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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b5e8e0d289sm1638405f8f.55.2025.07.10.04.31.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Jul 2025 04:31:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1752147085; x=1752751885; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=lDJ2vIkPhvwM5DiRQNz5jjkVQ813bG8xx9tfM2SSO8c=; b=hYFMJGhzKLdYAxhkzjKJkLNDMRNvxS39Kl6rE0IB7Wd1fAP/yzRptwHmJp8Ev4lIlW 6Uyky3du79BQdmA1ZrcTPZZFKAVqGwLqsFPeRrPwKKxaEj6oqxh2evRObc1o/tEEVp46 yhr3C/yJ8nUIYEpKh37EUSygaddDUSF0KloWYrrbRYHv7OmK6sMJYeWq1DEHQd6Yqb9y j5f6HNbUUgOuMNoOu4/LK9hmyLTB4CRw+y/ddNxy7zHtZrQpkNsU1u7Q0sG3rIemL+Ke Y8x2pEiB6NJswozpyEfqG0l7vb3EdelSOGzCl5Ze97NbkDpkEroDtcgJ6cNzNegRVmiQ UFkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752147085; x=1752751885; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=lDJ2vIkPhvwM5DiRQNz5jjkVQ813bG8xx9tfM2SSO8c=; b=oqztZsxnF0Xd8X89PacBsrBAmoJHYTktkxZD/Y8feOlbGNPVK9qleaW2dM2MnoHgt2 PDFvePSI/m7mp44oO7k4C1AXeuvfUTxBD0m1hXDf649FjurID/Limr4WcufTlSXQUkYM W0xAZzOyS8ASdZa23gTz8JHOn9Fv+Exi4mf+yrOivkM9uJlLwp85uu9iDBwp8k+apJI/ 7XThOVC5rD2/VS8At3D5zUTOBOt+kDjmxyDqkZubCxHJV6FmxzWIKW1/5FqUJM5Y/lAF 2oNjaDr11O48MaHBB+rtq2p8AnRCzPgCrZlgtjQGMH7mVe9087ZbFqcvTZbQVQLS/oT7 FXSw== X-Gm-Message-State: AOJu0Yxv+9RcgPsD3wlFdRk6TEm+lMFDI5ijUsUywEglhpcey33kF0J5 dyI4pV+j8TxgtQmLvly4sD2mWyPkdPfvz/6D2D1zKFBbZtPiwLLef+L9bMVInECVM4ts1ASydGE W4cTu X-Gm-Gg: ASbGncveZoUhtqkHJlALHqbEWN+8f0QTc+BQYdtnhawFz0btn2p0wjQ+X3SHxy1kpIi 41OgUb4tgS23Q6lOfdAKcgX+f6cBa9fv3TtmK0sMVqgJUeYheserqsklUQMxRFIB4tNvzgs0rLN +zr/Tk/Y7vddoSzMyZz6nJFjiXOmysLPNHzM8kSOCuTVcoV101/NCzAa/Ox1E/dMxsD3L6znWkZ HlgS1cpLLsADFniTIO7DhtcVrptPf5ZhwYzOYWUf5fjk9xjvlfl3aqrjSv0uKbxVnXzEr5L7hvP Em90bIyHZd/rljIPesCXui+Xj+uxj1BEC2LhCbtfwmGI5coa49jVTZa1+Fo5iuD4oRf7 X-Google-Smtp-Source: AGHT+IFmBmAjMZVsA7CQSA/Qtm2zH2jFe2gzq3jIxzdEAMYUIEPtxLXejQtuq0Jj1LVxjKC6DBOkGQ== X-Received: by 2002:a05:6000:290b:b0:3b5:e077:af24 with SMTP id ffacd0b85a97d-3b5e866f3b6mr2218812f8f.14.1752147085475; Thu, 10 Jul 2025 04:31:25 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Cc: Laurent Vivier , Richard Henderson Subject: [PATCH] linux-user: Implement fchmodat2 syscall Date: Thu, 10 Jul 2025 12:31:23 +0100 Message-ID: <20250710113123.1109461-1-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 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=2a00:1450:4864:20::42a; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1752147152032116600 Content-Type: text/plain; charset="utf-8" The fchmodat2 syscall is new from Linux 6.6; it is like the existing fchmodat syscall except that it takes a flags parameter. Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- v1->v2: don't bother with trying to fall back to libc fchmodat(); add missing braces for if() --- linux-user/syscall.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index fc37028597c..e1b1476936c 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -790,6 +790,10 @@ 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 @@ -10713,6 +10717,15 @@ 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 2.43.0