aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/boot/compressed/Makefile
blob: 23aad07223035a3fcfd9346158a808d2fe423b8e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
#
# linux/arch/arm/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#

OBJS		=

# Ensure that mmcif loader code appears early in the image
# to minimise that number of bocks that have to be read in
# order to load it.
ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
ifeq ($(CONFIG_ARCH_SH7372),y)
OBJS		+= mmcif-sh7372.o
endif
endif

AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD	= head.o
OBJS	+= misc.o decompress.o
FONTC	= $(srctree)/drivers/video/console/font_acorn_8x8.c

#
# Architecture dependencies
#
ifeq ($(CONFIG_ARCH_ACORN),y)
OBJS		+= ll_char_wr.o font.o
endif

ifeq ($(CONFIG_ARCH_SHARK),y)
OBJS		+= head-shark.o ofw-shark.o
endif

ifeq ($(CONFIG_ARCH_P720T),y)
# Borrow this code from SA1100
OBJS		+= head-sa1100.o
endif

ifeq ($(CONFIG_ARCH_SA1100),y)
OBJS		+= head-sa1100.o
endif

ifeq ($(CONFIG_ARCH_VT8500),y)
OBJS		+= head-vt8500.o
endif

ifeq ($(CONFIG_CPU_XSCALE),y)
OBJS		+= head-xscale.o
endif

ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
OBJS		+= head-sharpsl.o
endif

ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
ifeq ($(CONFIG_CPU_CP15),y)
OBJS		+= big-endian.o
else
# The endian should be set by h/w design.
endif
endif

ifeq ($(CONFIG_ARCH_SHMOBILE),y)
OBJS		+= head-shmobile.o
endif

#
# We now have a PIC decompressor implementation.  Decompressors running
# from RAM should not define ZTEXTADDR.  Decompressors running directly
# from ROM or Flash must define ZTEXTADDR (preferably via the config)
# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
ifeq ($(CONFIG_ZBOOT_ROM),y)
ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
else
ZTEXTADDR	:= 0
ZBSSADDR	:= ALIGN(8)
endif

SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/

suffix_$(CONFIG_KERNEL_GZIP) = gzip
suffix_$(CONFIG_KERNEL_LZO)  = lzo
suffix_$(CONFIG_KERNEL_LZMA) = lzma

targets       := vmlinux vmlinux.lds \
		 piggy.$(suffix_y) piggy.$(suffix_y).o \
		 font.o font.c head.o misc.o $(OBJS)

# Make sure files are removed during clean
extra-y       += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S

ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif

ccflags-y := -fpic -fno-builtin
asflags-y := -Wa,-march=all

# Supply ZRELADDR to the decompressor via a linker symbol.
ifneq ($(CONFIG_AUTO_ZRELADDR),y)
LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
endif
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
endif
# ?
LDFLAGS_vmlinux += -p
# Report unresolved symbol references
LDFLAGS_vmlinux += --no-undefined
# Delete all temporary local symbols
LDFLAGS_vmlinux += -X
# Next argument is a linker script
LDFLAGS_vmlinux += -T

# For __aeabi_uidivmod
lib1funcs = $(obj)/lib1funcs.o

$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
	$(call cmd,shipped)

# We need to prevent any GOTOFF relocs being used with references
# to symbols in the .bss section since we cannot relocate them
# independently from the rest at run time.  This can be achieved by
# ensuring that no private .bss symbols exist, as global symbols
# always have a GOT entry which is what we need.
# The .data section is already discarded by the linker script so no need
# to bother about it here.
check_for_bad_syms = \
bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
[ -z "$$bad_syms" ] || \
  ( echo "following symbols must have non local/private scope:" >&2; \
    echo "$$bad_syms" >&2; rm -f $@; false )

$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
	 	$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
	$(call if_changed,ld)
	@$(check_for_bad_syms)

$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
	$(call if_changed,$(suffix_y))

$(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE

CFLAGS_font.o := -Dstatic=

$(obj)/font.c: $(FONTC)
	$(call cmd,shipped)

$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
	@sed "$(SEDFLAGS)" < $< > $@