After googling this topic and finding nothing, I figured XDA was the place to go. I am looking for a way to get a C++ compiler working on my phone (mytouch slide) or android in general.
Thanks in advance
Que? Like a C++ compiler to compile for android? Why would u want this C++ don't run native on Android it must be called from java so it would be pointless.
There is an sdl port around that required zero knowledge of.java but I believe it still has to compile the java each time. If not it could be possible...
Sent from my Nexus One
I don't want to run the programs on my phone, just compile
Compile for what?
What is the Android NDK?
The Android NDK is a toolset that lets you embed components that make use of native code in your Android applications.
Android applications run in the Dalvik virtual machine. The NDK allows you to implement parts of your applications using native-code languages such as C and C++. This can provide benefits to certain classes of applications, in the form of reuse of existing code and in some cases increased speed.
The NDK provides:
* A set of tools and build files used to generate native code libraries from C and C++ sources
* A way to embed the corresponding native libraries into an application package file (.apk) that can be deployed on Android devices
* A set of native system headers and libraries that will be supported in all future versions of the Android platform, starting from Android 1.5
* Documentation, samples, and tutorials
The latest release of the NDK supports these ARM instruction sets:
* ARMv5TE (including Thumb-1 instructions)
* ARMv7-A (including Thumb-2 and VFPv3-D16 instructions, with optional support for NEON/VFPv3-D32 instructions)
Future releases of the NDK will also support:
* x86 instructions (see CPU-ARCH-ABIS.TXT for more information)
ARMv5TE machine code will run on all ARM-based Android devices. ARMv7-A will run only on devices such as the Verizon Droid or Google Nexus One that have a compatible CPU. The main difference between the two instruction sets is that ARMv7-A supports hardware FPU, Thumb-2, and NEON instructions. You can target either or both of the instruction sets — ARMv5TE is the default, but switching to ARMv7-A is as easy as adding a single line to the application's Application.mk file, without needing to change anything else in the file. You can also build for both architectures at the same time and have everything stored in the final .apk. For complete information is provided in the CPU-ARCH-ABIS.TXT in the NDK package.
The NDK provides stable headers for libc (the C library), libm (the Math library), OpenGL ES (3D graphics library), the JNI interface, and other libraries, as listed in the section below.
The NDK will not benefit most applications. As a developer, you will need to balance its benefits against its drawbacks; notably, using native code does not result in an automatic performance increase, but does always increase application complexity. Typical good candidates for the NDK are self-contained, CPU-intensive operations that don't allocate much memory, such as signal processing, physics simulation, and so on. Simply re-coding a method to run in C usually does not result in a large performance increase. The NDK can, however, can be an effective way to reuse a large corpus of existing C/C++ code.
Please note that the NDK does not enable you to develop native-only applications. Android's primary runtime remains the Dalvik virtual machine.
The ndk allows u to use c++ c/c++ code in Android. That code must be called from java tho.
Sent from my Nexus One
I don't think you guys are understanding his question... He's not looking to write apps for Android... he's writing stuff in C++ (presumably for desktop or maybe other embedded applications, I dunno) and just wants to be able to compile that code on his Android device...
Now as far as an answer to that question, they did kinda cover it... Since pretty much everything in Android runs in Java, I believe it would be pretty difficult to write a C++ compiler that could run on Android.
To install an compiler in your Android device, google around for how to install Debian in it. Don't be afraid, you install it in parallel of Android, you will need a command or terminal window as well (available in the marketplace).
Debian comes with everything you need to compile in your device.
I hope I was useful.
Cheers
Thank you abrigham for clearing that up for me. You are exactly correct.
Ernestus, that seems like it would cause more problems then it would be worth
hmm.. i was googling for this as well.. thought it'll be useful to have this around.
JDV28 said:
Thank you abrigham for clearing that up for me. You are exactly correct.
Ernestus, that seems like it would cause more problems then it would be worth
Click to expand...
Click to collapse
Next best option then is to cross-compile to Android/ARM from another platform. The arm-eabi toolchain provided by Google's NDK is one option as others have already mentioned.
Codesourcery ARM toolchain is another, for Linux i686 theres link to the downloadable archive see this post (search for 'wget THISLINK' text on that page).
- jc
If your looking to corss compile for android, check this link out.
http://teslacoilsw.com/dropbear
Installing debian isn't too bad, and would give you the most flexibility for compiling on the phone.
You could also ssh into another computer using connectbot or some other terminal and code/compile remotely.
Another way to do remote compiles is continuous integration. Edit/upload the file to your repository, and using a server such as Jenkins, run the compile and view the results through the browser or an app such as Hudson2Go. Jenkins will also auto-compile on edits and can send you a text if the build fails. Jenkins is very easy to setup.
Try finding an online c++ compiler or you could connect to a windows or linux machine/server to upload andcompile your c++ files.
JDV28 said:
After googling this topic and finding nothing, I figured XDA was the place to go. I am looking for a way to get a C++ compiler working on my phone (mytouch slide) or android in general.
Thanks in advance
Click to expand...
Click to collapse
Use "c4droid" this is a paid app.. anywy if you like search on the market.
Another alternitiv is out there now. Not sure how good it works.
C / C++ Compiler
im looking for compiler too i found i market a4droid compiler but it costs... and i couldnt find enywhere free apk
Easiest thing to do would be a chroot Linux environment from an existing distribution, like Ubuntu. Then compilers for nearly any language you can think of are an "apt-get install" away.
If you're running CyanogenMod 7, you have a large SD card, and you don't mind repartitioning the SD card and shaving off 2 GB or 4 GB for Linux, then I'll be posting a howto in the next day or two. I have Ubuntu 11.10 Oneiric Ocelot running out of /sd-ext cleanly, using only files from official sources (<32 MB file from cdimage.ubuntu.com and everything else via apt/dpkg with signature verification) rather than from rapidshare-like sites.
Or about a year ago there were instructions posted for unzipping a ~2 GB image containing an older version of Ubuntu downloaded from a filesharing site. You could do that if you have an immediate need.
you can download from my blog
http://dateno1.egloos.com/855501
it from https://market.android.com/details?id=com.n0n3m4.gcc4droid&feature=more_from_developer
it has some library problem but work well (i already compile few binary for my phone )
I think c4droid maches perfectly what you were looking for. I'm using it to work on my projects "on the road" and so far it works pretty well.
A little tricky to set up, since you need "gcc plugin for c4droid" but to choose g++ compiler, and builds are saved at "data/data/com.n0n2m3.c4droid/files/temp" or something like that...
There's another option, but you still have to pay: DroidEdit Pro. Perhaps better editor (didn't test it though) but without it's own compiler, you have to set up an external compiler from sftp server.
I'm currently in the process of creating a custom version of AOSP that will edit the functionality of the Host-Card Emulation feature of Android, allowing me to manually set the AID produced when my device goes into emulation mode.
I've downloaded the Android source, and have located the files I think governs HCE functionality.
From the NFC System Service, I've located the following files:
"CardEmulationManager.java" and "HostEmulationManager.java" located in "/aosp/packages/apps/Nfc/src/com/android/nfc/cardemulation/"
And from the Android core framework, for the NFC API I have found:
"CardEmulation.java" located at "/frameworks/base/core/java/android/nfc/cardemulation/CardEmulation.java"
From here, i'm unsure how to get started in editing the code. I'm unsure of the interactions between the files, and how they are called at run (I.e. which functions in the file I should be looking at, how would I go about adding my own code/modifying existing code in the file)
Is there any documentation online about how these files work/are ran? Or how would I go about finding out on my own (Through debugger tools etc.)
I'm currently using Eclipse for Ubuntu, and will be developing for a Nexus 7
Hi,
I have built a custom SDK (modifying SDK 23) and set its build version (API) to 50 (So as not to clash with the existing ones). I want to use custom libraries of this SDK in my Android Studio Application. For this purpose I want to compile the application against the SDK version 50(compileSdkVersion=50).
But when I change compileSdkVersion to 50, it gives dependency errors. The support libraries, needed by application, are not generated along with Sdk generation.
Need help regarding using this custom SDK in android application.
I'm looking for a Android studio emulator engineering GSI build so I can develop (debug) system apps that use android:sharedUserId="android.uid.system" on the manifest. Where can I download them and how do I create a AVD to be used in android studio ? I'm looking for Android 8 or 9.
xjpmauricio said:
I'm looking for a Android studio emulator engineering GSI build.........
Click to expand...
Click to collapse
All I did was Google "Android studio emulator engineering GSI" as reflected on the following link...
https://www.google.com/search?q=Android+studio+emulator+engineering+GSI
... and the very first result was to the following link...
https://source.android.com/setup/build/gsi
... and if you go to that link, and scroll down a bit, you'll see the category "Downloading GSIs" that provides you with what your looking for.
If it's not on that page, then it's not available (yet) but, It looks like it is available.
Good Luck!
~~~~~~~~~~~~~~~
UNLESS asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Enigma Machine {aenigma = Latin for "Riddle" AND Nickname for "My Ex-Wife"}.
I had already looked at that page but the information is confusing. There's a page containing various userdebug builds for download for android pie:
https://ci.android.com/builds/branches/aosp-pie-gsi/grid?
There are three types of builds: eng, userdebug, and user; I'm looking for the eng type, which uses the platform test keys.
The other problem, is that if you follow one of the links you'll land on a artifacts page containing many files that can only be downloaded one by one: https://ci.android.com/builds/submitted/5467499/aosp_arm64-userdebug/latest/
I haven't found an engineering build, only userdebug and I have no ideia on how to download all the files in the artifacts page, but the main problem is that I found no instructions on how to setup an AVD that can be used on Android Studio and Windows 10.
xjpmauricio said:
I had already looked at that page but the information is confusing.........
Click to expand...
Click to collapse
Hmm... I've never, personally, looked into this using this type/specific avenue before myself.
I'm just thinking that, maybe/possibly, either @Qui Peccavit, @Droidriven or even @osm0sis may be able to provide a better answer/guidance to help you out with this.
I do wish you the best of luck with this!
~~~~~~~~~~~~~~~
UNLESS asked to do so, PLEASE don't PM me regarding support. Sent using The ClaRetoX Forum App on my Enigma Machine {aenigma = Latin for "Riddle" AND Nickname for "My Ex-Wife"}.
Out of my wheelhouse, unfortunately. @phhusson is the GSI master.
I think that userdebug builds built by ci.android.com are signed with AOSP test keys, so that's good enough for you?
I don't really know how to plug in Android Studio with it though, but I heard it's quite easy
@phhusson, I just confirmed that a userdebug build uses the platform test keys; I unpacked a system.img from a userdebug build, checked the SystemUI.apk certificate, using keytool -printcert and the SHA1 is: 27:19:6E:38:6B:87:5E:76:AD:F7:00:E7:EA:84:E4:C6:EE:E3:3D:FA (the sha1 from the google platform test keys)
So...all I need to know is, using these files: https://ci.android.com/builds/submitted/5467499/aosp_arm64-userdebug/latest/
How do I create a AVD that I can use on Android Studio in Windows ? Any ideias?
@phhusson, you were right: its easy to get a userdebug build signed with AOSP test keys, they are available for download on Android Studio in the AVD manager section:
Go to Tools > AVD Manager > + Create Virtual Device > Select Phone, Nexus 5X > Next > Select X86 Images > Select Pie, Api Level 28, ABI x86_64, Target Android 9.0. > Next, etc, download and install.
All builds signed with AOSP test keys are identified by having a target name of Android 9.0, Android 8.1, etc. If you select an image, look at the panel on the right; it should say Android Open Source Project, etc.
All of the other builds of target user are identified with Target "Android 9.0 (Google APi's)" or "Android 9.0 (Google Play)", etc, and those are signed with dev keys, not test keys.
Thanks.
Hey Guys,
I'm working on a global audio tuning system for Android similar to Viper4Android and JamesDSP, but allowing the User to program and create their own audio filters on the fly. In order to do so I need to link against libLLVM.so which is one of the Android Platform Libraries which doesn't seem to be exposed via the NDK (https://android.googlesource.com/platform/external/llvm/).
My assumption is that I will need to build that library from AOSP Source independent of my project and then link against my locally built copy. Once compilation of my project is complete I don't need to distribute my locally built libLLVM.so file since I can leverage the one existing on the actual device.
I just wanted to see if anyone has any experience doing this, or if I'm going off the deep end.
Thanks!