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https://github.com/zephyrproject-rtos/zephyr
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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>
35 lines
1015 B
CMake
35 lines
1015 B
CMake
# SPDX-License-Identifier: Apache-2.0
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set(riscv_mabi "lp")
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set(riscv_march "rv")
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if(CONFIG_64BIT)
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string(CONCAT riscv_mabi ${riscv_mabi} "64")
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string(CONCAT riscv_march ${riscv_march} "64ima")
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list(APPEND TOOLCHAIN_C_FLAGS -mcmodel=medany)
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else()
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string(CONCAT riscv_mabi "i" ${riscv_mabi} "32")
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string(CONCAT riscv_march ${riscv_march} "32ima")
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endif()
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if(CONFIG_FPU)
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if(CONFIG_CPU_HAS_FPU_DOUBLE_PRECISION)
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if(CONFIG_FLOAT_HARD)
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string(CONCAT riscv_mabi ${riscv_mabi} "d")
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endif()
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string(CONCAT riscv_march ${riscv_march} "fd")
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else()
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if(CONFIG_FLOAT_HARD)
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string(CONCAT riscv_mabi ${riscv_mabi} "f")
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endif()
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string(CONCAT riscv_march ${riscv_march} "f")
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endif()
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endif()
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if(CONFIG_COMPRESSED_ISA)
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string(CONCAT riscv_march ${riscv_march} "c")
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=${riscv_mabi} -march=${riscv_march})
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list(APPEND TOOLCHAIN_LD_FLAGS -mabi=${riscv_mabi} -march=${riscv_march})
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