[patch] gdbserver: Add support for Z0/Z1 packets

[Aleksandar Ristovski]

Pedro Alves wrote:
> On Friday 19 June 2009 14:55:56, Aleksandar Ristovski wrote:
> 
>> RCS file: /cvs/src/src/gdb/gdbserver/target.h,v
>> retrieving revision 1.36
>> diff -u -p -r1.36 target.h
>> --- target.h    1 Apr 2009 22:50:24 -0000       1.36
>> +++ target.h    19 Jun 2009 13:47:44 -0000
>> @@ -213,6 +213,14 @@ struct target_ops
>>    int (*read_auxv) (CORE_ADDR offset, unsigned char *myaddr,
>>                     unsigned int len);
>>  
>> +  /* Insert and remove breakpoint.  Argument TYPE can be:
>> +       '0' = software-breakpoint
>> +       '1' = hardware-breakpoint 
> 
>                                    ^ spurious space
> 
>> +     Returns 0 if successful, 1 otherwise.  */
>> +
>> +  int (*insert_breakpoint) (char type, CORE_ADDR addr);
>> +  int (*remove_breakpoint) (char type, CORE_ADDR addr);
> 
> Z0 and Z1 breakpoints also take a 'len' argument, just
> like Z2-Z4.  You should also pass those down.
> 
> But, Let's take a step back --- why not just rename the
> insert_watchpoint|remove_watchpoint functions to insert_point,remove_point,
> and relax the type checks in server.c:

That was my initial implementation, prior to proposing the 
change. Then I looked at target ops in gdb; there we have 
two different functions for breakpoint and watchpoint so I 
followed that logic (even though the logic there seems to be 
incomplete: there is a pair for hw and non-hw breakponts but 
only one pair for watchpoints).

But either way is fine with me - just let me know.

Thanks,

-- 
Aleksandar Ristovski
QNX Software Systems