Ubuntu 16.04 编译Android 6.0系统源码

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准备环境

1.安装open-jdk7
【使用open-jdk8会报错】,原因是:
在build/core/main.mk中默认指定的是jdk1.7

  1. # Check for the correct version of java,should be 1.7 by
  2. # default,and 1.8 if EXPERIMENTAL_USE_JAVA8 is set
  3. ifneq ($(EXPERIMENTAL_USE_JAVA8),)
  4. required_version := "1.8.x"
  5. required_javac_version := "1.8"
  6. java_version := $(shell echo '$(java_version_str)' | grep 'openjdk .*[ "]1\.8[\. "$$]')
  7. javac_version := $(shell echo '$(javac_version_str)' | grep '[ "]1\.8[\. "$$]')
  8. else # default
  9. required_version := "1.7.x"
  10. required_javac_version := "1.7"
  11. java_version := $(shell echo '$(java_version_str)' | grep '^java .*[ "]1\.7[\. "$$]')
  12. javac_version := $(shell echo '$(javac_version_str)' | grep '[ "]1\.7[\. "$$]')
  13. endif # if EXPERIMENTAL_USE_JAVA8

我开始就是安装了open-jdk8,然后编译不过,看到这里默认是1.7,如果是试验环境,所以又重新安装的1.7。
这个安装完以后,就准备开始编译Android源码。

2.编译前配置
在.bashrc文件添加:export USE_CCACHE = 1,操作如下:

  1. echo export USE_CCACE=1 >> ~/.bashrc

为了提高编译效率,设置编译器高速缓存。执行以下命令:

  1. prebuilts/misc/linux-x86/ccache/ccache -M 30G

-M 30G 两个参数表示设置30G大小的空间作为缓存,这个数值可以根据自己的硬盘空间大小继续调整.

编译

接着导入编译Android源码所需的环境变量和其它参数,运行以下命令

  1. source build/envsetup.sh

结果如下:

  1. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1$ source build/envsetup.sh
  2. including device/asus/deb/vendorsetup.sh
  3. including device/asus/flo/vendorsetup.sh
  4. including device/asus/fugu/vendorsetup.sh
  5. including device/generic/mini-emulator-arm64/vendorsetup.sh
  6. including device/generic/mini-emulator-armv7-a-neon/vendorsetup.sh
  7. including device/generic/mini-emulator-mips/vendorsetup.sh
  8. including device/generic/mini-emulator-x86_64/vendorsetup.sh
  9. including device/generic/mini-emulator-x86/vendorsetup.sh
  10. including device/htc/flounder/vendorsetup.sh
  11. including device/lge/hammerhead/vendorsetup.sh
  12. including device/moto/shamu/vendorsetup.sh
  13. including sdk/bash_completion/adb.bash
  14. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1$

接着输入lunch

  1. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1$ lunch
  2. You're building on Linux Lunch menu... pick a combo: 1. aosp_arm-eng 2. aosp_arm64-eng 3. aosp_mips-eng 4. aosp_mips64-eng 5. aosp_x86-eng 6. aosp_x86_64-eng 7. aosp_deb-userdebug 8. aosp_flo-userdebug 9. full_fugu-userdebug 10. aosp_fugu-userdebug 11. mini_emulator_arm64-userdebug 12. m_e_arm-userdebug 13. mini_emulator_mips-userdebug 14. mini_emulator_x86_64-userdebug 15. mini_emulator_x86-userdebug 16. aosp_flounder-userdebug 17. aosp_hammerhead-userdebug 18. aosp_hammerhead_fp-userdebug 19. aosp_shamu-userdebug Which would you like? [aosp_arm-eng]

这里选择1,会出现以下提示信息,告诉我们编译的源码的一些相关信息:

  1. Which would you like? [aosp_arm-eng] 1 ============================================ PLATFORM_VERSION_CODENAME=REL PLATFORM_VERSION=6.0 TARGET_PRODUCT=aosp_arm TARGET_BUILD_VARIANT=eng TARGET_BUILD_TYPE=release TARGET_BUILD_APPS= TARGET_ARCH=arm TARGET_ARCH_VARIANT=armv7-a TARGET_cpu_VARIANT=generic TARGET_2ND_ARCH= TARGET_2ND_ARCH_VARIANT= TARGET_2ND_cpu_VARIANT= HOST_ARCH=x86_64 HOST_OS=linux HOST_OS_EXTRA=Linux-4.4.0-34-generic-x86_64-with-Ubuntu-16.04-xenial HOST_BUILD_TYPE=release BUILD_ID=MRA58K OUT_DIR=out ============================================ dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1$

开始编译

  1. make -j8

Error:

1.frameworks/base/tools/aidl/aidl_language_y.y

  1. Import includes file: out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/import_includes
  2. Yacc: aidl <= frameworks/base/tools/aidl/aidl_language_y.y
  3. prebuilts/misc/linux-x86/bison/bison -d -o out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp frameworks/base/tools/aidl/aidl_language_y.y
  4. /bin/bash: prebuilts/misc/linux-x86/bison/bison: No such file or directory
  5. build/core/binary.mk:609: recipe for target 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp' Failed
  6. make: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp] Error 127
  7. make: *** Waiting for unfinished jobs....
  8. Lex: aidl <= frameworks/base/tools/aidl/aidl_language_l.l
  9. frameworks/base/tools/aidl/aidl_language_l.l:55: warning,rule cannot be matched
  10. flex-2.5.39: fatal internal error,exec of /usr/bin/m4 Failed
  11. build/core/binary.mk:646: recipe for target 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp' Failed
  12. make: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp] Broken pipe
  13. make: *** Deleting file 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_l.cpp'
  14. Note: Some input files use unchecked or unsafe operations.
  15. Note: Recompile with -Xlint:unchecked for details.
  16. Note: Some input files use unchecked or unsafe operations.
  17. Note: Recompile with -Xlint:unchecked for details.
  18. #### make Failed to build some targets (08:18 (mm:ss)) ####

解决方法

  1. sudo apt-get install bison

接着编译还是错

  1. Yacc: aidl <= frameworks/base/tools/aidl/aidl_language_y.y
  2. Lex: aidl <= frameworks/base/tools/aidl/aidl_language_l.l
  3. prebuilts/misc/linux-x86/bison/bison -d -o out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp frameworks/base/tools/aidl/aidl_language_y.y
  4. /bin/bash: prebuilts/misc/linux-x86/bison/bison: No such file or directory
  5. build/core/binary.mk:609: recipe for target 'out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp' Failed
  6. make: *** [out/host/linux-x86/obj/EXECUTABLES/aidl_intermediates/aidl_language_y.cpp] Error 127
  7. make: *** Waiting for unfinished jobs....

2.

  1. /bin/bash: xmllint: command not found
  2. /bin/bash: xmllint: command not found
  3. build/core/Makefile:34: recipe for target 'out/target/product/generic/system/etc/apns-conf.xml' Failed
  4. make: *** [out/target/product/generic/system/etc/apns-conf.xml] Error 127
  5. make: *** Waiting for unfinished jobs....
  6. build/core/Makefile:34: recipe for target 'out/target/product/generic/system/etc/permissions/handheld_core_hardware.xml' Failed
  7. make: *** [out/target/product/generic/system/etc/permissions/handheld_core_hardware.xml] Error 127

解决办法:

  1. sudo apt-get install libxml2-utils

3.
接下来还是错:

  1. Device TableGen (gen-intrinsic): libLLVMipa <= external/llvm/include/llvm/IR/Intrinsics.td
  2. clang: error: linker command Failed with exit code 1 (use -v to see invocation)
  3. build/core/host_shared_library_internal.mk:51: recipe for target 'out/host/linux-x86/obj/lib/libart.so' Failed
  4. make: *** [out/host/linux-x86/obj/lib/libart.so] Error 1
  5. make: *** Waiting for unfinished jobs....
  6. clang: error: linker command Failed with exit code 1 (use -v to see invocation)
  7. build/core/host_shared_library_internal.mk:51: recipe for target 'out/host/linux-x86/obj/lib/libartd.so' Failed
  8. make: *** [out/host/linux-x86/obj/lib/libartd.so] Error 1

【我安装了下下面这些,究竟有没有用还需要试验:】

  1. sudo apt-get install libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-dev g++-multilib

然后在网上搜了下,这个问题的解决方法

  1. http://forum.xda-developers.com/chef-central/android/guide-how-to-setup-ubuntu-16-04-lts-t3363669/page2

注意看这个帖子的15楼,哈哈,这个时候找到解决方法了,再修改art/build/Android.common_build.mk文件

  1. ifneq ($(WITHOUT_HOST_CLANG),true)

改为:

  1. ifeq ($(WITHOUT_HOST_CLANG),false)

执行:

  1. sudo vi art/build/Android.common_build.mk
  2. /WITHOUT_HOST_CLANG #搜索该字符的位置

在第74行:

  1. # Clang build support.
  2. # Host.
  3. ART_HOST_CLANG := false
  4. ifneq ($(WITHOUT_HOST_CLANG),false)
  5. # By default,host builds use clang for better warnings.
  6. ART_HOST_CLANG := true
  7. endif

进行修改,然后继续make -j8编译。反复执行几次就可以了。

编译成功

  1. Creating filesystem with parameters:
  2. Size: 1610612736
  3. Block size: 4096
  4. Blocks per group: 32768
  5. Inodes per group: 8192
  6. Inode size: 256
  7. Journal blocks: 6144
  8. Label: system
  9. Blocks: 393216
  10. Block groups: 12
  11. Reserved block group size: 95
  12. Created filesystem with 1696/98304 inodes and 138385/393216 blocks
  13. Install system fs image: out/target/product/generic/system.img
  14. out/target/product/generic/system.img+ maxsize=1644333504 blocksize=2112 total=1610612736 reserve=16610880
  15.  
  16. #### make completed successfully (03:39:54 (hh:mm:ss)) ####
  17.  
  18. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1$

进入out目录可以看到编译生成文件

  1. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1/out/target/product/generic$ ll
  2. total 1590669
  3. drwxrwxrwx 1 dongqiang dongqiang 4096 9 24 15:02 ./
  4. drwxrwxrwx 1 dongqiang dongqiang 0 9 22 23:11 ../
  5. -rwxrwxrwx 1 dongqiang dongqiang 7 9 24 10:14 android-info.txt*
  6. drwxrwxrwx 1 dongqiang dongqiang 0 9 24 13:14 cache/
  7. -rwxrwxrwx 1 dongqiang dongqiang 69206016 9 24 13:14 cache.img*
  8. -rwxrwxrwx 1 dongqiang dongqiang 70391 9 24 11:28 clean_steps.mk*
  9. drwxrwxrwx 1 dongqiang dongqiang 0 9 24 13:46 data/
  10. drwxrwxrwx 1 dongqiang dongqiang 0 9 24 13:09 dex_bootjars/
  11. drwxrwxrwx 1 dongqiang dongqiang 0 9 24 00:31 gen/
  12. -rwxrwxrwx 1 dongqiang dongqiang 70522 9 24 15:01 installed-files.txt*
  13. drwxrwxrwx 1 dongqiang dongqiang 4096 9 24 15:01 obj/
  14. -rwxrwxrwx 1 dongqiang dongqiang 761 9 24 11:28 prevIoUs_build_config.mk*
  15. -rwxrwxrwx 1 dongqiang dongqiang 888961 9 24 13:32 ramdisk.img*
  16. drwxrwxrwx 1 dongqiang dongqiang 0 9 24 13:32 recovery/
  17. drwxrwxrwx 1 dongqiang dongqiang 4096 9 24 13:32 root/
  18. drwxrwxrwx 1 dongqiang dongqiang 4096 9 24 13:31 symbols/
  19. drwxrwxrwx 1 dongqiang dongqiang 4096 9 24 14:13 system/
  20. -rwxrwxrwx 1 dongqiang dongqiang 1610612736 9 24 15:02 system.img*
  21. -rwxrwxrwx 1 dongqiang dongqiang 576716800 9 24 13:47 userdata.img*
  22. dongqiang@dongqiang-Lenovo-Y50p-70:/media/dongqiang/learn/learn/Android/android-6.0.0_r1/out/target/product/generic$

执行emulator


可以看到打开了模拟器.

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