{"id":62,"date":"2026-06-05T06:53:58","date_gmt":"2026-06-05T06:53:58","guid":{"rendered":"https:\/\/www.skillnotes.cloud\/?p=62"},"modified":"2026-06-05T06:58:49","modified_gmt":"2026-06-05T06:58:49","slug":"%e6%90%ad%e5%bb%baglibc%e8%b0%83%e8%af%95%e7%8e%af%e5%a2%83","status":"publish","type":"post","link":"https:\/\/www.skillnotes.cloud\/?p=62","title":{"rendered":"\u642d\u5efaglibc\u8c03\u8bd5\u73af\u5883"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>\u642d\u5efaglibc<strong>\u7b49\u5e95\u5c42\u5e93\u542f\u52a8\u548c\u521d\u59cb\u5316<\/strong>\u8c03\u8bd5\u73af\u5883<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u7f16\u8bd1\u5b8c\u6210\u7684\u73af\u5883\u4f7f\u7528 devtool modify glibc \u4f1a\u5c06glibc\u4ee3\u7801\u5c55\u5f00\u5728<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>${yocto\u6839\u76ee\u5f55}\/build\/workspace\/glibc\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. \u4f7f\u7528virtiofsd(qemu\u7684\u914d\u5957\u5de5\u5177)\u542f\u52a8virtiofs,\u4f7fqemu\u53ef\u4ee5\u8bbf\u95eehost\u7684glibc\u4ee3\u7801\u76ee\u5f55<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo virtiofsd --socket-path=\/tmp\/vhostqemu -o source=${yocto\u6839\u76ee\u5f55}\/build\/workspace\/glibc -o cache=none<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. \u4f7f\u7528qemu\u542f\u52a8\u865a\u62df\u673a\uff0c\u5e76\u8bbf\u95eevirtiofs<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>qemu-system-x86_64 -device virtio-net-pci,netdev=net0,mac=52:54:00:12:34:02 -netdev tap,id=net0,ifname=tap0,script=no,downscript=no -object rng-random,filename=\/dev\/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 -drive file=${yocto\u6839\u76ee\u5f55}\/build\/tmp\/deploy\/images\/qemux86-64\/core-image-minimal-qemux86-64.rootfs.ext4,if=virtio,format=raw -usb -device usb-tablet -usb -device usb-kbd -chardev socket,id=char0,path=\/tmp\/vhostqemu -device vhost-user-fs-pci,queue-size=1024,chardev=char0,tag=glibc -object memory-backend-file,id=mem,size=1G,mem-path=\/dev\/shm,share=on -numa node,memdev=mem -cpu Skylake-Client -machine q35,i8042=off -smp 4 -m 1024 -vga std -serial mon:stdio -display sdl,show-cursor=on -gdb tcp::2345 -kernel ${yocto\u6839\u76ee\u5f55}\/build\/tmp\/deploy\/images\/qemux86-64\/bzImage -append 'root=\/dev\/vda rw console=tty0 console=ttyS0,115200 ip=192.168.7.2::192.168.7.1:255.255.255.0::eth0:off:8.8.8.8 net.ifnames=0 oprofile.timer=1 tsc=reliable no_timer_check rcupdate.rcu_expedited=1 swiotlb=0 nokaslr'<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4. \u865a\u62df\u673a\u542f\u52a8\u5b8c\u6210\uff0c\u8fdb\u5165\u865a\u62df\u673a\uff0c\u6302\u8f7d virtiofs \u5230\u865a\u62df\u673a\u5185\u7684\u76ee\u5f55<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir -p \/mnt\/glibc\n\nmount -t virtiofs glibc \/mnt\/glibc<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5. \u5728\u865a\u62df\u673a\u5185\u4f7f\u7528gdb\u8c03\u8bd5glibc<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528gdb\u8c03\u8bd5\u5e94\u7528\u7a0b\u5e8f\u52a0\u8f7dlibc.so\uff0c\uff08\u5927\u90e8\u5206\u7a0b\u5e8f\u4f1a\u4f7f\u7528libc.so\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u52a0\u8f7dglibc\u6240\u5728\u7684\u6587\u4ef6\u5939<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6. \u65e0\u6cd5\u542f\u52a8systemd,\u53ef\u4ee5\u4f7f\u7528 Linux\u542f\u52a8\u53c2\u6570 init=\/bin\/bash \u542f\u52a8shell \u6765\u63d0\u4f9b\u8c03\u8bd5\u73af\u5883<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2. \u4f7f\u7528virtiofsd(qemu\u7684\u914d\u5957\u5de5\u5177)\u542f\u52a8virtiofs,\u4f7fqemu\u53ef\u4ee5\u8bbf\u95eehost\u7684glibc [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-62","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/posts\/62","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=62"}],"version-history":[{"count":1,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/posts\/62\/revisions"}],"predecessor-version":[{"id":63,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=\/wp\/v2\/posts\/62\/revisions\/63"}],"wp:attachment":[{"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=62"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=62"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skillnotes.cloud\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=62"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}