[binutils-gdb] target: consider addressable unit size when reading/writing memory

[sergiodj+buildbot at redhat dot com]

*** TEST RESULTS FOR COMMIT d309493c38fcef624f6f85aee4aa37f4f9e3e62a ***

Author: Simon Marchi <simon.marchi@ericsson.com>
Branch: master
Commit: d309493c38fcef624f6f85aee4aa37f4f9e3e62a

target: consider addressable unit size when reading/writing memory
If we are reading/writing from a memory object, the length represents
the number of "addresses" to read/write, so the addressable unit size
needs to be taken into account when allocating memory on gdb's side.

gdb/ChangeLog:

	* target.c (target_read): Consider addressable unit size when
	reading from a memory object.
	(read_memory_robust): Same.
	(read_whatever_is_readable): Same.
	(target_write_with_progress): Consider addressable unit size
	when writing to a memory object.
	* target.h (target_read): Update documentation.
	(target_write): Add documentation.