1 files changed, 65 insertions, 0 deletions
diff --git a/libjava/gnu/java/lang/natMainThread.cc b/libjava/gnu/java/lang/natMainThread.cc
new file mode 100644
index 000000000..5cba24700
--- /dev/null
+++ b/libjava/gnu/java/lang/natMainThread.cc
@@ -0,0 +1,65 @@
+// natMainThread.cc - Implementation of MainThread native methods.
+
+/* Copyright (C) 1998, 1999, 2000, 2001, 2003, 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java-threads.h>
+
+#include <gnu/java/lang/MainThread.h>
+#include <java/lang/Runtime.h>
+#include <java/lang/ThreadGroup.h>
+
+typedef void main_func (jobject);
+
+void
+gnu::java::lang::MainThread::call_main (void)
+{
+  Utf8Const* main_signature = _Jv_makeUtf8Const ("([Ljava.lang.String;)V", 22);
+  Utf8Const* main_name = _Jv_makeUtf8Const ("main", 4);
+
+  // This is one of the few places where we might have access to an
+  // unlinked class.
+  _Jv_Linker::wait_for_state (klass, JV_STATE_LOADING);
+
+  _Jv_Method *meth = _Jv_LookupDeclaredMethod (klass, main_name,
+					       main_signature);
+
+  // Some checks from Java Spec section 12.1.4.
+  const char *msg = NULL;
+  if (meth == NULL)
+    msg = "no suitable method `main' in class";
+  else if (! ::java::lang::reflect::Modifier::isStatic(meth->accflags))
+    msg = "`main' must be static";
+  else if (! ::java::lang::reflect::Modifier::isPublic(meth->accflags))
+    msg =  "`main' must be public";
+  if (msg != NULL)
+    {
+      fprintf (stderr, "%s\n", msg);
+      ::exit(1);
+    }
+
+  main_func *real_main = (main_func *) meth->ncode;
+  (*real_main) (args);
+
+  // Note that we do thread cleanup here.  We have to do this here and
+  // not in _Jv_RunMain; if we do if after the main thread has exited,
+  // our ThreadGroup will be null, and if Runtime.exit tries to create
+  // a new Thread (which it does when running shutdown hooks), it will
+  // eventually NPE due to this.
+  _Jv_ThreadWait ();
+
+  int status = (int) ::java::lang::ThreadGroup::had_uncaught_exception;
+  ::java::lang::Runtime::exitNoChecksAccessor (status);
+}