[PATCH] PowerPC: use libgcc _Unwind functions to get backtrace

[Andreas Schwab]

Adhemerval Zanella <azanella@linux.vnet.ibm.com> writes:

> @@ -35,6 +38,43 @@ struct layout
>    void *return_address;
>  };
>  
> +#define __SIGNAL_FRAMESIZE32 64

No need for namespace safety.

> +
> +/* signal trampoline saved area.  */
> +struct signal_frame_32 {
> +  char               dummy[__SIGNAL_FRAMESIZE32];
> +  struct sigcontext  sctx;
> +  mcontext_t         mctx;
> +  /* We don't care about the rest.  */
> +}; 
> +
> +static inline
> +int is_sigtramp_address (unsigned int nip, unsigned int fp)

The function name should start in column 0 with the return type on the
preceding line.

> +{
> +#ifdef SHARED
> +  if (nip == (unsigned long)__vdso_sigtramp32)

Please be consistent about int vs. long.  Space after cast.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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