Re: GCC 3.0: Bootstrap failure with current sources on powerpc-linux

[Andreas Jaeger <aj at suse dot de>]

Andrew Haley <aph@cambridge.redhat.com> writes:

> Andreas Jaeger writes:
>  > 
>  > I just got the following bootstrap failure on powerpc:
>  > 
>  > ../../gcc/unwind-dw2.c: In function `uw_frame_state_for':
>  > ../../gcc/unwind-dw2.c:897: `__SIGNAL_FRAMESIZE' undeclared (first use in this function)
>  > The same problem seems to exist in the mainline.
>  > 
>  > I could find it only in the Linux kernel header
>  > include/asm-ppc/ptrace.h with an #ifdef __KERNEL:
>  > 
>  > #ifdef __KERNEL__
>  > #define STACK_FRAME_OVERHEAD    16      /* size of minimum stack frame */
>  > 
>  > /* Size of stack frame allocated when calling signal handler. */
>  > #define __SIGNAL_FRAMESIZE      64
>  > 
>  > Andrew, where should __SIGNAL_FRAMESIZE be defined?
> 
> It was defined in ptrace.h, and it was available to user programs.

It doesn't look like it was defined in any released glibc version this
way - but that's beyond the point, we need to fix it.

> This number is simply the distance in bytes between the saved stack
> pointer and the register save area for a signal, and I do not
> understand why this information needs to be hidden from a user
> program.
> 
> However, as this define has been removed it looks like I'll need to
> solve this problem in some other way.  I'll have a look.

I think Geoff fixed it already.

Thanks,
Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj