From owner-freebsd-questions@freebsd.org Sat Jun 20 03:49:53 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 3DCF2344D5B for ; Sat, 20 Jun 2020 03:49:53 +0000 (UTC) (envelope-from jguojun@gmail.com) Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49phWh0FNdz4GkQ for ; Sat, 20 Jun 2020 03:49:51 +0000 (UTC) (envelope-from jguojun@gmail.com) Received: by mail-qk1-x741.google.com with SMTP id w1so10957430qkw.5 for ; Fri, 19 Jun 2020 20:49:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=to:from:subject:message-id:date:user-agent:mime-version :content-transfer-encoding:content-language; bh=W15uQpkGAFIBgsPSlp8JhCerAY2rN7MIlU+nEIpu0YE=; b=BQnRQZuyFworbxW05SzgaCx8UFlQ0Q5txzvS44cE7SX+T/MFp/krqxQL2pJG5loJ16 j2gZPsig+EzaMevlFtHRdJ7CFcVkL1USGq7eiW2jduNRSWSZCZAlDy4VkCNH348QrrLB EkIFJeVhBITkalc/BFPuQG6OZscl63AhONS9eZtO9Iy/VGMPP60b+o0zPzU2Tc54BsJo RGIMpchZ0btaqdolHC8E/INjB5CMJcIrVEZSq5gAtfsnY8LylNT0E98oj64+M8Ol+9oW RK7KR1n6OvN4y4/44cEVAPdo/4Zc3ZphQmyGq3yKC9SVMKPrKIckeQSMSz/1H22TNOmY 5kgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-transfer-encoding:content-language; bh=W15uQpkGAFIBgsPSlp8JhCerAY2rN7MIlU+nEIpu0YE=; b=KBd55O/LhQRfhY3eV5DtYnyRYflOqLp1sMfnjj/KmikU+/PvxKC0gjEmzGP2vtMWaB Bu+l/XIMs66ePT707Q2alT2po9j2y9jTPrewFJpS/khiojBEZak94gkiReT9ktkzlEys GttlDUffp2upArchw0Nd7LdO+sfFgBn/07Ic09sfZqr48i8xAolTGfhDysceSuqEGANj f9SCYLZ65qZwQvnjsGdmCFf+7e/qvpgMCH+ORRPuvVdegB1dNXNgL0Cxakf7ZEbkF7pi 9b2nqWnysEj2jH0I66NYxwbUaOfOZr18g+RLEhEfCBmZ9o+fdqQz0XR8d+qvhd/RbpPx Ld+A== X-Gm-Message-State: AOAM530Ffia6zdbAGXNMX1XlZqX/udJ90ZUfZv0UaEhF8GXZ5MK+RRjM hWrAm1Me9sqeZZwVogLyYVVbogSSPQ== X-Google-Smtp-Source: ABdhPJz1IUI3/NRDOsb4J017wXr6Qunn8AipvqbwNajyhYpphUymQuWhbeipV+3sUAOnpbBoDgjSYg== X-Received: by 2002:a05:620a:946:: with SMTP id w6mr6442777qkw.75.1592624990981; Fri, 19 Jun 2020 20:49:50 -0700 (PDT) Received: from [192.168.1.82] (162-239-0-170.lightspeed.sntcca.sbcglobal.net. [162.239.0.170]) by smtp.gmail.com with ESMTPSA id v28sm3662087qkv.31.2020.06.19.20.49.50 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Jun 2020 20:49:50 -0700 (PDT) To: freebsd-questions@freebsd.org From: "Jin Guojun[VFF]" Subject: Why clang/cc needs libgcc_s in 11.4-R Message-ID: Date: Fri, 19 Jun 2020 20:49:38 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 49phWh0FNdz4GkQ X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=BQnRQZuy; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of jguojun@gmail.com designates 2607:f8b0:4864:20::741 as permitted sender) smtp.mailfrom=jguojun@gmail.com X-Spamd-Result: default: False [-3.32 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; NEURAL_HAM_MEDIUM(-0.96)[-0.960]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.02)[-1.019]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::741:from]; NEURAL_HAM_SHORT(-0.34)[-0.339]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 Jun 2020 03:49:53 -0000 Just installed 11.4-R and try to build a shared library by passing relocation flag from cc -Wl,-r to ld, but ld complains -lgcc_s not found: FBSD11: cc -Wl,-r -o libpixrect.so `lorder rast_mem.so rast_dump.so | tsort` /usr/bin/ld: cannot find -lgcc_s cc: error: linker command failed with exit code 1 (use -v to see invocation) FBSD11: cc -Wl,-r,-v -v -o libpixrect.so `lorder rast_mem.so rast_dump.so | tsort` FreeBSD clang version 10.0.0 (git@github.com:llvm/llvm-project.git llvmorg-10.0.0-0-gd32170dbd5b) Target: x86_64-unknown-freebsd11.4 Thread model: posix InstalledDir: /usr/bin  "/usr/bin/ld" --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o libpixrect.so /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/lib -r -v rast_dump.so rast_mem.so -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/crtend.o /usr/lib/crtn.o GNU ld 2.17.50 [FreeBSD] 2007-07-03 /usr/bin/ld: cannot find -lgcc_s Why clang depends on gcc library? Is any flag or ENV variable can overwrite this requirement? If not, where can I get the libgcc_s? Thanks in advance, -Jin