Wed, 02 Jun 2010 22:45:42 -0700
Merge
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_interpreterRT_x86_32.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | |
duke@435 | 29 | #define __ _masm-> |
duke@435 | 30 | |
duke@435 | 31 | |
duke@435 | 32 | // Implementation of SignatureHandlerGenerator |
duke@435 | 33 | void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { |
duke@435 | 34 | move(offset(), jni_offset() + 1); |
duke@435 | 35 | } |
duke@435 | 36 | |
duke@435 | 37 | void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { |
duke@435 | 38 | move(offset(), jni_offset() + 2); |
duke@435 | 39 | move(offset() + 1, jni_offset() + 1); |
duke@435 | 40 | } |
duke@435 | 41 | |
duke@435 | 42 | void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { |
duke@435 | 43 | box (offset(), jni_offset() + 1); |
duke@435 | 44 | } |
duke@435 | 45 | |
duke@435 | 46 | void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) { |
duke@435 | 47 | __ movl(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset))); |
duke@435 | 48 | __ movl(Address(to(), to_offset * wordSize), temp()); |
duke@435 | 49 | } |
duke@435 | 50 | |
duke@435 | 51 | |
duke@435 | 52 | void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) { |
never@739 | 53 | __ lea(temp(), Address(from(), Interpreter::local_offset_in_bytes(from_offset))); |
never@739 | 54 | __ cmpptr(Address(from(), Interpreter::local_offset_in_bytes(from_offset)), (int32_t)NULL_WORD); // do not use temp() to avoid AGI |
duke@435 | 55 | Label L; |
duke@435 | 56 | __ jcc(Assembler::notZero, L); |
xlu@947 | 57 | __ movptr(temp(), NULL_WORD); |
duke@435 | 58 | __ bind(L); |
never@739 | 59 | __ movptr(Address(to(), to_offset * wordSize), temp()); |
duke@435 | 60 | } |
duke@435 | 61 | |
duke@435 | 62 | |
duke@435 | 63 | void InterpreterRuntime::SignatureHandlerGenerator::generate( uint64_t fingerprint) { |
duke@435 | 64 | // generate code to handle arguments |
duke@435 | 65 | iterate(fingerprint); |
duke@435 | 66 | // return result handler |
duke@435 | 67 | __ lea(rax, |
duke@435 | 68 | ExternalAddress((address)Interpreter::result_handler(method()->result_type()))); |
duke@435 | 69 | // return |
duke@435 | 70 | __ ret(0); |
duke@435 | 71 | __ flush(); |
duke@435 | 72 | } |
duke@435 | 73 | |
duke@435 | 74 | |
duke@435 | 75 | Register InterpreterRuntime::SignatureHandlerGenerator::from() { return rdi; } |
duke@435 | 76 | Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; } |
duke@435 | 77 | Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rcx; } |
duke@435 | 78 | |
duke@435 | 79 | |
duke@435 | 80 | // Implementation of SignatureHandlerLibrary |
duke@435 | 81 | |
duke@435 | 82 | void SignatureHandlerLibrary::pd_set_handler(address handler) {} |
duke@435 | 83 | |
duke@435 | 84 | class SlowSignatureHandler: public NativeSignatureIterator { |
duke@435 | 85 | private: |
duke@435 | 86 | address _from; |
duke@435 | 87 | intptr_t* _to; |
duke@435 | 88 | |
duke@435 | 89 | virtual void pass_int() { |
duke@435 | 90 | *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 91 | _from -= Interpreter::stackElementSize; |
duke@435 | 92 | } |
duke@435 | 93 | |
duke@435 | 94 | virtual void pass_long() { |
duke@435 | 95 | _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 96 | _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 97 | _to += 2; |
twisti@1861 | 98 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 99 | } |
duke@435 | 100 | |
duke@435 | 101 | virtual void pass_object() { |
duke@435 | 102 | // pass address of from |
duke@435 | 103 | intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0)); |
xlu@968 | 104 | *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr; |
twisti@1861 | 105 | _from -= Interpreter::stackElementSize; |
duke@435 | 106 | } |
duke@435 | 107 | |
duke@435 | 108 | public: |
duke@435 | 109 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to) : |
duke@435 | 110 | NativeSignatureIterator(method) { |
duke@435 | 111 | _from = from; |
duke@435 | 112 | _to = to + (is_static() ? 2 : 1); |
duke@435 | 113 | } |
duke@435 | 114 | }; |
duke@435 | 115 | |
duke@435 | 116 | IRT_ENTRY(address, InterpreterRuntime::slow_signature_handler(JavaThread* thread, methodOopDesc* method, intptr_t* from, intptr_t* to)) |
duke@435 | 117 | methodHandle m(thread, (methodOop)method); |
duke@435 | 118 | assert(m->is_native(), "sanity check"); |
duke@435 | 119 | // handle arguments |
duke@435 | 120 | SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1)); |
duke@435 | 121 | // return result handler |
duke@435 | 122 | return Interpreter::result_handler(m->result_type()); |
duke@435 | 123 | IRT_END |