--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/x86/interpreterRT_x86_32.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "interpreter/interpreter.hpp"
+#include "interpreter/interpreterRuntime.hpp"
+#include "memory/allocation.inline.hpp"
+#include "memory/universe.inline.hpp"
+#include "oops/method.hpp"
+#include "oops/oop.inline.hpp"
+#include "runtime/handles.inline.hpp"
+#include "runtime/icache.hpp"
+#include "runtime/interfaceSupport.hpp"
+#include "runtime/signature.hpp"
+
+
+#define __ _masm->
+
+
+// Implementation of SignatureHandlerGenerator
+void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
+ move(offset(), jni_offset() + 1);
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
+ move(offset(), jni_offset() + 1);
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
+ move(offset(), jni_offset() + 2);
+ move(offset() + 1, jni_offset() + 1);
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
+ box (offset(), jni_offset() + 1);
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {
+ __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
+ __ movl(Address(to(), to_offset * wordSize), temp());
+}
+
+
+void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {
+ __ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset)));
+ __ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI
+ Label L;
+ __ jcc(Assembler::notZero, L);
+ __ movptr(temp(), NULL_WORD);
+ __ bind(L);
+ __ movptr(Address(to(), to_offset * wordSize), temp());
+}
+
+
+void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) {
+ // generate code to handle arguments
+ iterate(fingerprint);
+ // return result handler
+ __ lea(rax,
+ ExternalAddress((address)Interpreter::result_handler(method()->result_type())));
+ // return
+ __ ret(0);
+ __ flush();
+}
+
+
+Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rdi; }
+Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; }
+Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rcx; }
+
+
+// Implementation of SignatureHandlerLibrary
+
+void SignatureHandlerLibrary::pd_set_handler(address handler) {}
+
+class SlowSignatureHandler: public NativeSignatureIterator {
+ private:
+ address _from;
+ intptr_t* _to;
+
+ virtual void pass_int() {
+ *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ _from -= Interpreter::stackElementSize;
+ }
+
+ virtual void pass_float() {
+ *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ _from -= Interpreter::stackElementSize;
+ }
+
+ virtual void pass_long() {
+ _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
+ _to += 2;
+ _from -= 2*Interpreter::stackElementSize;
+ }
+
+ virtual void pass_object() {
+ // pass address of from
+ intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
+ *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
+ _from -= Interpreter::stackElementSize;
+ }
+
+ public:
+ SlowSignatureHandler(const methodHandle& method, address from, intptr_t* to) :
+ NativeSignatureIterator(method) {
+ _from = from;
+ _to = to + (is_static() ? 2 : 1);
+ }
+};
+
+IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* thread, Method* method, intptr_t* from, intptr_t* to))
+ methodHandle m(thread, (Method*)method);
+ assert(m->is_native(), "sanity check");
+ // handle arguments
+ SlowSignatureHandler(m, (address)from, to + 1).iterate((uint64_t)CONST64(-1));
+ // return result handler
+ return Interpreter::result_handler(m->result_type());
+IRT_END