include/crt/setjmp.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER within this package.
   5  */
   6 #ifndef _INC_SETJMP
   7 #define _INC_SETJMP
   8
   9 #include <crtdefs.h>
  10
  11 #pragma pack(push,_CRT_PACKING)
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 #if (defined(_X86_) && !defined(__x86_64))
  18
  19 #define _JBLEN 16
  20 #define _JBTYPE int
  21
  22   typedef struct __JUMP_BUFFER {
  23     unsigned long Ebp;
  24     unsigned long Ebx;
  25     unsigned long Edi;
  26     unsigned long Esi;
  27     unsigned long Esp;
  28     unsigned long Eip;
  29     unsigned long Registration;
  30     unsigned long TryLevel;
  31     unsigned long Cookie;
  32     unsigned long UnwindFunc;
  33     unsigned long UnwindData[6];
  34   } _JUMP_BUFFER;
  35
  36 #elif defined(__ia64__)
  37
  38   typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 {
  39     __MINGW_EXTENSION __int64 LowPart;
  40     __MINGW_EXTENSION __int64 HighPart;
  41   } SETJMP_FLOAT128;
  42
  43 #define _JBLEN 33
  44   typedef SETJMP_FLOAT128 _JBTYPE;
  45
  46   typedef struct __JUMP_BUFFER {
  47
  48     unsigned long iAReserved[6];
  49
  50     unsigned long Registration;
  51     unsigned long TryLevel;
  52     unsigned long Cookie;
  53     unsigned long UnwindFunc;
  54
  55     unsigned long UnwindData[6];
  56
  57     SETJMP_FLOAT128 FltS0;
  58     SETJMP_FLOAT128 FltS1;
  59     SETJMP_FLOAT128 FltS2;
  60     SETJMP_FLOAT128 FltS3;
  61     SETJMP_FLOAT128 FltS4;
  62     SETJMP_FLOAT128 FltS5;
  63     SETJMP_FLOAT128 FltS6;
  64     SETJMP_FLOAT128 FltS7;
  65     SETJMP_FLOAT128 FltS8;
  66     SETJMP_FLOAT128 FltS9;
  67     SETJMP_FLOAT128 FltS10;
  68     SETJMP_FLOAT128 FltS11;
  69     SETJMP_FLOAT128 FltS12;
  70     SETJMP_FLOAT128 FltS13;
  71     SETJMP_FLOAT128 FltS14;
  72     SETJMP_FLOAT128 FltS15;
  73     SETJMP_FLOAT128 FltS16;
  74     SETJMP_FLOAT128 FltS17;
  75     SETJMP_FLOAT128 FltS18;
  76     SETJMP_FLOAT128 FltS19;
  77     __MINGW_EXTENSION __int64 FPSR;
  78     __MINGW_EXTENSION __int64 StIIP;
  79     __MINGW_EXTENSION __int64 BrS0;
  80     __MINGW_EXTENSION __int64 BrS1;
  81     __MINGW_EXTENSION __int64 BrS2;
  82     __MINGW_EXTENSION __int64 BrS3;
  83     __MINGW_EXTENSION __int64 BrS4;
  84     __MINGW_EXTENSION __int64 IntS0;
  85     __MINGW_EXTENSION __int64 IntS1;
  86     __MINGW_EXTENSION __int64 IntS2;
  87     __MINGW_EXTENSION __int64 IntS3;
  88     __MINGW_EXTENSION __int64 RsBSP;
  89     __MINGW_EXTENSION __int64 RsPFS;
  90     __MINGW_EXTENSION __int64 ApUNAT;
  91     __MINGW_EXTENSION __int64 ApLC;
  92     __MINGW_EXTENSION __int64 IntSp;
  93     __MINGW_EXTENSION __int64 IntNats;
  94     __MINGW_EXTENSION __int64 Preds;
  95
  96   } _JUMP_BUFFER;
  97
  98 #elif defined(__x86_64)
  99
 100   typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 {
 101     __MINGW_EXTENSION unsigned __int64 Part[2];
 102   } SETJMP_FLOAT128;
 103
 104 #define _JBLEN 16
 105   typedef SETJMP_FLOAT128 _JBTYPE;
 106
 107   typedef struct _JUMP_BUFFER {
 108     __MINGW_EXTENSION unsigned __int64 Frame;
 109     __MINGW_EXTENSION unsigned __int64 Rbx;
 110     __MINGW_EXTENSION unsigned __int64 Rsp;
 111     __MINGW_EXTENSION unsigned __int64 Rbp;
 112     __MINGW_EXTENSION unsigned __int64 Rsi;
 113     __MINGW_EXTENSION unsigned __int64 Rdi;
 114     __MINGW_EXTENSION unsigned __int64 R12;
 115     __MINGW_EXTENSION unsigned __int64 R13;
 116     __MINGW_EXTENSION unsigned __int64 R14;
 117     __MINGW_EXTENSION unsigned __int64 R15;
 118     __MINGW_EXTENSION unsigned __int64 Rip;
 119     __MINGW_EXTENSION unsigned __int64 Spare;
 120     SETJMP_FLOAT128 Xmm6;
 121     SETJMP_FLOAT128 Xmm7;
 122     SETJMP_FLOAT128 Xmm8;
 123     SETJMP_FLOAT128 Xmm9;
 124     SETJMP_FLOAT128 Xmm10;
 125     SETJMP_FLOAT128 Xmm11;
 126     SETJMP_FLOAT128 Xmm12;
 127     SETJMP_FLOAT128 Xmm13;
 128     SETJMP_FLOAT128 Xmm14;
 129     SETJMP_FLOAT128 Xmm15;
 130   } _JUMP_BUFFER;
 131
 132 #endif
 133
 134 #ifndef _JMP_BUF_DEFINED
 135   typedef _JBTYPE jmp_buf[_JBLEN];
 136 #define _JMP_BUF_DEFINED
 137 #endif
 138
 139 static inline __attribute__((always_inline)) void * mingw_getsp(void)
 140 {
 141     void *value;
 142 #if defined(__x86_64)
 143 #ifdef _MSC_VER
 144     __asm {mov value, rsp}
 145 #else
 146     __asm__ __volatile__("movq %%rsp, %[value]" : [value] "=r" (value) );
 147 #endif
 148 #elif defined(_X86_)
 149 #ifdef _MSC_VER
 150     __asm {mov value, esp}
 151 #else
 152     __asm__ __volatile__("movql %%esp, %[value]" : [value] "=r" (value) );
 153 #endif
 154 #else
 155     #error mingw_getsp unimplemented
 156 #endif
 157     return value;
 158 }
 159
 160 #ifdef USE_MINGW_SETJMP_TWO_ARGS
 161 #ifndef _INC_SETJMPEX
 162 #define setjmp(BUF) _setjmp((BUF),mingw_getsp())
 163   int __cdecl __MINGW_NOTHROW _setjmp(jmp_buf _Buf,void *_Ctx);
 164 #else
 165 #undef setjmp
 166 #define setjmp(BUF) _setjmpex((BUF),mingw_getsp())
 167 #define setjmpex(BUF) _setjmpex((BUF),mingw_getsp())
 168   int __cdecl __MINGW_NOTHROW _setjmpex(jmp_buf _Buf,void *_Ctx);
 169 #endif
 170 #else
 171 #ifndef _INC_SETJMPEX
 172 #define setjmp _setjmp
 173 #endif
 174   int __cdecl __MINGW_NOTHROW setjmp(jmp_buf _Buf);
 175 #endif
 176
 177   __declspec(noreturn) __MINGW_NOTHROW void __cdecl ms_longjmp(jmp_buf _Buf,int _Value)/* throw(...)*/;
 178   __declspec(noreturn) __MINGW_NOTHROW void __cdecl longjmp(jmp_buf _Buf,int _Value);
 179
 180 #ifdef __cplusplus
 181 }
 182 #endif
 183
 184 #pragma pack(pop)
 185 #endif