| Author |
what is the difference between static and dynamic libs
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| puzzlecracker 2005-12-22, 2:58 am |
| Under windows, it is quite apparent: static is added to executable
entirely during linking and latter is added only open referenced and
searched using PATH. Thus, dynamic libs are not really added but lib
file has a pointer to a dynamic lib.
is the concept the same under gnu linux? what do you set and how does
it work? examples and/or references would be appreciated.
Thanks
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| Thobias Vakayil 2005-12-22, 2:58 am |
| puzzlecracker wrote:
>Under windows, it is quite apparent: static is added to executable
>entirely during linking and latter is added only open referenced and
>searched using PATH. Thus, dynamic libs are not really added but lib
>file has a pointer to a dynamic lib.
>
>is the concept the same under gnu linux? what do you set and how does
>it work? examples and/or references would be appreciated.
>
>Thanks
>
>
>
While running the application, you have to set the LD_LIBRARY_PATH variable,
which has path of all run time libraires.
Regards,
Thobias Vakayil
Alcatel Development India (ADI)
PH: 2349961/72/86 EXTN :7018
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| Roger Leigh 2005-12-22, 7:50 am |
| -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
"puzzlecracker" <ironsel2000@gmail.com> writes:
> Under windows, it is quite apparent: static is added to executable
> entirely during linking and latter is added only open referenced and
> searched using PATH. Thus, dynamic libs are not really added but lib
> file has a pointer to a dynamic lib.
>
> is the concept the same under gnu linux? what do you set and how does
> it work? examples and/or references would be appreciated.
info ld
http://people.redhat.com/drepper/dsohowto.pdf
- --
Roger Leigh
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| Thomas Maier-Komor 2005-12-22, 7:50 am |
| Thobias Vakayil wrote:
> puzzlecracker wrote:
>
generally speaking it is the same concept. But there are differences.
[vbcol=seagreen]
> While running the application, you have to set the LD_LIBRARY_PATH
> variable,
> which has path of all run time libraires.
>
If you have to set LD_LIBRARY_PATH the application is broken. The
ELF binary should contain a RUNPATH that points to directories
containing the required libs. It can be set passing the option
-R to the LINKER. You can set the runpath relative to the
executable using the $ORIGIN value. In this case the user
is not bound to place to binary in a specific directory, but
is free to choose any location he likes.
Tom
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| Ralf Fassel 2005-12-22, 7:50 am |
| * "puzzlecracker" <ironsel2000@gmail.com>
| is the concept the same under gnu linux? what do you set and how
| does it work? examples and/or references would be appreciated.
http://www.tldp.org/HOWTO/Program-L...OWTO/index.html
HTH
R'
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