xref: /openbmc/linux/arch/arm/boot/compressed/Makefile (revision 48da78bc) 
1#
2# linux/arch/arm/boot/compressed/Makefile
3#
4# create a compressed vmlinuz image from the original vmlinux
5#
6
7HEAD	= head.o
8OBJS	= misc.o
9FONTC	= $(srctree)/drivers/video/console/font_acorn_8x8.c
10
11#
12# Architecture dependencies
13#
14ifeq ($(CONFIG_ARCH_ACORN),y)
15OBJS		+= ll_char_wr.o font.o
16endif
17
18ifeq ($(CONFIG_ARCH_SHARK),y)
19OBJS		+= head-shark.o ofw-shark.o
20endif
21
22ifeq ($(CONFIG_ARCH_L7200),y)
23OBJS		+= head-l7200.o
24endif
25
26ifeq ($(CONFIG_ARCH_CLPS7500),y)
27HEAD		= head-clps7500.o
28endif
29
30ifeq ($(CONFIG_ARCH_P720T),y)
31# Borrow this code from SA1100
32OBJS		+= head-sa1100.o
33endif
34
35ifeq ($(CONFIG_ARCH_SA1100),y)
36OBJS		+= head-sa1100.o
37endif
38
39ifeq ($(CONFIG_CPU_XSCALE),y)
40OBJS		+= head-xscale.o
41endif
42
43ifeq ($(CONFIG_PXA_SHARPSL),y)
44OBJS		+= head-sharpsl.o
45endif
46
47ifeq ($(CONFIG_ARCH_AT91RM9200),y)
48OBJS		+= head-at91rm9200.o
49endif
50
51ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
52ifeq ($(CONFIG_CPU_CP15),y)
53OBJS		+= big-endian.o
54else
55# The endian should be set by h/w design.
56endif
57endif
58
59#
60# We now have a PIC decompressor implementation.  Decompressors running
61# from RAM should not define ZTEXTADDR.  Decompressors running directly
62# from ROM or Flash must define ZTEXTADDR (preferably via the config)
63# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
64ifeq ($(CONFIG_ZBOOT_ROM),y)
65ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
66ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
67else
68ZTEXTADDR	:= 0
69ZBSSADDR	:= ALIGN(4)
70endif
71
72SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
73
74targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
75		 head.o misc.o $(OBJS)
76EXTRA_CFLAGS  := -fpic -fno-builtin
77EXTRA_AFLAGS  :=
78
79# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
80# linker symbols.  We only define initrd_phys and params_phys if the
81# machine class defined the corresponding makefile variable.
82LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
83ifneq ($(INITRD_PHYS),)
84LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
85endif
86ifneq ($(PARAMS_PHYS),)
87LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
88endif
89LDFLAGS_vmlinux += -p --no-undefined -X \
90	$(shell $(CC) $(CFLAGS) --print-libgcc-file-name) -T
91
92# Don't allow any static data in misc.o, which
93# would otherwise mess up our GOT table
94CFLAGS_misc.o := -Dstatic=
95
96$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
97	 	$(addprefix $(obj)/, $(OBJS)) FORCE
98	$(call if_changed,ld)
99	@:
100
101$(obj)/piggy.gz: $(obj)/../Image FORCE
102	$(call if_changed,gzip)
103
104$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
105
106CFLAGS_font.o := -Dstatic=
107
108$(obj)/font.c: $(FONTC)
109	$(call cmd,shipped)
110
111$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
112	@sed "$(SEDFLAGS)" < $< > $@
113
114$(obj)/misc.o: $(obj)/misc.c include/asm/arch/uncompress.h lib/inflate.c
115
116