Tue, 08 Aug 2017 15:57:29 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * Copyright 2007, 2008, 2010 Red Hat, Inc. |
aoqi@0 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 5 | * |
aoqi@0 | 6 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 7 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 8 | * published by the Free Software Foundation. |
aoqi@0 | 9 | * |
aoqi@0 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 14 | * accompanied this code). |
aoqi@0 | 15 | * |
aoqi@0 | 16 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 19 | * |
aoqi@0 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 21 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 22 | * questions. |
aoqi@0 | 23 | * |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | #include "precompiled.hpp" |
aoqi@0 | 27 | #include "interpreter/interpreter.hpp" |
aoqi@0 | 28 | #include "interpreter/interpreterRuntime.hpp" |
aoqi@0 | 29 | #include "memory/allocation.inline.hpp" |
aoqi@0 | 30 | #include "memory/universe.inline.hpp" |
aoqi@0 | 31 | #include "oops/method.hpp" |
aoqi@0 | 32 | #include "oops/oop.inline.hpp" |
aoqi@0 | 33 | #include "runtime/handles.inline.hpp" |
aoqi@0 | 34 | #include "runtime/icache.hpp" |
aoqi@0 | 35 | #include "runtime/interfaceSupport.hpp" |
aoqi@0 | 36 | #include "runtime/signature.hpp" |
aoqi@0 | 37 | #include "stack_zero.inline.hpp" |
aoqi@0 | 38 | |
aoqi@0 | 39 | void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() { |
aoqi@0 | 40 | push(T_INT); |
aoqi@0 | 41 | _cif->nargs++; |
aoqi@0 | 42 | } |
aoqi@0 | 43 | |
aoqi@0 | 44 | void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() { |
aoqi@0 | 45 | push(T_LONG); |
aoqi@0 | 46 | _cif->nargs++; |
aoqi@0 | 47 | } |
aoqi@0 | 48 | |
aoqi@0 | 49 | void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() { |
aoqi@0 | 50 | push(T_FLOAT); |
aoqi@0 | 51 | _cif->nargs++; |
aoqi@0 | 52 | } |
aoqi@0 | 53 | |
aoqi@0 | 54 | void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() { |
aoqi@0 | 55 | push(T_DOUBLE); |
aoqi@0 | 56 | _cif->nargs++; |
aoqi@0 | 57 | } |
aoqi@0 | 58 | |
aoqi@0 | 59 | void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() { |
aoqi@0 | 60 | push(T_OBJECT); |
aoqi@0 | 61 | _cif->nargs++; |
aoqi@0 | 62 | } |
aoqi@0 | 63 | |
aoqi@0 | 64 | void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) { |
aoqi@0 | 65 | ffi_type *ftype; |
aoqi@0 | 66 | switch (type) { |
aoqi@0 | 67 | case T_VOID: |
aoqi@0 | 68 | ftype = &ffi_type_void; |
aoqi@0 | 69 | break; |
aoqi@0 | 70 | |
aoqi@0 | 71 | case T_BOOLEAN: |
aoqi@0 | 72 | ftype = &ffi_type_uint8; |
aoqi@0 | 73 | break; |
aoqi@0 | 74 | |
aoqi@0 | 75 | case T_CHAR: |
aoqi@0 | 76 | ftype = &ffi_type_uint16; |
aoqi@0 | 77 | break; |
aoqi@0 | 78 | |
aoqi@0 | 79 | case T_BYTE: |
aoqi@0 | 80 | ftype = &ffi_type_sint8; |
aoqi@0 | 81 | break; |
aoqi@0 | 82 | |
aoqi@0 | 83 | case T_SHORT: |
aoqi@0 | 84 | ftype = &ffi_type_sint16; |
aoqi@0 | 85 | break; |
aoqi@0 | 86 | |
aoqi@0 | 87 | case T_INT: |
aoqi@0 | 88 | ftype = &ffi_type_sint32; |
aoqi@0 | 89 | break; |
aoqi@0 | 90 | |
aoqi@0 | 91 | case T_LONG: |
aoqi@0 | 92 | ftype = &ffi_type_sint64; |
aoqi@0 | 93 | break; |
aoqi@0 | 94 | |
aoqi@0 | 95 | case T_FLOAT: |
aoqi@0 | 96 | ftype = &ffi_type_float; |
aoqi@0 | 97 | break; |
aoqi@0 | 98 | |
aoqi@0 | 99 | case T_DOUBLE: |
aoqi@0 | 100 | ftype = &ffi_type_double; |
aoqi@0 | 101 | break; |
aoqi@0 | 102 | |
aoqi@0 | 103 | case T_OBJECT: |
aoqi@0 | 104 | case T_ARRAY: |
aoqi@0 | 105 | ftype = &ffi_type_pointer; |
aoqi@0 | 106 | break; |
aoqi@0 | 107 | |
aoqi@0 | 108 | default: |
aoqi@0 | 109 | ShouldNotReachHere(); |
aoqi@0 | 110 | } |
aoqi@0 | 111 | push((intptr_t) ftype); |
aoqi@0 | 112 | } |
aoqi@0 | 113 | |
aoqi@0 | 114 | // For fast signature handlers the "signature handler" is generated |
aoqi@0 | 115 | // into a temporary buffer. It is then copied to its final location, |
aoqi@0 | 116 | // and pd_set_handler is called on it. We have this two stage thing |
aoqi@0 | 117 | // to accomodate this. |
aoqi@0 | 118 | |
aoqi@0 | 119 | void InterpreterRuntime::SignatureHandlerGeneratorBase::generate( |
aoqi@0 | 120 | uint64_t fingerprint) { |
aoqi@0 | 121 | |
aoqi@0 | 122 | // Build the argument types list |
aoqi@0 | 123 | pass_object(); |
aoqi@0 | 124 | if (method()->is_static()) |
aoqi@0 | 125 | pass_object(); |
aoqi@0 | 126 | iterate(fingerprint); |
aoqi@0 | 127 | |
aoqi@0 | 128 | // Tack on the result type |
aoqi@0 | 129 | push(method()->result_type()); |
aoqi@0 | 130 | } |
aoqi@0 | 131 | |
aoqi@0 | 132 | void InterpreterRuntime::SignatureHandler::finalize() { |
aoqi@0 | 133 | ffi_status status = |
aoqi@0 | 134 | ffi_prep_cif(cif(), |
aoqi@0 | 135 | FFI_DEFAULT_ABI, |
aoqi@0 | 136 | argument_count(), |
aoqi@0 | 137 | result_type(), |
aoqi@0 | 138 | argument_types()); |
aoqi@0 | 139 | |
aoqi@0 | 140 | assert(status == FFI_OK, "should be"); |
aoqi@0 | 141 | } |
aoqi@0 | 142 | |
aoqi@0 | 143 | IRT_ENTRY(address, |
aoqi@0 | 144 | InterpreterRuntime::slow_signature_handler(JavaThread* thread, |
aoqi@0 | 145 | Method* method, |
aoqi@0 | 146 | intptr_t* unused1, |
aoqi@0 | 147 | intptr_t* unused2)) |
aoqi@0 | 148 | ZeroStack *stack = thread->zero_stack(); |
aoqi@0 | 149 | |
aoqi@0 | 150 | int required_words = |
aoqi@0 | 151 | (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) + |
aoqi@0 | 152 | (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1; |
aoqi@0 | 153 | |
aoqi@0 | 154 | stack->overflow_check(required_words, CHECK_NULL); |
aoqi@0 | 155 | |
aoqi@0 | 156 | intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize); |
aoqi@0 | 157 | SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf); |
aoqi@0 | 158 | sshg.generate(UCONST64(-1)); |
aoqi@0 | 159 | |
aoqi@0 | 160 | SignatureHandler *handler = sshg.handler(); |
aoqi@0 | 161 | handler->finalize(); |
aoqi@0 | 162 | |
aoqi@0 | 163 | return (address) handler; |
aoqi@0 | 164 | IRT_END |
aoqi@0 | 165 | |
aoqi@0 | 166 | void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) { |
aoqi@0 | 167 | InterpreterRuntime::SignatureHandler *handler = |
aoqi@0 | 168 | InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); |
aoqi@0 | 169 | |
aoqi@0 | 170 | handler->finalize(); |
aoqi@0 | 171 | } |