From patchwork Wed Feb 9 02:17:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Leoshkevich X-Patchwork-Id: 12739543 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6528AC433FE for ; Wed, 9 Feb 2022 02:39:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234453AbiBICjc (ORCPT ); Tue, 8 Feb 2022 21:39:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244808AbiBICSL (ORCPT ); Tue, 8 Feb 2022 21:18:11 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 057C5C0613CC for ; Tue, 8 Feb 2022 18:18:10 -0800 (PST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 2191sDoL016628; Wed, 9 Feb 2022 02:17:58 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=ZPoBvtdrsyfk1phNJCGwmS9x97BaFXO/N7T0bDK9J64=; b=owR6wfhR6YMFvWRz/BTeYKyJed47RQVi8x+Rj1IsV+KHBLtLzBByUEUiW+qmIPkVB9uy wdJ/CCibxyntXK+cmurqhPvqcDY9XwLc7qBiO8VuYBSuowtrHbp9kviBVH/kBa/w3+lz TDfsqBJgRF10P7HtL2wdkrybcDpJ1g+1VpUM5RuZZcb17MwBsWWVlqq1oZ/XL1anFEyL cYu/U+KLUNiCVdh9qibRVkrjtmoRvBjAPpc3ur9tHpQdgJaEUMzZWqJarkJbaY20iubN jvJNsRcAvonQUCITclgEljWLoQKCQU9zJW14kr28Muo/tBBNd3GejZ2+qB3HPz31Mt7k vw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e44bygcn2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Feb 2022 02:17:58 +0000 Received: from m0098413.ppops.net (m0098413.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 2192HvlQ011998; Wed, 9 Feb 2022 02:17:57 GMT Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e44bygcmn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Feb 2022 02:17:57 +0000 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 2192D7qi007281; Wed, 9 Feb 2022 02:17:55 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma05fra.de.ibm.com with ESMTP id 3e1gva97ny-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 09 Feb 2022 02:17:55 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2192Hq8W38928696 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 9 Feb 2022 02:17:52 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4C36AA405C; Wed, 9 Feb 2022 02:17:52 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BF2F8A4054; Wed, 9 Feb 2022 02:17:51 +0000 (GMT) Received: from heavy.lan (unknown [9.171.78.41]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 9 Feb 2022 02:17:51 +0000 (GMT) From: Ilya Leoshkevich To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev Cc: bpf@vger.kernel.org, Ilya Leoshkevich , "Naveen N . Rao" Subject: [PATCH bpf-next v5 04/10] libbpf: Fix accessing syscall arguments on powerpc Date: Wed, 9 Feb 2022 03:17:39 +0100 Message-Id: <20220209021745.2215452-5-iii@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220209021745.2215452-1-iii@linux.ibm.com> References: <20220209021745.2215452-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: EVcb7dNd8Ek2UdXvEzLtq6O736SNRXCU X-Proofpoint-ORIG-GUID: pVExWYSIFH7p7yaJpgvB7yBp4ftsj0YD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-02-08_08,2022-02-07_02,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 impostorscore=0 mlxlogscore=999 clxscore=1015 phishscore=0 mlxscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202090014 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net powerpc does not select ARCH_HAS_SYSCALL_WRAPPER, so its syscall handlers take "unpacked" syscall arguments. Indicate this to libbpf using PT_REGS_SYSCALL_REGS macro. Reported-by: Heiko Carstens Tested-by: Naveen N. Rao Signed-off-by: Ilya Leoshkevich --- tools/lib/bpf/bpf_tracing.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index a5e92656bfba..20bc63770c9f 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -180,6 +180,8 @@ #define __PT_RC_REG gpr[3] #define __PT_SP_REG sp #define __PT_IP_REG nip +/* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ctx #elif defined(bpf_target_sparc)