From owner-freebsd-current@freebsd.org Thu Dec 5 16:38:51 2019 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4AA861CDA6C for ; Thu, 5 Dec 2019 16:38:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 47TLyM0LjRz4P5M for ; Thu, 5 Dec 2019 16:38:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mailman.nyi.freebsd.org (Postfix) id 09CFD1CDA6A; Thu, 5 Dec 2019 16:38:51 +0000 (UTC) Delivered-To: current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 087031CDA69 for ; Thu, 5 Dec 2019 16:38:51 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-io1-f53.google.com (mail-io1-f53.google.com [209.85.166.53]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47TLyL0b03z4P5L; Thu, 5 Dec 2019 16:38:49 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-io1-f53.google.com with SMTP id 2so1398303ion.0; Thu, 05 Dec 2019 08:38:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=fsiU8mM9xcDq1ws2y0jciyapyMgL/sE6bYxAZZ3Nv4I=; b=JkehPwLxtK70UEXHEK6nFDFjr0tp00xN5AZJ3FuFcuKixPdK0TK66Kio5Fs+uiVeYK lTwWnaWnwk9rElFrhrpQ4az/wtwK7A1TNpjwSUUBvVWw8TCMEu2+9TS5Ku0V2WMiyRWL eXy8o2cOSC2GWp8Lygvg9qKmPjeHiKxEZ121F8LlK4fVsKDKPd1VE9w/IJ+DNSYeZJXo r/gfJmaOMS/BE70+fGNpscFh9kkRxGTLHww58B0m3UgOf+/m9hW1aEbuh4tW5WG45HgU Nb2MnCff7OrcPF6tDNJRTrdSUbbaiACwnuSraKfpgaNYKyC8L2uyWM1LH+pL6KKFoNdJ 9tTQ== X-Gm-Message-State: APjAAAUt8uc/aQbgzdaoC8wAfhilBghP2f6CN4z+B6HHOZzZDEA88hPW 0WwL9Mzw2YrcYEI5YRm+6qQg3q/aOhGgQ7vPX2DN+/kR X-Google-Smtp-Source: APXvYqxKjwOp1Gpjz3eMmkWteCGkVDSOaoKb8RHX5ZRZPJBIgaRWSStGL7lUu0cI0FXZJO9glyrfzwNwc7UvzdMJPSk= X-Received: by 2002:a6b:c34b:: with SMTP id t72mr6764893iof.17.1575563928211; Thu, 05 Dec 2019 08:38:48 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Ed Maste Date: Thu, 5 Dec 2019 07:52:17 -0500 Message-ID: Subject: Re: kernel module code coverage To: Alan Somers Cc: Michael Tuexen , "slavash@freebsd.org" , current Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 47TLyL0b03z4P5L X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of carpeddiem@gmail.com designates 209.85.166.53 as permitted sender) smtp.mailfrom=carpeddiem@gmail.com X-Spamd-Result: default: False [-3.54 / 15.00]; ARC_NA(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; DMARC_NA(0.00)[freebsd.org]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; IP_SCORE(-1.54)[ip: (-2.57), ipnet: 209.85.128.0/17(-3.15), asn: 15169(-1.93), country: US(-0.05)]; RCVD_IN_DNSWL_NONE(0.00)[53.166.85.209.list.dnswl.org : 127.0.5.0]; FORGED_SENDER(0.30)[emaste@freebsd.org,carpeddiem@gmail.com]; RWL_MAILSPIKE_POSSIBLE(0.00)[53.166.85.209.rep.mailspike.net : 127.0.0.17]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; FROM_NEQ_ENVFROM(0.00)[emaste@freebsd.org,carpeddiem@gmail.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Dec 2019 16:38:51 -0000 > > Have you looked into /dev/kcov. This is used by SYZKALLER for getting > > coverage information from the kernel. > > > That's part of Matt Macy's gcov project, right?. No, /dev/kcov is independent of, and predates, Matt Macy's work. It provides broadly the same sort of information, but not using the same interface.