mirror of
https://github.com/moparisthebest/Simba
synced 2024-08-13 16:53:59 -04:00
9d6c4ee850
git-svn-id: http://www.villavu.com/repositories/merlijn/mufasa@58 3f818213-9676-44b0-a9b4-5e4c4e03d09d
514 lines
13 KiB
PHP
514 lines
13 KiB
PHP
{ implementation of x64 abi }
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//procedure DebugBreak; external 'Kernel32.dll';
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const
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EmptyPchar: array[0..0] of char = #0;
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{$ASMMODE INTEL}
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{$IFDEF WINDOWS}
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procedure x64call(
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Address: Pointer;
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out _RAX: IPointer;
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_RCX, _RDX, _R8, _R9: IPointer;
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var _XMM0: Double;
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_XMM1, _XMM2, _XMM3: Double;
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aStack: Pointer; aItems: Integer); assembler; nostackframe;
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asm
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(* Registers:
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RCX: Address
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RDX: *_RAX
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R8: _RCX
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R9: _RDX
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fpc inserts an 20h emty space
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*)
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push ebp
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mov ebp,esp
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// call debugbreak
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push rcx // address
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push rdx // _rax
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push r8 // _rcx
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push r9 // _rdx
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mov rcx, aItems
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mov rdx, aStack
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jmp @compareitems
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@work:
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push [rdx]
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dec rcx
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sub rdx,8
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@compareitems:
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or rcx, rcx
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jnz @work
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// copy registers
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movd xmm0,[_XMM0]
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movd xmm1,_XMM1
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movd xmm2,_XMM2
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movd xmm3,_XMM3
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mov RAX, [rbp-8]
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mov RCX, [rbp-24]
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mov RDX, [rbp-32]
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mov R8, _R8
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mov R9, _R9
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// weird thing on windows, it needs 32 bytes in the CALLEE side to do whatever in
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sub RSP, 32
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call RAX
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add RSP, 32 // undo the damage done earlier
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// copy result back
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mov RDX, [rbp-16]
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mov [RDX], RAX
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movd [_XMM0],xmm0
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pop r9
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pop r8
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pop rdx
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pop rcx
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leave
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ret
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end;
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{$ELSE}
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procedure x64call(
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Address: Pointer;
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out _RAX: IPointer;
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_RDI, _RSI, _RDX, _RCX, _R8, _R9: IPointer;
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var _XMM0: Double;
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var _XMM1, _XMM2, _XMM3, _XMM4, _XMM5, _XMM6, _XMM7: Double;
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aStack: Pointer; aItems: Integer); assembler; nostackframe;
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asm
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(* Registers:
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RDI: Address
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RSI: _RAX
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RDX: _RDI
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RCX: _RSI
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R8: _RDX
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R9: _RCX
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*)
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push ebp
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mov ebp,esp
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push rdi // address
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push rsi // _rax
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push rdx // _rdi
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push rcx // _rsi
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push r8 // _rdx
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push r9 // _rcx
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mov rcx, aItems
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mov rdx, aStack
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jmp @compareitems
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@work:
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push [rdx]
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dec rcx
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sub rdx,8
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@compareitems:
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or rcx, rcx
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jnz @work
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// copy registers
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movd xmm0,[_XMM0]
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movd xmm1,_XMM1
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movd xmm2,_XMM2
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movd xmm3,_XMM3
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movd xmm4,_XMM4
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movd xmm5,_XMM5
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movd xmm6,_XMM6
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movd xmm7,_XMM7
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mov RAX, [rbp-8]
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mov RDI, [rbp-24]
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mov RSI, [rbp-32]
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mov RDX, [rbp-40]
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mov RCX, [rbp-48]
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mov R8, _R8
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mov R9, _R9
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// weird thing on windows, it needs 32 bytes in the CALLEE side to do whatever in; not sure about linux
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//sub RSP, 32
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call RAX
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// add RSP, 32 // undo the damage done earlier
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// copy result back
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mov RDX, [rbp-16]
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mov [RDX], RAX
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movd [_XMM0],xmm0
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pop r9
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pop r8
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pop rdx
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pop rcx
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pop rsi
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pop rdi
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leave
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ret
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end;
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{$ENDIF}
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function TPSExec.InnerfuseCall(_Self, Address: Pointer; CallingConv: TPSCallingConvention; Params: TPSList; res: PPSVariantIFC): Boolean;
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var
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Stack: array of Byte;
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_RAX,
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{$IFDEF WINDOWS}
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_RCX, _RDX, _R8, _R9: IPointer;
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_XMM0, _XMM1, _XMM2, _XMM3: Double;
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{$ELSE}
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_RDI, _RSI, _RDX, _RCX, _R8, _R9: IPointer;
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_XMM0, _XMM1, _XMM2, _XMM3, _XMM4, _XMM5, _XMM6, _XMM7: Double;
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RegUsageFloat: Byte;
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{$ENDIF}
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RegUsage: Byte;
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CallData: TPSList;
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I: Integer;
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pp: ^Byte;
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function rp(p: PPSVariantIFC): PPSVariantIFC;
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begin
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if p = nil then
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begin
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result := nil;
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exit;
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end;
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if p.aType.BaseType = btPointer then
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begin
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p^.aType := Pointer(Pointer(IPointer(p^.dta) + PointerSize)^);
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p^.Dta := Pointer(p^.dta^);
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end;
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Result := p;
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end;
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{$IFDEF WINDOWS}
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procedure StoreReg(data: IPointer); overload;
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var p: Pointer;
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begin
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case RegUsage of
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0: begin inc(RegUsage); _RCX:=Data; end;
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1: begin inc(RegUsage); _RDX:=Data; end;
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2: begin inc(RegUsage); _R8:=Data; end;
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3: begin inc(RegUsage); _R9:=Data; end;
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else begin
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SetLength(Stack, Length(Stack)+8);
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p := @Stack[LEngth(Stack)-8];
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IPointer(p^) := data;
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end;
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end;
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end;
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{$ELSE}
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procedure StoreReg(data: IPointer); overload;
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var p: Pointer;
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begin
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case RegUsage of
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0: begin inc(RegUsage); _RDI:=Data; end;
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1: begin inc(RegUsage); _RSI:=Data; end;
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2: begin inc(RegUsage); _RDX:=Data; end;
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3: begin inc(RegUsage); _RCX:=Data; end;
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4: begin inc(RegUsage); _R8:=Data; end;
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5: begin inc(RegUsage); _R9:=Data; end;
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else begin
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SetLength(Stack, Length(Stack)+8);
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p := @Stack[LEngth(Stack)-8];
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IPointer(p^) := data;
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end;
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end;
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end;
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{$ENDIF}
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procedure StoreStack(const aData; Len: Integer);
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var
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p: Pointer;
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begin
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if Len > 8 then
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if Length(Stack) mod 16 <> 0 then begin
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SetLength(Stack, Length(Stack)+ (16-(Length(Stack) mod 16)));
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end;
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SetLength(Stack, Length(Stack)+Len);
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p := @Stack[Length(Stack)-Len];
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Move(aData, p^, Len);
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end;
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{$IFDEF WINDOWS}
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procedure StoreReg(data: Double); overload;
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var p: Pointer;
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begin
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case RegUsage of
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0: begin inc(RegUsage); _XMM0:=Data; end;
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1: begin inc(RegUsage); _XMM1:=Data; end;
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2: begin inc(RegUsage); _XMM2:=Data; end;
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3: begin inc(RegUsage); _XMM3:=Data; end;
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else begin
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SetLength(Stack, Length(Stack)+8);
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p := @Stack[LEngth(Stack)-8];
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Double(p^) := data;
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end;
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end;
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end;
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{$ELSE}
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procedure StoreReg(data: Double); overload;
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var p: Pointer;
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begin
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case RegUsageFloat of
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0: begin inc(RegUsageFloat); _XMM0:=Data; end;
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1: begin inc(RegUsageFloat); _XMM1:=Data; end;
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2: begin inc(RegUsageFloat); _XMM2:=Data; end;
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3: begin inc(RegUsageFloat); _XMM3:=Data; end;
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4: begin inc(RegUsageFloat); _XMM4:=Data; end;
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5: begin inc(RegUsageFloat); _XMM5:=Data; end;
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6: begin inc(RegUsageFloat); _XMM6:=Data; end;
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7: begin inc(RegUsageFloat); _XMM7:=Data; end;
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else begin
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SetLength(Stack, Length(Stack)+8);
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p := @Stack[LEngth(Stack)-8];
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Double(p^) := data;
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end;
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end;
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end;
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{$ENDIF}
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function GetPtr(fVar: PPSVariantIFC): Boolean;
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var
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varPtr: Pointer;
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//UseReg: Boolean;
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//tempstr: tbtstring;
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p: Pointer;
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begin
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Result := False;
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if FVar = nil then exit;
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if fVar.VarParam then
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begin
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case fvar.aType.BaseType of
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btArray:
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begin
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if Copy(fvar.aType.ExportName, 1, 10) = '!OPENARRAY' then
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begin
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p := CreateOpenArray(True, Self, FVar);
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if p = nil then exit;
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CallData.Add(p);
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StoreReg(IPointer(POpenArray(p)^.Data));
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StoreReg(IPointer(POpenArray(p)^.ItemCount -1));
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Result := True;
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Exit;
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end else begin
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varptr := fvar.Dta;
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// Exit;
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end;
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end;
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btVariant,
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btSet,
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btStaticArray,
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btRecord,
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btInterface,
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btClass,
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{$IFNDEF PS_NOWIDESTRING} btUnicodeString, btWideString, btWideChar, {$ENDIF} btU8, btS8, btU16,
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btS16, btU32, btS32, btSingle, btDouble, btExtended, btString, btPChar, btChar, btCurrency
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{$IFNDEF PS_NOINT64}, bts64{$ENDIF}:
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begin
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Varptr := fvar.Dta;
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end;
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else begin
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exit; //invalid type
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end;
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end; {case}
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StoreReg(IPointer(VarPtr));
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end else begin
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// UseReg := True;
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case fVar^.aType.BaseType of
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btSet:
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begin
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case TPSTypeRec_Set(fvar.aType).aByteSize of
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1: StoreReg(IPointer(byte(fvar.dta^)));
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2: StoreReg(IPointer(word(fvar.dta^)));
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3, 4: StoreReg(IPointer(cardinal(fvar.dta^)));
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5,6,7,8: StoreReg(IPointer(fVar.Dta^));
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else
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StoreReg(IPointer(fvar.Dta));
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end;
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end;
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btArray:
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begin
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if Copy(fvar^.aType.ExportName, 1, 10) = '!OPENARRAY' then
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begin
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p := CreateOpenArray(False, SElf, FVar);
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if p =nil then exit;
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CallData.Add(p);
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StoreReg(IPointer(POpenArray(p)^.Data));
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StoreReg(IPointer(POpenArray(p)^.ItemCount -1));
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Result := True;
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exit;
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end else begin
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StoreReg(IPointer(FVar.Dta^));
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end;
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end;
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btVariant
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, btStaticArray, btRecord:
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begin
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StoreReg(IPointer(fVar.Dta));
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end;
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btExtended, btDouble: {8 bytes} begin
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StoreReg(double(fvar.dta^));
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end;
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btCurrency: {8 bytes} begin
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StoreReg(IPointer(fvar.dta^));
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end;
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btSingle: {4 bytes} begin
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StoreReg(single(fvar.dta^));
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end;
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btChar,
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btU8,
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btS8: begin
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StoreReg(IPointer(byte(fVar^.dta^)));
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end;
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btWideChar,
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btu16, btS16: begin
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StoreReg(IPointer(word(fVar^.dta^)));
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end;
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btu32, bts32: begin
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StoreReg(IPointer(cardinal(fVar^.dta^)));
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end;
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btPchar:
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begin
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if pointer(fvar^.dta^) = nil then
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StoreReg(IPointer(@EmptyPchar))
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else
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StoreReg(IPointer(fvar^.dta^));
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end;
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btclass, btinterface, btString:
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begin
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StoreReg(IPointer(fvar^.dta^));
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end;
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btWideString: begin
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StoreReg(IPointer(fvar^.dta^));
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end;
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btUnicodeString: begin
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StoreReg(IPointer(fvar^.dta^));
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end;
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btProcPtr:
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begin
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GetMem(p, PointerSize2);
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TMethod(p^) := MKMethod(Self, Longint(FVar.Dta^));
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StoreStack(p^, Pointersize2);
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FreeMem(p);
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end;
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bts64:
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begin
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StoreReg(IPointer(int64(fvar^.dta^)));
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end;
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end; {case}
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end;
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Result := True;
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end;
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begin
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InnerfuseCall := False;
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if Address = nil then
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exit; // need address
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SetLength(Stack, 0);
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CallData := TPSList.Create;
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res := rp(res);
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if res <> nil then
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res.VarParam := true;
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try
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{$IFNDEF WINDOWS}
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_RSI := 0;
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_RDI := 0;
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_XMM4 := 0;
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_XMM5 := 0;
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_XMM6 := 0;
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_XMM7 := 0;
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RegUsageFloat := 0;
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{$ENDIF}
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_RCX := 0;
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_RDX := 0;
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_R8 := 0;
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_R9 := 0;
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_XMM0 := 0;
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_XMM1 := 0;
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_XMM2 := 0;
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_XMM3 := 0;
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RegUsage := 0;
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if assigned(_Self) then begin
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RegUsage := 1;
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_RCX := IPointer(_Self);
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end;
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for I := 0 to Params.Count - 1 do
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begin
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if not GetPtr(rp(Params[I])) then Exit;
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end;
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if assigned(res) then begin
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case res^.aType.BaseType of
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{$IFDEF x64_string_result_as_varparameter}
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btstring, btWideString, btUnicodeString,
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{$ENDIF}
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btInterface, btArray, btrecord, btVariant, btStaticArray: GetPtr(res);
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btSet:
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begin
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if TPSTypeRec_Set(res.aType).aByteSize > PointerSize then GetPtr(res);
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end;
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end;
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if Stack = nil then pp := nil else pp := @Stack[Length(Stack) -8];
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{$IFDEF WINDOWS}
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x64call(Address, _RAX, _RCX, _RDX, _R8, _R9, _XMM0, _XMM1, _XMM2, _XMM3, pp, Length(Stack) div 8);
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{$ELSE}
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x64call(Address, _RAX, _RDI, _RSI, _RDX, _RCX, _R8, _R9,_XMM0,_XMM1, _XMM2, _XMM3, _XMM4, _XMM5, _XMM6, _XMM7, pp, Length(Stack) div 8);
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{$ENDIF}
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case res^.aType.BaseType of
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btSet:
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begin
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case TPSTypeRec_Set(res.aType).aByteSize of
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1: byte(res.Dta^) := _RAX;
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2: word(res.Dta^) := _RAX;
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3,
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4: Longint(res.Dta^) := _RAX;
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5,6,7,8: IPointer(res.dta^) := _RAX;
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end;
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end;
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btSingle: tbtsingle(res.Dta^) := _XMM0;
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btDouble: tbtdouble(res.Dta^) := _XMM0;
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btExtended: tbtextended(res.Dta^) := _XMM0;
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btchar,btU8, btS8: tbtu8(res.dta^) := _RAX;
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btWideChar, btu16, bts16: tbtu16(res.dta^) := _RAX;
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btClass : IPointer(res.dta^) := _RAX;
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btu32,bts32: tbtu32(res.dta^) := _RAX;
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btPChar: pansichar(res.dta^) := Pansichar(_RAX);
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bts64: tbts64(res.dta^) := Int64(_RAX);
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btCurrency: tbtCurrency(res.Dta^) := Int64(_RAX);
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btInterface,
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btVariant,
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{$IFDEF x64_string_result_as_varparameter}
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btWidestring,btUnicodestring, btstring ,
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{$ENDIF}
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btStaticArray, btArray, btrecord:;
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{$IFNDEF x64_string_result_as_varparameter}
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btUnicodeString, btWideString, btstring: Int64(res.dta^) := _RAX;
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{$ENDIF}
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else
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exit;
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end;
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end else begin
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if Stack = nil then pp := nil else pp := @Stack[Length(Stack) -8];
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{$IFDEF WINDOWS}
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x64call(Address, _RAX, _RCX, _RDX, _R8, _R9, _XMM0, _XMM1, _XMM2, _XMM3, pp, Length(Stack) div 8);
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{$ELSE}
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x64call(Address, _RAX, _RDI, _RSI, _RDX, _RCX, _R8, _R9,_XMM0,_XMM1, _XMM2, _XMM3, _XMM4, _XMM5, _XMM6, _XMM7, pp, Length(Stack) div 8);
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{$ENDIF}
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end;
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Result := True;
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finally
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for i := CallData.Count -1 downto 0 do
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begin
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pp := CallData[i];
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case pp^ of
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0: DestroyOpenArray(Self, Pointer(pp));
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end;
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end;
|
|
CallData.Free;
|
|
end;
|
|
end;
|
|
|
|
|