[libunwind] problems with unw_get_save_loc

[Rob Faught]

[I posted this to the wrong list earlier. Sorry.]

Hello David,

I'm having problems with unw_get_save_loc. The first seems to be at line 
157 in Gget_save_loc-ia64.c. Shouldn't the ! in the condition be removed?



  if (!IA64_IS_NULL_LOC (loc))
    {
      sloc->type = UNW_SLT_NONE;
      return 0;
    }


The other problem I have is when calling this function for floating 
point registers. It always returns UNW_SLT_NONE, and indeed, there is no 
case in the switch statement for float regs. I could be wrong but I 
believe that this worked at some point in the past.



An unrelated issue is in internal.h. I believe that hpux on ia64 should 
have a big-endian byte order.

#ifdef HAVE_ENDIAN_H
# include <endian.h>
#else
# define __LITTLE_ENDIAN    1234
# define __BIG_ENDIAN        4321
# if defined(__hpux)
#   define __BYTE_ORDER __LITTLE_ENDIAN
# else
#   error Host has unknown byte-order.
# endif
#endif


Rob Faught
Etnus