[rfc] Fix info spu mailbox command

[Markus Deuling]

Joel Brobecker schrieb:
> Hi Markus,
> 
>> +set msg "info spu mailbox"
>> +gdb_test_multiple "info spu mailbox " $msg {
>> +  -re "SPU Outbound Mailbox.*0x00000000.*SPU Outbound Interrupt Mailbox.*0x00000000.*$gdb_prompt $" \
>> +    { pass $msg }
>> +  default {
>> +    xfail $msg
>> +  }
>> +}
> 
> After having looked at your previous patch, it looks like you probably
> wanted to only xfail the test when the 0x number (mailbox number?) is
> 0xc0000000, but anything else is an unexpected FAIL. Also, I don't think
> you need the "default" block. So I think your test should look like this:
> 
> gdb_test_multiple "info spu mailbox" "$msg" {
>     -re "SPU Outbound Mailbox.*0x00000000.*SPU Outbound Interrupt Mailbox.*0x00000000.*$gdb_prompt $" {
>          pass "$msg"
>     }
>     -re "SPU Outbound Mailbox.*0xc0000000.*SPU Outbound Interrupt Mailbox.*0xc0000000.*$gdb_prompt $" {
>          xfail "$msg"
>     }
> }
> 

Hm, yes and no. Maybe it was not a good idea from me to check for 0xc.... Before that kernel patch
the data came from an uninitialised variable so it might have been 0xc... accidently.
I haven't seen cases != 0xc but this does not mean that this can't happen.

Only thing I can say for sure is that 0x00000000 should be the initial content. Everything else is
XFAIL because of old kernel version. 

-- 
  Markus Deuling
  GNU Toolchain for Linux on Cell BE
  deuling@de.ibm.com