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/*** |
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*setjmp.h - definitions/declarations for setjmp/longjmp routines |
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* |
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* Copyright (c) Microsoft Corporation. All rights reserved. |
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* |
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*Purpose: |
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* This file defines the machine-dependent buffer used by |
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* setjmp/longjmp to save and restore the program state, and |
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* declarations for those routines. |
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* [ANSI/System V] |
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* |
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* [Public] |
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* |
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****/ |
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#if _MSC_VER > 1000 |
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#pragma once |
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#endif |
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#ifndef _INC_SETJMP |
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#define _INC_SETJMP |
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#include <crtdefs.h> |
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#if defined(_M_CEE) |
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/* |
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* The reason why simple setjmp won't work here is that there may |
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* be case when CLR stubs are on the stack e.g. function call just |
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* after jitting, and not unwinding CLR will result in bad state of |
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* CLR which then can AV or do something very bad. |
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*/ |
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#include <setjmpex.h> |
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#endif /* defined(_M_CEE) */ |
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#ifdef _MSC_VER |
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/* |
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* Currently, all MS C compilers for Win32 platforms default to 8 byte |
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* alignment. |
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*/ |
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#pragma pack(push,_CRT_PACKING) |
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#endif /* _MSC_VER */ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/* |
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* Definitions specific to particular setjmp implementations. |
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*/ |
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#if defined(_M_IX86) |
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/* |
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* MS compiler for x86 |
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*/ |
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#ifndef _INC_SETJMPEX |
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#define setjmp _setjmp |
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#endif |
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#define _JBLEN 16 |
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#define _JBTYPE int |
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/* |
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* Define jump buffer layout for x86 setjmp/longjmp. |
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*/ |
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typedef struct __JUMP_BUFFER { |
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unsigned long Ebp; |
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unsigned long Ebx; |
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unsigned long Edi; |
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unsigned long Esi; |
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unsigned long Esp; |
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unsigned long Eip; |
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unsigned long Registration; |
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unsigned long TryLevel; |
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unsigned long Cookie; |
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unsigned long UnwindFunc; |
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unsigned long UnwindData[6]; |
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} _JUMP_BUFFER; |
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#elif defined(_M_IA64) |
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/* |
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* Minimum length is 528 bytes |
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* Since this is allocated as an array of "SETJMP_FLOAT128", the |
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* number of entries required is 33 (16-byte aligned). |
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*/ |
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/* Avoid conflicts with winnt.h FLOAT128 by giving the typedef another name. */ |
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typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 { |
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__int64 LowPart; |
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__int64 HighPart; |
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} SETJMP_FLOAT128; |
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#define _JBLEN 33 |
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typedef SETJMP_FLOAT128 _JBTYPE; |
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#ifndef _INC_SETJMPEX |
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#define setjmp _setjmp |
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#endif |
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/* |
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* Define jump buffer layout for IA64 setjmp/longjmp. |
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*/ |
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typedef struct __JUMP_BUFFER { |
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/* |
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* x86 reserved. |
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*/ |
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unsigned long iAReserved[6]; |
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/* |
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* x86 C9.0 compatibility |
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*/ |
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unsigned long Registration; /* point to the UnwindData field. */ |
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unsigned long TryLevel; /* ignored by setjmp */ |
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unsigned long Cookie; /* set to "VC20" by setjmp */ |
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unsigned long UnwindFunc; /* set to EM longjmp() by setjmp */ |
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/* |
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* First dword is zero to indicate it's an exception registration |
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* record prepared by EM setjmp function. |
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* Second dword is set to 0 for unsafe EM setjmp, and 1 for safe |
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* EM setjmp. |
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* Third dword is set to the setjmp site memory stack frame pointer. |
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* Fourth dword is set to the setjmp site backing store frame pointer. |
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*/ |
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unsigned long UnwindData[6]; |
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/* |
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* floating point status register, |
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* and preserved floating point registers fs0 - fs19 |
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*/ |
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SETJMP_FLOAT128 FltS0; |
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SETJMP_FLOAT128 FltS1; |
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SETJMP_FLOAT128 FltS2; |
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SETJMP_FLOAT128 FltS3; |
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SETJMP_FLOAT128 FltS14; |
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SETJMP_FLOAT128 FltS15; |
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SETJMP_FLOAT128 FltS16; |
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SETJMP_FLOAT128 FltS17; |
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SETJMP_FLOAT128 FltS18; |
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SETJMP_FLOAT128 FltS19; |
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__int64 FPSR; |
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/* |
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* return link and preserved branch registers bs0 - bs4 |
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*/ |
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__int64 StIIP; /* continuation address */ |
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__int64 BrS0; |
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__int64 BrS1; |
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__int64 BrS2; |
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__int64 BrS3; |
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__int64 BrS4; |
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/* |
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* preserved general registers s0 - s3, sp, nats |
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*/ |
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__int64 IntS0; |
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__int64 IntS1; |
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__int64 IntS2; |
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__int64 IntS3; |
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/* |
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* bsp, pfs, unat, lc |
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*/ |
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__int64 RsBSP; |
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__int64 RsPFS; /* previous frame marker (cfm of setjmp's caller) */ |
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__int64 ApUNAT; /* User Nat collection register (preserved) */ |
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__int64 ApLC; /* loop counter */ |
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__int64 IntSp; /* memory stack pointer */ |
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__int64 IntNats; /* Nat bits of preserved integer regs s0 - s3 */ |
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__int64 Preds; /* predicates */ |
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} _JUMP_BUFFER; |
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#elif defined(_M_AMD64) |
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typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 { |
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unsigned __int64 Part[2]; |
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} SETJMP_FLOAT128; |
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#define _JBLEN 16 |
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typedef SETJMP_FLOAT128 _JBTYPE; |
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#ifndef _INC_SETJMPEX |
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#define setjmp _setjmp |
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#endif |
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typedef struct _JUMP_BUFFER { |
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unsigned __int64 Frame; |
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unsigned __int64 Rbx; |
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unsigned __int64 Rsp; |
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unsigned __int64 Rbp; |
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unsigned __int64 Rsi; |
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unsigned __int64 Rdi; |
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unsigned __int64 R12; |
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unsigned __int64 R13; |
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unsigned __int64 R14; |
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unsigned __int64 R15; |
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unsigned __int64 Rip; |
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unsigned __int64 Spare; |
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SETJMP_FLOAT128 Xmm6; |
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SETJMP_FLOAT128 Xmm7; |
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SETJMP_FLOAT128 Xmm8; |
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SETJMP_FLOAT128 Xmm9; |
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SETJMP_FLOAT128 Xmm10; |
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SETJMP_FLOAT128 Xmm11; |
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SETJMP_FLOAT128 Xmm12; |
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SETJMP_FLOAT128 Xmm13; |
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SETJMP_FLOAT128 Xmm14; |
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SETJMP_FLOAT128 Xmm15; |
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} _JUMP_BUFFER; |
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#endif |
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/* Define the buffer type for holding the state information */ |
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#ifndef _JMP_BUF_DEFINED |
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typedef _JBTYPE jmp_buf[_JBLEN]; |
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#define _JMP_BUF_DEFINED |
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#endif |
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/* Function prototypes */ |
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int __cdecl setjmp(_Out_ jmp_buf _Buf); |
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#ifdef __cplusplus |
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} |
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#endif |
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#ifdef __cplusplus |
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extern "C" |
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{ |
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_CRTIMP __declspec(noreturn) void __cdecl longjmp(_In_ jmp_buf _Buf, _In_ int _Value) throw(...); |
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} |
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#else |
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_CRTIMP __declspec(noreturn) void __cdecl longjmp(_In_ jmp_buf _Buf, _In_ int _Value); |
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#endif |
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#ifdef _MSC_VER |
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#pragma pack(pop) |
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#endif /* _MSC_VER */ |
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#endif /* _INC_SETJMP */ |
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