gdb/doc/
	* gdb.texinfo (Create and Delete Tracepoints): Describe changed
	behavior of tracepoint.
	(General Query Packets): New feature InstallInTrace.
---
 gdb/doc/gdb.texinfo |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 520360f..2ed00bf 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -10330,7 +10330,11 @@ an address in the target program.  @xref{Specify Location}.  The
 @code{trace} command defines a tracepoint, which is a point in the
 target program where the debugger will briefly stop, collect some
 data, and then allow the program to continue.  Setting a tracepoint or
-changing its actions doesn't take effect until the next @code{tstart}
+changing its actions takes effect immediately, which  depends on the
+remote stub's support of @samp{InstallInTrace} feature (see
+@ref{install tracepoint in tracing})for remote targets.
+If remote stub doesn't support @samp{InstallInTrace} feature, all these
+changes don't take effect until the next @code{tstart}
 command, and once a trace experiment is running, further changes will
 not have any effect until the next trace experiment starts.
 
@@ -34845,6 +34849,10 @@ The remote stub understands the @samp{QDisableRandomization} packet.
 @cindex static tracepoints, in remote protocol
 The remote stub supports static tracepoints.
 
+@item InstallInTrace
+@anchor{install tracepoint in tracing}
+The remote stub supports installing tracepoint in tracing.
+
 @item EnableDisableTracepoints
 The remote stub supports the @samp{QTEnable} (@pxref{QTEnable}) and
 @samp{QTDisable} (@pxref{QTDisable}) packets that allow tracepoints
-- 
1.7.0.4