Re: ARM/Thumb long calls stubs

[Nick Clifton]

Hi,

> The following examples doesn't work with 2.12 binutils:
> 
> Thumb_func1 (void) { }
> 
> Thumb_func2 (void) { Thumb_func1 (); }
> 
> if the distance between func1 and func2 is happen to be more then 4M
> this code fails.

Try compiling the code with the -mlong-calls.  This switch tells the
compiler to expect these kind of very long function calls and to use
an alternative, (and less efficient) method of function calling.

> Or it should report an error at least.

If the linker is not reporting an error when it attempts to resolve
a BL instruction whoes target is too far away then yes, this is a bug.

Cheers
        Nick