[RFA record/replay branch] Eliminate a global variable

[Michael Snyder <msnyder@vmware.com>]

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Seems like we can use target_can_async_p() here
instead of relying on a global variable.


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2008-10-02  Michael Snyder  <msnyder@vmware.com>

	* record.c (record_open): Call target_can_async_p() instead
	of relying on a global variable.
	* record.h (record_linux_async_permitted): Delete.
	* linux-nat.h (record_linux_async_permitted): Delete reference.

Index: record.c
===================================================================
RCS file: /cvs/src/src/gdb/Attic/record.c,v
retrieving revision 1.1.2.14
diff -u -p -r1.1.2.14 record.c
--- record.c	22 Sep 2008 17:43:11 -0000	1.1.2.14
+++ record.c	3 Oct 2008 00:12:38 -0000
@@ -48,7 +48,6 @@ static int record_insn_num = 0;
 struct target_ops record_ops;
 int record_resume_step = 0;
 enum exec_direction_kind record_execdir = EXEC_FORWARD;
-int record_linux_async_permitted = 0;
 static int record_get_sig = 0;
 static sigset_t record_maskall;
 static int record_not_record = 0;
@@ -423,7 +422,7 @@ record_open (char *name, int from_tty)
     {
       error (_("Record: record target can't debug inferior in non-stop mode (non-stop)."));
     }
-  if (record_linux_async_permitted)
+  if (target_can_async_p ())
     {
       error (_("Record: record target can't debug the GNU/Linux inferior in asynchronous mode (linux-async)."));
     }
Index: record.h
===================================================================
RCS file: /cvs/src/src/gdb/Attic/record.h,v
retrieving revision 1.1.2.4
diff -u -p -r1.1.2.4 record.h
--- record.h	2 Sep 2008 09:18:28 -0000	1.1.2.4
+++ record.h	3 Oct 2008 00:12:38 -0000
@@ -77,7 +77,6 @@ extern struct target_ops record_ops;
 extern int record_resume_step;
 extern int record_regcache_raw_write_regnum;
 extern enum exec_direction_kind record_execdir;
-extern int record_linux_async_permitted;
 
 extern int record_arch_list_add_reg (int num);
 extern int record_arch_list_add_mem (CORE_ADDR addr, int len);
Index: linux-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/linux-nat.c,v
retrieving revision 1.94.2.3
diff -u -p -r1.94.2.3 linux-nat.c
--- linux-nat.c	2 Sep 2008 09:18:28 -0000	1.94.2.3
+++ linux-nat.c	3 Oct 2008 00:12:38 -0000
@@ -4126,7 +4126,6 @@ set_maintenance_linux_async_permitted (c
     }
 
   linux_async_permitted = linux_async_permitted_1;
-  record_linux_async_permitted = linux_async_permitted;
   linux_nat_set_async_mode (linux_async_permitted);
 }