From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1FB4CCD98E4 for ; Wed, 17 Jun 2026 11:12:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CcBIvnIE/g5EcJrZxW2ze7Q0xQHoWl7xN2Q+k05HnXs=; b=WMKr6eJCAgASJzzVTpm7GM2sMU u5csswkUoKRKHalGBdj/uOfSKuAEil2ZkTw7278YxQMEnAy8CTMbh7HjzPWqlaX+DsdvBiZyqJPzD KoEPe/NKTtQPuaOECMy2v7Rn3FQXSkpY97WsPi548GrFRmuiTvqyCtguIcF7Q34YK7uKTgSGb0xkJ k8TPTA6saz0xJDSxsO6kdf7MKbanZLtn995RnlXfvVmhkGI5V+I/96l5/e3RFZW4dvYUmoWzZAfIn CypzhX/vNyH9d/IAAXGwxALgLmb037TQclgRGKRGcNjRWOOGGiBzQviIgqWBxAMq+iJSRteaQhP/Y zI3MY3Zw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wZoBY-0000000HD9n-2A7h; Wed, 17 Jun 2026 11:11:56 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wZoBV-0000000HD9Q-45al for linux-arm-kernel@lists.infradead.org; Wed, 17 Jun 2026 11:11:55 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 013972D97; Wed, 17 Jun 2026 04:11:47 -0700 (PDT) Received: from localhost (unknown [10.2.196.114]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3C4413F915; Wed, 17 Jun 2026 04:11:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1781694711; bh=sV4JLlxysKqqLtfS+lU5GOlCV5cwun57z/a79Z97I9s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Fuz4zdPNdxaOaJJpgqLpgcyPxV6sWHE6vOdrGxcupMpy0DOg1Jty4hUHezyjcYd99 OGRLPz+mcBNKf5m0TajaNyE9SzRF/jre8UiRkNC9RiWLAFnnOSZBegyrXG5ziPJPcV vuDlW/iS6Kmh6H8p45y57XbC/MNA1JiQmwfyr3+Y= Date: Wed, 17 Jun 2026 12:11:49 +0100 From: Leo Yan To: James Clark Cc: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , John Garry , Will Deacon , Mike Leach , Suzuki K Poulose , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Al Grant , Paschalis Mpeis , Amir Ayupov Subject: Re: [PATCH v9 9/9] perf test: Add Arm CoreSight callchain test Message-ID: <20260617111149.GC31870@e132581.arm.com> References: <20260616-b4-arm_cs_callchain_support_v1-v9-0-f8fad931c413@arm.com> <20260616-b4-arm_cs_callchain_support_v1-v9-9-f8fad931c413@arm.com> <00183ce3-e387-4ca3-9eb8-67aa6a1221e5@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00183ce3-e387-4ca3-9eb8-67aa6a1221e5@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260617_041154_147257_97DA5D2B X-CRM114-Status: GOOD ( 12.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jun 17, 2026 at 09:38:42AM +0100, James Clark wrote: [...] > > +noinline void callchain_do_syscall(void) > > +{ > > + syscall(SYS_getpid); > > I get this error when compiling for x86, but it works on Arm: > > tests/workloads/callchain.c:17:10: error: use of undeclared identifier > 'SYS_getpid'; did you mean '__getpgid'? > syscall(SYS_getpid); > ^~~~~~~~~~ > __getpgid > /usr/include/unistd.h:659:16: note: '__getpgid' declared here > extern __pid_t __getpgid (__pid_t __pid) __THROW; Thanks for finding this. This is not the issue for program itself actually, it contains tools/arch/x86/include/uapi/asm/unistd_64.h rather than uAPI headers provided in toolchain or kernel. At current stage, we can simply change to syscall(SYS_gettid) to workaround the issue.