From patchwork Sun Sep 17 21:37:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karim Taha X-Patchwork-Id: 1835782 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; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=AUBhNGNw; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RphFT749vz1ync for ; Mon, 18 Sep 2023 07:41:17 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qhzUV-0004Xk-CE; Sun, 17 Sep 2023 17:39:43 -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 1qhzUU-0004XF-5W for qemu-devel@nongnu.org; Sun, 17 Sep 2023 17:39:42 -0400 Received: from mail-wr1-x42b.google.com ([2a00:1450:4864:20::42b]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qhzUS-0004G1-MC for qemu-devel@nongnu.org; Sun, 17 Sep 2023 17:39:41 -0400 Received: by mail-wr1-x42b.google.com with SMTP id ffacd0b85a97d-32155a45957so123104f8f.0 for ; Sun, 17 Sep 2023 14:39:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1694986779; x=1695591579; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Tcm4lmXBa5x1vWIwc3sC3J6lpJhMK9gQtwcOR8qWqPw=; b=AUBhNGNwI9dB8GA256jlzRu30udyGfPEqcmSodVLA99c5hCmz07UcK5ASUWwhOvNcU 77RVmJfw91loss8itbTRRoIU0dBTYFe987IsshsS8F9YyzQjt7n4OOFjpva8QMdWtPvv dD8s3Xyj+RCcknGHOt8obxUQpyLfBY2ldkJZHEY0SZm9Lnyww9wdK2ILe9NByo3OHoXl pSB7TTgrc5Qmv38q0VdP2TmsWx20Wzv9elluKpvD5Hpkgb9Uzn2nlRnKpOmtSB75V786 qzypZEAjFkmbcRgQwV1Eu1D31cZODP8XYJRh5u79unyB03uV7Sck6uI52pnsB4IC40Pr SMjw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694986779; x=1695591579; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Tcm4lmXBa5x1vWIwc3sC3J6lpJhMK9gQtwcOR8qWqPw=; b=w9q3uC6uePcEa5zrx39MvVLTHN3dspTyilTXM9i1/1d2Jm2AsVgcAKIJ82lOWCZs0w yp/dvaIdHM489dy2LCS8iD3sv2fJfV0OYsotosqmJd4Wt1ATaL/ajAaafqmkluHO8aff TOBcVZ2T0DdjPACAak3fgb3I73ktE+1inl4mg7FpaQdJ7nUSkmR77dPIx9X1iBFI4cXq WV5alBC45c/trIbLQ74Q7JbuL0J9v29WyZRtRzh+PcfZUrnpZ1HVuP5gzRCGRd9gR7jw CzaMk1h3vm5EqR0UsGqqSSgHmpzuvmccFMw7Hs1FqE0oil7iOAODwGq6D4e0z1I1mnbw cfLw== X-Gm-Message-State: AOJu0YywLyX2dFz8SeQ7u3ZpCg108pMdS707vW1fkZJ+7S8ZjbMRTqxn ZvdgaArbD2AC3vDnOMchjM8QGAZSweg= X-Google-Smtp-Source: AGHT+IFtZS6Gam5M4/Oi8Wum+d8M6P6mV0aNMlLMZ+f7wVI5QRNXgHEvIjU82toIuqpMn2wSLgTMmQ== X-Received: by 2002:adf:ce87:0:b0:317:57f0:fae with SMTP id r7-20020adfce87000000b0031757f00faemr5639275wrn.63.1694986779060; Sun, 17 Sep 2023 14:39:39 -0700 (PDT) Received: from karim.my.domain ([197.39.215.8]) by smtp.gmail.com with ESMTPSA id n11-20020a5d484b000000b00317ddccb0d1sm10561735wrs.24.2023.09.17.14.39.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Sep 2023 14:39:38 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Richard Henderson , Kyle Evans , Karim Taha Subject: [PATCH v2 10/28] bsd-user: Get number of cpus. Date: Mon, 18 Sep 2023 00:37:45 +0300 Message-ID: <20230917213803.20683-11-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917213803.20683-1-kariem.taha2.7@gmail.com> References: <20230917213803.20683-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42b; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wr1-x42b.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Kyle Evans Signed-off-by: Kyle Evans Signed-off-by: Karim Taha --- bsd-user/bsd-proc.c | 23 +++++++++++++++++++++++ bsd-user/bsd-proc.h | 2 ++ 2 files changed, 25 insertions(+) diff --git a/bsd-user/bsd-proc.c b/bsd-user/bsd-proc.c index 19f6efe1f7..78f5b172d7 100644 --- a/bsd-user/bsd-proc.c +++ b/bsd-user/bsd-proc.c @@ -119,3 +119,26 @@ int host_to_target_waitstatus(int status) return status; } +int bsd_get_ncpu(void) +{ + int ncpu = -1; + cpuset_t mask; + + CPU_ZERO(&mask); + + if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask), + &mask) == 0) { + ncpu = CPU_COUNT(&mask); + } +#ifdef _SC_NPROCESSORS_ONLN + if (ncpu == -1) { + ncpu = sysconf(_SC_NPROCESSORS_ONLN); + } +#endif + if (ncpu == -1) { + gemu_log("XXX Missing bsd_get_ncpu() implementation\n"); + ncpu = 1; + } + return ncpu; +} + diff --git a/bsd-user/bsd-proc.h b/bsd-user/bsd-proc.h index 048773a75d..b6225e520e 100644 --- a/bsd-user/bsd-proc.h +++ b/bsd-user/bsd-proc.h @@ -26,6 +26,8 @@ #include "gdbstub/syscalls.h" #include "qemu/plugin.h" +int bsd_get_ncpu(void); + /* exit(2) */ static inline abi_long do_bsd_exit(void *cpu_env, abi_long arg1) {