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| author | Jim Blandy <jimb@codesourcery.com> | 2005-11-15 19:58:30 +0000 |
|---|---|---|
| committer | Jim Blandy <jimb@codesourcery.com> | 2005-11-15 19:58:30 +0000 |
| commit | fb031cdf9e8c6fd811cdfd0184a1444cce815365 (patch) | |
| tree | c3e93dca7be260693a40e44dcc06f185c0b8509a /gdb/doc | |
| parent | 8ffe25303d3684c824549915ebf1b0163c7a7d4a (diff) | |
| download | gdb-fb031cdf9e8c6fd811cdfd0184a1444cce815365.zip gdb-fb031cdf9e8c6fd811cdfd0184a1444cce815365.tar.gz gdb-fb031cdf9e8c6fd811cdfd0184a1444cce815365.tar.bz2 | |
* gdb.texinfo (Packets): Clarify lack of restrictions on behavior
of stub when processing an 'm' packet.
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 3 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 15 |
2 files changed, 11 insertions, 7 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 5af5143..fd6d5c1 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,5 +1,8 @@ 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 letters are reserved once, at the top, instead of actually listing them all and saying "reserved". diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 8b2e7c3..a6b97b9 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -22325,18 +22325,19 @@ thread?)}. @cindex @code{m} packet Read @var{length} bytes of memory starting at address @var{addr}. -Neither @value{GDBN} nor the stub assume that sized memory transfers are -assumed using word aligned accesses. FIXME: @emph{A word aligned memory -transfer mechanism is needed.} +Note that @var{addr} may not be aligned to any particular boundary. + +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: @table @samp @item @var{XX@dots{}} @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 -that sized memory transfers are assumed using word aligned -accesses. FIXME: @emph{A word aligned memory transfer mechanism is -needed.} +to read only part of the data. @item E@var{NN} @var{NN} is errno @end table |