From nobody Thu Nov 13 06:07:57 2025 Delivered-To: importer@patchew.org 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; 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 ARC-Seal: i=1; a=rsa-sha256; t=1578090075; cv=none; d=zohomail.com; s=zohoarc; b=gjtLNaooanTQr/ltx/VBXzgRxiqMFOS7NSohqdawWihHm4Vd1W9jKM9m1Uu9daW0hk6OKO2OrJ08DBEGMd71w6K/nTOKIC+z1y+1edrqMMNG6br4Qdbvpv4YW71P/+yHI+piS/cymtbPprKUZj43ckAGiPZfkJBLXzM4zW0l0WM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1578090075; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=+d+ImutwQoF4rGlPf7z19ge8YrsWkh/lpBiUDsuNRk8=; b=SCVw7mY1zXIzu/+C/TDhbEOPqdaqSM2Z9m5t9x8/see3LK/70Cau6tjnJoYK7gvLO9l287tnT00RIhYfc+igDALlvGF0evH2y6mpaNVnyFSoS19iSAmkvhMYnau0u2fB4tdUp3JAMIhKb1ElBjlbpEf5UsVkvVjWt8lJNRc6LXA= ARC-Authentication-Results: i=1; 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 1578090075179214.30766813295452; Fri, 3 Jan 2020 14:21:15 -0800 (PST) Received: from localhost ([::1]:57330 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inVJh-0000RG-Hl for importer@patchew.org; Fri, 03 Jan 2020 17:21:13 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39685) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1inVHr-0006z0-26 for qemu-devel@nongnu.org; Fri, 03 Jan 2020 17:19:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1inVHp-00087P-9F for qemu-devel@nongnu.org; Fri, 03 Jan 2020 17:19:18 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:53923 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1inVHo-00081e-Vu for qemu-devel@nongnu.org; Fri, 03 Jan 2020 17:19:17 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 84B3F1A207D; Fri, 3 Jan 2020 23:18:10 +0100 (CET) Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.14.106]) by mail.rt-rk.com (Postfix) with ESMTPSA id 56E421A1FD7; Fri, 3 Jan 2020 23:18:10 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com From: Aleksandar Markovic To: qemu-devel@nongnu.org Subject: [PATCH v3 11/12] linux-user: Add support for KCOV_ ioctls Date: Fri, 3 Jan 2020 23:18:01 +0100 Message-Id: <1578089882-3587-12-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1578089882-3587-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1578089882-3587-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@vivier.eu, amarkovic@wavecomp.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Aleksandar Markovic KCOV_ENABLE and KCOV_DISABLE play the role in kernel coverage tracing. These ioctls do not use the third argument of ioctl() system call and are straightforward to implement in QEMU. Signed-off-by: Aleksandar Markovic --- linux-user/ioctls.h | 5 +++++ linux-user/syscall.c | 3 +++ linux-user/syscall_defs.h | 4 ++++ 3 files changed, 12 insertions(+) diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index 060ab28..6be143a 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -543,3 +543,8 @@ IOCTL_IGNORE(TIOCSTART) IOCTL_IGNORE(TIOCSTOP) #endif + +#ifdef CONFIG_KCOV + IOCTL(KCOV_ENABLE, 0, TYPE_NULL) + IOCTL(KCOV_DISABLE, 0, TYPE_NULL) +#endif diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 171c0ca..6edcb0d 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -73,6 +73,9 @@ #ifdef CONFIG_SENDFILE #include #endif +#ifdef CONFIG_KCOV +#include +#endif =20 #define termios host_termios #define winsize host_winsize diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 75604e7..ab4414f 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2454,6 +2454,10 @@ struct target_mtpos { #define TARGET_MTIOCGET TARGET_IOR('m', 2, struct target_mtget) #define TARGET_MTIOCPOS TARGET_IOR('m', 3, struct target_mtpos) =20 +/* kcov ioctls */ +#define TARGET_KCOV_ENABLE TARGET_IO('c', 100) +#define TARGET_KCOV_DISABLE TARGET_IO('c', 101) + struct target_sysinfo { abi_long uptime; /* Seconds since boot */ abi_ulong loads[3]; /* 1, 5, and 15 minute load averages */ --=20 2.7.4