forcing gcc to save all caller saved registers

[Dietmar Maurer]

Hi all,

is there a way to force gcc to save/restore all caller saved registers
in the prolog/epilog.

I currently use the following code to accomplish that (on x86):

a_func ()
{
	asm("" : : : "%esi", "%edi", "%ebx");

	...
}


That way gcc save/restores all caller saved regs and generates exception
tables able to restore all those registers (when compiled with
-fextections)

Is there any other way to accomplish the same result?

- Dietmar