blob: 23aad07223035a3fcfd9346158a808d2fe423b8e [file] [log] [blame]
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
9# Ensure that mmcif loader code appears early in the image
10# to minimise that number of bocks that have to be read in
11# order to load it.
12ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
13ifeq ($(CONFIG_ARCH_SH7372),y)
14OBJS += mmcif-sh7372.o
15endif
16endif
17
Eric Miaoe69edc792010-07-05 15:56:50 +020018AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
Linus Torvalds1da177e2005-04-16 15:20:36 -070019HEAD = head.o
Simon Hormanf45b1142011-01-11 04:01:08 +010020OBJS += misc.o decompress.o
Russell King4486b862007-06-03 18:54:42 +010021FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
23#
24# Architecture dependencies
25#
26ifeq ($(CONFIG_ARCH_ACORN),y)
Russell King4486b862007-06-03 18:54:42 +010027OBJS += ll_char_wr.o font.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070028endif
29
30ifeq ($(CONFIG_ARCH_SHARK),y)
31OBJS += head-shark.o ofw-shark.o
32endif
33
Linus Torvalds1da177e2005-04-16 15:20:36 -070034ifeq ($(CONFIG_ARCH_P720T),y)
35# Borrow this code from SA1100
36OBJS += head-sa1100.o
37endif
38
39ifeq ($(CONFIG_ARCH_SA1100),y)
40OBJS += head-sa1100.o
41endif
42
Alexey Charkov21f47fb2010-12-23 13:11:21 +010043ifeq ($(CONFIG_ARCH_VT8500),y)
44OBJS += head-vt8500.o
45endif
46
Linus Torvalds1da177e2005-04-16 15:20:36 -070047ifeq ($(CONFIG_CPU_XSCALE),y)
48OBJS += head-xscale.o
49endif
50
Eric Miao9c3fca22010-06-23 09:27:32 +080051ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052OBJS += head-sharpsl.o
53endif
54
Catalin Marinas26584852009-05-30 14:00:18 +010055ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
Hyok S. Choif12d0d72006-09-26 17:36:37 +090056ifeq ($(CONFIG_CPU_CP15),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070057OBJS += big-endian.o
Hyok S. Choif12d0d72006-09-26 17:36:37 +090058else
59# The endian should be set by h/w design.
60endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070061endif
62
Kuninori Morimoto9a4af112010-12-01 07:45:00 +010063ifeq ($(CONFIG_ARCH_SHMOBILE),y)
64OBJS += head-shmobile.o
65endif
66
Linus Torvalds1da177e2005-04-16 15:20:36 -070067#
68# We now have a PIC decompressor implementation. Decompressors running
69# from RAM should not define ZTEXTADDR. Decompressors running directly
70# from ROM or Flash must define ZTEXTADDR (preferably via the config)
71# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
72ifeq ($(CONFIG_ZBOOT_ROM),y)
73ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
74ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
75else
76ZTEXTADDR := 0
Nicolas Pitre3bd2cbb2011-04-21 21:45:08 -040077ZBSSADDR := ALIGN(8)
Linus Torvalds1da177e2005-04-16 15:20:36 -070078endif
79
80SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
81
Albin Tonnerree7db7b42010-01-08 14:42:43 -080082suffix_$(CONFIG_KERNEL_GZIP) = gzip
83suffix_$(CONFIG_KERNEL_LZO) = lzo
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010084suffix_$(CONFIG_KERNEL_LZMA) = lzma
Albin Tonnerree7db7b42010-01-08 14:42:43 -080085
86targets := vmlinux vmlinux.lds \
87 piggy.$(suffix_y) piggy.$(suffix_y).o \
88 font.o font.c head.o misc.o $(OBJS)
Abhishek Sagar014c2572008-05-31 14:23:50 +053089
Magnus Dammf1b957d2010-07-28 05:46:21 +010090# Make sure files are removed during clean
91extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S
92
Steven Rostedt606576c2008-10-06 19:06:12 -040093ifeq ($(CONFIG_FUNCTION_TRACER),y)
Abhishek Sagar014c2572008-05-31 14:23:50 +053094ORIG_CFLAGS := $(KBUILD_CFLAGS)
95KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
96endif
97
matt mooney21f0b312011-01-14 06:12:26 -080098ccflags-y := -fpic -fno-builtin
99asflags-y := -Wa,-march=all
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100
Russell King9e84ed62010-09-09 22:39:41 +0100101# Supply ZRELADDR to the decompressor via a linker symbol.
102ifneq ($(CONFIG_AUTO_ZRELADDR),y)
Nicolas Pitred239b1d2011-02-21 04:57:38 +0100103LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
Russell King9e84ed62010-09-09 22:39:41 +0100104endif
Catalin Marinas26584852009-05-30 14:00:18 +0100105ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
106LDFLAGS_vmlinux += --be8
107endif
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800108# ?
109LDFLAGS_vmlinux += -p
110# Report unresolved symbol references
111LDFLAGS_vmlinux += --no-undefined
112# Delete all temporary local symbols
113LDFLAGS_vmlinux += -X
114# Next argument is a linker script
115LDFLAGS_vmlinux += -T
116
117# For __aeabi_uidivmod
118lib1funcs = $(obj)/lib1funcs.o
119
120$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE
121 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400123# We need to prevent any GOTOFF relocs being used with references
124# to symbols in the .bss section since we cannot relocate them
125# independently from the rest at run time. This can be achieved by
126# ensuring that no private .bss symbols exist, as global symbols
127# always have a GOT entry which is what we need.
128# The .data section is already discarded by the linker script so no need
129# to bother about it here.
130check_for_bad_syms = \
131bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
132[ -z "$$bad_syms" ] || \
133 ( echo "following symbols must have non local/private scope:" >&2; \
134 echo "$$bad_syms" >&2; rm -f $@; false )
135
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800136$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
137 $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 $(call if_changed,ld)
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400139 @$(check_for_bad_syms)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800141$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
142 $(call if_changed,$(suffix_y))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800144$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145
Russell King4486b862007-06-03 18:54:42 +0100146CFLAGS_font.o := -Dstatic=
147
148$(obj)/font.c: $(FONTC)
149 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
Russell Kingd93c3332010-09-19 16:16:58 +0100151$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 @sed "$(SEDFLAGS)" < $< > $@