YappariCrashReport

Based on asmCrashReport (excellent work by Andy Maloney).

Provides a dialog to show the user the stack trace information from crashes when using the GNU GCC/G++ compilers including MinGW for Windows or the clang compiler for Qt-based applications.

The user can optionally save the stack trace to a file clicking on the Save report button.

Supports Windows, Linux and macOS.

In Windows the dialog look like this:

For Linux it would look like this:

If you run the included test you get to select which type of crash you want to test:

Usage

There are two examples included in this repository.

In your .pro file, you need to include the YappariCrashReport.pri file. e.g.:

if ( !include( ../YappariCrashReport.pri ) ) {
    error( Could not find the YappariCrashReport.pri file. )
}

This will define YAPPARI_CRASH_REPORT for the preprocessor and modify the C/CXX and linker flags to include the debug symbols properly.

In your main.cpp, include the header:

#ifdef YAPPARI_CRASH_REPORT
#include "YappariCrashReport.h"
#endif

In your main() function, set your signal handler after you have declared your QApplication and set the application name and version number:

QApplication  app( argc, argv );

app.setApplicationName( QStringLiteral( "YappariCrashReportExample" ) );
app.setApplicationVersion( QStringLiteral( "1.0.0" ) );

#ifdef YAPPARI_CRASH_REPORT
   YappariCrashReport::setSignalHandler( [] (const QString &inStackTrace) {

       const QStringList strList = QStringList(inStackTrace.split("\n"));
       for (const QString &str : strList)
           qCritical() << str;
   });
#endif

YappariCrashReport::setSignalHandler has the following prototype:

   /// inCrashReportCallback: A callback function to call after we've shown the dialog to the user
   void setSignalHandler( crashReportCallback inCrashReportCallback = nullptr );

The callback can be used to send the stack trace to the stderr. Its signature must be this:

   /// inCrashReport: The report including the stack trace as a QString
   void crashReportCallback( const QString &inCrashReport );

Look at the example and test source code for more information on how to do this.

Windows (MingW)

Windows needs to be able to find the addr2line command line tool.

Currently, YappariCrashReport will look for this in a tools directory next to the executable (see YappariCrashReport.cpp's _addr2line() function).

The prebuilt MinGW Qt installers include addr2line in the bin directory. It's statically linked so you only need to copy this file to the tools directory.

You can find it usually at C:\Qt\Tools\mingwxxx_xx\bin.

Linux

You need to have the binutils package installed that includes addr2line.

Main differences with asmCrashReport

asmCrashReport saves the stack trace to a log file in a subfolder of the Desktop (Windows) or the user's home directory (Linux/macOS).

YappariCrashReport shows a nice dialog to the user and give them the option to save the file or not, in a location of their preference.

Also asmCrashReport doesn't work on Linux without some modifications that are included in this project.