84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/**
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* =============================================================================
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* DynamicHooks
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* Copyright (C) 2015 Robin Gohmert. All rights reserved.
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* =============================================================================
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*
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from
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* the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software in a
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* product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* asm.h/cpp from devmaster.net (thanks cybermind) edited by pRED* to handle gcc
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* -fPIC thunks correctly
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*
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* Idea and trampoline code taken from DynDetours (thanks your-name-here).
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*/
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#ifndef _X86_MS_CDECL_H
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#define _X86_MS_CDECL_H
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// ============================================================================
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// >> INCLUDES
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// ============================================================================
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#include "../convention.h"
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// ============================================================================
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// >> CLASSES
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// ============================================================================
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/*
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Source: DynCall manual and Windows docs
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Registers:
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- eax = return value
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- edx = return value
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- esp = stack pointer
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- st0 = floating point return value
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Parameter passing:
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- stack parameter order: right-to-left
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- caller cleans up the stack
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- all arguments are pushed onto the stack
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- alignment: 4 bytes
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Return values:
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- return values of pointer or intergral type (<= 32 bits) are returned via the eax register
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- integers > 32 bits are returned via the eax and edx registers
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- floating pointer types are returned via the st0 register
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*/
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class x86MsCdecl: public ICallingConvention
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{
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public:
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x86MsCdecl(ke::Vector<DataTypeSized_t> &vecArgTypes, DataTypeSized_t returnType, int iAlignment=4);
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~x86MsCdecl();
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virtual ke::Vector<Register_t> GetRegisters();
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virtual int GetPopSize();
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virtual int GetArgStackSize();
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virtual void** GetStackArgumentPtr(CRegisters* pRegisters);
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virtual void* GetArgumentPtr(int iIndex, CRegisters* pRegisters);
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virtual void ArgumentPtrChanged(int iIndex, CRegisters* pRegisters, void* pArgumentPtr);
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virtual void* GetReturnPtr(CRegisters* pRegisters);
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virtual void ReturnPtrChanged(CRegisters* pRegisters, void* pReturnPtr);
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private:
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void* m_pReturnBuffer;
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};
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#endif // _X86_MS_CDECL_H
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