Database Users

Compiling Cryptophone

Because it seems to be a often requested topic I wanted to give back my experince with compiling the in topic mentioned source code and how really value it is for anything.
I started this because I got the code for review for a intrested customer but my experince with arm and gcc is rather low. So i started reading up on the cross compiler and came accros serveral dificults with the build enviorment.
First the code seemed to be aimed to a rather old version of gcc, newer cross compiler toolchains won't compile it.
So I obtained a 2004 linux (redhat 8) which fitted best in the time mentioned in the headers source was last edited. On this system I was able to build the cross-arm toolchain like mentioned in the readmes without any problem.
With the builded toolchain I was also able to compile celp_fxp and with the make file. i mentioned that in the makefile there is a (intentionally) added error. After the last source file there was fxlp.c added which is not a file present in the tree. After removing this the .o files builded fine.
I imported the .o files produced back to windows Embended Visual C++, opened the project and started a compile like further explainedin the readme docs. Sadly I now face this error:
acb_parm.o : fatal error LNK1190: invalid fixup found, type 0x0010
It is possible this error occures from a wrong compiled gmp libary for which no build isntructions were given. If anybody has any value information on this I would greatly appriciate this. As I said earlier I had really no experince with gcc form cross arm before i started here. I always left out linux compiler of my embended world.
I am working on this now since a few days, maybe someone else got experince in this he/she wants to share. Thansk for reading.

Cross-compiling, what am i doing wrong

Hello!
as the title indicates I am having trouble cross-compiling. hello world compiles perfectly but bigger programs just wont give in..
I downloaded the android source from git and compiled just the way the website (http://source.android.com/download) says you should (is there anyway to verify that its compiled correctly?)
Then I use the agcc python script(http://plausible.org/andy/agcc) for the linking but when i compile i always get trouble about it not being able to find certain defined fields or other types. So basicly i followed the second part of what this wiki says (eventough using a toolchain from codesourcery for example and cc staticly. It also fails...)
What im really asking is how and what do you guys use to cross-compile to android?

Richard_Xeli said:
Hello!
as the title indicates I am having trouble cross-compiling. hello world compiles perfectly but bigger programs just wont give in..
I downloaded the android source from git and compiled just the way the website (http://source.android.com/download) says you should (is there anyway to verify that its compiled correctly?)
Then I use the agcc python script(http://plausible.org/andy/agcc) for the linking but when i compile i always get trouble about it not being able to find certain defined fields or other types. So basicly i followed the second part of what this wiki says (eventough using a toolchain from codesourcery for example and cc staticly. It also fails...)
What im really asking is how and what do you guys use to cross-compile to android?
Click to expand...
Click to collapse
Hello,
i am having problems with the linker too! i am using the NDK (because it actually does C / C++ code) and the code compiles with very few warnings on some instructions but works well otherwise, it just WOULD NOT LINK the stuff together!! one interesting setting i noticed in some public makefiles for the NDK i noticed is that they actually set the linker to /system/bin/linker, which is obviously a file on the target device. but i don't know how it would access it? any ideas?
BTW: post your error(s) please

Try this
The system won't let me post a link (as a new user), however there is a really good tutorial on native android development and debugging using the AOSP build system. Search on Aton International Incorporated and click on blogs in the menubar. I am in no way associated with the company, just happy to finally be able to cross-compile, link and debug for android.
Maybe someone who has more posts could post a link here.

http://www.aton.com/android-native-development-using-the-android-open-source-project/

[Q]andriod kernel of mega is same like wildfire by proof!!!

http://htc-linux.org/wiki/index.php?title=Mega
i read that the kernel is same wont that help porting andriod with respect to some drivers change!!!

no one answered

the problem is our first developer can't keep the android project...

hi
how can i debug this files and run???

currently I'm trying to cross-compile a most recent wildfire kernel I found on htc server using a configuration I personally made for our mega. The problem is there are many errors in the source code...

re.:
In my opinion we start build android from beginning. My problem is in my OS on my PC. I have Windows XP and building and modifing found only on Linux. I find this page with porting guide. It is step by step How to create boot screen, How to setup Connectivity...
source.android.com/porting/bring_up.html
On this page are programs for debug and download android source code...
Anyone write.

Move to general as not rom development

I'm using linux, this is why I want to try to cross-compile a kernel for our device, like I just said, source code has a large number of errors, I don't know why...
if you are interested, I can share the kernel configuration I made myself...

Now I install Ubuntu 10. It was compilation found in this version of Linux??? Where programs can I download? Now I have Git, Eclipse and Python 2.7. How can I install .tar packs on Ubuntu zito882000?

if you are new as a linux user it's quite difficult to explain, you need gcc plus the same programs a normal user has to compile a kernel.
The difference is in the way of compilation, a parameter that does a compilation for arm architectures....do you have some kernel compilation experience?

re.:
zito882000 said:
if you are new as a linux user it's quite difficult to explain, you need gcc plus the same programs a normal user has to compile a kernel.
The difference is in the way of compilation, a parameter that does a compilation for arm architectures....do you have some kernel compilation experience?
Click to expand...
Click to collapse
windows is gold.
with compilation i haven't any experience. I only begin in programming languages C, C++ and VB. I compile only my apps in visual studio. And i have nice experience with photoshop.

it isn't exactly the same thing, in a kernel you have a large number of drivers to compile, not a only one program...
Here cyberciti.biz/tips/compiling-linux-kernel-26.html you can find a simple guide!
The most important part is the command "make" that need some different parameters to do a cross-compilation for ARM processors ^^

thx
I saw the instructions and understand him. If I somehow help you write to my icq: 484038954 or Skype: vasek-smekal.
So far, thanks

I just bought an HTC Hero with native android.
If you want to try again I share with you my kernel configuration file and a link where you can download the kernel source I used.
(remember to rename "config.txt" in ".config" with the point and without the extension)
KERNEL SOURCE -> http://developer.htc.com/ (must choose "HTC Wildfire - Froyo - 2.6.32 kernel source code")
ARM LINUX GCC -> http://www.handhelds.org/download/projects/toolchain/archive/arm-linux-gcc-3.3.1-030820.tar.bz2

[Q] 1.5 / 2.2 QVGA Issues

I was developing with Android 1.5 api and I published an app to the market.
However , one of my friends told me that he can't find my app on the market.
His phone is running Android 2.2 and having a QVGA Screen.
I tried with an emulator running Android 1.6 QVGA and the same problem was noticed.
I tried to google for the solution and it seems that I don't have correct keywords to specify the problem.
I know I can use supports-screens android:smallScreens="true" , but not for 1.5
Do I need to develop with 1.6 api to support all kind of screens? Or do I just need to include some more at the manifest?
Sorry for my poor English.

I can see no one answered my question, is it because I am reading with a QVGA screen?(Joking)
Please Help.

You need to build the project against the 1.6 API (you can do it in a way that is compatible with 1.5) to support various screen sizes with supports-screen.
The whole process consists of right clicking your project in eclipse, changing the API to build against, adding proper values to the manifest and exporting the app.
It's pretty well explained on the android developers page, but if you can't get it working, I'll post a step by step guide once I get to my laptop (later this day).

Number22 said:
You need to build the project against the 1.6 API (you can do it in a way that is compatible with 1.5) to support various screen sizes with supports-screen.
The whole process consists of right clicking your project in eclipse, changing the API to build against, adding proper values to the manifest and exporting the app.
It's pretty well explained on the android developers page, but if you can't get it working, I'll post a step by step guide once I get to my laptop (later this day).
Click to expand...
Click to collapse
I just found out that I can use 1.6API and support 1.5 after reading your reply.
Thank you , you helped alot!

[Q] test roms on emulator

Hi,
I would like to test the roms I can find here, on an emulator.
for that, I will need something like the SDK for the Acer tablet A500.
(to build my AVD)
I can't find it. anyone have an idea where I can find it ?
thanks
Olivier

http://lmgtfy.com/?q=android+sdk

ah ah ah . so fun )
unfortunatly, it is not provided by google !
I know well the android SDK, I am talking about a small part which is sometime provided by constructor in order to help the developper to build application with android SDK.
for example, Sony provides the SDK part for some of its device. it has to be added to the android SDK.
I think it could comes from Acer, or developer who has it because they are working near or far from this (in the same way, the Leak comes from someone which is near from developer team)
I am still looking for that.
thanks
Olivier

Im totally confused as to what you are looking for.. If its reference sdk from acer . They have not provided this.. I think its something they provide to google then google adds it to the sdk. or acer will provide a repo to add to your sdk.
now here is what setup i have..
1 download the sdk tools from developer.android.com/sdk i think is the url (use search )
2. download eclipse (there is a link on the developer.android.com site)
3 download the correct FULL Java library abe sure to read the requirements on the version of eclipse you use for what jave version you need )
4 Read read READ .. Read the how to install sdk development environment in Eclipse for your EXACT OS . Pay close attention to every detail. like is is x86 x64 and so on.
5 Follow the instructions word for word on again the install and setup for android development platform for your OS Version.
This is what i use as well as CYGWIN (this is for advanced users) As well as there are other tools that make developing much easier. YES IM NEW TO all of this as well.But have learned alot over the last year.
The above only gets you ready. Once you get to this point . KEEP . WELL YOU KNOW THIS Part already KEEP READING.. in a few weeks you will on your way.
GOOD LUCK developer.android.com has everything your asking and beyond.
If any of the above is incorrect Blame it on developer.android.com or the mighty thor. god of the universe..