS_INTEL) || defined( WALBERLA_CXX_COMPILER_IS_CLANG)
#include <execinfo.h>
Christian Godenschwager
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#include <string>
namespace walberla {
namespace debug {
void printStacktrace( std::ostream & os )
{
using std::string;
using std::cerr;
using std::endl;
const int BACKTRACE_LENGTH = 20;
void * array[BACKTRACE_LENGTH];
size_t size;
char **strings;
size_t i;
size = numeric_cast< size_t >( backtrace (array, BACKTRACE_LENGTH) );
strings = backtrace_symbols (array, int_c(size) );
os << "Backtrace: " << std::endl;
for (i = 0; i < size; i++)
{
std::string line ( strings[i] );
// one line might look like this:
//./PrintStacktraceTest(_ZN8walberla4core15printStacktraceEv+0x4b) [0x408c6b]
// extract the portion in the brackets () and demangle it
size_t leftBracket = line.find_first_of( '(' );
size_t rightBracket = line.find_first_of( ')', leftBracket );
string appName = line.substr( 0, leftBracket );
string bracketPart = line.substr( leftBracket+1, rightBracket - leftBracket -1 );
string rest = line.substr( rightBracket +1 );
// split the bracketPart on plus sign
size_t plusPos = bracketPart.find_first_of('+');
string functionName = bracketPart.substr(0, plusPos );
string offset = bracketPart.substr( plusPos+1 );
// try to demangle -> no return code if successfull
// but the returned string starts with "demangle" if demangling failed
// really hacky :(
string demangled = demangle( functionName );
if ( demangled.substr(0, 8) == "demangle")
demangled = functionName;
os << "\t" << appName << " \t " << demangled << endl;
}
free (strings);
}
} // namespace debug
} // namespace walberla
#elif defined(WALBERLA_CXX_COMPILER_IS_MSVC)
#pragma warning( push )
#pragma warning( disable : 4091 )
#include "extern/StackWalker.h"
namespace walberla {
namespace debug {
class WalberlaStackWalker : public stack_walker::StackWalker
{
public:
WalberlaStackWalker( std::ostream & os ) : StackWalker(), os_( os ) { }
protected:
virtual void OnOutput( LPCSTR szText ) { os_ << szText; }
virtual void OnSymInit ( LPCSTR /*szSearchPath*/, DWORD /*symOptions*/, LPCSTR /*szUserName*/ ) { }
virtual void OnLoadModule ( LPCSTR /*img*/, LPCSTR /*mod*/, DWORD64 /*baseAddr*/, DWORD /*size*/, DWORD /*result*/,
LPCSTR /*symType*/, LPCSTR /*pdbName*/, ULONGLONG /*fileVersion*/ ) { }
virtual void OnDbgHelpErr ( LPCSTR /*szFuncName*/, DWORD /*gle*/, DWORD64 /*addr*/ ) { }
std::ostream & os_;
};
void printStacktrace( std::ostream & os )
{
WalberlaStackWalker sw( os );
sw.ShowCallstack();
}
} // namespace debug
} // namespace walberla
#pragma warning( pop )
#else
namespace walberla {
namespace debug {
void printStacktrace( std::ostream & )
{}
} // namespace debug
} // namespace walberla
#endif