Android learning [Android kernel compilation process and error notes], android Kernel

Android learning [Android kernel compilation process and error notes], android Kernel

Blog: http://blog.csdn.net/muyang_ren
Ubuntu14.04 LTS (requires a 64-bit long-term support version of LTS)
Jdk1.8
Kernel: android4.0

I. jdk

1. Decompress jdk to obtain the path

2,
sudo vim /etc/environment
To:

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/lhy/jdk/jdk1.8.0_45/bin"JAVA_HOME="/home/lhy/jdk/jdk1.8.0_45"CLASSPATH=".:/home/lhy/jdk/jdk1.8.0_45/lib"

3. source/etc/environment

Ii. ubuntu Configuration
Pay attention to the jdk version and the gcc and g ++ compiler versions,
Official Website configuration: http://source.android.com/source/initializing.html
Ubuntu14.04:

Sudo apt-get install bison g ++-multilib git gperf libxml2-utils make python-networkx zlib1g-dev: i386 zip put all the following errors to be installed here sudo apt-get install g ++ sudo apt-get install gcc-multilibsudo apt-get install g ++-4.4-multilibsudo apt-get install flexsudo apt-get install libncurses5-devsudo apt-get install lib32ncurses5-devsudo apt-get install gawk (this is online to see the need to install, I will install it in advance and there will be no errors)

Error:

The following software packages have the following dependency: g ++-multilib: Dependency: gcc-multilib (>=4:4. 8.2-1ubuntu6) but it will not be installed with: g ++ (> =. 8.2-1ubuntu6) but it will not be installed E: the error cannot be corrected, because you require some software packages to maintain the status quo, that is, they destroy the dependency between software packages.

Solution:

sudo apt-get install g++sudo apt-get install gcc-multilib

Error:

Checking build tools versions... **************************************** * ****************** You are attempting to build with the incorrect versionof java. your version is: java version "1.8.0 _ 45 ". the correct version is: Java SE 1.6.Please follow the machine setup instructions at least. Mk: 131: *** stop. Stop.

Solution,

Use jdk 1.6 PATH = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin: /usr/games:/usr/local/games: /home/lhy/jdk/jdk1.6.0 _ 29/bin "JAVA_HOME ="/home/lhy/jdk/jdk1.6.0 _ 29 "CLASSPATH = ". :/home/lhy/jdk/jdk1.6.0 _ 29/lib"

Error:

G ++: selected multilib '32' not installedmake: *** [out/host/linux-x86/obj/EXECUTABLES/aapt_intermediates/aapt] Error 1

Solution:

You need to install the multilib package of gcc and g ++, and directly execute the following command to automatically install the multilib package of g ++ and gcc; sudo apt-get install g ++-4.4-multilib

An error occurs (this can be ignored ):

Note: Some input files use or overwrite outdated APIs. Note: For details, use-Xlint: deprecation to re-compile. Note: Some input files use unchecked or insecure operations. Note: For details, use-Xlint: unchecked to recompile.

Solution (do not press the tab key for a long time if the machine is not good): make update-api

Error:

/bin/bash: flex: command not foundmake: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp] Error 127

Solution:

sudo apt-get install flex

Error:

Host C: adb <= system/core/adb/transport_usb.chost C: adb <= system/core/adb/commandline. chost C: adb <= system/core/adb/adb_client.chost C: adb <= system/core/adb/sockets. chost C: adb <= system/core/adb/services. chost C: adb <= system/core/adb/file_sync_client.chost C: adb <= system/core/adb/get_my_path_linux.chost C: adb <= system/core/adb/usb_linux.chost C: adb <= system/core/adb/utils. chost C: adb <= system/core/adb/usb_vendors.chost C: adb <= system/core/adb/fdevent. chost Executable: adb (out/host/linux-x86/obj/EXECUTABLES/adb_intermediates/adb)/usr/bin/ld: cannot find-lncursescollect2: ld returned 1 exit statusmake: *** [out/host/linux-x86/obj/EXECUTABLES/adb_intermediates/adb] Error 1

Solution:

sudo apt-get install libncurses5-dev

Error found:

/Usr/bin/ld: cannot find-lncursescollect2: ld returned 1 exit statusmake: *** [out/host/linux-x86/obj/EXECUTABLES/adb_intermediates/adb] Error 1

Solution:

sudo apt-get install lib32ncurses5-dev

Error found:

Dalvik/vm/native/dalvik_system_Zygote.cpp: In function 'int setrlimitsFromArray (ArrayObject *) ': dalvik/vm/native/dalvik_system_Zygote.cpp: 194: error: aggregate 'rlimit rlim' has incomplete type and cannot be defineddalvik/vm/native/dalvik_system_Zygote.cpp: 217: error: 'setrlimit 'was not declared in this scopemake: * ** [out/host/linux-x86/obj/SHARED_LIBRARIES/libdvm_intermediates/native/dalvik_system_Zygote.o] Error 1

Solution:

$ Vim dalvik/vm/native/dalvik_system_Zygote.cpp add header file # include <sys/resource. h>

The following can be ignored:
Note: Some input files use unchecked or insecure operations.
Note: to learn more, use-Xli