gdbserver: turn target ops 'supports_{fork,vfork,exec}_events' into methods

gdbserver/ChangeLog:
2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	Turn process_stratum_target's supports_fork_events,
	supports_vfork_events, and supports_exec_events ops into methods
	of process_target.

	* target.h (struct process_stratum_target): Remove the target ops.
	(class process_target): Add the target ops.
	(target_supports_fork_events): Update the macro.
	(target_supports_vfork_events): Update the macro.
	(target_supports_exec_events): Update the macro.
	* target.cc (process_target::supports_fork_events): Define.
	(process_target::supports_vfork_events): Define.
	(process_target::supports_exec_events): Define.

	Update the derived classes and callers below.

	* linux-low.cc (linux_target_ops): Update.
	(linux_supports_fork_events): Turn into ...
	(linux_process_target::supports_fork_events): ... this.
	(linux_supports_vfork_events): Turn into ...
	(linux_process_target::supports_vfork_events): ... this.
	(linux_supports_exec_events): Turn into ...
	(linux_process_target::supports_exec_events): ... this.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	* nto-low.cc (nto_target_ops): Update.
	* win32-low.cc (win32_target_ops): Update.

1 files changed, 6 insertions, 9 deletions

diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index a00c74c..65a7452 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -6346,24 +6346,24 @@ linux_process_target::supports_multi_process ()
 
 /* Check if fork events are supported.  */
 
-static int
-linux_supports_fork_events (void)
+bool
+linux_process_target::supports_fork_events ()
 {
   return linux_supports_tracefork ();
 }
 
 /* Check if vfork events are supported.  */
 
-static int
-linux_supports_vfork_events (void)
+bool
+linux_process_target::supports_vfork_events ()
 {
   return linux_supports_tracefork ();
 }
 
 /* Check if exec events are supported.  */
 
-static int
-linux_supports_exec_events (void)
+bool
+linux_process_target::supports_exec_events ()
 {
   return linux_supports_traceexec ();
 }
@@ -7429,9 +7429,6 @@ linux_get_hwcap2 (int wordsize)
 static linux_process_target the_linux_target;
 
 static process_stratum_target linux_target_ops = {
-  linux_supports_fork_events,
-  linux_supports_vfork_events,
-  linux_supports_exec_events,
   linux_handle_new_gdb_connection,
 #ifdef USE_THREAD_DB
   thread_db_handle_monitor_command,