--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/aarch64/vm/interpreterRT_aarch64.cpp Tue Jan 20 11:34:17 2015 -0800
@@ -0,0 +1,428 @@
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, Red Hat Inc. 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
+Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rlocals; }
+Register InterpreterRuntime::SignatureHandlerGenerator::to() { return sp; }
+Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; }
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+ switch (_num_int_args) {
+ case 0:
+ __ ldr(c_rarg1, src);
+ _num_int_args++;
+ break;
+ case 1:
+ __ ldr(c_rarg2, src);
+ _num_int_args++;
+ break;
+ case 2:
+ __ ldr(c_rarg3, src);
+ _num_int_args++;
+ break;
+ case 3:
+ __ ldr(c_rarg4, src);
+ _num_int_args++;
+ break;
+ case 4:
+ __ ldr(c_rarg5, src);
+ _num_int_args++;
+ break;
+ case 5:
+ __ ldr(c_rarg6, src);
+ _num_int_args++;
+ break;
+ case 6:
+ __ ldr(c_rarg7, src);
+ _num_int_args++;
+ break;
+ default:
+ __ ldr(r0, src);
+ __ str(r0, Address(to(), _stack_offset));
+ _stack_offset += wordSize;
+ _num_int_args++;
+ break;
+ }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
+
+ switch (_num_int_args) {
+ case 0:
+ __ ldr(c_rarg1, src);
+ _num_int_args++;
+ break;
+ case 1:
+ __ ldr(c_rarg2, src);
+ _num_int_args++;
+ break;
+ case 2:
+ __ ldr(c_rarg3, src);
+ _num_int_args++;
+ break;
+ case 3:
+ __ ldr(c_rarg4, src);
+ _num_int_args++;
+ break;
+ case 4:
+ __ ldr(c_rarg5, src);
+ _num_int_args++;
+ break;
+ case 5:
+ __ ldr(c_rarg6, src);
+ _num_int_args++;
+ break;
+ case 6:
+ __ ldr(c_rarg7, src);
+ _num_int_args++;
+ break;
+ default:
+ __ ldr(r0, src);
+ __ str(r0, Address(to(), _stack_offset));
+ _stack_offset += wordSize;
+ _num_int_args++;
+ break;
+ }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset()));
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ __ ldrs(as_FloatRegister(_num_fp_args++), src);
+ } else {
+ __ ldrh(r0, src);
+ __ strh(r0, Address(to(), _stack_offset));
+ _stack_offset += wordSize;
+ _num_fp_args++;
+ }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
+ const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1));
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ __ ldrd(as_FloatRegister(_num_fp_args++), src);
+ } else {
+ __ ldr(r0, src);
+ __ str(r0, Address(to(), _stack_offset));
+ _stack_offset += wordSize;
+ _num_fp_args++;
+ }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
+
+ switch (_num_int_args) {
+ case 0:
+ assert(offset() == 0, "argument register 1 can only be (non-null) receiver");
+ __ add(c_rarg1, from(), Interpreter::local_offset_in_bytes(offset()));
+ _num_int_args++;
+ break;
+ case 1:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg2, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg2, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ case 2:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg3, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg3, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ case 3:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg4, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg4, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ case 4:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg5, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg5, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ case 5:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg6, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg6, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ case 6:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ mov(c_rarg7, 0);
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbz(temp(), L);
+ __ mov(c_rarg7, r0);
+ __ bind(L);
+ _num_int_args++;
+ break;
+ }
+ default:
+ {
+ __ add(r0, from(), Interpreter::local_offset_in_bytes(offset()));
+ __ ldr(temp(), r0);
+ Label L;
+ __ cbnz(temp(), L);
+ __ mov(r0, zr);
+ __ bind(L);
+ __ str(r0, Address(to(), _stack_offset));
+ _stack_offset += wordSize;
+ _num_int_args++;
+ break;
+ }
+ }
+}
+
+void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
+ // generate code to handle arguments
+ iterate(fingerprint);
+
+ // set the call format
+ // n.b. allow extra 1 for the JNI_Env in c_rarg0
+ unsigned int call_format = ((_num_int_args + 1) << 6) | (_num_fp_args << 2);
+
+ switch (method()->result_type()) {
+ case T_VOID:
+ call_format |= MacroAssembler::ret_type_void;
+ break;
+ case T_FLOAT:
+ call_format |= MacroAssembler::ret_type_float;
+ break;
+ case T_DOUBLE:
+ call_format |= MacroAssembler::ret_type_double;
+ break;
+ default:
+ call_format |= MacroAssembler::ret_type_integral;
+ break;
+ }
+
+ // // store the call format in the method
+ // __ movw(r0, call_format);
+ // __ str(r0, Address(rmethod, Method::call_format_offset()));
+
+ // return result handler
+ __ lea(r0, ExternalAddress(Interpreter::result_handler(method()->result_type())));
+ __ ret(lr);
+
+ __ flush();
+}
+
+
+// Implementation of SignatureHandlerLibrary
+
+void SignatureHandlerLibrary::pd_set_handler(address handler) {}
+
+
+class SlowSignatureHandler
+ : public NativeSignatureIterator {
+ private:
+ address _from;
+ intptr_t* _to;
+ intptr_t* _int_args;
+ intptr_t* _fp_args;
+ intptr_t* _fp_identifiers;
+ unsigned int _num_int_args;
+ unsigned int _num_fp_args;
+
+ virtual void pass_int()
+ {
+ jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
+ _from -= Interpreter::stackElementSize;
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = from_obj;
+ _num_int_args++;
+ } else {
+ *_to++ = from_obj;
+ _num_int_args++;
+ }
+ }
+
+ virtual void pass_long()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ _from -= 2*Interpreter::stackElementSize;
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = from_obj;
+ _num_int_args++;
+ } else {
+ *_to++ = from_obj;
+ _num_int_args++;
+ }
+ }
+
+ virtual void pass_object()
+ {
+ intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
+ _from -= Interpreter::stackElementSize;
+
+ if (_num_int_args < Argument::n_int_register_parameters_c-1) {
+ *_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr;
+ _num_int_args++;
+ } else {
+ *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
+ _num_int_args++;
+ }
+ }
+
+ virtual void pass_float()
+ {
+ jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0));
+ _from -= Interpreter::stackElementSize;
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ *_fp_args++ = from_obj;
+ _num_fp_args++;
+ } else {
+ *_to++ = from_obj;
+ _num_int_args++;
+ }
+ }
+
+ virtual void pass_double()
+ {
+ intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
+ _from -= 2*Interpreter::stackElementSize;
+
+ if (_num_fp_args < Argument::n_float_register_parameters_c) {
+ *_fp_args++ = from_obj;
+ *_fp_identifiers |= (1 << _num_fp_args); // mark as double
+ _num_fp_args++;
+ } else {
+ *_to++ = from_obj;
+ _num_int_args++;
+ }
+ }
+
+ public:
+ SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
+ : NativeSignatureIterator(method)
+ {
+ _from = from;
+ _to = to;
+
+ _int_args = to - (method->is_static() ? 16 : 17);
+ _fp_args = to - 8;
+ _fp_identifiers = to - 9;
+ *(int*) _fp_identifiers = 0;
+ _num_int_args = (method->is_static() ? 1 : 0);
+ _num_fp_args = 0;
+ }
+
+ // n.b. allow extra 1 for the JNI_Env in c_rarg0
+ unsigned int get_call_format()
+ {
+ unsigned int call_format = ((_num_int_args + 1) << 6) | (_num_fp_args << 2);
+
+ switch (method()->result_type()) {
+ case T_VOID:
+ call_format |= MacroAssembler::ret_type_void;
+ break;
+ case T_FLOAT:
+ call_format |= MacroAssembler::ret_type_float;
+ break;
+ case T_DOUBLE:
+ call_format |= MacroAssembler::ret_type_double;
+ break;
+ default:
+ call_format |= MacroAssembler::ret_type_integral;
+ break;
+ }
+
+ return call_format;
+ }
+};
+
+
+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 ssh(m, (address)from, to);
+ ssh.iterate(UCONST64(-1));
+
+ // // set the call format
+ // method->set_call_format(ssh.get_call_format());
+
+ // return result handler
+ return Interpreter::result_handler(m->result_type());
+IRT_END