Template
feat(vscode): use environment-based GD32 toolchains
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@@ -1,24 +1,62 @@
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# You can change TOOLCHAIN_DIRECTORY if you want to use different toolchain.
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# set(TOOLCHAIN_DIRECTORY "${CMAKE_SOURCE_DIR}/Toolchain/xpack-arm-none-eabi-gcc-11.3.1-1.1/bin")
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# The project never stores a compiler package. Each machine supplies a path.
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# TOOLCHAIN_DIRECTORY (CMake cache) has priority over the environment variable.
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# GD32_GCC_ENV_VAR lets a workstation use a different variable name if needed.
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set(TOOLCHAIN_DIRECTORY "" CACHE PATH "Path to arm-none-eabi toolchain bin directory")
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set(GD32_GCC_ENV_VAR "GD32_GCC_BIN" CACHE STRING "Environment variable containing the ARM GCC path")
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set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES TOOLCHAIN_DIRECTORY GD32_GCC_ENV_VAR)
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if(GD32_GCC_ENV_VAR AND NOT GD32_GCC_ENV_VAR MATCHES "^GD32_[A-Za-z0-9_]+$")
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message(FATAL_ERROR "GD32_GCC_ENV_VAR must use the GD32_ prefix: ${GD32_GCC_ENV_VAR}")
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endif()
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if(NOT TOOLCHAIN_DIRECTORY AND GD32_GCC_ENV_VAR)
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if(DEFINED ENV{${GD32_GCC_ENV_VAR}} AND NOT "$ENV{${GD32_GCC_ENV_VAR}}" STREQUAL "")
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file(TO_CMAKE_PATH "$ENV{${GD32_GCC_ENV_VAR}}" TOOLCHAIN_DIRECTORY)
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endif()
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endif()
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if(NOT TOOLCHAIN_DIRECTORY)
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# Add extra auto-detect paths in this list when using another machine.
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# Example: "C:/your/path/xpack-arm-none-eabi-gcc-11.3.1-1.1/bin"
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set(_TOOLCHAIN_CANDIDATES
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"D:/toolchain/xpack-arm-none-eabi-gcc-11.3.1-1.1/bin"
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"C:/toolchain/xpack-arm-none-eabi-gcc-11.3.1-1.1/bin"
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"${CMAKE_SOURCE_DIR}/Toolchain/xpack-arm-none-eabi-gcc-11.3.1-1.1/bin"
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)
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foreach(_candidate IN LISTS _TOOLCHAIN_CANDIDATES)
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if(EXISTS "${_candidate}/arm-none-eabi-gcc.exe" OR EXISTS "${_candidate}/arm-none-eabi-gcc")
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set(TOOLCHAIN_DIRECTORY "${_candidate}")
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break()
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endif()
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endforeach()
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message(FATAL_ERROR
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"Cannot find ARM GCC toolchain. Set ${GD32_GCC_ENV_VAR} in the machine environment "
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"or pass -DTOOLCHAIN_DIRECTORY=<toolchain-bin>.")
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endif()
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file(TO_CMAKE_PATH "${TOOLCHAIN_DIRECTORY}" TOOLCHAIN_DIRECTORY)
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get_filename_component(TOOLCHAIN_DIRECTORY "${TOOLCHAIN_DIRECTORY}" ABSOLUTE)
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if(WIN32)
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set(TOOLCHAIN_SUFFIX ".exe")
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else()
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set(TOOLCHAIN_SUFFIX "")
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endif()
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# Accept either the package root or its bin directory.
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if(NOT EXISTS "${TOOLCHAIN_DIRECTORY}/arm-none-eabi-gcc${TOOLCHAIN_SUFFIX}" AND
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EXISTS "${TOOLCHAIN_DIRECTORY}/bin/arm-none-eabi-gcc${TOOLCHAIN_SUFFIX}")
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set(TOOLCHAIN_DIRECTORY "${TOOLCHAIN_DIRECTORY}/bin")
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endif()
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set(_ARM_GCC_EXECUTABLE "${TOOLCHAIN_DIRECTORY}/arm-none-eabi-gcc${TOOLCHAIN_SUFFIX}")
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set(_TOOLCHAIN_BINARIES
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arm-none-eabi-gcc
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arm-none-eabi-g++
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arm-none-eabi-gdb
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arm-none-eabi-ar
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arm-none-eabi-ranlib
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arm-none-eabi-as
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arm-none-eabi-ld
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arm-none-eabi-objcopy
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arm-none-eabi-objdump
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arm-none-eabi-size
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)
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foreach(_binary IN LISTS _TOOLCHAIN_BINARIES)
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if(NOT EXISTS "${TOOLCHAIN_DIRECTORY}/${_binary}${TOOLCHAIN_SUFFIX}")
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message(FATAL_ERROR
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"ARM GCC toolchain is incomplete; missing ${_binary}${TOOLCHAIN_SUFFIX} in ${TOOLCHAIN_DIRECTORY}")
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endif()
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endforeach()
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set(CMAKE_C_FLAGS_DEBUG "")
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set(CMAKE_CXX_FLAGS_DEBUG "")
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set(CMAKE_ASM_FLAGS_DEBUG "")
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@@ -26,18 +64,10 @@ set(CMAKE_C_FLAGS_RELEASE "")
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set(CMAKE_CXX_FLAGS_RELEASE "")
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set(CMAKE_ASM_FLAGS_RELEASE "")
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if(NOT TOOLCHAIN_DIRECTORY)
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message(FATAL_ERROR "Cannot find ARM GCC toolchain. Set TOOLCHAIN_DIRECTORY cache variable or install toolchain in one of the default locations.")
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endif()
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set(CMAKE_COLOR_DIAGNOSTICS ON)
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
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if(WIN32)
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set(TOOLCHAIN_SUFFIX ".exe")
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endif()
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set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_SYSTEM_PROCESSOR arm)
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@@ -50,21 +80,48 @@ set(FLAGS "-mcpu=cortex-m23 -std=gnu11 -fstack-usage -
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set(ASM_FLAGS "-x assembler-with-cpp")
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set(CPP_FLAGS "-fno-rtti -fno-exceptions -fno-threadsafe-statics")
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set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}gcc${TOOLCHAIN_SUFFIX})
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}g++${TOOLCHAIN_SUFFIX})
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set(CMAKE_ASM_COMPILER ${TOOLCHAIN_PREFIX}gcc${TOOLCHAIN_SUFFIX})
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set(_REQUESTED_C_COMPILER "${TOOLCHAIN_PREFIX}gcc${TOOLCHAIN_SUFFIX}")
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if(DEFINED CMAKE_C_COMPILER AND CMAKE_C_COMPILER AND
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IS_ABSOLUTE "${CMAKE_C_COMPILER}" AND
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NOT CMAKE_C_COMPILER STREQUAL "${_REQUESTED_C_COMPILER}")
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message(FATAL_ERROR
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"The build directory is already configured for a different ARM GCC compiler:\n"
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" cached: ${CMAKE_C_COMPILER}\n"
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" selected: ${_REQUESTED_C_COMPILER}\n"
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"Delete the build directory or run CMake Tools 'Delete Cache and Reconfigure'.")
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endif()
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set(CMAKE_C_COMPILER "${_REQUESTED_C_COMPILER}")
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set(CMAKE_CXX_COMPILER "${TOOLCHAIN_PREFIX}g++${TOOLCHAIN_SUFFIX}")
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set(CMAKE_ASM_COMPILER "${TOOLCHAIN_PREFIX}gcc${TOOLCHAIN_SUFFIX}")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FLAGS} ${CPP_FLAGS}")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${FLAGS} ${ASM_FLAGS}")
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set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy${TOOLCHAIN_SUFFIX})
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set(CMAKE_SIZE ${TOOLCHAIN_PREFIX}size${TOOLCHAIN_SUFFIX})
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set(CMAKE_OBJDUMP ${TOOLCHAIN_PREFIX}objdump${TOOLCHAIN_SUFFIX})
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set(CMAKE_AS ${TOOLCHAIN_PREFIX}as${TOOLCHAIN_SUFFIX})
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set(CMAKE_LD ${TOOLCHAIN_PREFIX}ld${TOOLCHAIN_SUFFIX})
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set(CMAKE_AR "${TOOLCHAIN_PREFIX}ar${TOOLCHAIN_SUFFIX}")
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set(CMAKE_RANLIB "${TOOLCHAIN_PREFIX}ranlib${TOOLCHAIN_SUFFIX}")
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set(CMAKE_OBJCOPY "${TOOLCHAIN_PREFIX}objcopy${TOOLCHAIN_SUFFIX}")
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set(CMAKE_SIZE "${TOOLCHAIN_PREFIX}size${TOOLCHAIN_SUFFIX}")
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set(CMAKE_OBJDUMP "${TOOLCHAIN_PREFIX}objdump${TOOLCHAIN_SUFFIX}")
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set(CMAKE_AS "${TOOLCHAIN_PREFIX}as${TOOLCHAIN_SUFFIX}")
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set(CMAKE_LD "${TOOLCHAIN_PREFIX}ld${TOOLCHAIN_SUFFIX}")
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set(CMAKE_LINKER "${TOOLCHAIN_PREFIX}ld${TOOLCHAIN_SUFFIX}")
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execute_process(
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COMMAND "${_ARM_GCC_EXECUTABLE}" --version
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OUTPUT_VARIABLE _ARM_GCC_VERSION_OUTPUT
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ERROR_VARIABLE _ARM_GCC_VERSION_ERROR
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RESULT_VARIABLE _ARM_GCC_VERSION_RESULT
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT _ARM_GCC_VERSION_RESULT EQUAL 0)
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message(FATAL_ERROR "Unable to execute ${_ARM_GCC_EXECUTABLE}: ${_ARM_GCC_VERSION_ERROR}")
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endif()
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string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" _ARM_GCC_VERSION "${_ARM_GCC_VERSION_OUTPUT}")
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message(STATUS "Using ARM GCC ${_ARM_GCC_VERSION} from ${TOOLCHAIN_DIRECTORY}")
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set(CMAKE_EXECUTABLE_SUFFIX_ASM ".elf")
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set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
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set(CMAKE_EXECUTABLE_SUFFIX_CXX ".elf")
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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