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* gdb.texinfo (Packets): Clarify lack of restrictions on behavior 

of stub when processing an 'm' packet.
This commit is contained in:
Jim Blandy 2005-11-15 19:58:30 +00:00
parent 8ffe25303d
commit fb031cdf9e
2 changed files with 11 additions and 7 deletions
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3
gdb/doc/ChangeLog
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@ -1,5 +1,8 @@
2005-11-15 Jim Blandy <jimb@redhat.com> 2005-11-15 Jim Blandy <jimb@redhat.com>
* gdb.texinfo (Packets): Clarify lack of restrictions on behavior
of stub when processing an 'm' packet.
* gdb.texinfo (Packets): Mention that packets beginning with * gdb.texinfo (Packets): Mention that packets beginning with
letters are reserved once, at the top, instead of actually listing letters are reserved once, at the top, instead of actually listing
them all and saying "reserved". them all and saying "reserved".

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gdb/doc/gdb.texinfo
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@ -22325,18 +22325,19 @@ thread?)}.
@cindex @code{m} packet @cindex @code{m} packet
Read @var{length} bytes of memory starting at address @var{addr}. Read @var{length} bytes of memory starting at address @var{addr}.
Neither @value{GDBN} nor the stub assume that sized memory transfers are Note that @var{addr} may not be aligned to any particular boundary.
assumed using word aligned accesses. FIXME: @emph{A word aligned memory
transfer mechanism is needed.} The stub need not use any particular size or alignment when gathering
data from memory for the response; even if @var{addr} is word-aligned
and @var{length} is a multiple of the word size, the stub is free to
use byte accesses, or not. For this reason, this packet may not be
suitable for accessing memory-mapped I/O devices.
Reply: Reply:
@table @samp @table @samp
@item @var{XX@dots{}} @item @var{XX@dots{}}
@var{XX@dots{}} is mem contents. Can be fewer bytes than requested if able @var{XX@dots{}} is mem contents. Can be fewer bytes than requested if able
to read only part of the data. Neither @value{GDBN} nor the stub assume to read only part of the data.
that sized memory transfers are assumed using word aligned
accesses. FIXME: @emph{A word aligned memory transfer mechanism is
needed.}
@item E@var{NN} @item E@var{NN}
@var{NN} is errno @var{NN} is errno
@end table @end table