From owner-freebsd-dtrace@freebsd.org Sun Aug 20 03:40:12 2017 Return-Path: Delivered-To: freebsd-dtrace@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B10D5DDA8DE for ; Sun, 20 Aug 2017 03:40:12 +0000 (UTC) (envelope-from xiaonan830818@gmail.com) Received: from mail-oi0-x22a.google.com (mail-oi0-x22a.google.com [IPv6:2607:f8b0:4003:c06::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 75A61713B7 for ; Sun, 20 Aug 2017 03:40:12 +0000 (UTC) (envelope-from xiaonan830818@gmail.com) Received: by mail-oi0-x22a.google.com with SMTP id f11so128132919oic.0 for ; Sat, 19 Aug 2017 20:40:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=VFMjCexwWw/6VK/ttH3sm0OZHqNpee2tM+mfi3dmQ7Q=; b=DMO+t8Hf6VT3Mr7U9PdlW2nEJiLu0S606U+0mjAA5ee/fB8bU2sHpeXhum1z7ZM6Bc qCF0jDBv+XKJtUzjJoEOsuRgwzV2pUW6J1Hw4B+CL2Ta6ah5RitMnd9+E64w5SSG3ht8 21aiVQC3QMi5gvjmkOu3Ve9V9QhyKtExrILzAriVbvGDaYUMXrKe1+9qqlsBDlvOACV7 yIYmzwWhuua1oP1CK6bPN+dyWsfZy5zJUj/lXjFxVX6uzxbUdt2Ry4QMcEuXqGI0EBG5 Sh8Nl9844rpKdVjKCTkfSVgzKyOn8uI5oI74EdQB2rNkg4YyJ/Z2+Ngjgrj6LsRLq9Rb l7EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=VFMjCexwWw/6VK/ttH3sm0OZHqNpee2tM+mfi3dmQ7Q=; b=byRgxs1AAEv3KNCz8BlC5jOabmtcET4Lng97Bblf0unsKbiYMltiNJq0QqF4y5/e2p h3rnFjIQ4cnQVmZ3Gng/4CQH6KtqGD0apU63XRQGHI4kzW1fMJQPNL4tnAEkLgEihi97 scaOruKnilkx75E20EwHiNF0bG/sxqbeWlDZnjIpc3pWyM0yMkTWLMyQS6sp3BW1d5Jr lhWD3Sbk9h/f/m175Oidi4UigXVd7o/MwKbrEccsIOFQ+Gb2JxOLENk98SYKgK7aN26z sNQVyVSXL1gQlPNzLTu/lEkv7AZTrJQSchnRRACfhODG/bdSbi+27BIlbBctd6CGKwdu gVSA== X-Gm-Message-State: AHYfb5g39aKBXISYkM+bgKh3b6pWyQNacYeLwZqP01UISA096jQGAkvR VCk1w9jBokjBOYkrqKroB22uCzE9ew== X-Received: by 10.202.108.150 with SMTP id h144mr19084536oic.290.1503200411603; Sat, 19 Aug 2017 20:40:11 -0700 (PDT) MIME-Version: 1.0 Received: by 10.157.8.74 with HTTP; Sat, 19 Aug 2017 20:40:11 -0700 (PDT) In-Reply-To: References: From: Nan Xiao Date: Sun, 20 Aug 2017 11:40:11 +0800 Message-ID: Subject: Re: Does DTrace on FreeBSD support macro argument? To: Ryan Stone Cc: "freebsd-dtrace@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-dtrace@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "A discussion list for developers working on DTrace in FreeBSD." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Aug 2017 03:40:12 -0000 Hi Ryan, You are right! Thanks very much for your help! Best Regards Nan Xiao On Sun, Aug 20, 2017 at 4:45 AM, Ryan Stone wrote: > If a script uses a positional argument like $1, the script will error > out if you don't provide that parameter. Try instead supplying a pid > on the command line: > > # ./tracewrite.d 123 > > On Fri, Aug 18, 2017 at 3:27 AM, Nan Xiao wrote: >> Hi all, >> >> Greetings from me! >> >> I am trying the following simple script on FreeBSD 11: >> >> #!/usr/sbin/dtrace -s >> >> syscall::write:entry >> /pid == $1/ >> { >> } >> >> and get following error: >> >> # ./tracewrite.d >> dtrace: failed to compile script ./tracewrite.d: line 4: macro >> argument $1 is not defined >> >> From this link(http://docs.oracle.com/cd/E19253-01/817-6223/chp-script-3/index.html), >> it seems FreeBSD doesn't support macro argument, right? If I want to >> use it, what is the correct method? >> >> Thanks very much in advance! >> >> Best Regards >> Nan Xiao >> _______________________________________________ >> freebsd-dtrace@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-dtrace >> To unsubscribe, send any mail to "freebsd-dtrace-unsubscribe@freebsd.org"