Hi everybody,
I am fairly new to MinGW64 (and to windows) and this is my first post to
the list. I would like to thank to the authors of and contributors to
mingw64 in the first place.
I am trying to build compiled python modules, which use some compiled
libraries (boost, in particular). The system is Windows 7 64bit Pro. One
of them (http://pypi.python.org/pypi/minieigen/0.3-4) works fine,
another one (source not publicly available yet) does not.
I hit quite a few problems underways and will be reporting them to
upstreams in the days to come.I would like to outline the procedure
(therefore is the message a bit lengthy) I was following so that those
who are experienced could point out which steps were perhaps leading to
later troubles - I marked suspicious points with [!!!].
1. I installed tdm-gcc 4.7.1 targeting x86_64 (I was also trying
personal build of 4.7.2 from rubenvb, with same result) and MSYS. Both
were added to the path.
2. I installed python 2.7.3 using the pre-built (MSVC) x86-64 installer
provided by python.org; I had to:
2a) [!!!] run gendef and dlltool on python27.dll
(http://stackoverflow.com/q/11182765/761090) to be able to -lpython27.
2b) fix Python27/Lib/distutils/cygwincompiler.py to get rid of
-mno-cygwin (http://bugs.python.org/issue12641)
2c) Add python to $PATH
2d) Create ~/pydistutils.cfg containing "[build]\ncompiler=mingw32" so
that it is used automatically by distutils
3. Fix DLLs [!!!!!!]
3a) Copy msvcr90.dll (c:\Windows\winsxs
\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_750b37ff97f4f68b\mscvr90.dll)
somewhere to $PATH (c:\Python27) so that it is in $PATH for dynamic
loader. Python is compiled against msvcr90.dll by upstream.
3b) Likewise for ieshims.dll (c:\Program Files\Internet
Explorer\ieshims.dll)
3c) Move 32bit libs out of the way
(http://gcc.gnu.org/ml/gcc-help/2012-07/msg00060.html suggests to use
-static-libstdc++, but it is not recognized by gcc 4.7); I don't compile
32bit programs, so not having 32bit versions is fine for me:
cd /c/MinGW64/bin
mv libstdc++-6.dll libstdc++-6.dll.~32bit~
cp libstdc++_64-6.dll libstdc++-6.dll
mv libgcc_s_sjlj-1.dll libgcc_s_sjlj-1.dll.~32bit~
cp libgcc_s_shlj_64-1.dll libgcc_s_sjlj-1.dll
3. I downloaded and compiled boost 1.51.0, bootstrapped for gcc, applied
some workarounds (http://stackoverflow.com/a/1737887/761090), downloaded
sources for zlib and bzip2, compiled with variant=release link=shared
threading=multi. Examples for boost::python was running fine.
4. Unpack http://eigen.tuxfamily.org/ (header-only lib), needed for next
step
4. Fix some headers in gcc (this was needed for the next step)
4a) Fix to_string with c++11 (gcc.gnu.org/bugzilla/show_bug.cgi?id=52015)
4b) In c:\MinGW64\x86_64_w64-mingw32\include\stdlib.h, comment out
functions wtoll, lltow, ulltow at lines 626-628. This was only triggered
when including Eigen with vectorization - will be reported separately soon.
4c) In c:\MinGW64\x86_64_w64-mingw32\include\sys\stat.h, replace #ifndef
__CRT_NO_INLINE by #if 0 (errors about undefined struct in _fstat632) -
will be reported separately soon.
5) easy_install minieigen - this actually compiled the module flawlessly
now, and it works.
Now the problem:
Another rather large module fails to load with "DLL load failed: Invalid
access to memory location". I am wrestling to find out what it wrong.
Asking at
http://stackoverflow.com/questions/13173944/how-to-debug-dll-load-failed-invalid-access-to-memory-location
did not help (I am re-posting a part of that here now). DrMinGW64 does
not show any useful stack trace. The dynamic loader at windows only
reports error and does not show any further information:
|Program received signal SIGTRAP, Trace/breakpoint trap.
0x0000000077c23522 in ntdll!ExpInterlockedPopEntrySListFault16 ()
from C:\Windows\system32\ntdll.dll
(gdb) warning: HEAP[python.exe]:
warning: Invalid address specified to RtlSizeHeap( 00000000003B0000,
0000000002306830 )
(gdb) bt
#0 0x0000000077c23522 in ntdll!ExpInterlockedPopEntrySListFault16 ()
from C:\Windows\system32\ntdll.dll
#1 0x0000000077c0c241 in ntdll!RtlZeroHeap ()
from C:\Windows\system32\ntdll.dll
#2 0x0000000077c0c250 in ntdll!RtlZeroHeap ()
from C:\Windows\system32\ntdll.dll
#3 0x0000000077c3c130 in ntdll!LdrLoadAlternateResourceModuleEx ()
from C:\Windows\system32\ntdll.dll
#4 0x00000000003b0000 in ?? ()
#5 0x0000000002306830 in ?? ()
#6 0x00000000003b0000 in ?? ()
#7 0x00000000792e21c0 in ?? ()
#8 0x00000000003b0000 in ?? ()
#9 0x0000000077c3c0ba in ntdll!LdrLoadAlternateResourceModuleEx ()
from C:\Windows\system32\ntdll.dll
#10 0xffffffffffffffff in ?? ()
#11 0x0000000050000061 in ?? ()
#12 0x0000000000000000 in ?? ()|
Any hints on how to proceed would be appreciated.
Cheers,
Vaclav
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