From nobody Thu Oct 6 23:22:56 2022 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Mk6td369jz4dld0 for ; Thu, 6 Oct 2022 23:23:05 +0000 (UTC) (envelope-from george+freebsd@m5p.com) Received: from mailhost.m5p.com (mailhost.m5p.com [74.104.188.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "m5p.com", Issuer "R3" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Mk6tc6Plwz40Jk for ; Thu, 6 Oct 2022 23:23:04 +0000 (UTC) (envelope-from george+freebsd@m5p.com) Received: from [IPV6:2001:470:1f07:15ff::26] (court.m5p.com [IPv6:2001:470:1f07:15ff:0:0:0:26]) (authenticated bits=0) by mailhost.m5p.com (8.16.1/8.15.2) with ESMTPSA id 296NMvoT019764 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Thu, 6 Oct 2022 19:23:03 -0400 (EDT) (envelope-from george+freebsd@m5p.com) Message-ID: Date: Thu, 6 Oct 2022 19:22:56 -0400 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:102.0) Gecko/20100101 Thunderbird/102.3.0 Content-Language: en-US To: FreeBSD Hackers From: George Mitchell Subject: Strange "make buildworld" error Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-0.0 required=10.0 tests=HELO_NO_DOMAIN, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.5 X-Spam-Checker-Version: SpamAssassin 3.4.5 (2021-03-20) on mattapan.m5p.com X-Rspamd-Queue-Id: 4Mk6tc6Plwz40Jk X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of george+freebsd@m5p.com designates 74.104.188.4 as permitted sender) smtp.mailfrom=george+freebsd@m5p.com X-Spamd-Result: default: False [-3.30 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_SPF_ALLOW(-0.20)[+a:c]; MIME_GOOD(-0.10)[text/plain]; MLMMJ_DEST(0.00)[freebsd-hackers@FreeBSD.org]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:701, ipnet:74.104.0.0/16, country:US]; TO_DN_ALL(0.00)[]; TAGGED_FROM(0.00)[freebsd]; MIME_TRACE(0.00)[0:+]; R_DKIM_NA(0.00)[]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DMARC_NA(0.00)[m5p.com]; RCVD_COUNT_TWO(0.00)[2] X-ThisMailContainsUnwantedMimeParts: N On a FreeBSD 12.3-RELEASE-p6, I have updated /usr/src to 13.1-RELEASE. Running "make buildworld" resulted in this error while building shared library libclang_rt.asan-x86_64.so: ld: error: duplicate symbol: __asan::FlushUnneededASanShadowMemory(unsigned long, unsigned long) >>> defined at asan_linux.cpp:118 (/usr/src/contrib/llvm-project/compiler-rt/lib/asan/asan_linux.cpp:118) >>> asan/asan_linux.pico:(__asan::FlushUnneededASanShadowMemory(unsigned long, unsigned long)) >>> defined at asan_poisoning.cpp:65 (/usr/src/contrib/llvm-project/compiler-rt/lib/asan/asan_poisoning.cpp:65) >>> asan/asan_poisoning.pico:(.text+0x530) However, line 65 of asan_poisoning.cpp neither defines nor even references FlushUnneededASanShadowMemory. Instead, it defines AsanPoisonOrUnpoisonIntraObjectRedzone. A complete typescript is here: https://www.m5p.com/~george/FlushUnneededASanShadowMemory.xz I am mystified. -- George