Msm8937+android7.1.1编译环境搭建及编译

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1. 硬件配置建议如下:

内存>=16GB

CPU>=i7 四核

2. 软件配置如下:

系统:Ubuntu16.04

JDK:open jdk 1.8

3.环境安装:

更换默认shell,使用下面命令:

sudo rm /bin/sh &&sudo ln -sn /bin/bash /bin/sh

其他环境安装,使用下面命令:

sudo apt-get installlibtool openssh-server samba git-core g++ make

diffstat texi2htmltexinfo subversion gawk chrpath libsm6 libxrender1

libfontconfig1

Sudo apt-get installgnupg flex bison gperf build-essential zip curl

zlib1g-dev libc6-devlib32ncurses5-dev lib32z1 lib32ncurses5

x11proto-core-devlibx11-dev libreadline-gplv2-dev lib32z1-dev

libgl1-mesa-devg++-multilib binutils-mingw-w64 tofrodos

python-markdownlibxml2-utils xsltproc genisoimage python-imaging bc

在安装过程发现安装部分失败，比如在sudoapt-get install subversion，提示unableto locate package subversion，需要变更下载源(Downdfrom这里)，之前是china，我变更为这个，但变更时间挺长的，用aliyun可能更好，下载速度更快。

5. 编译

5.1 user 版本编译方法

sourcebuild/envsetup.sh

lunchmsm8937_64-user

make -j16

5.2 debug 编译方法

sourcebuild/envsetup.sh

lunchmsm8937_64-userdebug

make -j16

也可以用./buils.shmsm8937_64 -v user，还可以是eng和userdebug

5.3 编译的问题

如果编译机器的内存<=8GB，会提示

[ 30% 21418/71006]Building with Jack:...k_intermediates/with-local/classes.dex

FAILED: /bin/bashout/target/common/obj/JAVA_LIBRARIES/framework_intermediates/with-local/classes.dex.rsp

Out of memory error(version 1.2-rc4 'Carnac' (298900f95d7bdecfceb327f9d201a1348397ed8a843843 byandroid-jack-team@google.com)).

GC overhead limitexceeded.

Try increasing heapsize with java option '-Xmx<size>'.

Warning: This mayhave produced partial or corrupted output.

[ 30% 21418/71006]Building with Jack:...http.legacy_intermediates/classes.jack

ninja: buildstopped: subcommand failed.

build/core/ninja.mk:148:recipe for target 'ninja_wrapper' failed

make: ***[ninja_wrapper] Error 1

jack的log文件位于$HOME/.jack-server/logs文件夹下(编译android之前/目录下没有.jack-server和.jack-settings)，比如jack-server-0-0.log

解决方案

报错分析：Jack“Out of memory error”

详细的错误日志如下

Out of memory error(version 1.2-rc4 'Carnac' (298900f95d7bdecfceb327f9d201a1348397ed8a843843 byandroid-jack-team@google.com)).

GC overhead limitexceeded.

Try increasing heapsize with java option '-Xmx<size>'.

Warning: This mayhave produced partial or corrupted output.

详细的错误日志里边列出了问题并且已经给出了解决方案- 增加Java虚拟机的-Xmx大小，即设置一个较大的堆内存上限。

可以修改Jack的配置文件prebuilts/sdk/tools/jack-admin。

这是一个管理Jack的shell脚本，直接修改其启动参数，由原来的改为：

JACK_SERVER_VM_ARGUMENTS=

"-Dfile.encoding=UTF-8-XX:+TieredCompilation –Xmx4096m"

JACK_SERVER_VM_ARGUMENTS="${JACK_SERVER_VM_ARGUMENTS:=-Dfile.encoding=UTF-8-XX:+TieredCompilation -Xmx4096M}"

JACK_SERVER_COMMAND="java-XX:MaxJavaStackTraceDepth=-1 -Djava.io.tmpdir=$TMPDIR$JACK_SERVER_VM_ARGUMENTS -Xmx4096M -cp$LAUNCHER_JAR $LAUNCHER_NAME"

红色部分是增加的。

此时Jack服务器仍然在后台执行，所以我们需要将其停止，然后重启启动(make会自动启动Jack服务器)才能使得修改后的参数生效。

jack server 运行和开启

./jack-admin kill-server

./jack-admin start-server

然后我们重新执行make -jN命令(N是你前边设置的并行任务数量)开始编译。我们这里是make-j8

参考链接：

http://blog.csdn.net/u012915455/article/details/52382630#51-jack-out-of-memory-error

http://stackoverflow.com/questions/42935822/android-jack-error-no-mapping-specified-for-register

jackserver 常见错误解决方法

http://blog.csdn.net/xz10561/article/details/53886691

Android7.0JACK编译器不支持多用户同时编译的问题的解决

http://blog.csdn.net/lizekun2010/article/details/52535591

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