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. That's normally the same
15 # compiler for the rest of the kernel, with the -m32 flag added.
16 # To make it easier to setup a cross compiler,
17 # CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
18 # in the toplevel makefile.
22 BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
23 -fno-strict-aliasing -Os -msoft-float -pipe \
24 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
25 -isystem $(shell $(CROSS32CC) -print-file-name=include)
26 BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
28 ifeq ($(call cc-option-yn, -fstack-protector),y)
29 BOOTCFLAGS += -fno-stack-protector
32 BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
34 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
35 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
37 zlib := inffast.c inflate.c inftrees.c
38 zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
39 zliblinuxheader := zlib.h zconf.h zutil.h
41 $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
42 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
44 src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
45 ns16550.c serial.c simple_alloc.c div64.S util.S \
46 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
47 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
49 src-plat := of.c cuboot-83xx.c cuboot-85xx.c holly.c \
50 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
51 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c cuboot-pq2.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)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
83 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
84 empty.c zImage zImage.coff.lds zImage.ps3.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 $(obj)/zImage.ps3.lds
109 wrapper :=$(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
138 image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
139 image-$(CONFIG_PPC_ISERIES) += zImage.iseries
140 image-$(CONFIG_DEFAULT_UIMAGE) += uImage
142 ifneq ($(CONFIG_DEVICE_TREE),"")
143 image-$(CONFIG_PPC_8xx) += cuImage.8xx
144 image-$(CONFIG_8260) += cuImage.pq2
145 image-$(CONFIG_PPC_83xx) += cuImage.83xx
146 image-$(CONFIG_PPC_85xx) += cuImage.85xx
147 image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
148 image-$(CONFIG_BAMBOO) += treeImage.bamboo
151 # For 32-bit powermacs, build the COFF and miboot images
152 # as well as the ELF images.
153 ifeq ($(CONFIG_PPC32),y)
154 image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
157 initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
158 initrd-y := $(patsubst zImage%, zImage.initrd%, \
159 $(patsubst treeImage%, treeImage.initrd%, $(image-y)))
160 initrd-y := $(filter-out $(image-y), $(initrd-y))
161 targets += $(image-y) $(initrd-y)
163 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
165 # If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
166 # empty string, define 'dts' to be path to the dts
167 # CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
168 ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
169 ifneq ($(CONFIG_DEVICE_TREE),"")
170 dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
171 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
175 # Don't put the ramdisk on the pattern rule; when its missing make will try
176 # the pattern rule with less dependencies that also matches (even with the
177 # hard dependency listed).
178 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
179 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
181 $(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
182 $(call if_changed,wrap,$*,$(dts))
184 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
186 $(obj)/vmlinux.strip: vmlinux
187 $(STRIP) -s -R .comment $< -o $@
189 $(obj)/zImage.iseries: vmlinux
190 $(STRIP) -s -R .comment $< -o $@
192 $(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
193 $(STRIP) -s -R .comment $< -o vmlinux.strip
194 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
196 $(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
197 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
199 $(obj)/uImage: vmlinux $(wrapperbits)
200 $(call if_changed,wrap,uboot)
202 $(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
203 $(call if_changed,wrap,cuboot-$*,$(dts))
205 $(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
206 $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
208 $(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
209 $(call if_changed,wrap,treeboot-$*,$(dts))
211 # If there isn't a platform selected then just strip the vmlinux.
213 image-y := vmlinux.strip
216 $(obj)/zImage: $(addprefix $(obj)/, $(image-y))
218 $(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
221 install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
222 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
224 # anything not in $(targets)
225 clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
228 # clean up files cached by wrapper
229 clean-kernel := vmlinux.strip vmlinux.bin
230 clean-kernel += $(addsuffix .gz,$(clean-kernel))
231 # If not absolute clean-files are relative to $(obj).
232 clean-files += $(addprefix $(objtree)/, $(clean-kernel))