Makefile 5.5 KB
Newer Older
L
Linus Torvalds 已提交
1 2 3 4 5 6
#
# linux/arch/arm/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#

7 8
OBJS		=

9
# Ensure that MMCIF loader code appears early in the image
10 11 12 13 14
# to minimise that number of bocks that have to be read in
# order to load it.
ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
OBJS		+= mmcif-sh7372.o
endif
15 16 17 18 19 20 21

# Ensure that SDHI loader code appears early in the image
# to minimise that number of bocks that have to be read in
# order to load it.
ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y)
OBJS		+= sdhi-shmobile.o
OBJS		+= sdhi-sh7372.o
22 23
endif

24
AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
L
Linus Torvalds 已提交
25
HEAD	= head.o
26
OBJS	+= misc.o decompress.o
27
FONTC	= $(srctree)/drivers/video/console/font_acorn_8x8.c
L
Linus Torvalds 已提交
28

29 30 31 32
# string library code (-Os is enforced to keep it much smaller)
OBJS		+= string.o
CFLAGS_string.o	:= -Os

33 34 35 36
ifeq ($(CONFIG_ARM_VIRT_EXT),y)
OBJS		+= hyp-stub.o
endif

L
Linus Torvalds 已提交
37 38 39 40
#
# Architecture dependencies
#
ifeq ($(CONFIG_ARCH_ACORN),y)
41
OBJS		+= ll_char_wr.o font.o
L
Linus Torvalds 已提交
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
endif

ifeq ($(CONFIG_ARCH_SHARK),y)
OBJS		+= head-shark.o ofw-shark.o
endif

ifeq ($(CONFIG_ARCH_P720T),y)
# Borrow this code from SA1100
OBJS		+= head-sa1100.o
endif

ifeq ($(CONFIG_ARCH_SA1100),y)
OBJS		+= head-sa1100.o
endif

ifeq ($(CONFIG_CPU_XSCALE),y)
OBJS		+= head-xscale.o
endif

61
ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
L
Linus Torvalds 已提交
62 63 64
OBJS		+= head-sharpsl.o
endif

65
ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
66
ifeq ($(CONFIG_CPU_CP15),y)
L
Linus Torvalds 已提交
67
OBJS		+= big-endian.o
68 69 70
else
# The endian should be set by h/w design.
endif
L
Linus Torvalds 已提交
71 72
endif

73 74 75 76
ifeq ($(CONFIG_ARCH_SHMOBILE),y)
OBJS		+= head-shmobile.o
endif

L
Linus Torvalds 已提交
77 78 79 80 81 82 83 84 85 86
#
# We now have a PIC decompressor implementation.  Decompressors running
# from RAM should not define ZTEXTADDR.  Decompressors running directly
# from ROM or Flash must define ZTEXTADDR (preferably via the config)
# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
ifeq ($(CONFIG_ZBOOT_ROM),y)
ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
else
ZTEXTADDR	:= 0
87
ZBSSADDR	:= ALIGN(8)
L
Linus Torvalds 已提交
88 89 90 91
endif

SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/

92 93
suffix_$(CONFIG_KERNEL_GZIP) = gzip
suffix_$(CONFIG_KERNEL_LZO)  = lzo
94
suffix_$(CONFIG_KERNEL_LZMA) = lzma
95
suffix_$(CONFIG_KERNEL_XZ)   = xzkern
96

97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
# Borrowed libfdt files for the ATAG compatibility mode

libfdt		:= fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
libfdt_hdrs	:= fdt.h libfdt.h libfdt_internal.h

libfdt_objs	:= $(addsuffix .o, $(basename $(libfdt)))

$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
	$(call cmd,shipped)

$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
	$(addprefix $(obj)/,$(libfdt_hdrs))

ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
OBJS	+= $(libfdt_objs) atags_to_fdt.o
endif

114 115
targets       := vmlinux vmlinux.lds \
		 piggy.$(suffix_y) piggy.$(suffix_y).o \
116 117
		 lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S \
		 font.o font.c head.o misc.o $(OBJS)
A
Abhishek Sagar 已提交
118

119
# Make sure files are removed during clean
120 121
extra-y       += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern \
		 lib1funcs.S ashldi3.S $(libfdt) $(libfdt_hdrs)
122

123
ifeq ($(CONFIG_FUNCTION_TRACER),y)
A
Abhishek Sagar 已提交
124 125 126 127
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif

128
ccflags-y := -fpic -fno-builtin -I$(obj)
129
asflags-y := -Wa,-march=all -DZIMAGE
L
Linus Torvalds 已提交
130

131
# Supply kernel BSS size to the decompressor via a linker symbol.
132 133
KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
		awk 'END{print $$3}')
134
LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
135 136
# Supply ZRELADDR to the decompressor via a linker symbol.
ifneq ($(CONFIG_AUTO_ZRELADDR),y)
137
LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
138
endif
139 140 141
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
endif
142 143 144 145 146 147 148 149 150 151 152 153
# ?
LDFLAGS_vmlinux += -p
# Report unresolved symbol references
LDFLAGS_vmlinux += --no-undefined
# Delete all temporary local symbols
LDFLAGS_vmlinux += -X
# Next argument is a linker script
LDFLAGS_vmlinux += -T

# For __aeabi_uidivmod
lib1funcs = $(obj)/lib1funcs.o

154
$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S
155
	$(call cmd,shipped)
L
Linus Torvalds 已提交
156

157 158 159 160 161 162
# For __aeabi_llsl
ashldi3 = $(obj)/ashldi3.o

$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S
	$(call cmd,shipped)

163 164 165 166 167 168 169 170 171 172 173 174 175
# We need to prevent any GOTOFF relocs being used with references
# to symbols in the .bss section since we cannot relocate them
# independently from the rest at run time.  This can be achieved by
# ensuring that no private .bss symbols exist, as global symbols
# always have a GOT entry which is what we need.
# The .data section is already discarded by the linker script so no need
# to bother about it here.
check_for_bad_syms = \
bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
[ -z "$$bad_syms" ] || \
  ( echo "following symbols must have non local/private scope:" >&2; \
    echo "$$bad_syms" >&2; rm -f $@; false )

176
check_for_multiple_zreladdr = \
177
if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
178 179 180 181 182
	echo 'multiple zreladdrs: $(ZRELADDR)'; \
	echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
	false; \
fi

183
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
184
		$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) FORCE
185
	@$(check_for_multiple_zreladdr)
L
Linus Torvalds 已提交
186
	$(call if_changed,ld)
187
	@$(check_for_bad_syms)
L
Linus Torvalds 已提交
188

189 190
$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
	$(call if_changed,$(suffix_y))
L
Linus Torvalds 已提交
191

192
$(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
L
Linus Torvalds 已提交
193

194 195 196 197
CFLAGS_font.o := -Dstatic=

$(obj)/font.c: $(FONTC)
	$(call cmd,shipped)
L
Linus Torvalds 已提交
198

199
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
L
Linus Torvalds 已提交
200
	@sed "$(SEDFLAGS)" < $< > $@
201 202 203

$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S
	$(call cmd,shipped)