Makefile.zboot (38c87827ffd3c7e1dd61eee9a7dea13d487dc2ed) Makefile.zboot (45dd403da851124412d32e3193c21de4a51d29da)
1# SPDX-License-Identifier: GPL-2.0
2
3# to be include'd by arch/$(ARCH)/boot/Makefile after setting
1# SPDX-License-Identifier: GPL-2.0
2
3# to be include'd by arch/$(ARCH)/boot/Makefile after setting
4# EFI_ZBOOT_PAYLOAD, EFI_ZBOOT_BFD_TARGET and EFI_ZBOOT_MACH_TYPE
4# EFI_ZBOOT_PAYLOAD, EFI_ZBOOT_BFD_TARGET, EFI_ZBOOT_MACH_TYPE and
5# EFI_ZBOOT_FORWARD_CFI
5
6
7quiet_cmd_copy_and_pad = PAD $@
8 cmd_copy_and_pad = cp $< $@ && \
9 truncate -s $(shell hexdump -s16 -n4 -e '"%u"' $<) $@
10
11# Pad the file to the size of the uncompressed image in memory, including BSS
12$(obj)/vmlinux.bin: $(obj)/$(EFI_ZBOOT_PAYLOAD) FORCE
13 $(call if_changed,copy_and_pad)
14
6comp-type-$(CONFIG_KERNEL_GZIP) := gzip
7comp-type-$(CONFIG_KERNEL_LZ4) := lz4
8comp-type-$(CONFIG_KERNEL_LZMA) := lzma
9comp-type-$(CONFIG_KERNEL_LZO) := lzo
10comp-type-$(CONFIG_KERNEL_XZ) := xzkern
11comp-type-$(CONFIG_KERNEL_ZSTD) := zstd22
12
15comp-type-$(CONFIG_KERNEL_GZIP) := gzip
16comp-type-$(CONFIG_KERNEL_LZ4) := lz4
17comp-type-$(CONFIG_KERNEL_LZMA) := lzma
18comp-type-$(CONFIG_KERNEL_LZO) := lzo
19comp-type-$(CONFIG_KERNEL_XZ) := xzkern
20comp-type-$(CONFIG_KERNEL_ZSTD) := zstd22
21
13# Copy the SizeOfHeaders, SizeOfCode and SizeOfImage fields from the payload to
14# the end of the compressed image. Note that this presupposes a PE header
15# offset of 64 bytes, which is what arm64, RISC-V and LoongArch use.
16quiet_cmd_compwithsize = $(quiet_cmd_$(comp-type-y))
17 cmd_compwithsize = $(cmd_$(comp-type-y)) && ( \
22# in GZIP, the appended le32 carrying the uncompressed size is part of the
23# format, but in other cases, we just append it at the end for convenience,
24# causing the original tools to complain when checking image integrity.
25# So disregard it when calculating the payload size in the zimage header.
26zboot-method-y := $(comp-type-y)_with_size
27zboot-size-len-y := 12
28
29zboot-method-$(CONFIG_KERNEL_GZIP) := gzip
30zboot-size-len-$(CONFIG_KERNEL_GZIP) := 8
31
32# Copy the SizeOfHeaders and SizeOfCode fields from the payload to the end of
33# the compressed image. Note that this presupposes a PE header offset of 64
34# bytes, which is what arm64, RISC-V and LoongArch use.
35quiet_cmd_compwithsize = $(quiet_cmd_$(zboot-method-y))
36 cmd_compwithsize = $(cmd_$(zboot-method-y)) && ( \
18 dd status=none if=$< bs=4 count=1 skip=37 ; \
37 dd status=none if=$< bs=4 count=1 skip=37 ; \
19 dd status=none if=$< bs=4 count=1 skip=23 ; \
20 dd status=none if=$< bs=4 count=1 skip=36 ) >> $@
38 dd status=none if=$< bs=4 count=1 skip=23 ) >> $@
21
39
22$(obj)/vmlinuz: $(obj)/$(EFI_ZBOOT_PAYLOAD) FORCE
40$(obj)/vmlinuz: $(obj)/vmlinux.bin FORCE
23 $(call if_changed,compwithsize)
24
41 $(call if_changed,compwithsize)
42
25OBJCOPYFLAGS_vmlinuz.o := -I binary -O $(EFI_ZBOOT_BFD_TARGET) \
43OBJCOPYFLAGS_vmlinuz.o := -I binary -O $(EFI_ZBOOT_BFD_TARGET) $(EFI_ZBOOT_OBJCOPY_FLAGS) \
26 --rename-section .data=.gzdata,load,alloc,readonly,contents
27$(obj)/vmlinuz.o: $(obj)/vmlinuz FORCE
28 $(call if_changed,objcopy)
29
44 --rename-section .data=.gzdata,load,alloc,readonly,contents
45$(obj)/vmlinuz.o: $(obj)/vmlinuz FORCE
46 $(call if_changed,objcopy)
47
48aflags-zboot-header-$(EFI_ZBOOT_FORWARD_CFI) := \
49 -DPE_DLL_CHAR_EX=IMAGE_DLLCHARACTERISTICS_EX_FORWARD_CFI_COMPAT
50
30AFLAGS_zboot-header.o += -DMACHINE_TYPE=IMAGE_FILE_MACHINE_$(EFI_ZBOOT_MACH_TYPE) \
31 -DZBOOT_EFI_PATH="\"$(realpath $(obj)/vmlinuz.efi.elf)\"" \
51AFLAGS_zboot-header.o += -DMACHINE_TYPE=IMAGE_FILE_MACHINE_$(EFI_ZBOOT_MACH_TYPE) \
52 -DZBOOT_EFI_PATH="\"$(realpath $(obj)/vmlinuz.efi.elf)\"" \
32 -DCOMP_TYPE="\"$(comp-type-y)\""
53 -DZBOOT_SIZE_LEN=$(zboot-size-len-y) \
54 -DCOMP_TYPE="\"$(comp-type-y)\"" \
55 $(aflags-zboot-header-y)
33
34$(obj)/zboot-header.o: $(srctree)/drivers/firmware/efi/libstub/zboot-header.S FORCE
35 $(call if_changed_rule,as_o_S)
36
37ZBOOT_DEPS := $(obj)/zboot-header.o $(objtree)/drivers/firmware/efi/libstub/lib.a
38
39LDFLAGS_vmlinuz.efi.elf := -T $(srctree)/drivers/firmware/efi/libstub/zboot.lds
40$(obj)/vmlinuz.efi.elf: $(obj)/vmlinuz.o $(ZBOOT_DEPS) FORCE
41 $(call if_changed,ld)
42
43OBJCOPYFLAGS_vmlinuz.efi := -O binary
44$(obj)/vmlinuz.efi: $(obj)/vmlinuz.efi.elf FORCE
45 $(call if_changed,objcopy)
46
56
57$(obj)/zboot-header.o: $(srctree)/drivers/firmware/efi/libstub/zboot-header.S FORCE
58 $(call if_changed_rule,as_o_S)
59
60ZBOOT_DEPS := $(obj)/zboot-header.o $(objtree)/drivers/firmware/efi/libstub/lib.a
61
62LDFLAGS_vmlinuz.efi.elf := -T $(srctree)/drivers/firmware/efi/libstub/zboot.lds
63$(obj)/vmlinuz.efi.elf: $(obj)/vmlinuz.o $(ZBOOT_DEPS) FORCE
64 $(call if_changed,ld)
65
66OBJCOPYFLAGS_vmlinuz.efi := -O binary
67$(obj)/vmlinuz.efi: $(obj)/vmlinuz.efi.elf FORCE
68 $(call if_changed,objcopy)
69
47targets += zboot-header.o vmlinuz vmlinuz.o vmlinuz.efi.elf vmlinuz.efi
70targets += zboot-header.o vmlinux.bin vmlinuz vmlinuz.o vmlinuz.efi.elf vmlinuz.efi