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1.1 root 1: /***
2: *setjmp.h - definitions/declarations for setjmp/longjmp routines
3: *
4: * Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
5: *
6: *Purpose:
7: * This file defines the machine-dependent buffer used by
8: * setjmp/longjmp to save and restore the program state, and
9: * declarations for those routines.
10: * [ANSI/System V]
11: *
1.1.1.2 ! root 12: * The setjmp() that will be used by those who include this file
! 13: * is _setjmpex, which is safe for use with try/except/finally,
! 14: * but is slow. See <crt/setjmpex.h> and <crt/setjmp.h> for more.
! 15: *
1.1 root 16: ****/
17:
18: #ifndef _INC_SETJMP
19:
1.1.1.2 ! root 20: #include <signal.h>
! 21:
1.1 root 22: #ifndef __cplusplus
23:
24:
25: /*
26: * Conditional macro definition for function calling type and variable type
27: * qualifiers.
28: */
29: #if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
30:
31: /*
32: * Definitions for MS C8-32 (386/486) compiler
33: */
34: #define _CRTAPI1 __cdecl
35: #define _CRTAPI2 __cdecl
36:
37: #elif ( _MSC_VER == 600 )
38:
39: /*
40: * Definitions for old MS C6-386 compiler
41: */
42: #define _CRTAPI1 _cdecl
43: #define _CRTAPI2 _cdecl
44: #define _M_IX86 300
45:
46: #else
47:
48: /*
49: * Other compilers (e.g., MIPS)
50: */
51: #define _CRTAPI1
52: #define _CRTAPI2
53:
54: #endif
55:
56: /*
1.1.1.2 ! root 57: * Posix programs use _setjmpex by default.
! 58: */
! 59:
! 60: #define setjmp _setjmpex
! 61:
! 62: /*
1.1 root 63: * Definitions specific to particular setjmp implementations.
64: */
65: #ifdef _M_IX86
66:
67: /*
68: * MS C8-32 or older MS C6-386 compilers
69: */
70: #define _JBLEN 8
1.1.1.2 ! root 71: #define _JBTYPE int
! 72:
! 73: /*
! 74: * Define jump buffer layout for x86 setjmp/longjmp
! 75: */
! 76:
! 77: typedef struct __JUMP_BUFFER {
! 78: unsigned long Ebp;
! 79: unsigned long Ebx;
! 80: unsigned long Edi;
! 81: unsigned long Esi;
! 82: unsigned long Esp;
! 83: unsigned long Eip;
! 84: unsigned long Registration;
! 85: unsigned long TryLevel;
! 86: } _JUMP_BUFFER;
1.1 root 87:
88: #else
89:
90: /*
91: * Assume compiler implements setjmp as a function
92: */
93:
94: #define _setjmp setjmp
95:
96: #endif
97:
98:
1.1.1.2 ! root 99: #if ( defined(_M_RX000) || defined(_MIPS_) )
! 100: /*
! 101: * All MIPS implementations need _JBLEN of 16
! 102: */
! 103: #define _JBLEN 16
! 104: #define _JBTYPE double
! 105:
! 106: /*
! 107: * Define jump buffer layout for MIPS setjmp/longjmp.
! 108: */
! 109:
! 110: typedef struct __JUMP_BUFFER {
! 111: unsigned long FltF20;
! 112: unsigned long FltF21;
! 113: unsigned long FltF22;
! 114: unsigned long FltF23;
! 115: unsigned long FltF24;
! 116: unsigned long FltF25;
! 117: unsigned long FltF26;
! 118: unsigned long FltF27;
! 119: unsigned long FltF28;
! 120: unsigned long FltF29;
! 121: unsigned long FltF30;
! 122: unsigned long FltF31;
! 123: unsigned long IntS0;
! 124: unsigned long IntS1;
! 125: unsigned long IntS2;
! 126: unsigned long IntS3;
! 127: unsigned long IntS4;
! 128: unsigned long IntS5;
! 129: unsigned long IntS6;
! 130: unsigned long IntS7;
! 131: unsigned long IntS8;
! 132: unsigned long Type;
! 133: unsigned long Fir;
! 134: } _JUMP_BUFFER;
! 135:
! 136: #endif
! 137:
! 138: #if defined(_ALPHA_)
! 139:
1.1 root 140: /*
1.1.1.2 ! root 141: * All ALPHA implementations need _JBLEN of 2
1.1 root 142: */
1.1.1.2 ! root 143:
! 144: #define _JBLEN 2
! 145: #define _JBTYPE double
1.1 root 146:
147: #endif
148:
149: /* define the buffer type for holding the state information */
150:
151: #ifndef _JMP_BUF_DEFINED
1.1.1.2 ! root 152: typedef _JBTYPE jmp_buf[_JBLEN];
1.1 root 153: #define _JMP_BUF_DEFINED
154: #endif
155:
156: #ifndef _SIGJMP_BUF_DEFINED
157: #define _SIGJMP_BUF_DEFINED
158: /*
159: * sigjmp buf is just a jmp_buf plus an int to say whether the sigmask
160: * is saved or not, and a sigmask_t for the mask if it is saved.
1.1.1.2 ! root 161: */
1.1 root 162:
1.1.1.2 ! root 163: typedef _JBTYPE sigjmp_buf[_JBLEN + 2];
1.1 root 164: #endif /* _SIGJMP_BUF_DEFINED */
165:
1.1.1.2 ! root 166: extern _JBTYPE * _CRTAPI1 _sigjmp_store_mask(sigjmp_buf, int);
! 167:
! 168: #define sigsetjmp(_env, _save) \
! 169: setjmp(_sigjmp_store_mask((_env), (_save)))
1.1 root 170:
171: /* function prototypes */
172:
173: int _CRTAPI1 setjmp(jmp_buf);
174: void _CRTAPI1 longjmp(jmp_buf, int);
175: void _CRTAPI1 siglongjmp(sigjmp_buf, int);
176:
177: /* function prototypes */
178:
179: #endif /* __cplusplus */
180:
181: #define _INC_SETJMP
182: #endif /* _INC_SETJMP */
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