2 files changed, 103 insertions, 0 deletions
diff --git a/libjava/gnu/gcj/runtime/FirstThread.java b/libjava/gnu/gcj/runtime/FirstThread.java
new file mode 100644
index 00000000000..643d153b44e
--- /dev/null
+++ b/libjava/gnu/gcj/runtime/FirstThread.java
@@ -0,0 +1,50 @@
+// FirstThread.java - Implementation of very first thread.
+
+/* Copyright (C) 1998, 1999  Red Hat, Inc.
+
+   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.  */
+
+package gnu.gcj.runtime;
+
+/**
+ * @author Tom Tromey <tromey@cygnus.com>
+ * @date August 24, 1998 
+ */
+
+// This is entirely internal to our implementation.
+
+final class FirstThread extends Thread
+{
+  public native void run ();
+
+  public FirstThread (ThreadGroup g, Class k, Object o)
+  {
+    super (g, null, "main");
+    klass = k;
+    klass_name = null;
+    args = o;
+  }
+
+  public FirstThread (ThreadGroup g, String class_name, Object o)
+  {
+    super (g, null, "main");
+    klass = null;
+    klass_name = class_name;
+    args = o;
+  }
+
+  private static void die (String s)
+  {
+    System.err.println(s);
+    System.exit(1);
+  }
+
+  // Private data.
+  private Class klass;
+  private String klass_name;
+  private Object args;
+}
diff --git a/libjava/gnu/gcj/runtime/natFirstThread.cc b/libjava/gnu/gcj/runtime/natFirstThread.cc
new file mode 100644
index 00000000000..2b8f8d4a510
--- /dev/null
+++ b/libjava/gnu/gcj/runtime/natFirstThread.cc
@@ -0,0 +1,53 @@
+// natFirstThread.cc - Implementation of FirstThread native methods.
+
+/* Copyright (C) 1998, 1999  Red Hat, Inc.
+
+   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 <stdlib.h>
+
+#include <gcj/cni.h>
+#include <jvm.h>
+
+#include <gnu/gcj/runtime/FirstThread.h>
+#include <java/lang/Class.h>
+#include <java/lang/String.h>
+#include <java/lang/System.h>
+#include <java/lang/reflect/Modifier.h>
+#include <java/io/PrintStream.h>
+
+#define DIE(Message)  die (JvNewStringLatin1 (Message))
+
+typedef void main_func (jobject);
+
+void
+gnu::gcj::runtime::FirstThread::run (void)
+{
+  Utf8Const* main_signature = _Jv_makeUtf8Const ("([Ljava.lang.String;)V", 22);
+  Utf8Const* main_name = _Jv_makeUtf8Const ("main", 4);
+
+  if (klass == NULL)
+    {
+      klass = java::lang::Class::forName (klass_name);
+      if (klass != NULL) _Jv_InitClass (klass);
+    }
+
+  _Jv_Method *meth = _Jv_GetMethodLocal (klass, main_name, main_signature);
+
+  // Some checks from Java Spec section 12.1.4.
+  if (meth == NULL)
+    DIE ("no suitable method `main' in class");
+  if (! java::lang::reflect::Modifier::isStatic(meth->accflags))
+    DIE ("`main' must be static");
+  if (! java::lang::reflect::Modifier::isPublic(meth->accflags))
+    DIE ("`main' must be public");
+
+  main_func *real_main = (main_func *) meth->ncode;
+  (*real_main) (args);
+}