{"id":2198015,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2198015/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260218-bsd-user-claude-v3-18-0137b37b221e@bsdimp.com>","date":"2026-02-19T05:22:41","name":"[v3,18/24] bsd-user: Add do_bsd___semctl implementation","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"7f9b55bb25581d60f2b9ee88c368213bf8d82f59","submitter":{"id":1896,"url":"http://patchwork.ozlabs.org/api/1.0/people/1896/?format=json","name":"Warner Losh","email":"imp@bsdimp.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218-bsd-user-claude-v3-18-0137b37b221e@bsdimp.com/mbox/","series":[{"id":492638,"url":"http://patchwork.ozlabs.org/api/1.0/series/492638/?format=json","date":"2026-02-19T05:22:26","name":"bsd-user: Upstream misc system calls (System V IPC, reboot, etc)","version":3,"mbox":"http://patchwork.ozlabs.org/series/492638/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2198015/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=bsdimp-com.20230601.gappssmtp.com\n header.i=@bsdimp-com.20230601.gappssmtp.com header.a=rsa-sha256\n header.s=20230601 header.b=Kvz65PdW;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fGhd660jvz1xpl\n\tfor ; Thu, 19 Feb 2026 16:24:10 +1100 (AEDT)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1vswVG-0002pa-IK; Thu, 19 Feb 2026 00:23:06 -0500","from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from ) id 1vswVE-0002or-OM\n for qemu-devel@nongnu.org; Thu, 19 Feb 2026 00:23:04 -0500","from mail-oi1-x236.google.com ([2607:f8b0:4864:20::236])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from ) id 1vswVD-00021t-5y\n for qemu-devel@nongnu.org; Thu, 19 Feb 2026 00:23:04 -0500","by mail-oi1-x236.google.com with SMTP id\n 5614622812f47-45f194e9a98so196008b6e.3\n for ; Wed, 18 Feb 2026 21:23:02 -0800 (PST)","from rebo.bsdimp.com ([50.253.99.174])\n by smtp.gmail.com with ESMTPSA id\n 006d021491bc7-674758eb709sm14215326eaf.12.2026.02.18.21.23.00\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Wed, 18 Feb 2026 21:23:00 -0800 (PST)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=bsdimp-com.20230601.gappssmtp.com; s=20230601; t=1771478581; x=1772083381;\n darn=nongnu.org;\n h=cc:to:in-reply-to:references:message-id:content-transfer-encoding\n :mime-version:subject:date:from:from:to:cc:subject:date:message-id\n :reply-to; bh=zmzAcKrvw+80FElJtKbuDqFW03d0ZcWA2mq3lAw48qQ=;\n b=Kvz65PdWJGtoE6sk0Yf1TsbHZUh2OyEawJflXkwfQCCHsyvskSmXY5nYmOdMjysNwe\n 7bBzJP628FkC/Ejg7oRuCOMyb+W9jEI0tZvHU9AHsb6R7402qOc62xNbv3PP2F7kMzj4\n AXbSG05a/GgAZAfc+r1+YAm/2/s2uTzMrZMCcJFoJJ+Rz8TDqL6gmSb4pKpTKRsu/1dT\n 0t/m0M11dqA8GCrBDzv3JIZ3s3dNs3uO3XTAOUxfiDwgCz2U8i81rgsMggsujyluhS7T\n GBm0YiDKsOdJQtBNhrD1Eo+dqRWbyGKdtpH5skR9ycAaZ5G2wWioGNfjtKFRpIUfvOyR\n os6Q==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20230601; t=1771478581; x=1772083381;\n h=cc:to:in-reply-to:references:message-id:content-transfer-encoding\n :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to\n :cc:subject:date:message-id:reply-to;\n bh=zmzAcKrvw+80FElJtKbuDqFW03d0ZcWA2mq3lAw48qQ=;\n b=IzdaIrShqWpbaaYmb3beSaeqkMbqH0c33e/Dct+uWd/05kgwrNyF8RzkNz0jEFJ9I5\n XIDKaMk65J4v6/shwWMY9uFz3CgCL9P2Bxo7GmczDIdkn2OjibVJC3enMnma5gEqxNhP\n /mYp3MHR2GGQOl/HOJbjVpKXTY++RF38dJ1CjFFxniWMmJ6nC1xcXxlvspIzd3LDaz0n\n yseY+5bHJQ3JbXYS4HyeOrZoJR5URNDzhZMXNkIp8Kat+AijDJ2pPzHSLR7NH3hqqHSE\n lcLOihnQI6RTJ+rbBhl+1t/6+GVMRsWKwe/MSrV+M4C9YghVn4QuLNmqlz06OZZfM/uB\n bmog==","X-Gm-Message-State":"AOJu0Yxe7YyHHjxW/CK6V/yidYjyeyXEKd7U0fF20KJfXo3MTRT3GAJ+\n G8XUjFVVRri2YqrtGInzhoti358+zt+F4l4n4wnD69Eu4ljm7FYfxUoLVRx5GOy3Wfg=","X-Gm-Gg":"AZuq6aKvaWU3J4LrsKzSZ9/5WQE7fs9Isi6jFGRGhR63IBY8iy5U9MFBKzA8HDmVPn7\n YT4uZ1qGjKRy9yBMyTd0OXXMYhI8Nb3UbLqehRH9Rb6MAog6kOS051+BSwvAWubGo4lc5cASSVp\n 2aTL6BkWqa4vs9+on7zZxHidW3zsr68QEyUYzCub+FXpnD5oo5DhIaA9PqmG36IK0WzTilKAYQI\n qywSGSObxNJzQTBa2dhTUr0X4+gA5++29alS/dutfXkceGuyM1+FzmYQV5FUJYd9fWUb49oUbzO\n buwHFji1R/LDffIvk07aF7T9AHGg3I0+A07sXFBKF2aleawB3ThearXYo9D6h26HMBterV6ftsZ\n XxKaRviJeiHK93MIHXdRZoLIeZUnDKUW63VrURi0f3lvo77LDolD0iqPgCrIAAghZW1S8dkfq5H\n D/mlR5OrEp2g==","X-Received":"by 2002:a05:6820:991:b0:672:e67a:96cf with SMTP id\n 006d021491bc7-67766ad5b04mr8726622eaf.16.1771478581431;\n Wed, 18 Feb 2026 21:23:01 -0800 (PST)","From":"Warner Losh ","Date":"Wed, 18 Feb 2026 22:22:41 -0700","Subject":"[PATCH v3 18/24] bsd-user: Add do_bsd___semctl implementation","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260218-bsd-user-claude-v3-18-0137b37b221e@bsdimp.com>","References":"<20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com>","In-Reply-To":"<20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com>","To":"qemu-devel@nongnu.org","Cc":"=?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= ,\n Kyle Evans ,\n =?utf-8?q?Marc-Andr=C3=A9_Lureau?= ,\n Paolo Bonzini ,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= ,\n Riku Voipio , Warner Losh ,\n Stacey Son ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=3747; i=imp@bsdimp.com;\n h=from:subject:message-id; bh=CS/V5WC8Srq1FLPmW0uAGJGedye01GRaBY0Hn5RlDX8=;\n b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBplp4scuf4hpBud14pWQ4s+2Q0smTeW0bIjC1eb\n xjd0aE2W8KJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZaeLAAKCRBsHNEofbAR\n AKrtD/oDSX0WMFYuMgGVQHIlSbK2dszJ5stfUL3NpKuqeAtFbh/iRHTapGWcNZiITmld3njxm17\n eEQG8mXAurEXY6hhXc1CWNEqwh5rwDiSdj9DR8Z6q43xUhfg4fZn89mYukS46okGWFGGMnJFSs3\n SSu/XwqBAh8/MmEBxG0YqSelYtX5m/waGT8n81jNqwanAbwoc1CYbWG943cmcc/sIIFMmBS+wW+\n eQ93wxN0rcTXboQe03NsTB2G+po7aYMJ47oK2mC20lI79tmAlbKcnfXGuFrn511obmhfyeRXU29\n eR27TlDV0050RZjcU1P83oMyWrBUz0Ts5S3/uYUj4ItaishHG2Vc9n72DzJ5yMMtAMmkaXeOi9X\n a3VWh4kZrLMHBOG63gElzDqe76zHC2NY8aPv302AIBmjxbI/y69rcOYBcWYSFgO3CrJD2FElWWn\n /ZtjSS3g1PrvqacuT9QhDqjpXVhZstKziDv2/sF9FeaYollHkdUJ6O1v+k9TQsUjV1OmehMbUV4\n Xwdda+59jhnfiD239bxftTUmURGeJKuvKg4tJ3bectYWB4/n+WjZW5/8837nO0rdX71IohlReUo\n he8AZvInTM55HbAS+qVHXwgJZT+9BgEGr1VdX9PdZ6921vQ8AxcHzNOnqDOBWsfLPvaoWQ5bnls\n 0DtXW0Q5E5HH7cw==","X-Developer-Key":"i=imp@bsdimp.com; a=openpgp;\n fpr=2035F894B00AA3CF7CCDE1B76C1CD1287DB01100","Received-SPF":"none client-ip=2607:f8b0:4864:20::236;\n envelope-from=imp@bsdimp.com; helo=mail-oi1-x236.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,\n DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"From: Stacey Son \n\nAdd implementation of __semctl(2) syscall for System V semaphore control\noperations. Handles command translation, endianness conversion for GETVAL/\nSETVAL, and array/structure conversions for GETALL/SETALL/IPC_STAT/IPC_SET.\n\nSigned-off-by: Stacey Son \nSigned-off-by: Warner Losh \n---\n bsd-user/bsd-misc.h | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 116 insertions(+)","diff":"diff --git a/bsd-user/bsd-misc.h b/bsd-user/bsd-misc.h\nindex e1e552b58f..cb7fe1d6d0 100644\n--- a/bsd-user/bsd-misc.h\n+++ b/bsd-user/bsd-misc.h\n@@ -99,6 +99,122 @@ static inline abi_long do_bsd_semop(int semid, abi_long ptr, unsigned nsops)\n return semop(semid, sops, nsops);\n }\n \n+/* __semctl(2) */\n+static inline abi_long do_bsd___semctl(int semid, int semnum, int target_cmd,\n+ abi_ptr un_ptr)\n+{\n+ void *target_un;\n+ union semun arg;\n+ struct semid_ds dsarg;\n+ unsigned short *array = NULL;\n+ int host_cmd;\n+ abi_long ret = 0;\n+ abi_long err;\n+ abi_ulong target_array, target_buffer;\n+\n+ switch (target_cmd) {\n+ case TARGET_GETVAL:\n+ host_cmd = GETVAL;\n+ break;\n+\n+ case TARGET_SETVAL:\n+ host_cmd = SETVAL;\n+ break;\n+\n+ case TARGET_GETALL:\n+ host_cmd = GETALL;\n+ break;\n+\n+ case TARGET_SETALL:\n+ host_cmd = SETALL;\n+ break;\n+\n+ case TARGET_IPC_STAT:\n+ host_cmd = IPC_STAT;\n+ break;\n+\n+ case TARGET_IPC_SET:\n+ host_cmd = IPC_SET;\n+ break;\n+\n+ case TARGET_IPC_RMID:\n+ host_cmd = IPC_RMID;\n+ break;\n+\n+ case TARGET_GETPID:\n+ host_cmd = GETPID;\n+ break;\n+\n+ case TARGET_GETNCNT:\n+ host_cmd = GETNCNT;\n+ break;\n+\n+ case TARGET_GETZCNT:\n+ host_cmd = GETZCNT;\n+ break;\n+\n+ default:\n+ return -TARGET_EINVAL;\n+ }\n+\n+ /*\n+ * Unlike Linux and the semctl system call, we take a pointer\n+ * to the union arg here.\n+ */\n+ target_un = lock_user(VERIFY_READ, un_ptr, sizeof(union target_semun), 1);\n+\n+ switch (host_cmd) {\n+ case GETVAL:\n+ case SETVAL:\n+ __get_user(arg.val, (abi_int *)target_un);\n+ ret = get_errno(semctl(semid, semnum, host_cmd, arg));\n+ break;\n+\n+ case GETALL:\n+ case SETALL:\n+ __get_user(target_array, (abi_ulong *)target_un);\n+ err = target_to_host_semarray(semid, &array, target_array);\n+ if (is_error(err)) {\n+ return err;\n+ }\n+ arg.array = array;\n+ ret = get_errno(semctl(semid, semnum, host_cmd, arg));\n+ err = host_to_target_semarray(semid, target_array, &array);\n+ if (is_error(err)) {\n+ return err;\n+ }\n+ break;\n+\n+ case IPC_STAT:\n+ case IPC_SET:\n+ __get_user(target_buffer, (abi_ulong *)target_un);\n+ err = target_to_host_semid_ds(&dsarg, target_buffer);\n+ if (is_error(err)) {\n+ return err;\n+ }\n+ arg.buf = &dsarg;\n+ ret = get_errno(semctl(semid, semnum, host_cmd, arg));\n+ err = host_to_target_semid_ds(target_buffer, &dsarg);\n+ if (is_error(err)) {\n+ return err;\n+ }\n+ break;\n+\n+ case IPC_RMID:\n+ case GETPID:\n+ case GETNCNT:\n+ case GETZCNT:\n+ ret = get_errno(semctl(semid, semnum, host_cmd, NULL));\n+ break;\n+\n+ default:\n+ ret = -TARGET_EINVAL;\n+ break;\n+ }\n+ unlock_user(target_un, un_ptr, 1);\n+ return ret;\n+}\n+\n /* getdtablesize(2) */\n static inline abi_long do_bsd_getdtablesize(void)\n {\n","prefixes":["v3","18/24"]}