{"id":110,"date":"2019-09-04T10:03:21","date_gmt":"2020-04-04T11:30:21","guid":{"rendered":"http:\/\/www.anthonylee.cn\/myblog\/?p=110"},"modified":"2020-04-04T19:30:21","modified_gmt":"2020-04-04T11:30:21","slug":"%e5%92%8c%e6%97%a0%e7%94%a8%e4%bb%a3%e7%a0%81%e8%af%b4%e5%86%8d%e8%a7%81%ef%bc%81%e9%98%bf%e9%87%8c%e6%96%87%e5%a8%b1%e6%97%a0%e6%8d%9f%e4%bb%a3%e7%a0%81%e8%a6%86%e7%9b%96%e7%8e%87%e7%bb%9f%e8%ae%a1","status":"publish","type":"post","link":"http:\/\/www.anthonylee.cn\/myblog\/?p=110","title":{"rendered":"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848"},"content":{"rendered":"<p><img src=\"http:\/\/p3.pstatp.com\/large\/pgc-image\/RpDxW4qAk5gWzu\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p>\u4f5c\u8005 | \u963f\u91cc\u5df4\u5df4\u6587\u5a31\u9ad8\u7ea7\u65e0\u7ebf\u5f00\u53d1\u5de5\u7a0b\u5e08 \u5b59\u73d1\u8fbe<\/p>\n<p>\u8d23\u7f16 | \u5c60\u654f<\/p>\n<p><img src=\"http:\/\/p1.pstatp.com\/large\/pgc-image\/RT4Gwk56bt5iOJ\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>\u80cc\u666f<\/strong><\/p>\n<p>\u4e3a\u4e86\u9002\u5e94\u4ea7\u54c1\u7684\u5feb\u901f\u8fed\u4ee3\uff0c\u901a\u5e38\u5927\u91cf\u7684\u7814\u53d1\u8d44\u6e90\u4f1a\u6295\u5165\u5728\u65b0\u529f\u80fd\u7684\u5f00\u53d1\u4e0a\uff0c\u800c\u9488\u5bf9\u65e0\u7528\u529f\u80fd\u7684\u6cbb\u7406\u5374\u5f88\u5c11\u88ab\u5173\u6ce8\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u7ebf\u4e0a\u5e94\u7528\u4f1a\u79ef\u7d2f\u5927\u91cf\u7684\u65e0\u7528\u4ee3\u7801\uff0c\u518d\u52a0\u4e0a\u4eba\u5458\u66f4\u8fed\u4ee5\u53ca\u529f\u80fd\u4ea4\u63a5\uff0c\u6cbb\u7406\u65e0\u7528\u4ee3\u7801\u7684\u6210\u672c\u8d8a\u6765\u8d8a\u9ad8\u3002\u6700\u7ec8\u5e94\u7528\u5b89\u88c5\u5305\u8fc7\u5927\uff0c\u5bfc\u81f4\u5e94\u7528\u4e0b\u8f7d\u8f6c\u5316\u7387\u964d\u4f4e\u3001\u5e94\u7528\u5e73\u53f0\u4e0a\u67b6\u53d7\u9650\uff08\u4f8b\u5982\u8d85\u8fc7100M\u7684\u5e94\u7528\u4e0d\u80fd\u4e0a\u67b6\u8c37\u6b4c\u5546\u5e97\uff09\u3001\u7814\u53d1\u6548\u7387\u964d\u4f4e\u7b49\u7b49\u3002<\/p>\n<p>\u5982\u4f55\u6cbb\u7406\u65e0\u7528\u4ee3\u7801\uff1f\u9996\u5148\u662f\u4ee3\u7801\u9759\u6001\u626b\u63cf\u3002\u5bf9\u4e8eAndroid\u5e94\u7528\uff0cProGuard\u5de5\u5177\u53ef\u4ee5\u5728\u6784\u5efa\u9636\u6bb5\u9759\u6001\u5206\u6790\u4ee3\u7801\u5f15\u7528\u5173\u7cfb\uff0c\u81ea\u52a8\u88c1\u51cf\u6389\u6ca1\u6709\u88ab\u5f15\u7528\u5230\u7684\u4ee3\u7801\uff0c\u51cf\u5c11\u5b89\u88c5\u5305\u5927\u5c0f\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u53ea\u6709\u4ee3\u7801\u9759\u6001\u626b\u63cf\u662f\u4e0d\u591f\u7684\uff0c\u56e0\u4e3a\u5b83\u4e0d\u80fd\u4ee3\u8868\u7ebf\u4e0a\u7528\u6237\u5b9e\u9645\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u6240\u4ee5\u8fd8\u9700\u8981\u4e00\u5957\u7ebf\u4e0a\u7528\u6237\u4ee3\u7801\u8986\u76d6\u7387\u7684\u7edf\u8ba1\u65b9\u6848\u3002<\/p>\n<p>\u4e0b\u9762\u6211\u5c06\u4eceAndroid\u5e94\u7528\u7684\u7ebf\u4e0a\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u5207\u5165\uff0c\u5206\u4eab\u4f18\u9177\u7684\u65e0\u7528\u4ee3\u7801\u6cbb\u7406\u7684\u6280\u672f\u601d\u8003\u548c\u843d\u5730\u65b9\u6848\u3002<\/p>\n<p><img src=\"http:\/\/p1.pstatp.com\/large\/pgc-image\/RT7S2kzFTfre26\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>\u4f20\u7edf\u91c7\u96c6\u65b9\u6848<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u5728\u9700\u8981\u7edf\u8ba1\u7684\u4ee3\u7801\u5904\u52a0\u4e0a\u7edf\u8ba1\u4ee3\u7801\u3002\u5f53\u4ee3\u7801\u88ab\u6267\u884c\u65f6\uff0c\u8fdb\u884c\u7edf\u8ba1\u548c\u4e0a\u62a5\u3002\u5e94\u7528\u7684\u4ee3\u7801\u884c\u6570\u901a\u5e38\u90fd\u6570\u4ee5\u4e07\u8ba1\uff0c\u624b\u52a8\u6dfb\u52a0\u663e\u7136\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u6240\u4ee5\u4e00\u822c\u4f1a\u5728\u6784\u5efa\u9636\u6bb5\u901a\u8fc7\u9762\u5411\u5207\u9762\u7f16\u7a0b\uff08AOP\uff09\u6765\u63d2\u5165\u7edf\u8ba1\u4ee3\u7801\uff08\u4ee5\u4e0b\u7b80\u79f0\u4e3a\u63d2\u6869\uff09\uff0c\u53ef\u4ee5\u501f\u52a9\u4e00\u4e9b\u6210\u719f\u7684AOP\u4e2d\u95f4\u4ef6\u5b8c\u6210\uff0c\u4f8b\u5982\uff0cJacoco\u3001ASM\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u9700\u8981\u601d\u8003\u662f\uff0c\u6211\u4eec\u671f\u671b\u91c7\u96c6\u7684\u7c92\u5ea6\u662f\u4ec0\u4e48\uff1f\u4e00\u822c\u6765\u8bf4\uff0c\u7c92\u5ea6\u4ece\u7ec6\u5230\u7c97\u5206\u4e3a\uff1a\u6307\u4ee4\u3001\u5206\u652f\u3001\u65b9\u6cd5\u3001\u7c7b\u7ea7\u522b\uff0c\u7c92\u5ea6\u8d8a\u7ec6\uff0c\u4ee3\u7801\u8986\u76d6\u7387\u7ed3\u679c\u8d8a\u51c6\u786e\uff0c\u4f46\u6027\u80fd\u635f\u8017\u4e5f\u8d8a\u5927\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u91c7\u96c6\u7684\u7c92\u5ea6\u4e3a\u6307\u4ee4\u7ea7\u522b\uff0c\u5c31\u9700\u8981\u5bf9\u6bcf\u4e2a\u6307\u4ee4\u8fdb\u884c\u63d2\u6869\uff0c\u4f46\u8fd9\u79cd\u63d2\u88c5\u4f1a\u5bfc\u81f4\u6307\u4ee4\u6570\u4e5f\u7ffb\u500d\uff0c\u5b89\u88c5\u5305\u589e\u5927\u5e76\u4e14\u8fd0\u884c\u65f6\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<p>\u4f18\u9177\u66fe\u5c1d\u8bd5\u8fc7\u7528Jacoco\u8fdb\u884c\u5206\u652f\u7c92\u5ea6\u7684\u63d2\u6869\uff0c\u5f53\u65f6\u5e0c\u671b\u8986\u76d6\u5c3d\u91cf\u591a\u7684\u7528\u6237\uff0c\u56e0\u4e3a\u8986\u76d6\u7684\u7528\u6237\u8d8a\u591a\u7ed3\u679c\u8d8a\u51c6\u786e\u3002\u4f46\u7ecf\u6d4b\u8bd5\uff0c\u6b64\u65b9\u6848\u4f7f\u5b89\u88c5\u5305\u589e\u592710M\uff0c\u8fd0\u884c\u65f6\u6027\u80fd\u4e25\u91cd\u6076\u5316\uff0c\u679c\u65ad\u653e\u5f03\u4e86\u6b64\u65b9\u6848\u3002<\/p>\n<p>\u4e3a\u4e86\u6743\u8861\u6027\u80fd\u548c\u91c7\u96c6\u7c92\u5ea6\uff0c\u76ee\u524d\u6211\u4eec\u4e00\u822c\u90fd\u91c7\u53d6\u7c7b\u7ea7\u522b\u7c92\u5ea6\u7684\u63d2\u6869\uff0c\u4e00\u65b9\u9762\u662f\u56e0\u4e3a\u8fd9\u6837\u5bf9\u6027\u80fd\u5f71\u54cd\u8f83\u5c0f\uff0c\u53e6\u4e00\u65b9\u9762\u8fc7\u7ec6\u7684\u91c7\u96c6\u7c92\u5ea6\u53cd\u800c\u4f1a\u52a0\u91cd\u4e1a\u52a1\u65b9\u6cbb\u7406\u7684\u96be\u5ea6\u3002\u4f46\u6b64\u65b9\u6848\u8fd8\u4e0d\u591f\u5b8c\u7f8e\uff1a<\/p>\n<p>1)\u8fd0\u884c\u65f6\u6027\u80fd\uff1a\u5f53\u7c7b\u9996\u6b21\u52a0\u8f7d\u65f6\u4f1a\u6267\u884c\u7edf\u8ba1\u4ee3\u7801\uff0cApp\u542f\u52a8\u8fc7\u7a0b\u4f1a\u52a0\u8f7d\u6210\u5343\u4e0a\u4e07\u4e2a\u7c7b \uff0c\u4f1a\u5bf9\u542f\u52a8\u6027\u80fd\u9020\u6210\u4e00\u5b9a\u5f71\u54cd\uff1b<\/p>\n<p>2)\u5305\u5927\u5c0f\uff1a\u6709\u591a\u5c11\u4e2a\u7c7b\uff0c\u5c31\u4f1a\u63d2\u5165\u591a\u5c11\u884c\u7edf\u8ba1\u4ee3\u7801\uff0c\u5bf9\u4e8e\u50cf\u4f18\u9177\u8fd9\u79cd\u5927\u578bApp\uff0c\u4e5f\u4f1a\u589e\u52a0\u4e0d\u5c11\u7684\u5b89\u88c5\u5305\u5927\u5c0f\uff1b<\/p>\n<p>3)\u6784\u5efa\u8017\u65f6\uff1a\u56e0\u4e3a\u6784\u5efa\u8fc7\u7a0b\u4e2d\u9700\u8981\u5bf9\u6bcf\u4e2a\u7c7b\u8fdb\u884c\u63d2\u6869\uff0c\u589e\u52a0\u4e86\u6784\u5efa\u8017\u65f6\uff1b<\/p>\n<p><img src=\"http:\/\/p3.pstatp.com\/large\/pgc-image\/RTJXJ1kBqzfCnu\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>\u65b0\u91c7\u96c6\u65b9\u6848\u2014SlimLady<\/strong><\/p>\n<p><strong>\u2590 <\/strong><strong>\u76ee\u6807<\/strong><\/p>\n<p>\u4f18\u9177\u5e0c\u671b\u6709\u4e00\u5957\u65b9\u6848\u53ef\u4ee5\u65e0\u635f\u5730\u91c7\u96c6\u7ebf\u4e0a\u4ee3\u7801\u8986\u76d6\u7387\uff0c\u6838\u5fc3\u76ee\u6807\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u8fd0\u884c\u65f6\u6027\u80fd\uff1a\u65e0\u4efb\u4f55\u5f71\u54cd\uff1b<\/li>\n<li>\u5305\u5927\u5c0f\uff1a\u65e0\u4efb\u4f55\u5f71\u54cd\uff1b<\/li>\n<li>\u6784\u5efa\u8017\u65f6\uff1a\u65e0\u4efb\u4f55\u5f71\u54cd\uff1b<\/li>\n<\/ol>\n<p><strong>\u2590 <\/strong><strong>\u5b9e\u73b0<\/strong><\/p>\n<p>\u901a\u8fc7\u7814\u7a76\u6e90\u7801\uff0c\u53d1\u73b0\u53ef\u4ee5\u901a\u8fc7\u52a8\u6001\u67e5\u8be2DVM\u865a\u62df\u673a\u5df2\u52a0\u8f7d\u7c7b\u7684\u4fe1\u606f\u6765\u83b7\u53d6\u7c7b\u7ea7\u522b\u7684\u4ee3\u7801\u8986\u76d6\u7387\uff0c\u4e0b\u56fe\u4e2d\u201c\u8986\u76d6\u7387\u91c7\u96c6\u201d\u90e8\u5206\u5373\u4e3aSlimLady\u91c7\u96c6\u7684\u539f\u7406\u56fe\uff0c\u8fd9\u91cc\u6211\u4eec\u53ea\u5173\u6ce8\u8fd9\u90e8\u5206\uff0c\u5176\u4ed6\u90e8\u5206\u5c06\u5728\u540e\u9762\u7684\u6574\u4f53\u65b9\u6848\u4e2d\u8fdb\u884c\u8bb2\u89e3\u3002<\/p>\n<p><img src=\"http:\/\/p1.pstatp.com\/large\/pgc-image\/RtqQ2tmEkf5qfc\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>ClassTable<\/strong><\/p>\n<p>Java\u865a\u62df\u673a\u89c4\u8303\u89c4\u5b9a\uff0c\u7c7b\u5728\u4f7f\u7528\u524d\u8981\u5148\u88ab\u865a\u62df\u673a\u52a0\u8f7d\u3002Android\u4e2d\uff0c\u662f\u901a\u8fc7ClassLoader\u6765\u5b8c\u6210\u7c7b\u52a0\u8f7d\u7684\uff0c\u6700\u540e\u4fdd\u5b58\u5728Native\u5c42\u7684ClassTable\u4e2d\uff0c\u6240\u4ee5\u5982\u679c\u6211\u4eec\u83b7\u53d6\u4e86\u6240\u6709ClassLoader\u7684ClassTable\u5bf9\u8c61\uff0c\u5c31\u6709\u53ef\u80fd\u5224\u65ad\u51fa\u865a\u62df\u673a\u52a0\u8f7d\u4e86\u54ea\u4e9b\u7c7b\u3002<\/p>\n<p>\u9996\u5148\uff0c\u83b7\u53d6\u6240\u6709\u7684ClassLoader\u5bf9\u8c61\u3002\u5bf9\u4e8eAPK\u4e2d\u7684\u7c7b\uff0c\u5982\u679c\u65e0\u7279\u6b8a\u58f0\u660e\uff0c\u4e00\u822c\u90fd\u4f1a\u88ab\u9ed8\u8ba4\u7684PathClassLoader\u52a0\u8f7d\uff1b\u5bf9\u4e8e\u52a8\u6001\u52a0\u8f7d\u7684\u7c7b\uff0c\u9700\u8981\u5728\u81ea\u5b9a\u4e49\u7684ClassLoader\u4e2d\u52a0\u8f7d\uff0c\u4f8b\u5982Atlas\u4f1a\u4e3a\u6bcf\u4e2aBundle\u521b\u5efa\u4e00\u4e2a\u76f8\u5e94\u7684ClassLoader\uff0c\u901a\u8fc7\u8fd9\u4e2aClassLoader\u6765\u52a0\u8f7dBundle\u4e2d\u7684\u7c7b\u3002\u4e00\u65e6\u660e\u786e\u4e86App\u4e2d\u7528\u5230\u4e86\u54ea\u4e9bClassLoder\uff0c\u83b7\u53d6\u662f\u6613\u5982\u53cd\u638c\u7684<\/p>\n<p>\u5176\u6b21\uff0c\u901a\u8fc7ClassLoader\u6765\u83b7\u53d6ClassTable\u7684\u5bf9\u8c61\u7684\u5730\u5740\u3002\u901a\u8fc7Java\u5c42ClassLoader\u7c7b\u7684\u6e90\u7801\u53ef\u77e5\uff0cClassLoader\u6709\u4e00\u4e2a\u6210\u5458\u53d8\u91cfclassTable\uff087.0\u53ca\u4ee5\u4e0a\u7248\u672c\uff09\uff0c\u8fd9\u4e2a\u53d8\u91cf\u4fdd\u5b58\u4e86Native\u5c42ClassTable\u5bf9\u8c61\u7684\u5730\u5740\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u8fd9\u4e2a\u5730\u5740\uff1a<\/p>\n<pre><code>ClassLoader classLoader = XXX;\r\nField classTableField = ClassLoader.class.getDeclaredField(\"classTable\");\r\nclassTableField.setAccessible(true);\r\nlong classTableAddr = classTableField.getLong(classLoader);<\/code><\/pre>\n<p>\u4f46\u57289.0\u7684\u7cfb\u7edf\u4e2d\u6210\u5458\u53d8\u91cfclassTable\u88ab\u52a0\u5165\u4e86\u6df1\u7070\u540d\u5355\uff0c\u9650\u5236\u4e86\u76f4\u63a5\u53cd\u5c04\uff0c\u9700\u8981\u901a\u8fc7\u7cfb\u7edf\u7c7b\u8fdb\u884c\u53cd\u5c04\u7ed5\u8fc7\u6b64\u9650\u5236\uff1a<\/p>\n<pre><code>ClassLoader classLoader = XXX;\r\nMethod metaGetDeclaredField = Class.class.getDeclaredMethod(\"getDeclaredField\", String.class);\r\nField classTableField = (Field) metaGetDeclaredField.invoke(ClassLoader.class, \"classTable\");\r\nclassTableField.setAccessible(true);\r\nlong classTableAddr = classTableField.getLong(classLoader);<\/code><\/pre>\n<p>\u81f3\u6b64\uff0c\u6211\u4eec\u5c31\u83b7\u5f97\u4e86\u6240\u6709\u7684ClassTable\u5bf9\u8c61\u7684\u5730\u5740\uff0c\u91cc\u9762\u4fdd\u5b58\u4e86\u5168\u90e8\u7684\u7c7b\u52a0\u8f7d\u4fe1\u606f\u3002<\/p>\n<p><strong>\u7c7b\u540d\u5217\u8868 <\/strong><\/p>\n<p>\u901a\u8fc7\u9605\u8bfb\u6e90\u7801\u53d1\u73b0ClassTable\u6709\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u67e5\u8be2\u7c7b\u662f\u5426\u88ab\u52a0\u8f7d\u8fc7\uff08\u4e0b\u8282\u5c06\u8be6\u7ec6\u4ecb\u7ecd\uff09\uff0c\u8fd9\u6837\u6211\u4eec\u53ea\u9700\u8981\u83b7\u5f97\u6240\u6709\u7c7b\u540d\u7684\u5217\u8868\uff0c\u518d\u8c03\u7528\u90a3\u4e2a\u65b9\u6cd5\uff0c\u5373\u53ef\u4ee5\u5224\u65ad\u7c7b\u662f\u5426\u88ab\u52a0\u8f7d\u8fc7\u3002<\/p>\n<p>APK\u4e2d\u7684\u7c7b\u540d\u5217\u8868\u53ef\u4ee5\u901a\u8fc7DexFile\u8fdb\u884c\u83b7\u53d6\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre><code>List&lt;String&gt; classes = new ArrayList&lt;&gt;;\r\nDexFile df = new DexFile(context.getPackageCodePath);\r\nfor (Enumeration&lt;String&gt; iter = df.entries; iter.hasMoreElements; ) {\r\nclasses.add(iter.nextElement);\r\n}<\/code><\/pre>\n<p>\u540c\u7406\uff0c\u52a8\u6001\u52a0\u8f7d\u7684\u7c7b\u4e5f\u53ef\u4ee5\u901a\u8fc7DexFile\u83b7\u53d6\uff1b<\/p>\n<p><strong>\u7c7b\u662f\u5426\u88ab\u52a0\u8f7d<\/strong><\/p>\n<p>\u901a\u8fc7\u9605\u8bfb\u6e90\u7801\u53d1\u73b0class_table.cc\u4e2d\uff0cClassTable\u6709\u4e2aLookup\u65b9\u6cd5\uff0c\u4f20\u5165\u7c7b\u540d\u548c\u7c7b\u540d\u7684hash\u503c\uff0c\u8fd4\u56de\u7c7b\u5bf9\u8c61\u7684\u5730\u5740\uff0c\u5982\u4e0b\uff1a<\/p>\n<p>mirror::Class* ClassTable::Lookup(const char* descriptor, size_t hash)<\/p>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u4e3aptr\uff0c\u8bf4\u660e\u6ca1\u6709\u52a0\u8f7d\u8fc7\u6b64\u7c7b\uff0c\u5426\u5219\uff0c\u8bf4\u660e\u52a0\u8f7d\u8fc7\u3002<\/p>\n<pre><code>mirror::Class* ClassTable::Lookup(const char* descriptor, size_t hash)<\/code><\/pre>\n<p>\u83b7\u53d6\u6b64\u65b9\u6cd5\u5730\u5740\u7684\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li>\u52a0\u8f7dso\uff1aclass_table.cc\u5728libart.so\u4e2d\uff0c\u6240\u6709\u6211\u4eec\u9700\u8981\u7528dlopen\u52a0\u8f7dlibart.so\u83b7\u5f97\u6b64so\u7684handler\u3002\u5176\u5b9e\u5728\u52a0\u8f7d\u524d\uff0clibart.so\u5728\u5f53\u524d\u8fdb\u7a0b\u4e00\u5b9a\u5df2\u7ecf\u88ab\u52a0\u8f7d\u8fc7\u4e86\uff0c\u6b64\u6b21\u52a0\u8f7d\u53ea\u662f\u4e3a\u4e86\u83b7\u5f97handler\uff0c\u5e76\u4e0d\u8017\u65f6\uff1b<\/li>\n<li>\u7b26\u53f7\u8868\uff1a\u901a\u8fc7readelf\u67e5\u8be2Lookup\u7684\u7b26\u53f7\uff1a_ZN3art10ClassTable6LookupEPKcj\uff1b<\/li>\n<li>\u65b9\u6cd5\u6307\u9488\uff1a\u8c03\u7528dlsym\uff0c\u4f20\u5165handler\u548c\u7b26\u53f7\u8868\uff0c\u5373\u53ef\u4ee5\u627e\u5230Lookup\u65b9\u6cd5\u7684\u5730\u5740\uff1b<\/li>\n<\/ol>\n<p>\u6ce8\uff1a\u4ece7.0\u7cfb\u7edf\u5f00\u59cb\uff0cGoogle\u7981\u6b62\u4e86\u8c03\u7528\u7cfb\u7edfNative\u7684API\uff0c\u8fd9\u91cc\u6211\u4eec\u901a\u8fc7\/proc\/self\/maps\u627e\u5230libart.so\u7684\u5730\u5740\uff0c\u5c06\u91cc\u9762\u7684\u7b26\u53f7\u8868\u8fdb\u884c\u62f7\u8d1d\uff0c\u8fdb\u800c\u7ed5\u8fc7\u6b64\u9650\u5236\uff1b<\/p>\n<p>\u81f3\u6b64\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528ClassTable\u7684Lookup\u65b9\u6cd5\uff0c\u4f20\u5165\u7c7b\u540d\u548chash\u503c\uff0c\u5224\u65ad\u7c7b\u662f\u5426\u88ab\u52a0\u8f7d\u8fc7\u4e86\u3002<\/p>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<p>\u8fd9\u6837\uff0c\u6211\u4eec\u5c31\u80fd\u77e5\u9053\u67d0\u4e00\u65f6\u523b\u6709\u54ea\u4e9b\u7c7b\u88ab\u52a0\u8f7d\u8fc7\uff0c\u5bf9\u5176\u4e0a\u4f20\uff0c\u8fdb\u884c\u805a\u5408\u548c\u5904\u7406\uff0c\u518d\u901a\u8fc7\u5bf9\u6bd4\u6240\u6709\u7c7b\u540d\u5217\u8868\uff0c\u5c31\u80fd\u5f97\u5230\u4ee3\u7801\u8986\u76d6\u7387\u6570\u636e\u4e86\u3002\u6b64\u65b9\u6848\u4e0d\u9700\u8981\u63d2\u6869\uff0c\u6240\u4ee5\u53ef\u4ee5\u65e0\u635f\u5730\u91c7\u96c6\u8986\u76d6\u7387\u3002<\/p>\n<p><img src=\"http:\/\/p1.pstatp.com\/large\/pgc-image\/RTJXJ7YR5xGDl\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>\u65b0\u65b9\u6848\u6574\u4f53\u8bbe\u8ba1<\/strong><\/p>\n<p>\u4e0a\u9762\u63d0\u5230\u7684\u91c7\u96c6\u65b9\u6848\u662f\u6574\u4e2a\u65b9\u6848\u7684\u6838\u5fc3\uff0c\u9664\u6b64\u4e4b\u5916\u8fd8\u6709\u4e0a\u4e0b\u6e38\u7684\u914d\u5957\u6d41\u7a0b\uff0c\u6574\u4f53\u65b9\u6848\u7684\u8bbe\u8ba1\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img src=\"http:\/\/p3.pstatp.com\/large\/pgc-image\/RtqQ2uFJHNnWhP\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p>1)APK\u5206\u53d1\uff1a\u901a\u8fc7\u6784\u5efa\u4e2d\u5fc3\u6784\u5efa\u51fa\u6700\u65b0\u7684APK\uff0c\u5206\u53d1\u7ed9\u7528\u6237\uff1b<\/p>\n<p>2)\u89e6\u53d1\u91c7\u96c6\uff1a\u7528\u6237\u5b89\u88c5\u5e94\u7528\uff0c\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\uff0c\u5c06APP\u9000\u540e\u53f010s\u540e\uff0c\u901a\u8fc7\u91c7\u6837\u7387\u8ba1\u7b97\u662f\u5426\u547d\u4e2d\uff0c\u82e5\u547d\u4e2d\uff0c\u5219\u89e6\u53d1\u4ee3\u7801\u8986\u76d6\u7387\u91c7\u96c6<\/p>\n<p>3)\u914d\u7f6e\u4e0b\u53d1\uff1a\u5728\u9700\u8981\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u4e2d\u5fc3\u4e0b\u53d1\u914d\u7f6e\u6765\u52a8\u6001\u8c03\u6574\u529f\u80fd\u5f00\u5173\u3001\u91c7\u6837\u7387\u7b49\u914d\u7f6e\uff1b<\/p>\n<p>4)\u6570\u636e\u91c7\u96c6\uff1a\u4ee3\u7801\u8986\u76d6\u7387\u91c7\u96c6\u4e2d\u95f4\u4ef6\uff08SlimLady\uff09\u7edf\u8ba1\u51fa\u88ab\u52a0\u8f7d\u7684\u7c7b\uff0c\u5c06\u5df2\u52a0\u8f7d\u7684\u7c7b\u540d\u4fdd\u5b58\u5728\u6587\u4ef6\u4e2d\uff0c\u8fdb\u884c\u538b\u7f29\uff0c\u5c06\u538b\u7f29\u540e\u7684\u6570\u636e\u4f20\u7ed9\u4e0a\u4f20\u4e2d\u95f4\u4ef6\uff1b<\/p>\n<p>5)\u6570\u636e\u4e0a\u4f20\uff1a\u4e0a\u4f20\u4e2d\u95f4\u4ef6\u5c06\u6570\u636e\u4e0a\u4f20\u5230\u4e91\u7aef\uff1b<\/p>\n<p>6)\u6570\u636e\u4e0b\u8f7d\uff1a\u670d\u52a1\u5668\u5b9a\u671f\u5bf9\u4e91\u7aef\u6570\u636e\u8fdb\u884c\u4e0b\u8f7d\uff1b<\/p>\n<p>7)\u7c7b\u4fe1\u606f\u63d0\u4f9b\uff1a\u670d\u52a1\u5668\u4ece\u6784\u5efa\u4e2d\u5fc3\u83b7\u53d6\u7c7b\u4fe1\u606f\uff0c\u5305\u62ec\u6240\u6709\u7c7b\u540d\u5217\u8868\u548c\u6df7\u6dc6\u6587\u4ef6\uff1b<\/p>\n<p>8)\u6570\u636e\u89e3\u6790\uff1a\u670d\u52a1\u5668\u6309\u7248\u672c\u5bf9\u4ee3\u7801\u8986\u76d6\u7387\u6570\u636e\u8fdb\u884c\u89e3\u538b\u3001\u53cd\u6df7\u6dc6\u3001\u805a\u5408\u7edf\u8ba1\uff0c\u805a\u5408\u7edf\u8ba1\u540e\u7684\u7ed3\u679c\u5305\u542b\u4e86\u88ab\u52a0\u8f7d\u8fc7\u7684\u7c7b\u53ca\u6b21\u6570\uff0c\u4e0e\u6240\u6709\u7c7b\u540d\u5217\u8868\u8fdb\u884c\u5bf9\u6bd4\uff0c\u5373\u53ef\u4ee5\u77e5\u9053\u54ea\u4e9b\u7c7b\u6ca1\u6709\u88ab\u52a0\u8f7d\u8fc7\uff0c\u5c06\u7ed3\u679c\u4fdd\u5b58\u81f3\u6570\u636e\u5e93\uff1b<\/p>\n<p>9)\u7ed3\u679c\u805a\u5408\uff1a\u7f51\u9875\u7aef\u4ece\u6570\u636e\u5e93\u8bfb\u53d6\u805a\u5408\u7ed3\u679c\uff0c\u6309\u6a21\u5757\u5c55\u793a\u4ee3\u7801\u8986\u76d6\u7387\u3001\u6a21\u5757\u70ed\u5ea6\u3001\u6a21\u5757\u5927\u5c0f\u7b49\u4fe1\u606f\u3002<\/p>\n<p><img src=\"http:\/\/p1.pstatp.com\/large\/pgc-image\/RTJXJ7uHXU5GZc\" alt=\"\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848\" \/><\/p>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<p>\u672c\u65b9\u6848\u7a81\u7834\u4e86\u4f20\u7edf\u7684\u63d2\u6869\u57cb\u70b9\u7edf\u8ba1\uff0c\u52a8\u6001\u83b7\u53d6\u865a\u62df\u673a\u4fe1\u606f\uff0c\u65e0\u635f\u5730\u91c7\u96c6\u4ee3\u7801\u8986\u76d6\u7387\u3002\u6709\u4e86\u4ee3\u7801\u8986\u76d6\u7387\u6570\u636e\uff0c\u80fd\u505a\u7684\u6cbb\u7406\u6709\u5f88\u591a\uff0c\u4f8b\u5982\uff1a\u4e0b\u7ebf\u65e0\u7528\u4ee3\u7801\u3001\u6a21\u5757\uff1b\u7626\u8eab\u6216\u4e0b\u7ebf\u8c03\u7528\u4f4e\u9891\u3001\u4f53\u79ef\u5927\u7684\u6a21\u5757\uff1b\u5728\u96c6\u6210\u9636\u6bb5\u6dfb\u52a0\u4ee3\u7801\u8986\u76d6\u7387\u5361\u53e3\u7b49\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005 | \u963f\u91cc\u5df4\u5df4\u6587\u5a31\u9ad8\u7ea7\u65e0\u7ebf\u5f00\u53d1\u5de5\u7a0b\u5e08 \u5b59\u73d1\u8fbe \u8d23\u7f16 | \u5c60\u654f \u80cc\u666f \u4e3a\u4e86\u9002\u5e94\u4ea7\u54c1\u7684\u5feb\u901f\u8fed\u4ee3\uff0c\u901a\u5e38&hellip; <a href=\"http:\/\/www.anthonylee.cn\/myblog\/?p=110\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u548c\u65e0\u7528\u4ee3\u7801\u8bf4\u518d\u89c1\uff01\u963f\u91cc\u6587\u5a31\u65e0\u635f\u4ee3\u7801\u8986\u76d6\u7387\u7edf\u8ba1\u65b9\u6848<\/span><i class=\"fa 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