From nobody Mon Feb 9 21:21:15 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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 ARC-Seal: i=1; a=rsa-sha256; t=1770578935; cv=none; d=zohomail.com; s=zohoarc; b=mIDuIsRlU5W2qCDw4jY2VQ9ZMXQNeYVk03QZIK+gfFASl8AqNvKVJZk9XpdKdVeIUnc28JYUuXpGMZFdDd7z+abhVgZwotETZgSjn+iElcETmsQsc5+1DPUGrx4FOGJ2AMonZAy4f8ar1rKHcwgF1YNLqtitpfeN1oF4Iq9n+DQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1770578935; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=ljONX2ar5rII3EFiqoZLf6I1mkPdZFg2Wj+97CVjdFQ=; b=kQytkqK9HWKpw7h3a4/1frlAtHG35yarTOzESjX7LpGfA7K8ZJw0HvE52xOGSuQigct5/rkLSM/9BpSzw/KQz6mvobEjOg2P3IiooA+jLLAsYQ2eO8C6e9iY+5g87PET6UlPKRLopk3Bh7PcDiTSDDeQtaIT0e62mqYZ7oIS5Mg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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 1770578935666369.1910018429106; Sun, 8 Feb 2026 11:28:55 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vpAS0-0000pQ-G2; Sun, 08 Feb 2026 14:28:10 -0500 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 1vpARC-0000dt-F1 for qemu-devel@nongnu.org; Sun, 08 Feb 2026 14:27:23 -0500 Received: from mail-oo1-xc31.google.com ([2607:f8b0:4864:20::c31]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vpAR7-00006j-Ri for qemu-devel@nongnu.org; Sun, 08 Feb 2026 14:27:16 -0500 Received: by mail-oo1-xc31.google.com with SMTP id 006d021491bc7-662f65c7d8cso2025110eaf.2 for ; Sun, 08 Feb 2026 11:26:49 -0800 (PST) Received: from rebo.bsdimp.com ([50.253.99.174]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-66fdf303607sm1741301eaf.14.2026.02.08.11.26.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 11:26:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20230601.gappssmtp.com; s=20230601; t=1770578808; x=1771183608; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ljONX2ar5rII3EFiqoZLf6I1mkPdZFg2Wj+97CVjdFQ=; b=FTAQ3I3GlVhwomjnrmVojH3cRIbxI4CMM4VwgpGWn7kL4R2YJuoifsGqHkER6tM6mv txAFlUzkFsYXbyf0H25RrXbPUpvH0tHk+cXsCvFAz4Yh0yxWbEkHjTBGny9o2IxyzivR lkj0hkgN3zpfsb8fOtcS64Zj+OeYah5amgQHynR1lKJ/soFw8nwSVMzHrSfyaAKBPswj k8hmsemiOZ5XWrTLT5+Cy8JPscRCGuPmi4fsBplxhLqYJkAswA6aw9mrAC727+nUUZOk +jDH3QsIs8Vfmey5YASJvCDi4G+1SMoi8T6YGTt7Icd90GmOu78TSLGlGqBGqzbAizyp 3buA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770578808; x=1771183608; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=ljONX2ar5rII3EFiqoZLf6I1mkPdZFg2Wj+97CVjdFQ=; b=HbPqY5Ehc/p260kjWOyIXDxu9QiaJcOcKMDOZmF8O83/8ZKiIs1k5JfQGh9+jQMuWi a7fA5otMt2HtDY/i78bc13/o4NOoVm0NXA+B7TL96ciamisTduE6qUWIk7JgYbReYrz9 9xclCtAo/K0Me4Xi8y2fZuboEs25d6bQELxgX2m0FeFyosGNrV1Q0/zkNfbkXaYAKtLk dXgh6lg19IiGUJngGg5/G5/4xykLybc+8Mg6h1A44ktPiGgdaSNMvLUhh1bnG2eLchEq Eu6srB7QFm3hc3tuzWwi2Cfys4NVF08jshOUz02xn6BYvi6XjrFJ96CMxzNN3At1odJR RRmQ== X-Gm-Message-State: AOJu0YxFRfRSTPP0TmBbvD2zOPrTOencpt4yxCeLPn/IrmOgZfPaThZq J3rI3pIN0dgq5tK1UTndEVzg6hE4+5JRUuURRx2xXx6GyfasJEZN6ghxhrv289Q2SSw= X-Gm-Gg: AZuq6aLl7kmOSb6WJJMfRXffOjIBliuOzMIrbtnTPIhsHHjkZW8IxiLgGizjxT9rmwC e90U9eh9Lu8uIbxRkxGoVPQoxn5+nxbxaYkJ3O/KSqHk7YpAh/uTzlqG5bgXH1rwsYbSTLjb+2Z /JD72X4xdEIWTlLwae41IrV22GVmUofkDSyOQzUBJKXEiAxc5eYdnML0z28tyeeeyjNd05SOJaA UeC/FdUPzlWV6m1OC59jVuN81U9tFw40c9dC+UhwSjPBbAn120VETE+/Avr4WUQhGS2H4M9cwyA /qHj6SdXUlKUjvHaA7ATIuLuKjvGbQWXkbWwU9mcl25C3MJVdhwrkRigSdst6RWYCKKkw+dt21O MYTxjYuGOZhXsOKLHk3D2+H+KrMVwQ/05DNLWR4aLEQIdQYDu+OSbm7ShXix3+guQBaXv2xUCqm zD8wuLFiDM X-Received: by 2002:a4a:e84a:0:b0:661:1c57:1b3f with SMTP id 006d021491bc7-66d0bcb9834mr4052700eaf.46.1770578808241; Sun, 08 Feb 2026 11:26:48 -0800 (PST) From: Warner Losh Date: Sun, 08 Feb 2026 12:26:26 -0700 Subject: [PATCH v2 17/24] bsd-user: Add do_bsd_semop implementation MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260208-bsd-user-claude-v2-17-58e5fcfdb84f@bsdimp.com> References: <20260208-bsd-user-claude-v2-0-58e5fcfdb84f@bsdimp.com> In-Reply-To: <20260208-bsd-user-claude-v2-0-58e5fcfdb84f@bsdimp.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Kyle Evans , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Riku Voipio , Warner Losh , Stacey Son , Richard Henderson X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1559; i=imp@bsdimp.com; h=from:subject:message-id; bh=nxMC1ALQtLcYfQvQkCZueSsGWPbPJJEx7nQ1XD4BbBo=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBpiONhG1xRsnNzCZ3qjIjEC1d/hrSmo2iMC5mwi zm1e5HQLo6JAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYjjYQAKCRBsHNEofbAR ABvKEADqII7iUpw+UC88Bz8lGDON/giwB1yCj5J/XmfGYsWvgryBqfwvzZm9tK5XUlEI0/ywCYE 3vMpWH+ITg0j/wf2omn79EPq/X3yLsNwQsOQeV5E+TcoxanwwgREORXp3gJGTakip6Xn7ZN0m4A 5Fuj7w0B1RnlK/RyJ2g8avptD28SGY+2iFPYbkkQhWq9I3uWWBv3J9czLbOGL3ze8bW4DhImj2h fX60yPco+y7HToeGtnR59WW3IidNIrmt955H520qqjB9qKKu1GlXFW+P50h9WNCE8MCI4ooSzhQ k5sGQkSs9ZBgLA+wtsmC6mNRLBE1ZKJU+3H6QOH8xtzOMeFfB35SiEg/1H6Fr6+eYsy+qY7YdzL 1lnysArNSTQvhbbg7ktfk/lP9SFc6jFZdKQhphJkEUOO0PW/t750BdZdnpSlPctcwIUuyE4BUuO YuMmIXdSVL9oP/2aoXwrptwPuEuktcXyedBNl2/vfm20EQ3Bm4eJtbOtUWyLfrKd8alRkR8JwoQ smJ50MmMvXSNXyAgfxEIQePdqOEMI4pWpjOVYsRzHmt191t+m/xyPUoAPNuxaWC8TrNbitCPF0R HNe++8S7oa1VDXxX85C3AAevv1fvDD7m1CLBC0Jek6Wk06DCyucJlYFOoXwhNBQZADS6c70fQHC ArA56pUjIlABjkA== X-Developer-Key: i=imp@bsdimp.com; a=openpgp; fpr=2035F894B00AA3CF7CCDE1B76C1CD1287DB01100 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: none client-ip=2607:f8b0:4864:20::c31; envelope-from=imp@bsdimp.com; helo=mail-oo1-xc31.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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: qemu development 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 @bsdimp-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1770578937428154100 From: Stacey Son Add implementation of semop(2) syscall to perform System V semaphore operations. Converts target sembuf array to host format and executes operations. Signed-off-by: Stacey Son Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-misc.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/bsd-user/bsd-misc.h b/bsd-user/bsd-misc.h index cc489ab13c..cba0b2ec92 100644 --- a/bsd-user/bsd-misc.h +++ b/bsd-user/bsd-misc.h @@ -84,6 +84,28 @@ static inline abi_long do_bsd_semget(abi_long key, int n= sems, target_to_host_bitmask(target_flags, ipc_flags_tbl))); } =20 +/* semop(2) */ +static inline abi_long do_bsd_semop(int semid, abi_long ptr, unsigned nsop= s) +{ + g_autofree struct sembuf *sops =3D g_malloc(nsops * sizeof(struct semb= uf)); + struct target_sembuf *target_sembuf; + int i; + + target_sembuf =3D lock_user(VERIFY_READ, ptr, + nsops * sizeof(struct target_sembuf), 1); + if (target_sembuf =3D=3D NULL) { + return -TARGET_EFAULT; + } + for (i =3D 0; i < nsops; i++) { + __get_user(sops[i].sem_num, &target_sembuf[i].sem_num); + __get_user(sops[i].sem_op, &target_sembuf[i].sem_op); + __get_user(sops[i].sem_flg, &target_sembuf[i].sem_flg); + } + unlock_user(target_sembuf, ptr, 0); + + return semop(semid, sops, nsops); +} + /* getdtablesize(2) */ static inline abi_long do_bsd_getdtablesize(void) { --=20 2.52.0