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| author | Felix Fietkau <nbd@openwrt.org> | 2016-01-06 18:38:49 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2016-01-06 18:38:49 +0000 |
| commit | 4ab26a52ef687a42a318d52440e27d0f5a8d6769 (patch) | |
| tree | 0c866ef9cc397678a56feabd83a1f80e0e72b729 /include/kernel-defaults.mk | |
| parent | 947eac1803d631224a9fa6378df3d3409e33be58 (diff) | |
| download | upstream-4ab26a52ef687a42a318d52440e27d0f5a8d6769.tar.gz upstream-4ab26a52ef687a42a318d52440e27d0f5a8d6769.tar.bz2 upstream-4ab26a52ef687a42a318d52440e27d0f5a8d6769.zip | |
build: skip rebuild of kernel images if the source did not change
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 48145
Diffstat (limited to 'include/kernel-defaults.mk')
| -rw-r--r-- | include/kernel-defaults.mk | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk index f3b5e421d1..052b2b3a7b 100644 --- a/include/kernel-defaults.mk +++ b/include/kernel-defaults.mk @@ -138,13 +138,15 @@ IMAGES_DIR:=../../x86/boot endif define Kernel/CopyImage - $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)$(1) - $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf - $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.debug - $(foreach k, \ - $(if $(KERNEL_IMAGES),$(KERNEL_IMAGES),$(filter-out dtbs,$(KERNELNAME))), \ - $(CP) $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1); \ - ) + cmp -s $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug || { \ + $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)$(1); \ + $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf; \ + $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug; \ + $(foreach k, \ + $(if $(KERNEL_IMAGES),$(KERNEL_IMAGES),$(filter-out dtbs,$(KERNELNAME))), \ + $(CP) $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1); \ + ) \ + } endef define Kernel/CompileImage/Default |