1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/zero/vm/interpreterRT_zero.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,171 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2007, 2008, 2010 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#include "precompiled.hpp"
1.30 +#include "interpreter/interpreter.hpp"
1.31 +#include "interpreter/interpreterRuntime.hpp"
1.32 +#include "memory/allocation.inline.hpp"
1.33 +#include "memory/universe.inline.hpp"
1.34 +#include "oops/method.hpp"
1.35 +#include "oops/oop.inline.hpp"
1.36 +#include "runtime/handles.inline.hpp"
1.37 +#include "runtime/icache.hpp"
1.38 +#include "runtime/interfaceSupport.hpp"
1.39 +#include "runtime/signature.hpp"
1.40 +#include "stack_zero.inline.hpp"
1.41 +
1.42 +void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() {
1.43 + push(T_INT);
1.44 + _cif->nargs++;
1.45 +}
1.46 +
1.47 +void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() {
1.48 + push(T_LONG);
1.49 + _cif->nargs++;
1.50 +}
1.51 +
1.52 +void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() {
1.53 + push(T_FLOAT);
1.54 + _cif->nargs++;
1.55 +}
1.56 +
1.57 +void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() {
1.58 + push(T_DOUBLE);
1.59 + _cif->nargs++;
1.60 +}
1.61 +
1.62 +void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() {
1.63 + push(T_OBJECT);
1.64 + _cif->nargs++;
1.65 +}
1.66 +
1.67 +void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) {
1.68 + ffi_type *ftype;
1.69 + switch (type) {
1.70 + case T_VOID:
1.71 + ftype = &ffi_type_void;
1.72 + break;
1.73 +
1.74 + case T_BOOLEAN:
1.75 + ftype = &ffi_type_uint8;
1.76 + break;
1.77 +
1.78 + case T_CHAR:
1.79 + ftype = &ffi_type_uint16;
1.80 + break;
1.81 +
1.82 + case T_BYTE:
1.83 + ftype = &ffi_type_sint8;
1.84 + break;
1.85 +
1.86 + case T_SHORT:
1.87 + ftype = &ffi_type_sint16;
1.88 + break;
1.89 +
1.90 + case T_INT:
1.91 + ftype = &ffi_type_sint32;
1.92 + break;
1.93 +
1.94 + case T_LONG:
1.95 + ftype = &ffi_type_sint64;
1.96 + break;
1.97 +
1.98 + case T_FLOAT:
1.99 + ftype = &ffi_type_float;
1.100 + break;
1.101 +
1.102 + case T_DOUBLE:
1.103 + ftype = &ffi_type_double;
1.104 + break;
1.105 +
1.106 + case T_OBJECT:
1.107 + case T_ARRAY:
1.108 + ftype = &ffi_type_pointer;
1.109 + break;
1.110 +
1.111 + default:
1.112 + ShouldNotReachHere();
1.113 + }
1.114 + push((intptr_t) ftype);
1.115 +}
1.116 +
1.117 +// For fast signature handlers the "signature handler" is generated
1.118 +// into a temporary buffer. It is then copied to its final location,
1.119 +// and pd_set_handler is called on it. We have this two stage thing
1.120 +// to accomodate this.
1.121 +
1.122 +void InterpreterRuntime::SignatureHandlerGeneratorBase::generate(
1.123 + uint64_t fingerprint) {
1.124 +
1.125 + // Build the argument types list
1.126 + pass_object();
1.127 + if (method()->is_static())
1.128 + pass_object();
1.129 + iterate(fingerprint);
1.130 +
1.131 + // Tack on the result type
1.132 + push(method()->result_type());
1.133 +}
1.134 +
1.135 +void InterpreterRuntime::SignatureHandler::finalize() {
1.136 + ffi_status status =
1.137 + ffi_prep_cif(cif(),
1.138 + FFI_DEFAULT_ABI,
1.139 + argument_count(),
1.140 + result_type(),
1.141 + argument_types());
1.142 +
1.143 + assert(status == FFI_OK, "should be");
1.144 +}
1.145 +
1.146 +IRT_ENTRY(address,
1.147 + InterpreterRuntime::slow_signature_handler(JavaThread* thread,
1.148 + Method* method,
1.149 + intptr_t* unused1,
1.150 + intptr_t* unused2))
1.151 + ZeroStack *stack = thread->zero_stack();
1.152 +
1.153 + int required_words =
1.154 + (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) +
1.155 + (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1;
1.156 +
1.157 + stack->overflow_check(required_words, CHECK_NULL);
1.158 +
1.159 + intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize);
1.160 + SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf);
1.161 + sshg.generate(UCONST64(-1));
1.162 +
1.163 + SignatureHandler *handler = sshg.handler();
1.164 + handler->finalize();
1.165 +
1.166 + return (address) handler;
1.167 +IRT_END
1.168 +
1.169 +void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) {
1.170 + InterpreterRuntime::SignatureHandler *handler =
1.171 + InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr);
1.172 +
1.173 + handler->finalize();
1.174 +}
