new SystemServer().run();
System.loadLibrary("android_servers");
OnLoad.cpp
報警的:
register_android_server_AlarmManagerService(env);
return jniRegisterNativeMethods(env, "com/android/server/VibratorService",
method_table, NELEM(method_table))
public class VibratorService extends IVibratorService.Stub
電源:
register_android_server_PowerManagerService(env);
int register_android_server_PowerManagerService(JNIEnv* env) {
public final class PowerManagerService extends SystemService
private void startOtherServices()
./work/android-5.0.2/frameworks/base/core/java/android/os/IVibratorService.aidl
./core/tests/overlaytests/OverlayAppSecond/Android.mk
./core/tests/overlaytests/Android.mk
./core/tests/systemproperties/Android.mk
./core/tests/ConnectivityManagerTest/Android.mk
./Android.mk
./sax/tests/saxtests/Android.mk
root@android-virtual-machine:/work/android-5.0.2/frameworks/base# vi Android.mk
mmm: command not found
root@android-virtual-machine:/work/android-5.0.2# . build/envsetup.sh
make: *** No rule to make target `out/target/common/obj/APPS/framework-res_intermediates/src/R.stamp', needed by `out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes-full-debug.jar'. Stop.
make: Leaving directory `/work/android-5.0.2'
out/target/common/obj/JAVA_LIBRARIES/framework_intermediates
mmm <android source code path>/frameworks/base/core/res
Install: out/target/product/generic/system/framework/framework-res.apk
make: Leaving directory `/work/android-5.0.2'
root@android-virtual-machine:/work/android-5.0.2/frameworks/base# vi Android.mk
root@android-virtual-machine:/work/android-5.0.2/frameworks/base# mmm .
make: *** No rule to make target `out/host/linux-x86/bin/dex2oatd', needed by `out/target/product/generic/dex_bootjars/system/framework/arm/boot.art'. Stop.
make: Leaving directory `/work/android-5.0.2'
frameworks/base/services/core/java/com/android/server/LedService.java:6: error: class, interface, or enum expected
public LedService extends ILedService.Stub {
^
frameworks/base/services/core/java/com/android/server/LedService.java:7: error: class, interface, or enum expected
private static final String TAG = "LedService";
^
frameworks/base/services/core/java/com/android/server/LedService.java:10: error: class, interface, or enum expected
public int ledCtrl(int which, int status) throws android.os.RemoteException
^
frameworks/base/services/core/java/com/android/server/LedService.java:13: error: class, interface, or enum expected
}
^
frameworks/base/services/core/java/com/android/server/LedService.java:16: error: class, interface, or enum expected
public LedService() {
^
frameworks/base/services/core/java/com/android/server/LedService.java:18: error: class, interface, or enum expected
}
^
frameworks/base/services/core/java/com/android/server/LedService.java:20: error: class, interface, or enum expected
public static native int native_ledOpen();
^
frameworks/base/services/core/java/com/android/server/LedService.java:21: error: class, interface, or enum expected
public static native void native_ledClose();
^
frameworks/base/services/core/java/com/android/server/LedService.java:23: error: class, interface, or enum expected
public static native int native_ledCtrl(int which,int status);
^
frameworks/base/services/core/java/com/android/server/LedService.java:24: error: class, interface, or enum expected
}
./work/android-5.0.2/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/ILedService.java
./work/android-5.0.2/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/ILedService.P
./work/android-5.0.2/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService.class
./work/android-5.0.2/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService$Stub$Proxy.class
./work/android-5.0.2/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService$Stub.class
./work/android-5.0.2/frameworks/base/core/java/android/os/ILedService.aidl
root@android-virtual-machine:/#
root@android-virtual-machine:/#
root@android-virtual-machine:/#
root@android-virtual-machine:/# find ./ -name 'LedService*'
./work/android-5.0.2/frameworks/base/services/core/java/com/android/server/LedService.java
frameworks/base/services/core/java/com/android/server/LedService.java:4: error: package ILedService does not exist
public class LedService extends ILedService.Stub {
^
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/ILedService.java
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/ILedService.P
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService.class
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService$Stub$Proxy.class
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/ILedService$Stub.class
./frameworks/base/core/java/android/os/ILedService.aidl
root@android-virtual-machine:/work/android-5.0.2# find ./ -name 'IVibratorService*'
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/IVibratorService.java
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/IVibratorService.P
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/android/os/IVibratorService$Stub.class
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/android/os/IVibratorService$Stub$Proxy.class
./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes/android/os/IVibratorService.class
./frameworks/base/core/java/android/os/IVibratorService.aidl
root@android-virtual-machine:/work/android-5.0.2#
frameworks/base/services/core/jni/com_android_server_LedService.cpp:18:30: fatal error: hardware/led_hal.h: No such file or directory
#include <hardware/led_hal.h>
^
調試到如下圖：
(1) AIDL 1. 把 ILedService.aidl 放入 frameworks/base/core/java/android/os 2. 修改 frameworks/base/Android.mk 添加一行 core/java/android/os/IVibratorService.aidl \ + core/java/android/os/ILedService.aidl \ 3. mmm frameworks/base 4. 它會生成: ./out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/os/ILedService.java (2) Server : LedService.java SystemServer.java 把新文件上傳到服務器, 所在目錄: frameworks/base/services/java/com/android/server/SystemServer.java frameworks/base/services/core/java/com/android/server/LedService.java 不需要修改 frameworks/base/services/core/Android.mk 它的內容裏已經把該目錄下所有JAVA文件自動包含進去了： LOCAL_SRC_FILES += \ $(call all-java-files-under,java) (3) JNI : com_android_server_LedService.cpp onload.cpp 把新文件上傳到服務器, 所在目錄: frameworks/base/services/core/jni/onload.cpp frameworks/base/services/core/jni/com_android_server_LedService.cpp 修改 frameworks/base/services/core/jni/Android.mk : $(LOCAL_REL_DIR)/com_android_server_VibratorService.cpp \ + $(LOCAL_REL_DIR)/com_android_server_LedService.cpp \ 編譯： $ mmm frameworks/base/services $ make snod $ ./gen-img.shframeworks/base/services/core/jni/com_android_server_LedService.cpp: In function 'int android::register_android_server_LedService(JNIEnv*)': frameworks/base/services/core/jni/com_android_server_LedService.cpp:77:13: error: 'methods' was not declared in this scope methods, NELEM(methods)); ^ frameworks/base/services/core/jni/com_android_server_LedService.cpp:79:3: error: control reaches end of non-void function [-Werror=return-type] } make snod: ignoring dependencies Target system fs image: out/target/product/tiny4412/system.img Running: mkuserimg.sh -s out/target/product/tiny4412/system out/target/product/tiny4412/system.img ext4 system 629145600 out/target/product/tiny4412/root/file_contexts make_ext4fs -s -T -1 -S out/target/product/tiny4412/root/file_contexts -l 629145600 -a system out/target/product/tiny4412/system.img out/target/product/tiny4412/system Creating filesystem with parameters: Size: 629145600 Block size: 4096 Blocks per group: 32768 Inodes per group: 7680 Inode size: 256 Journal blocks: 2400 Label: Blocks: 153600 Block groups: 5 Reserved block group size: 39 Created filesystem with 1901/38400 inodes and 136868/153600 blocks out/target/product/tiny4412/system.img maxsize=642318336 blocksize=4224 total=552445236 reserve=6488064 #### make completed successfully (12 seconds) #### root@android-virtual-machine:/work/android-5.0.2# ./gen-img.sh Creating filesystem with parameters: Size: 629145600 Block size: 4096 Blocks per group: 32768 Inodes per group: 7680 Inode size: 256 Journal blocks: 2400 Label: Blocks: 153600 Block groups: 5 Reserved block group size: 39 Created filesystem with 1931/38400 inodes and 136979/153600 blocks Creating filesystem with parameters: Size: 2149580800 Block size: 4096 Blocks per group: 32768 Inodes per group: 7728 Inode size: 256 Journal blocks: 8200 Label: Blocks: 524800 Block groups: 17 Reserved block group size: 135 Created filesystem with 18/131376 inodes and 17347/524800 blocks Creating filesystem with parameters: Size: 4299161600 Block size: 4096 Blocks per group: 32768 Inodes per group: 7952 Inode size: 256 Journal blocks: 16400 Label: Blocks: 1049600 Block groups: 33 Reserved block group size: 263 Created filesystem with 18/262416 inodes and 35067/1049600 blocks Creating filesystem with parameters: Size: 10485760000 Block size: 4096 Blocks per group: 32768 Inodes per group: 8112 Inode size: 256 Journal blocks: 32768 Label: Blocks: 2560000 Block groups: 79 Reserved block group size: 631 Created filesystem with 18/640848 inodes and 78756/2560000 blocks Image Name: ramdisk Created: Sun Jun 21 22:25:06 2020 Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 720594 Bytes = 703.71 kB = 0.69 MB Load Address: 40800000 Entry Point: 40800000 root@android-virtual-machine:/work/android-5.0.2#燒寫zImage如下圖:
