From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 74EF33857835 for ; Tue, 11 Apr 2023 13:30:21 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 74EF33857835 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1681219821; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Imwb2HozwUNexQIxdU7WIVtUekmiCRuIhSMH9QQlkAE=; b=MX8wzCnJtq7YGNQITw9PO5jmmZbvyt21df1aqmq7ygIRWS6aXI05irM5A8TuxguklZHp8n xxCFHmPrU7SpJ1UhOVIpZpx99rmUDy3eG2/gHQj77iVujUXr0MOqaIxK/dLWZRVC8iWJGd c/IVynntr41Ijo3bMWzxSsah+qs0CRw= Received: from mail-yb1-f198.google.com (mail-yb1-f198.google.com [209.85.219.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-620-jemzAMzwPYKk7Uj3OryCXg-1; Tue, 11 Apr 2023 09:30:20 -0400 X-MC-Unique: jemzAMzwPYKk7Uj3OryCXg-1 Received: by mail-yb1-f198.google.com with SMTP id b124-20020a253482000000b00b8f1b9d74ecso2731007yba.18 for ; Tue, 11 Apr 2023 06:30:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681219818; x=1683811818; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Imwb2HozwUNexQIxdU7WIVtUekmiCRuIhSMH9QQlkAE=; b=2oozyZrseng2b6Mf6HGOQT2FR2kdAWpRkotiLR0OHnR3FA8/cMbyd+u52X6KZcIzzF 1KcaQiX8fEax+Lqwxn+oewr6ffUWIuMJbZoA46RdeNcXrltQae5r3QDBjaROhKpST50F yAuARyvhy2zitDHc5Ttu1qbSLIExIpFYlYo2pTgxCEi+BtFLJgKEE7hl/qDg2N0uToXd tTSMB3XnOCmL5qIM4MtZyJoGcH3JHiCiiJBoP43gbeaqWzIWii0NiGhMUAfY397Uwei6 p9gDm5aKt2ZAxBlh6XzBUImupOBI5TOc2YmUef9CFqv7jwpid8Q0X/UnpC1mlIhXo/mD lLPQ== X-Gm-Message-State: AAQBX9doNWN+D7s5iom7k5x51Vwb03GiSyYn6+gBOlzhMqARNSREXklL FFmO7RvurIGkX4h4Z704DUWh7l9ITS22ChW5SdIY8RXHvYq8awtvhR6ljkG+Cpg6YcbVQieTiQH /QatjIsn4ImSEGHSQ5dhxjvxQRHuNEPvQi9yx5yOgQfvK7B8NfllmdMhmSNGafT1HliBjFpEL6m S26TOR X-Received: by 2002:a25:15c5:0:b0:a30:3ccd:e16e with SMTP id 188-20020a2515c5000000b00a303ccde16emr1619065ybv.2.1681219818629; Tue, 11 Apr 2023 06:30:18 -0700 (PDT) X-Google-Smtp-Source: AKy350ZEiTbml4im5ElNlR25lCwpD5Rdcs6kEhmjoYBYL/cJhluvD6ZpqHDiTl3rLDsyP9BQMtDuFA== X-Received: by 2002:a25:15c5:0:b0:a30:3ccd:e16e with SMTP id 188-20020a2515c5000000b00a303ccde16emr1619050ybv.2.1681219818322; Tue, 11 Apr 2023 06:30:18 -0700 (PDT) Received: from oak.redhat.com (c-71-206-142-238.hsd1.va.comcast.net. [71.206.142.238]) by smtp.gmail.com with ESMTPSA id n124-20020a0dcb82000000b00545a0818493sm3486425ywd.35.2023.04.11.06.30.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Apr 2023 06:30:17 -0700 (PDT) From: Joe Simmons-Talbott To: libc-alpha@sourceware.org Cc: Joe Simmons-Talbott Subject: [PATCH 2/2] aarch64: Set the syscall register right before doing the syscall. Date: Tue, 11 Apr 2023 09:30:04 -0400 Message-Id: <20230411133004.2268170-3-josimmon@redhat.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230411133004.2268170-1-josimmon@redhat.com> References: <20230411133004.2268170-1-josimmon@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: To make identifying syscalls easier during call tree analysis load the syscall number just before performing the syscall. --- sysdeps/unix/sysv/linux/aarch64/sysdep.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.h b/sysdeps/unix/sysv/linux/aarch64/sysdep.h index e94d1703ad..42a70feac2 100644 --- a/sysdeps/unix/sysv/linux/aarch64/sysdep.h +++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.h @@ -167,12 +167,18 @@ # define HAVE_CLONE3_WRAPPER 1 +# define MSTR_HELPER(x) # x +# define MSTR(x) MSTR_HELPER(x) + # undef INTERNAL_SYSCALL_RAW # define INTERNAL_SYSCALL_RAW(name, nr, args...) \ ({ long _sys_result; \ { \ LOAD_ARGS_##nr (args) \ register long _x8 asm ("x8") = (name); \ + if (__builtin_constant_p(name)) \ + asm volatile ("mov x8, " MSTR(name) ";" \ + : /* no output */ : "i" (name) : "x8"); \ asm volatile ("svc 0 // syscall " # name \ : "=r" (_x0) : "r"(_x8) ASM_ARGS_##nr : "memory"); \ _sys_result = _x0; \ -- 2.39.2