From patchwork Thu Jul 4 19:05:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Berg X-Patchwork-Id: 1957001 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=xYoHfaMx; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=sipsolutions.net header.i=@sipsolutions.net header.a=rsa-sha256 header.s=mail header.b=ayCgz4Vi; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4WFR1H3K9Zz1xqv for ; Fri, 5 Jul 2024 05:05:21 +1000 (AEST) 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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/RHcd/yUmz0Gk8fIDLX6wsZ8ME7gFNvXydNGe/JBc3w=; b=xYoHfaMxDK5GDVgJ/mu8sXGaVD Ka8QmpkJr+C3jsTPxU7sHlPKUQvZpgbhCn/jsw9HakSnBAfYt0VvIiyrlbrXo//HpqmM7TX8ePSUp MuufoFSFsWtMG0sAu/iDhe4Dfgk5N7rEchNDYM4aAHTJvmHO0TTUbnaSzhwZxVsf5fz2x5Uf4+fLs BNmSzlRWny4PPSMTsWLXf0TI+Ht2hRJswo0DlnqTm5qk+7778dlX9ANn75LvxdemI6Q0ByMt1NIqU DGi46Z8l+zRER1TGBGRMkVF9okwjZfhIMtB1bbzyMWojZic8xpaoZ6Sh1yOzSCB2pVpwx61d0m1Gb 04ZJojIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sPRle-0000000EEDS-1FUH; Thu, 04 Jul 2024 19:05:18 +0000 Received: from s3.sipsolutions.net ([2a01:4f8:242:246e::2] helo=sipsolutions.net) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sPRlb-0000000EECO-3LP0 for linux-um@lists.infradead.org; Thu, 04 Jul 2024 19:05:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=/RHcd/yUmz0Gk8fIDLX6wsZ8ME7gFNvXydNGe/JBc3w=; t=1720119915; x=1721329515; b=ayCgz4Vi/iwIqFHhZOVxmiH8JXYyGdRBSc9yT/d8VJfdpOW U4O/cfKP1i9FjkCnFuf0SHItT1KaRte1PC0GTMNLJiOWGbll0rosPhTF+FFkK5djf2lnhMwGoLaid 2aCoH3wnBuWgGxHFoU2tXaQ+V5xNpmBgSPq9xz7Y5m0XaJYBW8xj8izeEBwXiFIKzHlNY4pVdXv8D zZtrPHLb4ttvo0mzuX/StYeGkJMedwEV9wwJOu3maieT3ZZJ+3ffYNMLfWwm/4firM36FyrtWpbph 1Hw2NE1lWYT+eIrx/HTra2/eZ2Sh6ZOFFerRx0fv0bohnoMBW5WlF21XIMd1DGYw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.97) (envelope-from ) id 1sPRlZ-0000000DrZs-1HOC; Thu, 04 Jul 2024 21:05:13 +0200 From: Benjamin Berg To: linux-um@lists.infradead.org Cc: Benjamin Berg Subject: [PATCH v8 1/7] um: Add generic stub_syscall1 function Date: Thu, 4 Jul 2024 21:05:00 +0200 Message-ID: <20240704190506.1438493-2-benjamin@sipsolutions.net> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240704190506.1438493-1-benjamin@sipsolutions.net> References: <20240704190506.1438493-1-benjamin@sipsolutions.net> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240704_120515_845087_8043D9B5 X-CRM114-Status: UNSURE ( 7.28 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Benjamin Berg The 64bit version did not have a stub_syscall1 function yet. Add it as it will be useful to implement a static binary for stub loading. Signed-off-by: Benjamin Berg --- arch/x86/um/shared/sysdep/stub_64.h | 11 +++++++++++ 1 file changed, 11 insertions(+) Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-um@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-um" Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Benjamin Berg The 64bit version did not have a stub_syscall1 function yet. Add it as it will be useful to implement a static binary for stub loading. Signed-off-by: Benjamin Berg --- arch/x86/um/shared/sysdep/stub_64.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/x86/um/shared/sysdep/stub_64.h b/arch/x86/um/shared/sysdep/stub_64.h index 67f44284f1aa..8e4ff39dcade 100644 --- a/arch/x86/um/shared/sysdep/stub_64.h +++ b/arch/x86/um/shared/sysdep/stub_64.h @@ -28,6 +28,17 @@ static __always_inline long stub_syscall0(long syscall) return ret; } +static __always_inline long stub_syscall1(long syscall, long arg1) +{ + long ret; + + __asm__ volatile (__syscall + : "=a" (ret) + : "0" (syscall), "D" (arg1) : __syscall_clobber ); + + return ret; +} + static __always_inline long stub_syscall2(long syscall, long arg1, long arg2) { long ret;