android linux\u9a71\u52a8<\/strong>\uff0c\u81f4\u4f7fLinuxdriver\u4e0eLinuxkernel\u5f7b\u5e95\u5206\u5f00\u3002Bionic\/Libc\/Kernel\/\u5e76\u975e\u6807\u51c6\u7684Kernelheaderfiles\u3002Android\u7684Kernelheader\u662f\u501f\u52a9\u5de5\u5177\u7531LinuxKernelheader\u6240\u5f62\u6210\u7684\uff0c\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u4fdd\u7559\u5e38\u6570\u3001\u8d44\u6599\u7ed3\u6784\u4e0e\u5de8\u96c6\u3002<\/p>\nAndroid\u7684Linuxkernel\u63a7\u5236\u5305\u62ec\u5b89\u5168\uff08Security\uff09\uff0c\u5b58\u50a8\u5668\u7ba1\u7406\uff08MemoryManagement\uff09\uff0c\u7a0b\u5f0f\u7ba1\u7406\uff08ProcessManagement\uff09\uff0c\u7f51\u7edc\u5806\u53e0\uff08NeorkStack\uff09\uff0c\u9a71\u52a8\u7a0b\u5f0f\u6a21\u578b\uff08DriverModel\uff09\u7b49\u3002\u4e0b\u8f7dAndroid\u539f\u59cb\u7801\u4e4b\u524d\uff0c\u5148\u8981\u5b89\u88c5\u5176\u5efa\u7acb\u5de5\u5177Repo\u6765\u521d\u59cb\u5316\u539f\u59cb\u7801\u3002Repo\u662fAndroid\u62ff\u6765\u8f85\u52a9Git\u5de5\u4f5c\u7684\u4e00\u4e2a\u5de5\u5177\u3002<\/p>\n
Linux\u548c\u5b89\u5353\u6709\u54ea\u4e9b\u5173\u7cfb\uff1f<\/p>\n
Linux\u4e0eAndrold\u7684\u5173\u7cfb<\/p>\n
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1\u5b89\u5353\u4e3a\u4f55\u4f1a\u9009\u62e9Linux<\/p>\n
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\uff081\uff09\u5f3a\u608d\u7684\u8bb0\u5fc6\u4f53\u7ba1\u7406\u548c\u7a0b\u5e8f\u7ba1\u7406\u65b9\u6848<\/p>\n
\uff082\uff09\u57fa\u4e8e\u8bb8\u53ef\u6743\u7684\u5b89\u5168\u6a21\u5f0f<\/p>\n
\uff083\uff09\u589e\u63f4\u5171\u4eab\u5e93<\/p>\n
<\/p>\n
\uff084\uff09\u7ecf\u8fc7\u8ba4\u8bc1\u7684\u9a71\u52a8\u6a21\u578b<\/p>\n
\uff085\uff09Linux\u672c\u8eab\u5c31\u662f\u5f00\u6e90\u4e13\u6848<\/p>\n
\u66f4\u591a\u5173\u4e8e\u4e0a\u8ff0\u7279\u70b9\u7684\u8d44\u8baf\u53ef\u4ee5\u53c2\u8003Linux2.6\u7248\u6838\u5fc3\u7684\u5b98\u65b9\u6587\u4ef6\uff0c\u8fd9\u4ee5\u4fbf\u6211\u4eec\u5728\u524d\u9762\u7684\u5b66\u4e60\u4e2d\u66f4\u597d\u5730\u7406\u89e3Android\u6240\u7279\u6709\u7684\u529f\u80fd\u7279\u70b9\u3002\u63a5\u51fa\u6765\u5256\u6790Android\u4e0eLinux\u771f\u6b63\u7684\u5173\u7cfb\u3002<\/p>\n
2Android\u4e0d\u662fLinu\u00d7<\/p>\n
\u770b\u89c1\u8fd9\u4e2a\u6807\u9898\u4f60\u4eec\u53ef\u80fd\u4f1a\u6709\u4e9b\u8499\u853d\uff0c\u4e0a\u9762\u4e0d\u662f\u59cb\u7ec8\u8bf4Android\u662f\u57fa\u4e8eLinux\u6838\u5fc3\u7684\u5417\uff0c\u5982\u4f55\u5982\u4eca\u53c8\u4e0d\u662fLinux\u4e86\uff1f\u8499\u853d\u4e5f\u662f\u6b63\u5e38\u7684\uff0c\u8bf7\u5148\u770b\u4e0b\u8fb9\u51e0\u4e2a\u8981\u70b9\uff0c\u4e4b\u540e\u6211\u4eec\u5c06\u5bf9\u6bcf\u4e00\u4e2a\u8981\u70b9\u8fdb<\/p>\n
\u884c\u5256\u6790\uff0c\u770b\u5b8c\u540e\u4f60\u624d\u4f1a\u8ba4\u4e3aAndroid\u4e0d\u662fLinux\u4e86\u3002<\/p>\n
\u2460\u5b83\u6ca1\u6709\u672c\u5730\u89c6\u7a97\u7cfb\u7edf<\/p>\n
\uff081\uff09\u5b83\u6ca1\u6709glibc\u7684\u589e\u63f4<\/p>\n
(2)\u5b83\u5e76\u4e0d\u5305\u62ec\u4e00\u6574\u5957\u6807\u51c6\u7684Linux\u4f7f\u7528\u7a0b\u5f0f<\/p>\n
(3)\u5b83\u63d0\u9ad8\u4e86Linux\u4ee5\u589e\u63f4\u5176\u7279\u6709\u7684\u9a71\u52a8<\/p>\n
1\u3001\u5b83\u6ca1\u6709\u672c\u5730\u89c6\u7a97\u7cfb\u7edf<\/p>\n
\u54ea\u4e9b\u662f\u672c\u5730\u89c6\u7a97\u7cfb\u7edf\u5462\uff1f\u672c\u5730\u89c6\u7a97\u7cfb\u7edf\u662f\u6307GNU\/Linux\u4e0a\u7684X\u89c6\u7a97\u7cfb\u7edf\uff0c\u6216\u5219MacOS\u7684Quartz\u7b49\u3002\u4e0d\u540c\u7684\u4f5c\u4e1a\u7cfb\u7edf\u7684\u89c6\u7a97\u7cfb\u7edf\u53ef\u80fd\u4e0d\u4e00\u6837\uff0cAndroid\u5e76\u6ca1\u6709\u4f7f\u7528\uff08\u4e5f\u4e0d\u987b\u8981\u4f7f\u7528\uff09Linux\u7684X\u89c6\u7a97\u7cfb\u7edf\uff0c\u8fd9\u662fAndroid\u4e0d\u662fLinux\u7684\u4e00\u4e2a\u57fa\u672c\u7f18\u7531\u3002<\/p>\n
2\u3001\u5b83\u6ca1\u6709glibc\u589e\u63f4<\/p>\n
\u56e0\u4e3aAndroid\u6700\u521d\u7528\u4e8e\u4e00\u4e9b\u4fbf\u643a\u7684\u8054\u901a\u88c5\u7f6e\u4e0a\uff0c\u6240\u4ee5\uff0c\u53ef\u80fd\u51fa\u4e8e\u6548\u7387\u7b49\u65b9\u9762\u7684\u8003\u8651\uff0cAndroid\u5e76\u6ca1\u6709\u91c7\u7528glibc\u4f5c\u4e3aC\u5e93\uff0c\u800c\u662fGoogle\u81ea\u5df1\u5f00\u53d1\u4e86\u4e00\u5957BionicLibc\u6765\u53d6\u4ee3glibc\u3002<\/p>\n
<\/p>\n
3\u3001\u5b83\u5e76\u4e0d\u5305\u62ec\u4e00\u6574\u5957\u6807\u51c6\u7684Linux\u4f7f\u7528\u7a0b\u5f0f<\/p>\n
Android\u5e76\u6ca1\u6709\u5b8c\u5168\u4eff\u6548Linux\u7cfb\u7edf\u7684\u6838\u5fc3\uff0c\u4e0d\u4ec5\u4fee\u6b63\u90e8\u4efdLinux\u7684Bug\u4e4b\u5916\uff0c\u8fd8\u964d\u4f4e\u4e86\u4e0d\u5c11\u5185\u5bb9\uff0c\u4f8b\u5982\uff1a\u5b83\u57fa\u4e8eARM\u67b6\u6784\u964d\u4f4e\u7684Gold-Fish\u5e73\u53f0\uff0c\u4ee5\u53cayaffs2FLASH\u6863\u6848\u7cfb\u7edf\u7b49\u3002<\/p>\n
4\u3001Android\u4e13\u6709\u7684\u9a71\u52a8\u7a0b\u5f0f<\/p>\n
\u4e0d\u4ec5\u91cc\u9762\u90a3\u4e9b\u4e0d\u540c\u70b9\u4e4b\u5916\uff0cAndroid\u8fd8\u5bf9Linux\u88c5\u7f6e\u9a71\u52a8\u8fdb\u884c\u4e86\u63d0\u9ad8\uff0c\u4e3b\u8981\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
(1)AndroidBinder\u57fa\u4e8eOpenBinder\u6846\u67b6\u7684\u4e00\u4e2a\u9a71\u52a8\uff0c\u7528\u4e8e\u63d0\u4f9bAndroid\u5e73\u53f0\u7684\u7a0b\u5e8f\u95f4\u901a\u4fe1(InterProcessCommunication\uff0cIPC)\u529f\u80fd\u3002\u539f\u59cb\u7801\u5750\u843d<\/p>\n
drivers\/staging\/android\/binder.c\u3002<\/p>\n
(2)Android\u7535\u6e90\u7ba1\u7406(PM)\u4e00\u4e2a\u57fa\u4e8e\u6807\u51c6Linux\u7535\u6e90\u7ba1\u7406\u7cfb\u7edf\u7684\u8f7b\u91cf\u7ea7Android\u7535\u6e90\u7ba1\u7406\u9a71\u52a8\uff0c\u9488\u5bf9\u5d4c\u5165\u5f0f\u88c5\u7f6e\u505a\u4e86\u597d\u591a\u4f18\u5316\u3002\u6e90\u4f10\u7801\u5750\u843d\uff1a<\/p>\n
\u2160kerneUpower\/earlysuspend.c<\/p>\n
\u2161kernel\/power\/consoleearlysuspend.c<\/p>\n
\u2162kernel\/power\/fbearlysuspend.c<\/p>\n
\u2163kemel\/power\/wakelock.c<\/p>\n
\u2164kernel\/power\/userwakelock.c<\/p>\n
(3)\u4f4e\u8bb0\u5fc6\u4f53\u7ba1\u7406\u5668(LowMemoryKiller)\u6bd4Linux\u7684\u6807\u51c6\u7684OOM\uff08OutOfMemory\uff09\u673a\u5236\u6108\u53d1\u7075\u6d3b\uff0c\u5b83\u53ef\u4ee5\u4f9d\u7167\u987b\u8981\u6740\u5bb3\u7a0b\u5e8f\u4ee5\u91ca\u653e\u987b\u8981\u7684\u8bb0\u5fc6\u4f53\u3002\u539f\u59cb\u7801\u5750\u843d<\/p>\n
drivers\/staging\/android\/lowmemorykiller.c.<\/p>\n
(4)\u533f\u540d\u5171\u4eab\u8bb0\u5fc6\u4f53(Ashmem)\u4e3a\u7a0b\u5e8f\u95f4\u63d0\u4f9b\u5927\u5757\u5171\u4eab\u8bb0\u5fc6\u4f53\uff0c\u540c\u65f6\u4e3a\u6838\u5fc3\u63d0\u4f9b\u56de\u6536\u548c\u7ba1\u7406\u8fd9\u4e2a\u8bb0\u5fc6\u4f53\u7684\u673a\u5236\u3002\u539f\u59cb\u7801\u5750\u843dmm\/ashmem\uff0ec\u3002<\/p>\n
(5)AndroidPMEM(Physical)PMEM\u7528\u4e8e\u5411\u7528\u6237\u7a7a\u95f4\u63d0\u4f9b\u8fde\u7eed\u7684\u5b9e\u4f53\u8bb0\u5fc6\u4f53\u533a\u57df\uff0cDSP\u548c\u4e2a\u522b\u88c5\u7f6e\u53ea\u80fd\u5de5\u4f5c\u5728\u8fde\u7eed\u7684\u5b9e\u4f53\u8bb0\u5fc6\u4f53\u4e0a\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/misc\/pmem.c\u3002<\/p>\n
(6)AndroidLogger-\u4e2a\u8f7b\u91cf\u7ea7\u7684\u65e5\u5fd7\u88c5\u7f6e\uff0c\u7528\u4e8e\u6293\u53d6Android\u7cfb\u7edf\u7684\u5404\u7c7b\u65e5\u5fd7\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/staging\/android\/logger.c\u3002<\/p>\n
(7)AndroidAlarm\u6349\u4f9b\u4e86\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u7528\u4e8e\u628a\u88c5\u7f6e\u4ece\u7761\u7720\u72b6\u6001\u5524\u8d77\uff0c\u540c\u65f6\u5b83\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u867d\u7136\u5728\u88c5\u7f6e\u7761\u7720\u65f6\u4e5f\u4f1a\u6267\u884c\u7684\u65f6\u949f\u57fa\u51c6\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/rtc\/alarm.c\u3002<\/p>\n
(8)USBGadget\u9a71\u52a8\u4e00\u4e2a\u57fa\u4e8e\u6807\u51c6LinuxUSBgadget\u9a71\u52a8\u6846\u67b6\u7684\u88c5\u7f6e\u9a71\u52a8\uff0cAndroid\u7684USB\u9a71\u52a8\u662f\u57fa\u4e8egaeget\u6846\u67b6\u7684\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/u***\/gadget\/\u3002<\/p>\n
(9)AndroidRamConsole\u4e3a\u4e86\u63d0\u4f9b\u9664\u9519\u529f\u80fd\uff0cAndroid\u5bb9\u8bb8\u5c06\u9664\u9519\u65e5\u5fd7\u8d44\u8baf\u5199\u5165\u4e00\u4e2a\u88ab\u79f0\u4e3aRAMConsole\u7684\u88c5\u7f6e\u91cc\uff0c\u5b83\u662f\u4e00\u4e2a\u57fa\u4e8eRAM\u7684Buffer\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/staging\/android\uff0framLconsole.c\u3002<\/p>\n
(10)Androidtimeddevice\u63d0\u4f9b\u4e86\u5bf9\u88c5\u7f6e\u8fdb\u884c\u5b9a\u65f6\u63a7\u5236\u7684\u529f\u80fd\uff0c\u76ee\u524d\u589e\u63f4vibrator\u548cLED\u88c5\u7f6e\u3002\u539f\u59cb\u7801\u5750\u843ddrivers\/staging\/android\/timed_output.c(timed_gpio.c)\u3002<\/p>\n
(11)Yaffs2\u6863\u6848\u7cfb\u7edfAndroid\u91c7\u7528Yaffs2\u4f5c\u4e3aMTDnandflash\u6863\u6848\u7cfb\u7edf\uff0c\u539f\u59cb\u7801\u5750\u843dfs\/yaffs2\/\u76ee\u5f55\u4e0b\u3002Yaffs2\u662f\u4e00\u4e2a\u5feb\u901f\u7a33\u5b9a\u7684\u5e94\u7528\u4e8eNAND\u548cNORFlash\u7684\u8de8\u5e73\u53f0\u7684\u5d4c\u5165\u5f0f\u88c5\u7f6e\u6863\u6848\u7cfb\u7edf\uff0c\u540c\u5176\u4ed6Flash\u6863\u6848\u7cfb\u7edf\u76f8\u6bd4\uff0cYaffs2\u80fd\u4f7f\u7528\u66f4\u5c0f\u7684\u8bb0\u5fc6\u4f53\u6765\u5b58\u50a8\u5176\u6267\u884c\u72b6\u6001\uff0c\u56e0\u800c\u5b83\u5360\u7528\u8bb0\u5fc6\u4f53\u5c0f\u3002Yaffs2\u7684\u5783\u573e\u56de\u6536\u5341\u5206\u7b80\u5355\u5e76\u4e14\u5feb\u901f\uff0c\u56e0\u800c\u80fd\u8868\u73b0\u51fa\u66f4\u597d\u7684\u6548\u80fd\u3002Yaffs2\u5728\u5927\u5bb9\u91cf\u7684NANDFlash\u4e0a\u7684\u6548\u80fd\u8868\u73b0\u5c24\u4e3a\u7a81\u51fa\uff0c\u7279\u522b\u9002\u5b9c\u5927\u5bb9\u91cf\u7684Flash\u5b58\u653e\u3002\u91cc\u9762\u90a3\u4e9b\u8981\u70b9\u8db3\u4ee5\u8bf4\u660eAndroid\u4e0d\u662fLinux\u3002<\/p>\n
Linux\u4e0eAndrold\u7684\u5173\u7cfb<\/p>\n
\u5c3d\u7ba1Android\u57fa\u4e8eLinux\u6838\u5fc3\uff0c\u5e76\u4e14\u5b83\u4e0eLinux\u4e4b\u95f4\u8fd8\u662f\u6709\u5f88\u5927\u7684\u5dee\u5f02\uff0c\u4f8b\u5982Android\u5728Linux\u6838\u5fc3\u7684\u57fa\u7840\u4e0a\u6dfb\u52a0\u4e86\u81ea\u5df1\u6240\u7279\u6709\u7684\u9a71\u52a8\u7a0b\u5f0f\u3002<\/p>\n
Ubuntu\u4e0eLinux\u6709\u54ea\u4e9b\u5173\u7cfb<\/p>\n
\u6b63\u5982ls\u6240\u8bf4\uff0clinux\u6709\u8bb8\u591a\u53d1\u884c\u7248\u672c\uff0c\u4f8b\u5982redhat,debian,suse\u7b49\u3002\u6240\u4ee5\u8bf4debian\u662flinux\u7684\u4e00\u4e2a\u53d1\u884c\u7248\u672c\uff0c\u800cubuntu\u662fdebian\u7684\u4e00\u4e2a\u884d\u751f\u7248\u672c\u3002<\/p>\n
AndroidSystemWebView\u4e0e\u5b89\u53537.0\u4e4b\u95f4\u6709\u54ea\u4e9b\u5173\u7cfb<\/p>\n
1.\u4e3b\u9898\u9762\u677f\u7ba1\u7406\u5668<\/p>\n
<\/p>\n
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