Errors encountered when compiling the android source code and Linux kernel source code

1. Run the "ADB reboot bootloader" or "ADB start-server" command in Ubuntu to get the following error:

 

Error: device not found

Cause 1 may be that no USB rule is added: Create the file/etc/udev/rules. d/51-android.rules: # HTC phonesubsystem = "USB", sysfs {idvendor }== "0bb4", mode = "0666" # googlesubsystem = "USB ", sysfs {idvendor }== "18d1 ", mode = "0666" other brand Mobile Phone codes can be found at http://developer.android.com/guide/developing/device.html?vendorids 2. The reason may be that the mobile phone does not set the USB Debugger Mode settings-> Applications-> Development

2. Run "ADB devices" and get the following error:

 

List of devices attached

???????????? No Permissions

The reason is that the root user is not used to start ADB.

# Sudo passwd root // if the root password is not set

# Su

# CD out/host/linux-x86/bin

#./ADB kill-Server

#./ADB start-Server

# Exit

The error will disappear.

 

3. Various no permission errors

# Su

Use the root user to execute the command

Also set Path =/home/<user>/<Android source root>/out/host/linux-x86/bin/: $ path

 

4. fastboot-P passion-W flashall get the following error

 

Error: coshould not load android-info.txt

The reason is that there is no unlock device: Execute the command: fastboot OEM unlock Select Yes with the sound key, restart and press power and click to enter the fastboot mode. 5. failed to build Linux kernel"
C0: Error: Unrecognized command line option "-MAPCs"
C0: Error: Unrecognized command line option "-MnO-sched-Prolog"
C0: Error: Unrecognized command line option "-mabi = aapcs-Linux"
C0: Error: Unrecognized command line option "-MnO-thumb-interwork"
ARCH/ARM/kernel/asm-offsets.c: 1: Error: Bad value (armv5t) for-March = Switch
ARCH/ARM/kernel/asm-offsets.c: 1: Error: Bad value (strongarm) for-mtune = switch the reason is that the cross_compiler path is not set correctly make arch = arm cross_compile = ~ /<Android source>/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/ARM-Eabi-can be added to this part. in the bashrc file, configure the global variable -- by scott6. implicit declaration of function 'kfree' to add the header file Linux/slab. h