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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# linux/arch/arm/boot/compressed/Makefile
3#
4# create a compressed vmlinuz image from the original vmlinux
5#
6
Simon Hormanf45b1142011-01-11 04:01:08 +01007OBJS =
8
Simon Horman090ab3f2011-04-26 06:29:53 +01009# Ensure that MMCIF loader code appears early in the image
Simon Hormanf45b1142011-01-11 04:01:08 +010010# to minimise that number of bocks that have to be read in
11# order to load it.
12ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
Simon Hormanf45b1142011-01-11 04:01:08 +010013OBJS += mmcif-sh7372.o
14endif
Simon Horman090ab3f2011-04-26 06:29:53 +010015
16# Ensure that SDHI loader code appears early in the image
17# to minimise that number of bocks that have to be read in
18# order to load it.
19ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y)
20OBJS += sdhi-shmobile.o
21OBJS += sdhi-sh7372.o
Simon Hormanf45b1142011-01-11 04:01:08 +010022endif
23
Eric Miaoe69edc792010-07-05 15:56:50 +020024AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
Linus Torvalds1da177e2005-04-16 15:20:36 -070025HEAD = head.o
Simon Hormanf45b1142011-01-11 04:01:08 +010026OBJS += misc.o decompress.o
Russell King4486b862007-06-03 18:54:42 +010027FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
29#
30# Architecture dependencies
31#
32ifeq ($(CONFIG_ARCH_ACORN),y)
Russell King4486b862007-06-03 18:54:42 +010033OBJS += ll_char_wr.o font.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070034endif
35
36ifeq ($(CONFIG_ARCH_SHARK),y)
37OBJS += head-shark.o ofw-shark.o
38endif
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040ifeq ($(CONFIG_ARCH_P720T),y)
41# Borrow this code from SA1100
42OBJS += head-sa1100.o
43endif
44
45ifeq ($(CONFIG_ARCH_SA1100),y)
46OBJS += head-sa1100.o
47endif
48
Alexey Charkov21f47fb2010-12-23 13:11:21 +010049ifeq ($(CONFIG_ARCH_VT8500),y)
50OBJS += head-vt8500.o
51endif
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053ifeq ($(CONFIG_CPU_XSCALE),y)
54OBJS += head-xscale.o
55endif
56
Eric Miao9c3fca22010-06-23 09:27:32 +080057ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070058OBJS += head-sharpsl.o
59endif
60
Catalin Marinas26584852009-05-30 14:00:18 +010061ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
Hyok S. Choif12d0d72006-09-26 17:36:37 +090062ifeq ($(CONFIG_CPU_CP15),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070063OBJS += big-endian.o
Hyok S. Choif12d0d72006-09-26 17:36:37 +090064else
65# The endian should be set by h/w design.
66endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070067endif
68
Kuninori Morimoto9a4af112010-12-01 07:45:00 +010069ifeq ($(CONFIG_ARCH_SHMOBILE),y)
70OBJS += head-shmobile.o
71endif
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073#
74# We now have a PIC decompressor implementation. Decompressors running
75# from RAM should not define ZTEXTADDR. Decompressors running directly
76# from ROM or Flash must define ZTEXTADDR (preferably via the config)
77# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
78ifeq ($(CONFIG_ZBOOT_ROM),y)
79ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
80ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
81else
82ZTEXTADDR := 0
Nicolas Pitre3bd2cbb2011-04-21 21:45:08 -040083ZBSSADDR := ALIGN(8)
Linus Torvalds1da177e2005-04-16 15:20:36 -070084endif
85
86SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
87
Albin Tonnerree7db7b42010-01-08 14:42:43 -080088suffix_$(CONFIG_KERNEL_GZIP) = gzip
89suffix_$(CONFIG_KERNEL_LZO) = lzo
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010090suffix_$(CONFIG_KERNEL_LZMA) = lzma
Albin Tonnerree7db7b42010-01-08 14:42:43 -080091
92targets := vmlinux vmlinux.lds \
93 piggy.$(suffix_y) piggy.$(suffix_y).o \
94 font.o font.c head.o misc.o $(OBJS)
Abhishek Sagar014c2572008-05-31 14:23:50 +053095
Magnus Dammf1b957d2010-07-28 05:46:21 +010096# Make sure files are removed during clean
97extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
98
Steven Rostedt606576c2008-10-06 19:06:12 -040099ifeq ($(CONFIG_FUNCTION_TRACER),y)
Abhishek Sagar014c2572008-05-31 14:23:50 +0530100ORIG_CFLAGS := $(KBUILD_CFLAGS)
101KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
102endif
103
matt mooney21f0b312011-01-14 06:12:26 -0800104ccflags-y := -fpic -fno-builtin
105asflags-y := -Wa,-march=all
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
Russell King9e84ed62010-09-09 22:39:41 +0100107# Supply ZRELADDR to the decompressor via a linker symbol.
108ifneq ($(CONFIG_AUTO_ZRELADDR),y)
Nicolas Pitred239b1d2011-02-21 04:57:38 +0100109LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
Russell King9e84ed62010-09-09 22:39:41 +0100110endif
Catalin Marinas26584852009-05-30 14:00:18 +0100111ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
112LDFLAGS_vmlinux += --be8
113endif
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800114# ?
115LDFLAGS_vmlinux += -p
116# Report unresolved symbol references
117LDFLAGS_vmlinux += --no-undefined
118# Delete all temporary local symbols
119LDFLAGS_vmlinux += -X
120# Next argument is a linker script
121LDFLAGS_vmlinux += -T
122
123# For __aeabi_uidivmod
124lib1funcs = $(obj)/lib1funcs.o
125
126$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
127 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400129# We need to prevent any GOTOFF relocs being used with references
130# to symbols in the .bss section since we cannot relocate them
131# independently from the rest at run time. This can be achieved by
132# ensuring that no private .bss symbols exist, as global symbols
133# always have a GOT entry which is what we need.
134# The .data section is already discarded by the linker script so no need
135# to bother about it here.
136check_for_bad_syms = \
137bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
138[ -z "$$bad_syms" ] || \
139 ( echo "following symbols must have non local/private scope:" >&2; \
140 echo "$$bad_syms" >&2; rm -f $@; false )
141
Sascha Hauer60aac932011-08-17 14:22:11 +0100142check_for_multiple_zreladdr = \
Rabin Vincent4bdad982011-10-04 14:33:34 +0100143if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
Sascha Hauer60aac932011-08-17 14:22:11 +0100144 echo 'multiple zreladdrs: $(ZRELADDR)'; \
145 echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
146 false; \
147fi
148
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800149$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
150 $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
Sascha Hauer60aac932011-08-17 14:22:11 +0100151 @$(check_for_multiple_zreladdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 $(call if_changed,ld)
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400153 @$(check_for_bad_syms)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800155$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
156 $(call if_changed,$(suffix_y))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800158$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
Russell King4486b862007-06-03 18:54:42 +0100160CFLAGS_font.o := -Dstatic=
161
162$(obj)/font.c: $(FONTC)
163 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
Russell Kingd93c3332010-09-19 16:16:58 +0100165$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 @sed "$(SEDFLAGS)" < $< > $@