1 # Makefile for making ELF bootable images for booting on CHRP
4 # Geert Uytterhoeven September 1997
6 # Based on coffboot by Paul Mackerras
7 # Simplified for ppc64 by Todd Inglett
9 # NOTE: this code is built for 32 bit in ELF32 format even though
10 # it packages a 64 bit kernel. We do this to simplify the
11 # bootloader and increase compatibility with OpenFirmware.
13 # To this end we need to define BOOTCC, etc, as the tools
14 # needed to build the 32 bit image. These are normally HOSTCC,
15 # but may be a third compiler if, for example, you are cross
16 # compiling from an intel box. Once the 64bit ppc gcc is
17 # stable it will probably simply be a compiler switch to
18 # compile for 32bit mode.
19 # To make it easier to setup a cross compiler,
20 # CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
21 # in the toplevel makefile.
26 BOOTCFLAGS
:= $(HOSTCFLAGS
) -fno-builtin
-nostdinc
-isystem \
27 $(shell $(CROSS32CC
) -print-file-name
=include) -fPIC
28 BOOTAFLAGS
:= -D__ASSEMBLY__
$(BOOTCFLAGS
) -traditional
-nostdinc
30 ifeq ($(call cc-option-yn
, -fstack-protector
),y
)
31 BOOTCFLAGS
+= -fno-stack-protector
34 BOOTCFLAGS
+= -I
$(obj
) -I
$(srctree
)/$(obj
)
36 $(obj
)/44x.o
: BOOTCFLAGS
+= -mcpu
=440
37 $(obj
)/ebony.o
: BOOTCFLAGS
+= -mcpu
=440
39 zlib
:= inffast.c inflate.c inftrees.c
40 zlibheader
:= inffast.h inffixed.h inflate.h inftrees.h infutil.h
41 zliblinuxheader
:= zlib.h zconf.h zutil.h
43 $(addprefix $(obj
)/,$(zlib
) gunzip_util.o main.o
): \
44 $(addprefix $(obj
)/,$(zliblinuxheader
)) $(addprefix $(obj
)/,$(zlibheader
))
46 src-wlib
:= string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
47 ns16550.c serial.c simple_alloc.c div64.S util.S \
48 gunzip_util.c elf_util.c
$(zlib
) devtree.c \
49 44x.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c
50 src-plat
:= of.c cuboot-83xx.c cuboot-85xx.c holly.c \
51 cuboot-ebony.c treeboot-ebony.c prpmc2800.c
52 src-boot
:= $(src-wlib
) $(src-plat
) empty.c
54 src-boot
:= $(addprefix $(obj
)/, $(src-boot
))
55 obj-boot
:= $(addsuffix .o
, $(basename $(src-boot
)))
56 obj-wlib
:= $(addsuffix .o
, $(basename $(addprefix $(obj
)/, $(src-wlib
))))
57 obj-plat
:= $(addsuffix .o
, $(basename $(addprefix $(obj
)/, $(src-plat
))))
59 quiet_cmd_copy_zlib
= COPY
$@
60 cmd_copy_zlib
= sed
"s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
62 quiet_cmd_copy_zlibheader
= COPY
$@
63 cmd_copy_zlibheader
= sed
"s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
65 quiet_cmd_copy_zliblinuxheader
= COPY
$@
66 cmd_copy_zliblinuxheader
= sed
"s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
68 $(addprefix $(obj
)/,$(zlib
)): $(obj
)/%: $(srctree
)/lib
/zlib_inflate
/%
71 $(addprefix $(obj
)/,$(zlibheader
)): $(obj
)/%: $(srctree
)/lib
/zlib_inflate
/%
72 $(call cmd
,copy_zlibheader
)
74 $(addprefix $(obj
)/,$(zliblinuxheader
)): $(obj
)/%: $(srctree
)/include/linux
/%
75 $(call cmd
,copy_zliblinuxheader
)
80 $(obj
)/zImage.lds
$(obj
)/zImage.coff.lds
: $(obj
)/%: $(srctree
)/$(src
)/%.S
83 clean-files
:= $(zlib
) $(zlibheader
) $(zliblinuxheader
) \
84 empty.c zImage.coff.lds zImage.lds
86 quiet_cmd_bootcc
= BOOTCC
$@
87 cmd_bootcc
= $(CROSS32CC
) -Wp
,-MD
,$(depfile
) $(BOOTCFLAGS
) -c
-o
$@
$<
89 quiet_cmd_bootas
= BOOTAS
$@
90 cmd_bootas
= $(CROSS32CC
) -Wp
,-MD
,$(depfile
) $(BOOTAFLAGS
) -c
-o
$@
$<
92 quiet_cmd_bootar
= BOOTAR
$@
93 cmd_bootar
= $(CROSS32AR
) -cr
$@.
$$$$ $(filter-out FORCE
,$^
); mv
$@.
$$$$ $@
95 $(patsubst %.c
,%.o
, $(filter %.c
, $(src-boot
))): %.o
: %.c FORCE
96 $(call if_changed_dep
,bootcc
)
97 $(patsubst %.S
,%.o
, $(filter %.S
, $(src-boot
))): %.o
: %.S FORCE
98 $(call if_changed_dep
,bootas
)
100 $(obj
)/wrapper.a
: $(obj-wlib
) FORCE
101 $(call if_changed
,bootar
)
103 hostprogs-y
:= addnote addRamDisk hack-coff mktree
105 targets
+= $(patsubst $(obj
)/%,%,$(obj-boot
) wrapper.a
)
106 extra-y
:= $(obj
)/wrapper.a
$(obj-plat
) $(obj
)/empty.o \
107 $(obj
)/zImage.lds
$(obj
)/zImage.coff.lds
109 wrapper
:=$(srctree
)/$(src
)/wrapper
110 wrapperbits
:= $(extra-y
) $(addprefix $(obj
)/,addnote hack-coff mktree
) \
114 # Bits for building various flavours of zImage
116 ifneq ($(CROSS32_COMPILE
),)
117 CROSSWRAP
:= -C
"$(CROSS32_COMPILE)"
119 ifneq ($(CROSS_COMPILE
),)
120 CROSSWRAP
:= -C
"$(CROSS_COMPILE)"
124 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
125 quiet_cmd_wrap
= WRAP
$@
126 cmd_wrap
=$(CONFIG_SHELL
) $(wrapper
) -c
-o
$@
-p
$2 $(CROSSWRAP
) \
127 $(if
$3, -s
$3)$(if
$4, -d
$4)$(if
$5, -i
$5) vmlinux
129 image-
$(CONFIG_PPC_PSERIES
) += zImage.pseries
130 image-
$(CONFIG_PPC_MAPLE
) += zImage.pseries
131 image-
$(CONFIG_PPC_IBM_CELL_BLADE
) += zImage.pseries
132 image-
$(CONFIG_PPC_PS3
) += zImage.ps3
133 image-
$(CONFIG_PPC_CELLEB
) += zImage.pseries
134 image-
$(CONFIG_PPC_CHRP
) += zImage.chrp
135 image-
$(CONFIG_PPC_EFIKA
) += zImage.chrp
136 image-
$(CONFIG_PPC_PMAC
) += zImage.pmac
137 image-
$(CONFIG_PPC_HOLLY
) += zImage.holly-elf
138 image-
$(CONFIG_PPC_PRPMC2800
) += zImage.prpmc2800
139 image-
$(CONFIG_DEFAULT_UIMAGE
) += uImage
141 ifneq ($(CONFIG_DEVICE_TREE
),"")
142 image-
$(CONFIG_PPC_83xx
) += cuImage
.83xx
143 image-
$(CONFIG_PPC_85xx
) += cuImage
.85xx
144 image-
$(CONFIG_EBONY
) += treeImage.ebony cuImage.ebony
147 # For 32-bit powermacs, build the COFF and miboot images
148 # as well as the ELF images.
149 ifeq ($(CONFIG_PPC32
),y
)
150 image-
$(CONFIG_PPC_PMAC
) += zImage.coff zImage.miboot
153 initrd-
:= $(patsubst zImage
%, zImage.initrd
%, $(image-n
) $(image-
))
154 initrd-y
:= $(patsubst zImage
%, zImage.initrd
%, \
155 $(patsubst treeImage
%, treeImage.initrd
%, $(image-y
)))
156 initrd-y
:= $(filter-out $(image-y
), $(initrd-y
))
157 targets
+= $(image-y
) $(initrd-y
)
159 $(addprefix $(obj
)/, $(initrd-y
)): $(obj
)/ramdisk.image.gz
161 dts-
:= $(patsubst zImage
%, zImage.dts
%, $(image-n
) $(image-
))
162 dts-y
:= $(patsubst zImage
%, zImage.dts
%, $(image-y
))
163 dts-y
:= $(filter-out $(image-y
), $(dts-y
))
164 targets
+= $(image-y
) $(dts-y
)
166 dts_initrd-
:= $(patsubst zImage
%, zImage.dts_initrd
%, $(image-n
) $(image-
))
167 dts_initrd-y
:= $(patsubst zImage
%, zImage.dts_initrd
%, $(image-y
))
168 dts_initrd-y
:= $(filter-out $(image-y
), $(dts_initrd-y
))
169 targets
+= $(image-y
) $(dts_initrd-y
)
171 $(addprefix $(obj
)/, $(dts_initrd-y
)): $(obj
)/ramdisk.image.gz
173 # Don't put the ramdisk on the pattern rule; when its missing make will try
174 # the pattern rule with less dependencies that also matches (even with the
175 # hard dependency listed).
176 $(obj
)/zImage.dts_initrd.
%: vmlinux
$(wrapperbits
) $(dts
) $(obj
)/ramdisk.image.gz
177 $(call if_changed
,wrap
,$*,$(dts
),,$(obj
)/ramdisk.image.gz
)
179 $(obj
)/zImage.dts.
%: vmlinux
$(wrapperbits
) $(dts
)
180 $(call if_changed
,wrap
,$*,$(dts
))
182 $(obj
)/zImage.initrd.
%: vmlinux
$(wrapperbits
)
183 $(call if_changed
,wrap
,$*,,,$(obj
)/ramdisk.image.gz
)
185 $(obj
)/zImage.
%: vmlinux
$(wrapperbits
)
186 $(call if_changed
,wrap
,$*)
188 $(obj
)/zImage.ps3
: vmlinux
189 $(STRIP
) -s
-R .comment
$< -o
$@
191 $(obj
)/zImage.initrd.ps3
: vmlinux
192 @echo
" WARNING zImage.initrd.ps3 not supported (yet)"
194 $(obj
)/zImage.holly-elf
: vmlinux
$(wrapperbits
)
195 $(call if_changed
,wrap
,holly
,$(obj
)/dts
/holly.dts
,,)
197 $(obj
)/zImage.initrd.holly-elf
: vmlinux
$(wrapperbits
) $(obj
)/ramdisk.image.gz
198 $(call if_changed
,wrap
,holly
,$(obj
)/dts
/holly.dts
,,$(obj
)/ramdisk.image.gz
)
200 $(obj
)/uImage
: vmlinux
$(wrapperbits
)
201 $(call if_changed
,wrap
,uboot
)
203 # CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
204 dts
= $(if
$(shell echo
$(CONFIG_DEVICE_TREE
) | grep
'^/'),\
205 ,$(srctree
)/$(src
)/dts
/)$(CONFIG_DEVICE_TREE
:"%"=%)
207 $(obj
)/cuImage.
%: vmlinux
$(dts
) $(wrapperbits
)
208 $(call if_changed
,wrap
,cuboot-
$*,$(dts
))
210 $(obj
)/treeImage.initrd.
%: vmlinux
$(dts
) $(wrapperbits
)
211 $(call if_changed
,wrap
,treeboot-
$*,$(dts
),,$(obj
)/ramdisk.image.gz
)
213 $(obj
)/treeImage.
%: vmlinux
$(dts
) $(wrapperbits
)
214 $(call if_changed
,wrap
,treeboot-
$*,$(dts
))
216 $(obj
)/zImage
: $(addprefix $(obj
)/, $(image-y
))
218 $(obj
)/zImage.initrd
: $(addprefix $(obj
)/, $(initrd-y
))
220 $(obj
)/zImage.dts
: $(addprefix $(obj
)/, $(dts-y
))
222 $(obj
)/zImage.dts_initrd
: $(addprefix $(obj
)/, $(dts_initrd-y
))
226 install: $(CONFIGURE
) $(addprefix $(obj
)/, $(image-y
))
227 sh
-x
$(srctree
)/$(src
)/install.sh
"$(KERNELRELEASE)" vmlinux System.map
"$(INSTALL_PATH)" $<
229 # anything not in $(targets)
230 clean-files
+= $(image-
) $(initrd-
) zImage zImage.initrd cuImage.
* \
231 treeImage.
* zImage.dts zImage.dts_initrd
233 # clean up files cached by wrapper
234 clean-kernel
:= vmlinux.
strip vmlinux.bin
235 clean-kernel
+= $(addsuffix .gz
,$(clean-kernel
))
236 # If not absolute clean-files are relative to $(obj).
237 clean-files
+= $(addprefix $(objtree
)/, $(clean-kernel
))