Tim Mayberry
5f4f89fb39
Add pbd/demangle.cc source file and move functions from pbd/stacktrace.cc into it
140 lines
3.2 KiB
C++
140 lines
3.2 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "libpbd-config.h"
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#include "pbd/stacktrace.h"
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#include "pbd/debug.h"
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#include "pbd/demangle.h"
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#include "pbd/compose.h"
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#include "pbd/pthread_utils.h"
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#include <cstdio>
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#include <iostream>
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#include <string>
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#ifdef PLATFORM_WINDOWS
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#include <windows.h>
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#include <dbghelp.h>
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#endif
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void
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PBD::trace_twb ()
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{
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}
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/* Obtain a backtrace and print it to stdout. */
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#ifdef HAVE_EXECINFO
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#include <execinfo.h>
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void
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PBD::stacktrace (std::ostream& out, int levels)
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{
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void *array[200];
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size_t size;
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char **strings;
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size_t i;
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size = backtrace (array, 200);
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if (size) {
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strings = backtrace_symbols (array, size);
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if (strings) {
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for (i = 0; i < size && (levels == 0 || i < size_t(levels)); i++) {
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out << " " << demangle (strings[i]) << std::endl;
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}
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free (strings);
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}
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} else {
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out << "no stacktrace available!" << std::endl;
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}
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}
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#elif defined (PLATFORM_WINDOWS)
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#if defined DEBUG && !defined CaptureStackBackTrace
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#define CaptureStackBackTrace RtlCaptureStackBackTrace
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extern "C" {
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__declspec(dllimport) USHORT WINAPI CaptureStackBackTrace (
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ULONG FramesToSkip,
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ULONG FramesToCapture,
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PVOID *BackTrace,
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PULONG BackTraceHash
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);
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}
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#endif
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void
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PBD::stacktrace( std::ostream& out, int)
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{
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#ifdef DEBUG
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const size_t levels = 62; // does not support more then 62 levels of stacktrace
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unsigned int i;
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void * stack[ levels ];
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unsigned short frames;
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SYMBOL_INFO * symbol;
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HANDLE process;
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process = GetCurrentProcess();
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out << "+++++Backtrace process: " << DEBUG_THREAD_SELF << std::endl;
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SymInitialize( process, NULL, TRUE );
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frames = CaptureStackBackTrace( 0, levels, stack, NULL );
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out << "+++++Backtrace frames: " << frames << std::endl;
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symbol = ( SYMBOL_INFO * )calloc( sizeof( SYMBOL_INFO ) + 256 * sizeof( char ), 1 );
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symbol->MaxNameLen = 255;
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symbol->SizeOfStruct = sizeof( SYMBOL_INFO );
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for( i = 0; i < frames; i++ )
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{
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SymFromAddr( process, ( DWORD64 )( stack[ i ] ), 0, symbol );
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out << string_compose( "%1: %2 - %3\n", frames - i - 1, symbol->Name, symbol->Address );
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}
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out.flush();
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free( symbol );
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#endif
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}
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#else
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void
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PBD::stacktrace (std::ostream& out, int /*levels*/)
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{
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out << "stack tracing is not enabled on this platform" << std::endl;
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}
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#endif
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void
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c_stacktrace ()
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{
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PBD::stacktrace (std::cout);
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}
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