Android源框架修改了重建，但在模拟器中有效 [英] Android source framework modify rebuild but become effective in emulator

问题描述

我修改/framework/base/services/core/java/com/android/server/am/ActivityManagerService.java 一些logcat输出字符串.

i modify /framework/base/services/core/java/com/android/server/am/ActivityManagerService.java some logcat output string.

并且我尝试使用不同的方式来重建它:

and i try to use different ways to rebuild it:

制作-jN 或

mmm/framework/base -jN 或

mmm/framework/base/services -jN

然后我在/out/target/product/generic_x86/system/framework/x86/services.odex

然后我通过 make snod

然后我尝试重新启动模拟器，或 adb重新安装adb同步，或终止system_server进程

then i try to restart emulator, or adb remount adb sync, or kill system_server process

但是可悲的是，无论我使用哪种方法，仿真器总是输出原始字符串.(很生气)

but sadly, no matter what kinds of methods i use, the emulator always output the original string.(so angry)

我什至提取了新的输出system.img以获取新的services.odex文件，并使用oat2dex.jar将其反编译为Java代码，我确实看到其中的字符串已更改.

i even extract the new output system.img to get the new services.odex file, and use oat2dex.jar to decompile it to java code, and i indeed see the string has changed in it.

所以为什么当我运行模拟器时，它不会生效...

so why when i run the emulator, it won't become effective...

推荐答案

模拟器使用的系统映像文件为system-qemu.img. 由于某种原因，文件不是由make snod创建的，而仅由system.img创建.我认为需要的是其他目标，因此您可以说make qsnod之类的，但似乎没有.我不知道任何人都可以这样工作.

The system image file used by the emulator is system-qemu.img. For some reason that file isn't made by make snod, which only makes system.img. I think what is needed is an additional target so you could say make qsnod or something, but there doesn't seem to be one. I don't know how anyone can work like this.

我目前对Makefile的结构还不够了解，无法弄清楚如何添加qsnod目标，但这是手动滚动的一种方法 system-qemu.img.

I don't understand the Makefile structure well enough at this point to figure out how to add a qsnod target, but here's a way to hand-roll system-qemu.img.

请注意，make -nN报告的最后一步是:

Notice that the very last step that make -nN reports is:

[100% 255/255] Create system-qemu.img

要找出在此运行的命令，可以说make showcommands -jN.我这样做了，发现在Macbook Pro上是以下内容:

To find out what command it ran there, you can say make showcommands -jN. I did this, and found it was the following, on my Macbook Pro:

[100% 255/255] /bin/bash -c "(export SGDISK=out/host/darwin-x86/bin/sgdisk; device/generic/goldfish/tools/mk_qemu_image.sh out/target/product/generic_x86_64/system.img)"

这就是从输入system.img产生system-qemu.img的命令(这是make snod产生的).

So that's the command for making system-qemu.img from input system.img (which is what make snod makes).

因此，在更改Framework/base下的.java文件后，在我的计算机上重建system.img的方法是:

So, my recipe for rebuilding system.img on my machine, after changing a .java file under framework/base, is:

mmm frameworks/base -jN
make snod -jN
SGDISK=out/host/darwin-x86/bin/sgdisk device/generic/goldfish/tools/mk_qemu_image.sh out/target/product/generic_x86_64/system.img

然后，当我重新启动仿真器时，我看到更改已生效.

Then when I restart the emulator, I see that my change has taken effect.

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