cmake can't compile test on android ndk r23b using ollvm 12

[maxerz]

i've compiled ollvm on windows with Visual Studio 16 2019 with following cmds:
cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=ARM -DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi;compiler-rt;lld" -Thost=x64 ../llvm (i've also tried with only clang)
cmake --build . --target ALL_BUILD --config Release -- /nologo /maxcpucount
then i copied build outputs to <toolchain_dir>/bin and <toolchain_dir>/lib64, when i try to compile simple android cmake project i get this error:

[main] Configuring folder: src 
[proc] Executing command: D:\CMake\bin\cmake.EXE --no-warn-unused-cli -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Release -Sd:/bmbr/src -Bd:/bmbr/src/build -G "MinGW Makefiles"
[cmake] Not searching for unused variables given on the command line.
[cmake] -- Android: Targeting API '19' with architecture 'arm', ABI 'armeabi-v7a', and processor 'armv7-a'
[cmake] -- Android: Selected unified Clang toolchain
[cmake] -- The C compiler identification is Clang 12.0.1
[cmake] -- The CXX compiler identification is Clang 12.0.1
[cmake] -- Detecting C compiler ABI info
[cmake] -- Detecting C compiler ABI info - failed
[cmake] -- Check for working C compiler: D:/ndk23b/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe
[cmake] -- Check for working C compiler: D:/ndk23b/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - broken
[cmake] -- Configuring incomplete, errors occurred!
[cmake] See also "D:/bmbr/src/build/CMakeFiles/CMakeOutput.log".
[cmake] See also "D:/bmbr/src/build/CMakeFiles/CMakeError.log".
[cmake] CMake Error at D:/CMake/share/cmake-3.21/Modules/CMakeTestCCompiler.cmake:69 (message):
[cmake]   The C compiler
[cmake] 
[cmake]     "D:/ndk23b/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe"
[cmake] 
[cmake]   is not able to compile a simple test program.
[cmake] 
[cmake]   It fails with the following output:
[cmake] 
[cmake]     Change Dir: D:/bmbr/src/build/CMakeFiles/CMakeTmp
[cmake]     
[cmake]     Run Build Command(s):C:/MinGW/bin/mingw32-make.exe -f Makefile cmTC_b0a71/fast && C:/MinGW/bin/mingw32-make.exe  -f CMakeFiles\cmTC_b0a71.dir\build.make CMakeFiles/cmTC_b0a71.dir/build
[cmake]     mingw32-make.exe[1]: Entering directory 'D:/bmbr/src/build/CMakeFiles/CMakeTmp'
[cmake]     Building C object CMakeFiles/cmTC_b0a71.dir/testCCompiler.c.o
[cmake]     D:\ndk23b\toolchains\llvm\prebuilt\windows-x86_64\bin\clang.exe --target=armv7-none-linux-androideabi19 --sysroot=D:/ndk23b/toolchains/llvm/prebuilt/windows-x86_64/sysroot   -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -march=armv7-a -mthumb -Wformat -Werror=format-security -fexceptions  -O2 -g -DNDEBUG -fPIE -MD -MT CMakeFiles/cmTC_b0a71.dir/testCCompiler.c.o -MF CMakeFiles\cmTC_b0a71.dir\testCCompiler.c.o.d -o CMakeFiles\cmTC_b0a71.dir\testCCompiler.c.o -c D:\bmbr\src\build\CMakeFiles\CMakeTmp\testCCompiler.c
[cmake]     Linking C executable cmTC_b0a71
[cmake]     D:\CMake\bin\cmake.exe -E cmake_link_script CMakeFiles\cmTC_b0a71.dir\link.txt --verbose=1
[cmake]     D:\ndk23b\toolchains\llvm\prebuilt\windows-x86_64\bin\clang.exe --target=armv7-none-linux-androideabi19 --sysroot=D:/ndk23b/toolchains/llvm/prebuilt/windows-x86_64/sysroot -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -march=armv7-a -mthumb -Wformat -Werror=format-security -fexceptions  -O2 -g -DNDEBUG -Wl,--build-id=sha1 -Wl,--no-rosegment -Wl,--fatal-warnings -Qunused-arguments -Wl,--no-undefined  -Wl,--gc-sections  CMakeFiles/cmTC_b0a71.dir/testCCompiler.c.o -o cmTC_b0a71   -latomic -lm 
[cmake]     ld: error: unable to find library -latomic
[cmake]     ld: error: unable to find library -lgcc
[cmake]     ld: error: unable to find library -lgcc
[cmake]     clang: error: linker command failed with exit code 1 (use -v to see invocation)
[cmake]     mingw32-make.exe[1]: *** [CMakeFiles\cmTC_b0a71.dir\build.make:99: cmTC_b0a71] Error 1
[cmake]     mingw32-make.exe[1]: Leaving directory 'D:/bmbr/src/build/CMakeFiles/CMakeTmp'
[cmake]     mingw32-make.exe: *** [Makefile:126: cmTC_b0a71/fast] Error 2
[cmake]     
[cmake]     
[cmake] 
[cmake]   
[cmake] 
[cmake]   CMake will not be able to correctly generate this project.
[cmake] Call Stack (most recent call first):
[cmake]   CMakeLists.txt:9 (project)
[cmake] 
[cmake] 

(i'm using android toolchain that is bundled with ndk with following settings: platform = android-19, stl = c++_static, abi = armeabi-v7a, i've tried using legacy toolchain, same results)

[ghost]

I got similar issue with ld library too

Can you try ollvm 14 for windows? https://github.com/sr-tream/obfuscator/#integrate-to-android-ndk . I can't compile with mingw

You're lucky to be able to compile with VS2019 because I always failed with it, and I had to use mingw-w64 8.1.0.

[heroims]

You may have no problem executing your instructions on Linux, but use VS2019 on windows. I suggest cmake adding -G "Visual Studio 16 2019" and open .sln compiling with VS2019

[ghost]

You may have no problem executing your instructions on Linux, but use VS2019 on windows. I suggest cmake adding -G "Visual Studio 16 2019" and open .sln compiling with VS2019

I tried that, i'm always getting strange errors

Severity	Code	Description	Project	File	Line	Suppression State
Error		unable to create target: 'No available targets are compatible with triple "x86_64-pc-windows-msvc19.29.30145"'	TAsan-x86_64-calls-Noinst-Test	E:\ollvm14\obfuscator\llvm-project\build\projects\compiler-rt\lib\asan\tests\CUSTOMBUILD	1	

[ghost]

Nvm, i used cmake --build as mentioned above. Works like a charm with ollvm 14

[rsyzee]

How to solve ld: error: unable to find library -latomic
[cmake] ld: error: unable to find library -lgcc
[cmake] ld: error: unable to find library -lgcc