xref: /openbmc/linux/arch/sh/boot/compressed/Makefile (revision 55fd7e02) 
1# SPDX-License-Identifier: GPL-2.0
2#
3# linux/arch/sh/boot/compressed/Makefile
4#
5# create a compressed vmlinux image from the original vmlinux
6#
7
8targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
9		   vmlinux.bin.bz2 vmlinux.bin.lzma \
10		   vmlinux.bin.xz vmlinux.bin.lzo \
11		   head_32.o misc.o piggy.o
12
13OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o
14
15GCOV_PROFILE := n
16
17#
18# IMAGE_OFFSET is the load offset of the compression loader
19#
20ifeq ($(CONFIG_32BIT),y)
21IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
22		     $$[$(CONFIG_MEMORY_START)  + \
23			$(CONFIG_BOOT_LINK_OFFSET)]')
24else
25IMAGE_OFFSET	:= $(shell /bin/bash -c 'printf "0x%08x" \
26		     $$[$(CONFIG_PAGE_OFFSET)  + \
27			$(KERNEL_MEMORY) + \
28			$(CONFIG_BOOT_LINK_OFFSET)]')
29endif
30
31ifeq ($(CONFIG_MCOUNT),y)
32ORIG_CFLAGS := $(KBUILD_CFLAGS)
33KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
34endif
35
36LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
37		   -T $(obj)/../../kernel/vmlinux.lds
38
39#
40# Pull in the necessary libgcc bits from the in-kernel implementation.
41#
42lib1funcs-y	:= ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S
43lib1funcs-obj   := \
44	$(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
45
46lib1funcs-dir		:= $(srctree)/arch/$(SRCARCH)/lib
47
48KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
49
50$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
51	$(call cmd,shipped)
52
53$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
54	$(call if_changed,ld)
55
56$(obj)/vmlinux.bin: vmlinux FORCE
57	$(call if_changed,objcopy)
58
59vmlinux.bin.all-y := $(obj)/vmlinux.bin
60
61$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
62	$(call if_changed,gzip)
63$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
64	$(call if_changed,bzip2)
65$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
66	$(call if_changed,lzma)
67$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
68	$(call if_changed,xzkern)
69$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
70	$(call if_changed,lzo)
71
72OBJCOPYFLAGS += -R .empty_zero_page
73
74LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T
75
76$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
77	$(call if_changed,ld)
78