{"id":941,"date":"2021-12-19T11:38:57","date_gmt":"2021-12-19T03:38:57","guid":{"rendered":"https:\/\/blog.cauchyschwarz.com\/?p=941"},"modified":"2021-12-26T16:04:47","modified_gmt":"2021-12-26T08:04:47","slug":"linux%e5%8a%a8%e6%80%81%e5%85%b1%e4%ba%ab%e5%ba%93","status":"publish","type":"post","link":"https:\/\/blog.cauchyschwarz.com\/?p=941","title":{"rendered":"Linux\u52a8\u6001\u5171\u4eab\u5e93"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e10066622ab\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e10066622ab\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=941\/#%E5%85%B1%E4%BA%AB%E5%BA%93%E5%91%BD%E5%90%8D\" >\u5171\u4eab\u5e93\u547d\u540d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=941\/#%E5%8A%A8%E6%80%81%E9%93%BE%E6%8E%A5\" >\u52a8\u6001\u94fe\u63a5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=941\/#ldconfig\" >ldconfig<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=941\/#%E4%BD%BF%E7%94%A8%E5%85%B1%E4%BA%AB%E5%BA%93\" >\u4f7f\u7528\u5171\u4eab\u5e93<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=941\/#%E6%9F%A5%E7%9C%8Bso%E5%BA%93%E7%9A%84%E5%85%B7%E4%BD%93%E7%89%88%E6%9C%AC\" >\u67e5\u770bso\u5e93\u7684\u5177\u4f53\u7248\u672c<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\" id=\"%E5%85%B1%E4%BA%AB%E5%BA%93%E5%91%BD%E5%90%8D\"><span class=\"ez-toc-section\" id=\"%E5%85%B1%E4%BA%AB%E5%BA%93%E5%91%BD%E5%90%8D\"><\/span>\u5171\u4eab\u5e93\u547d\u540d<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>libname.so.x.y.z<\/p>\n\n\n\n<p>lib:\u5171\u4eab\u5e93<br>name:\u5171\u4eab\u5e93\u540d\u79f0<br>so:\u56fa\u5b9a\u540e\u7f00<br>x:\u4e3b\u7248\u672c\u53f7,\u4e0d\u540c\u7684\u7248\u672c\u53f7\u4e4b\u95f4\u4e0d\u517c\u5bb9<br>y:\u6b21\u7248\u672c\u53f7,\u589e\u91cf\u5347\u7ea7\uff0c\u5411\u540e\u517c\u5bb9<br>z:\u53d1\u884c\u7248\u672c\u53f7\uff0c\u5bf9\u5e94\u7248\u672c\u7684\u9519\u8bef\u4fee\u6b63\u548c\u6027\u80fd\u63d0\u5347\uff0c\u4e0d\u5f71\u54cd\u517c\u5bb9\u6027<\/p>\n\n\n\n<p>Linux\u4e2d\u7684\u5171\u4eab\u5e93\u5e76\u4e0d\u90fd\u662f\u8fd9\u6837\u7684\u683c\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Glibc\u7684\u5171\u4eab\u5e93\u547d\u540d\u4e3a\uff1a<a href=\"http:\/\/libc-x.y.z.so\/\">libc-x.y.z.so<\/a><\/li><li>\u52a8\u6001\u94fe\u63a5\u5668\u4e5f\u662fGlibc\u7684\u4e00\u90e8\u5206\uff0c\u4f7f\u7528ld-x.y.z.so\u547d\u540d<\/li><li>libm(\u6570\u5b66\u5e93)\u7b49<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"%E5%8A%A8%E6%80%81%E9%93%BE%E6%8E%A5\"><span class=\"ez-toc-section\" id=\"%E5%8A%A8%E6%80%81%E9%93%BE%E6%8E%A5\"><\/span>\u52a8\u6001\u94fe\u63a5<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>ELF\u6587\u4ef6\u4e2d\u7528SO-NAME\u5b57\u6bb5\u6307\u5b9a\u52a8\u6001\u94fe\u63a5\u5e93\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"ldconfig\"><span class=\"ez-toc-section\" id=\"ldconfig\"><\/span>ldconfig<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>\u5f53\u7cfb\u7edf\u4e2d\u5b89\u88c5\u6216\u8005\u66f4\u65b0\u4e00\u4e2a\u5171\u4eab\u5e93\u7684\u65f6\u5019\u9700\u8981\u66f4\u65b0\u8f6f\u94fe\u63a5\u548c\u52a8\u6001\u94fe\u63a5\u5668\u67e5\u627e\u6587\u4ef6\uff0c\u6b64\u65f6\u5c31\u5e94\u8be5\u6267\u884c<strong>ldconfig<\/strong>\u3002<br>ldconfig\u7684\u4f5c\u7528\u5c31\u662f\u904d\u5386\u6240\u6709\u7684\u4fdd\u5b58\u5171\u4eab\u5e93\u7684\u76ee\u5f55\/lib \/usr\/lib\u7b49\uff0c\u6839\u636e\u5b9e\u9645\u7684\u5171\u4eab\u5e93\u7684\u7248\u672c\u66f4\u65b0\u8f6f\u94fe\u63a5\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"%E4%BD%BF%E7%94%A8%E5%85%B1%E4%BA%AB%E5%BA%93\"><span class=\"ez-toc-section\" id=\"%E4%BD%BF%E7%94%A8%E5%85%B1%E4%BA%AB%E5%BA%93\"><\/span>\u4f7f\u7528\u5171\u4eab\u5e93<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p>\u5728\u7528GCC\u7f16\u8bd1\u7684\u65f6\u5019\u901a\u8fc7-lname\u7684\u65b9\u5f0f\u5373\u53ef\u6307\u5b9a\u8981\u94fe\u63a5\u7684\u52a8\u6001\u5e93\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">gcc -o hello hello.c -lNAME\n<\/code><\/pre>\n\n\n\n<p>\u52a8\u6001\u94fe\u63a5\u5668\u6309\u7167\u4e0b\u5217\u987a\u5e8f\u4f9d\u6b21\u88c5\u8f7d\u6216\u8005\u67e5\u627e\u5171\u4eab\u5bf9\u8c61\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u7531\u73af\u5883\u53d8\u91cfLD_LIBRARY_PATH\u6307\u5b9a\u7684\u8def\u5f84<\/li><li>\u7531\u8def\u5f84\u7f13\u5b58\u6587\u4ef6\/etc\/ld.so.cache\u6307\u5b9a\u7684\u8def\u5f84<\/li><li>\u9ed8\u8ba4\u5171\u4eab\u76ee\u5f55 \u5148\/usr\/lib\u518d\/lib<\/li><\/ol>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"%E6%9F%A5%E7%9C%8Bso%E5%BA%93%E7%9A%84%E5%85%B7%E4%BD%93%E7%89%88%E6%9C%AC\"><span class=\"ez-toc-section\" id=\"%E6%9F%A5%E7%9C%8Bso%E5%BA%93%E7%9A%84%E5%85%B7%E4%BD%93%E7%89%88%E6%9C%AC\"><\/span>\u67e5\u770bso\u5e93\u7684\u5177\u4f53\u7248\u672c<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"bash\" class=\"language-bash\">readelf -d  \/path\/to\/library.so |grep SONAME\n<\/code><\/pre>\n\n\n\n<p><a href=\"https:\/\/stackoverflow.com\/questions\/15836423\/gcc-how-to-add-before-the-default-linker-search-path-by-default-library-path-no\">\u94fe\u63a5\u65f6\u7684<code>-Lxxx<\/code>\u6307\u5b9a\u7684\u5e93\u7684\u8def\u5f84\u662f\u653e\u5728\u6807\u51c6\u7684\u94fe\u63a5\u641c\u7d22\u8def\u5f84\u4e4b\u540e\u7684\uff0c\u6240\u4ee5\u5982\u679c\u7cfb\u7edf\u4e0a\u5df2\u7ecf\u88c5\u4e86\u76f8\u5173\u7684\u5e93\uff0c\u94fe\u63a5\u65f6\u4f1a\u4f18\u5148\u4f7f\u7528\u7cfb\u7edf\u4e0a\u5df2\u7ecf\u88c5\u4e86\u7684\u5e93\uff0c\u81ea\u5df1\u8bbe\u7f6e\u7684<code>-Lxxx<\/code>\u5c31\u76f8\u5f53\u4e8e\u5931\u6548\u4e86<\/a><\/p>\n\n\n\n<p>\u5728\u8f83\u65b0\u7248\u672c\u7684gcc\u4e2d\uff0c\u4f1a\u9ed8\u8ba4\u628a\u6700\u7ec8\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u7f16\u8bd1\u4e3ashared object\uff0c\u5982\u679c\u60f3\u751f\u6210\u4ee5\u524d\u610f\u4e49\u4e0a\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\uff0c\u9700\u8981\u5728\u6700\u7ec8\u7684\u94fe\u63a5flag\u91cc\u52a0\u4e0a<code>--disable-shared<\/code>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/stackoverflow.com\/questions\/20801767\/disable-shared-in-gcc-compiler\">https:\/\/stackoverflow.com\/questions\/20801767\/disable-shared-in-gcc-compiler<\/a><\/li><li><a href=\"https:\/\/stackoverflow.com\/questions\/34519521\/why-does-gcc-create-a-shared-object-instead-of-an-executable-binary-according-to\">https:\/\/stackoverflow.com\/questions\/34519521\/why-does-gcc-create-a-shared-object-instead-of-an-executable-binary-according-to<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5171\u4eab\u5e93\u547d\u540d libname.so.x.y.z lib:\u5171\u4eab\u5e93name:\u5171\u4eab\u5e93\u540d\u79f0so:\u56fa\u5b9a\u540e\u7f00x:\u4e3b\u7248\u672c\u53f7,\u4e0d\u540c\u7684\u7248\u672c\u53f7\u4e4b\u95f4\u4e0d\u517c\u5bb9y:\u6b21\u7248\u672c\u53f7,\u589e\u91cf\u5347\u7ea7\uff0c\u5411\u540e\u517c\u5bb9z:\u53d1\u884c\u7248\u672c\u53f7\uff0c\u5bf9\u5e94\u7248\u672c\u7684\u9519\u8bef\u4fee\u6b63\u548c\u6027&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[107],"class_list":["post-941","post","type-post","status-publish","format-standard","hentry","category-10","tag-linux-runtime"],"_links":{"self":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=941"}],"version-history":[{"count":2,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/941\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/941\/revisions\/1048"}],"wp:attachment":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}