From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ciao.gmane.io (ciao.gmane.io [116.202.254.214]) by sourceware.org (Postfix) with ESMTPS id 6D93F3858C36 for ; Thu, 7 Mar 2024 16:50:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6D93F3858C36 Authentication-Results: sourceware.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=m.gmane-mx.org ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 6D93F3858C36 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=116.202.254.214 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709830232; cv=none; b=rk1yCRQm2AYQCIO7Ga7rsI5oXk0u6SpNOVVEqg164gidGp7SISD1WUzrFySKpLxvr/8dCQGzJo+N5hlSL8FNgICg6OSQfYTFHDT0rHIQNVm+hksRTgvlLG1TFoxH763/8WZdMlajB1jW0GOxyGmY/VH2/avxnAv2u43ms3gsyv0= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709830232; c=relaxed/simple; bh=bHNC//VHLFbAnxpQmcTZQkNdzKAmyoA0ewa/BYCuJFs=; h=To:From:Subject:Date:Message-ID:Mime-Version; b=G3oGrOYdKiveItZ+Xh3csJyplCdZA8jIUochgaXKNvCF7l4BSyaZV7nzfgHNuGM06wtrp4OBD60ZQZdYxg3iUl6OSL5wXZLOJe9lLWiJ+6riSGs3SxKcM/wGObmyedsWdGq26f80Wa+LlOlCF13UOzLu/1b01B/HMmSkGCeEaFU= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1riGwv-0006Dv-RE for gcc-help@gcc.gnu.org; Thu, 07 Mar 2024 17:50:29 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: gcc-help@gcc.gnu.org From: Christer Solskogen Subject: Re: mfix-cortex-a53 Date: Thu, 7 Mar 2024 17:50:22 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla Thunderbird Content-Language: en-US In-Reply-To: X-Spam-Status: No, score=1.9 required=5.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FORGED_MUA_MOZILLA,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,KAM_DMARC_STATUS,KAM_NUMSUBJECT,NML_ADSP_CUSTOM_MED,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 3/7/2024 4:01 PM, Kyrylo Tkachov via Gcc-help wrote: > Hello, > >> -----Original Message----- >> From: Gcc-help On >> Behalf Of Christer Solskogen via Gcc-help >> Sent: Monday, March 4, 2024 1:09 PM >> To: gcc-help@gcc.gnu.org >> Subject: mfix-cortex-a53 >> >> The mfix-cortex-a53 options(-mfix-cortex-a53-835769 / >> -mno-fix-cortex-a53-835769 and -mfix-cortex-a53-843419/ >> -mno-fix-cortex-a53-843419), which of them are used by default? I mean, >> when none of them are used. > > By default the fixes will not be applied i.e. the behaviour will be equivalent to -mno-fix-cortex-a53-835769 and -mno-fix-cortex-a53-843419. > However, you (or your compiler vendor) can configure GCC during GCC compile time with the --enable-fix-cortex-a53-843419 or --enable-fix-cortex-a53-835769 options. > In that case the fixes will be applied automatically i.e. behave as if -mfix-cortex-a53-843419 or -mfix-cortex-a53-835769 were specified. > You can find out if your GCC distribution enables these configuration options automatically by running gcc with the "-v" option, and seeing if any of those two --enable-fix* options appear in the configuration options. > Thank you! Are there any good reason for NOT having them enabled? -- chs