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49 lines
1.8 KiB
49 lines
1.8 KiB
4 months ago
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#
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# CMake Toolchain file for crosscompiling Android / aarch64
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#
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# This can be used when running cmake in the following way:
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# cd build/
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# cmake .. -DCMAKE_TOOLCHAIN_FILE=../cross-aarch64-android.cmake
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#
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# Target operating system name.
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set(CMAKE_SYSTEM_NAME Linux)
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set(CMAKE_SYSTEM_PROCESSOR aarch64)
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# Name of C compiler.
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set(CMAKE_C_COMPILER "aarch64-linux-android-gcc")
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set(CMAKE_CXX_COMPILER "aarch64-linux-android-g++")
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#
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# Different build system distros set release optimization level to different
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# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3
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# here. Actually the build system's local policy is completely unrelated to
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# our desire for cross-build release optimization policy for code built to run
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# on a completely different target than the build system itself.
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#
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# Since this goes last on the compiler commandline we have to override it to a
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# sane value for cross-build here. Notice some gcc versions enable broken
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# optimizations with -O3.
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#
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if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
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endif()
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#-nostdlib
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SET(CMAKE_C_FLAGS "-DGCC_VER=\"\\\"$(GCC_VER)\\\"\" -DARM64=1 -D__LP64__=1 -Os -g3 -fpie -mstrict-align -fPIC -ffunction-sections -fdata-sections " CACHE STRING "" FORCE)
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# Where to look for the target environment. (More paths can be added here)
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#set(CMAKE_FIND_ROOT_PATH "")
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# Adjust the default behavior of the FIND_XXX() commands:
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# search programs in the host environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# Search headers and libraries in the target environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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