xref: /linux/arch/arm/boot/compressed/Makefile (revision bbb20089a3275a19e475dbc21320c3742e3ca423) 
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 ($(CONFIG_ARCH_P720T),y)
27# Borrow this code from SA1100
28OBJS		+= head-sa1100.o
29endif
30
31ifeq ($(CONFIG_ARCH_SA1100),y)
32OBJS		+= head-sa1100.o
33endif
34
35ifeq ($(CONFIG_CPU_XSCALE),y)
36OBJS		+= head-xscale.o
37endif
38
39ifeq ($(CONFIG_PXA_SHARPSL),y)
40OBJS		+= head-sharpsl.o
41endif
42
43ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
44ifeq ($(CONFIG_CPU_CP15),y)
45OBJS		+= big-endian.o
46else
47# The endian should be set by h/w design.
48endif
49endif
50
51#
52# We now have a PIC decompressor implementation.  Decompressors running
53# from RAM should not define ZTEXTADDR.  Decompressors running directly
54# from ROM or Flash must define ZTEXTADDR (preferably via the config)
55# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
56ifeq ($(CONFIG_ZBOOT_ROM),y)
57ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
58ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
59else
60ZTEXTADDR	:= 0
61ZBSSADDR	:= ALIGN(4)
62endif
63
64SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
65
66targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
67		 head.o misc.o $(OBJS)
68
69ifeq ($(CONFIG_FUNCTION_TRACER),y)
70ORIG_CFLAGS := $(KBUILD_CFLAGS)
71KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
72endif
73
74EXTRA_CFLAGS  := -fpic -fno-builtin
75EXTRA_AFLAGS  := -Wa,-march=all
76
77# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
78# linker symbols.  We only define initrd_phys and params_phys if the
79# machine class defined the corresponding makefile variable.
80LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
81ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
82LDFLAGS_vmlinux += --be8
83endif
84ifneq ($(INITRD_PHYS),)
85LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
86endif
87ifneq ($(PARAMS_PHYS),)
88LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
89endif
90LDFLAGS_vmlinux += -p --no-undefined -X \
91	$(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
92
93# Don't allow any static data in misc.o, which
94# would otherwise mess up our GOT table
95CFLAGS_misc.o := -Dstatic=
96
97$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
98	 	$(addprefix $(obj)/, $(OBJS)) FORCE
99	$(call if_changed,ld)
100	@:
101
102$(obj)/piggy.gz: $(obj)/../Image FORCE
103	$(call if_changed,gzip)
104
105$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
106
107CFLAGS_font.o := -Dstatic=
108
109$(obj)/font.c: $(FONTC)
110	$(call cmd,shipped)
111
112$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
113	@sed "$(SEDFLAGS)" < $< > $@
114