{"id":4185,"date":"2022-11-01T11:22:39","date_gmt":"2022-11-01T03:22:39","guid":{"rendered":"https:\/\/blog.coderfan.org\/?p=4185"},"modified":"2023-04-23T16:32:02","modified_gmt":"2023-04-23T08:32:02","slug":"android12-kernel-compile-and-start","status":"publish","type":"post","link":"https:\/\/blog.coderfan.org\/en\/android12-kernel-compile-and-start.html","title":{"rendered":"Android12 Kernel\u7f16\u8bd1\u4e0e\u542f\u52a8"},"content":{"rendered":"
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\n \t<\/i> Read Time:<\/span>3 Minute, 51 Second <\/div>\n\n <\/div>\n

\u5728Android\u7cfb\u7edf\u4e2d\uff0c\u5176\u6240\u4f7f\u7528\u7684Kernel\u662f\u5728Linux Kernel\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86Android\u72ec\u6709\u7684\u5185\u5bb9\uff0c\u5982binder\u9a71\u52a8\u7b49\u3002\u540c\u65f6Kernel\u4ee3\u7801\u4e5f\u5e76\u975e\u5728AOSP\u7684\u6e90\u7801\u5185\uff0c\u800c\u662f\u4e00\u4e2a\u5355\u72ec\u7684repo\u3002\u5728AOSP\u6e90\u7801\u4e2d,\u5185\u6838\u5747\u4e3a\u7f16\u8bd1\u597d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u7528\u6237\u662f\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u7684\u3002\u4f46\u6709\u4e9b\u65f6\u5019\u6211\u4eec\u4e0d\u5f97\u4e0d\u5355\u72ec\u7f16\u8bd1Android Kernel\u6765\u5b9e\u73b0\u81ea\u5df1\u7684\u9700\u8981\uff0c\u5982\u6d89\u53ca\u5230\u9a71\u52a8\u4fee\u6539\u7b49\u3002\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u5373\u662f\u5bf9\u6b64\u7684\u4e00\u4e2a\u7b80\u5355\u8bb0\u5f55\u3002<\/p>\n\n\n\n

\u5177\u4f53\u7684\u5185\u6838\u7f16\u8bd1\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/p>\n\n\n\n

1\uff09\u62c9\u53d6\u6e90\u7801<\/p>\n\n\n\n

1.mkdir android-kernel && cd android-kernel<\/p>\n\n\n\n

2.repo init -u https:\/\/android.googlesource.com\/kernel\/manifest<\/a>\uff0c\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528-b\u53c2\u6570\u6765\u6307\u5b9a\u5177\u4f53\u7684\u5206\u652frepo sync\u62c9\u53d6\u4ee3\u7801<\/p>\n\n\n\n

3.repo sync -j8 \u8fdb\u884c\u62c9\u53d6<\/p>\n\n\n\n

\u62c9\u53d6\u5b8c\u6210\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5176\u6e90\u7801\u7ec4\u7ec7\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n

total 48\ndrwxrwxr-x 12 FranzKafka FranzKafka 4096 Oct 20  2022 .\ndrwxr-xr-x 37 FranzKafka FranzKafka 4096 Apr 23 16:10 ..\ndrwxrwxr-x  7 FranzKafka FranzKafka 4096 Oct 20  2022 build\ndrwxrwxr-x 25 FranzKafka FranzKafka 4096 Oct 20  2022 common\ndrwxrwxr-x  3 FranzKafka FranzKafka 4096 Oct 20  2022 common-modules\ndrwxrwxr-x  3 FranzKafka FranzKafka 4096 Oct 20  2022 hikey-modules\ndrwxrwxr-x  4 FranzKafka FranzKafka 4096 Oct 20  2022 kernel\ndrwxrwxr-x  3 FranzKafka FranzKafka 4096 Oct 20  2022 out\ndrwxrwxr-x  5 FranzKafka FranzKafka 4096 Oct 20  2022 prebuilts\ndrwxrwxr-x  3 FranzKafka FranzKafka 4096 Oct 20  2022 prebuilts-master\ndrwxrwxr-x  7 FranzKafka FranzKafka 4096 Oct 20  2022 .repo\ndrwxrwxr-x  3 FranzKafka FranzKafka 4096 Oct 20  2022 tools<\/code><\/pre>\n\n\n\n
\u5927\u90e8\u5206\u6e90\u7801\u90fd\u4f4d\u4e8ecommon\u76ee\u5f55\u4e2d\uff0c\u800ccommon-modules\u4e2d\u4e5f\u5305\u542b\u90e8\u5206\u865a\u62df\u5316\u76f8\u5173\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n
2\uff09\u6e90\u7801\u7f16\u8bd1<\/p>\n\n\n\n
\u5728Android11\u4e4b\u540e\uff0c\u5185\u6838\u7f16\u8bd1\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206:GKI\u5185\u6838\u90e8\u5206<\/strong>\u4e0e\u53ef\u52a8\u6001\u914d\u7f6e\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u90e8\u5206<\/strong>\uff0c\u5176\u4e2dGKI\u4e3aGoogle\u7ef4\u62a4\u7684\u901a\u7528\u5185\u6838\u90e8\u5206\uff0c\u800c\u53ef\u52a8\u6001\u914d\u7f6e\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u90e8\u5206\u5219\u662f\u7531\u4f9b\u5e94\u5546\u6216\u8005\u7b2c\u4e09\u65b9\u81ea\u7531\u914d\u7f6e\u7684\u90e8\u5206\u3002<\/p>\n\n\n\n
\u4e3a\u4ec0\u4e48\u9700\u8981\u8fd9\u6837\u5206\u914d\u5462\uff0c\u8fd9\u662f\u56e0\u4e3a\u539f\u672c\u7684Android Kernel\u5c5e\u4e8e\u5b8f\u5185\u6838\uff0c\u5176\u7ec4\u6210\u5305\u62ec\u4ee5\u4e0b\u51e0\u90e8\u5206\uff1a<\/p>\n\n\n\n
1.\u6765\u6e90\u4e8eLinux Kernel\u7684\u4e0a\u6e38\u4ee3\u7801<\/strong><\/p>\n\n\n\n
2.\u6765\u6e90\u4e8eAOSP\u901a\u7528\u5185\u6838\u4e2d\u9488\u5bf9Android\u4e13\u7528\u7684\u5185\u6838\u4ee3\u7801<\/strong><\/p>\n\n\n\n
3.\u6765\u6e90\u4e8e\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684Soc\u5916\u56f4\u8bbe\u5907\u652f\u6301\u4ee3\u7801\uff08\u4e3b\u8981\u662f\u5916\u56f4\u8bbe\u5907\u7684\u9a71\u52a8\u652f\u6301\uff09<\/strong><\/p>\n\n\n\n
4.\u6765\u6e90\u4e8e\u8bbe\u5907\u5236\u9020\u5546\uff08Soc\u5f00\u53d1\u65b9\uff09\u7684\u5176\u4ed6\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u6216\u8005\u81ea\u52a8\u6539\u52a8\u4ee3\u7801<\/strong><\/p>\n\n\n\n
\u4e8b\u5b9e\u4e0a\u6765\u6e90\u4e8e3,4\u7684\u4ee3\u7801\u5728Android Kernel\u4e2d\u5360\u7528\u8fbe\u523050%\u4ee5\u4e0a\u3002\u8fd9\u5bfc\u81f4Android\u5185\u6838\u66f4\u65b0\u76f8\u5f53\u56f0\u96be\uff0c\u5c24\u5176\u662f\u5f53\u4e0a\u6e38\u5b58\u5728\u91cd\u5927\u66f4\u65b0\u65f6\u3002\u5728\u5f15\u5165GKI\u540e\uff0c\u6765\u6e90\u4e8e\u4e0a\u6e38Linux\u5185\u6838\u7684\u4ee3\u7801\u4e0eGoogle\u81ea\u8eab\u7ef4\u62a4\u652f\u6301\u7684\u4ee3\u7801\u5c06\u88ab\u96c6\u4e2d\u6253\u5305\uff0c\u800c\u5269\u4e0b\u7684\u90e8\u5206\u5219\u53ef\u4ee5\u4ee5\u6a21\u5757\u914d\u7f6e\u7684\u5f62\u5f0f\u5b58\u5728\uff0c\u53ef\u4ee5\u81ea\u7531\u88c1\u526a\uff0c\u8fd9\u6837\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u5b9e\u73b0\u89e3\u8026\u7684\u76ee\u7684\u3002<\/p>\n\n\n\n
GKI\uff08General Kernel Image\uff09\u672c\u8eab\u57fa\u4e8eACK(Android Common Kernel)\u6765\u6e90\u8fdb\u884c\u6784\u5efa\u3002<\/p>\n\n\n\n
\u6211\u4eec\u9996\u5148\u9700\u8981\u7f16\u8bd1GKI\u90e8\u5206\uff0c\u5982\u7f16\u8bd1x86_64\u7684GKI\u90e8\u5206\uff1a<\/p>\n\n\n\n
BUILD_CONFIG=common\/build.config.gki.x86_64 build\/build.sh<\/code><\/pre>\n\n\n\n
\u518d\u7f16\u8bd1\u7b2c\u4e09\u65b9\u6a21\u5757\uff08\u6b64\u5904\u4ee5cuttlefish\u4e3a\u4f8b\uff09\u90e8\u5206\uff0c\u5176\u5b9e\u73b0\u4ee3\u7801\u5747\u4f4d\u4e8ecommon-modules\u76ee\u5f55\u5185\uff1a<\/p>\n\n\n\n
BUILD_CONFIG=common-modules\/virtual-device\/build.config.virtual_device.x86_64 build\/build.sh<\/code><\/pre>\n\n\n\n
\u65e0\u8bba\u662f\u7f16\u8bd1GKI\u8fd8\u662f\u6a21\u5757\u90e8\u5206\uff0c\u90fd\u4f9d\u8d56\u4e8e\u5177\u4f53\u7684config\u914d\u7f6e<\/p>\n\n\n\n
\u7f16\u8bd1\u751f\u6210\u7684\u4ea7\u7269\u4f4d\u4e8eout\/BRANCH_NAME\/dist\/\u76ee\u5f55\u4e0b\uff0c\u8fd9\u91cc\u9762\u5305\u542b\u5f88\u591ako\u6587\u4ef6\u4e0einitramfs.img\u3001bzImage\uff08x86\u7cfb\u7edf\uff09\u6216\u8005Image\uff08arm\u7cfb\u7edf\uff09\uff0c\u4e4b\u540e\u6211\u4eec\u9700\u8981\u6253\u5305\u6210\u4e3aboot.img\u3002<\/p>\n\n\n\n
\u5982\u679c\u4f60\u662f\u4f7f\u7528Android Emulator\u6216\u8005\u662fAndroid Cuttlefish\u865a\u62df\u8bbe\u5907\uff0c\u5177\u4f53\u7684\u4f7f\u7528\u65b9\u6cd5\u4e0a\u5219\u6709\u4e00\u4e9b\u5dee\u5f02\u3002\u5728Android Cuttlefish\u865a\u62df\u8bbe\u5907\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u547d\u4ee4\u6765\u542f\u52a8\u5185\u6838\uff1a<\/p>\n\n\n\n
HOME=$PWD .\/bin\/launch_cvd -daemon  -kernel_path \/path\/to\/bzImage -initramfs_path \/path\/to\/initramfs.img <\/code><\/pre>\n\n\n\n
3\uff09\u5176\u4ed6<\/p>\n\n\n\n
\u5982\u4f55\u68c0\u67e5\u5185\u6838\u7248\u672c\u4fe1\u606f<\/strong>\uff1a\u901a\u8fc7cat \/proc\/verison\u6765\u83b7\u53d6\u5f53\u524d\u7684\u7248\u672c\u4fe1\u606f\uff0c\u7ed3\u679c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
Linux version 5.10.66-android12-9-00021-g2c152aa32942-ab8087165 (build-user@build-host) (Android (7284624, based on r416183b) clang version 12.0.5 (https:\/\/android.googlesource.com\/toolchain\/llvm-project c935d99d7cf2016289302412d708641d52d2f7ee), LLD 12.0.5 (\/buildbot\/src\/android\/llvm-toolchain\/out\/llvm-project\/lld c935d99d7cf2016289302412d708641d52d2f7ee)) #1 SMP PREEMPT Fri Jan 14 17:35:16 UTC 2022<\/code><\/pre>\n\n\n\n
\u8fd9\u8868\u660e\u6240\u4f7f\u7528\u7684\u5185\u6838\u7248\u672c\u4e3a5.10\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528uname -a\u547d\u4ee4\u6765\u83b7\u53d6\u7248\u672c\u5185\u6838\u4fe1\u606f\uff1a<\/p>\n\n\n\n
5.10.66-android12-9-00021-g2c152aa32942-ab8087165<\/code><\/pre>\n\n\n\n
\u5982\u4f55\u786e\u5b9a\u5185\u6838\u9a71\u52a8\u6a21\u5757\u662f\u5426\u52a0\u8f7d<\/strong>\uff1a\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7lsmod\u547d\u4ee4\u6765\u89c2\u5bdf\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n
trout_x86:\/ $ lsmod | grep virtio\nvirtio_gpu             81920  11 \nvmw_vsock_virtio_transport    24576  6 \nvmw_vsock_virtio_transport_common    40960  1 vmw_vsock_virtio_transport\nvsock                  45056  12 vmw_vsock_virtio_transport,vmw_vsock_virtio_transport_common,vsock_diag\nvirtio_net             57344  0 \nnet_failover           24576  1 virtio_net\nvirtio_pmem            16384  1 \nnd_virtio              16384  1 virtio_pmem\nvirtio_blk             28672  4 \nvirtio_console         36864  0 \nvirtio_rng             16384  0 \nvirtio_input           20480  0 \nvirtio_pci             28672  0 \nvirtio_mmio            24576  0 \ntrout_x86:\/ $ <\/code><\/pre>\n\n\n\n
\u5982\u4f55\u624b\u52a8\u52a0\u8f7d\/\u5378\u8f7d\u9a71\u52a8\u6a21\u5757\uff1a<\/strong>\u5982\u679c\u6211\u4eec\u9700\u8981\u624b\u52a8\u52a0\u8f7d\/\u5378\u8f7d\u6a21\u5757\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528insmod\/rmmod\u547d\u4ee4\u3002\u5b9e\u9645\u4e0a\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5f88\u591a\u91cd\u8981\u7684\u6a21\u5757\u90fd\u76f4\u63a5\u7f16\u8bd1\u5230\u4e86\u5185\u6838\uff0c\u4f46\u4e5f\u6709\u5176\u4ed6\u6a21\u5757\u4ee5*.ko\u7684\u5f62\u5f0f\u6253\u5305\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u901a\u8fc7insmod\u547d\u4ee4\u52a0\u8f7d\uff0c\u8fd9\u4e9b\u6a21\u5757\u5728Linux\u7cfb\u7edf\u4e2d\u4f4d\u4e8e\/lib\/modules\u76ee\u5f55\u4e0b\uff0c\u6211\u4eec\u901a\u8fc7insmod\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n
root@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# ls -la\ntotal 112\ndrwxr-xr-x   2 root root  4096 6\u6708  15  2022 .\ndrwxr-xr-x 111 root root  4096 6\u6708  15  2022 ..\n-rw-r--r--   1 root root  7673 6\u6708   4  2022 virtio_dma_buf.ko\n-rw-r--r--   1 root root 19865 6\u6708   4  2022 virtio_input.ko\n-rw-r--r--   1 root root 56169 6\u6708   4  2022 virtio_mem.ko\n-rw-r--r--   1 root root 16945 6\u6708   4  2022 virtio_vdpa.ko\nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# insmod virtio_input.ko \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# lsmod | grep virtio\nvirtio_input           16384  0\nvmw_vsock_virtio_transport_common    40960  1 vhost_vsock\nvsock                  45056  16 vmw_vsock_virtio_transport_common,vhost_vsock\nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# rmmod virtio_input.ko \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# \nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# lsmod | grep virtio\nvmw_vsock_virtio_transport_common    40960  1 vhost_vsock\nvsock                  45056  16 vmw_vsock_virtio_transport_common,vhost_vsock\nroot@bstcd-OptiPlex-7090:\/lib\/modules\/5.14.0-1042-oem\/kernel\/drivers\/virtio# <\/code><\/pre>\n\n\n\n
\u90a3\u4e48\u5982\u679c\u6211\u4eec\u9700\u8981\u5728Android\u7cfb\u7edf\u4e2d\u52a0\u8f7d\u67d0\u4e2a\u6a21\u5757\uff0c\u53ef\u4ee5\u4f7f\u7528adb shell insmod Modulename.ko\u52a0\u8f7d\u7279\u5b9a\u7684module.<\/p>\n\n\n\n
\u9664\u4e86insmod\/rmmod\u547d\u4ee4\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528modprobe\u547d\u4ee4\uff0c\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u53ef\u81ea\u884c\u641c\u7d22\uff0c\u6b64\u5904\u7565\u8fc7\u3002<\/p>\n\n\n\n
\u5982\u4f55\u786e\u5b9aAndroid\u4f7f\u7528\u7684\u5185\u6838\u7248\u672c<\/strong>\uff1a\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u5728Android\u7f16\u8bd1\u65f6\uff0c\u662f\u5982\u4f55\u786e\u5b9a\u7f16\u8bd1\u7684\u5185\u6838\u7248\u672c\u4e0e\u9884\u7f16\u8bd1\u4ea7\u7269\u7684\u8def\u5f84\u5462\uff0c\u8fd9\u90e8\u5206\u7684\u89c4\u5219\u5176\u5b9e\u90fd\u4f4d\u4e8e\/device\/\u76ee\u5f55\u4e0b\u7684makefile\u5185\uff0c\u6211\u4eec\u53ef\u4ee5\u5728makefile\u6587\u4ef6\u5185\u5168\u5c40\u641c\u7d22TARGET_KERNEL_USE\u4e0eTARGET_KERNEL_PATH\u8fd9\u4e24\u4e2a\u53d8\u91cf\uff0c\u5c31\u80fd\u591f\u627e\u5230\u5bf9\u5e94\u7684kernel\u7248\u672c\u4ee5\u53ca\u5176\u8d44\u6e90\u8def\u5f84\u3002<\/p>\n\n\n\n
\u4ee5\u4e0a\u5c31\u662f\u672c\u7bc7\u535a\u5ba2\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u5e0c\u671b\u80fd\u5bf9\u5404\u4f4d\u6709\u6240\u5e2e\u52a9~<\/p>\n        
\n            
\n                \n                
\n                    \n                        \"Happy\"\n                    <\/a>\n                    
\n                        Happy                    <\/div>\n                    
\n                                                    2<\/span>\n                        \n                                                50<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sad\"\n                    <\/a>\n                    
\n                        Sad                    <\/div>\n                    
\n                                                    1<\/span>\n                                                                        25<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Excited\"\n                    <\/a>\n                    
\n                        Excited                    <\/div>\n                    
\n                                                    1<\/span>\n                                                                        25<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sleepy\"\n                    <\/a>\n                    
\n                        Sleepy                    <\/div>\n                    
\n                                                    0<\/span>\n                        \n                                                0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Angry\"\n                    <\/a>\n                    
Angry<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                        \n                    <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Surprise\"\n                    <\/a>\n                    
Surprise<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n            <\/div>\n        <\/div>","protected":false},"excerpt":{"rendered":"
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