Dear Matthias,
I think the answer is yes (I cite "ccmake .” output belop)
Is there a file which contains the full command that is used to compile a given source file? I tried to track back through cmakefiles manually, but I failed
CMAKE_BUILD_TYPE Debug CMAKE_COLOR_MAKEFILE ON CMAKE_CXX_COMPILER /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG -g CMAKE_CXX_FLAGS_MINSIZEREL -Os -DNDEBUG CMAKE_CXX_FLAGS_RELEASE -O3 -DNDEBUG CMAKE_CXX_FLAGS_RELWITHDEBINFO -O2 -g -DNDEBUG CMAKE_C_COMPILER /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG -g CMAKE_C_FLAGS_MINSIZEREL -Os -DNDEBUG CMAKE_C_FLAGS_RELEASE -O3 -DNDEBUG CMAKE_C_FLAGS_RELWITHDEBINFO -O2 -g -DNDEBUG
Best, Mateusz
On 26 Aug 2015, at 13:48, Matthias Troyer troyer@phys.ethz.ch wrote:
Dear Mateusz,
That should do it, but you an check whether the debug compilation flags actually contain a -g, if not you can edit them
Matthias
On Aug 26, 2015, at 1:21 PM, Mateusz Łącki <mateusz.lacki@gmail.com mailto:mateusz.lacki@gmail.com> wrote:
Dear Matthias. Thank you for the reply. I did the following:
I recompiled alps using new empty build directory with "-D CMAKE_BUILD_TYPE=Debug” in the cmake command, but still gdb produces the following:
Program received signal SIGSEGV, Segmentation fault. 0x00000001000e4468 in ?? () (gdb) bt #0 0x00000001000e4468 in ?? () #1 0x00007fff5fbfbed0 in ?? () #2 0x00007fff5fbfc168 in ?? () #3 0x00007fff5fbfbed0 in ?? () #4 0x000000010004cf95 in ?? () #5 0x0000000104683cc0 in ?? () #6 0x0000000104938940 in ?? () #7 0x0000000000000000 in ?? () (gdb) quit
So no debug information. I would appreciate any information of what I could be doing wrong. Is setting the flag ""-D CMAKE_BUILD_TYPE=Debug” enough?
I have noticed that there was some effect: for example mps_optim produces a lot more on the output (I’d say due to std::count << mps.description() << std::endl; ) , so I guess some debug option is being printed but this would be triggered by passing a proper flag like “-D DEBUG” to the preprocessor, but I am hoping for “-g” for the compiler.
Best, Mateusz
On 07 Aug 2015, at 16:30, Matthias Troyer <troyer@phys.ethz.ch mailto:troyer@phys.ethz.ch> wrote:
Yes, just switch the build mode in cmake from Release to Debug
Matthias
On 07 Aug 2015, at 07:20, Mateusz Łącki <mateusz.lacki@gmail.com mailto:mateusz.lacki@gmail.com> wrote:
Dear All, I would like to ask for some practical tips how to effectively debug alps applications:
Is there a way how to build alps with debug flags switched on?. I would appreciate an ability to use a debugger such as gdb to debug the alps applications code. Does the debugging logic depend heavily on a particular alps application (meaning is debugging modifications of mps_optim moreless equivalent to debugging dwa code)?
Can this debug mode be turned on using the cmake flags?
Best, Mateusz Łącki