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Refactor toolchain file
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@PhysicsX
PhysicsX committed Jan 2, 2024
1 parent dfa302c commit 0b9c0f6
Showing 1 changed file with 24 additions and 34 deletions.
58 changes: 24 additions & 34 deletions QtRaspberryPi6.6.1/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -218,82 +218,72 @@ Create toolchain.cmake under qt6 directory
cmake_minimum_required(VERSION 3.20)
include_guard(GLOBAL)

# Set the system name and processor for cross-compilation
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR arm)

set(TARGET_SYSROOT /home/ulas/rpi-sysroot) # update the location
# Set the target sysroot and architecture
set(TARGET_SYSROOT /home/ulas/rpi-sysroot) ## update this path accordingly
set(TARGET_ARCHITECTURE aarch64-linux-gnu)
set(CMAKE_SYSROOT ${TARGET_SYSROOT})

set(ENV{PKG_CONFIG_PATH} $PKG_CONFIG_PATH:${CMAKE_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}/pkgconfig)
set(ENV{PKG_CONFIG_LIBDIR} /usr/lib/pkgconfig:/usr/share/pkgconfig/:${TARGET_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}/pkgconfig:${TARGET_SYSROOT}/usr/lib/pkgconfig)
set(ENV{PKG_CONFIG_SYSROOT_DIR} ${CMAKE_SYSROOT})
# Configure the pkg-config environment variables
set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:${CMAKE_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}/pkgconfig")
set(ENV{PKG_CONFIG_LIBDIR} "/usr/lib/pkgconfig:/usr/share/pkgconfig:${CMAKE_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}/pkgconfig:${CMAKE_SYSROOT}/usr/lib/pkgconfig")
set(ENV{PKG_CONFIG_SYSROOT_DIR} "${CMAKE_SYSROOT}")

# Set the C and C++ compilers
set(CMAKE_C_COMPILER /opt/cross-pi-gcc/bin/${TARGET_ARCHITECTURE}-gcc)
set(CMAKE_CXX_COMPILER /opt/cross-pi-gcc/bin/${TARGET_ARCHITECTURE}-g++)

# Define additional compiler flags
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -isystem=/usr/include -isystem=/usr/local/include -isystem=/usr/include/${TARGET_ARCHITECTURE}")
set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}")

set(QT_COMPILER_FLAGS "-march=armv8-a")
# Set Qt-specific compiler and linker flags
set(QT_COMPILER_FLAGS "-march=armv8-a -mfpu=crypto-neon-fp-armv8 -mtune=cortex-a72 -mfloat-abi=hard")
set(QT_COMPILER_FLAGS_RELEASE "-O2 -pipe")
set(QT_LINKER_FLAGS "-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-rpath-link=${TARGET_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE} -Wl,-rpath-link=$HOME/qt6/pi/lib")

# Configure CMake find root path modes
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

# Set the install RPATH use and build RPATH
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
set(CMAKE_BUILD_RPATH ${TARGET_SYSROOT})

include(CMakeInitializeConfigs)

function(cmake_initialize_per_config_variable _PREFIX _DOCSTRING)
if (_PREFIX MATCHES "CMAKE_(C|CXX|ASM)_FLAGS")
set(CMAKE_${CMAKE_MATCH_1}_FLAGS_INIT "${QT_COMPILER_FLAGS}")

foreach (config DEBUG RELEASE MINSIZEREL RELWITHDEBINFO)
if (DEFINED QT_COMPILER_FLAGS_${config})
set(CMAKE_${CMAKE_MATCH_1}_FLAGS_${config}_INIT "${QT_COMPILER_FLAGS_${config}}")
endif()
endforeach()
endif()


if (_PREFIX MATCHES "CMAKE_(SHARED|MODULE|EXE)_LINKER_FLAGS")
foreach (config SHARED MODULE EXE)
set(CMAKE_${config}_LINKER_FLAGS_INIT "${QT_LINKER_FLAGS}")
endforeach()
endif()

_cmake_initialize_per_config_variable(${ARGV})
endfunction()
# Initialize CMake configuration variables with the specified flags.
set(CMAKE_C_FLAGS_INIT "${QT_COMPILER_FLAGS} -march=armv8-a")
set(CMAKE_CXX_FLAGS_INIT "${QT_COMPILER_FLAGS} -march=armv8-a")
set(CMAKE_EXE_LINKER_FLAGS_INIT "${QT_LINKER_FLAGS} -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed")
set(CMAKE_SHARED_LINKER_FLAGS_INIT "${QT_LINKER_FLAGS} -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed")
set(CMAKE_MODULE_LINKER_FLAGS_INIT "${QT_LINKER_FLAGS} -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed")

# Set paths for XCB and OpenGL libraries
set(XCB_PATH_VARIABLE ${TARGET_SYSROOT})

set(GL_INC_DIR ${TARGET_SYSROOT}/usr/include)
set(GL_LIB_DIR ${TARGET_SYSROOT}:${TARGET_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}/:${TARGET_SYSROOT}/usr:${TARGET_SYSROOT}/usr/lib)

set(GL_LIB_DIR ${TARGET_SYSROOT}:${TARGET_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE}:${TARGET_SYSROOT}/usr:${TARGET_SYSROOT}/usr/lib)
set(EGL_INCLUDE_DIR ${GL_INC_DIR})
set(EGL_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libEGL.so)

set(OPENGL_INCLUDE_DIR ${GL_INC_DIR})
set(OPENGL_opengl_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libOpenGL.so)

set(GLESv2_INCLUDE_DIR ${GL_INC_DIR})
set(GLIB_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libGLESv2.so)

set(GLESv2_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libGLESv2.so)

# Correct the setting for gbm_LIBRARY
set(gbm_INCLUDE_DIR ${GL_INC_DIR})
set(gbm_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libgbm.so)

set(Libdrm_INCLUDE_DIR ${GL_INC_DIR})
set(Libdrm_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libdrm.so)

set(XCB_XCB_INCLUDE_DIR ${GL_INC_DIR})
set(XCB_XCB_LIBRARY ${XCB_PATH_VARIABLE}/usr/lib/${TARGET_ARCHITECTURE}/libxcb.so)

# Append to CMake library and prefix paths
list(APPEND CMAKE_LIBRARY_PATH ${CMAKE_SYSROOT}/usr/lib/${TARGET_ARCHITECTURE})
list(APPEND CMAKE_PREFIX_PATH "/usr/lib/${TARGET_ARCHITECTURE}/cmake")
```
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