btrace, gdbserver: read branch trace incrementally

[deliverable/binutils-gdb.git] / gdb / doc / gdb.texinfo

diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index d0f2f71ac9ecccce62c426d0151722a53e711706..57071d16224981b4f93a2e11b9602533a63fcc70 100644 (file)
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -39978,6 +39978,14 @@ Returns all available branch trace.
 @item new
 Returns all available branch trace if the branch trace changed since
 the last read request.
+
+@item delta
+Returns the new branch trace since the last read request.  Adds a new
+block to the end of the trace that begins at zero and ends at the source
+location of the first branch in the trace buffer.  This extra block is
+used to stitch traces together.
+
+If the trace buffer overflowed, returns an error indicating the overflow.
 @end table
 
 This packet is not probed by default; the remote stub must request it