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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.
Is there any way to compile java applications in android?
i wanna write simple java applications like i do in ms-dos
"javac file.java, java file".
could somebody tell me if i can do it?
Meraklis56 said:
Is there any way to compile java applications in android?
i wanna write simple java applications like i do in ms-dos
"javac file.java, java file".
could somebody tell me if i can do it?
Click to expand...
Click to collapse
if you want to build an app of course you can but i don`t know if that`s so simple. depends on knowledge
but you can start here:
1. http://developer.android.com/sdk/index.html
2. http://www.eclipse.org/downloads/
3. you will need java too
are you sure i do this on my mobile?
if i got it,right this is how i make application in my pc,not in my xperia!
i want that, in my android
Meraklis56 said:
are you sure i do this on my mobile?
if i got it,right this is how i make application in my pc,not in my xperia!
i want that, in my android
Click to expand...
Click to collapse
ohhh you won`t specify
download terminal emulator from market and you will have access to shell through phone
well u cant , cause Android doesnt have a JVM , it has a Dalvik Virtual Machine, and its optmized for mobile aplications and for the hw of the device, but u can emulate some plataform, but if u want to compile just some java code, there some solutions in the forum like install ubuntu and compile there, but an aplications native for android is a lil' hard
edit---
you can read this, is very helpfull...
http://en.wikipedia.org/wiki/Dalvik_(software) Dalvik VM
http://developer.android.com/reference/java/lang/Compiler.html Compiler API ANDROID (u can use it =) in ur aplication)
installing/emulating ubuntu just for compiling java is a bit out of my limits!
i dont want to compile any crazy program, just some easy programs.
there is not other solution, than this?
java compilation on android device
I'm looking to do likewise for various reasons.
One is I live in a tent and the droid device consumes less power than my laptop.
Two is that I'm developing a platform that moves some 'programmer space' activities to user space. Though with java the later can normally be accomplished wo authoring any source or compiling by using introspection and object serialisation (granted an android based dx is needed here) there are use levels of the platform that afford source authoring and compilation.
Having said that as far as I can tell a javac for android is in order.
Thus: openjdk.java.net/groups/compiler/README.html
One needs to verify the source's class dependencies and see if the android vm (the dalvik vm really) implements those classes. If and where not either the compiler code needs to be modified to use dalvik implemented java classes or the dalvik vm extended to accommodate the additional classes, again if any, that the javac source uses.
The determination as to which direction to take need consider the effort involved
either way and the legalities of either way while noting that the dalvik vm is allready the subject of a lawsuit (see Controversy at en.m.wikipedia.org/wiki/Dalvik_(software) ).
Personnaly I'm leaning to modify the javac source if necessary as this
openjdk.java.net/legal/
doesn't look prohibitive in so long, I think, as the language specs are met or more simply.in so long as the modified to run on android javac produces the same results as the original.
If you're ready to get yor hands dirty (not all coding is drag and drop) here ya go
download.java.net/openjdk/jdk6/
Maybe we'll meet somewhere along the way.
Sp
I got ClassCycle and ran it on the classes that resulted from me compiling the javac sources
in the openjdk's langtools directory . These sources are a programatic interface to javac and
are said to be used at one's own risk.I had trouble compiling the 'actual' sources
but will try again.
Once I can make heads or tails of the ClassCycle report I can provide a list
of javac's class deps.
Why one might ask would is any of this class deps stuff needed?
Dx the Java bytecod+e and run it. Droid has a vm, should be ok.
The problem is that Dalvik, at least does not implment awt and swing. What this means is that there is no native implementation for those classes' bytecode to be runtime instantiated towards.
Likewise if there are javac class deps that the dalvik vm does not implement there will be no native implementation in those areas and the bytecode won't run.
Till I get the list,
Steve
Script Layer for Android
Meraklis56 said:
Is there any way to compile java applications in android?
i wanna write simple java applications like i do in ms-dos
"javac file.java, java file".
could somebody tell me if i can do it?
Click to expand...
Click to collapse
For rooted systems there is a way to run Ubuntu in the phone/tablet. I don't remember the details, just google for it. I only remember that you should use a VNC viewer to connect to the xserver running in your own system.
I don't know if you can access from that Ubuntu to the resources of your Android (sensors, GPS, camera, and so on).
If you want to be able to create small programs in an easy way for your Android and being able to access all sensors and peripherals of your phone you should consider using SL4A (Script Layer for Android).
It's a base scripting system. On top of it you can install Python, PHP, Bash. So you can write your own scripts using any text editor in the phone, and run it without using any computer in the process
java compilation on android device
A year later and:
JavaIDEDroid: http://code.google.com/p/java-ide-droid
AIDE: https://play.google.com/store/apps/details?id=com.aide.ui&hl=en
and probably others as well.
Preamble: I am a Java Android developer. I know the standard Android development flow.
I want to start developing for AOSP-CM. I follow the guide for import the whole Java source code in Eclipse, using the .classpath file provided with the source code. So I have a Java Project with all the source code, and I can browse and edit everything.
The next step is try to setup a single Android Project, for example the Phone Application, in order to use the ADT plugin feature like GUI graphical editor.
I want to edit Phone sources, build within Eclipse and above all use Eclipse Debugger.
It is possible? Where I can find a guide or tutorial ?
Sorry but I don't believe that nobody has addressed this problem.
How a CyanongenMod developer develop and build a single application? (please...don't reply with "vim" , "nano" or similar....not in the 21th century )
--- copied with permission from nathanpfry.com ---
Architekt is a custom Virtual Machine that can be used with Mac OSX, Windows, and Linux. It includes everything you need to sync with the repo of your choice (Cyanogenmod, AOKP, AOSP, etc) and start compiling Android ROMs. This version includes Java 6 for compiling Gingerbread thru Kitkat. To compile Android L, switch to OpenJDK7.
Features:
- Latest Arch system
- XFCE Desktop Environment
- All necessary packages for compiling
- No junk (games, etc)
- Geany for editing code
All you have to do is download the source!
The only requirement is that your host machine supports a 64 bit OS. 32 bit systems will not work!
Instructions:
1. Download and install VirtualBox for your host system from here.
2. Download the latest architekt zip archive and extract architekt.ova to your hard drive.
3. Start VB, click File > Import Appliance. Select "Open Appliance" and choose architekt.ova, then click Next to import the virtual machine.
4. Highlight architekt in VirtualBox Manager and open Settings. Under "System" you will want to give it more RAM and Processor Cores. The higher these values are, the faster you will compile ROMs.
5. Start the machine, pull up a terminal and initialize a git repo. Once the source is finished downloading, you're ready to go!
Download:
Click here for download mirrors
Username/Password: android/android
Feel free to buy me a Zico coconut water (donate) if you like my work. It would be greatly appreciated!
Please hit the "Thanks" button if this post helps you out!
please can you help me how to change java version jdk6 to jdk7 using command?I've tried command that used in ubuntu but Those command are not working in this virtual machine. Also there is no app to extract file and can't edit xml file
Røbin said:
please can you help me how to change java version jdk6 to jdk7 using command?I've tried command that used in ubuntu but Those command are not working in this virtual machine. Also there is no app to extract file and can't edit xml file
Click to expand...
Click to collapse
You might want to try BuilduntuVM instead.
Architekt is getting pretty dated, and I don't have any time or plans to update it. BuilduntuVM received a lot more attention and is up to date with the latest versions of OpenJDK etc. for compiling Android M.
sylentprofet said:
You might want to try BuilduntuVM instead.
Architekt is getting pretty dated, and I don't have any time or plans to update it. BuilduntuVM received a lot more attention and is up to date with the latest versions of OpenJDK etc. for compiling Android M.
Click to expand...
Click to collapse
Thank you
I want to learn how to develop and port ROMs like porting of new AOSP builds to xperia series ... can anyone refer me to some materials to get started , assuming i have just started second year of computer science engineering.
Please only helpful comments and no mockery.
suyash691 said:
I want to learn how to develop and port ROMs like porting of new AOSP builds to xperia series ... can anyone refer me to some materials to get started , assuming i have just started second year of computer science engineering.
Please only helpful comments and no mockery.
Click to expand...
Click to collapse
Skills required:
- C
- Java
- Git
- Bash
- Brain + Google
Simplified vision of android:Hardware < Kernel Linux < Hardware Abstraction Layer < Android
Porting: Working kernel + HAL
Tips & Tricks:
- Hack current projects. This way allow you to learn and not care about unnecessary stuff e.g. If I improve Ambient Sensor Light driver, is not necessary that I understand how is working android build system.
- Logcat
Classic references:
- http://source.android.com/devices/
- http://shop.oreilly.com/product/0636920021094.do
Thanks a lot .......... both for this and for your work on our devices