generated from Projetos/RaspberryPi_app
71 lines
2.5 KiB
CMake
71 lines
2.5 KiB
CMake
# rpi1-toolchain.cmake - Toolchain file for Raspberry Pi 1 (ARMv6)
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# Additional settings for better compatibility
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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set(CMAKE_SYSTEM_NAME Linux)
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set(CMAKE_SYSTEM_PROCESSOR arm)
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# Detect if we're in a try_compile invocation
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# During try_compile, BUILDROOT_PATH won't be available, but that's OK
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# because we set CMAKE_TRY_COMPILE_TARGET_TYPE above
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get_property(_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
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if(NOT _IN_TRY_COMPILE)
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# Only validate during main configuration, not during try_compile
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if(NOT BUILDROOT_PATH)
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message(FATAL_ERROR
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"BUILDROOT_PATH is not defined!\n"
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"Please pass -DBUILDROOT_PATH=/path/to/buildroot when configuring CMake.\n"
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"Example: cmake -DBUILDROOT_PATH=/home/user/rpi1/buildroot ..."
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)
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endif()
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# Verify BUILDROOT_PATH exists
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if(NOT EXISTS "${BUILDROOT_PATH}")
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message(FATAL_ERROR
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"BUILDROOT_PATH does not exist: ${BUILDROOT_PATH}\n"
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"Please check your .env file or cmake configuration."
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)
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endif()
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# Cache it for use in this file during try_compile
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set(BUILDROOT_PATH "${BUILDROOT_PATH}" CACHE PATH "Path to buildroot directory" FORCE)
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endif()
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# If BUILDROOT_PATH is not set (during try_compile), try to get it from cache
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if(NOT BUILDROOT_PATH)
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get_property(BUILDROOT_PATH CACHE BUILDROOT_PATH PROPERTY VALUE)
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endif()
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# Specify the cross compiler
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set(TOOLCHAIN_PREFIX ${BUILDROOT_PATH}/output/host)
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set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}/bin/arm-linux-gcc)
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}/bin/arm-linux-g++)
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# Specify the sysroot for finding libraries and headers
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set(CMAKE_SYSROOT ${TOOLCHAIN_PREFIX}/arm-buildroot-linux-gnueabihf/sysroot)
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set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
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# Only verify paths during main configuration
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if(NOT _IN_TRY_COMPILE)
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# Verify sysroot exists
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if(NOT EXISTS "${CMAKE_SYSROOT}")
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message(FATAL_ERROR
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"Sysroot not found: ${CMAKE_SYSROOT}\n"
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"Please check that buildroot is properly built."
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)
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endif()
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endif()
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# Search for programs in the build host directories
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# Search for libraries and headers in the target directories
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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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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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# Specify target architecture flags
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set(CMAKE_C_FLAGS_INIT "-march=armv6 -mfpu=vfp -mfloat-abi=hard")
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set(CMAKE_CXX_FLAGS_INIT "-march=armv6 -mfpu=vfp -mfloat-abi=hard") |