0e6ede8929
This commit renames the Kconfig `FLOAT` symbol to `FPU`, since this symbol only indicates that the hardware Floating Point Unit (FPU) is used and does not imply and/or indicate the general availability of toolchain-level floating point support (i.e. this symbol is not selected when building for an FPU-less platform that supports floating point operations through the toolchain-provided software floating point library). Moreover, given that the symbol that indicates the availability of FPU is named `CPU_HAS_FPU`, it only makes sense to use "FPU" in the name of the symbol that enables the FPU. Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
44 lines
1.4 KiB
CMake
44 lines
1.4 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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if(CONFIG_ARM64)
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list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
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list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=${GCC_M_CPU})
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=lp64)
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list(APPEND TOOLCHAIN_LD_FLAGS -mabi=lp64)
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else()
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list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
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list(APPEND TOOLCHAIN_LD_FLAGS -mcpu=${GCC_M_CPU})
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if(CONFIG_COMPILER_ISA_THUMB2)
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list(APPEND TOOLCHAIN_C_FLAGS -mthumb)
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list(APPEND TOOLCHAIN_LD_FLAGS -mthumb)
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=aapcs)
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list(APPEND TOOLCHAIN_LD_FLAGS -mabi=aapcs)
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# Defines a mapping from GCC_M_CPU to FPU
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if(CONFIG_CPU_HAS_FPU_DOUBLE_PRECISION)
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set(PRECISION_TOKEN)
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else()
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set(PRECISION_TOKEN sp-)
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endif()
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set(FPU_FOR_cortex-m4 fpv4-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m7 fpv5-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m33 fpv5-${PRECISION_TOKEN}d16)
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if(CONFIG_FPU)
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list(APPEND TOOLCHAIN_C_FLAGS -mfpu=${FPU_FOR_${GCC_M_CPU}})
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list(APPEND TOOLCHAIN_LD_FLAGS -mfpu=${FPU_FOR_${GCC_M_CPU}})
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if (CONFIG_FP_SOFTABI)
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list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=softfp)
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list(APPEND TOOLCHAIN_LD_FLAGS -mfloat-abi=softfp)
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elseif(CONFIG_FP_HARDABI)
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list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=hard)
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list(APPEND TOOLCHAIN_LD_FLAGS -mfloat-abi=hard)
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endif()
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endif()
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endif()
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