diff options
| author | Alan Kao <alankao@andestech.com> | 2018-10-09 10:18:32 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2018-10-22 17:02:23 -0700 |
| commit | e8be5302330281bd9f77834600f63e8cc4560d3d (patch) | |
| tree | 65db963e66831639dec543674167d53a71c1e98a /arch/riscv/Makefile | |
| parent | 007f5c35895786fdc797f13313b9493fe5d5e655 (diff) | |
| download | lwn-e8be5302330281bd9f77834600f63e8cc4560d3d.tar.gz lwn-e8be5302330281bd9f77834600f63e8cc4560d3d.zip | |
Cleanup ISA string setting
This patch cleanup the MARCH string passing to both compiler and
assembler. Note that the CFLAGS should not contain "fd" before we
have mechnisms like kernel_fpu_begin/end in other architectures.
Signed-off-by: Alan Kao <alankao@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Vincent Chen <vincentc@andestech.com>
Cc: Zong Li <zong@andestech.com>
Cc: Nick Hu <nickhu@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'arch/riscv/Makefile')
| -rw-r--r-- | arch/riscv/Makefile | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 61ec42405ec9..01393e1b2921 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -28,7 +28,6 @@ ifeq ($(CONFIG_ARCH_RV64I),y) KBUILD_CFLAGS += $(call cc-ifversion, -ge, 0500, -DCONFIG_ARCH_SUPPORTS_INT128) - KBUILD_MARCH = rv64im KBUILD_LDFLAGS += -melf64lriscv else BITS := 32 @@ -36,22 +35,20 @@ else KBUILD_CFLAGS += -mabi=ilp32 KBUILD_AFLAGS += -mabi=ilp32 - KBUILD_MARCH = rv32im KBUILD_LDFLAGS += -melf32lriscv endif KBUILD_CFLAGS += -Wall -ifeq ($(CONFIG_RISCV_ISA_A),y) - KBUILD_ARCH_A = a -endif -ifeq ($(CONFIG_RISCV_ISA_C),y) - KBUILD_ARCH_C = c -endif - -KBUILD_AFLAGS += -march=$(KBUILD_MARCH)$(KBUILD_ARCH_A)fd$(KBUILD_ARCH_C) +# ISA string setting +riscv-march-$(CONFIG_ARCH_RV32I) := rv32im +riscv-march-$(CONFIG_ARCH_RV64I) := rv64im +riscv-march-$(CONFIG_RISCV_ISA_A) := $(riscv-march-y)a +riscv-march-y := $(riscv-march-y)fd +riscv-march-$(CONFIG_RISCV_ISA_C) := $(riscv-march-y)c +KBUILD_CFLAGS += -march=$(subst fd,,$(riscv-march-y)) +KBUILD_AFLAGS += -march=$(riscv-march-y) -KBUILD_CFLAGS += -march=$(KBUILD_MARCH)$(KBUILD_ARCH_A)$(KBUILD_ARCH_C) KBUILD_CFLAGS += -mno-save-restore KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET) |