diff options
Diffstat (limited to 'arch/arm64/Makefile')
-rw-r--r-- | arch/arm64/Makefile | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 0e075d3c546b..f6bc3da1ef11 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -36,7 +36,14 @@ ifeq ($(CONFIG_BROKEN_GAS_INST),y) $(warning Detected assembler with broken .inst; disassembly will be unreliable) endif -KBUILD_CFLAGS += -mgeneral-regs-only \ +# The GCC option -ffreestanding is required in order to compile code containing +# ARM/NEON intrinsics in a non C99-compliant environment (such as the kernel) +CC_FLAGS_FPU := -ffreestanding +# Enable <arm_neon.h> +CC_FLAGS_FPU += -isystem $(shell $(CC) -print-file-name=include) +CC_FLAGS_NO_FPU := -mgeneral-regs-only + +KBUILD_CFLAGS += $(CC_FLAGS_NO_FPU) \ $(compat_vdso) $(cc_has_k_constraint) KBUILD_CFLAGS += $(call cc-disable-warning, psabi) KBUILD_AFLAGS += $(compat_vdso) @@ -154,6 +161,10 @@ libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a # Default target when executing plain make boot := arch/arm64/boot +BOOT_TARGETS := Image vmlinuz.efi image.fit + +PHONY += $(BOOT_TARGETS) + ifeq ($(CONFIG_EFI_ZBOOT),) KBUILD_IMAGE := $(boot)/Image.gz else @@ -162,14 +173,22 @@ endif all: $(notdir $(KBUILD_IMAGE)) -vmlinuz.efi: Image -Image vmlinuz.efi: vmlinux +image.fit: dtbs + +vmlinuz.efi image.fit: Image +$(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ Image.%: Image $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ -install: KBUILD_IMAGE := $(boot)/Image +ifeq ($(CONFIG_COMPRESSED_INSTALL),y) + DEFAULT_KBUILD_IMAGE = $(KBUILD_IMAGE) +else + DEFAULT_KBUILD_IMAGE = $(boot)/Image +endif + +install: KBUILD_IMAGE := $(DEFAULT_KBUILD_IMAGE) install zinstall: $(call cmd,install) @@ -215,7 +234,8 @@ virtconfig: define archhelp echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' - echo ' install - Install uncompressed kernel' + echo ' image.fit - Flat Image Tree (arch/$(ARCH)/boot/image.fit)' + echo ' install - Install kernel (compressed if COMPRESSED_INSTALL set)' echo ' zinstall - Install compressed kernel' echo ' Install using (your) ~/bin/installkernel or' echo ' (distribution) /sbin/installkernel or' |