{"id":447,"date":"2023-06-19T16:22:36","date_gmt":"2023-06-19T08:22:36","guid":{"rendered":"https:\/\/h4ckm310n.com\/?p=447"},"modified":"2023-06-27T12:18:49","modified_gmt":"2023-06-27T04:18:49","slug":"%e3%80%90%e6%9c%aa%e5%ae%8c%e3%80%91ebpf%e5%bc%80%e5%8f%91%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/h4ckm310n.com\/?p=447","title":{"rendered":"\u3010\u672a\u5b8c\u3011eBPF\u5f00\u53d1\u5b66\u4e60"},"content":{"rendered":"<p><!--more--><\/p>\n<h4>\u5f00\u53d1\u73af\u5883\u642d\u5efa<\/h4>\n<p>\u7cfb\u7edf\uff1aUbuntu 20.10<br \/>\n\u5185\u6838\uff1a5.8.0-25<\/p>\n<p>\u7531\u4e8e20.10\u4e0d\u662fLTS\u7248\u672c\uff0c\u9700\u8981\u5148\u4fee\u6539\/etc\/apt\/source.list\u6587\u4ef6\uff0c\u628a\u201chttp:\/\/archive.ubuntu.com\/ubuntu\u201d\u4fee\u6539\u4e3a\u201chttps:\/\/mirrors.ustc.edu.cn\/ubuntu-old-releases\/ubuntu\u201d\uff0c\u7136\u540eupdate\u3002<\/p>\n<pre>sudo sed -i 's\/http:\\\/\\\/archive.ubuntu.com\\\/ubuntu\/https:\\\/\\\/mirrors.ustc.edu.cn\\\/ubuntu-old-releases\\\/ubuntu\/g' \/etc\/apt\/sources.list\r\nsudo apt-get update\r\n<\/pre>\n<p>\u5b89\u88c5\u76f8\u5173\u4f9d\u8d56\uff0c\u4e0b\u8f7dlibbpf\u7684\u6e90\u7801\u5e76\u7f16\u8bd1\uff1a<\/p>\n<pre>sudo apt-get install git clang make libelf1 libelf-dev zlib1g-dev\r\ngit clone https:\/\/github.com\/libbpf\/libbpf.git\r\ncd libbpf\/src\/\r\nmake\r\nsudo make install\r\n<\/pre>\n<p>\u4eceGitHub\u4e0b\u8f7dbpftool\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u5e76\u653e\u5230\/usr\/local\/sbin\/\u4e2d\uff0c\u7136\u540e\u5728eBPF\u9879\u76ee\u4ee3\u7801\u7684\u76ee\u5f55\u4e0b\u751f\u6210vmlinux.h\u3002<\/p>\n<pre>bpftool btf dump file \/sys\/kernel\/btf\/vmlinux format c &gt; vmlinux.h\r\n<\/pre>\n<pre>clang -g -O2 -target bpf -D__TARGET_ARCH_x86_64 -I\/usr\/src\/linux-headers-5.8.0-25\/include -I\/usr\/include -c .\/splice.bpf.c -o splice.bpf.o\r\nbpftool gen skeleton .\/splice.bpf.o &gt; splice.skel.h\r\nclang -I\/usr\/include -c splice.c -o splice_epbf.o\r\nclang splice_epbf.o -lbpf -lelf -lz -o splice_epbf\r\n<\/pre>\n<p>\u8fdb\u5165root\u7528\u6237\uff0c\u8fd0\u884c\u7a0b\u5e8f\u3002<\/p>\n<pre>LD_LIBRARY_PATH=$LD_LIBRARY_PATH:\/usr\/lib64 .\/splice_epbf\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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