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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=$(TEXT_OFFSET)
Linus Torvalds1da177e2005-04-16 15:20:36 -070025HEAD = head.o
Simon Hormanf45b1142011-01-11 04:01:08 +010026OBJS += misc.o decompress.o
Shawn Guo3b4af9b2013-03-14 08:48:06 +010027ifeq ($(CONFIG_DEBUG_UNCOMPRESS),y)
28OBJS += debug.o
29endif
Geert Uytterhoevenee89bd62013-06-09 11:46:43 +020030FONTC = $(srctree)/lib/fonts/font_acorn_8x8.c
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Nicolas Pitredf4879f2011-09-13 21:42:55 -040032# string library code (-Os is enforced to keep it much smaller)
33OBJS += string.o
34CFLAGS_string.o := -Os
35
Dave Martin424e5992012-02-10 18:07:07 -080036ifeq ($(CONFIG_ARM_VIRT_EXT),y)
37OBJS += hyp-stub.o
38endif
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#
41# Architecture dependencies
42#
43ifeq ($(CONFIG_ARCH_ACORN),y)
Russell King4486b862007-06-03 18:54:42 +010044OBJS += ll_char_wr.o font.o
Linus Torvalds1da177e2005-04-16 15:20:36 -070045endif
46
Linus Torvalds1da177e2005-04-16 15:20:36 -070047ifeq ($(CONFIG_ARCH_SA1100),y)
48OBJS += head-sa1100.o
49endif
50
51ifeq ($(CONFIG_CPU_XSCALE),y)
52OBJS += head-xscale.o
53endif
54
Eric Miao9c3fca22010-06-23 09:27:32 +080055ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070056OBJS += head-sharpsl.o
57endif
58
Catalin Marinas26584852009-05-30 14:00:18 +010059ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
Hyok S. Choif12d0d72006-09-26 17:36:37 +090060ifeq ($(CONFIG_CPU_CP15),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061OBJS += big-endian.o
Hyok S. Choif12d0d72006-09-26 17:36:37 +090062else
63# The endian should be set by h/w design.
64endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070065endif
66
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +010067ifeq ($(CONFIG_ARCH_SHMOBILE_LEGACY),y)
Kuninori Morimoto9a4af112010-12-01 07:45:00 +010068OBJS += head-shmobile.o
69endif
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071#
72# We now have a PIC decompressor implementation. Decompressors running
73# from RAM should not define ZTEXTADDR. Decompressors running directly
74# from ROM or Flash must define ZTEXTADDR (preferably via the config)
75# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
76ifeq ($(CONFIG_ZBOOT_ROM),y)
77ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
78ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
79else
80ZTEXTADDR := 0
Nicolas Pitre3bd2cbb2011-04-21 21:45:08 -040081ZBSSADDR := ALIGN(8)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082endif
83
84SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
85
Albin Tonnerree7db7b42010-01-08 14:42:43 -080086suffix_$(CONFIG_KERNEL_GZIP) = gzip
87suffix_$(CONFIG_KERNEL_LZO) = lzo
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010088suffix_$(CONFIG_KERNEL_LZMA) = lzma
Imre Kaloza7f464f2012-01-26 13:08:57 +010089suffix_$(CONFIG_KERNEL_XZ) = xzkern
Kyungsik Leef9b493a2013-07-08 16:01:48 -070090suffix_$(CONFIG_KERNEL_LZ4) = lz4
Albin Tonnerree7db7b42010-01-08 14:42:43 -080091
Nicolas Pitreb90b9a32011-09-13 22:37:07 -040092# Borrowed libfdt files for the ATAG compatibility mode
93
94libfdt := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
95libfdt_hdrs := fdt.h libfdt.h libfdt_internal.h
96
97libfdt_objs := $(addsuffix .o, $(basename $(libfdt)))
98
99$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
100 $(call cmd,shipped)
101
102$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
103 $(addprefix $(obj)/,$(libfdt_hdrs))
104
105ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
106OBJS += $(libfdt_objs) atags_to_fdt.o
107endif
108
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800109targets := vmlinux vmlinux.lds \
110 piggy.$(suffix_y) piggy.$(suffix_y).o \
Kim Phillips017f1612013-11-06 05:15:24 +0100111 lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \
112 bswapsdi2.S font.o font.c head.o misc.o $(OBJS)
Abhishek Sagar014c2572008-05-31 14:23:50 +0530113
Magnus Dammf1b957d2010-07-28 05:46:21 +0100114# Make sure files are removed during clean
Kyungsik Leef9b493a2013-07-08 16:01:48 -0700115extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \
Kim Phillips017f1612013-11-06 05:15:24 +0100116 lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \
Magnus Damm69f91ff2013-06-12 10:56:43 +0100117 hyp-stub.S
Magnus Dammf1b957d2010-07-28 05:46:21 +0100118
Steven Rostedt606576c2008-10-06 19:06:12 -0400119ifeq ($(CONFIG_FUNCTION_TRACER),y)
Abhishek Sagar014c2572008-05-31 14:23:50 +0530120ORIG_CFLAGS := $(KBUILD_CFLAGS)
121KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
122endif
123
Jonathan Austinb8083f82013-03-04 15:17:36 +0100124ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj)
Arnd Bergmannda94a822013-05-31 22:50:47 +0100125asflags-y := -DZIMAGE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
Nicolas Pitre5ffb04f2011-06-12 01:07:33 -0400127# Supply kernel BSS size to the decompressor via a linker symbol.
Janusz Krzysztofik1ec332a2011-12-01 22:45:47 +0100128KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
129 awk 'END{print $$3}')
Nicolas Pitre5ffb04f2011-06-12 01:07:33 -0400130LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
Russell King9e84ed62010-09-09 22:39:41 +0100131# Supply ZRELADDR to the decompressor via a linker symbol.
132ifneq ($(CONFIG_AUTO_ZRELADDR),y)
Nicolas Pitred239b1d2011-02-21 04:57:38 +0100133LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
Russell King9e84ed62010-09-09 22:39:41 +0100134endif
Catalin Marinas26584852009-05-30 14:00:18 +0100135ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
136LDFLAGS_vmlinux += --be8
137endif
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800138# ?
139LDFLAGS_vmlinux += -p
140# Report unresolved symbol references
141LDFLAGS_vmlinux += --no-undefined
142# Delete all temporary local symbols
143LDFLAGS_vmlinux += -X
144# Next argument is a linker script
145LDFLAGS_vmlinux += -T
146
147# For __aeabi_uidivmod
148lib1funcs = $(obj)/lib1funcs.o
149
Nicolas Pitre63d15142011-09-14 00:16:21 -0400150$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800151 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
Imre Kaloza7f464f2012-01-26 13:08:57 +0100153# For __aeabi_llsl
154ashldi3 = $(obj)/ashldi3.o
155
156$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S
157 $(call cmd,shipped)
158
Kim Phillips017f1612013-11-06 05:15:24 +0100159# For __bswapsi2, __bswapdi2
160bswapsdi2 = $(obj)/bswapsdi2.o
161
162$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S
163 $(call cmd,shipped)
164
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400165# We need to prevent any GOTOFF relocs being used with references
166# to symbols in the .bss section since we cannot relocate them
167# independently from the rest at run time. This can be achieved by
168# ensuring that no private .bss symbols exist, as global symbols
169# always have a GOT entry which is what we need.
170# The .data section is already discarded by the linker script so no need
171# to bother about it here.
172check_for_bad_syms = \
173bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
174[ -z "$$bad_syms" ] || \
175 ( echo "following symbols must have non local/private scope:" >&2; \
176 echo "$$bad_syms" >&2; rm -f $@; false )
177
Sascha Hauer60aac932011-08-17 14:22:11 +0100178check_for_multiple_zreladdr = \
Rabin Vincent4bdad982011-10-04 14:33:34 +0100179if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
Sascha Hauer60aac932011-08-17 14:22:11 +0100180 echo 'multiple zreladdrs: $(ZRELADDR)'; \
181 echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
182 false; \
183fi
184
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800185$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
Kim Phillips017f1612013-11-06 05:15:24 +0100186 $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \
187 $(bswapsdi2) FORCE
Sascha Hauer60aac932011-08-17 14:22:11 +0100188 @$(check_for_multiple_zreladdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 $(call if_changed,ld)
Nicolas Pitre8d7e4cc2011-04-27 14:54:39 -0400190 @$(check_for_bad_syms)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800192$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
193 $(call if_changed,$(suffix_y))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
Albin Tonnerree7db7b42010-01-08 14:42:43 -0800195$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
Russell King4486b862007-06-03 18:54:42 +0100197CFLAGS_font.o := -Dstatic=
198
199$(obj)/font.c: $(FONTC)
200 $(call cmd,shipped)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
Russell Kingd93c3332010-09-19 16:16:58 +0100202$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 @sed "$(SEDFLAGS)" < $< > $@
Dave Martin424e5992012-02-10 18:07:07 -0800204
205$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
206 $(call cmd,shipped)