> Hello,
> 
> This patch adds target read/write partial methods.
> 
> It's almost ready for prime time.  I want to first see through some other target cleanups namely:
> +  /* FIXME: cagney/2003-10-15: This code should walk down the target
> +     stack looking for a stratum that supports the mechanism.
> +     Unfortunatly, there isn't a per-target-stack chain to walk round.
> +     Catch-22.  */
> and a s/target_ops/target/ transformation.
> 
> Note that it includes:
> +  /* Transfer up-to LEN bytes of memory starting at OFFSET.  */
> +  TARGET_OBJECT_MEMORY
> I'm going to need that when implementing a per-target CONVERT_FROM_FUNC_PTR_ADDR.

The attached is what I've ended up committing.  I didn't get to the 
s/target_ops/???/ transformation, but did get to the target stack this 
code needed.

Now for some code that really uses it ...

Andrew


> 2003-10-15  Andrew Cagney  <cagney@redhat.com>
> 
> 	* target.h (struct target_ops): Add "to_read_partial" and
> 	"to_write_partial", delete "to_query".
> 	(target_read_partial, target_write_partial): Declare.
> 	(target_read, target_write): Declare.
> 	(target_query): Delete macro.
> 	* target.c (target_read_partial): New function.
> 	(target_write_partial, target_read, target_write): New function.
> 	(update_current_target): Inherit "to_read_partial" and
> 	"to_write_partial" instead of "to_query".
> 	(debug_to_partial_read, debug_to_partial_write): Replace
> 	"debug_to_query".
> 	(setup_target_debug): Set "to_read_partial" and "to_write_partial"
> 	instead of "to_query".
> 	* remote.c (remote_read_partial): Replace "remote_query".
> 	(init_remote_ops): Set "to_read_partial" instead of "to_query".
> 	(init_remote_async_ops): Ditto.
> 	* kod.c (gdb_kod_query): Make "bufsize" a LONGEST.  Use
> 	"target_read_partial" instead of "target_query".
> 	* avr-tdep.c (avr_io_reg_read_command): Make "bufsize" a LONGEST.
> 	Use "target_read_partial" instead of "target_query".