image: allow exactly KERNEL_SIZE sized kernels
[openwrt/openwrt.git] / include / kernel-version.mk
1 # Use the default kernel version if the Makefile doesn't override it
2
3 LINUX_RELEASE?=1
4
5 LINUX_VERSION-3.18 = .21
6 LINUX_VERSION-4.0 = .9
7 LINUX_VERSION-4.1 = .6
8
9 LINUX_KERNEL_MD5SUM-3.18.21 = e4248caaa4cef318c04657e971b37298
10 LINUX_KERNEL_MD5SUM-4.0.9 = 40fc5f6e2d718e539b45e6601c71985b
11 LINUX_KERNEL_MD5SUM-4.1.6 = 1dae0c808e34164cab3dfd57be88bd53
12
13 ifdef KERNEL_PATCHVER
14 LINUX_VERSION:=$(KERNEL_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_PATCHVER)))
15 endif
16
17 split_version=$(subst ., ,$(1))
18 merge_version=$(subst $(space),.,$(1))
19 KERNEL_BASE=$(firstword $(subst -, ,$(LINUX_VERSION)))
20 KERNEL=$(call merge_version,$(wordlist 1,2,$(call split_version,$(KERNEL_BASE))))
21 KERNEL_PATCHVER ?= $(KERNEL)
22
23 # disable the md5sum check for unknown kernel versions
24 LINUX_KERNEL_MD5SUM:=$(LINUX_KERNEL_MD5SUM-$(strip $(LINUX_VERSION)))
25 LINUX_KERNEL_MD5SUM?=x