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Cross-compile linker error 2 years 1 month ago #15430

  • Francesco Salvi
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Hello, happy new year to all and stay healthy!

I've got a problem with the linker during a cross-compilation from Win64 to ARM32 on Linux (Raspberry PI2 and PI3 too).
Explanation: after having succesfully compiled all the units of my customer's project (which I can't disclose),
the linker gives the following error:

c:\codetyphon\fpc\fpc32\bin\i386-win32\arm-linux-ld.exe: C:\codetyphon\binLibraries\arm-linux-Raspbian2\crtbegin.o: relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC
C:\codetyphon\binLibraries\arm-linux-Raspbian2\crtbegin.o: error adding symbols: Bad value
screensimulatorraspberrypi2.ppr(27,0) Error: Error while linking

When linking for Win32 or Win64, all goes ok.
After searching info about the -fPIC option, I've found the following info "add --enable-shared at ./configure options".
This info is on page stackoverflow.com/questions/13812185/how-to-recompile-with-fpic
but unfortunately I don't know how to configure it.
Please tell me what menu to open and what setting to look for.
Sorry for wasting your time: please just point me in the right direction.

Thanks, Francesco.

 

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Cross-compile linker error 2 years 4 weeks ago #15439

  • Sternas Stefanos
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Thanks Sir
I think is a load Library problem.
Please check your external libraries your program use
PilotLogic Architect and Core Programmer

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Cross-compile linker error 2 years 4 weeks ago #15440

  • Francesco Salvi
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Thanks, unfortunately my code contains only dynamically loaded DLL and not any statically-linked DLL, so I am sure that some third party library or component causes the error. Will try to erase almost all working code, leaving just "empty" units and then remove the uses, one by one, until the error disappears. This check will require some time to complete.
Question: does any setting affect the linker optimization during this phase, kind of a "automatically skip unused libraries while linking"?
 

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Cross-compile linker error 2 years 4 weeks ago #15441

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No
in cross-build way these "tricks" are very limited.

My suggestion is to try CT and your App to a real PI4,
CT works OK, to Arm32 and Arm64 Raspberry Pi OS.
 
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The following user(s) said Thank You: Francesco Salvi

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Cross-compile linker error 2 years 4 weeks ago #15443

  • Francesco Salvi
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Thanks for the clue: will try and give feedback later this week.

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Cross-compile linker error 2 years 3 weeks ago #15447

  • Francesco Salvi
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I don't have a real PI4 at the moment: will try tomorrow on an Odroid xu4, Armbian, CPU Cortex-A7 (32 bit), but will have to install CT for this task only ...

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Cross-compile linker error 2 years 2 weeks ago #15481

  • Francesco Salvi
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 Success!
It took some days for setting up the whole environment.Success! See attached picture for details.   

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Cross-compile linker error 2 years 2 weeks ago #15482

  • Matis A.
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Thanks
CT ver 7.30 is our suggestion.

PS: please, your arm board ?
PilotLogic Core Programmer

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Last edit: by Matis A..

Cross-compile linker error 2 years 2 weeks ago #15483

  • Francesco Salvi
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Odroid xu4, Armbian, CPU Cortex-A7 (32 bit)

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Cross-compile linker error 2 years 2 weeks ago #15485

  • Matis A.
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Thanks Sir
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