diff options
Diffstat (limited to 'arch/riscv/Makefile')
| -rw-r--r-- | arch/riscv/Makefile | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 6719dd30ec5b..d10146197533 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -8,9 +8,11 @@ # for more details. # -LDFLAGS := OBJCOPYFLAGS := -O binary LDFLAGS_vmlinux := +ifeq ($(CONFIG_DYNAMIC_FTRACE),y) + LDFLAGS_vmlinux := --no-relax +endif KBUILD_AFLAGS_MODULE += -fPIC KBUILD_CFLAGS_MODULE += -fPIC @@ -23,30 +25,28 @@ ifeq ($(CONFIG_ARCH_RV64I),y) KBUILD_CFLAGS += -mabi=lp64 KBUILD_AFLAGS += -mabi=lp64 - KBUILD_MARCH = rv64im - LDFLAGS += -melf64lriscv + + KBUILD_LDFLAGS += -melf64lriscv else BITS := 32 UTS_MACHINE := riscv32 KBUILD_CFLAGS += -mabi=ilp32 KBUILD_AFLAGS += -mabi=ilp32 - KBUILD_MARCH = rv32im - LDFLAGS += -melf32lriscv + 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) := $(riscv-march-y)a +riscv-march-$(CONFIG_FPU) := $(riscv-march-y)fd +riscv-march-$(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) @@ -56,6 +56,11 @@ endif ifeq ($(CONFIG_CMODEL_MEDANY),y) KBUILD_CFLAGS += -mcmodel=medany endif +ifeq ($(CONFIG_MODULE_SECTIONS),y) + KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/riscv/kernel/module.lds +endif + +KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) # GCC versions that support the "-mstrict-align" option default to allowing # unaligned accesses. While unaligned accesses are explicitly allowed in the @@ -63,6 +68,9 @@ endif # architectures. It's faster to have GCC emit only aligned accesses. KBUILD_CFLAGS += $(call cc-option,-mstrict-align) +# arch specific predefines for sparse +CHECKFLAGS += -D__riscv -D__riscv_xlen=$(BITS) + head-y := arch/riscv/kernel/head.o core-y += arch/riscv/kernel/ arch/riscv/mm/ |