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Problems compiling apps for Universal under Linux

Sorry for a lame question, but i've got a problem. I've compiled a simple hello-world application using arm-gcc 3.4.3 (compiled under x86 linux using gcc compiler for ARM) with default settings. When I was trying to start it under Universal, I got the message 'Invalid instruction' (or something like that).
Please provide me with a working example (command-line arguments for building and etc) or some instructions on build process, if anybody has one.
Thanks.

bazis said:
I've compiled a simple hello-world application using arm-gcc 3.4.3 (compiled under x86 linux using gcc compiler for ARM) with default settings.
Click to expand...
Click to collapse
You don't tell where does the gcc-3.4.3 come from.
With the 3.4.1 stadalone toolchain from
ftp://ftp.handhelds.org/projects/toolchain
it is just
Code:
/usr/local/arm/3.4.1/bin/arm-linux-gcc -o hello hello.c
If you want to compile GUI apps or big packages, then you should read
http://www.openembedded.org/wiki/GettingStarted

I downloaded it from www.gnuarm.com. It worked OK when compiled ROM images for my ARM7TDMI-based boards.
Thanks for the link, I'll try it today.
And, finally, another lame question: did anybody tried to build gcc 4.1 for cross-compiling from x86 to ARM? Or it is possible to use the script from the FTP to build it?

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/

Poking around the Source Code

I am trying to find information on how to poke around my own phone's source code (if possible, Sprint HTC Hero) and also the Android Source Code which is downloadable.
I'd like to see how the apps look, and how I could change them. I also want to know how to go about editing and loading that source code up on a phone.
Is this possible with my phone? Or do I need a special phone to do so? I'd like to know how these folks are going about creating these special ROMs for phones, and how someone can edit it to their liking, and then compile it for a specific device.

source.android.com is where you should find what you need.

I did find that, and it works someone, but the address isn't right, and for some reason I can't install an older version of Java on my Ubuntu VM. Maybe because it's 10.4? Has anyone else been able to download the source code via Google's instructions? On a newer machine?

sstrickland816 said:
I did find that, and it works someone, but the address isn't right, and for some reason I can't install an older version of Java on my Ubuntu VM. Maybe because it's 10.4? Has anyone else been able to download the source code via Google's instructions? On a newer machine?
Click to expand...
Click to collapse
If you add the Jaunty repositories to your sources.list file you should be able to download sun-java5-*
If i find the exact apt lines I will post them later.
Another thought - Switch to Debian Lenny - I switched from Ubuntu after I upgraded to 10.04 and absolutely hated 10, but I am loving Lenny.
EDIT:
add
deb http://us.archive.ubuntu.com/ubuntu/ jaunty multiverse
deb http://us.archive.ubuntu.com/ubuntu/ jaunty-updates multiverse
to your /etc/apt/sources.list
then do
apt-get update
apt-get install sun-java5-jre sun-java5-jdk

Thanks for the update, I'll try that and see how far I get.
From what I gathered, Ubuntu was the only supported Linux operating system that I'd be able to get the source code of Android for...
I understand that the size of Android is so massive, an organized way to download it is necessary, but why isn't this just simple like FTP access?

[Q]Which linux OS the the best to create custom roms for our phone ?

Hey everyone, everything is in the title. I recently installed Ubuntu 14.04 via VirtualBox, and now i would like to start create some roms, after a long time spent in front of the developement section. Today i would like to see my name in this section, so i need advices about which linux should i get ( if Ubuntu is not the right distribution ) and the tools you use in Linux to make wonderful roms !
Thanks everyone

I see Biel and savie using Ubuntu, so why not?

OxygeenHD said:
Hey everyone, everything is in the title. I recently installed Ubuntu 14.04 via VirtualBox, and now i would like to start create some roms, after a long time spent in front of the developement section. Today i would like to see my name in this section, so i need advices about which linux should i get ( if Ubuntu is not the right distribution ) and the tools you use in Linux to make wonderful roms !
Thanks everyone
Click to expand...
Click to collapse
Ubuntu/Linux dist is required to build a project from a source code, and it requires a pro to build and debug a project/ROM frm source! To make a simple/normal custom, you may even use Kitchen(in Cygwin for Windows) or even in Linux!
For ur question, Ubuntu is better choice!

Ubuntu is not a must,but its easy because it have the most tools preinstalled for this.
GREEETZ FROM TEAM-OPTIMA!!!

@lionelsuyog for now, i simply want to build a custom rom basedon stock or CM. not a complete project from souce ( not enough experience ) 
 @-CALIBAN666- Do you have some tuts in mind to help me to start training ?
Thanks

OxygeenHD said:
@lionelsuyog for now, i simply want to build a custom rom basedon stock or CM. not a complete project from souce ( not enough experience )
@-CALIBAN666- Do you have some tuts in mind to help me to start training ?
Thanks
Click to expand...
Click to collapse
if you are not building from source all you need is
apktool
java jdk
android kitchen
cygwin (if using windows)
notepad++
winrar
There are many guides - best you do some searching for example
http://forum.xda-developers.com/showthread.php?t=1801690

Well theming a custom ROM takes a lot of time and for completing the work on time you obviously gonna need some niggas to help you in your work.Well if you have a good internet connection then you can sync up sources and compile ROMs like Carbon,Pac or AOKP Kitkat for this device since we're getting closer to a stable CM11.There are a lot of guides on how to sync a ROM source code on the computer.Search down the threads and start syncing.