Commit 2a95e37c authored Aug 15, 2012 by Borislav Petkov Committed by Linus Torvalds Aug 16, 2012

scripts/decodecode: Fixup trapping instruction marker



When dumping "Code: " sections from an oops, the trapping instruction
%rip points to can be a string copy

  2b:*  f3 a5                   rep movsl %ds:(%rsi),%es:(%rdi)

and the line contain a bunch of ":".  Current "cut" selects only the and
the second field output looks funnily overlaid this:

  2b:*  f3 a5                   rep movsl %ds     <-- trapping instruction:(%rsi),%es:(%rdi

Fix this by selecting the remaining fields too.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 2b014fcc

scripts/decodecode

+1 −1

Original line number	Diff line number	Diff line
		@@ -89,7 +89,7 @@ echo $code >> $T.s
		disas $T
		cat $T.dis >> $T.aa

		faultline=`cat $T.dis \| head -1 \| cut -d":" -f2`
		faultline=`cat $T.dis \| head -1 \| cut -d":" -f2-`
		faultline=`echo "$faultline" \| sed -e 's/\[/\\\[/g; s/\]/\\\]/g'`

		cat $T.oo \| sed -e "s/$$faultline$/\*\1 <-- trapping instruction/g"

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