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Diffstat (limited to 'pvr-source/eurasiacon/build/linux2/kernel_version.mk')
| -rw-r--r-- | pvr-source/eurasiacon/build/linux2/kernel_version.mk | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/pvr-source/eurasiacon/build/linux2/kernel_version.mk b/pvr-source/eurasiacon/build/linux2/kernel_version.mk new file mode 100644 index 0000000..35ecceb --- /dev/null +++ b/pvr-source/eurasiacon/build/linux2/kernel_version.mk @@ -0,0 +1,100 @@ +########################################################################### ### +#@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +#@License Dual MIT/GPLv2 +# +# The contents of this file are subject to the MIT license as set out below. +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# Alternatively, the contents of this file may be used under the terms of +# the GNU General Public License Version 2 ("GPL") in which case the provisions +# of GPL are applicable instead of those above. +# +# If you wish to allow use of your version of this file only under the terms of +# GPL, and not to allow others to use your version of this file under the terms +# of the MIT license, indicate your decision by deleting the provisions above +# and replace them with the notice and other provisions required by GPL as set +# out in the file called "GPL-COPYING" included in this distribution. If you do +# not delete the provisions above, a recipient may use your version of this file +# under the terms of either the MIT license or GPL. +# +# This License is also included in this distribution in the file called +# "MIT-COPYING". +# +# EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS +# PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING +# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +# PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR +# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +### ########################################################################### + +$(if $(KERNELDIR),,$(error KERNELDIR must be set to obtain a version)) + +override KERNEL_VERSION := \ + $(shell grep "^VERSION = " $(KERNELDIR)/Makefile | cut -f3 -d' ') +override KERNEL_PATCHLEVEL := \ + $(shell grep "^PATCHLEVEL = " $(KERNELDIR)/Makefile | cut -f3 -d' ') +override KERNEL_SUBLEVEL := \ + $(shell grep "^SUBLEVEL = " $(KERNELDIR)/Makefile | cut -f3 -d' ') +override KERNEL_EXTRAVERSION := \ + $(shell grep "^EXTRAVERSION = " $(KERNELDIR)/Makefile | cut -f3 -d' ') + +# Break the kernel version up into a space separated list +kernel_version_as_list := $(KERNEL_VERSION) \ + $(KERNEL_PATCHLEVEL) \ + $(KERNEL_SUBLEVEL) \ + $(patsubst .%,%,$(KERNEL_EXTRAVERSION)) + +# The base ID doesn't have to be accurate; we only use it for +# feature checks which will not care about extraversion bits +# +override KERNEL_BASE_ID := \ + $(KERNEL_VERSION).$(KERNEL_PATCHLEVEL).$(KERNEL_SUBLEVEL) + +# Try to get the kernel ID from the kernel.release file. +# +KERNEL_ID ?= \ + $(shell cat $(KERNELDIR)/include/config/kernel.release 2>/dev/null) + +# If the kernel ID isn't set yet, try to set it from the UTS_RELEASE +# macro. +# +ifeq ($(strip $(KERNEL_ID)),) +KERNEL_ID := \ + $(shell grep -h '\#define UTS_RELEASE' \ + $(KERNELDIR)/include/linux/* | cut -f3 -d' ' | sed s/\"//g) +endif + +ifeq ($(strip $(KERNEL_ID)),) +KERNEL_ID := \ + $(KERNEL_VERSION).$(KERNEL_PATCHLEVEL).$(KERNEL_SUBLEVEL)$(KERNEL_EXTRAVERSION) +endif + +# Return 1 if the kernel version is at least the value passed to the +# function, else return nothing. +# Examples +# $(call kernel-version-at-least,2,6,35) +# $(call kernel-version-at-least,2,6,35,7) +# +define kernel-version-at-least +$(shell set -- $(kernel_version_as_list) 0 0 0 0; \ + Y=true; \ + for D in $1 $2 $3 $4; \ + do \ + [ $$1 ] || break; \ + [ $$1 -eq $$D ] && { shift; continue; };\ + [ $$1 -lt $$D ] && Y=; \ + break; \ + done; \ + echo $$Y) +endef |