[PATCH c++ 02/12] ctf.c: Fix int/enum implicit cast

[Simon Marchi <simon.marchi@polymtl.ca>]

This patch was taken directly from Pedro's branch.

Right now, SET_INT32_FIELD is used to set enum fields.  This works in C,
but not C++.  Therefore, define the new SET_ENUM_FIELD, which casts the
value to the right enum type.

gdb/ChangeLog:

	* ctf.c (SET_ENUM_FIELD): New macro.
	(ctf_read_status): Use it.
	(ctf_read_tp): Use it.
---
 gdb/ctf.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/gdb/ctf.c b/gdb/ctf.c
index 6c1aede..cb0d707 100644
--- a/gdb/ctf.c
+++ b/gdb/ctf.c
@@ -914,6 +914,12 @@ ctf_open_dir (const char *dirname)
 							   (SCOPE),	\
 							   #FIELD))
 
+#define SET_ENUM_FIELD(EVENT, SCOPE, VAR, TYPE, FIELD)			\
+  (VAR)->FIELD = (TYPE) bt_ctf_get_int64 (bt_ctf_get_field ((EVENT),	\
+							    (SCOPE),	\
+							    #FIELD))
+
+
 /* EVENT is the "status" event and TS is filled in.  */
 
 static void
@@ -922,7 +928,7 @@ ctf_read_status (struct bt_ctf_event *event, struct trace_status *ts)
   const struct bt_definition *scope
     = bt_ctf_get_top_level_scope (event, BT_EVENT_FIELDS);
 
-  SET_INT32_FIELD (event, scope, ts, stop_reason);
+  SET_ENUM_FIELD (event, scope, ts, enum trace_stop_reason, stop_reason);
   SET_INT32_FIELD (event, scope, ts, stopping_tracepoint);
   SET_INT32_FIELD (event, scope, ts, traceframe_count);
   SET_INT32_FIELD (event, scope, ts, traceframes_created);
@@ -1058,7 +1064,7 @@ ctf_read_tp (struct uploaded_tp **uploaded_tps)
       SET_INT32_FIELD (event, scope, utp, step);
       SET_INT32_FIELD (event, scope, utp, pass);
       SET_INT32_FIELD (event, scope, utp, hit_count);
-      SET_INT32_FIELD (event, scope, utp, type);
+      SET_ENUM_FIELD (event, scope, utp, enum bptype, type);
 
       /* Read 'cmd_strings'.  */
       SET_ARRAY_FIELD (event, scope, utp, cmd_num, cmd_strings);
-- 
2.6.2