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fix: fix build for binutils 2.38 or later

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Signed-off-by: Han Gao <gaohan@iscas.ac.cn>
This commit is contained in:
Han Gao
2023-06-24 16:58:34 +08:00
committed by Han Gao
parent 1c1a707b48
commit 231409c0ed
1 changed files with 10 additions and 14 deletions
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24
arch/riscv/Makefile
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@@ -48,25 +48,21 @@ endif
endif
# ISA string setting
riscv-march-$(CONFIG_ARCH_RV32I) := rv32ima
riscv-march-$(CONFIG_ARCH_RV64I) := rv64ima
riscv-march-$(CONFIG_FPU) := $(riscv-march-y)fd
riscv-march-$(CONFIG_RISCV_ISA_C) := $(riscv-march-y)c
riscv-march-$(CONFIG_VECTOR_1_0) := $(riscv-march-y)v
riscv-march-$(CONFIG_VECTOR_0_7) := $(riscv-march-y)v0p7
riscv-march-$(CONFIG_THEAD_ISA) := $(riscv-march-y)_xtheadc
# Newer binutils versions default to ISA spec version 20191213 which moves some
# instructions from the I extension to the Zicsr and Zifencei extensions.
toolchain-need-zicsr-zifencei := $(call cc-option-yn, -march=$(riscv-march-y)_zicsr_zifencei)
riscv-march-$(toolchain-need-zicsr-zifencei) := $(riscv-march-y)_zicsr_zifencei
riscv-march-cflags-$(CONFIG_ARCH_RV32I) := rv32ima
riscv-march-cflags-$(CONFIG_ARCH_RV64I) := rv64ima
riscv-march-cflags-$(CONFIG_RISCV_ISA_C) := $(riscv-march-cflags-y)c
riscv-march-aflags-$(CONFIG_ARCH_RV32I) := rv32ima
riscv-march-aflags-$(CONFIG_ARCH_RV64I) := rv64ima
riscv-march-aflags-$(CONFIG_FPU) := $(riscv-march-aflags-y)fd
riscv-march-aflags-$(CONFIG_RISCV_ISA_C) := $(riscv-march-aflags-y)c
riscv-march-aflags-$(CONFIG_VECTOR_1_0) := $(riscv-march-aflags-y)v
riscv-march-aflags-$(CONFIG_VECTOR_0_7) := $(riscv-march-aflags-y)v0p7
riscv-march-aflags-$(CONFIG_THEAD_ISA) := $(riscv-march-aflags-y)_xtheadc
KBUILD_CFLAGS += -march=$(riscv-march-cflags-y) -Wa,-march=$(riscv-march-aflags-y)
KBUILD_AFLAGS += -march=$(riscv-march-aflags-y)
KBUILD_CFLAGS += -march=$(subst _xtheadc,,$(subst v0p7,,$(subst fd,,$(riscv-march-y))))
KBUILD_AFLAGS += -march=$(riscv-march-y)
KBUILD_CFLAGS += -mno-save-restore
KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET)