[obv] Add static for some variables

[Yao Qi <yao at codesourcery dot com>]

Hi,
These variables in tracepoint.c are not used outside of this file, so
'static' is added to them.  Applied as obvious.

gdb:

2012-07-31  Yao Qi  <yao@codesourcery.com>

	* tracepoint.c: Add 'static' for some variables.
---
 gdb/tracepoint.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index cc531fb..32407d1 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -3623,17 +3623,17 @@ merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs)
 
 /* target tfile command */
 
-struct target_ops tfile_ops;
+static struct target_ops tfile_ops;
 
 /* Fill in tfile_ops with its defined operations and properties.  */
 
 #define TRACE_HEADER_SIZE 8
 
-char *trace_filename;
-int trace_fd = -1;
-off_t trace_frames_offset;
-off_t cur_offset;
-int cur_data_size;
+static char *trace_filename;
+static int trace_fd = -1;
+static off_t trace_frames_offset;
+static off_t cur_offset;
+static int cur_data_size;
 int trace_regblock_size;
 
 static void tfile_interp_line (char *line,
-- 
1.7.7.6