From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 34634 invoked by alias); 3 Oct 2018 00:34:14 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 34623 invoked by uid 89); 3 Oct 2018 00:34:14 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,MIME_BASE64_BLANKS,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=dive, company X-HELO: NAM04-SN1-obe.outbound.protection.outlook.com Received: from mail-eopbgr700126.outbound.protection.outlook.com (HELO NAM04-SN1-obe.outbound.protection.outlook.com) (40.107.70.126) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 03 Oct 2018 00:34:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=impinj.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; 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received-spf: None (protection.outlook.com: impinj.com does not designate permitted sender hosts) Content-Type: text/plain; charset="utf-8" Content-ID: <8380843D73745C46B8663C7EF7B51BFD@namprd06.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-SW-Source: 2018-10/txt/msg00060.txt.bz2 T24gVHVlLCAyMDE4LTEwLTAyIGF0IDEzOjE5IC0wNDAwLCBTaW1vbiBNYXJj aGkgd3JvdGU6DQo+IE9uIDIwMTgtMTAtMDEgMTg6MDUsIFRyZW50IFBpZXBo byB3cm90ZToNCj4gPiA+IEluIHRoZSBtYW51YWwsIGhvd2V2ZXIsIGluIHRh YmxlICJUYWJsZSBBNS0yMCBMb2FkIGJ5dGUsIG1lbW9yeSANCj4gPiA+IGhp bnRzIiwgc29tZSBlbmNvZGluZ3Mgd2l0aA0KPiA+ID4gUnQgPT0gMGIxMTEx IGRlY29kZSB0byAiVU5QUkVESUNUQUJMRSIuICBTaG91bGQgdGhlIHJlY29y ZCBmYWlsIGZvciANCj4gPiA+IHRob3NlPyAgSSB0aGluayBjdXJyZW50bHkN Cj4gPiA+IHdpdGggeW91ciBwYXRjaCB3ZSB3aWxsIGFjY2VwdCB0aGVtLiAg SSBhbSB0aGlua2luZyBpdCB3b3VsZCBiZSBnb29kIA0KPiA+ID4gdG8gZmFp bCwgYmVjYXVzZSBzaW5jZQ0KPiA+ID4gd2UgY2FuJ3Qga25vdyB0aGUgc2lk ZSBlZmZlY3RzIG9mIHN1Y2ggaW5zdHJ1Y3Rpb24sIHdlIHJpc2sgc2hvd2lu ZyANCj4gPiA+IHNvbWUgZmFsc2UgaW5mb3JtYXRpb24gaWYNCj4gPiA+IHdl IGp1c3QgYXNzdW1lIG5vdGhpbmcgaGFzIGNoYW5nZWQuDQo+ID4gDQo+ID4g DQo+ID4gUmF0aGVyIHRoYW4gdGhpcywgSSB1c2VkIHRoZSB0aHVtYjIgc3Vw cGxlbWVudCBJIGZvdW5kIGhlcmU6IGh0dHA6Ly9oZXINCj4gPiBtZXMud2lu Z3MuY3Mud2lzYy5lZHUvZmlsZXMvVGh1bWItMlN1cHBsZW1lbnRSZWZlcmVu Y2VNYW51YWwucGRmDQo+ID4gDQo+ID4gU2VjdGlvbiAzLjMuMyBoYWQgdGhl IG1vc3QgdXNlZnVsIHRhYmxlIGFuZCBleGhhdXN0aXZlIGxpc3Qgb2YgcG9z c2libGUNCj4gPiBlbmNvZGluZ3MgZm9yIHRoaXMgdHlwZSBvZiB0aHVtYjIg aW5zdHJ1Y3Rpb24uDQo+IA0KPiBOb3Qgc3VyZSB3aGljaCBzZWN0aW9uIDMu My4zIHlvdSBhcmUgcmVmZXJyaW5nIHRvLiAgQnV0IEkgbXVzdCBoYXZlIGJl ZW4gDQo+IHVzaW5nIGFuIG91dGRhdGVkIHZlcnNpb24gb2YgdGhlIG1hbnVh bCwgaW4gdGhlIHZlcnNpb24geW91IGxpbmtlZCB0aGVyZSANCj4gaXMgaW5k ZWVkIG5vIHVucHJlZGljdGFibGUgZW5jb2RpbmdzLg0KDQpUaGUgVGh1bWIt MlN1cHBsZW1lbnRSZWZlcmVuY2VNYW51YWwucGRmIGZpbGUgKGxpbmsgYWJv dmUsIDFzdCBnb29nbGUNCmhpdCBmb3IgZmlsZSBuYW1lKS4gIEl0J3Mgbm90 IGEgZnVsbCBtYW51YWwsIGp1c3QgYSB0aHVtYjIgZGVzY3JpcHRpb24uDQog SSBmb3VuZCB0aGUgb3JnYW5pemF0aW9uIG9mIHRoZSB0aHVtYjIgZGVjb2Rp bmcgdGFibGVzIG1vcmUgdXNlZnVsIGluDQp0aGF0IG9uZSB0aGFuIGluIHRo ZSBvdGhlciBtYW51YWwsIHRoZSBmdWxsIG1hbnVhbCBvbiBBUk0ncyBzaXRl Lg0KDQo+ID4gPiBJZiB5b3UgYXJlIG1vdGl2YXRlZCwgaXQgd291bGQgYmUg bmljZSB0byBhZGQgYSB0ZXN0IGZvciB0aGlzIA0KPiA+ID4gaW5zdHJ1Y3Rp b24gaW4gYXJtX3JlY29yZF90ZXN0LA0KPiA+ID4gYnV0IEkgd29uJ3QgcmVx dWlyZSBpdCwgc2luY2UgdGhlIGN1cnJlbnQgc3RhdGUgaXMgdGhhdCB0aGlz IHRlc3QgDQo+ID4gPiBpc24ndCBtZWFudCB0byB0ZXN0IGFsbA0KPiA+ID4g cG9zc2libGUgaW5zdHJ1Y3Rpb24sIGFuZCBJIGRvbid0IHdhbnQgdG8gaW1w b3NlIHRoYXQgYnVyZGVuIG9uIHlvdS4NCj4gPiANCj4gPiBJIG1pZ2h0IHRo YXQgYmUgVEhBVCBtb3RpdmF0ZWQsIHNpbmNlIEkndmUgbmV2ZXIgZXZlbiB1 c2VkIHRoYXQgdGVzdA0KPiA+IGZlYXR1cmUuDQo+IA0KPiBFcnIgSSdtIG5v dCBzdXJlIGlmIHlvdSB5b3UgbWVhbnQgdGhhdCB5b3UgYXJlIHRoYXQgbW90 aXZhdGVkLCBvciB5b3UgDQo+IGFyZSBfbm90XyB0aGF0IG1vdGl2YXRlZC4g IEluIGNhc2UgeW91IGFyZSwgSSdsbCBiZSBoYXBweSB0byBwcm92aWRlIGFu eSANCj4gaGVscCB5b3Ugd291bGQgbmVlZCA6KS4NCg0KU29ycnksIG5vdCB0 aGF0IG1vdGl2YXRlZC4gIEkgd2FudGVkIHRvIG1ha2UgcmV2ZXJzZSBkZWJ1 Z2dpbmcgd29yayBvbg0KQVJNLCBhbmQgaXQgd29ya3MgZm9yIG1lIG5vdy4g IERvbid0IHJlYWxseSB3YW50IHRvIGRpdmUgaW50byBhZGRpbmcNCm1vcmUg dG8gdGhlIHNlbGYgdGVzdHMsIHdoaWNoIEkndmUgbmV2ZXIgdXNlZC4gIFRo ZXJlJ3MgcmVhbGx5IG5vIGNhbGwNCnRvIGRvIHRoYXQgb24gY29tcGFueSB0 aW1lIGFueXdheSwgd2hpbGUgZm9yIHJldmVyc2UgZGVidWdnaW5nIHRoZXJl DQp3YXMuDQo= >From gdb-patches-return-151343-listarch-gdb-patches=sources.redhat.com@sourceware.org Wed Oct 03 01:01:39 2018 Return-Path: Delivered-To: listarch-gdb-patches@sources.redhat.com Received: (qmail 98453 invoked by alias); 3 Oct 2018 01:01:39 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 98399 invoked by uid 89); 3 Oct 2018 01:01:32 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,TIME_LIMIT_EXCEEDED autolearn=unavailable version=3.3.2 spammy=solely, arrive X-HELO: NAM02-BL2-obe.outbound.protection.outlook.com Received: from mail-bl2nam02on0124.outbound.protection.outlook.com (HELO NAM02-BL2-obe.outbound.protection.outlook.com) (104.47.38.124) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 03 Oct 2018 01:01:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=impinj.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; 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3 Oct 2018 01:11:34 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 105483 invoked by uid 89); 3 Oct 2018 01:11:33 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: mail-ot1-f68.google.com Received: from mail-ot1-f68.google.com (HELO mail-ot1-f68.google.com) (209.85.210.68) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 03 Oct 2018 01:11:32 +0000 Received: by mail-ot1-f68.google.com with SMTP id m23-v6so3929731otf.0 for ; Tue, 02 Oct 2018 18:11:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=fEs6TY9O2mxvFtxP8a2rLPZPKd8KVSnBnsq/+gYkVng=; b=dR6ygiKXflDfoP5K7o2XWqU3n8rO/rLIaBJtPMG96XhEQQ1W8l7jhBoQPfH1w7V6R1 QkaQUYBHtNZYChO90w96UhtZzhhnU9W3uR+kNM8U0fVW4rbHH58o87UokS/qujryVsb9 epCwyn6x5of7Xd70LEoxQZiS7VUe/TjLBEuT2C7nsQrV1RVVUzYwK1uQP80rKtmMmPIA 5GlWWVB5WAY3uw+AleZrwC8UtwldGLATB5WrCzwv6icD/cUAfX50Wd7N8xYvzNHhl1gn bz9iX4MSb0kVTlle9zKi8vuQ6tcqrN582yYSZbgQYnDV7VOhLznhWnFxVGHf1Nhroodv HnZw== MIME-Version: 1.0 References: <20180921003827.1525-1-pierre.marsais@lse.epita.fr> <20181002235548.16030-1-pierre.marsais@lse.epita.fr> In-Reply-To: <20181002235548.16030-1-pierre.marsais@lse.epita.fr> From: "H.J. Lu" Date: Wed, 03 Oct 2018 01:11:00 -0000 Message-ID: Subject: Re: [PATCH v3] Add support for recording xsave x86 instruction To: pierre.marsais@lse.epita.fr Cc: GDB Content-Type: text/plain; charset="UTF-8" X-IsSubscribed: yes X-SW-Source: 2018-10/txt/msg00062.txt.bz2 Content-length: 1224 On Tue, Oct 2, 2018 at 4:56 PM Pierre Marsais wrote: > > Latest version of glibc's ld.so use the xsave instruction in the > resolver. This breaks gdb record when calling shared libraries: > > ``` > $ gcc -o fail -ggdb -x c - < #include > > int main() { > exit(0); > } > EOF > $ gdb ./fail > Reading symbols from ./fail...done. > (gdb) b main > Breakpoint 1 at 0x113d: file , line 4. > (gdb) r > Starting program: /tmp/fail > > Breakpoint 1, main () at :4 > 4 : No such file or directory. > (gdb) record > (gdb) c > Continuing. > Process record does not support instruction 0xfae64 at address > 0x7ffff7fe96dc. > ``` > > In order to record xsave instructions, we record the from the beginning > of the XSAVE area to the end of the last state component in the Request > Feature Bitmap (whose value is XCR0 & EDX:EAX). At the moment we don't > account for non requested state component within the XSAVE area. > > gdb/ChangeLog: > 2018-09-21 Pierre Marsais > > * i386-tdep.c: (i386_process_record): Handle xsave instruction. > Don't you also need to handle xsavec since ld.so uses if it is usable? H.J.