2021-08-05 19:42:58 +08:00
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cmake_minimum_required(VERSION 3.5)
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2020-04-15 22:45:20 +08:00
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if(COMMAND toolchain_save_config)
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return() # prevent recursive call
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endif()
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set(CMAKE_SYSTEM_NAME Linux)
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set(CMAKE_SYSTEM_VERSION 1)
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include("${CMAKE_CURRENT_LIST_DIR}/gnu.toolchain.cmake")
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MESSAGE(STATUS "Debug: CMAKE_C_COMPILER: ${CMAKE_C_COMPILER}")
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if(NOT "x${GCC_COMPILER_VERSION}" STREQUAL "x")
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set(__GCC_VER_SUFFIX "-${GCC_COMPILER_VERSION}")
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endif()
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if(NOT DEFINED CMAKE_C_COMPILER)
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MESSAGE("Looking for compler.. ${GNU_MACHINE}-gcc${__GCC_VER_SUFFIX}")
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find_program(CMAKE_C_COMPILER NAMES ${GNU_MACHINE}-gcc${__GCC_VER_SUFFIX})
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else()
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#message(WARNING "CMAKE_C_COMPILER=${CMAKE_C_COMPILER} is defined")
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endif()
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if(NOT DEFINED CMAKE_CXX_COMPILER)
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find_program(CMAKE_CXX_COMPILER NAMES ${GNU_MACHINE}-g++${__GCC_VER_SUFFIX})
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else()
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#message(WARNING "CMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} is defined")
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endif()
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if(NOT DEFINED CMAKE_LINKER)
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find_program(CMAKE_LINKER NAMES ${GNU_MACHINE}-ld${__GCC_VER_SUFFIX} ${GNU_MACHINE}-ld)
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else()
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#message(WARNING "CMAKE_LINKER=${CMAKE_LINKER} is defined")
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endif()
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if(NOT DEFINED CMAKE_AR)
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find_program(CMAKE_AR NAMES ${GNU_MACHINE}-ar${__GCC_VER_SUFFIX} ${GNU_MACHINE}-ar)
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else()
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#message(WARNING "CMAKE_AR=${CMAKE_AR} is defined")
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endif()
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if(NOT DEFINED RISCV_LINUX_SYSROOT AND DEFINED GNU_MACHINE)
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set(RISCV_LINUX_SYSROOT /usr/${GNU_MACHINE})
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endif()
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if(NOT DEFINED CMAKE_CXX_FLAGS)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdata-sections -Wa,--noexecstack -fsigned-char -Wno-psabi")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,nocopyreloc")
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set(RISCV_LINKER_FLAGS "-Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now")
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set(CMAKE_SHARED_LINKER_FLAGS "${RISCV_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}")
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set(CMAKE_MODULE_LINKER_FLAGS "${RISCV_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}")
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set(CMAKE_EXE_LINKER_FLAGS "${RISCV_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}")
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else()
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message(STATUS "User provided flags are used instead of defaults")
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endif()
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set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${RISCV_LINUX_SYSROOT})
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set(TOOLCHAIN_CONFIG_VARS ${TOOLCHAIN_CONFIG_VARS}
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RISCV_LINUX_SYSROOT
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)
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toolchain_save_config()
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