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	Makefile	6.15 MB		View DL Edit
	Makefile.zboot	1.88 MB		View DL Edit

Edit file: /usr/src/kernels/5.14.0-611.34.1.el9_7.x86_64/drivers/firmware/efi/libstub/Makefile.zboot

# SPDX-License-Identifier: GPL-2.0

# to be include'd by arch/$(ARCH)/boot/Makefile after setting
# EFI_ZBOOT_PAYLOAD, EFI_ZBOOT_BFD_TARGET and EFI_ZBOOT_MACH_TYPE

comp-type-$(CONFIG_KERNEL_GZIP)		:= gzip
comp-type-$(CONFIG_KERNEL_LZ4)		:= lz4
comp-type-$(CONFIG_KERNEL_LZMA)		:= lzma
comp-type-$(CONFIG_KERNEL_LZO)		:= lzo
comp-type-$(CONFIG_KERNEL_XZ)		:= xzkern
comp-type-$(CONFIG_KERNEL_ZSTD)		:= zstd22

# Copy the SizeOfHeaders, SizeOfCode and SizeOfImage fields from the payload to
# the end of the compressed image. Note that this presupposes a PE header
# offset of 64 bytes, which is what arm64, RISC-V and LoongArch use.
quiet_cmd_compwithsize = $(quiet_cmd_$(comp-type-y))
      cmd_compwithsize = $(cmd_$(comp-type-y)) && ( \
			   dd status=none if=$< bs=4 count=1 skip=37 ; \
			   dd status=none if=$< bs=4 count=1 skip=23 ; \
			   dd status=none if=$< bs=4 count=1 skip=36 ) >> $@

$(obj)/vmlinuz: $(obj)/$(EFI_ZBOOT_PAYLOAD) FORCE
	$(call if_changed,compwithsize)

OBJCOPYFLAGS_vmlinuz.o := -I binary -O $(EFI_ZBOOT_BFD_TARGET) \
			  --rename-section .data=.gzdata,load,alloc,readonly,contents
$(obj)/vmlinuz.o: $(obj)/vmlinuz FORCE
	$(call if_changed,objcopy)

AFLAGS_zboot-header.o += -DMACHINE_TYPE=IMAGE_FILE_MACHINE_$(EFI_ZBOOT_MACH_TYPE) \
			 -DZBOOT_EFI_PATH="\"$(realpath $(obj)/vmlinuz.efi.elf)\"" \
			 -DCOMP_TYPE="\"$(comp-type-y)\""

$(obj)/zboot-header.o: $(srctree)/drivers/firmware/efi/libstub/zboot-header.S FORCE
	$(call if_changed_rule,as_o_S)

ZBOOT_DEPS := $(obj)/zboot-header.o $(objtree)/drivers/firmware/efi/libstub/lib.a

LDFLAGS_vmlinuz.efi.elf := -T $(srctree)/drivers/firmware/efi/libstub/zboot.lds
$(obj)/vmlinuz.efi.elf: $(obj)/vmlinuz.o $(ZBOOT_DEPS) FORCE
	$(call if_changed,ld)

OBJCOPYFLAGS_vmlinuz.efi := -O binary
$(obj)/vmlinuz.efi: $(obj)/vmlinuz.efi.elf FORCE
	$(call if_changed,objcopy)

targets += zboot-header.o vmlinuz vmlinuz.o vmlinuz.efi.elf vmlinuz.efi

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