From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752603AbbJMHJz (ORCPT ); Tue, 13 Oct 2015 03:09:55 -0400 Received: from mail-pa0-f54.google.com ([209.85.220.54]:33698 "EHLO mail-pa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752478AbbJMHJw (ORCPT ); Tue, 13 Oct 2015 03:09:52 -0400 From: Stephane Eranian To: linux-kernel@vger.kernel.org Cc: acme@redhat.com, peterz@infradead.org, mingo@elte.hu, ak@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, khandual@linux.vnet.ibm.com Subject: [PATCH 1/4] perf: add PERF_SAMPLE_BRANCH_CALL Date: Tue, 13 Oct 2015 09:09:08 +0200 Message-Id: <1444720151-10275-2-git-send-email-eranian@google.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1444720151-10275-1-git-send-email-eranian@google.com> References: <1444720151-10275-1-git-send-email-eranian@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new branch sample type to cover only call branches (function calls). The current ANY_CALL included direct, indirect calls and far jumps. We want to be able to differentiate indirect from direct calls. Therefore we introduce PERF_SAMPLE_BRANCH_CALL. The implementation is up to each architecture. Signed-off-by: Stephane Eranian --- include/uapi/linux/perf_event.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 2881145..e6c1b47 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -168,6 +168,7 @@ enum perf_branch_sample_type_shift { PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT = 11, /* call/ret stack */ PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT = 12, /* indirect jumps */ + PERF_SAMPLE_BRANCH_CALL_SHIFT = 13, /* direct call */ PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */ }; @@ -188,6 +189,7 @@ enum perf_branch_sample_type { PERF_SAMPLE_BRANCH_CALL_STACK = 1U << PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT, PERF_SAMPLE_BRANCH_IND_JUMP = 1U << PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT, + PERF_SAMPLE_BRANCH_CALL = 1U << PERF_SAMPLE_BRANCH_CALL_SHIFT, PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT, }; -- 1.9.1