From owner-freebsd-dtrace@freebsd.org Fri Jul 21 04:56:30 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 B352BD7F7C4 for ; Fri, 21 Jul 2017 04:56:30 +0000 (UTC) (envelope-from xiaonan830818@gmail.com) Received: from mail-wm0-x234.google.com (mail-wm0-x234.google.com [IPv6:2a00:1450:400c:c09::234]) (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 475B363642 for ; Fri, 21 Jul 2017 04:56:30 +0000 (UTC) (envelope-from xiaonan830818@gmail.com) Received: by mail-wm0-x234.google.com with SMTP id w126so3620221wme.0 for ; Thu, 20 Jul 2017 21:56:30 -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=4iL2AaKAyTHAlvIGdQMkPUK75iojJ3wfRBY7kzGI2dk=; b=tPmfila7n6bmWVfmgzEM/hM0n2VhFmuM+ds7i8vNGgV2Y1r/i1uR3rQyltKSspYy2n 6iUttTiGqoWw3hPAkotoJk7reek9tQ2a4c/7FIVg/2adN8UZFB99Uv2F6+BUuc2+Zm9h CqFR7tXj+4ub0mcy9EnvOv0Ttb00j6Mj9n+7+ARvbLTn3u+gBTEcBqfSRSmQgVHHvHdv 4drZ3g+oAKyKcLDxEftUXAI++A+IExGhzt7xgADDCQyfq85b31UhrrBcYmCkG+OHwTli yry9S58A7vFy2bMD/2B4jugMlOrbvaJIAvMtT21xWy8kLlfJ3s8KMyLczKswvSs8lrA0 ufJw== 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=4iL2AaKAyTHAlvIGdQMkPUK75iojJ3wfRBY7kzGI2dk=; b=akaoDW6c5Ax+xhUq0wPE/UVZqYXxJn6UfFsIJLcM0PqyazU0daLXrXh0KO+uyIFwi5 uyYi/r0TlHwWA5ZMEU2a5X/v8UuWjdHlOjzEbgOltqSEfDyzr2QrF0AWG03FMILD97sR Q+5fT98656AL8HkaeAdkPfHiyOfWuvYjq1pxZ5V+aXHo3VpeKEXe+7eo/JloNL1uhYjM Qyn8igL1atNQn9HIBiYPx22mhWU/uzCBv3xOfLVOdvllW+kIN/hGV9dEHjWD4VQ6Xdi3 KShYqjdHrzbaMC7TE0NbmuldNt+z13BgnLTyqW+xCbD74ukJRxU1DIkEeKRtVxS6cnQE 7siQ== X-Gm-Message-State: AIVw112OWlDsNmDhGBESWztMW1KkPmiwUvF3Ifv92EHV1gt6Nus8IWeD SgGTB1lEa0QIXfMS6SVojLizXtezBMgN X-Received: by 10.80.204.151 with SMTP id q23mr1056835edi.259.1500612988578; Thu, 20 Jul 2017 21:56:28 -0700 (PDT) MIME-Version: 1.0 Received: by 10.80.162.231 with HTTP; Thu, 20 Jul 2017 21:56:28 -0700 (PDT) In-Reply-To: References: From: Nan Xiao Date: Fri, 21 Jul 2017 12:56:28 +0800 Message-ID: Subject: Re: Does DTrace script only support "#pragma D option ..", not "-x option"? To: Matthew Ahrens Cc: freebsd-dtrace@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.23 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: Fri, 21 Jul 2017 04:56:30 -0000 Hi Matt & Mark, Firstly, thanks very much for your responses! I change my script as this: #!/usr/sbin/dtrace -x dynvarsize=64m -s dtrace:::BEGIN { printf("Hello FreeBSD!\n"); } It still generates errors: dtrace: failed to set -x dynvarsize: Invalid option name But dynvarsize should be a valid option name. Thanks! Best Regards Nan Xiao On Fri, Jul 21, 2017 at 12:27 PM, Matthew Ahrens wrote: > > > On Thu, Jul 20, 2017 at 8:03 PM, Nan Xiao wrote: > >> Hi all, >> >> My FreeBSD version is 11.0, and I write a simple DTrace script: >> >> #!/usr/sbin/dtrace -s -x dynvarsize=64m >> >> dtrace:::BEGIN >> { >> printf("Hello FreeBSD!\n"); >> } >> >> Running it will generate following error: >> >> dtrace: failed to open -x dynvarsize=64m: No such file or directory >> >> >> So does DTrace only support using "#pragma D option dynvarsize=64m" format >> in script? I remembered Solaris can support both formats. >> > > This doesn't work on Solaris, because (at least on Solaris/illumos) > shebang binaries only support one argument; further arguments are silently > ignored. So your script does execute on Solaris, but the "-x > dynvarsize=64m" is ignored. > > And as Mark said, the -s needs to be last. But (on Solaris) then it'll be > ignored because it isn't the first argument. You can combine multiple > no-argument flags in the shebang line, e.g.: > > #!/usr/sbin/dtrace -vZs > ... > > --matt > > >> >> Thanks! >> >> 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" >> > >