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build: skip rebuild of kernel images if the source did not change

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 48145
This commit is contained in:
Felix Fietkau
2016-01-06 18:38:49 +00:00
parent 947eac1803
commit 4ab26a52ef
2 changed files with 15 additions and 15 deletions
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14
include/image.mk
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@@ -357,7 +357,7 @@ endef
define Build/kernel-bin
rm -f $@
cp $^ $@
cp $< $@
endef
define Build/patch-cmdline
@@ -444,6 +444,7 @@ define Device/Init
KERNEL_INITRAMFS_NAME = $$(KERNEL_NAME)-initramfs
KERNEL_INSTALL :=
KERNEL_NAME := vmlinux
KERNEL_DEPENDS :=
KERNEL_SIZE :=
FILESYSTEMS := $(TARGET_FILESYSTEMS)
@@ -468,11 +469,11 @@ define Device/Build/initramfs
$(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
$$(_TARGET): $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
$(KDIR)/$$(KERNEL_INITRAMFS_NAME): image_prepare
$(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
$(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
cp $$^ $$@
$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME)
$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
@rm -f $$@
$$(call concat_cmd,$$(KERNEL_INITRAMFS))
endef
@@ -495,7 +496,7 @@ endef
define Device/Build/kernel
_KERNEL_IMAGES += $(KDIR)/$$(KERNEL_NAME)
$(KDIR)/$$(KERNEL_NAME): image_prepare
$(KDIR)/$$(KERNEL_NAME):: image_prepare
$$(_TARGET): $$(if $$(KERNEL_INSTALL),$(BIN_DIR)/$$(KERNEL_IMAGE))
$(call Device/Export,$(KDIR)/$$(KERNEL_IMAGE),$(1))
$(BIN_DIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_IMAGE)
@@ -504,7 +505,7 @@ define Device/Build/kernel
ifdef CONFIG_IB
install: $(KDIR)/$$(KERNEL_IMAGE)
endif
$(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME)
$(KDIR)/$$(KERNEL_IMAGE): $(KDIR)/$$(KERNEL_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS)
@rm -f $$@
$$(call concat_cmd,$$(KERNEL))
$$(if $$(KERNEL_SIZE),$$(call Device/Build/check_size,$$(KERNEL_SIZE)))
@@ -581,9 +582,6 @@ define BuildImage
$(foreach device,$(TARGET_DEVICES),$(call Device,$(device)))
$(foreach fs,$(TARGET_FILESYSTEMS) $(fs-subtypes-y),$(call BuildImage/mkfs,$(fs)))
$$(sort $$(_KERNEL_IMAGES)):
@touch $$@
install: kernel_prepare
$(foreach fs,$(TARGET_FILESYSTEMS),
$(call Image/Build,$(fs))