97a734aa01
Ensure --target and -mcpu/-mfpu/-mtune are set appropriately when building with clang targeting arm64/aarch64. Signed-off-by: Jonathon Penix <jpenix@quicinc.com>
62 lines
1.8 KiB
CMake
62 lines
1.8 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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if(CONFIG_LLVM_USE_LD)
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set(LINKER ld)
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elseif(CONFIG_LLVM_USE_LLD)
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set(LINKER lld)
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endif()
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if("${ARCH}" STREQUAL "arm")
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if(DEFINED CONFIG_ARMV8_M_MAINLINE)
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# ARMv8-M mainline is ARMv7-M with additional features from ARMv8-M.
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set(triple armv8m.main-none-eabi)
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elseif(DEFINED CONFIG_ARMV8_M_BASELINE)
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# ARMv8-M baseline is ARMv6-M with additional features from ARMv8-M.
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set(triple armv8m.base-none-eabi)
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elseif(DEFINED CONFIG_ARMV7_M_ARMV8_M_MAINLINE)
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# ARMV7_M_ARMV8_M_MAINLINE means that ARMv7-M or backward compatible ARMv8-M
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# processor is used.
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set(triple armv7m-none-eabi)
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elseif(DEFINED CONFIG_ARMV6_M_ARMV8_M_BASELINE)
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# ARMV6_M_ARMV8_M_BASELINE means that ARMv6-M or ARMv8-M supporting the
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# Baseline implementation processor is used.
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set(triple armv6m-none-eabi)
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else()
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# Default ARM target supported by all processors.
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set(triple arm-none-eabi)
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endif()
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elseif("${ARCH}" STREQUAL "arm64")
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set(triple aarch64-none-elf)
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elseif("${ARCH}" STREQUAL "x86")
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if(CONFIG_64BIT)
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set(triple x86_64-pc-none-elf)
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else()
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set(triple i686-pc-none-elf)
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endif()
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elseif("${ARCH}" STREQUAL "riscv")
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if(CONFIG_64BIT)
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set(triple riscv64-unknown-elf)
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else()
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set(triple riscv32-unknown-elf)
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endif()
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endif()
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if(DEFINED triple)
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set(CMAKE_C_COMPILER_TARGET ${triple})
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set(CMAKE_ASM_COMPILER_TARGET ${triple})
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set(CMAKE_CXX_COMPILER_TARGET ${triple})
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unset(triple)
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endif()
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if(CONFIG_LIBGCC_RTLIB)
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set(runtime_lib "libgcc")
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elseif(CONFIG_COMPILER_RT_RTLIB)
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set(runtime_lib "compiler_rt")
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS --config
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${ZEPHYR_BASE}/cmake/toolchain/llvm/clang_${runtime_lib}.cfg)
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list(APPEND TOOLCHAIN_LD_FLAGS --config
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${ZEPHYR_BASE}/cmake/toolchain/llvm/clang_${runtime_lib}.cfg)
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