* EXTERN command
@ 2011-02-26 10:44 ali hagigat
2011-02-26 11:05 ` Alan Modra
0 siblings, 1 reply; 4+ messages in thread
From: ali hagigat @ 2011-02-26 10:44 UTC (permalink / raw)
To: binutils
"Force symbol to be entered in the output file as an undefined symbol.
Doing this
may, for example, trigger linking of additional modules from standard
libraries."
What does it mean by "additional modules"? Are they some files?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: EXTERN command
2011-02-26 10:44 EXTERN command ali hagigat
@ 2011-02-26 11:05 ` Alan Modra
2011-02-28 7:46 ` ali hagigat
0 siblings, 1 reply; 4+ messages in thread
From: Alan Modra @ 2011-02-26 11:05 UTC (permalink / raw)
To: ali hagigat; +Cc: binutils
On Sat, Feb 26, 2011 at 02:14:46PM +0330, ali hagigat wrote:
> What does it mean by "additional modules"? Are they some files?
Yes. Object files in an archive (.a file).
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: EXTERN command
2011-02-26 11:05 ` Alan Modra
@ 2011-02-28 7:46 ` ali hagigat
2011-02-28 21:12 ` Ian Lance Taylor
0 siblings, 1 reply; 4+ messages in thread
From: ali hagigat @ 2011-02-28 7:46 UTC (permalink / raw)
To: binutils; +Cc: Ian Lance Taylor, amodra
When i write:
gcc -lc ....
I expect libc.a is linked with my program. Does GNU ld selects some
object files from libc.a and link them with my program? or the whole
archive will be linked?
On Sat, Feb 26, 2011 at 2:35 PM, Alan Modra <amodra@gmail.com> wrote:
> On Sat, Feb 26, 2011 at 02:14:46PM +0330, ali hagigat wrote:
>> What does it mean by "additional modules"? Are they some files?
>
> Yes. Object files in an archive (.a file).
>
> --
> Alan Modra
> Australia Development Lab, IBM
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: EXTERN command
2011-02-28 7:46 ` ali hagigat
@ 2011-02-28 21:12 ` Ian Lance Taylor
0 siblings, 0 replies; 4+ messages in thread
From: Ian Lance Taylor @ 2011-02-28 21:12 UTC (permalink / raw)
To: ali hagigat; +Cc: binutils, amodra
ali hagigat <hagigatali@gmail.com> writes:
> When i write:
> gcc -lc ....
> I expect libc.a is linked with my program. Does GNU ld selects some
> object files from libc.a and link them with my program? or the whole
> archive will be linked?
Try it and see what happens.
Note that -lc can link against libc.so as well as libc.a.
Ian
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-02-28 21:12 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-02-26 10:44 EXTERN command ali hagigat
2011-02-26 11:05 ` Alan Modra
2011-02-28 7:46 ` ali hagigat
2011-02-28 21:12 ` Ian Lance Taylor
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