Mercurial > hg > truffle
annotate src/cpu/zero/vm/interpreterRT_zero.cpp @ 1673:6709c14587c2 jdk7-b105
Added tag jdk7-b104 for changeset b4acf10eb134
| author | cl |
|---|---|
| date | Fri, 06 Aug 2010 12:51:54 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 1010 | 1 /* |
|
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2 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved. |
| 1379 | 3 * Copyright 2007, 2008, 2010 Red Hat, Inc. |
| 1010 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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21 * or visit www.oracle.com if you need additional information or have any |
|
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22 * questions. |
| 1010 | 23 * |
| 24 */ | |
| 25 | |
| 26 #include "incls/_precompiled.incl" | |
| 27 #include "incls/_interpreterRT_zero.cpp.incl" | |
| 28 | |
| 29 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() { | |
| 30 push(T_INT); | |
| 31 _cif->nargs++; | |
| 32 } | |
| 33 | |
| 34 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() { | |
| 35 push(T_LONG); | |
| 36 _cif->nargs++; | |
| 37 } | |
| 38 | |
| 39 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() { | |
| 40 push(T_FLOAT); | |
| 41 _cif->nargs++; | |
| 42 } | |
| 43 | |
| 44 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() { | |
| 45 push(T_DOUBLE); | |
| 46 _cif->nargs++; | |
| 47 } | |
| 48 | |
| 49 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() { | |
| 50 push(T_OBJECT); | |
| 51 _cif->nargs++; | |
| 52 } | |
| 53 | |
| 54 void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) { | |
| 55 ffi_type *ftype; | |
| 56 switch (type) { | |
| 57 case T_VOID: | |
| 58 ftype = &ffi_type_void; | |
| 59 break; | |
| 60 | |
| 61 case T_BOOLEAN: | |
| 62 ftype = &ffi_type_uint8; | |
| 63 break; | |
| 64 | |
| 65 case T_CHAR: | |
| 66 ftype = &ffi_type_uint16; | |
| 67 break; | |
| 68 | |
| 69 case T_BYTE: | |
| 70 ftype = &ffi_type_sint8; | |
| 71 break; | |
| 72 | |
| 73 case T_SHORT: | |
| 74 ftype = &ffi_type_sint16; | |
| 75 break; | |
| 76 | |
| 77 case T_INT: | |
| 78 ftype = &ffi_type_sint32; | |
| 79 break; | |
| 80 | |
| 81 case T_LONG: | |
| 82 ftype = &ffi_type_sint64; | |
| 83 break; | |
| 84 | |
| 85 case T_FLOAT: | |
| 86 ftype = &ffi_type_float; | |
| 87 break; | |
| 88 | |
| 89 case T_DOUBLE: | |
| 90 ftype = &ffi_type_double; | |
| 91 break; | |
| 92 | |
| 93 case T_OBJECT: | |
| 94 case T_ARRAY: | |
| 95 ftype = &ffi_type_pointer; | |
| 96 break; | |
| 97 | |
| 98 default: | |
| 99 ShouldNotReachHere(); | |
| 100 } | |
| 101 push((intptr_t) ftype); | |
| 102 } | |
| 103 | |
| 104 // For fast signature handlers the "signature handler" is generated | |
| 105 // into a temporary buffer. It is then copied to its final location, | |
| 106 // and pd_set_handler is called on it. We have this two stage thing | |
| 107 // to accomodate this. | |
| 108 | |
| 109 void InterpreterRuntime::SignatureHandlerGeneratorBase::generate( | |
| 110 uint64_t fingerprint) { | |
| 111 | |
| 112 // Build the argument types list | |
| 113 pass_object(); | |
| 114 if (method()->is_static()) | |
| 115 pass_object(); | |
| 116 iterate(fingerprint); | |
| 117 | |
| 118 // Tack on the result type | |
| 119 push(method()->result_type()); | |
| 120 } | |
| 121 | |
| 122 void InterpreterRuntime::SignatureHandler::finalize() { | |
| 123 ffi_status status = | |
| 124 ffi_prep_cif(cif(), | |
| 125 FFI_DEFAULT_ABI, | |
| 126 argument_count(), | |
| 127 result_type(), | |
| 128 argument_types()); | |
| 129 | |
| 130 assert(status == FFI_OK, "should be"); | |
| 131 } | |
| 132 | |
| 133 IRT_ENTRY(address, | |
| 134 InterpreterRuntime::slow_signature_handler(JavaThread* thread, | |
| 135 methodOop method, | |
| 136 intptr_t* unused1, | |
| 137 intptr_t* unused2)) | |
| 138 ZeroStack *stack = thread->zero_stack(); | |
| 139 | |
| 140 int required_words = | |
| 141 (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) + | |
| 142 (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1; | |
| 1379 | 143 |
| 144 stack->overflow_check(required_words, CHECK_NULL); | |
| 1010 | 145 |
| 146 intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize); | |
| 147 SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf); | |
| 148 sshg.generate(UCONST64(-1)); | |
| 149 | |
| 150 SignatureHandler *handler = sshg.handler(); | |
| 151 handler->finalize(); | |
| 152 | |
| 153 return (address) handler; | |
| 154 IRT_END | |
| 155 | |
| 156 void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) { | |
| 157 InterpreterRuntime::SignatureHandler *handler = | |
| 158 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
| 159 | |
| 160 handler->finalize(); | |
| 161 } |