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

[Raz]

why do you think the linker removes the function ? what flags are using ?
Please nm ( nm <elf> ).

2011/3/7 Erez D <erez0001 at gmail.com>

>
>
> 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
>>
>> how ?
> sorry, didn't get what you mean.
>
> i'll give an example:
>
> =============== my code ========
> int x;
>
> void a()
> {
>   x=3;
> }
>
> int main()
> {
>   x=0;
>   return 1;
> }
>
> ========================
>
> the linker will remove function a() as it is not called from enywhere.
> however, i need it to be there, including all of its content.
>
> how do i do that.
>
>
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