[PATCH 4/8] Let tracefile has_memory and has_all_memory.

[Yao Qi <yao at codesourcery dot com>]

At present, tfile target thinks it has memory but ctf doesn't.
This is an oversight when I added ctf target support.  This patch
moves the implementations of to_has_all_memory and to_has_memory to
upper layer.  After this change, both tfile and ctf target think
they have memory.

gdb:

2014-02-122  Yao Qi  <yao@codesourcery.com>

	* tracefile-tfile.c (tfile_has_all_memory): Remove.
	(tfile_has_memory): Remove.
	(init_tfile_ops): Don't set fields to_has_all_memory and
	to_has_memory of tfile_ops.
	* tracefile.c (tracefile_has_all_memory): New function.
	(tracefile_has_memory): New function.
	(init_tracefile_ops): Initialize fields to_has_all_memory and
	to_has_memory of 'ops'.
---
 gdb/tracefile-tfile.c |   14 --------------
 gdb/tracefile.c       |   18 ++++++++++++++++++
 2 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/gdb/tracefile-tfile.c b/gdb/tracefile-tfile.c
index 205494e..80df960 100644
--- a/gdb/tracefile-tfile.c
+++ b/gdb/tracefile-tfile.c
@@ -1006,18 +1006,6 @@ tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
   return found;
 }
 
-static int
-tfile_has_all_memory (struct target_ops *ops)
-{
-  return 1;
-}
-
-static int
-tfile_has_memory (struct target_ops *ops)
-{
-  return 1;
-}
-
 /* Callback for traceframe_walk_blocks.  Builds a traceframe_info
    object for the tfile target's current traceframe.  */
 
@@ -1099,8 +1087,6 @@ init_tfile_ops (void)
   tfile_ops.to_trace_find = tfile_trace_find;
   tfile_ops.to_get_trace_state_variable_value
     = tfile_get_trace_state_variable_value;
-  tfile_ops.to_has_all_memory = tfile_has_all_memory;
-  tfile_ops.to_has_memory = tfile_has_memory;
   tfile_ops.to_traceframe_info = tfile_traceframe_info;
 }
 
diff --git a/gdb/tracefile.c b/gdb/tracefile.c
index 0f8ffc5..a2dc9fd 100644
--- a/gdb/tracefile.c
+++ b/gdb/tracefile.c
@@ -376,6 +376,22 @@ trace_save_ctf (const char *dirname, int target_does_save)
   do_cleanups (back_to);
 }
 
+/* This is the implementation of target_ops method to_has_all_memory.  */
+
+static int
+tracefile_has_all_memory (struct target_ops *ops)
+{
+  return 1;
+}
+
+/* This is the implementation of target_ops method to_has_memory.  */
+
+static int
+tracefile_has_memory (struct target_ops *ops)
+{
+  return 1;
+}
+
 /* This is the implementation of target_ops method to_has_stack.
    The target has a stack when GDB has already selected one trace
    frame.  */
@@ -424,6 +440,8 @@ init_tracefile_ops (struct target_ops *ops)
 {
   ops->to_stratum = process_stratum;
   ops->to_get_trace_status = tracefile_get_trace_status;
+  ops->to_has_all_memory = tracefile_has_all_memory;
+  ops->to_has_memory = tracefile_has_memory;
   ops->to_has_stack = tracefile_has_stack;
   ops->to_has_registers = tracefile_has_registers;
   ops->to_thread_alive = tracefile_thread_alive;
-- 
1.7.7.6