From patchwork Fri Feb 4 14:50:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Leoshkevich X-Patchwork-Id: 12735193 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 0F3BDC433EF for ; Fri, 4 Feb 2022 14:50:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242053AbiBDOu5 (ORCPT ); Fri, 4 Feb 2022 09:50:57 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:11692 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238829AbiBDOu4 (ORCPT ); Fri, 4 Feb 2022 09:50:56 -0500 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 214CpS7t016579; Fri, 4 Feb 2022 14:50:38 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=fOANTYNjGcu1Z1XO/KfDfJFvphJrALnvU+5juVHSfqY=; b=iEEaAfZdnc8fUcvSoPbg3iihfoW0ho3S4jmh0WOI+36TYuA3WdIg2qIb8aupUpcbOPpR M2TlGi9LylfwCxmpVh/DVUHOjaRVsNjyizLFnWR/iqTITihornc20Yfgwq8WWMGMAsy9 FYoxuUBz9TU8mxpUgNs4yAyeCHWb2Xf3uQP2P2YUo9RongHfG6/oy4SC7ueaWAHxMf3D lGGZyBPw+xksceQttHRxRdn9y9g0db5cglbvbI8HYpiClumdpgPNehtR4fqmT9qEeQ13 njcu1s5DBpQlKH/4TESPS/KJC9+cuOEYl4o1zlCQn9Hu4CU7LuTJJLltwMNwk5v071hB 9Q== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3e0qx382vj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 14:50:38 +0000 Received: from m0098399.ppops.net (m0098399.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 214DGrak028094; Fri, 4 Feb 2022 14:50:37 GMT Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com with ESMTP id 3e0qx382ut-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 14:50:37 +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 214ElQce007240; Fri, 4 Feb 2022 14:50:35 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma05fra.de.ibm.com with ESMTP id 3e0r0x5j0t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 14:50:35 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 214EoVfX41091366 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Feb 2022 14:50:31 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AAAD85204E; Fri, 4 Feb 2022 14:50:31 +0000 (GMT) Received: from heavy.lan (unknown [9.171.78.41]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id E9E7B52051; Fri, 4 Feb 2022 14:50:30 +0000 (GMT) From: Ilya Leoshkevich To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev , Catalin Marinas , Michael Ellerman , Paul Walmsley , "Naveen N . Rao" Cc: bpf@vger.kernel.org, Ilya Leoshkevich , Andrii Nakryiko Subject: [PATCH bpf-next v3 11/11] libbpf: Fix accessing the first syscall argument on s390 Date: Fri, 4 Feb 2022 15:50:18 +0100 Message-Id: <20220204145018.1983773-12-iii@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220204145018.1983773-1-iii@linux.ibm.com> References: <20220204145018.1983773-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: pE3iUm8dkTtE7kyrMOpO6Fefi_ekhvQn X-Proofpoint-GUID: qL0bz2KbmbxxHHpO6x1yt9g_tuMbhRcB 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=2022-02-04_05,2022-02-03_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 priorityscore=1501 malwarescore=0 bulkscore=0 impostorscore=0 spamscore=0 phishscore=0 adultscore=0 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202040082 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net On s390, the first syscall argument should be accessed via orig_gpr2 (see arch/s390/include/asm/syscall.h). Currently gpr[2] is used instead, leading to bpf_syscall_macro test failure. Reported-by: Andrii Nakryiko Signed-off-by: Ilya Leoshkevich --- tools/lib/bpf/bpf_tracing.h | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 169d47aa0a79..cf980e54d331 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -117,6 +117,7 @@ /* s390 provides user_pt_regs instead of struct pt_regs to userspace */ #define __PT_REGS_CAST(x) ((const user_pt_regs *)(x)) #define __PT_PARM1_REG gprs[2] +#define __PT_PARM1_REG_SYSCALL orig_gpr2 #define __PT_PARM2_REG gprs[3] #define __PT_PARM3_REG gprs[4] #define __PT_PARM4_REG gprs[5]