From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754949Ab3LPQtr (ORCPT ); Mon, 16 Dec 2013 11:49:47 -0500 Received: from mail-ea0-f177.google.com ([209.85.215.177]:65535 "EHLO mail-ea0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754889Ab3LPQtm (ORCPT ); Mon, 16 Dec 2013 11:49:42 -0500 From: jean.pihet@linaro.org To: linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, Arnaldo , Will Deacon Cc: patches@linaro.org, Jiri Olsa , Ingo Molnar , Jean Pihet Subject: [PATCH 0/3] ARM64: add perf support Date: Mon, 16 Dec 2013 17:49:19 +0100 Message-Id: <52af2f21.41590e0a.0251.ffffd94c@mx.google.com> X-Mailer: git-send-email 1.7.11.7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jean Pihet Add perf support for the AARCH64 architecture. This includes the support for: - AARCH64 perf registers definition and hooks, - compat mode registers use, i.e. profiling a 32-bit binary on a 64-bit system, - unwinding using the dwarf information from the .debug_frame section of the ELF binary; only in 64-bit mode, - unwinding using the frame pointer information; in 64-bit and compat modes. ToDo: - add support for unwinding using the dwarf information in compat mode. This requires some changes to the libunwind code. Tested on ARMv7 and ARMv8 platforms. The compat mode has been tested on ARMv8 using statically built 32-bit binaries. Jean Pihet (3): ARM64: perf: add support for perf registers API ARM64: perf: wire up perf_regs and unwind support ARM64: perf: add support for frame pointer unwinding in compat mode arch/arm64/Kconfig | 2 + arch/arm64/include/asm/ptrace.h | 1 + arch/arm64/include/uapi/asm/Kbuild | 1 + arch/arm64/include/uapi/asm/perf_regs.h | 40 ++++++++++++++ arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/perf_event.c | 75 +++++++++++++++++++++++--- arch/arm64/kernel/perf_regs.c | 46 ++++++++++++++++ tools/perf/arch/arm64/Makefile | 7 +++ tools/perf/arch/arm64/include/perf_regs.h | 88 +++++++++++++++++++++++++++++++ tools/perf/arch/arm64/util/dwarf-regs.c | 81 ++++++++++++++++++++++++++++ tools/perf/arch/arm64/util/unwind.c | 82 ++++++++++++++++++++++++++++ tools/perf/config/Makefile | 8 ++- 12 files changed, 423 insertions(+), 9 deletions(-) create mode 100644 arch/arm64/include/uapi/asm/perf_regs.h create mode 100644 arch/arm64/kernel/perf_regs.c create mode 100644 tools/perf/arch/arm64/Makefile create mode 100644 tools/perf/arch/arm64/include/perf_regs.h create mode 100644 tools/perf/arch/arm64/util/dwarf-regs.c create mode 100644 tools/perf/arch/arm64/util/unwind.c -- 1.7.11.7