Problem with EABI version for cross-compiling

[hosune7845]

Hi.

I tried to compile for arm-linux(like RPi) on Win7 host

I successfully compiled fpc by using fpclazup.

And, run set Lazarus -> project Option -> library path and target OS/CPU.

But compiling failed with error message : Error while linking(EABI version doesn't math)

How can I solve this problem?

[herux]

there may be no linker, or the compiler does not find it.
did you install it?  binutils for windows ?

[hosune7845]

there may be no linker, or the compiler does not find it.
did you install it?  binutils for windows ?

Sure.

I compiled fpc for arm with binutils.

I think, one of options was wrong when i compiled fpc.

I compiled with below option :

fpclazup.exe --installdir="c:\crossfpc" --ostarget="linux" --cputarget="arm" --crossOPT="-CpARMV6 -CfVFPV2" --only="FPCCleanOnly,FPCBuildOnly"

[Laksen]

Didn't it list the places where the eabi versions didn't match? Something like "file.o was EABI version 0/4, but system.o was EABI version 5".

I think your binutils are either built for non-eabi or too old

[hosune7845]

Didn't it list the places where the eabi versions didn't match? Something like "file.o was EABI version 0/4, but system.o was EABI version 5".

I think your binutils are either built for non-eabi or too old

my binutils from CodeTyphon server (I double-checked binutils working)..

[DonAlfredo]

If you check the fpcup bin directory, you will find some samples for cross-compiling !
I think your Pi Linux is hardfloat

So you need for RPi:

fpclazup.exe --installdir="c:\crossfpc" --ostarget="linux" --cputarget="arm" --fpcOPT="-dFPC_ARMHF" --crossOPT="-CpARMV6 -CfVFPV2 -CaEABIHF" --only="FPCCleanOnly,FPCBuildOnly"


So you need for RPi2:

fpclazup.exe --installdir="c:\crossfpc" --ostarget="linux" --cputarget="arm" --fpcOPT="-dFPC_ARMHF" --crossOPT="-CpARMV7A -CfVFPV3 -OoFASTMATH -CaEABIHF" --only="FPCCleanOnly,FPCBuildOnly"

Edit: use the newest version of fpc(laz)up; there was a problem when cross-compiling, especially  from trunk !

[Thaddy]

Don't use the binutils from CT. Use the fnueabihf toolchain from linaro.org.
http://www.linaro.org/downloads/

[hosune7845]

If you check the fpcup bin directory, you will find some samples for cross-compiling !
I think your Pi Linux is hardfloat

So you need for RPi:

fpclazup.exe --installdir="c:\crossfpc" --ostarget="linux" --cputarget="arm" --fpcOPT="-dFPC_ARMHF" --crossOPT="-CpARMV6 -CfVFPV2 -CaEABIHF" --only="FPCCleanOnly,FPCBuildOnly"


So you need for RPi2:

fpclazup.exe --installdir="c:\crossfpc" --ostarget="linux" --cputarget="arm" --fpcOPT="-dFPC_ARMHF" --crossOPT="-CpARMV7A -CfVFPV3 -OoFASTMATH -CaEABIHF" --only="FPCCleanOnly,FPCBuildOnly"

Edit: use the newest version of fpc(laz)up; there was a problem when cross-compiling, especially  from trunk !

Thank you! It works
-----------------

Thanks for all answers!

[DonAlfredo]

Nice !!

If you want to do more than just the basic things with a RPi(2), have a look at the pxl library !

http://asphyre.net/
http://sourceforge.net/projects/asphyre/

IMHO, this is a very well written library.
And also very well suited for RPi(2).

[hosune7845]

Nice !!

If you want to do more than just the basic things with a RPi(2), have a look at the pxl library !

http://asphyre.net/
http://sourceforge.net/projects/asphyre/

IMHO, this is a very well written library.
And also very well suited for RPi(2).

Thank you.

I'll check the library is suitable for my project!

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Could you let me know how to set gdbserver in Lazarus?