immortalwrt/include/kernel-version.mk

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# Use the default kernel version if the Makefile doesn't override it
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LINUX_RELEASE?=1
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ifdef CONFIG_TESTING_KERNEL
KERNEL_PATCHVER:=$(KERNEL_TESTING_PATCHVER)
endif
LINUX_VERSION-4.9 = .264
LINUX_VERSION-4.14 = .228
LINUX_VERSION-4.19 = .184
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LINUX_KERNEL_HASH-4.9.264 = ecc62a94388b722d8bd924d9d021805f5fe180616c7d4c9bfee62766c46ec2b5
LINUX_KERNEL_HASH-4.14.228 = 15074d44ab330bba00518df1c86d3d2c304a34514d70958c0529a9d28d93815b
LINUX_KERNEL_HASH-4.19.184 = 3dfaf6aae242cb4165d2c0df3405558264f86c3b04f7bbef71b99c83a87ab77c
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remove_uri_prefix=$(subst git://,,$(subst http://,,$(subst https://,,$(1))))
sanitize_uri=$(call qstrip,$(subst @,_,$(subst :,_,$(subst .,_,$(subst -,_,$(subst /,_,$(1)))))))
ifneq ($(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
LINUX_VERSION:=$(call sanitize_uri,$(call remove_uri_prefix,$(CONFIG_KERNEL_GIT_CLONE_URI)))
ifeq ($(call qstrip,$(CONFIG_KERNEL_GIT_REF)),)
CONFIG_KERNEL_GIT_REF:=HEAD
endif
LINUX_VERSION:=$(LINUX_VERSION)-$(call sanitize_uri,$(CONFIG_KERNEL_GIT_REF))
else
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ifdef KERNEL_PATCHVER
LINUX_VERSION:=$(KERNEL_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_PATCHVER)))
endif
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ifdef KERNEL_TESTING_PATCHVER
LINUX_TESTING_VERSION:=$(KERNEL_TESTING_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_TESTING_PATCHVER)))
endif
endif
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split_version=$(subst ., ,$(1))
merge_version=$(subst $(space),.,$(1))
KERNEL_BASE=$(firstword $(subst -, ,$(LINUX_VERSION)))
KERNEL=$(call merge_version,$(wordlist 1,2,$(call split_version,$(KERNEL_BASE))))
KERNEL_PATCHVER ?= $(KERNEL)
# disable the md5sum check for unknown kernel versions
LINUX_KERNEL_HASH:=$(LINUX_KERNEL_HASH-$(strip $(LINUX_VERSION)))
LINUX_KERNEL_HASH?=x