Re: Is some special attribute or qualifier required tomake C function tables to use the right linker stubs?

On 02/05/14 12:43, Jan Waclawek wrote:
>> Will avr-gcc use the right relocation when picking one function from the
>> array and calling it?
> No, the relocation happened earlier, when the function pointer is getting
> allocated during linking (i.e when the *value* of the function pointer is
> getting determined). All the function pointers are 16-bit, but they will
> get a stub allocated in the "trampolines". If you use linker relaxation,
> only those functions allocated above the >64kW boundary will get a stub,
> others are used "directly".
Sorry, I meant if gcc will create the right relocation for the function 
pointer value, so that the linker puts a stub in trampolines, or if I 
have to use some special attribute to make it do so for some pointers.

You've already answer this below, so the answer is that gcc wiill always 
create a 16-bit relocation and the linker will create a stub always for 
function pointers going into data objetcs, or only for the ones above 
128Kb (64Kwords) if linker relaxation is selected.

Thanks for the help.

Regards
David F.