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Allow Cross-Compile with latest Ubuntu and Raspbian versions

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This commit is contained in:
LordGrey
2019-06-10 15:19:08 +02:00
parent 4aab0ad55c
commit ba3762e865
8 changed files with 147 additions and 77 deletions
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35
cmake/Toolchain-rpi.cmake
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@@ -1,14 +1,20 @@
SET(RASPCROSS_DIR $ENV{HOME}/raspberrypi)
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_VERSION 1)
# specify the cross compiler
SET(CMAKE_C_COMPILER ${RASPCROSS_DIR}/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-gcc)
SET(CMAKE_CXX_COMPILER ${RASPCROSS_DIR}/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++)
SET(CROSSROOT $ENV{HOME}/crosscompile)
SET(DEVROOT ${CROSSROOT}/raspberrypi)
SET(PIROOT ${DEVROOT}/rootfs)
SET(PITOOLCHAIN ${DEVROOT}/tools)
# where is the target environment
SET(CMAKE_FIND_ROOT_PATH ${RASPCROSS_DIR}/rootfs)
SET(TOOLROOT ${PITOOLCHAIN}/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf )
SET(QT_BIN_PATH ${CROSSROOT}/Qt5/Qt5.7.1/5.7/gcc_64/bin)
# specify the cross compiler
SET(CMAKE_C_COMPILER ${TOOLROOT}/bin/arm-linux-gnueabihf-gcc)
SET(CMAKE_CXX_COMPILER ${TOOLROOT}/bin/arm-linux-gnueabihf-g++)
SET(CMAKE_SYSROOT ${PIROOT})
SET(CMAKE_FIND_ROOT_PATH ${PIROOT})
# search for programs in the build host directories
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
@@ -16,4 +22,19 @@ SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
#SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGES ONLY)
#SET Flags for linking as dynamic linker config file is not being properly parsed by the toolchain
# see https://solderspot.wordpress.com/2016/02/04/cross-compiling-for-raspberry-pi-part-ii/
SET(FLAGS "-Wl,-rpath-link,${PIROOT}/opt/vc/lib -Wl,-rpath-link,${PIROOT}/lib/arm-linux-gnueabihf -Wl,-rpath-link,${PIROOT}/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,${PIROOT}/usr/local/lib")
UNSET(CMAKE_C_FLAGS CACHE)
UNSET(CMAKE_CXX_FLAGS CACHE)
SET(CMAKE_CXX_FLAGS ${FLAGS} CACHE STRING "" FORCE)
SET(CMAKE_C_FLAGS ${FLAGS} CACHE STRING "" FORCE)
link_directories(${PIROOT}/lib/arm-linux-gnueabihf)