From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: from second.openwall.net (second.openwall.net [193.110.157.125]) by inbox.vuxu.org (Postfix) with SMTP id 0CE522471E for ; Wed, 14 Feb 2024 14:41:58 +0100 (CET) Received: (qmail 13973 invoked by uid 550); 14 Feb 2024 13:38:53 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 13938 invoked from network); 14 Feb 2024 13:38:53 -0000 Date: Wed, 14 Feb 2024 13:32:13 +0000 (UTC) From: Thorsten Glaser X-X-Sender: tg@herc.mirbsd.org To: musl@lists.openwall.com In-Reply-To: Message-ID: References: <20240212184236.GZ4163@brightrain.aerifal.cx> <20240212224657.GA4163@brightrain.aerifal.cx> <20240213020834.GB4163@brightrain.aerifal.cx> <20240214021925.GC4163@brightrain.aerifal.cx> Content-Language: de-Zsym-DE-1901-u-em-text-rg-denw-tz-utc, en-Zsym-GB-u-cu-eur-em-text-fw-mon-hc-h23-ms-metric-mu-celsius-rg-denw-tz-utc-va-posix MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Subject: Re: [musl] PAC/BTI Support on aarch64 Markus Wichmann dixit: >According to Intel, the ENDBR64 instruction decodes as NOP on older >processors. That=E2=80=99s unfortunately only true for processors manufactored by Intel= =2E There exist 686-class CPUs that don=E2=80=99t handle these and other long n= ops so it=E2=80=99s best omitted on generic, as in not -march=3Dnative, builds. bye, //mirabilos --=20 15:41=E2=8E=9C Somebody write a testsuite for hello= world :-)