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path: root/tools/perf/util/PERF-VERSION-GEN
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#!/bin/sh

if [ $# -eq 1 ]  ; then
	OUTPUT=$1
fi

GVF=${OUTPUT}PERF-VERSION-FILE

LF='
'

#
# First check if there is a .git to get the version from git describe
# otherwise try to get the version from the kernel Makefile
#
CID=
TAG=
if test -d ../../.git -o -f ../../.git
then
	TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
	CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
elif test -f ../../PERF-VERSION-FILE
then
	TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
fi
if test -z "$TAG"
then
	TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
fi
VN="$TAG$CID"
if test -n "$CID"
then
	# format version string, strip trailing zero of sublevel:
	VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
fi

VN=$(expr "$VN" : v*'\(.*\)')

if test -r $GVF
then
	VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
else
	VC=unset
fi
test "$VN" = "$VC" || {
	echo >&2 "  PERF_VERSION = $VN"
	echo "#define PERF_VERSION \"$VN\"" >$GVF
}


NTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv6/Makefile')