43 lines
1.2 KiB
CMake
43 lines
1.2 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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set(ARM_C_FLAGS)
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list(APPEND ARM_C_FLAGS -mcpu=${GCC_M_CPU})
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if(CONFIG_COMPILER_ISA_THUMB2)
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list(APPEND ARM_C_FLAGS -mthumb)
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endif()
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list(APPEND ARM_C_FLAGS -mabi=aapcs)
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if(CONFIG_FPU)
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list(APPEND ARM_C_FLAGS -mfpu=${GCC_M_FPU})
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if(CONFIG_DCLS AND NOT CONFIG_FP_HARDABI)
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# If the processor is equipped with VFP and configured in DCLS topology,
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# the FP "hard" ABI must be used in order to facilitate the FP register
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# initialisation and synchronisation.
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set(FORCE_FP_HARDABI TRUE)
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endif()
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if (CONFIG_FP_HARDABI OR FORCE_FP_HARDABI)
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list(APPEND ARM_C_FLAGS -mfloat-abi=hard)
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elseif(CONFIG_FP_SOFTABI)
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list(APPEND ARM_C_FLAGS -mfloat-abi=softfp)
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endif()
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else()
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list(APPEND ARM_C_FLAGS -mfpu=none)
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# Disable usage of FPU registers
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list(APPEND ARM_C_FLAGS -mfloat-abi=soft)
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endif()
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if(CONFIG_FP16)
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# Clang only supports IEEE 754-2008 format for __fp16. It's enabled by
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# default, so no need to do anything when CONFIG_FP16_IEEE is selected.
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if(CONFIG_FP16_ALT)
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message(FATAL_ERROR "Clang doesn't support ARM alternative format for FP16")
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endif()
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS ${ARM_C_FLAGS})
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list(APPEND TOOLCHAIN_LD_FLAGS NO_SPLIT ${ARM_C_FLAGS})
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