From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751781AbaLOOvC (ORCPT ); Mon, 15 Dec 2014 09:51:02 -0500 Received: from e23smtp08.au.ibm.com ([202.81.31.141]:35397 "EHLO e23smtp08.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750712AbaLOOu6 (ORCPT ); Mon, 15 Dec 2014 09:50:58 -0500 From: "Naveen N. Rao" To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, acme@kernel.org, mpe@ellerman.id.au Cc: ananth@in.ibm.com Subject: [PATCHv2 0/8] Fix perf probe issues on powerpc Date: Mon, 15 Dec 2014 20:20:30 +0530 Message-Id: X-Mailer: git-send-email 2.1.3 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14121514-0029-0000-0000-000000D1CF34 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset fixes various issues with perf probe on powerpc across ABIv1 and ABIv2: - in the presence of DWARF debug-info, - in the absence of DWARF, but with the symbol table, and - in the absence of debug-info, but with kallsyms. Applies cleanly on -tip. Tested on ppc64 BE and LE. Changes from previous version: Addressed various review comments from Mike Ellerman largely to generalize changes. Some of the simpler patches have been retained in their previous form to limit code churn, while others have been generalized by introducing arch helpers. Individual patches have more details. - Naveen Naveen N. Rao (8): kprobes: Fix kallsyms lookup across powerpc ABIv1 and ABIv2 perf probe: Improve detection of file/function name in the probe pattern perf probe powerpc: Fix symbol fixup issues due to ELF type perf probe powerpc: Handle powerpc dot symbols perf probe powerpc: Allow matching against dot symbols perf tools powerpc: Fix PPC64 ELF ABIv2 symbol decoding perf probe powerpc: Use DWARF info only if necessary perf probe powerpc: Fixup function entry if using kallsyms lookup arch/powerpc/include/asm/kprobes.h | 63 +++++++++++++++++++--------- tools/perf/arch/powerpc/Makefile | 1 + tools/perf/arch/powerpc/util/sym-handling.c | 64 +++++++++++++++++++++++++++++ tools/perf/config/Makefile | 2 + tools/perf/util/probe-event.c | 48 ++++++++++++++++++---- tools/perf/util/probe-event.h | 21 ++++++++++ tools/perf/util/symbol-elf.c | 5 ++- tools/perf/util/symbol.c | 6 +++ tools/perf/util/symbol.h | 6 +++ 9 files changed, 188 insertions(+), 28 deletions(-) create mode 100644 tools/perf/arch/powerpc/util/sym-handling.c -- 2.1.3