From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:57752 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967455AbdAFMiN (ORCPT ); Fri, 6 Jan 2017 07:38:13 -0500 Subject: Patch "perf annotate: Don't throw error for zero length symbols" has been added to the 4.9-stable tree To: ravi.bangoria@linux.vnet.ibm.com, acme@redhat.com, alexander.shishkin@linux.intel.com, anton@samba.org, benh@kernel.crashing.org, chris.ryder@arm.com, gregkh@linuxfoundation.org, mhiramat@kernel.org, mpe@ellerman.id.au, npiggin@gmail.com, paulus@samba.org, peterz@infradead.org Cc: , From: Date: Fri, 06 Jan 2017 13:37:03 +0100 Message-ID: <148370622326104@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled perf annotate: Don't throw error for zero length symbols to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: perf-annotate-don-t-throw-error-for-zero-length-symbols.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From edee44be59190bf22d5c6e521f3852b7ff16862f Mon Sep 17 00:00:00 2001 From: Ravi Bangoria Date: Tue, 22 Nov 2016 14:10:50 +0530 Subject: perf annotate: Don't throw error for zero length symbols From: Ravi Bangoria commit edee44be59190bf22d5c6e521f3852b7ff16862f upstream. 'perf report --tui' exits with error when it finds a sample of zero length symbol (i.e. addr == sym->start == sym->end). Actually these are valid samples. Don't exit TUI and show report with such symbols. Reported-and-Tested-by: Anton Blanchard Link: https://lkml.org/lkml/2016/10/8/189 Signed-off-by: Ravi Bangoria Cc: Alexander Shishkin Cc: Benjamin Herrenschmidt Cc: Chris Riyder Cc: linuxppc-dev@lists.ozlabs.org Cc: Masami Hiramatsu Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1479804050-5028-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/annotate.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -593,7 +593,8 @@ static int __symbol__inc_addr_samples(st pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); - if (addr < sym->start || addr >= sym->end) { + if ((addr < sym->start || addr >= sym->end) && + (addr != sym->end || sym->start != sym->end)) { pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, __LINE__, sym->name, sym->start, addr, sym->end); return -ERANGE; Patches currently in stable-queue which might be from ravi.bangoria@linux.vnet.ibm.com are queue-4.9/perf-annotate-don-t-throw-error-for-zero-length-symbols.patch