[PATCH 2/2] gdbserver: Add linux_get_hwcap

[Ulrich Weigand]

Pedro Franco de Carvalho wrote: 

> Note that there is a difference in the interface between linux_get_auxv
> and linux_get_hwcap(2), the latter still return both the status and the
> entry value, but I didn't want to change all their users.

Actually, I think this is fine -- for hwcap, 0 is a natural default
value to use if the entry is not present.
 
> Also, contrary to the gdb client version (target_auxv_search
> gdb/auxv.c), this one doesn't differentiate between an error and the
> entry not being found.

That also seems reasonable.  If anybody requires more specific error
handling, that can always be added later.

> gdb/gdbserver/ChangeLog:
> 2019-04-DD  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>
> 
> 	* linux-low.c (linux_get_auxv): Remove static.  Return auxv entry
> 	value in argument pointer, return 1 if the entry is found and 0
> 	otherwise.  Move comment.
> 	(linux_get_hwcap, linux_get_hwcap2): Use modified linux_get_auxv.
> 	* linux-low.h (linux_get_auxv): Declare.
> 	* linux-ppc-low.c (is_elfv2_inferior): Use linux_get_auxv.

This is OK.

Thanks,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com