looking for a way to tell gcc not to remove some code he thinks is unreachable.

[Orna Agmon Ben-Yehuda]

On Mon, Mar 7, 2011 at 12:18 PM, Muli Ben-Yehuda <muli at il.ibm.com> wrote:

> On Mon, Mar 07, 2011 at 12:11:36PM +0200, Erez D wrote:
>
> > I have a function which is not called in a regular way, so gcc
> > thinks it is dead code.  however it is not, and i am looking for a
> > way to tell the linker not to remove it.
>
> extern
>
>
> And set the function pointer to a global variable, so that the linker
cannot know if the value is used or not.
This trick I learned from Nadav Har'El worked through many compilers and
linkers over the past decade.


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-- 
Orna Agmon Ben-Yehuda.
http://ladypine.org
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