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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2013-06-07 15:21:43 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-08-01 17:38:41 +0200 |
| commit | ae86a3c5331f47c4a5093a5ea8f7e53408a6ea98 (patch) | |
| tree | 909e34e98e0b1fdaeba977ca707617da6cc3cfd2 /linux | |
| parent | 0e45583106bb7dcbf7b28624432899bee69f71cf (diff) | |
| download | buildroot-ae86a3c5331f47c4a5093a5ea8f7e53408a6ea98.tar.gz buildroot-ae86a3c5331f47c4a5093a5ea8f7e53408a6ea98.zip | |
linux: Fix uImage with appended DTs generation
Fixes bug #5516 - appended device tree blobs on uImage fails
Before version 3.7 of the kernel, building the zImage and then the
uImage will rewrite the zImage in the process, removing the device tree
we just appended.
Use mkimage to append the device tree to the uImage and rebuild the
headers directly.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/linux.mk | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/linux/linux.mk b/linux/linux.mk index 17e9838692..780d6d5e61 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -106,12 +106,6 @@ ifneq ($(LINUX_KERNEL_UIMAGE_LOADADDR),) LINUX_MAKE_FLAGS+=LOADADDR="$(LINUX_KERNEL_UIMAGE_LOADADDR)" endif -ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y) -LINUX_IMAGE_TARGET=zImage -else -LINUX_IMAGE_TARGET=$(LINUX_IMAGE_NAME) -endif - # Compute the arch path, since i386 and x86_64 are in arch/x86 and not # in arch/$(KERNEL_ARCH). Even if the kernel creates symbolic links # for bzImage, arch/i386 and arch/x86_64 do not exist when copying the @@ -226,9 +220,16 @@ define LINUX_APPEND_DTB fi >> $(KERNEL_ARCH_PATH)/boot/zImage endef ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y) -# We need to generate the uImage here after that so that the uImage is -# generated with the right image size. -LINUX_APPEND_DTB += $(sep)$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) uImage +# We need to generate a new u-boot image that takes into +# account the extra-size added by the device tree at the end +# of the image. To do so, we first need to retrieve both load +# address and entry point for the kernel from the already +# generate uboot image before using mkimage -l. +LINUX_APPEND_DTB += $(sep) MKIMAGE_ARGS=`$(HOST_DIR)/usr/bin/mkimage -l $(LINUX_IMAGE_PATH) |\ + sed -n -e 's/Image Name:[ ]*\(.*\)/-n \1/p' -e 's/Load Address:/-a/p' -e 's/Entry Point:/-e/p'`; \ + $(HOST_DIR)/usr/bin/mkimage -A $(KERNEL_ARCH) -O linux \ + -T kernel -C none $${MKIMAGE_ARGS} \ + -d $(KERNEL_ARCH_PATH)/boot/zImage $(LINUX_IMAGE_PATH); endif endif @@ -237,7 +238,7 @@ endif define LINUX_BUILD_CMDS $(if $(BR2_LINUX_KERNEL_USE_CUSTOM_DTS), cp $(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH) $(KERNEL_ARCH_PATH)/boot/dts/) - $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_TARGET) + $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME) @if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \ $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ; \ fi |
