2 # linux/arch/arm/boot/compressed/Makefile
4 # create a compressed vmlinuz image from the original vmlinux
9 # Ensure that MMCIF loader code appears early in the image
10 # to minimise that number of bocks that have to be read in
12 ifeq ($(CONFIG_ZBOOT_ROM_MMCIF
),y
)
13 OBJS
+= mmcif-sh7372.o
16 # Ensure that SDHI loader code appears early in the image
17 # to minimise that number of bocks that have to be read in
19 ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI
),y
)
20 OBJS
+= sdhi-shmobile.o
24 AFLAGS_head.o
+= -DTEXT_OFFSET
=$(TEXT_OFFSET
)
26 OBJS
+= misc.o decompress.o
27 ifeq ($(CONFIG_DEBUG_UNCOMPRESS
),y
)
30 FONTC
= $(srctree
)/lib
/fonts
/font_acorn_8x8.c
32 # string library code (-Os is enforced to keep it much smaller)
34 CFLAGS_string.o
:= -Os
36 ifeq ($(CONFIG_ARM_VIRT_EXT
),y
)
41 # Architecture dependencies
43 ifeq ($(CONFIG_ARCH_ACORN
),y
)
44 OBJS
+= ll_char_wr.o font.o
47 ifeq ($(CONFIG_ARCH_SA1100
),y
)
51 ifeq ($(CONFIG_CPU_XSCALE
),y
)
55 ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID
),y
)
56 OBJS
+= head-sharpsl.o
59 ifeq ($(CONFIG_CPU_ENDIAN_BE32
),y
)
60 ifeq ($(CONFIG_CPU_CP15
),y
)
63 # The endian should be set by h/w design.
67 ifeq ($(CONFIG_ARCH_SHMOBILE_LEGACY
),y
)
68 OBJS
+= head-shmobile.o
72 # We now have a PIC decompressor implementation. Decompressors running
73 # from RAM should not define ZTEXTADDR. Decompressors running directly
74 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
75 # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
76 ifeq ($(CONFIG_ZBOOT_ROM
),y
)
77 ZTEXTADDR
:= $(CONFIG_ZBOOT_ROM_TEXT
)
78 ZBSSADDR
:= $(CONFIG_ZBOOT_ROM_BSS
)
84 SEDFLAGS
= s
/TEXT_START
/$(ZTEXTADDR
)/;s
/BSS_START
/$(ZBSSADDR
)/
86 suffix_
$(CONFIG_KERNEL_GZIP
) = gzip
87 suffix_
$(CONFIG_KERNEL_LZO
) = lzo
88 suffix_
$(CONFIG_KERNEL_LZMA
) = lzma
89 suffix_
$(CONFIG_KERNEL_XZ
) = xzkern
90 suffix_
$(CONFIG_KERNEL_LZ4
) = lz4
92 # Borrowed libfdt files for the ATAG compatibility mode
94 libfdt
:= fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
95 libfdt_hdrs
:= fdt.h libfdt.h libfdt_internal.h
97 libfdt_objs
:= $(addsuffix .o
, $(basename $(libfdt
)))
99 $(addprefix $(obj
)/,$(libfdt
) $(libfdt_hdrs
)): $(obj
)/%: $(srctree
)/scripts
/dtc
/libfdt
/%
102 $(addprefix $(obj
)/,$(libfdt_objs
) atags_to_fdt.o
): \
103 $(addprefix $(obj
)/,$(libfdt_hdrs
))
105 ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT
),y
)
106 OBJS
+= $(libfdt_objs
) atags_to_fdt.o
109 targets
:= vmlinux vmlinux.lds \
110 piggy.
$(suffix_y
) piggy.
$(suffix_y
).o \
111 lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \
112 bswapsdi2.S font.o font.c head.o misc.o
$(OBJS
)
114 # Make sure files are removed during clean
115 extra-y
+= piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \
116 lib1funcs.S ashldi3.S bswapsdi2.S
$(libfdt
) $(libfdt_hdrs
) \
119 ifeq ($(CONFIG_FUNCTION_TRACER
),y
)
120 ORIG_CFLAGS
:= $(KBUILD_CFLAGS
)
121 KBUILD_CFLAGS
= $(subst -pg
, , $(ORIG_CFLAGS
))
124 ccflags-y
:= -fpic
-mno-single-pic-base
-fno-builtin
-I
$(obj
)
125 asflags-y
:= -DZIMAGE
127 # Supply kernel BSS size to the decompressor via a linker symbol.
128 KBSS_SZ
= $(shell $(CROSS_COMPILE
)size
$(obj
)/..
/..
/..
/..
/vmlinux | \
129 awk
'END{print $$3}')
130 LDFLAGS_vmlinux
= --defsym _kernel_bss_size
=$(KBSS_SZ
)
131 # Supply ZRELADDR to the decompressor via a linker symbol.
132 ifneq ($(CONFIG_AUTO_ZRELADDR
),y
)
133 LDFLAGS_vmlinux
+= --defsym zreladdr
=$(ZRELADDR
)
135 ifeq ($(CONFIG_CPU_ENDIAN_BE8
),y
)
136 LDFLAGS_vmlinux
+= --be8
139 LDFLAGS_vmlinux
+= -p
140 # Report unresolved symbol references
141 LDFLAGS_vmlinux
+= --no-undefined
142 # Delete all temporary local symbols
143 LDFLAGS_vmlinux
+= -X
144 # Next argument is a linker script
145 LDFLAGS_vmlinux
+= -T
147 # For __aeabi_uidivmod
148 lib1funcs
= $(obj
)/lib1funcs.o
150 $(obj
)/lib1funcs.S
: $(srctree
)/arch
/$(SRCARCH
)/lib
/lib1funcs.S
154 ashldi3
= $(obj
)/ashldi3.o
156 $(obj
)/ashldi3.S
: $(srctree
)/arch
/$(SRCARCH
)/lib
/ashldi3.S
159 # For __bswapsi2, __bswapdi2
160 bswapsdi2
= $(obj
)/bswapsdi2.o
162 $(obj
)/bswapsdi2.S
: $(srctree
)/arch
/$(SRCARCH
)/lib
/bswapsdi2.S
165 # We need to prevent any GOTOFF relocs being used with references
166 # to symbols in the .bss section since we cannot relocate them
167 # independently from the rest at run time. This can be achieved by
168 # ensuring that no private .bss symbols exist, as global symbols
169 # always have a GOT entry which is what we need.
170 # The .data section is already discarded by the linker script so no need
171 # to bother about it here.
172 check_for_bad_syms
= \
173 bad_syms
=$$($(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
)
178 check_for_multiple_zreladdr
= \
179 if
[ $(words $(ZRELADDR
)) -gt
1 -a
"$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
180 echo
'multiple zreladdrs: $(ZRELADDR)'; \
181 echo
'This needs CONFIG_AUTO_ZRELADDR to be set'; \
185 $(obj
)/vmlinux
: $(obj
)/vmlinux.lds
$(obj
)/$(HEAD
) $(obj
)/piggy.
$(suffix_y
).o \
186 $(addprefix $(obj
)/, $(OBJS
)) $(lib1funcs
) $(ashldi3
) \
188 @
$(check_for_multiple_zreladdr
)
189 $(call if_changed
,ld)
190 @
$(check_for_bad_syms
)
192 $(obj
)/piggy.
$(suffix_y
): $(obj
)/..
/Image FORCE
193 $(call if_changed
,$(suffix_y
))
195 $(obj
)/piggy.
$(suffix_y
).o
: $(obj
)/piggy.
$(suffix_y
) FORCE
197 CFLAGS_font.o
:= -Dstatic
=
199 $(obj
)/font.c
: $(FONTC
)
202 $(obj
)/vmlinux.lds
: $(obj
)/vmlinux.lds.in arch
/arm
/boot
/Makefile
$(KCONFIG_CONFIG
)
203 @sed
"$(SEDFLAGS)" < $< > $@
205 $(obj
)/hyp-stub.S
: $(srctree
)/arch
/$(SRCARCH
)/kernel
/hyp-stub.S