From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6961E12D758; Sun, 10 Nov 2024 17:05:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731258354; cv=none; b=sv6vhVfGad3OqXaDkd3snDD7MUGRtdoP52c80kmdOXVMMnPnFZHZGlNxa8J4J/GHjvydLYQitAn9gIL5iIvO7K0wL2bhJDNyoC/zymRCRxSFJCvhZ34ZwYtwdCyTc5bw5WRmrafag/Jz9rX0NCmrNKegwbYCpVjzkatfTBtL25M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731258354; c=relaxed/simple; bh=W8IBu8OYgKSWbGvUJPVuafrSAwC9pJZTPDqexPgiF44=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QqoUxeL5ckejZN90gbqO2tqs9vnZe60+fnJp8NHrhRB9pDu0A1qyjjozDVzO4SHDkozxXqtx+AAKbUoSXIWn132L8ztd+gPhABr846TEnG6tgBe+mEBQMm2lSmf5/B0YSRJB1wcZTNQ0Dwqu7NrBG8oiZQY/Bfr1xQ1VLwtf5Zg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=sCcq2szq; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="sCcq2szq" Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4AAFQGiX031518; Sun, 10 Nov 2024 17:05:15 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=pp1; bh=w9UgQPRR37++TdBcs9cU8wlUS7kfeK sLzG25KHuCYbk=; b=sCcq2szqvl7V388Evf81ubigfPzqtOJNzlcNBvsY99W98O gOjAjQ29ZmdSGDI6S9qyQZ9bZqHgxtcI44Gep0IQAfrWTQKZ1l20GgScmV1xioDq J97YpP+g0v+w1QEFcJv1ASn0FWoR+LjCYLHwKbp/ibrT1184HD0bEvHz17F1S77c PRV6HKiBhswtOm1HCxb7bf+ibJgCo64e6uukqrOyKFMwfqjfZ2Xb5++jbrQQd8Ia 5h0Z/vR4Pfn1M+Nh/zCcXfu/bK8OoDbrfyhc+SeUWPUOA32EU0acocfOAWkxT0uU HaNWufxPDin76lDfr0J+olmOOzAM4HNy9U4F9BRA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 42tpvmsd22-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 10 Nov 2024 17:05:15 +0000 (GMT) Received: from m0353729.ppops.net (m0353729.ppops.net [127.0.0.1]) by pps.reinject (8.18.0.8/8.18.0.8) with ESMTP id 4AAH5EnY016863; Sun, 10 Nov 2024 17:05:14 GMT Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 42tpvmsd1x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 10 Nov 2024 17:05:14 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 4AAFVWrx029688; Sun, 10 Nov 2024 17:05:13 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 42tkjk5udm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 10 Nov 2024 17:05:13 +0000 Received: from smtpav04.fra02v.mail.ibm.com (smtpav04.fra02v.mail.ibm.com [10.20.54.103]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 4AAH59Sc58851720 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 10 Nov 2024 17:05:09 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 780B020043; Sun, 10 Nov 2024 17:05:09 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 30DAD20040; Sun, 10 Nov 2024 17:05:08 +0000 (GMT) Received: from osiris (unknown [9.171.74.231]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTPS; Sun, 10 Nov 2024 17:05:08 +0000 (GMT) Date: Sun, 10 Nov 2024 18:05:04 +0100 From: Heiko Carstens To: "Masami Hiramatsu (Google)" Cc: Alexei Starovoitov , Steven Rostedt , Florent Revest , linux-trace-kernel@vger.kernel.org, LKML , Martin KaFai Lau , bpf , Alexei Starovoitov , Jiri Olsa , Alan Maguire , Mark Rutland , linux-arch@vger.kernel.org, Will Deacon , Catalin Marinas , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Madhavan Srinivasan , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Subject: Re: [PATCH v19 07/19] tracing: Add ftrace_fill_perf_regs() for perf event Message-ID: <20241110170504.6661-B-hca@linux.ibm.com> References: <173125372214.172790.6929368952404083802.stgit@devnote2> <173125380933.172790.13871919598133716103.stgit@devnote2> Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <173125380933.172790.13871919598133716103.stgit@devnote2> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: mDl8ANvFO62Yl3Du7gW-GA6W-IDMkZTL X-Proofpoint-GUID: VTiNSnrSFul-aTZQ_oPMYdMgRFJUlpu0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=681 phishscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 suspectscore=0 adultscore=0 spamscore=0 mlxscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411100151 On Mon, Nov 11, 2024 at 12:50:09AM +0900, Masami Hiramatsu (Google) wrote: > From: Masami Hiramatsu (Google) > > Add ftrace_fill_perf_regs() which should be compatible with the > perf_fetch_caller_regs(). In other words, the pt_regs returned from the > ftrace_fill_perf_regs() must satisfy 'user_mode(regs) == false' and can be > used for stack tracing. > > Signed-off-by: Masami Hiramatsu (Google) > Acked-by: Will Deacon > --- > arch/arm64/include/asm/ftrace.h | 7 +++++++ > arch/powerpc/include/asm/ftrace.h | 7 +++++++ > arch/s390/include/asm/ftrace.h | 6 ++++++ Acked-by: Heiko Carstens # s390