Hi, For several months now, I have been succesfully using Mingw-w64 to compile the x64 version of the replacements windows shell boxCore (http://developer.berlios.de/projects/boxcore/). Recent development versions have begun encountering segfaults during startup, when compiled with mingw-w64. The same version of code works correctly when compiled with normal mingw or with MSVC 2008 (32 bit), I do not have another 64-bit comiler to test with.
I have tried to debug the code using the gdb provided on the mingw-w64 download page, but I cannot get a meaningfull backtrace. I only recieve a backtrace of 3 frames, and the last two are nonsense adresses (0x002, 0x200 etc). When using WinDbg for x64 I can obtain a backtrace, but no symbol infomration is available, making it impossible for me to locate the problem. The corrupt callback stack in gdb makes me think that it may be due to some sort of stack corruption occuring. Does the version of gdb on the download page work correctly, and if not what version should I download or compile for use with mingw-w64 compiled applications? Is there a known bug which could cause this kind of behaviour. I encounter the crash when compiling both with -O2, as well as with no optimisations and debug information on (I tried both -g and -gstabs). I am using a toolchain that I compiled myself. The original versions I used where: GCC 4.3.3, Binutils 2.19.1, and the mingw-w64 november 15 snapshot. I have since upgraded the toolchain to GCC 4.4-snapshot-20090306, Binutils 2.19.5.0.2 and current mingw-w64 svn, but still have the same problem. Any help would be appreciated. Regards, Shaun Barlow ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
