Francesc Alted wrote:
C:\Users\francesc\Desktop\NumPy>gdb python GNU gdb (GDB) 18.104.22.16800318-cvs Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-w64-mingw32". For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from \Python26_64/python.exe...(no debugging symbols found)...done. (gdb) r Starting program: \Python26_64/python.exe [New Thread 2880.0x410] Python 2.6.5 (r265:79096, Mar 19 2010, 18:02:59) [MSC v.1500 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information.
C:\Python26_64\lib\site-packages\numpy\core__init__.py:5: Warning: Numpy built with MINGW-W64 on Windows 64 bits is experimental, and only available for testing. You are advised not to use it for production.
CRASHES ARE TO BE EXPECTED - PLEASE REPORT THEM TO NUMPY DEVELOPERS import multiarray
Running unit tests for numpy NumPy version 1.4.0 NumPy is installed in C:\Python26_64\lib\site-packages\numpy Python version 2.6.5 (r265:79096, Mar 19 2010, 18:02:59) [MSC v.1500 64 bit (AMD 64)] nose version 0.11.3 Forcing DISTUTILS_USE_SDK=1 .....warning: HEAP[python.exe]: warning: Invalid address specified to RtlFreeHeap( 0000000002240000, 0000000000C 25110 )
Program received signal SIGTRAP, Trace/breakpoint trap. 0x0000000076fa6061 in ntdll!DbgBreakPoint () from C:\Windows\system32\ntdll.dll (gdb) bt #0 0x0000000076fa6061 in ntdll!DbgBreakPoint () from C:\Windows\system32\ntdll.dll #1 0x0000000076ffe17a in ntdll!EtwEventProviderEnabled () from C:\Windows\system32\ntdll.dll #2 0x00000000022af0d8 in ?? () #3 0x000000005104095c in ?? () #4 0x0000000000219a08 in ?? () #5 0x000000000e040001 in ?? () #6 0x0000000002240000 in ?? () #7 0x0000000076fe27a1 in ntdll!MD4Final () from C:\Windows\system32\ntdll.dll #8 0x0000000076fb9630 in ntdll!LdrGetProcedureAddress () from C:\Windows\system32\ntdll.dll #9 0x0000000076fb9500 in ntdll!LdrGetProcedureAddress () from C:\Windows\system32\ntdll.dll #10 0x0000000002240000 in ?? () #11 0x0000000000c25110 in ?? () #12 0x0000000002240000 in ?? () #13 0x000000000623f197 in ?? () #14 0x0000000002240000 in ?? () #15 0x00000000770151a9 in ntdll!RtlTraceDatabaseCreate () from C:\Windows\system32\ntdll.dll #16 0x0000000000000000 in ?? () (gdb)
Believe it or not, but this is already much better than what I had last time I looked at it (the stack was corrupted after two items, and gdb often crashed). I had to build custom mingw runtimes to get there last year :)
So, it is still exactly as you said: it seems like gdb cannot introspect MS debug symbols.
And for completeness, the MS tools of course cannot read the mingw debugging symbols, but the contrary would have been surprising. It does not help that debugging things inside the MS C runtime is a nightmare (because you have to rebuild everything, including python). I wonder if MS makes the sources of their runtime available under some license to look more into it.
I also thought about using valgrind, but then there are some issues running wine in 64 bits mode under valgrind (maybe solved since then: https://bugs.kde.org/show_bug.cgi?id=197259).
Exactly. OK, I think I'm done with this try for the moment. It is a pity because mingw-w64 does an excellent job with my preliminary tests with Blosc compressor (it achieves 4x better performance than mingw-w32 and 2x better than MSVC 2008 32-bit). But before going MSVC 64-bit route, I'd like to test Intel compiler 64-bit. Anyone knows if it can cope with numpy?
What works well is MS compiler + Intel Fortran compiler (at least with numscons). Surprisingly, when I tried using the Intel C compiler + Intel Fortran compiler, I also had a lot of issues, not unlike the ones with mingw. What I am afraid is that the C runtimes issues are unsolvable on win64 because of python, and that we have to use the MS compiler (for C and C++).