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linux_dsm_epyc7002/arch/powerpc/boot/Makefile
Joel Stanley 747b217608 powerpc/boot: Build boot wrapper with optimisations 
The boot wrapper is currently built with -Os. By building with O2 we
can meaningfully reduce the time decompressing the kernel.

I tested by comparing 10 runs of each option in Qemu and on hardware.
The kernel is compressed with KERNEL_XZ built with GCC 8.2.0-7ubuntu1.
The values are counts of the timebase.

Qemu TCG powernv Power8:

              Os            O2            O3
 median       10221123889   6201518438    6568186825
 stddev        1361267211    429090641     657930076
 improvement                    39.33%        35.74%

Palmetto Power8:

              Os            O2            O3
 median           50279         50599          35790
 stddev       992144533     627130655      623721078
 improvement                   36.79%         37.13%

Romulus Power9:

              Os            O2            O3
 median       670312391     454733720      448881398
 stddev          157569        107276         108760
 improvement                   32.16%         33.03%

TCG was quite noisy, with every few runs producing an outlier. Even so,
O2 is faster than O3. On hardware the numbers were less noisy and O3 is
slightly faster than O2.

The wrapper size increases when moving from Os. Comparing zImage.epapr
to the existing Os build using bloat-o-meter:

  Before=43401, After=56837 (13KB), chg +30.96%
  Before=43401, After=64305 (20KB), chg +48.16%

I chose O2 for a balance between Qemu and hardware speed up.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-13 22:21:25 +11:00

511 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0
# Makefile for making ELF bootable images for booting on CHRP
# using Open Firmware.
#
# Geert Uytterhoeven September 1997
#
# Based on coffboot by Paul Mackerras
# Simplified for ppc64 by Todd Inglett
#
# NOTE: this code is built for 32 bit in ELF32 format even though
# it packages a 64 bit kernel. We do this to simplify the
# bootloader and increase compatibility with OpenFirmware.
#
# To this end we need to define BOOTCC, etc, as the tools
# needed to build the 32 bit image. That's normally the same
# compiler for the rest of the kernel, with the -m32 flag added.
# To make it easier to setup a cross compiler,
# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
# in the toplevel makefile.
all: $(obj)/zImage
compress-$(CONFIG_KERNEL_GZIP) := CONFIG_KERNEL_GZIP
compress-$(CONFIG_KERNEL_XZ) := CONFIG_KERNEL_XZ
ifdef CROSS32_COMPILE
BOOTCC := $(CROSS32_COMPILE)gcc
BOOTAR := $(CROSS32_COMPILE)ar
else
BOOTCC := $(CC)
BOOTAR := $(AR)
endif
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
-pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
-D$(compress-y)
ifdef CONFIG_PPC64_BOOT_WRAPPER
BOOTCFLAGS += -m64
else
BOOTCFLAGS += -m32
endif
BOOTCFLAGS += -isystem $(shell $(BOOTCC) -print-file-name=include)
ifdef CONFIG_CPU_BIG_ENDIAN
BOOTCFLAGS += -mbig-endian
else
BOOTCFLAGS += -mlittle-endian
BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
endif
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
BOOTARFLAGS := -cr$(KBUILD_ARFLAGS)
ifdef CONFIG_DEBUG_INFO
BOOTCFLAGS += -g
endif
ifeq ($(call cc-option-yn, -fstack-protector),y)
BOOTCFLAGS += -fno-stack-protector
endif
BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj)
DTC_FLAGS ?= -p 1024
$(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-currituck.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-akebono.o: BOOTCFLAGS += -mcpu=405
$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
# The pre-boot decompressors pull in a lot of kernel headers and other source
# files. This creates a bit of a dependency headache since we need to copy
# these files into the build dir, fix up any includes and ensure that dependent
# files are copied in the right order.
# these need to be seperate variables because they are copied out of different
# directories in the kernel tree. Sure you COULd merge them, but it's a
# cure-is-worse-than-disease situation.
zlib-decomp-$(CONFIG_KERNEL_GZIP) := decompress_inflate.c
zlib-$(CONFIG_KERNEL_GZIP) := inffast.c inflate.c inftrees.c
zlibheader-$(CONFIG_KERNEL_GZIP) := inffast.h inffixed.h inflate.h inftrees.h infutil.h
zliblinuxheader-$(CONFIG_KERNEL_GZIP) := zlib.h zconf.h zutil.h
$(addprefix $(obj)/, decompress.o): \
$(addprefix $(obj)/,$(zlib-decomp-y))
$(addprefix $(obj)/, $(zlib-decomp-y)): \
$(addprefix $(obj)/,$(zliblinuxheader-y)) \
$(addprefix $(obj)/,$(zlibheader-y)) \
$(addprefix $(obj)/,$(zlib-y))
$(addprefix $(obj)/,$(zlib-y)): \
$(addprefix $(obj)/,$(zliblinuxheader-y)) \
$(addprefix $(obj)/,$(zlibheader-y))
libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
libfdtheader := fdt.h libfdt.h libfdt_internal.h
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o \
treeboot-akebono.o treeboot-currituck.o treeboot-iss4xx.o): \
$(addprefix $(obj)/,$(libfdtheader))
src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \
$(libfdt) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
elf_util.c $(zlib-y) devtree.c stdlib.c \
oflib.c ofconsole.c cuboot.c
src-wlib-$(CONFIG_PPC_MPC52XX) += mpc52xx-psc.c
src-wlib-$(CONFIG_PPC64_BOOT_WRAPPER) += opal-calls.S opal.c
ifndef CONFIG_PPC64_BOOT_WRAPPER
src-wlib-y += crtsavres.S
endif
src-wlib-$(CONFIG_40x) += 4xx.c planetcore.c
src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo.c
src-wlib-$(CONFIG_PPC_8xx) += mpc8xx.c planetcore.c fsl-soc.c
src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c planetcore.c
src-wlib-$(CONFIG_EMBEDDED6xx) += ugecon.c fsl-soc.c
src-wlib-$(CONFIG_XILINX_VIRTEX) += uartlite.c
src-wlib-$(CONFIG_CPM) += cpm-serial.c
src-plat-y := of.c epapr.c
src-plat-$(CONFIG_40x) += fixed-head.S ep405.c cuboot-hotfoot.c \
treeboot-walnut.c cuboot-acadia.c \
cuboot-kilauea.c simpleboot.c \
virtex405-head.S virtex.c
src-plat-$(CONFIG_44x) += treeboot-ebony.c cuboot-ebony.c treeboot-bamboo.c \
cuboot-bamboo.c cuboot-sam440ep.c \
cuboot-sequoia.c cuboot-rainier.c \
cuboot-taishan.c cuboot-katmai.c \
cuboot-warp.c cuboot-yosemite.c \
treeboot-iss4xx.c treeboot-currituck.c \
treeboot-akebono.c \
simpleboot.c fixed-head.S virtex.c
src-plat-$(CONFIG_PPC_8xx) += cuboot-8xx.c fixed-head.S ep88xc.c redboot-8xx.c
src-plat-$(CONFIG_PPC_MPC52xx) += cuboot-52xx.c
src-plat-$(CONFIG_PPC_82xx) += cuboot-pq2.c fixed-head.S ep8248e.c cuboot-824x.c
src-plat-$(CONFIG_PPC_83xx) += cuboot-83xx.c fixed-head.S redboot-83xx.c
src-plat-$(CONFIG_FSL_SOC_BOOKE) += cuboot-85xx.c cuboot-85xx-cpm2.c
src-plat-$(CONFIG_EMBEDDED6xx) += cuboot-pq2.c cuboot-mpc7448hpc2.c \
gamecube-head.S gamecube.c \
wii-head.S wii.c holly.c \
fixed-head.S mvme5100.c
src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c
src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c
src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S
src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S
src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S
src-plat-$(CONFIG_MVME7100) += motload-head.S mvme7100.c
src-wlib := $(sort $(src-wlib-y))
src-plat := $(sort $(src-plat-y))
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
obj-boot := $(addsuffix .o, $(basename $(src-boot)))
obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
obj-plat: $(libfdt)
quiet_cmd_copy_kern_src = COPY $@
cmd_copy_kern_src = sed -f $(srctree)/arch/powerpc/boot/fixup-headers.sed $< > $@
$(addprefix $(obj)/,$(zlib-y)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_kern_src)
$(addprefix $(obj)/,$(zlibheader-y)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_kern_src)
$(addprefix $(obj)/,$(zliblinuxheader-y)): $(obj)/%: $(srctree)/include/linux/%
$(call cmd,copy_kern_src)
$(addprefix $(obj)/,$(zlib-decomp-y)): $(obj)/%: $(srctree)/lib/%
$(call cmd,copy_kern_src)
quiet_cmd_copy_libfdt = COPY $@
cmd_copy_libfdt = cp $< $@
$(addprefix $(obj)/,$(libfdt) $(libfdtheader)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
$(call cmd,copy_libfdt)
$(obj)/empty.c:
$(Q)touch $@
$(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds : $(obj)/%: $(srctree)/$(src)/%.S
$(Q)cp $< $@
$(obj)/serial.c: $(obj)/autoconf.h
$(obj)/autoconf.h: $(obj)/%: $(objtree)/include/generated/%
$(Q)cp $< $@
clean-files := $(zlib-) $(zlibheader-) $(zliblinuxheader-) \
$(zlib-decomp-) $(libfdt) $(libfdtheader) \
autoconf.h empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
quiet_cmd_bootcc = BOOTCC $@
cmd_bootcc = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
quiet_cmd_bootas = BOOTAS $@
cmd_bootas = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
quiet_cmd_bootar = BOOTAR $@
cmd_bootar = $(BOOTAR) $(BOOTARFLAGS) $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
$(obj-libfdt): $(obj)/%.o: $(srctree)/scripts/dtc/libfdt/%.c FORCE
$(call if_changed_dep,bootcc)
$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootcc)
$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootas)
$(obj)/wrapper.a: $(obj-wlib) FORCE
$(call if_changed,bootar)
hostprogs-y := addnote hack-coff mktree
targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
dtstree := $(srctree)/$(src)/dts
wrapper :=$(srctree)/$(src)/wrapper
wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \
$(wrapper) FORCE
#############
# Bits for building various flavours of zImage
ifneq ($(CROSS32_COMPILE),)
CROSSWRAP := -C "$(CROSS32_COMPILE)"
else
ifneq ($(CROSS_COMPILE),)
CROSSWRAP := -C "$(CROSS_COMPILE)"
endif
endif
compressor-$(CONFIG_KERNEL_GZIP) := gz
compressor-$(CONFIG_KERNEL_XZ) := xz
# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
quiet_cmd_wrap = WRAP $@
cmd_wrap =$(CONFIG_SHELL) $(wrapper) -Z $(compressor-y) -c -o $@ -p $2 \
$(CROSSWRAP) $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) \
vmlinux
image-$(CONFIG_PPC_PSERIES) += zImage.pseries
image-$(CONFIG_PPC_POWERNV) += zImage.pseries
image-$(CONFIG_PPC_MAPLE) += zImage.maple
image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
image-$(CONFIG_PPC_PS3) += dtbImage.ps3
image-$(CONFIG_PPC_CHRP) += zImage.chrp
image-$(CONFIG_PPC_EFIKA) += zImage.chrp
image-$(CONFIG_PPC_PMAC) += zImage.pmac
image-$(CONFIG_PPC_HOLLY) += dtbImage.holly
image-$(CONFIG_DEFAULT_UIMAGE) += uImage
image-$(CONFIG_EPAPR_BOOT) += zImage.epapr
#
# Targets which embed a device tree blob
#
# Theses are default targets to build images which embed device tree blobs.
# They are only required on boards which do not have FDT support in firmware.
# Boards with newish u-boot firmware can use the uImage target above
#
# Board ports in arch/powerpc/platform/40x/Kconfig
image-$(CONFIG_EP405) += dtbImage.ep405
image-$(CONFIG_HOTFOOT) += cuImage.hotfoot
image-$(CONFIG_WALNUT) += treeImage.walnut
image-$(CONFIG_ACADIA) += cuImage.acadia
image-$(CONFIG_OBS600) += uImage.obs600
# Board ports in arch/powerpc/platform/44x/Kconfig
image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
image-$(CONFIG_SAM440EP) += cuImage.sam440ep
image-$(CONFIG_SEQUOIA) += cuImage.sequoia
image-$(CONFIG_RAINIER) += cuImage.rainier
image-$(CONFIG_TAISHAN) += cuImage.taishan
image-$(CONFIG_KATMAI) += cuImage.katmai
image-$(CONFIG_WARP) += cuImage.warp
image-$(CONFIG_YOSEMITE) += cuImage.yosemite
image-$(CONFIG_ISS4xx) += treeImage.iss4xx \
treeImage.iss4xx-mpic
image-$(CONFIG_CURRITUCK) += treeImage.currituck
image-$(CONFIG_AKEBONO) += treeImage.akebono
# Board ports in arch/powerpc/platform/8xx/Kconfig
image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads
image-$(CONFIG_MPC885ADS) += cuImage.mpc885ads
image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc
image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \
dtbImage.adder875-redboot
# Board ports in arch/powerpc/platform/52xx/Kconfig
image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 lite5200.dtb
image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200b lite5200b.dtb
image-$(CONFIG_PPC_MEDIA5200) += cuImage.media5200 media5200.dtb
# Board ports in arch/powerpc/platform/82xx/Kconfig
image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads
image-$(CONFIG_PQ2FADS) += cuImage.pq2fads
image-$(CONFIG_EP8248E) += dtbImage.ep8248e
# Board ports in arch/powerpc/platform/83xx/Kconfig
image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds
image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb
image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \
cuImage.mpc8349emitxgp
image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds
image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds
image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot
# Board ports in arch/powerpc/platform/85xx/Kconfig
image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads
image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \
cuImage.mpc8548cds_32b \
cuImage.mpc8555cds
image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds
image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \
cuImage.mpc8572ds
image-$(CONFIG_TQM8540) += cuImage.tqm8540
image-$(CONFIG_TQM8541) += cuImage.tqm8541
image-$(CONFIG_TQM8548) += cuImage.tqm8548
image-$(CONFIG_TQM8555) += cuImage.tqm8555
image-$(CONFIG_TQM8560) += cuImage.tqm8560
image-$(CONFIG_SBC8548) += cuImage.sbc8548
image-$(CONFIG_KSI8560) += cuImage.ksi8560
# Board ports in arch/powerpc/platform/86xx/Kconfig
image-$(CONFIG_MVME7100) += dtbImage.mvme7100
# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
image-$(CONFIG_GAMECUBE) += dtbImage.gamecube
image-$(CONFIG_WII) += dtbImage.wii
image-$(CONFIG_MVME5100) += dtbImage.mvme5100
# Board port in arch/powerpc/platform/amigaone/Kconfig
image-$(CONFIG_AMIGAONE) += cuImage.amigaone
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
ifdef CONFIG_PPC32
image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
endif
# Allow extra targets to be added to the defconfig
image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS))
initrd- := $(patsubst zImage%, zImage.initrd%, $(image-))
initrd-y := $(patsubst zImage%, zImage.initrd%, \
$(patsubst dtbImage%, dtbImage.initrd%, \
$(patsubst simpleImage%, simpleImage.initrd%, \
$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
initrd-y := $(filter-out $(image-y), $(initrd-y))
targets += $(image-y) $(initrd-y)
$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
# Don't put the ramdisk on the pattern rule; when its missing make will try
# the pattern rule with less dependencies that also matches (even with the
# hard dependency listed).
$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) FORCE
$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
$(addprefix $(obj)/, $(sort $(filter zImage.%, $(image-y)))): vmlinux $(wrapperbits) FORCE
$(call if_changed,wrap,$(subst $(obj)/zImage.,,$@))
# dtbImage% - a dtbImage is a zImage with an embedded device tree blob
$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb FORCE
$(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb FORCE
$(call if_changed,wrap,$*,,$(obj)/$*.dtb)
# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
# prefix
$(obj)/vmlinux.strip: vmlinux
$(STRIP) -s -R .comment $< -o $@
$(obj)/uImage: vmlinux $(wrapperbits) FORCE
$(call if_changed,wrap,uboot)
$(obj)/uImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,uboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/uImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,uboot-$*,,$(obj)/$*.dtb)
$(obj)/cuImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb)
$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb)
$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)
# Rule to build device tree blobs
$(obj)/%.dtb: $(src)/dts/%.dts FORCE
$(call if_changed_dep,dtc)
$(obj)/%.dtb: $(src)/dts/fsl/%.dts FORCE
$(call if_changed_dep,dtc)
# If there isn't a platform selected then just strip the vmlinux.
ifeq (,$(image-y))
image-y := vmlinux.strip
endif
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
$(Q)rm -f $@; ln $< $@
$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
$(Q)rm -f $@; ln $< $@
# Only install the vmlinux
install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)"
# Install the vmlinux and other built boot targets.
zInstall: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $^
# anything not in $(targets)
clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
zImage.miboot zImage.pmac zImage.pseries \
zImage.maple simpleImage.* otheros.bld
# clean up files cached by wrapper
clean-kernel-base := vmlinux.strip vmlinux.bin
clean-kernel := $(addsuffix .gz,$(clean-kernel-base))
clean-kernel += $(addsuffix .xz,$(clean-kernel-base))
# If not absolute clean-files are relative to $(obj).
clean-files += $(addprefix $(objtree)/, $(clean-kernel))
WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
WRAPPER_BINDIR := /usr/sbin
INSTALL := install
extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
dts-installed := $(patsubst $(dtstree)/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(dtstree)/*.dts))
all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_mkdir = mkdir -p $@
quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
-e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
$(call cmd,mkdir)
$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
$(call cmd,install)
$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_exe)
$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
$(call cmd,install_dts)
$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_wrapper)
$(obj)/bootwrapper_install: $(all-installed)
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