[RFC/hppa] Change handling of stubs in the return path

[Daniel Jacobowitz]

On Mon, Dec 06, 2004 at 02:37:12PM -0800, Randolph Chung wrote:
> The following patch changes the behavior of the unwinder for hpux so
> that export stubs are not visible when unwinding the stack. this is
> desired for several reasons as discussed on this list recently:
> 
> 1. it is less confusing to the user (and more consistent with how 
>    gdb used to work)
> 2. it improves the behavior for commands like "up" and "finish", 
>    because the user expects to return to the caller of the current
>    function, not to a stub that was synthesized by the toolchain
> 
> This fixes all the FAILs in funcargs.exp and some of the ones in
> callfuncs.exp (and possibly others, i haven't ran the whole test)
> 
> Note that the stub unwinder is still there for the cases when we single
> step into a stub.  There are some issues with the stub unwinder for HPUX
> as well, but I'll fix that separately.
> 
> comments? is this ok?

Does this work OK when single stepping out of something, i.e. back into
a stub?

> +static void
> +hppa_hpux_unwind_adjust_stub(struct frame_info *next_frame, CORE_ADDR base,
> +			     struct trad_frame_saved_reg *saved_regs)

Formatting ;-)


-- 
Daniel Jacobowitz