linux/arch/arm/boot/Makefile

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#
# arch/arm/boot/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995-2002 Russell King
#
OBJCOPYFLAGS :=-O binary -R .comment -S
ifneq ($(MACHINE),)
include $(MACHINE)/Makefile.boot
endif
# Note: the following conditions must always be true:
# ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
# PARAMS_PHYS must be within 4MB of ZRELADDR
# INITRD_PHYS must be in RAM
ZRELADDR := $(zreladdr-y)
PARAMS_PHYS := $(params_phys-y)
INITRD_PHYS := $(initrd_phys-y)
export ZRELADDR INITRD_PHYS PARAMS_PHYS
targets := Image zImage xipImage bootpImage uImage
ifeq ($(CONFIG_XIP_KERNEL),y)
$(obj)/xipImage: vmlinux FORCE
$(call if_changed,objcopy)
ARM: 8576/1: avoid duplicating "Kernel: arch/arm/boot/*Image is ready" Commit 3939f3345050 ("ARM: 8418/1: add boot image dependencies to not generate invalid images") fixed bad image generation for the parallel building, but as its side effect, Kbuild now descends into arch/arm/boot/ again and again, duplicating the log messages. It looks clumsy, so let's display the same message only once. This commit moves the log rules from arch/arm/boot/Makefile to arch/arm/Makefile. I did not delete them completely because *Image are the final targets that users are interested in. Without this commit, the log of incremental build is like follows: $ make ARCH=arm UIMAGE_LOADADDR=0x80208000 uImage CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CHK include/generated/bounds.h CHK include/generated/timeconst.h CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Image arch/arm/boot/uImage is ready With this commit, it will look like follows: $ make ARCH=arm UIMAGE_LOADADDR=0x80208000 uImage CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CHK include/generated/bounds.h CHK include/generated/timeconst.h CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Kernel: arch/arm/boot/uImage is ready Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-30 10:01:23 +08:00
@$(kecho) ' Physical Address of xipImage: $(CONFIG_XIP_PHYS_ADDR)'
$(obj)/Image $(obj)/zImage: FORCE
@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
@echo 'Only the xipImage target is available in this case'
@false
else
$(obj)/xipImage: FORCE
@echo 'Kernel not configured for XIP (CONFIG_XIP_KERNEL!=y)'
@false
$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
$(obj)/compressed/vmlinux: $(obj)/Image FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
endif
ifneq ($(LOADADDR),)
UIMAGE_LOADADDR=$(LOADADDR)
else
ifeq ($(CONFIG_ZBOOT_ROM),y)
UIMAGE_LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
else
UIMAGE_LOADADDR=$(ZRELADDR)
endif
endif
check_for_multiple_loadaddr = \
if [ $(words $(UIMAGE_LOADADDR)) -ne 1 ]; then \
echo 'multiple (or no) load addresses: $(UIMAGE_LOADADDR)'; \
echo 'This is incompatible with uImages'; \
echo 'Specify LOADADDR on the commandline to build an uImage'; \
false; \
fi
$(obj)/uImage: $(obj)/zImage FORCE
@$(check_for_multiple_loadaddr)
$(call if_changed,uimage)
$(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
$(Q)$(MAKE) $(build)=$(obj)/bootp $@
$(obj)/bootpImage: $(obj)/bootp/bootp FORCE
$(call if_changed,objcopy)
PHONY += initrd install zinstall uinstall
initrd:
@test "$(INITRD_PHYS)" != "" || \
(echo This machine does not support INITRD; exit -1)
@test "$(INITRD)" != "" || \
(echo You must specify INITRD; exit -1)
arm, kbuild: make "make install" not depend on vmlinux Install targets (install, zinstall, uinstall) on arm have a dependency to vmlinux. This may cause parts of the kernel to be rebuilt during installation. We must avoid this since this may run as root. Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus emphasized this in: http://lkml.org/lkml/2013/7/10/600 So on arm and maybe other archs we need the same as for x86: 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux This patch fixes this for arm. Dependencies are removed and instead a check to install.sh is added for the files that are needed. This issue was uncovered by this build error where the -j option is used in conjunction with install targets: $ make <makeflags> $ make <makeflags> zinstall ... DEPMOD Usage: .../scripts/depmod.sh /sbin/depmod <kernelrelease> (INSTALL_MOD_PATH and INSTALL_PATH variables set, so no root perms required in this case.) The problem is that zinstall on arm due to its dependency to vmlinux does a prepare/prepare3 and finally does a forced rewrite of kernel.release even if it exists already. Rebuilding kernel.release removes it first and then recreates it. This might race with another parallel make job running depmod. So this patch should fix this one too. Also quoting $(KERNELRELEASE) arg for install.sh as this messes argument order in case it is empty (which is the case if the kernel was not built yet). Signed-off-by: Robert Richter <robert.richter@linaro.org> Signed-off-by: Robert Richter <rric@kernel.org> Acked-by: Michal Marek <mmarek@suse.cz>. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-07-18 00:05:06 +08:00
install:
$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/Image System.map "$(INSTALL_PATH)"
arm, kbuild: make "make install" not depend on vmlinux Install targets (install, zinstall, uinstall) on arm have a dependency to vmlinux. This may cause parts of the kernel to be rebuilt during installation. We must avoid this since this may run as root. Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus emphasized this in: http://lkml.org/lkml/2013/7/10/600 So on arm and maybe other archs we need the same as for x86: 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux This patch fixes this for arm. Dependencies are removed and instead a check to install.sh is added for the files that are needed. This issue was uncovered by this build error where the -j option is used in conjunction with install targets: $ make <makeflags> $ make <makeflags> zinstall ... DEPMOD Usage: .../scripts/depmod.sh /sbin/depmod <kernelrelease> (INSTALL_MOD_PATH and INSTALL_PATH variables set, so no root perms required in this case.) The problem is that zinstall on arm due to its dependency to vmlinux does a prepare/prepare3 and finally does a forced rewrite of kernel.release even if it exists already. Rebuilding kernel.release removes it first and then recreates it. This might race with another parallel make job running depmod. So this patch should fix this one too. Also quoting $(KERNELRELEASE) arg for install.sh as this messes argument order in case it is empty (which is the case if the kernel was not built yet). Signed-off-by: Robert Richter <robert.richter@linaro.org> Signed-off-by: Robert Richter <rric@kernel.org> Acked-by: Michal Marek <mmarek@suse.cz>. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-07-18 00:05:06 +08:00
zinstall:
$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/zImage System.map "$(INSTALL_PATH)"
arm, kbuild: make "make install" not depend on vmlinux Install targets (install, zinstall, uinstall) on arm have a dependency to vmlinux. This may cause parts of the kernel to be rebuilt during installation. We must avoid this since this may run as root. Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus emphasized this in: http://lkml.org/lkml/2013/7/10/600 So on arm and maybe other archs we need the same as for x86: 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux This patch fixes this for arm. Dependencies are removed and instead a check to install.sh is added for the files that are needed. This issue was uncovered by this build error where the -j option is used in conjunction with install targets: $ make <makeflags> $ make <makeflags> zinstall ... DEPMOD Usage: .../scripts/depmod.sh /sbin/depmod <kernelrelease> (INSTALL_MOD_PATH and INSTALL_PATH variables set, so no root perms required in this case.) The problem is that zinstall on arm due to its dependency to vmlinux does a prepare/prepare3 and finally does a forced rewrite of kernel.release even if it exists already. Rebuilding kernel.release removes it first and then recreates it. This might race with another parallel make job running depmod. So this patch should fix this one too. Also quoting $(KERNELRELEASE) arg for install.sh as this messes argument order in case it is empty (which is the case if the kernel was not built yet). Signed-off-by: Robert Richter <robert.richter@linaro.org> Signed-off-by: Robert Richter <rric@kernel.org> Acked-by: Michal Marek <mmarek@suse.cz>. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-07-18 00:05:06 +08:00
uinstall:
$(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/uImage System.map "$(INSTALL_PATH)"
subdir- := bootp compressed dts