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93 lines
2.4 KiB
93 lines
2.4 KiB
# 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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) |