From owner-freebsd-questions@freebsd.org Fri Mar 29 23:19:02 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4E7C215567FB for ; Fri, 29 Mar 2019 23:19:02 +0000 (UTC) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from be-well.ilk.org (be-well.ilk.org [23.30.133.173]) by mx1.freebsd.org (Postfix) with ESMTP id BA080872DE for ; Fri, 29 Mar 2019 23:19:01 +0000 (UTC) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from lowell-desk.be-well.ilk.org (router.lan [172.30.250.2]) by be-well.ilk.org (Postfix) with ESMTP id 4B0FF33C0B for ; Fri, 29 Mar 2019 19:18:56 -0400 (EDT) Received: by lowell-desk.be-well.ilk.org (Postfix, from userid 1147) id 9696B156E423; Fri, 29 Mar 2019 19:18:54 -0400 (EDT) From: Lowell Gilbert To: freebsd-questions@freebsd.org Subject: Re: Was PCC ever considered? References: Date: Fri, 29 Mar 2019 19:18:54 -0400 In-Reply-To: (Mayuresh Kathe's message of "Fri, 29 Mar 2019 02:07:05 +0530") Message-ID: <44imw19sm9.fsf@be-well.ilk.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: BA080872DE X-Spamd-Bar: +++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [3.87 / 15.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.84)[0.836,0]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_NONE(0.00)[]; MX_GOOD(-0.01)[cached: be-well.ilk.org]; NEURAL_SPAM_LONG(0.92)[0.922,0]; DMARC_NA(0.00)[ilk.org]; NEURAL_SPAM_MEDIUM(0.08)[0.080,0]; R_SPF_NA(0.00)[]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:7922, ipnet:23.30.0.0/15, country:US]; MID_RHS_MATCH_FROM(0.00)[]; IP_SCORE(0.04)[ip: (0.09), ipnet: 23.30.0.0/15(0.07), asn: 7922(0.10), country: US(-0.07)] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Mar 2019 23:19:02 -0000 Mayuresh Kathe writes: > Since FreeBSD uses Clang/LLVM (which is kind-a huge) I wondered if PCC > was ever considered during the GCC days or even while contemplating > the switch to Clang/LLVM. > > If PCC was considered but rejected, may I know the reasons and > rationale for the same? The standard compiler for a POSIX system has to be able to build its kernel. PCC has never come close to being able to do that on *any* operating system with which I am familiar.