| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _BRIDGES_CPP_UNO_X86_64_ABI_HXX_ |
| #define _BRIDGES_CPP_UNO_X86_64_ABI_HXX_ |
| |
| // This is an implementation of the x86-64 ABI as described in 'System V |
| // Application Binary Interface, AMD64 Architecture Processor Supplement' |
| // (http://www.x86-64.org/documentation/abi-0.95.pdf) |
| |
| #include <typelib/typedescription.hxx> |
| |
| namespace x86_64 |
| { |
| |
| /* 6 general purpose registers are used for parameter passing */ |
| const sal_uInt32 MAX_GPR_REGS = 6; |
| |
| /* 8 SSE registers are used for parameter passing */ |
| const sal_uInt32 MAX_SSE_REGS = 8; |
| |
| /* Count number of required registers. |
| |
| Examine the argument and return set number of register required in each |
| class. |
| |
| Return false iff parameter should be passed in memory. |
| */ |
| bool examine_argument( typelib_TypeDescriptionReference *pTypeRef, bool bInReturn, int &nUsedGPR, int &nUsedSSE ); |
| |
| /** Does function that returns this type use a hidden parameter, or registers? |
| |
| The value can be returned either in a hidden 1st parameter (which is a |
| pointer to a structure allocated by the caller), or in registers (rax, rdx |
| for the integers, xmm0, xmm1 for the floating point numbers). |
| */ |
| bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ); |
| |
| void fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64* pGPR, const double* pSSE, void *pStruct ); |
| |
| } // namespace x86_64 |
| |
| #endif // _BRIDGES_CPP_UNO_X86_64_ABI_HXX_ |
