Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # linux/arch/arm/boot/compressed/Makefile | |
3 | # | |
4 | # create a compressed vmlinuz image from the original vmlinux | |
5 | # | |
6 | ||
f45b1149 SH |
7 | OBJS = |
8 | ||
090ab3ff | 9 | # Ensure that MMCIF loader code appears early in the image |
f45b1149 SH |
10 | # to minimise that number of bocks that have to be read in |
11 | # order to load it. | |
12 | ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y) | |
f45b1149 SH |
13 | OBJS += mmcif-sh7372.o |
14 | endif | |
090ab3ff SH |
15 | |
16 | # Ensure that SDHI loader code appears early in the image | |
17 | # to minimise that number of bocks that have to be read in | |
18 | # order to load it. | |
19 | ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y) | |
20 | OBJS += sdhi-shmobile.o | |
21 | OBJS += sdhi-sh7372.o | |
f45b1149 SH |
22 | endif |
23 | ||
e69edc79 | 24 | AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) |
1da177e4 | 25 | HEAD = head.o |
f45b1149 | 26 | OBJS += misc.o decompress.o |
4486b863 | 27 | FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c |
1da177e4 LT |
28 | |
29 | # | |
30 | # Architecture dependencies | |
31 | # | |
32 | ifeq ($(CONFIG_ARCH_ACORN),y) | |
4486b863 | 33 | OBJS += ll_char_wr.o font.o |
1da177e4 LT |
34 | endif |
35 | ||
36 | ifeq ($(CONFIG_ARCH_SHARK),y) | |
37 | OBJS += head-shark.o ofw-shark.o | |
38 | endif | |
39 | ||
1da177e4 LT |
40 | ifeq ($(CONFIG_ARCH_P720T),y) |
41 | # Borrow this code from SA1100 | |
42 | OBJS += head-sa1100.o | |
43 | endif | |
44 | ||
45 | ifeq ($(CONFIG_ARCH_SA1100),y) | |
46 | OBJS += head-sa1100.o | |
47 | endif | |
48 | ||
21f47fbc AC |
49 | ifeq ($(CONFIG_ARCH_VT8500),y) |
50 | OBJS += head-vt8500.o | |
51 | endif | |
52 | ||
1da177e4 LT |
53 | ifeq ($(CONFIG_CPU_XSCALE),y) |
54 | OBJS += head-xscale.o | |
55 | endif | |
56 | ||
9c3fca2e | 57 | ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y) |
1da177e4 LT |
58 | OBJS += head-sharpsl.o |
59 | endif | |
60 | ||
26584853 | 61 | ifeq ($(CONFIG_CPU_ENDIAN_BE32),y) |
f12d0d7c | 62 | ifeq ($(CONFIG_CPU_CP15),y) |
1da177e4 | 63 | OBJS += big-endian.o |
f12d0d7c HC |
64 | else |
65 | # The endian should be set by h/w design. | |
66 | endif | |
1da177e4 LT |
67 | endif |
68 | ||
9a4af112 KM |
69 | ifeq ($(CONFIG_ARCH_SHMOBILE),y) |
70 | OBJS += head-shmobile.o | |
71 | endif | |
72 | ||
1da177e4 LT |
73 | # |
74 | # We now have a PIC decompressor implementation. Decompressors running | |
75 | # from RAM should not define ZTEXTADDR. Decompressors running directly | |
76 | # from ROM or Flash must define ZTEXTADDR (preferably via the config) | |
77 | # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK | |
78 | ifeq ($(CONFIG_ZBOOT_ROM),y) | |
79 | ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) | |
80 | ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) | |
81 | else | |
82 | ZTEXTADDR := 0 | |
3bd2cbb9 | 83 | ZBSSADDR := ALIGN(8) |
1da177e4 LT |
84 | endif |
85 | ||
86 | SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ | |
87 | ||
e7db7b42 AT |
88 | suffix_$(CONFIG_KERNEL_GZIP) = gzip |
89 | suffix_$(CONFIG_KERNEL_LZO) = lzo | |
6e8699f7 | 90 | suffix_$(CONFIG_KERNEL_LZMA) = lzma |
e7db7b42 AT |
91 | |
92 | targets := vmlinux vmlinux.lds \ | |
93 | piggy.$(suffix_y) piggy.$(suffix_y).o \ | |
94 | font.o font.c head.o misc.o $(OBJS) | |
014c257c | 95 | |
f1b957d3 MD |
96 | # Make sure files are removed during clean |
97 | extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S | |
98 | ||
606576ce | 99 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
014c257c AS |
100 | ORIG_CFLAGS := $(KBUILD_CFLAGS) |
101 | KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) | |
102 | endif | |
103 | ||
21f0b311 | 104 | ccflags-y := -fpic -fno-builtin |
105 | asflags-y := -Wa,-march=all | |
1da177e4 | 106 | |
5ffb04f6 NP |
107 | # Supply kernel BSS size to the decompressor via a linker symbol. |
108 | KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}') | |
109 | LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) | |
9e84ed63 RK |
110 | # Supply ZRELADDR to the decompressor via a linker symbol. |
111 | ifneq ($(CONFIG_AUTO_ZRELADDR),y) | |
d239b1dc | 112 | LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) |
9e84ed63 | 113 | endif |
26584853 CM |
114 | ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) |
115 | LDFLAGS_vmlinux += --be8 | |
116 | endif | |
e7db7b42 AT |
117 | # ? |
118 | LDFLAGS_vmlinux += -p | |
119 | # Report unresolved symbol references | |
120 | LDFLAGS_vmlinux += --no-undefined | |
121 | # Delete all temporary local symbols | |
122 | LDFLAGS_vmlinux += -X | |
123 | # Next argument is a linker script | |
124 | LDFLAGS_vmlinux += -T | |
125 | ||
126 | # For __aeabi_uidivmod | |
127 | lib1funcs = $(obj)/lib1funcs.o | |
128 | ||
129 | $(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE | |
130 | $(call cmd,shipped) | |
1da177e4 | 131 | |
8d7e4cc2 NP |
132 | # We need to prevent any GOTOFF relocs being used with references |
133 | # to symbols in the .bss section since we cannot relocate them | |
134 | # independently from the rest at run time. This can be achieved by | |
135 | # ensuring that no private .bss symbols exist, as global symbols | |
136 | # always have a GOT entry which is what we need. | |
137 | # The .data section is already discarded by the linker script so no need | |
138 | # to bother about it here. | |
139 | check_for_bad_syms = \ | |
140 | bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ | |
141 | [ -z "$$bad_syms" ] || \ | |
142 | ( echo "following symbols must have non local/private scope:" >&2; \ | |
143 | echo "$$bad_syms" >&2; rm -f $@; false ) | |
144 | ||
e7db7b42 AT |
145 | $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ |
146 | $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE | |
1da177e4 | 147 | $(call if_changed,ld) |
8d7e4cc2 | 148 | @$(check_for_bad_syms) |
1da177e4 | 149 | |
e7db7b42 AT |
150 | $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE |
151 | $(call if_changed,$(suffix_y)) | |
1da177e4 | 152 | |
e7db7b42 | 153 | $(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE |
1da177e4 | 154 | |
4486b863 RK |
155 | CFLAGS_font.o := -Dstatic= |
156 | ||
157 | $(obj)/font.c: $(FONTC) | |
158 | $(call cmd,shipped) | |
1da177e4 | 159 | |
d93c333d | 160 | $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG) |
1da177e4 | 161 | @sed "$(SEDFLAGS)" < $< > $@ |