objc-act.c (objc_eh_personality): Select personality name on runtime.

gcc/objc:

	* objc/objc-act.c (objc_eh_personality): Select personality name on
	runtime.
	(objc_init_exceptions): New.
	(objc_begin_try_stmt): Use objc_init_exceptions.
	(objc_build_throw_stmt): Likewise.

gcc/testsuite:

	* fobjc-exceptions.m: Update dg-error syntax.

From-SVN: r168020

gcc/objc/ChangeLog

+2010-12-18  Iain Sandoe  <iains@gcc.gnu.org>
+
+	* objc/objc-act.c (objc_eh_personality): Select personality name on
+	runtime.
+	(objc_init_exceptions): New.
+	(objc_begin_try_stmt): Use objc_init_exceptions.
+	(objc_build_throw_stmt): Likewise.
+
 2010-12-10  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	* objc-act.c (objc_in_class_extension): New.

gcc/objc/objc-act.c

@@ -5028,11 +5028,42 @@ tree
 objc_eh_personality (void)
 {
   if (!flag_objc_sjlj_exceptions && !objc_eh_personality_decl)
-    objc_eh_personality_decl = build_personality_function ("gnu_objc");
+    objc_eh_personality_decl = build_personality_function 
+				(flag_next_runtime
+						? "objc"
+						: "gnu_objc");
   return objc_eh_personality_decl;
 }
 #endif
 
+static void
+objc_init_exceptions (location_t loc)
+{
+  static bool done = false;
+
+  /* -fobjc-exceptions is required to enable Objective-C exceptions.
+     For example, on Darwin, ObjC exceptions require a sufficiently
+     recent version of the runtime, so the user must ask for them
+     explicitly.  On other platforms, at the moment -fobjc-exceptions
+     triggers -fexceptions which again is required for exceptions to
+     work.
+  */
+  /* TODO: we only really need one error message when the flag is missing.  */
+  if (!flag_objc_exceptions)
+    {
+      error_at (loc, "%<-fobjc-exceptions%> is required to enable Objective-C exception syntax");
+    }
+
+  if (done)
+    return;
+  done = true;
+
+#ifndef OBJCPLUS
+  if (!flag_objc_sjlj_exceptions)
+    using_eh_for_cleanups ();
+#endif
+}
+
 /* Build __builtin_eh_pointer, or the moral equivalent.  In the case
    of Darwin, we'll arrange for it to be initialized (and associated
    with a binding) later.  */
@@ -5334,17 +5365,7 @@ objc_begin_try_stmt (location_t try_locus, tree body)
   c->end_try_locus = input_location;
   cur_try_context = c;
 
-  /* -fobjc-exceptions is required to enable Objective-C exceptions.
-     For example, on Darwin, ObjC exceptions require a sufficiently
-     recent version of the runtime, so the user must ask for them
-     explicitly.  On other platforms, at the moment -fobjc-exceptions
-     triggers -fexceptions which again is required for exceptions to
-     work.
-  */
-  if (!flag_objc_exceptions)
-    {
-      error_at (try_locus, "%<-fobjc-exceptions%> is required to enable Objective-C exception syntax");
-    }
+  objc_init_exceptions (try_locus);
 
   /* Collect the list of local variables.  We'll mark them as volatile
      at the end of compilation of this function to prevent them being
@@ -5552,10 +5573,7 @@ objc_build_throw_stmt (location_t loc, tree throw_expr)
 {
   tree args;
 
-  if (!flag_objc_exceptions)
-    {
-      error_at (loc, "%<-fobjc-exceptions%> is required to enable Objective-C exception syntax");
-    }
+  objc_init_exceptions (loc); 
 
   if (throw_expr == NULL)
     {

gcc/testsuite/ChangeLog

+2010-12-18  Iain Sandoe  <iains@gcc.gnu.org>
+
+	* fobjc-exceptions.m: Update dg-error syntax.
+
 2010-12-18  Kai Tietz  <kai.tietz@onevision.com>
 
 	PR target/36834

gcc/testsuite/objc.dg/fobjc-exceptions.m

@@ -5,25 +5,24 @@
 
 int dummy (int number, Object *o)
 {
-  @try {            /* { dg-error "fobjc-exceptions" "is required to enable Objective-C exception syntax" } */
+  @try {            /* { dg-error ".-fobjc-exceptions. is required to enable Objective-C exception syntax" } */
     number++;
-    @throw o;     /* { dg-error "fobjc-exceptions" "is required to enable Objective-C exception syntax" } */
+    @throw o;     /* { dg-error ".-fobjc-exceptions. is required to enable Objective-C exception syntax" } */
   }
   @catch (id object)
     {
       number++;
-      @throw;       /* { dg-error "fobjc-exceptions" "is required to enable Objective-C exception syntax" } */
+      @throw;       /* { dg-error ".-fobjc-exceptions. is required to enable Objective-C exception syntax" } */
     }
   @finally
     {
       number++;
     }
   
-  @synchronized (o) /* { dg-error "fobjc-exceptions" "is required to enable Objective-C exception syntax" } */
+  @synchronized (o) /* { dg-error ".-fobjc-exceptions. is required to enable Objective-C exception syntax" } */
     {
       number++;
     }
   
   return number;
 }
-