From nobody Tue Sep 23 22:17:31 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1752746018638619.019265343257; Thu, 17 Jul 2025 02:53:38 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ucLHQ-0007bW-Cg; Thu, 17 Jul 2025 05:51:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ucL0V-0001qG-8e; Thu, 17 Jul 2025 05:34:29 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ucL0T-0001o1-Dp; Thu, 17 Jul 2025 05:34:27 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 6BD21137CEB; Thu, 17 Jul 2025 12:34:04 +0300 (MSK) Received: from think4mjt.origo (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 4F24F2491E5; Thu, 17 Jul 2025 12:34:12 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson , Michael Tokarev Subject: [Stable-10.0.3 43/65] linux-user: Implement fchmodat2 syscall Date: Thu, 17 Jul 2025 12:33:39 +0300 Message-ID: <20250717093412.728292-4-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1752746018991116600 From: Peter Maydell The fchmodat2 syscall is new from Linux 6.6; it is like the existing fchmodat syscall except that it takes a flags parameter. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3019 Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson Message-ID: <20250710113123.1109461-1-peter.maydell@linaro.org> (cherry picked from commit 6a3e132a1be8c9e649967a4eb341d00731be7f51) Signed-off-by: Michael Tokarev diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 8bfe4912e1..9b397bac7e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -789,6 +789,10 @@ safe_syscall6(ssize_t, copy_file_range, int, infd, lof= f_t *, pinoff, int, outfd, loff_t *, poutoff, size_t, length, unsigned int, flags) #endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) +safe_syscall4(int, fchmodat2, int, dfd, const char *, filename, + unsigned short, mode, unsigned int, flags) +#endif =20 /* We do ioctl like this rather than via safe_syscall3 to preserve the * "third argument might be integer or pointer or not present" behaviour of @@ -10709,6 +10713,15 @@ static abi_long do_syscall1(CPUArchState *cpu_env,= int num, abi_long arg1, ret =3D get_errno(fchmodat(arg1, p, arg3, 0)); unlock_user(p, arg2, 0); return ret; +#endif +#if defined(TARGET_NR_fchmodat2) && defined(__NR_fchmodat2) + case TARGET_NR_fchmodat2: + if (!(p =3D lock_user_string(arg2))) { + return -TARGET_EFAULT; + } + ret =3D get_errno(safe_fchmodat2(arg1, p, arg3, arg4)); + unlock_user(p, arg2, 0); + return ret; #endif case TARGET_NR_getpriority: /* Note that negative values are valid for getpriority, so we must --=20 2.47.2