93 lines
2.4 KiB
CMake
93 lines
2.4 KiB
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} "64")
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list(APPEND TOOLCHAIN_C_FLAGS -mcmodel=medany)
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list(APPEND TOOLCHAIN_LD_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} "32")
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endif()
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if (CONFIG_RISCV_ISA_RV32E)
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string(CONCAT riscv_mabi ${riscv_mabi} "e")
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string(CONCAT riscv_march ${riscv_march} "e")
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else()
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string(CONCAT riscv_march ${riscv_march} "i")
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endif()
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if (CONFIG_RISCV_ISA_EXT_M)
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string(CONCAT riscv_march ${riscv_march} "m")
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endif()
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if (CONFIG_RISCV_ISA_EXT_A)
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string(CONCAT riscv_march ${riscv_march} "a")
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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_RISCV_ISA_EXT_C)
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string(CONCAT riscv_march ${riscv_march} "c")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZICSR)
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string(CONCAT riscv_march ${riscv_march} "_zicsr")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZIFENCEI)
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string(CONCAT riscv_march ${riscv_march} "_zifencei")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZBA)
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string(CONCAT riscv_march ${riscv_march} "_zba")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZBB)
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string(CONCAT riscv_march ${riscv_march} "_zbb")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZBC)
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string(CONCAT riscv_march ${riscv_march} "_zbc")
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endif()
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if(CONFIG_RISCV_ISA_EXT_ZBS)
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string(CONCAT riscv_march ${riscv_march} "_zbs")
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=${riscv_mabi} -march=${riscv_march})
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list(APPEND TOOLCHAIN_LD_FLAGS NO_SPLIT -mabi=${riscv_mabi} -march=${riscv_march})
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# Flags not supported by llext linker
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# (regexps are supported and match whole word)
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set(LLEXT_REMOVE_FLAGS
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-fno-pic
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-fno-pie
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-ffunction-sections
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-fdata-sections
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-g.*
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-Os
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)
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# Flags to be added to llext code compilation
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# mno-relax is needed to stop gcc from generating R_RISCV_ALIGN relocations,
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# which are currently not supported
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set(LLEXT_APPEND_FLAGS
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-mabi=${riscv_mabi}
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-march=${riscv_march}
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-mno-relax
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) |