[PATCH 7/9 v7] Remove GDBSERVER uses from linux-btrace.c

[Gary Benson <gbenson@redhat.com>]

This commit makes nat/linux-btrace.c include common-defs.h rather
than defs.h or server.h.  A couple of minor changes were required
to support this change.

This patch is unchanged from the version I posted August 1:
https://sourceware.org/ml/gdb-patches/2014-08/msg00009.html

gdb/ChangeLog:

	* nat/linux-btrace.c: Include common-defs.h.
	Don't include defs.h, server.h or gdbthread.h.
	* nat/linux-btrace.h (struct target_ops): New forward declaration.
---
 gdb/ChangeLog          |    6 ++++++
 gdb/nat/linux-btrace.c |    8 +-------
 gdb/nat/linux-btrace.h |    2 ++
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/gdb/nat/linux-btrace.c b/gdb/nat/linux-btrace.c
index cf98582..ec26f0f 100644
--- a/gdb/nat/linux-btrace.c
+++ b/gdb/nat/linux-btrace.c
@@ -19,15 +19,9 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifdef GDBSERVER
-#include "server.h"
-#else
-#include "defs.h"
-#endif
-
+#include "common-defs.h"
 #include "linux-btrace.h"
 #include "common-regcache.h"
-#include "gdbthread.h"
 #include "gdb_wait.h"
 #include "i386-cpuid.h"
 
diff --git a/gdb/nat/linux-btrace.h b/gdb/nat/linux-btrace.h
index 28a7176..e4b2604 100644
--- a/gdb/nat/linux-btrace.h
+++ b/gdb/nat/linux-btrace.h
@@ -30,6 +30,8 @@
 #  include <linux/perf_event.h>
 #endif
 
+struct target_ops;
+
 /* Branch trace target information per thread.  */
 struct btrace_target_info
 {
-- 
1.7.1