gcc/libjava/java/lang/natFirstThread.cc
Tom Tromey ee9dd3721b Initial revision
From-SVN: r26263
1999-04-07 14:42:40 +00:00

57 lines
1.6 KiB
C++

// natFirstThread.cc - Implementation of FirstThread native methods.
/* Copyright (C) 1998, 1999 Cygnus Solutions
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 <cni.h>
#include <jvm.h>
#include <java/lang/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
java::lang::FirstThread::run (void)
{
Utf8Const* main_signature = _Jv_makeUtf8Const ("([Ljava.lang.String;)V", 22);
Utf8Const* main_name = _Jv_makeUtf8Const ("main", 4);
#if 0
// Note: this turns out to be more painful than useful. Apparently
// many people rely on being able to have main in a non-public
// class.
// This is based on my reading of 12.3.3.
if (! java::lang::reflect::Modifier::isPublic(klass->getModifiers()))
DIE ("class must be public");
#endif
_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);
}