Support of mingw cross compilation?

[Hideman85]

HastyNoise/build (master)$ cmake .. -DCMAKE_TOOLCHAIN_FILE=../WindowsCompileOnLinux.cmake 
-- The C compiler identification is GNU 8.3.0
-- The CXX compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/x86_64-w64-mingw32-gcc
-- Check for working C compiler: /usr/bin/x86_64-w64-mingw32-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/x86_64-w64-mingw32-g++
-- Check for working CXX compiler: /usr/bin/x86_64-w64-mingw32-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- HN_SIMD_SSE2: ON
-- HN_SIMD_SSE41: ON
-- HN_SIMD_AVX2: ON
-- HN_SIMD_AVX512: ON
-- Configuring done
-- Generating done
-- Build files have been written to: HastyNoise/build
HastyNoise/build (master)$ make
Scanning dependencies of target hastyNoise
[  9%] Building CXX object CMakeFiles/hastyNoise.dir/HastyNoise/hastyNoise.cpp.obj
HastyNoise/HastyNoise/hastyNoise.cpp: In function ‘size_t HastyNoise::_GetFastestSIMD()’:
HastyNoise/HastyNoise/hastyNoise.cpp:175:40: error: ‘_XCR_XFEATURE_ENABLED_MASK’ was not declared in this scope
         uint64_t xcrFeatureMask=xgetbv(_XCR_XFEATURE_ENABLED_MASK);
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~
HastyNoise/HastyNoise/hastyNoise.cpp:201:34: error: ‘_XCR_XFEATURE_ENABLED_MASK’ was not declared in this scope
     bool oxAVX512Support=(xgetbv(_XCR_XFEATURE_ENABLED_MASK)&0xe6)==0xe6;
                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
make[2]: *** [CMakeFiles/hastyNoise.dir/build.make:63: CMakeFiles/hastyNoise.dir/HastyNoise/hastyNoise.cpp.obj] Error 1
make[1]: *** [CMakeFiles/Makefile2:112: CMakeFiles/hastyNoise.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

Toolchain file:

# the name of the target operating system
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_EXE_LINKER_FLAGS -static-libstdc++\ -static-libgcc\ -static)

# Which compilers to use for C and C++
set(CMAKE_C_COMPILER /usr/bin/x86_64-w64-mingw32-gcc)
set(CMAKE_CXX_COMPILER /usr/bin/x86_64-w64-mingw32-g++)
set(CMAKE_RC_COMPILER /usr/bin/x86_64-w64-mingw32-windres)

[caseymcc]

try to put

#ifndef _XCR_XFEATURE_ENABLED_MASK
#define _XCR_XFEATURE_ENABLED_MASK 0
#endif

at the top of hastyNoise.cpp

[Hideman85]

When I do that it is even worst got lot of errors:

In file included from /usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/x86intrin.h:74,
                 from /usr/share/mingw-w64/include/winnt.h:1554,
                 from /usr/share/mingw-w64/include/minwindef.h:163,
                 from /usr/share/mingw-w64/include/windef.h:8,
                 from /usr/share/mingw-w64/include/windows.h:69,
                 from /tmp/HastyNoise/HastyNoise/hastyNoise.cpp:39:
/usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/xsaveintrin.h: In function ‘uint64_t HastyNoise::xgetbv(unsigned int)’:
/usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/xsaveintrin.h:60:1: error: inlining failed in call to always_inline ‘long long int _xgetbv(unsigned int)’: target specific option mismatch
 _xgetbv (unsigned int __A)
 ^~~~~~~
/tmp/HastyNoise/HastyNoise/hastyNoise.cpp:130:19: note: called from here
     return _xgetbv(x);
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:83:51: error: expected initializer before ‘Lerp’
 static typename SIMD<_SIMDType>::Float VECTORCALL Lerp(typename SIMD<_SIMDType>::Float a, typename SIMD<_SIMDType>::Float b, typename SIMD<_SIMDType>::Float t)
                                                   ^~~~
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:92:51: error: expected initializer before ‘InterpQuintic’
 static typename SIMD<_SIMDType>::Float VECTORCALL InterpQuintic(typename SIMD<_SIMDType>::Float t)
                                                   ^~~~~~~~~~~~~
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:107:51: error: expected initializer before ‘CubicLerp’
 static typename SIMD<_SIMDType>::Float VECTORCALL CubicLerp(typename SIMD<_SIMDType>::Float a, typename SIMD<_SIMDType>::Float b, typename SIMD<_SIMDType>::Float c, typename SIMD<_SIMDType>::Float d, typename SIMD<_SIMDType>::Float t)
                                                   ^~~~~~~~~
In file included from /tmp/HastyNoise/HastyNoise/hastyNoise_none.cpp:8:
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:114:49: error: expected initializer before ‘Hash’
 static typename SIMD<_SIMDType>::Int VECTORCALL Hash(typename SIMD<_SIMDType>::Int seed, typename SIMD<_SIMDType>::Int x, typename SIMD<_SIMDType>::Int y, typename SIMD<_SIMDType>::Int z)
                                                 ^~~~
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:130:49: error: expected initializer before ‘HashHB’
 static typename SIMD<_SIMDType>::Int VECTORCALL HashHB(typename SIMD<_SIMDType>::Int seed, typename SIMD<_SIMDType>::Int x, typename SIMD<_SIMDType>::Int y, typename SIMD<_SIMDType>::Int z)
                                                 ^~~~~~
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:145:51: error: expected initializer before ‘ValCoord’
 static typename SIMD<_SIMDType>::Float VECTORCALL ValCoord(typename SIMD<_SIMDType>::Int seed, typename SIMD<_SIMDType>::Int x, typename SIMD<_SIMDType>::Int y, typename SIMD<_SIMDType>::Int z)
                                                   ^~~~~~~~
In file included from /tmp/HastyNoise/HastyNoise/hastyNoise_none.cpp:1:
/tmp/HastyNoise/HastyNoise/hastyNoise.h:248:20: error: expected ‘;’ at end of member declaration
 #define VECTORCALL __vectorcall
                    ^~~~~~~~~~~~
/tmp/HastyNoise/HastyNoise/hastyNoise_internal.inl:163:44: note: in expansion of macro ‘VECTORCALL’
     static typename SIMD<_SIMDType>::Float VECTORCALL _(typename SIMD<_SIMDType>::Int seed, typename SIMD<_SIMDType>::Int xi, typename SIMD<_SIMDType>::Int yi, typename SIMD<_SIMDType>::Int zi, typename SIMD<_SIMDType>::Float x, typename SIMD<_SIMDType>::Float y, typename SIMD<_SIMDType>::Float z)
....

[caseymcc]

Yeah that just means there are more errors then the first ones. I never tried to compile it in mingw. Although you would assume gcc to be the same everywhere it really is not. May also be related to the gcc version. I do not have a mingw environment setup but if a get a chance this weekend I will take a look.

[Hideman85]

For a pre made MingW64 environment look at https://github.com/dockcross/dockcross and the image windows-static-x64

[caseymcc]

checked in some fixes to https://github.com/caseymcc/HastyNoise/tree/mingw, I need to verify everything still works on the rest of the platforms before I merge it.

[Hideman85]

Got this issue:

make
Scanning dependencies of target hastyNoise
[  9%] Building CXX object CMakeFiles/hastyNoise.dir/HastyNoise/hastyNoise.cpp.obj
In file included from /usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/x86intrin.h:74,
                 from /usr/share/mingw-w64/include/winnt.h:1554,
                 from /usr/share/mingw-w64/include/minwindef.h:163,
                 from /usr/share/mingw-w64/include/windef.h:8,
                 from /usr/share/mingw-w64/include/windows.h:69,
                 from HastyNoise/HastyNoise/hastyNoise.cpp:39:
/usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/xsaveintrin.h: In function ‘uint64_t HastyNoise::xgetbv(unsigned int)’:
/usr/lib/gcc/x86_64-w64-mingw32/8.3-win32/include/xsaveintrin.h:60:1: error: inlining failed in call to always_inline ‘long long int _xgetbv(unsigned int)’: target specific option mismatch
 _xgetbv (unsigned int __A)
 ^~~~~~~
HastyNoise/HastyNoise/hastyNoise.cpp:133:19: note: called from here
     return _xgetbv(x);
            ~~~~~~~^~~
make[2]: *** [CMakeFiles/hastyNoise.dir/build.make:63: CMakeFiles/hastyNoise.dir/HastyNoise/hastyNoise.cpp.obj] Error 1
make[1]: *** [CMakeFiles/Makefile2:112: CMakeFiles/hastyNoise.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

dockcross image don't have filesystem so it should be installed.

[caseymcc]

are you compiling for 32bit?

[Hideman85]

Normally no and I didn't specified any kind of options for but this include x86intrin.h let's me having a doubt.

[Hideman85]

This line is set in my toolchain file that must trigger 64bit compilation set(CMAKE_SYSTEM_PROCESSOR x86_64 CACHE STRING "System Processor")

[TokisanGames]

Mingw does not support building AVX aligned code. This repo won't be able to fix the problem without compiler support.

Here are a few of many discussion links:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412

https://sourceforge.net/p/mingw-w64/mailman/message/34453497/

https://stackoverflow.com/questions/30928265/mingw64-is-incapable-of-32-byte-stack-alignment-required-for-avx-on-windows-x64

msys2/MSYS2-packages#1209