{"id":9594,"date":"2023-05-31T09:34:13","date_gmt":"2023-05-31T01:34:13","guid":{"rendered":"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594"},"modified":"2024-07-27T16:13:59","modified_gmt":"2024-07-27T08:13:59","slug":"android%e5%90%af%e5%8a%a8%e6%b5%81%e7%a8%8b%e7%b3%bb%e5%88%97%e5%9e%8b%e6%96%87%e7%ab%a0","status":"publish","type":"post","link":"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594","title":{"rendered":"Android\u542f\u52a8\u6d41\u7a0b\u8be6\u89e3"},"content":{"rendered":"<p><a href=\"https:\/\/blog.csdn.net\/qq_30621333\/article\/details\/113863338\">https:\/\/blog.csdn.net\/qq_30621333\/article\/details\/113863338<\/a> (\u8be6\u7ec6\u7684\u542f\u52a8\u6846\u67b6\u56fe)<br \/>\n<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/127074795?utm_source=wechat_session\">https:\/\/zhuanlan.zhihu.com\/p\/127074795?utm_source=wechat_session<\/a><br \/>\n<a href=\"https:\/\/blog.csdn.net\/lvyaer_1122\/article\/details\/130508216\">https:\/\/blog.csdn.net\/lvyaer_1122\/article\/details\/130508216<\/a> (Android12 \u5185\u6838\u542f\u52a8\u4e0einit\u8fdb\u7a0b\u542f\u52a8)<br \/>\n<a href=\"https:\/\/www.jianshu.com\/p\/3460d78e4299\">https:\/\/www.jianshu.com\/p\/3460d78e4299<\/a><\/p>\n<p><a href=\"https:\/\/www.cnblogs.com\/Oude\/p\/12365102.html\">https:\/\/www.cnblogs.com\/Oude\/p\/12365102.html<\/a><\/p>\n<p><a href=\"https:\/\/blog.csdn.net\/weixin_34399060\/article\/details\/91417682\">https:\/\/blog.csdn.net\/weixin_34399060\/article\/details\/91417682<\/a> \uff08\u8be6\u89e3\u4e86Action\u5982\u4f55\u89e6\u53d1\u3001Service\u5982\u4f55\u542f\u52a8\uff09<\/p>\n<p><a href=\"https:\/\/article.itxueyuan.com\/xOMye\">https:\/\/article.itxueyuan.com\/xOMye<\/a> \uff08selinux\u673a\u5236\u4e0einit\u542f\u52a8\uff09<br \/>\n<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/109199714\">https:\/\/zhuanlan.zhihu.com\/p\/109199714<\/a><br \/>\n<a href=\"https:\/\/blog.csdn.net\/mafei852213034\/article\/details\/117049319\">https:\/\/blog.csdn.net\/mafei852213034\/article\/details\/117049319<\/a><\/p>\n<p><a href=\"https:\/\/mp.weixin.qq.com\/s\/N1zIlIETYxHwnxBPVvnGfw\">https:\/\/mp.weixin.qq.com\/s\/N1zIlIETYxHwnxBPVvnGfw<\/a> (\u7cfb\u5217\u578b\u6587\u7ae0\uff0c\u975e\u5e38\u4e4b\u8be6\u7ec6\uff01)<\/p>\n<p><a href=\"https:\/\/www.cnblogs.com\/yuanqiangfei\/p\/16802086.html\">https:\/\/www.cnblogs.com\/yuanqiangfei\/p\/16802086.html<\/a>\uff08\u975e\u5e38\u5168\uff09<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_16 counter-hierarchy counter-decimal ez-toc-grey\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#%E4%B8%80%E3%80%81init%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B\" title=\"\u4e00\u3001init\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b\">\u4e00\u3001init\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b<\/a><ul class=\"ez-toc-list-level-3\"><li class=\"ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#%E5%86%85%E6%A0%B8%E6%98%AF%E5%A6%82%E4%BD%95%E5%90%AF%E5%8A%A8init%E8%BF%9B%E7%A8%8B%E7%9A%84\" title=\"\u5185\u6838\u662f\u5982\u4f55\u542f\u52a8init\u8fdb\u7a0b\u7684\">\u5185\u6838\u662f\u5982\u4f55\u542f\u52a8init\u8fdb\u7a0b\u7684<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#1init%E8%BF%9B%E7%A8%8B%E7%9A%84%E5%90%AF%E5%8A%A8\" title=\"1.init\u8fdb\u7a0b\u7684\u542f\u52a8\">1.init\u8fdb\u7a0b\u7684\u542f\u52a8<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#2initrc%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6\" title=\"2.init.rc\u914d\u7f6e\u6587\u4ef6\">2.init.rc\u914d\u7f6e\u6587\u4ef6<\/a><ul class=\"ez-toc-list-level-4\"><li class=\"ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#1%EF%BC%89Android%E5%88%9D%E5%A7%8B%E5%8C%96%E8%AF%AD%E8%A8%80%E7%BC%96%E5%86%99%EF%BC%88Android_Init_Language%EF%BC%89%E8%AF%AD%E6%B3%95\" title=\"1\uff09Android\u521d\u59cb\u5316\u8bed\u8a00\u7f16\u5199\uff08Android Init Language\uff09\u8bed\u6cd5\">1\uff09Android\u521d\u59cb\u5316\u8bed\u8a00\u7f16\u5199\uff08Android Init Language\uff09\u8bed\u6cd5<\/a><ul class=\"ez-toc-list-level-5\"><li class=\"ez-toc-heading-level-5\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#1-1Action%EF%BC%9A\" title=\"1-1)Action\uff1a\">1-1)Action\uff1a<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-5\"><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#1-2Services%EF%BC%9A\" title=\"1-2)Services\uff1a\">1-2)Services\uff1a<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-4\"><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#2%EF%BC%89%E8%A7%A3%E6%9E%90\" title=\"2\uff09\u89e3\u6790\">2\uff09\u89e3\u6790<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#3%E6%9C%8D%E5%8A%A1%E7%9A%84%E5%90%AF%E5%8A%A8%EF%BC%88zygote%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%EF%BC%89\" title=\"3.\u670d\u52a1\u7684\u542f\u52a8\uff08zygote\u8fdb\u7a0b\u542f\u52a8\uff09\">3.\u670d\u52a1\u7684\u542f\u52a8\uff08zygote\u8fdb\u7a0b\u542f\u52a8\uff09<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-3\"><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#4init%E8%BF%9B%E7%A8%8B%E7%9A%84%E4%BD%9C%E7%94%A8\" title=\"4.init\u8fdb\u7a0b\u7684\u4f5c\u7528\">4.init\u8fdb\u7a0b\u7684\u4f5c\u7528<\/a><\/li><\/ul><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/xinyiworld.top\/wordpress_it\/?p=9594\/#%E4%BA%8C%E3%80%81Zygote%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B\" title=\"\u4e8c\u3001Zygote\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b\">\u4e8c\u3001Zygote\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E4%B8%80%E3%80%81init%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B\"><\/span>\u4e00\u3001init\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E5%86%85%E6%A0%B8%E6%98%AF%E5%A6%82%E4%BD%95%E5%90%AF%E5%8A%A8init%E8%BF%9B%E7%A8%8B%E7%9A%84\"><\/span>\u5185\u6838\u662f\u5982\u4f55\u542f\u52a8init\u8fdb\u7a0b\u7684<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/blog.csdn.net\/fu_kevin0606\/article\/details\/53320515\">https:\/\/blog.csdn.net\/fu_kevin0606\/article\/details\/53320515<\/a><\/p>\n<p><a href=\"https:\/\/blog.csdn.net\/u010783226\/article\/details\/119810208\">https:\/\/blog.csdn.net\/u010783226\/article\/details\/119810208<\/a><br \/>\n\u901a\u8fc7<code>kernel\/init\/main.c<\/code>\u4e2d\u7684<code>static int __ref kernel_init(void *unused)<\/code>\u8c03\u7528init\u7a0b\u5e8f<\/p>\n<pre><code class=\"language-bash\">static int __ref kernel_init(void *unused)\n{\n    if (ramdisk_execute_command) {\n        ret = run_init_process(ramdisk_execute_command);\n        if (!ret)\n            return 0;\n        pr_err(&quot;Failed to execute %s (error %d)\\n&quot;,\n               ramdisk_execute_command, ret);\n    }\n\n    \/*\n     * We try each of these until one succeeds.\n     *\n     * The Bourne shell can be used instead of init if we are\n     * trying to recover a really broken machine.\n     *\/\n    if (execute_command) {\n        ret = run_init_process(execute_command);\n        if (!ret)\n            return 0;\n        panic(&quot;Requested init %s failed (error %d).&quot;,\n              execute_command, ret);\n    }\n    if (!try_to_run_init_process(&quot;\/sbin\/init&quot;) ||\n        !try_to_run_init_process(&quot;\/etc\/init&quot;) ||\n        !try_to_run_init_process(&quot;\/bin\/init&quot;) ||\n        !try_to_run_init_process(&quot;\/bin\/sh&quot;))\n        return 0;\n\n    panic(&quot;No working init found.  Try passing init= option to kernel. &quot;\n          &quot;See Linux Documentation\/init.txt for guidance.&quot;);\n}<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"1init%E8%BF%9B%E7%A8%8B%E7%9A%84%E5%90%AF%E5%8A%A8\"><\/span>1.init\u8fdb\u7a0b\u7684\u542f\u52a8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5185\u6838\u542f\u52a8\u4e4b\u540e\u5c06\u4f1a\u521d\u59cb\u5316\u8f6f\u786c\u4ef6\u73af\u5883\uff0c\u52a0\u8f7d\u9a71\u52a8\u7a0b\u5e8f\uff0c\u6302\u8f7d\u6839\u6587\u4ef6\u7cfb\u7edf\uff0c\u7136\u540e\u521b\u5efa init \u8fdb\u7a0b\uff0cinit \u4f5c\u4e3a\u7cfb\u7edf\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7528\u6237\u8fdb\u7a0b\uff0c\u5176\u8fdb\u7a0b\u53f7\u4e3a 1\uff0c\u5728\u521b\u5efa init \u8fdb\u7a0b\u4e4b\u65f6\uff0c\u7cfb\u7edf\u4f1a\u6267\u884c\u4f4d\u4e8e<code> system\/core\/init <\/code>\u4e0b\u7684 init.cpp \u7a0b\u5e8f.init \u8fdb\u7a0b\u4e3b\u8981\u505a\u4e86\u4e09\u4ef6\u4e8b\u60c5\uff1a<strong>\u521b\u5efa\u7528\u6237\u7a7a\u95f4\u6587\u4ef6\u5939\u5e76\u6302\u8f7d\u3001\u542f\u52a8\u5c5e\u6027\u670d\u52a1\u3001\u89e3\u6790\u4f4d\u4e8e system\\core\\rootdir \u6587\u4ef6\u5939\u4e0b\u7684 init.rc \u6587\u4ef6<\/strong>\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2initrc%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6\"><\/span>2.init.rc\u914d\u7f6e\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/blog.csdn.net\/zhonglunshun\/article\/details\/78615980\">https:\/\/blog.csdn.net\/zhonglunshun\/article\/details\/78615980<\/a> \uff08\u51e0\u4e4e\u6bcf\u4e00\u884c\u90fd\u6ce8\u91ca\u4e86\uff09<\/p>\n<p>\u8981\u70b9\uff1a<\/p>\n<h4><span class=\"ez-toc-section\" id=\"1%EF%BC%89Android%E5%88%9D%E5%A7%8B%E5%8C%96%E8%AF%AD%E8%A8%80%E7%BC%96%E5%86%99%EF%BC%88Android_Init_Language%EF%BC%89%E8%AF%AD%E6%B3%95\"><\/span>1\uff09Android\u521d\u59cb\u5316\u8bed\u8a00\u7f16\u5199\uff08Android Init Language\uff09\u8bed\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\uff08<a href=\"https:\/\/www.jianshu.com\/p\/13fb7dbc283c\">https:\/\/www.jianshu.com\/p\/13fb7dbc283c<\/a>\uff09<\/p>\n<p>\u5305\u62ec\uff1aAction\u3001Commands\u3001Services\uff08<strong>\u5f00\u673a\u670d\u52a1<\/strong>\uff09\u3001Options\u548cImport\u3002<\/p>\n<h5><span class=\"ez-toc-section\" id=\"1-1Action%EF%BC%9A\"><\/span>1-1)<strong>Action<\/strong>\uff1a<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<pre><code class=\"language-bash\">on &lt;trigger&gt; [&amp;&amp; &lt;trigger&gt;]*     \/\/\u8bbe\u7f6e\u89e6\u53d1\u5668  \n   &lt;command&gt;  \n   &lt;command&gt;      \/\/\u52a8\u4f5c\u89e6\u53d1\u4e4b\u540e\u8981\u6267\u884c\u7684\u547d\u4ee4<\/code><\/pre>\n<p>Action\u7684command:<a href=\"https:\/\/blog.csdn.net\/zhangyongfeiyong\/article\/details\/53668124\">https:\/\/blog.csdn.net\/zhangyongfeiyong\/article\/details\/53668124<\/a><\/p>\n<h5><span class=\"ez-toc-section\" id=\"1-2Services%EF%BC%9A\"><\/span>1-2)<strong>Services<\/strong>\uff1a<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<pre><code class=\"language-bash\">service &lt;name&gt; &lt;pathname&gt; [ &lt;argument&gt; ]*   \/\/&lt;service\u7684\u540d\u5b57&gt;&lt;\u6267\u884c\u7a0b\u5e8f\u8def\u5f84&gt;&lt;\u4f20\u9012\u53c2\u6570&gt;  \n   &lt;option&gt;       \/\/option\u662fservice\u7684\u4fee\u9970\u8bcd\uff0c\u5f71\u54cd\u4ec0\u4e48\u65f6\u5019\u3001\u5982\u4f55\u542f\u52a8services  \n   &lt;option&gt;  \n   ...  <\/code><\/pre>\n<blockquote>\n<p>service\u7684\u5e38\u7528option:<\/p>\n<\/blockquote>\n<p><a href=\"https:\/\/blog.csdn.net\/langxianwenye\/article\/details\/41043261\">https:\/\/blog.csdn.net\/langxianwenye\/article\/details\/41043261<\/a><\/p>\n<ul>\n<li>\n<p>onrestart<br \/>\n\u5728Service\u91cd\u542f\u65f6\u6267\u884c\u547d\u4ee4.<\/p>\n<\/li>\n<li>\n<p>shutdown critical<br \/>\nshutdown critical\u5c5e\u6027\u53ef\u4ee5\u88ab\u7528\u6765\u6807\u8bb0\u4e00\u4e2a\u670d\u52a1\u4e3a\u201c\u5173\u95ed\u5173\u952e\u201d\u670d\u52a1\uff0c\u8fd9\u610f\u5473\u7740\u5728\u7cfb\u7edf\u5173\u95ed\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u8fd9\u4e2a\u670d\u52a1\u6ca1\u6709\u6b63\u786e\u5173\u95ed\uff0c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u7ee7\u7eed\u5c1d\u8bd5\u5173\u95ed\uff0c\u4ee5\u9632\u6b62\u8fdb\u5165\u4e0d\u7a33\u5b9a\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>service\u5206\u7c7b<\/p>\n<\/blockquote>\n<p>\u7531class\u5173\u952e\u5b57\u6807\u8bc6\uff0c\u6709main\u3001core\u3001late_start3\u79cd\u7c7b\u578b\u3002 <a href=\"https:\/\/blog.csdn.net\/w2064004678\/article\/details\/105651543\">https:\/\/blog.csdn.net\/w2064004678\/article\/details\/105651543<\/a><\/p>\n<p><strong>Import<\/strong>\uff1a \u5bfc\u5165\u5b50init.rc\u6587\u4ef6<\/p>\n<h4><span class=\"ez-toc-section\" id=\"2%EF%BC%89%E8%A7%A3%E6%9E%90\"><\/span>2\uff09\u89e3\u6790<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>\u7c7b\u4f3c\u4e8exml\u89e3\u6790\uff0c\u53cd\u5e8f\u5217\u5316\u7684\u8fc7\u7a0b\u3002 Action\u3001Service\u3001Import\u89e3\u6790<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3%E6%9C%8D%E5%8A%A1%E7%9A%84%E5%90%AF%E5%8A%A8%EF%BC%88zygote%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%EF%BC%89\"><\/span>3.\u670d\u52a1\u7684\u542f\u52a8\uff08zygote\u8fdb\u7a0b\u542f\u52a8\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>init \u8fdb\u7a0b\u901a\u8fc7\u89e3\u6790 init.rc \u6587\u4ef6\u5c06 action \u4fdd\u5b58\u5728 ActionManager \u7684 actions <em>\u94fe\u8868\u4e2d\uff0c\u7136\u540e\u901a\u8fc7\u904d\u5386 actions<\/em> \u94fe\u8868\uff0c\u6267\u884c action \u547d\u4ee4\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570\uff0c\u4ece\u800c\u8f6c\u81f3 builtins.cpp \u7684 do_class_start \u51fd\u6570\uff0c\u4e4b\u540e\u901a\u8fc7 Service \u7684 StartIfNotDisabled \u8c03\u7528 Service \u7684 Start \u51fd\u6570\uff0c\u6700\u7ec8\u901a\u8fc7 Start \u51fd\u6570\u521b\u5efa zygote \u8fdb\u7a0b\uff0c\u6267\u884c\u5bf9\u5e94\u7684 app_main.cpp \u6587\u4ef6\uff08frameworks\/base\/cmds\/app_process\/app_main.cpp\uff09\u542f\u52a8 zygote\u3002<\/p>\n<ul>\n<li>\u67e5\u770b\u670d\u52a1\u7684\u8fd0\u884c\u60c5\u51b5 \u901a\u8fc7<code>getprop | grep init.svc<\/code> \u53ef\u67e5\u770b\u6240\u6709\u7684service\u8fd0\u884c\u72b6\u6001<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4init%E8%BF%9B%E7%A8%8B%E7%9A%84%E4%BD%9C%E7%94%A8\"><\/span>4.init\u8fdb\u7a0b\u7684\u4f5c\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>init \u662f\u7cfb\u7edf\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7528\u6237\u8fdb\u7a0b\uff0c\u5b83\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u521b\u5efa\u7528\u6237\u7a7a\u95f4\u6587\u4ef6\u5939\u5e76\u6302\u8f7d\u3001\u542f\u52a8\u5c5e\u6027\u670d\u52a1\u3001 \u89e3\u6790 init.rc \u6587\u4ef6\u5e76\u542f\u52a8 zygote \u8fdb\u7a0b\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E4%BA%8C%E3%80%81Zygote%E8%BF%9B%E7%A8%8B%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B\"><\/span>\u4e8c\u3001Zygote\u8fdb\u7a0b\u542f\u52a8\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/343232160\">https:\/\/zhuanlan.zhihu.com\/p\/343232160<\/a><br \/>\n<a href=\"https:\/\/blog.csdn.net\/weixin_34399060\/article\/details\/91417682\">https:\/\/blog.csdn.net\/weixin_34399060\/article\/details\/91417682 <\/a><br \/>\ninit.rc\u6587\u4ef6\u4e2d\uff1a<\/p>\n<pre><code class=\"language-bash\">import \/init.${ro.zygote}.rc\n\non nonencrypted\n    # A\/B update verifier that marks a successful boot.\n    exec - root -- \/system\/bin\/update_verifier nonencrypted\n    class_start main\n    class_start late_start\u590d\u5236\u4ee3\u7801<\/code><\/pre>\n<p>ro.zygote\u76f8\u5173\u6587\u4ef6\u4e2d\uff0czygote\u7684class\u662fmain\uff0c\u6240\u4ee5nonencrypted\u89e6\u53d1\u5668\u88ab\u89e6\u53d1\u65f6\uff0czygote\u670d\u52a1\u542f\u52a8\u3002<\/p>\n<p>1\uff09nonencrypted\u89e6\u53d1\u5668\u4f55\u65f6\u89e6\u53d1\uff1a<br \/>\n\u7814\u7a76class_start\u7684\u5b9e\u73b0\u539f\u7406\u53ef\u77e5\uff1a<br \/>\n1-1\uff09init\u65e0\u9650\u5faa\u73af\u65f6<code>system\/core\/init\/builtins.cpp<\/code> \u4e0b\u7528\u4e8e\u542f\u52a8 zygote \u7684 do_class_start\u51fd\u6570\u5c06\u88ab\u6267\u884c\u3002<br \/>\n1-2\uff09<code>builtins.cpp<\/code>\u4f1a\u8c03\u7528<code>service.cpp<\/code>\u7684 StartIfNotDisabled\u65b9\u6cd5\uff0c\u6700\u7ec8\u8c03\u7528Start\u65b9\u6cd5\uff0c\u521b\u5efa\u5b50\u8fdb\u7a0b\u3002<\/p>\n<pre><code class=\"language-cpp\">\nbool Service::Start() {\n    ....\n   \/\/\u521b\u5efa\u5b50\u8fdb\u7a0b\n    pid_t pid = fork();\n    if (pid == 0) {\n        ...\n       \/\/\u6267\u884c\u5bf9\u5e94 service \u5bf9\u5e94\u7684\u6267\u884c\u6587\u4ef6\uff0cargs_[0].c_str() \u5c31\u662f\u6267\u884c\u8def\u5f84\n        if (execve(args_[0].c_str(), (char**) &amp;strs[0], (char**) ENV) &lt; 0) {\n            ERROR(&quot;cannot execve(&#039;%s&#039;): %s\\n&quot;, args_[0].c_str(), strerror(errno));\n        }\n\n        _exit(127);\n    }\n\n    ....\n    return true;\n}<\/code><\/pre>\n<p>1-3\uff09\u63a5\u7740init.zygotexx.rc\u7684zygote\u670d\u52a1\u8c03\u7528<code>\/system\/bin\/app_processXX<\/code>\u7a0b\u5e8f\uff0c\u6700\u7ec8zygote\u8fdb\u7a0b\u5728<code>frameworks\/base\/cmds\/app_process\/app_main.cpp<\/code>\u4e2d\u88ab\u542f\u52a8\u3002<\/p>\n<button class=\"simplefavorite-button\" data-postid=\"9594\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"0\" style=\"\">\u6536\u85cf <i class=\"sf-icon-star-empty\"><\/i><\/button>","protected":false},"excerpt":{"rendered":"<p>https:\/\/blog.csdn.net\/qq_30621333\/article\/details\/ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[767],"tags":[],"_links":{"self":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/9594"}],"collection":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9594"}],"version-history":[{"count":58,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/9594\/revisions"}],"predecessor-version":[{"id":14076,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=\/wp\/v2\/posts\/9594\/revisions\/14076"}],"wp:attachment":[{"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9594"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xinyiworld.top\/wordpress_it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}