From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756270Ab3AYM0O (ORCPT ); Fri, 25 Jan 2013 07:26:14 -0500 Received: from terminus.zytor.com ([198.137.202.10]:42614 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754841Ab3AYM0K (ORCPT ); Fri, 25 Jan 2013 07:26:10 -0500 Date: Fri, 25 Jan 2013 04:25:55 -0800 From: tip-bot for Stephane Eranian Message-ID: Cc: linux-kernel@vger.kernel.org, eranian@google.com, hpa@zytor.com, mingo@kernel.org, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, eranian@google.com, linux-kernel@vger.kernel.org, tglx@linutronix.de In-Reply-To: <1359040242-8269-16-git-send-email-eranian@google.com> References: <1359040242-8269-16-git-send-email-eranian@google.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/x86] perf: Add PERF_RECORD_MISC_MMAP_DATA to RECORD_MMAP Git-Commit-ID: 59e1a00ac0e4d33ffc46814a3509b5cc2c94c56f X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (terminus.zytor.com [127.0.0.1]); Fri, 25 Jan 2013 04:26:00 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 59e1a00ac0e4d33ffc46814a3509b5cc2c94c56f Gitweb: http://git.kernel.org/tip/59e1a00ac0e4d33ffc46814a3509b5cc2c94c56f Author: Stephane Eranian AuthorDate: Thu, 24 Jan 2013 16:10:39 +0100 Committer: Ingo Molnar CommitDate: Fri, 25 Jan 2013 10:19:05 +0100 perf: Add PERF_RECORD_MISC_MMAP_DATA to RECORD_MMAP Type of mapping was lost and made it hard for a tool to distinguish code vs. data mmaps. Perf has the ability to distinguish the two. Use a bit in the header->misc bitmask to keep track of the mmap type. If PERF_RECORD_MISC_MMAP_DATA is set then the mapping is not executable (!VM_EXEC). If not set, then the mapping is executable. Signed-off-by: Stephane Eranian Cc: peterz@infradead.org Cc: ak@linux.intel.com Cc: acme@redhat.com Cc: jolsa@redhat.com Cc: namhyung.kim@lge.com Link: http://lkml.kernel.org/r/1359040242-8269-16-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar --- include/uapi/linux/perf_event.h | 1 + kernel/events/core.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 0c46659..62e9f25 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -445,6 +445,7 @@ struct perf_event_mmap_page { #define PERF_RECORD_MISC_GUEST_KERNEL (4 << 0) #define PERF_RECORD_MISC_GUEST_USER (5 << 0) +#define PERF_RECORD_MISC_MMAP_DATA (1 << 13) /* * Indicates that the content of PERF_SAMPLE_IP points to * the actual instruction that triggered the event. See also diff --git a/kernel/events/core.c b/kernel/events/core.c index 4661009..dd1c130 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -4764,6 +4764,9 @@ got_name: mmap_event->file_name = name; mmap_event->file_size = size; + if (!(vma->vm_flags & VM_EXEC)) + mmap_event->event_id.header.misc |= PERF_RECORD_MISC_MMAP_DATA; + mmap_event->event_id.header.size = sizeof(mmap_event->event_id) + size; rcu_read_lock();