{"id":290650,"date":"2024-03-30T21:25:16","date_gmt":"2024-03-30T13:25:16","guid":{"rendered":"https:\/\/lrxjmw.cn\/lnhmktmdtzqx.html"},"modified":"2024-03-30T21:25:16","modified_gmt":"2024-03-30T13:25:16","slug":"lnhmktmdtzqx","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/lnhmktmdtzqx.html","title":{"rendered":"Linux\u5185\u6838\u6a21\u5757\uff1a\u63a2\u79d8\u52a8\u6001\u589e\u5f3a\u7cfb\u7edf\u529f\u80fd\u7684\u795e\u5947\u4e4b\u65c5"},"content":{"rendered":"

1.\u4ec0\u4e48\u662fLinux<\/a>\u5185\u6838\u6a21\u5757<\/b><\/p>\n

\u4e13\u6ce8\u4e8e\u6df1\u5165\u63a2\u7d22Linux\u5185\u6838\u6a21\u5757\u4e4b\u524d\uff0c\u5fc5\u9700\u9996\u5148\u660e\u786e\u4f55\u4e3a\u5185\u6838\u6a21\u5757\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u5b83\u4e43\u662f\u4e00\u7c7b\u80fd\u6839\u636e\u9700\u6c42\u52a8\u6001\u8f7d\u5165\u81f3Linux\u6838\u5fc3\u4e2d\u7684\u8f6f\u4ef6\u7a0b\u5e8f\uff0c\u65e8\u5728\u589e\u5f3a\u5185\u6838\u529f\u80fd\u3002\u5176\u4e2d\uff0c\u8fd9\u79cd\u6a21\u5757\u53ef\u5728\u7cfb\u7edf<\/a>\u8fd0\u4f5c\u8fc7\u7a0b\u4e2d\u968f\u65f6\u8fdb\u884c\u88c5\u8f7d\u4e0e\u5378\u8f7d\uff0c\u5b8c\u5168\u65e0\u9700\u91cd\u542f\u7cfb\u7edf\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u6a21\u5757\u7684\u7075\u6d3b\u6027\u4f7f\u5176\u6210\u4e3a\u4e86\u62d3\u5c55Linux\u6838\u5fc3\u529f\u80fd\u540c\u65f6\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u5173\u952e\u624b\u6bb5\u3002<\/p>\n

Linux\u7cfb\u7edf\u5185\u6838\u5e38\u7528.ko\u6587\u4ef6\u6765\u5b58\u653e\u5176\u6a21\u5757\uff0c\u5176\u4e2d\u5305\u62ec\u65e9\u5df2\u786e\u5b9a\u597d\u7684\u529f\u80fd\u4ee3\u7801\u4e0e\u76f8\u5173\u6570\u636e\u7ed3\u6784\u3002\u501f\u52a9\u4e8e\u8fd9\u4e9b\u6a21\u5757\uff0c\u6211\u4eec\u80fd\u591f\u65b0\u589e\u66f4\u591a\u9a71\u52a8\u7a0b\u5e8f\uff0c\u6269\u5c55\u6587\u4ef6\u7cfb\u7edf\u652f\u6301\uff0c\u4ee5\u53ca\u7f51\u7edc\u534f\u8bae\u7b49\uff0c\u8fdb\u800c\u4f7fLinux\u7cfb\u7edf\u66f4\u5177\u591a\u6837\u6027\uff0c\u4e14\u80fd\u66f4\u597d\u5730\u9002\u5e94\u5404\u79cd\u786c\u4ef6\u8bbe\u5907\u73af\u5883\u3002<\/p>\n

\u5728\u73b0\u5b9e\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u5f00\u53d1\u8005\u53ef\u4f9d\u636e\u5b9e\u9645\u9700\u8981\u81ea\u7f16\u5185\u6838\u6a21\u5757\uff0c\u7136\u540e\u901a\u8fc7\u52a0\u8f7d\u8fd9\u4e9b\u6a21\u5757\u4ee5\u5b9e\u73b0\u7279\u6b8a\u529f\u80fd\u6216\u89e3\u51b3\u5404\u7c7b\u95ee\u9898\u3002\u6545\u800c\uff0c\u6df1\u523b\u628a\u63e1Linux\u5185\u6838\u6a21\u5757\u7684\u57fa\u672c\u7406\u8bba\u53ca\u8fd0\u4f5c\u673a\u5236\u5bf9\u6d1e\u6089\u7cfb\u7edf\u8fd0\u884c\u4e0e\u4e2a\u6027\u5316\u5b9a\u5236\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

2. Linux\u5185\u6838\u6a21\u5757\u7684\u52a0\u8f7d\u4e0e\u5378\u8f7d<\/b><\/p>\n

\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u638c\u63e1\u6838\u5fc3\u6a21\u5757\u7684\u52a0\u8f7d\u4e0e\u5378\u8f7d\u81f3\u5173\u91cd\u8981\uff0c\u8fd9\u662f\u6709\u6548\u7ba1\u7406\u5185\u6838\u6a21\u5757\u7684\u91cd\u8981\u73af\u8282\u3002\u5982\u679c\u9700\u8981\u52a0\u8f7d\u6a21\u5757\uff0c\u53ef\u901a\u8fc7\u4f7f\u7528insmod\u6307\u4ee4\u5b9e\u73b0\uff0c\u6b64\u6307\u4ee4\u80fd\u5c06\u76f8\u5e94\u7684.ko\u6587\u4ef6\u76f4\u63a5\u63a5\u5165\u5230\u6d3b\u52a8\u5185\u6838\u4e2d\uff0c\u4ece\u800c\u5373\u65f6\u4ea7\u751f\u6548\u76ca\uff1b\u800c\u5378\u8f7d\u52a0\u8f7d\u8fc7\u7684\u5185\u6838\u6a21\u5757\u5219\u9700\u91c7\u7528rmmod\u6307\u4ee4\uff0c\u5b83\u80fd\u591f\u628a\u6307\u5b9a\u6a21\u5757\u4ece\u5185\u6838\u4e2d\u5f7b\u5e95\u5265\u79bb\u51fa\u6765\u3002<\/p>\n

\u6b64\u5916\uff0cmodprobe\uff08\u5185\u6838\u6a21\u5757\u7ba1\u7406\u5de5\u5177\uff09\u5728\u7cfb\u7edf\u4e2d\u8d77\u5230\u4e86\u5173\u952e\u4f5c\u7528\u3002\u8be5\u547d\u4ee4<\/a>\u5177\u5907\u81ea\u52a8\u5904\u7406\u4f9d\u8d56\u5173\u7cfb\u4ee5\u53ca\u63d0\u4f9b\u7b80\u4fbf\u6613\u7528\u64cd\u4f5c\u754c\u9762\u7b49\u7279\u70b9\u3002\u501f\u7531\u8fd9\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u7528\u6237\u80fd\u591f\u66f4\u6709\u6548\u5730\u638c\u63a7\u8bbe\u5907\u4e2d\u7684\u5404\u79cd\u5185\u6838\u6a21\u5757\u3002<\/p>\n

\u5bf9\u4e8e\u90a3\u4e9b\u9700\u8981\u957f\u671f\u8fd0\u884c\u5e76\u9700\u5728\u6bcf\u6b21\u5f00\u673a\u65f6\u81ea\u52a8\u52a0\u8f7d\u7684\u6838\u5fc3\u6a21\u5757\uff0c\u53ef\u901a\u8fc7\u7f16\u8f91\/etc\/modules\u6587\u4ef6\u6765\u5b8c\u6210\u6b64\u4efb\u52a1\u3002\u5982\u6b64\uff0c\u5f53\u7cfb\u7edf\u542f\u52a8\u65f6\uff0c\u8fd9\u4e9b\u6838\u5fc3\u6a21\u5757\u4fbf\u4f1a\u81ea\u52a8\u52a0\u8f7d\uff0c\u4ece\u800c\u907f\u514d\u4e86\u624b\u52a8\u64cd\u4f5c\u6240\u5e26\u6765\u7684\u4e0d\u4fbf\u548c\u7e41\u7410\u3002<\/p>\n

3. Linux\u5185\u6838\u7b26\u53f7\u8868\u4e0e\u5bfc\u51fa\u7b26\u53f7<\/b><\/p>\n

\u5728\u5185\u6838\u6a21\u5757\u7684\u7f16\u5199\u4e0e\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u5bf9Linux\u5185\u6838\u7b26\u53f7\u8868\u53ca\u5176\u5bfc\u51fa\u7b26\u53f7\u7684\u7406\u89e3\u81f3\u5173\u91cd\u8981\u3002\u5185\u6838\u7b26\u53f7\u8868\u6db5\u76d6\u4e86\u5185\u6838\u6e90\u7801\u4e2d\u7684\u51fd\u6570\u3001\u53d8\u91cf\u7b49\u5404\u7c7b\u7b26\u53f7\u4fe1\u606f\uff0c\u800c\u5bfc\u51fa\u7b26\u53f7\u5373\u4e3a\u5176\u4ed6\u4ee3\u7801\u6240\u5f15\u7528\u7684\u53ef\u4f9b\u8c03\u7528\u7684\u7b26\u53f7\uff0c\u5bf9\u4e8e\u7f16\u5199\u53ef\u7531\u5176\u4ed6\u6a21\u5757\u8c03\u7528\uff0c\u6216\u662f\u5411\u5176\u4ed6\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u63a5\u53e3\u6765\u8bf4\uff0c\u9887\u5177\u5b9e\u7528\u4ef7\u503c\u3002<\/p>\n

\u501f\u52a9\u5bfc\u51fa\u7b26\u53f7\u7cfb\u7edf\u7684\u8fd0\u7528\uff0c\u5f00\u53d1\u8005\u5f97\u4ee5\u5411\u5916\u90e8\u7ec4\u4ef6\u6d41\u4f20\u5176\u81ea\u521b\u51fd\u6570\u53ca\u5143\u7d20\uff0c\u4ee5\u6b64\u6765\u8fbe\u5230\u4ee3\u7801\u91cd\u7528\u4ee5\u53ca\u529f\u80fd\u6269\u5145\u7684\u76ee\u6807\u3002\u7136\u800c\uff0c\u5728\u7f16\u7ece\u8fc7\u7a0b\u4e2d\uff0c\u4ec5\u9700\u5c06\u8ba1\u5212\u5916\u8f93\u4e4b\u7b26\u53f7\u5408\u7406\u6807\u6ce8\u6210\u8bf8\u5982EXPORT_SYMBOL\u6216EXPORT_SYMBOL_GPL\u8fd9\u6837\u7684\u5b8f\u6307\u4ee4\uff0c\u4fbf\u80fd\u786e\u4fdd\u76f8\u5173\u7b26\u53f7\u80fd\u88ab\u5176\u5b83\u7a0b\u5f0f\u6070\u5f53\u8bc6\u522b\u4e0e\u547c\u53eb\u3002<\/p>\n

4.\u5185\u6838\u7a7a\u95f4\u4e0e\u7528\u6237\u7a7a\u95f4\u901a\u4fe1<\/b><\/p>\n

\u5173\u4e8e\u5982\u4f55\u5728\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u548c\u8fd0\u884c\u5728\u5185\u6838\u7a7a\u95f4\u7684Linux\u5185\u6838\u6a21\u5757\u4e4b\u95f4\u5efa\u7acb\u901a\u4fe1\uff0c\u5b58\u5728\u7740\u4e00\u9879\u81f3\u5173\u7d27\u8981\u4e14\u9887\u4e3a\u7e41\u6742\u7684\u6311\u6218\u3002\u4e3b\u8981\u539f\u56e0\u5728\u4e8e\uff0c\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u88ab\u4e25\u683c\u5206\u9694linux\u5185\u6838\u6a21\u5757<\/strong>\uff0c\u5404\u6709\u5404\u7684\u6743\u9650\u7b49\u7ea7\uff0c\u76f8\u4e92\u76f4\u63a5\u4ea4\u6d41\u96be\u5ea6\u8f83\u5927\u3002\u7136\u800c\uff0c\u9762\u5bf9\u8fd9\u4e00\u56f0\u5883\uff0cLinux\u5df2\u7ecf\u5177\u5907\u4e00\u5957\u5b8c\u5907\u7684\u673a\u5236\u6765\u786e\u4fdd\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u4e4b\u95f4\u7684\u9ad8\u6548\u5b89\u5168\u901a\u8baf\u3002<\/p>\n

\u5e38\u7528\u4e14\u7075\u6d3b\u5ea6\u9ad8\u7684\u4f1a\u8bdd\u6e20\u9053\u5305\u62ec\u7cfb\u7edf\u8c03\u7528\uff08SYScall\uff09\u3002\u5728\u7528\u6237\u7a7a\u95f4\u4e2d\uff0c\u7cbe\u5fc3\u8bbe\u7f6e\u52a8\u4f5c\u548c\u4ee5\u5f80\u7684\u7ecf\u9a8c\u4e3a\u4f9d\u6258\uff0c\u76f8\u5173\u53c2\u6570\u53ef\u900f\u8fc7\u8be5\u65b9\u6cd5\u4f20\u9012\u81f3\u5185\u6838\u7a7a\u95f4\uff0c\u542f\u52a8\u6267\u884c\u76f8\u5e94\u529f\u80fd\uff1b\u5bf9\u4e8e\u7e41\u6742\u6570\u636e\u67b6\u6784\u53ca\u5927\u91cf\u8d44\u6599\u4f20\u8f93\uff0cioctl\u7b49\u901a\u9053\u4ea6\u80fd\u5b9e\u73b0\u4fe1\u606f\u6c9f\u901a\u3002<\/p>\n

linux\u5185\u6838\u6a21\u5757_linux\u5185\u6838\u7248_\u5185\u6838\u6a21\u5757\u7b7e\u540d<\/p>\n

\u56e0\u9700\uff0c\u6211\u4eec\u6709\u65f6\u4f1a\u8fd0\u7528 proc \u6216 sysfs \u7b49\u7279\u5b9a\u6587\u4ef6\u7cfb\u7edf\u67b6\u6784\uff0c\u4ee5\u8fbe\u5230\u7528\u6237\u4e0e\u6838\u5fc3\u7a7a\u95f4\u95f4\u7684\u6709\u6548\u4fe1\u606f\u4ea4\u6362\u3002\u8fd9\u4e9b\u6587\u4ef6\u7cfb\u7edf\u4e3a\u6570\u636e\u4f20\u8f93\u53ca\u72b6\u6001\u5171\u4eab\u63d0\u4f9b\u4e86\u6807\u51c6\u5316\u548c\u4fbf\u6377\u5316\u7684\u9014\u5f84\u3002<\/p>\n

5.\u5185\u5b58\u7ba1\u7406\u4e0e\u8d44\u6e90\u5206\u914d<\/b><\/p>\n

\u5728\u6784\u9020\u4e0e\u7f16\u5236Linux\u5185\u6838\u6a21\u5757\u8fc7\u7a0b\u4e2d\uff0c\u59a5\u5584\u8c03\u914d\u5b58\u50a8\u5668\u7b49\u8d44\u6e90\u81f3\u5173\u7d27\u8981\u3002\u9274\u4e8e\u5176\u4f4d\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u5e95\u5c42\uff0c\u8d44\u6e90\u8bef\u7528\u6216\u4e0d\u5f53\u914d\u7f6e\u6781\u6613\u5f15\u53d1\u7cfb\u7edf\u5d29\u6e83\u4e43\u81f3\u5b89\u5168\u5371\u673a\u3002<\/p>\n

\u9488\u5bf9\u5404\u7c7b\u590d\u6742\u9700\u6c42\u4e0e\u5e94\u7528\u573a\u666f\uff0cLinux\u7cfb\u7edf\u4e3a\u5f00\u53d1\u8005\u51c6\u5907\u4e86\u591a\u6837\u5316\u7684\u8d44\u6e90\u5206\u914d\u4e0e\u91ca\u653e\u7b56\u7565\u3002\u4e3e\u4f8b\u800c\u8a00\uff0c\u5982\u9700\u83b7\u53d6\u53ef\u7528\u8fde\u7eed\u7269\u7406\u9875\u6846\uff0c\u53ef\u9009\u7528get_free_pages\u51fd\u6570\uff1b\u82e5\u53ea\u9700\u4f4e\u5bb9\u91cf\u8fde\u7eed\u7269\u7406\u9875\u6846\uff0c\u5219\u5efa\u8bae\u9009\u62e9kmalloc\u529f\u80fd\uff1b\u5018\u82e5\u8bc9\u6c42\u66f4\u9ad8\u5bb9\u91cf\u8fde\u7eed\u7269\u7406\u9875\u6846\uff0c\u90a3\u4e48\u5efa\u8bae\u4f18\u5148\u8003\u8651\u4f7f\u7528vmalloc\u51fd\u6570\u3002<\/p>\n

\u9664\u4e86\u4e0a\u8ff0\uff0c\u8fd8\u5fc5\u987b\u5bf9\u8d44\u6e90\u7684\u91ca\u653e\u8fdb\u884c\u59a5\u5584\u7ba1\u7406\uff0c\u4ee5\u514d\u8d44\u6e90\u6cc4\u9732\u548c\u53cd\u590d\u91ca\u653e\u7b49\u610f\u5916\u60c5\u51b5\u53d1\u751f\u3002\u51c6\u786e\u91ca\u653e\u5df2\u88ab\u5206\u914d\u7684\u8d44\u6e90\uff0c\u675c\u7edd\u60ac\u6302\u6307\u9488\u73b0\u8c61\uff0c\u8fd9\u4e9b\u90fd\u6620\u5c04\u4e86\u7cfb\u7edf\u7a33\u5b9a\u7684\u6838\u5fc3\u73af\u8282\u3002<\/p>\n

6.\u5185\u6838\u8c03\u8bd5\u6280\u672f<\/b><\/p>\n

\u9ad8\u6548\u7cbe\u51c6\u7684\u8c03\u8bd5\u6280\u80fd\u662fLinux\u5185\u6838\u6a21\u5757\u7f16\u7a0b\u4e2d\u7684\u5173\u952e\u6280\u5de7\u4e4b\u4e00\uff0c\u5c24\u5176\u9762\u5bf9\u5404\u7c7b\u95ee\u9898\u4e0e\u60c5\u51b5\u65f6\uff0c\u591a\u5143\u5316\u7684\u8c03\u8bd5\u6280\u672f\u6709\u5fc5\u8981\u8fd0\u7528\u63d0\u5347\u6392\u67e5\u4e0e\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n

\u901a\u5e38\u91c7\u7528\u7684\u51e0\u79cd\u79d1\u5b66\u65b9\u6cd5\u4e2d\u6700\u4e3a\u57fa\u7840\u4e14\u666e\u53ca\u7684\u5373\u662f\u6253\u5370\u8c03\u8bd5\u4fe1\u606f\uff08printk\uff09linux\u5185\u6838\u6a21\u5757<\/strong>\uff0c\u4ee5\u6b64\u83b7\u53d6\u76f8\u5173\u53d8\u91cf\u6570\u503c\u53ca\u6267\u884c\u8def\u5f84\u4fe1\u606f\uff0c\u501f\u4ee5\u76d1\u89c6\u7a0b\u5e8f\u8fd0\u884c\u72b6\u51b5\u5e76\u5728\u51fa\u73b0\u5f02\u5e38\u65f6\u8fc5\u901f\u5b9a\u4f4d\u95ee\u9898\u6240\u5728\u3002\u5176\u6b21\uff0c\u5229\u7528GDB\u8c03\u8bd5\u5668\u4e0e\u914d\u5957\u7684 kgdb \u5de5\u5177\u8fd8\u80fd\u5b9e\u73b0\u8fdc\u7aef\u8c03\u8bd5\u4e43\u81f3\u9010\u884c\u8ffd\u8e2a\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n

linux\u5185\u6838\u6a21\u5757_\u5185\u6838\u6a21\u5757\u7b7e\u540d_linux\u5185\u6838\u7248<\/p>\n

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