In libobjc/: 2011-10-08 Richard Frith-Macdonald <rfm@gnu.org> Nicola Pero <nicola.pero@meta-innovation.com>

In libobjc/:
2011-10-08  Richard Frith-Macdonald <rfm@gnu.org>
            Nicola Pero  <nicola.pero@meta-innovation.com>

	PR libobjc/50428
	* sendmsg.c (__objc_send_initialize): If a class does not have an
	+initialize method, search for an +initialize method in the
	superclass and in the ancestor classes and execute the first one
	that is found.  This makes the GNU runtime behave in the same way
	as the Apple/NeXT runtime with respect to +initialize methods and
	subclassing.

In gcc/:
2011-10-08  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR libobjc/50428
	* doc/objc.texi (Garbage Collection): Updated example to protect
	+initialize against execution in subclasses.

In gcc/testsuite/:
2011-10-08  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR libobjc/50428	
	* objc/execute/initialize-1.m: New test.

From-SVN: r179711

4 files changed, 60 insertions, 1 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2bd1217..edf1716 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-10-08  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	PR libobjc/50428
+	* doc/objc.texi (Garbage Collection): Updated example to protect
+	+initialize against execution in subclasses.
+
 2011-10-07  Richard Henderson  <rth@redhat.com>
 
 	* doc/extend.texi (__builtin_shuffle): Improve the description to
diff --git a/gcc/doc/objc.texi b/gcc/doc/objc.texi
index dd04eda..a36b0e7 100644
--- a/gcc/doc/objc.texi
+++ b/gcc/doc/objc.texi
@@ -635,7 +635,8 @@ following class does this:
 
 + (void)initialize
 @{
-  class_ivar_set_gcinvisible (self, "weakPointer", YES);
+  if (self == objc_lookUpClass ("WeakPointer"))
+    class_ivar_set_gcinvisible (self, "weakPointer", YES);
 @}
 
 - initWithPointer:(const void*)p
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 02a8ffd..74ab912 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-08  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	PR libobjc/50428	
+	* objc/execute/initialize-1.m: New test.
+
 2011-10-08  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/47844
diff --git a/gcc/testsuite/objc/execute/initialize-1.m b/gcc/testsuite/objc/execute/initialize-1.m
new file mode 100644
index 0000000..9ca4aeb
--- /dev/null
+++ b/gcc/testsuite/objc/execute/initialize-1.m
@@ -0,0 +1,47 @@
+/* Contributed by Nicola Pero - Sat  8 Oct 2011 16:47:48 BST */
+#include <objc/objc.h>
+
+/* Test that if a class has no +initialize method, the superclass
+   implementation is called.  */
+
+static int class_variable = 0;
+
+@interface TestClass
+{
+  Class isa;
+}
++ (void) initialize;
++ (int) classVariable;
+@end
+
+@implementation TestClass
++ (void) initialize
+{
+  class_variable++;
+}
++ (int) classVariable
+{
+  return class_variable;
+}
+@end
+
+@interface TestSubClass : TestClass
+@end
+
+@implementation TestSubClass
+@end
+
+int main (void)
+{
+  if ([TestClass classVariable] != 1)
+    {
+      abort ();
+    }
+
+  if ([TestSubClass classVariable] != 2)
+    {
+      abort ();
+    }
+
+  return 0;
+}