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Date: Tue, 29 Nov 2016 05:24:53 -0800
From: tip-bot for Josh Poimboeuf <tipbot@zytor.com>
Message-ID: <tip-53938ee427bf27525a63721b7e25d86b8f31f161@git.kernel.org>
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In-Reply-To: <20161128230635.4n2ofgawltgexgcg@treble>
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To: linux-tip-commits@vger.kernel.org
Subject: [tip:x86/asm] scripts/decode_stacktrace.sh: Fix address line
 detection on x86
Git-Commit-ID: 53938ee427bf27525a63721b7e25d86b8f31f161
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Commit-ID:  53938ee427bf27525a63721b7e25d86b8f31f161
Gitweb:     http://git.kernel.org/tip/53938ee427bf27525a63721b7e25d86b8f31f161
Author:     Josh Poimboeuf <jpoimboe@redhat.com>
AuthorDate: Mon, 28 Nov 2016 17:06:35 -0600
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 29 Nov 2016 14:19:50 +0100

scripts/decode_stacktrace.sh: Fix address line detection on x86

Kirill reported that the decode_stacktrace.sh script was broken by the
following commit:

  bb5e5ce545f2 ("x86/dumpstack: Remove kernel text addresses from stack dump")

Fix it by updating the per-line absolute address check to also check for
function-based address lines like the following:

  write_sysrq_trigger+0x51/0x60

I didn't remove the check for absolute addresses because it's still
needed for ARM.

Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sasha Levin <alexander.levin@verizon.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: bb5e5ce545f2 ("x86/dumpstack: Remove kernel text addresses from stack dump")
Link: http://lkml.kernel.org/r/20161128230635.4n2ofgawltgexgcg@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 scripts/decode_stacktrace.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index c332684..5206d99 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -139,7 +139,8 @@ handle_line() {
 
 while read line; do
 	# Let's see if we have an address in the line
-	if [[ $line =~ \[\<([^]]+)\>\]  ]]; then
+	if [[ $line =~ \[\<([^]]+)\>\] ]] ||
+	   [[ $line =~ [^+\ ]+\+0x[0-9a-f]+/0x[0-9a-f]+ ]]; then
 		# Translate address to line numbers
 		handle_line "$line"
 	# Is it a code line?