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Diffstat (limited to 'tools/gnu/classpath/tools/javah/JniStubPrinter.java')
-rw-r--r-- | tools/gnu/classpath/tools/javah/JniStubPrinter.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/javah/JniStubPrinter.java b/tools/gnu/classpath/tools/javah/JniStubPrinter.java new file mode 100644 index 000000000..d590a5cd1 --- /dev/null +++ b/tools/gnu/classpath/tools/javah/JniStubPrinter.java @@ -0,0 +1,98 @@ +/* JniStubPrinter.java - Generate JNI stub files + Copyright (C) 2006 Free Software Foundation, Inc. + + This file is part of GNU Classpath. + + GNU Classpath is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + GNU Classpath is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNU Classpath; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. + + Linking this library statically or dynamically with other modules is + making a combined work based on this library. Thus, the terms and + conditions of the GNU General Public License cover the whole + combination. + + As a special exception, the copyright holders of this library give you + permission to link this library with independent modules to produce an + executable, regardless of the license terms of these independent + modules, and to copy and distribute the resulting executable under + terms of your choice, provided that you also meet, for each linked + independent module, the terms and conditions of the license of that + module. An independent module is a module which is not derived from + or based on this library. If you modify this library, you may extend + this exception to your version of the library, but you are not + obligated to do so. If you do not wish to do so, delete this + exception statement from your version. */ + + +package gnu.classpath.tools.javah; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.lang.reflect.Modifier; +import java.util.Iterator; + +import org.objectweb.asm.Type; +import org.objectweb.asm.tree.MethodNode; + +public class JniStubPrinter + extends Printer +{ + + protected JniStubPrinter(Main classpath) + { + super(classpath); + } + + public void printClass(File outputDir, ClassWrapper klass) throws IOException + { + if (! klass.hasNativeMethod()) + return; + String xname = JniHelper.mangle(klass.name); + File outFile = new File(outputDir, xname + ".c"); + + JniPrintStream out = new JniPrintStream(classpath, + new FileOutputStream(outFile), + klass); + out.println("/* This file is intended to give you a head start on implementing native"); + out.println(" methods using CNI."); + out.println(" Be aware: running 'gcjh -stubs' once more for this class may"); + out.println(" overwrite any edits you have made to this file. */"); + out.println(); + out.print("#include <"); + out.print(xname); + out.println(".h>"); + + Iterator i = klass.methods.iterator(); + while (i.hasNext()) + { + MethodNode method = (MethodNode) i.next(); + if (! Modifier.isNative(method.access)) + continue; + out.println(); + out.print(Type.getReturnType(method.desc)); + out.println(); + out.print(method, xname); + out.println(); + out.println("{"); + out.print(" (*env)->FatalError (env, \""); + out.print(method, xname); + out.println(" not implemented\");"); + out.println("}"); + } + out.close(); + } + +} |