From owner-freebsd-dtrace@freebsd.org Mon Mar 2 16:03:31 2020 Return-Path: Delivered-To: freebsd-dtrace@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 EB5E32526AD for ; Mon, 2 Mar 2020 16:03:31 +0000 (UTC) (envelope-from kamalpr@gmail.com) Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) (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 48WQ0y47qsz4DF2 for ; Mon, 2 Mar 2020 16:03:30 +0000 (UTC) (envelope-from kamalpr@gmail.com) Received: by mail-pl1-x644.google.com with SMTP id p7so4370047pli.5 for ; Mon, 02 Mar 2020 08:03:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=6CHpyKcw/9FRDh6UBa1E2nYbpRcR3GXefdUxBVIJt8k=; b=EqL/zKXgS0dMdNXnkTRWLTMGbLnMky/Cww9ZysdyNnbWUM+canbZHOioPznxORN8KG 9ZVJVjrOY4Fv0ENfI6QdRXWiOZSV4Chg/L5HS2RblsC3Aq8e0l55laIvCO7Ui12uIsk4 RLNifC1dYG+xkDYNSsLv1Jmo0v+f6kdKuAtlR6oiuiLUQLCKFbG4h64d7pwP6pkmKHEn pgz1GD28YaOh54wkKDsTokWJDTiFrx3jbeTqCfcHzP1GboBRzTYc9U4lGJQqX4bLOwBK azP4eIuIBJLZkrBAH8kT032aUo+/Xb+4KiJMI6DUDp8MwEXX+Q31sd8SRFilcYxPWrze qbNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=6CHpyKcw/9FRDh6UBa1E2nYbpRcR3GXefdUxBVIJt8k=; b=Ft4jCCr3lM5mIDJXMuRWMF24VJE+zs01QolWptN/6idD9kpetzbptsmWJqwIrWsoHV 841mQuMe9to0v1T8nczeLHYVZLrrPY3NdbMy3ncgwxE4FuKFfwsIrXYr6x2XPHCrrJMH MfAC8Hf6DMtv5+j6XAkqJM83a8DgTL37uMYA07TVC710N551TN+FD7w8anvcSqiSpc8d uLfahTuvuVFUUb+Sczn4AE6hdfK1t2PT/c5DP3agyManIYuVFevm43abvmTiAJ7098Za sqsLxde8fjWv8U8icveP9PMwOE3+U9iuXT8IHwdi3tz30dyi19j+0RKBdjb4/lLAbdc6 N7WQ== X-Gm-Message-State: ANhLgQ06e3o11Tb1pola2YnmkvpzwApF1+wvNBIUuorbZo5UIpCVWcfa wRudj1naypKR8SQQLZofoHXSgUfmsg== X-Google-Smtp-Source: ADFU+vsb58OqUvekkKCcawNeL5PWB0uxziefO3TfZFFjboRLCJsEHwqTslpaJcTDbVuXvmQ3+g6jPQ== X-Received: by 2002:a17:90a:3644:: with SMTP id s62mr255153pjb.189.1583165009357; Mon, 02 Mar 2020 08:03:29 -0800 (PST) Received: from [192.168.1.3] ([122.179.30.234]) by smtp.gmail.com with ESMTPSA id k1sm907084pgg.56.2020.03.02.08.03.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Mar 2020 08:03:28 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: set argument From: Kamal Prasad In-Reply-To: Date: Mon, 2 Mar 2020 21:37:34 +0530 Cc: kamalp@acm.org, freebsd-dtrace@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <0852C183-1EC6-4B19-A947-65C8669708C5@gmail.com> References: To: Ash Gokhale X-Mailer: Apple Mail (2.3273) X-Rspamd-Queue-Id: 48WQ0y47qsz4DF2 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=EqL/zKXg; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of kamalpr@gmail.com designates 2607:f8b0:4864:20::644 as permitted sender) smtp.mailfrom=kamalpr@gmail.com X-Spamd-Result: default: False [-2.50 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; FREEMAIL_FROM(0.00)[gmail.com]; MV_CASE(0.50)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FREEMAIL_TO(0.00)[gmail.com]; RECEIVED_SPAMHAUS_PBL(0.00)[234.30.179.122.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.11]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-dtrace@freebsd.org]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[4.4.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; IP_SCORE(0.00)[ip: (-0.59), ipnet: 2607:f8b0::/32(-1.86), asn: 15169(-1.66), country: US(-0.05)]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-dtrace@freebsd.org X-Mailman-Version: 2.1.29 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: Mon, 02 Mar 2020 16:03:32 -0000 Is it possible to include the header ind race so that I don=E2=80=99t = replicate structure definition? > On Mar 2, 2020, at 9:28 PM, Ash Gokhale wrote: >=20 >>=20 >>=20 >> How does dtrace access the argument type declarations when we define = a new >> SDT? eg:- I define an SDT that has arg0 as (struct mystrust*) >>=20 >> I have defined in my proprietary header file >> --------------- >> ... >>=20 >> I want my probe to be able to access the typedeffor struct abc and = struct >>=20 >>=20 > To access yourSDT arg struct as a cooked object you may have to = include > fragments of your header including the srtuct in your dtrace script = and > perhaps a copyin() to get it into kernel memory: >=20 > #!/sbin/dtrace -s > struct { > int code; > void* location; > char* description > } err_desc_s; >=20 > pid$target:::myERRORprobe > { > this->f =3D(struct err_desc_s*) copyin( arg1, sizeof ( err_desc_s)); > print( this->f); > } > _______________________________________________ > 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"