debug info getting removed with --gc-sections flag

debug info getting removed with --gc-sections flag

[Ian Thompson]

Hi,

I'm using the mips gcc cross-compiler in little-endian mode, and 
running into a problem with the --gc-sections linker flag.  I can 
compile and run code just fine using the flag, but when I try and load 
the program into a debugger, it can't read the debugging information 
correctly.  I'm using the stab debug format (-gstabs for gcc, --gstabs 
for asm).  I'm guessing that the linker flag is somehow removing a 
necessary debug section, but when I do a readelf on the executable,
the mdebug section is present with or without the --gc-sections flag.

Has anyone run into this problem before?

thanks,
ian


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Ian Thompson           tel: 408.952.2023
Firmware Engineer      fax: 408.570.0910
Palmchip Corporation   www.palmchip.com

Re: debug info getting removed with --gc-sections flag

[Alexandre Oliva]

On Mar 20, 2001, Ian Thompson <iant@palmchip.com> wrote:

> Has anyone run into this problem before?

Yep.  AFAIK, --gc-sections isn't really usable yet.  You may want to
let the folks in the appropriate mailing list know about this
particular the problem, though.  Hint: gcc-help is about GCC, the
linker is part of GNU binutils.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
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CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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