I am trying to run a emulator from the Android source by loading the goldfish kernel with some of my configuration changes. Though I found a lot of questions on this, but could not find my answer.
1. I downloaded the android source.
2. I also successfully built my goldfish kernel. Now I can see the zImage in the /goldfish/arch/arm/boot folder.
After this I tried running this emulator by referring to a lot of similar questions.
Building Android from source - emulator and AVDs, Running emulator after building Android from source, How to compile android goldfish 3.4 kernel and run on emulator. But unfortunately didn't solve my problem. When I try to run the emulator with :
./emulator -debug init -kernel Thepath/goldfish/arch/arm/boot/zImage -avd firstAvd -wipe-data
I get an error that AVD is not found. I then found this blog, https://yaapb.wordpress.com/2012/09/22/build-a-custom-android-emulator-image/ where it says to first make the emulator from the source tree by the following commands:
$ source build/envsetup.sh
$ lunch full-eng
$ make -j4
$ emulator -wipe-data &
Then to run the emulator with my modified kernel, I need to run :
$ cd ${ANDROID_BUILD_TOP}
$ emulator -kernel ~/workspace/android/goldfish/arch/arm/boot/zImage -wipe-data &
Though I am trying to do this, the process of creating the emulator with the make command is taking hours. 7% in 90 mins till now. So in the mean time I wanted to know if anyone can tell me that to run an emulator with my kernel, do I need to first create an emulator from the source? Also, I dont find the system.img, ramdisk.img files in the android source tree. Is it normal or I ge them when I create an emulator?
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EDIT
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I would also like to know if I can run the emulator without the make -j4. The Android source tree also includes the SDK. Can I run the Emulator from the SDK. If yes, how? The google official docs say to run the following command form the /tools folder in the sdk. But there is no tools folder in the sdk folder.
After you have built the sources, you should not run build process once again in order to use the emulator. Simply go to the folder with your AOSP code and run the following commands:
$ cd ${ANDROID_BUILD_TOP}
$ source build/envsetup.sh
$ emulator -kernel ~/workspace/android/goldfish/arch/arm/boot/zImage -wipe-data &
The command source build/envsetup.sh will add additional commands to your shell, and you should be able to run emulator without building it one more time from scratch.
Related
I am using AOSP emulator for testing my code.
I downloaded the android10_release source code of AOSP in my pc.
Then used the following commands
source build/envsetup.sh
set_stuff_for_environment
lunch aosp_x86_64-eng
make -j6
emulator
now after running these commands I am successfully able to run emulator in my pc
OS of my pc is Ubuntu 18.04
I also installed many libraries for working with AOSP like jdk-8, python, curl, repo, git, and other stuff as per described in AOSP website
I am abe to see my emulator running in terminal by executing following commands
$ adb devices
List of devices attached
emulator-5554 device
I am also able to install my apk in this emulator by executing following commands
$ adb install myapp.apk
and it gets installed and I can see it in emulator
Now coming to my question
Why this emulator not showing in Android studio in devices
Even when I troubleshoot the adb connections in android studio it shows my emulator running but not showing in available devices.
Or connect to it via network adb connect localhost:5555 - port number is one higher than emulated device serial (in default case emulator-5554).
Then it is visible in Android studio and it works without issues.
solution that works for me (tried on two different machines):
$ cd aosp
$ repo init -u https://android.googlesource.com/platform/manifest -b android-10.0.0_r29
...
$ repo sync
...
$ . build/envsetup.sh
$ lunch sdk_phone_x86
$ m -j16
waiting for aosp to build
$ emulator &
$ adb devices
List of devices attached
emulator-5554 device
$ adb connect localhost:5555
connected to localhost:5555
$ adb devices
List of devices attached
emulator-5554 device
localhost:5555 device
start Android Studio (tested with 3.5.3 & 3.6.0)
In the devices list I see: "unknown Android SDK build for x86" with a little green dot next to it.
When I click on Run or Debug everything works
Finally after doing a lot of research I got to know that if I want to use Emulator of AOSP in Android Studio so I need to follow this guide
Sharing AVD system images for others to use with Android Studio
Follow these instructions to share your AVD system images with others. They can use your AVD system images with Android Studio to develop and test apps.
Make additional sdk and sdk_repo packages:
$ make -j32 sdk sdk_repo
This creates two files under aosp-master/out/host/linux-x86/sdk/sdk_phone_x86:
sdk-repo-linux-system-images-eng.[username].zip
repo-sys-img.xml
Host the file sdk-repo-linux-system-images-eng.[username].zip somewhere accessible to your users, and get its URL to use as the AVD System Image URL.
Edit repo-sys-img.xml accordingly:
Update <sdk:url> to your AVD System Image URL.
See sdk-sys-img-03.xsd to learn about other updates to the file.
Host repo-sys-img.xml somewhere accessible to your users, and get its URL to use as the Custom Update Site URL.
To use a custom AVD image, do the following in the SDK Manager:
Add the Custom Update Site URL as an SDK Update Site.
This adds your custom AVD system image to the System Images page.
Create an AVD by downloading and selecting the custom AVD system image.
This link is helpful for reference
Create avd from AOSP to use in Android Studio and also share with others
I have been trying to get the source code to compile from some time and finally got it compiled. However I am having issues with the emulator where it shows a pop up screen but is quite blank.
I am using Ubuntu Server Xenial and Android 7.1.1 for Nexus6P (but I dont own a Nexus6P so I need to run this on the emulator)
I have tried specifying all the directories such as (-sysdir,-sysdir, -datadir, -kernel, -ramdisk, -system, -data, -cache, -sdcard) although I know that these are supposed to be auto populated by the envsetup.sh file.
The command I used is this:
emulator -kernel ./prebuilts/qemu-kernel/arm64/kernel-qemu -ramdisk ./out/debug/target/product/angler/ramdisk.img -sysdir ./out/debug/target/product/angler/ -cache ./out/debug/target/product/angler/cache.img -system ./out/debug/target/product/angler/system.img -data ./out/debug/target/product/angler/userdata.img -memory 4096 -partition-size 4096 -sdcard sdcard.img -skindir ./sdk/emulator/skins/ -skin WVGA800
I changed the kernel to others such as for ARM/ARM64 but to no avail. All I see is a blank emulator and after changing it to ARM following error:
http://pastebin.com/A04NmNLn
I am at a loss as to why the emulator wont work. Also where is the "image" file with which we can install the Android on Genymotion-type external emulator.
Any help is appreciated!
In order to build AOSP to be run in emulator, there is no need to download any additional binaries. At the same time, emulator cannot run images build for real devices. Therefore, it is required to only download the sources of Android and execute the following commands within the directory with the downloaded sources:
source build/envsetup.sh
lunch aosp_arm-eng #or aosp_x86_64-eng, etc. for details see documentation
make -j4
After the sources are build in the same terminal run the emulator command and the emulator should appear.
So, the issue i correctly installed eclipse,android sdk,ndk, coocs2d-x 2.1.4. I can build cocos2d-x android project, import it to eclipse, etc. Everything seems fine, but not really. The problem is that i can't launch my virtual machine to emulate andoid OS. I created avd, it works fine with simple android projects, but when i use it to run cocos2d-x project as android application it does nothing. No output at all. I found this guide and followed it. But i faced a problem. 1st of all, when i follow this step:
Now start the Android for x86 Intel Emulator using the following command:
$ <SDK directory>/tools/emulator-x86 -avd Your_AVD_Name -qemu -m 2047 -enable-kvm
i have an error message:
gloomist-CN tools # ./emulator-x86 #myavd -qemu -m 2047 -enable-kvm
emulator: ERROR: unknown virtual device name: 'myavd'
emulator: could not find virtual device named 'myavd'
But it is in sdk as a valid android virtual device. And the next one. In that tutorial that i pasted link to above, the last step is:
Run the emulator with the correct library path and options
Make sure to
Set the library path to the directory containing the Open GL library for the emulator (LD_LIBRARY_PATH=...)
Run the x86 version of the emulator (run /tools/emulator-x86)
Enable GPU use (Use the option "-gpu on")
Also, you need to specify the name of the Android Virtual Device to use (Use the option "-avd ")
On OS X the command line looks like this
LD_LIBRARY_PATH=~/bin/android-sdk/tools/lib ~/bin/android-sdk/tools/emulator-x86 -verbose -avd android17x86 -gpu on
i don't really know what author meant by all this. Could anyone explain me the way to do it in linux?
So basically, the main problem is: how to run a cocos2d-x project on AVD in eclipse on lixnux? That's it.
I use Linux version 3.2.0-23-generic (buildd#palmer) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu4) ) #36-Ubuntu SMP Tue Apr 10 20:41:14 UTC 2012 (Ubuntu 3.2.0-23.36-generic 3.2.14).
Can anyone help me to figure out how can i accurately launch my cocos2d-x project on AVD using eclipse?
Are you sure 'myavd' is a valid avd?
Try to run this command to get a list of AVD's you have created in your system:
# <SDK directory>/tools/android list avd
And re-run emulator-x86 passing a valid avd.
I also suggest you follow the step by step guide about how to configure your android enviroment which comes with cocos2d-x dist. You can find it in: /samples/Cpp/TestCpp/proj.android/README.md
Hope this helps
I was able to fix this error on Ubuntu 18.04 by running:
sudo chmod 777 /dev/kvm
Its not exactly high security, but it gets the job done.
I tried following these steps(from here):
go to sdk folder, then go to tools.
copy your apk file inside the tool directory
./emulator -avd myEmulator
to run the emulator on mac
./adb install myApp.apk
to install app on the emulator
But when I run "./emulator -avd phoneEmulator" (phoneEmulator is the name of my emulator)
it just displays:
My-MacBook-Pro:tools myName$ ./emulator -avd phoneEmulator
2012-07-30 22:44:33.377 emulator-arm[2859:80b] Warning once: This application, or a
library it uses, is using NSQuickDrawView, which has been deprecated.
Apps should cease use of QuickDraw and move to Quartz.
It's as if that command is never returning.
If I can't input the 2nd command ./adb install myApp.apk in that window, where do I call it?
Open Terminal
go to android-sdk-mac\platform-tools
type ./adb install myApp.apk
You can work around by:
You have a *.apk file with you if you don't have, download it.
Open Android Studio and Run the emulator.
Open the finder and go to the location which contains your *.apk file.
Drag that *.apk and drop into the emulator and it will ask for confirmation after your confirmation it will install the *.apk in the emulator.
You can find it in application menu once installation succeeds.
First of all, you SHOULD NOT copy APKs to the tools or any other SDK directory.
Do not cd to the SDK directories, just add them to the PATH environment var or use their absolute path in command lines.
Then, if you want to run the emulator and then execute command from the same terminal, send the process to background (&):
$ export PATH=$PATH:/path/to/sdk/tools:path/to/sdk/platform-tools
$ emulator -avd myEmulator &
$ adb install /path/to/my.apk
You can work around by:
Upload yourapp.apk to internet. I.e: yourhost.com/yourapp.apk
Run emulator
Open internet browser on your emulator, visit link yourhost.com/yourapp.apk
Download and install
adb can be run from a seperate terminal once this emulator boots up.
May Be, Useful to all the command in MAC OS Terminal
Am I the only one whose apps install in the emulator when I run them as Android Application from eclipse?
I mean - why go though the trouble of adb when you could just use eclipse? (unless you have something against eclipse!)
Try this app. It will install the apk by just double clicking on it after you create an association to .apk files. It's all explained in the github source.
Alternatively You can use 'adb install' command as follows. "adbinstall/filename.apk"
ex. adb install /Users/manojclinberg/Downloads/ad3e0e46-d716-4fa9-b603-b8db3accf260.apk
I have downloaded android source code and made some changes to
dalvik/vm/interp/Jit.cpp. I have built the source code using
$source build/envsetup.h
$lunch full-eng
$make -j4
The build was successful. Now when I start the emulator by
$out/host/linux-x86/bin/android list targets
$out/host/linux-x86/bin/android create avd -n virtual - t target_api
$out/host/linux-x86/bin/emulator -avd virtual
the emulator starts but when I check the libdvm.so file properties in emulator using
$adb shell
#cd system/lib
#ls -l lidvm.so
the file creation date is 2011-12-14. I thought that the emulator is
starting on standard android 4.0.3 api (where libdvm.so might have
been created on that date). Now I want to make the emulator start with my
newly built code (that is I want to see the changes I made in dalvik
source code in the emulator). How could I possibly achieve this?
Thanks.