From 9acb81d9af4cef2679f0475bd2b0f18963c795de Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 1 Jun 2011 18:08:17 +0000 Subject: kernel.mk: add a new helper for comparing kernel versions, which can take 1 - 4 field kernel versions implement CompareKernelPatchVer using this new helper implement kernel_patchver_{gt,ge,eq,le,lt}, which are more convenient for use with inline $(if) SVN-Revision: 27087 --- include/kernel.mk | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/include/kernel.mk b/include/kernel.mk index 5e8df444fb..e120cef1fa 100644 --- a/include/kernel.mk +++ b/include/kernel.mk @@ -161,11 +161,20 @@ define AutoLoad add_module "$(1)" "$(2)" "$(3)"; endef +version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0) +kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) )) + ifdef DUMP - CompareKernelPatchVer=0 + kernel_version_cmp= else - define CompareKernelPatchVer - $(shell [ $$(echo $(1) | tr . 0) -$(2) $$(echo $(3) | tr . 0) ] && echo 1 || echo 0) - endef + kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 ) endif +CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0) + +kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1)) +kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1)) +kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1)) +kernel_patchver_le=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1)) +kernel_patchver_lt=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1)) + -- cgit v1.2.3