diff options
Diffstat (limited to 'arch/riscv/Makefile')
| -rw-r--r-- | arch/riscv/Makefile | 75 |
1 files changed, 56 insertions, 19 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 252d63942f34..06de9d365088 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -34,6 +34,9 @@ ifeq ($(CONFIG_ARCH_RV64I),y) KBUILD_AFLAGS += -mabi=lp64 KBUILD_LDFLAGS += -melf64lriscv + + KBUILD_RUSTFLAGS += -Ctarget-cpu=generic-rv64 --target=riscv64imac-unknown-none-elf \ + -Cno-redzone else BITS := 32 UTS_MACHINE := riscv32 @@ -68,6 +71,10 @@ riscv-march-$(CONFIG_FPU) := $(riscv-march-y)fd riscv-march-$(CONFIG_RISCV_ISA_C) := $(riscv-march-y)c riscv-march-$(CONFIG_RISCV_ISA_V) := $(riscv-march-y)v +ifneq ($(CONFIG_RISCV_ISA_C),y) + KBUILD_RUSTFLAGS += -Ctarget-feature=-c +endif + ifdef CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC KBUILD_CFLAGS += -Wa,-misa-spec=2.2 KBUILD_AFLAGS += -Wa,-misa-spec=2.2 @@ -84,6 +91,9 @@ KBUILD_CFLAGS += -march=$(shell echo $(riscv-march-y) | sed -E 's/(rv32ima|rv64i KBUILD_AFLAGS += -march=$(riscv-march-y) +# For C code built with floating-point support, exclude V but keep F and D. +CC_FLAGS_FPU := -march=$(shell echo $(riscv-march-y) | sed -E 's/(rv32ima|rv64ima)([^v_]*)v?/\1\2/') + KBUILD_CFLAGS += -mno-save-restore KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET) @@ -133,8 +143,31 @@ boot := arch/riscv/boot ifeq ($(CONFIG_XIP_KERNEL),y) KBUILD_IMAGE := $(boot)/xipImage else +ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAAN_K210),yy) +KBUILD_IMAGE := $(boot)/loader.bin +else +ifeq ($(CONFIG_EFI_ZBOOT),) KBUILD_IMAGE := $(boot)/Image.gz +else +KBUILD_IMAGE := $(boot)/vmlinuz.efi +endif +endif +endif + +boot := arch/riscv/boot +boot-image-y := Image +boot-image-$(CONFIG_KERNEL_BZIP2) := Image.bz2 +boot-image-$(CONFIG_KERNEL_GZIP) := Image.gz +boot-image-$(CONFIG_KERNEL_LZ4) := Image.lz4 +boot-image-$(CONFIG_KERNEL_LZMA) := Image.lzma +boot-image-$(CONFIG_KERNEL_LZO) := Image.lzo +boot-image-$(CONFIG_KERNEL_ZSTD) := Image.zst +ifdef CONFIG_RISCV_M_MODE +boot-image-$(CONFIG_ARCH_CANAAN) := loader.bin endif +boot-image-$(CONFIG_EFI_ZBOOT) := vmlinuz.efi +boot-image-$(CONFIG_XIP_KERNEL) := xipImage +KBUILD_IMAGE := $(boot)/$(boot-image-y) libs-y += arch/riscv/lib/ libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a @@ -151,34 +184,21 @@ endif endif vdso-install-y += arch/riscv/kernel/vdso/vdso.so.dbg -vdso-install-$(CONFIG_COMPAT) += arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg:../compat_vdso/compat_vdso.so +vdso-install-$(CONFIG_COMPAT) += arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg -ifneq ($(CONFIG_XIP_KERNEL),y) -ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_ARCH_CANAAN),yy) -KBUILD_IMAGE := $(boot)/loader.bin -else -ifeq ($(CONFIG_EFI_ZBOOT),) -KBUILD_IMAGE := $(boot)/Image.gz -else -KBUILD_IMAGE := $(boot)/vmlinuz.efi -endif -endif -endif -BOOT_TARGETS := Image Image.gz loader loader.bin xipImage vmlinuz.efi +BOOT_TARGETS := Image Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst loader loader.bin xipImage vmlinuz.efi all: $(notdir $(KBUILD_IMAGE)) loader.bin: loader -Image.gz loader vmlinuz.efi: Image +Image.gz Image.bz2 Image.lz4 Image.lzma Image.lzo Image.zst loader xipImage vmlinuz.efi: Image + $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ @$(kecho) ' Kernel: $(boot)/$@ is ready' -Image.%: Image - $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ - -install: KBUILD_IMAGE := $(boot)/Image -zinstall: KBUILD_IMAGE := $(boot)/Image.gz +# the install target always installs KBUILD_IMAGE (which may be compressed) +# but keep the zinstall target for compatibility with older releases install zinstall: $(call cmd,install) @@ -199,3 +219,20 @@ rv32_defconfig: PHONY += rv32_nommu_virt_defconfig rv32_nommu_virt_defconfig: $(Q)$(MAKE) -f $(srctree)/Makefile nommu_virt_defconfig 32-bit.config + +define archhelp + echo ' Image - Uncompressed kernel image (arch/riscv/boot/Image)' + echo ' Image.gz - Compressed kernel image (arch/riscv/boot/Image.gz)' + echo ' Image.bz2 - Compressed kernel image (arch/riscv/boot/Image.bz2)' + echo ' Image.lz4 - Compressed kernel image (arch/riscv/boot/Image.lz4)' + echo ' Image.lzma - Compressed kernel image (arch/riscv/boot/Image.lzma)' + echo ' Image.lzo - Compressed kernel image (arch/riscv/boot/Image.lzo)' + echo ' Image.zst - Compressed kernel image (arch/riscv/boot/Image.zst)' + echo ' vmlinuz.efi - Compressed EFI kernel image (arch/riscv/boot/vmlinuz.efi)' + echo ' Default when CONFIG_EFI_ZBOOT=y' + echo ' xipImage - Execute-in-place kernel image (arch/riscv/boot/xipImage)' + echo ' Default when CONFIG_XIP_KERNEL=y' + echo ' install - Install kernel using (your) ~/bin/$(INSTALLKERNEL) or' + echo ' (distribution) /sbin/$(INSTALLKERNEL) or install to ' + echo ' $$(INSTALL_PATH)' +endef |