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Thu, 18 May 2023 08:01:02 -0700 (PDT) MIME-Version: 1.0 References: <2d953bd2-6544-3357-1424-fa44731e2bf5@efficios.com> <2f8ea79e-9515-854b-d3b0-707baba60b92@efficios.com> In-Reply-To: <2f8ea79e-9515-854b-d3b0-707baba60b92@efficios.com> Date: Thu, 18 May 2023 11:00:51 -0400 Message-ID: To: Mathieu Desnoyers Cc: lttng-dev@lists.lttng.org Subject: Re: [lttng-dev] Trying to understand use of lttng enable-event --kernel --userspace-probe= X-BeenThere: lttng-dev@lists.lttng.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: LTTng development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Brian Hutchinson via lttng-dev Reply-To: Brian Hutchinson Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" T24gVGh1LCBNYXkgMTgsIDIwMjMgYXQgMTA6NDXigK9BTSBNYXRoaWV1IERlc25veWVycwo8bWF0 aGlldS5kZXNub3llcnNAZWZmaWNpb3MuY29tPiB3cm90ZToKPgo+IE9uIDIwMjMtMDUtMTggMTA6 MTAsIEJyaWFuIEh1dGNoaW5zb24gd3JvdGU6Cj4gWy4uLl0KPiA+IEkgdXBkYXRlZCBteSBoZWxs byB3b3JsZCB0byBoYXZlIGEgZnVuY3Rpb24gSSdkIGxpa2UgdG8gdXNlIHRoZQo+ID4gLS11c2Vy c3BhY2UtcHJvYmUgbWV0aG9kIG9uIHdpdGggdGhlIHZlcnkgb3JpZ2luYWwgbmFtZSBvZgo+ID4g J3Byb2JlX2Z1bmN0aW9uJzoKPiA+Cj4gPiAjaW5jbHVkZSA8c3RkaW8uaD4KPiA+ICNpbmNsdWRl IDxsdHRuZy90cmFjZWYuaD4KPiA+Cj4gPiB2b2lkIHByb2JlX2Z1bmN0aW9uKGludCBpKTsKPiA+ Cj4gPiBpbnQgbWFpbihpbnQgYXJnYywgY2hhciAqYXJndltdKQo+ID4gewo+ID4gICAgIHVuc2ln bmVkIGludCBpOwo+ID4gICAgIHB1dHMoIkhlbGxvLCBXb3JsZCFcblByZXNzIEVudGVyIHRvIGNv bnRpbnVlLi4uIik7Cj4gPiAgICAgLyoKPiA+ICAgICAgKiBUaGUgZm9sbG93aW5nIGdldGNoYXIo KSBjYWxsIG9ubHkgZXhpc3RzIGZvciB0aGUgcHVycG9zZSBvZiB0aGlzCj4gPiAgICAgICogZGVt b25zdHJhdGlvbiwgdG8gcGF1c2UgdGhlIGFwcGxpY2F0aW9uIGluIG9yZGVyIGZvciB5b3UgdG8g aGF2ZQo+ID4gICAgICAqIHRpbWUgdG8gbGlzdCBpdHMgdHJhY2Vwb2ludHMuIFlvdSBkb24ndCBu ZWVkIGl0IG90aGVyd2lzZS4KPiA+ICAgICAgKi8KPiA+ICAgICBnZXRjaGFyKCk7Cj4gPgo+ID4g ICAgIGx0dG5nX3VzdF90cmFjZWYoIk51bWJlciAlZCwgc3RyaW5nICVzIiwgMjMsICJoaSB0aGVy ZSEiKTsKPiA+ICAgICBwcmludGYoIk51bWJlciAlZCwgc3RyaW5nICVzIiwgMjMsICJoaSB0aGVy ZSEiKTsKPiA+Cj4gPiAgICAgZm9yIChpID0gMDsgaSA8IGFyZ2M7IGkrKykgewo+ID4gICAgICAg ICBsdHRuZ191c3RfdHJhY2VmKCJOdW1iZXIgJWQsIGFyZ3YgJXMiLCBpLCBhcmd2W2ldKTsKPiA+ ICAgICAgICAgcHJpbnRmKCJOdW1iZXIgJWQsIGFyZ3YgJXMiLCBpLCBhcmd2W2ldKTsKPiA+ICAg ICB9Cj4gPgo+ID4gICAgIHB1dHMoIlF1aXR0aW5nIG5vdyEiKTsKPiA+Cj4gPiAgICAgcHJvYmVf ZnVuY3Rpb24oaSk7Cj4gPgo+ID4gICAgIHJldHVybiAwOwo+ID4gfQo+ID4KPiA+IHZvaWQgcHJv YmVfZnVuY3Rpb24oaW50IGkpIHsKPiA+Cj4gPiAgICAgbHR0bmdfdXN0X3RyYWNlZigiTnVtYmVy ICVkLCBzdHJpbmcgJXMiLCBpICogaSwgImleMiIpOwo+ID4gICAgIHByaW50ZigiTnVtYmVyICVk LCBzdHJpbmcgJXMiLCBpICogaSwgImleMiIpOwo+ID4KPiA+IH0KPiA+Cj4gPiAuLi4gYW5kIEkg Z2V0IHRoZSBzYW1lIGVycm9yIGFzIGJlZm9yZSB3aGVuIEkgdHJ5IHRvIGVuYWJsZSB0aGUgcHJv YmU6Cj4gPiAjIGx0dG5nIGVuYWJsZS1ldmVudCAtLWtlcm5lbAo+ID4gLS11c2Vyc3BhY2UtcHJv YmU9L3Vzci9sb2NhbC9iaW4vaGVsbG86cHJvYmVfZnVuY3Rpb24KPiA+IEVycm9yOiBNaXNzaW5n IGV2ZW50IG5hbWUocykuCj4KPiBBcyB0aGUgZXJyb3Igc3RhdGVzLCB5b3UgYXJlIG1pc3Npbmcg dGhlIGV2ZW50IG5hbWUuIFNlZQo+Cj4gbWFuIDEgbHR0bmctZW5hYmxlLWV2ZW50Cj4KPiAgICAg ICAgIGx0dG5nIFtHRU5FUkFMIE9QVElPTlNdIGVuYWJsZS1ldmVudCAtLWtlcm5lbAo+ICAgICAg ICAgICAgICAgWy0tcHJvYmU9U09VUkNFIHwgLS1mdW5jdGlvbj1TT1VSQ0UgfCAtLXN5c2NhbGwg fAo+ICAgICAgICAgICAgICAgIC0tdXNlcnNwYWNlLXByb2JlPVNPVVJDRV0KPiAgICAgICAgICAg ICAgIFstLWZpbHRlcj1FWFBSXSBbLS1zZXNzaW9uPVNFU1NJT05dCj4gICAgICAgICAgICAgICBb LS1jaGFubmVsPUNIQU5ORUxdIEVWRU5UWyxFVkVOVF0uLi4KPgo+Cj4gWW91IHdpbGwgd2FudCBz b21ldGhpbmcgbGlrZToKPgo+IGx0dG5nIGVuYWJsZS1ldmVudCAtLWtlcm5lbCAtLXVzZXJzcGFj ZS1wcm9iZT0vdXNyL2xvY2FsL2Jpbi9oZWxsbzpwcm9iZV9mdW5jdGlvbiBteV9wcm9iZV9mdW5j dGlvbgo+Cj4gV2hlcmUgIm15X3Byb2JlX2Z1bmN0aW9uIiBpcyB0aGUgZXZlbnQgbmFtZSB0aGF0 IHdpbGwgYXBwZWFyIGluIHRoZSBjb2xsZWN0ZWQgdHJhY2VzLgoKV293ISAgSSBtdXN0IG5vdCBo YXZlIHdva2VuIHVwIHRoaXMgbW9ybmluZyBoYSwgaGEuICBUaGFua3MgZm9yIHRoYXQhClRoZSBl dmVudCBpcyBlbmFibGVkIG5vdy4gIEhvcGUgdG8gYWN0dWFsbHkgZ2V0IHRyYWNpbmcgZGF0YSBu b3cuCgpSZWdhcmRzLAoKQnJpYW4KCj4KPiBUaGFua3MsCj4KPiBNYXRoaWV1Cj4KPiAtLQo+IE1h dGhpZXUgRGVzbm95ZXJzCj4gRWZmaWNpT1MgSW5jLgo+IGh0dHBzOi8vd3d3LmVmZmljaW9zLmNv bQo+Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmx0dG5n LWRldiBtYWlsaW5nIGxpc3QKbHR0bmctZGV2QGxpc3RzLmx0dG5nLm9yZwpodHRwczovL2xpc3Rz Lmx0dG5nLm9yZy9jZ2ktYmluL21haWxtYW4vbGlzdGluZm8vbHR0bmctZGV2Cg==