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


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


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