From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by sourceware.org (Postfix) with ESMTPS id B76BF38845A9 for ; Thu, 1 Sep 2022 09:41:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B76BF38845A9 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pj1-x1035.google.com with SMTP id l5so12731862pjy.5 for ; Thu, 01 Sep 2022 02:41:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:to:subject:from:user-agent:mime-version :date:message-id:from:to:cc; bh=X51ZaHiJahns1MTOBc8bJikZckvrVjxsuMOq9HVkbh4=; b=Rd0U/XWs2ziKUF3xEi1zfi/kTHGJFajmC+zV1el1OKtOrx5JeUugOvFCFOF/5YMv7+ 5mttKQo4VPnZ336QEItHTnH5qYOxKw0uUGVgns8DmLkppVRwRx65n929DzFm1HG/Up3Q WCoiszWnZqzvDC9uOZjqcvWVRehSSxRY4C2HX1Y3biJSQHmtoqaGGSmC4jSwa9fTmlVu 19U8gLO/3uERVuAe0SskNGexX9e0qxaQiuoPBXmsF7HGsDlgvJc8MtypueTQp2BWrU+0 tLCXnfcXVpbA3smesrbcYmwSKkFDatT6n6RLaeM8lKqQ2rOVbHnSmm4aWDotmm0jKWm6 +dCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:to:subject:from:user-agent:mime-version :date:message-id:x-gm-message-state:from:to:cc; bh=X51ZaHiJahns1MTOBc8bJikZckvrVjxsuMOq9HVkbh4=; b=gR7VgpkxqouZjd1Es7I+2baAY8gQvnqSW1+WgYyeOZi8tX2Yvi4YnlwlzGf2ltBOxR ZSfJrs6dPFyP2OC80p6xlQbMAvpxivqDqX02ytpDy+PwMDZ1XHgn/8AKGkYrYCOeVEGt GKCO48so10zlyTdtHmyeLsLHgwt3uT9Ifd6Lf+ksvzR76+rf+SB/z+UAnxyQbyExr7Nh AP72qLWa8frhwx72ZS1eO0TAY7I9sDhtkkN0+5Hq34+rNdwRdu0H6FS1M1E9ykT1kr0O bHNQ4gLrN2S5aUsJBmJxQOzS41/aBdzOChgQAD/p9LAblyQnqA46KNkj/1YGDz7owKpf gwZw== X-Gm-Message-State: ACgBeo0uAnA/hydDXo+Lb9V6nt8iaRDaREj+p5aNOmwIH0Mhx1bwH0ZA 1jvOiPEmwACsxhVolta3dplbyvUI0lpuk95c X-Google-Smtp-Source: AA6agR7wAY+G0U/1kI8fJTy0hjvRvk8MLQ7Bx4jGD9oWwoguvhsnK3bueT5TPE+KcudfOe8ZqbMwiA== X-Received: by 2002:a17:90a:cb94:b0:1fd:86fe:ba3e with SMTP id a20-20020a17090acb9400b001fd86feba3emr7816478pju.240.1662025305223; Thu, 01 Sep 2022 02:41:45 -0700 (PDT) Received: from [7.249.249.8] ([119.3.119.19]) by smtp.gmail.com with ESMTPSA id a19-20020a170902ee9300b0016d773aae60sm8955070pld.19.2022.09.01.02.41.42 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 01 Sep 2022 02:41:44 -0700 (PDT) Message-ID: <3f822786-189c-1c45-9415-be3f1abe916b@gmail.com> Date: Thu, 1 Sep 2022 17:41:39 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 From: Lv Ying Subject: ldconfig is statically linked or dynamiclly linked To: libc-help@sourceware.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00,BODY_8BITS,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi all:     I am confused when exec file ldconfig and ldd ldconfig on CentOS 8(glibc-2.28): # which ldconfig /usr/sbin/ldconfig # file /usr/sbin/ldconfig /usr/sbin/ldconfig: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, for GNU/Linux 3.2.0, BuildID[sha1]=90ddd9a3e194fb2ec4edd5184d9fca4df45af636, not stripped # ldd /usr/sbin/ldconfig     statically linked So ldconfig is dynamiclly linked or statically linked? I lookup elf/Makefile: ifeq (yes,$(use-ldconfig)) ifeq (yes,$(build-shared)) others-static   += ldconfig others          += ldconfig install-rootsbin += ldconfig I think ldconfig may be statically linked, and can ldconfig be only statically linked?