--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/zero/vm/interpreterRT_zero.hpp Tue Oct 13 12:04:21 2009 -0700
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright 2007, 2008 Red Hat, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+class SignatureHandler {
+ public:
+ static SignatureHandler *from_handlerAddr(address handlerAddr) {
+ return (SignatureHandler *) handlerAddr;
+ }
+
+ public:
+ ffi_cif* cif() const {
+ return (ffi_cif *) this;
+ }
+
+ int argument_count() const {
+ return cif()->nargs;
+ }
+
+ ffi_type** argument_types() const {
+ return (ffi_type**) (cif() + 1);
+ }
+
+ ffi_type* argument_type(int i) const {
+ return argument_types()[i];
+ }
+
+ ffi_type* result_type() const {
+ return *(argument_types() + argument_count());
+ }
+
+ protected:
+ friend class InterpreterRuntime;
+ friend class SignatureHandlerLibrary;
+
+ void finalize();
+};
+
+class SignatureHandlerGeneratorBase : public NativeSignatureIterator {
+ private:
+ ffi_cif* _cif;
+
+ protected:
+ SignatureHandlerGeneratorBase(methodHandle method, ffi_cif *cif)
+ : NativeSignatureIterator(method), _cif(cif) {
+ _cif->nargs = 0;
+ }
+
+ ffi_cif *cif() const {
+ return _cif;
+ }
+
+ public:
+ void generate(uint64_t fingerprint);
+
+ private:
+ void pass_int();
+ void pass_long();
+ void pass_float();
+ void pass_double();
+ void pass_object();
+
+ private:
+ void push(BasicType type);
+ virtual void push(intptr_t value) = 0;
+};
+
+class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
+ private:
+ CodeBuffer* _cb;
+
+ public:
+ SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer)
+ : SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->code_end()),
+ _cb(buffer) {
+ _cb->set_code_end((address) (cif() + 1));
+ }
+
+ private:
+ void push(intptr_t value) {
+ intptr_t *dst = (intptr_t *) _cb->code_end();
+ _cb->set_code_end((address) (dst + 1));
+ *dst = value;
+ }
+};
+
+class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
+ private:
+ intptr_t *_dst;
+
+ public:
+ SlowSignatureHandlerGenerator(methodHandle method, intptr_t* buf)
+ : SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) {
+ _dst = (intptr_t *) (cif() + 1);
+ }
+
+ private:
+ void push(intptr_t value) {
+ *(_dst++) = value;
+ }
+
+ public:
+ SignatureHandler *handler() const {
+ return (SignatureHandler *) cif();
+ }
+};