Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752664Ab3F1SyC (ORCPT ); Fri, 28 Jun 2013 14:54:02 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:41604 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752201Ab3F1Sx7 (ORCPT ); Fri, 28 Jun 2013 14:53:59 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Jed Davis , Catalin Marinas , Kamal Mostafa Subject: [PATCH 062/105] perf: arm64: Record the user-mode PC in the call chain. Date: Fri, 28 Jun 2013 11:51:24 -0700 Message-Id: <1372445527-24414-63-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1372445527-24414-1-git-send-email-kamal@canonical.com> References: <1372445527-24414-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1375 Lines: 40 3.8.13.4 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Jed Davis With this change, we no longer lose the innermost entry in the user-mode part of the call chain. See also the x86 port, which includes the ip, and the corresponding change in arch/arm. Signed-off-by: Jed Davis Acked-by: Ingo Molnar Acked-by: Will Deacon Signed-off-by: Catalin Marinas [ kamal: backport to 3.8 (context) ] Signed-off-by: Kamal Mostafa --- arch/arm64/kernel/perf_event.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index f7073c7..0256b68 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -1331,6 +1331,7 @@ void perf_callchain_user(struct perf_callchain_entry *entry, { struct frame_tail __user *tail; + perf_callchain_store(entry, regs->pc); tail = (struct frame_tail __user *)regs->regs[29]; while (entry->nr < PERF_MAX_STACK_DEPTH && -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/