[PATCH 7/7] range stepping: doc and NEWS

Yao Qi
2013-04-11T02:44:06Z

It was reviewed and approved by Eli here
<http://sourceware.org/ml/gdb-patches/2013-03/msg00475.html>

gdb/doc:

2013-04-10 Yao Qi <yao@codesourcery.com>

* gdb.texinfo (Packets): Document about 'vCont;r'.

gdb:

2013-04-10 Yao Qi <yao@codesourcery.com>

* NEWS: Mention range stepping, new packet and new
commands.
---
gdb/NEWS | 12 ++++++++++++
gdb/doc/gdb.texinfo | 5 +++++
2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/gdb/NEWS b/gdb/NEWS
index 6f202e2..0368c10 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -10,6 +10,10 @@ maint set|show per-command time
maint set|show per-command symtab
Enable display of per-command gdb resource usage.

+maint set range-stepping
+maint show range-stepping
+ Control and show whether to do range stepping.
+
* New options

set remote trace-status-packet
@@ -240,11 +244,19 @@ show debug notification
feature to be enabled. For more information, see:
http://fedoraproject.org/wiki/Features/MiniDebugInfo

+* GDB now supports range stepping, which improves the performance of
+ single stepping over a source line by reducing the number of control
+ packets from GDB.
+
* New remote packets

QTBuffer:size
Set the size of trace buffer. The remote stub reports support for this
packet to gdb's qSupported query.
+vCont;r
+ Tell the remote stub to do range stepping in an address range. The remote
+ stub reports a stop reply when the program goes out of the range or is
+ stopped due to other reasons, such as hitting a breakpoint.

Qbtrace:bts
Enable Branch Trace Store (BTS)-based branch tracing for the current
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 9292b94..16059dc 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -36375,6 +36375,11 @@ Step.
Step with signal @var{sig}. The signal @var{sig} should be two hex digits.
@item t
Stop.
+@item r @var{start},@var{end}
+Step repeatedly while the PC is within the range [@var{start},
+@var{end}). Note that a stop reply may be sent at any point even if
+the PC is within the stepping range; for example, it is permissible to
+implement this packet in a degenerate way as a single step operation.
@end table

The optional argument @var{addr} normally associated with the
--
1.7.7.6