55 unsigned long __sigbits[4];
56 } sigset_t;
57 #endif /* _SIGSET_T */
58
59 #ifndef _STACK_T
60 #define _STACK_T
61 typedef struct {
62 void *ss_sp;
63 size_t ss_size;
64 int ss_flags;
65 } stack_t;
66 #endif /* _STACK_T */
67 #endif /* defined(_XPG4_2) && !defined(__EXTENSIONS__) */
68
69 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
70 typedef struct ucontext ucontext_t;
71 #else
72 typedef struct __ucontext ucontext_t;
73 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
74
75 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
76 struct ucontext {
77 #else
78 struct __ucontext {
79 #endif
80 unsigned long uc_flags;
81 ucontext_t *uc_link;
82 sigset_t uc_sigmask;
83 stack_t uc_stack;
84 mcontext_t uc_mcontext;
85 long uc_filler[5]; /* see ABI spec for Intel386 */
86 };
87
88 #if defined(_SYSCALL32)
89
90 /* Kernel view of user ILP32 ucontext structure */
91
92 typedef struct ucontext32 {
93 uint32_t uc_flags;
94 caddr32_t uc_link;
95 sigset_t uc_sigmask;
96 stack32_t uc_stack;
97 mcontext32_t uc_mcontext;
98 int32_t uc_filler[5];
99 } ucontext32_t;
100
101 #if defined(_KERNEL)
102 extern void ucontext_nto32(const ucontext_t *src, ucontext32_t *dest);
103 extern void ucontext_32ton(const ucontext32_t *src, ucontext_t *dest);
104 #endif
105
106 #endif /* _SYSCALL32 */
107
108 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
109 #define GETCONTEXT 0
110 #define SETCONTEXT 1
111 #define GETUSTACK 2
112 #define SETUSTACK 3
113
114 /*
115 * values for uc_flags
116 * these are implementation dependent flags, that should be hidden
117 * from the user interface, defining which elements of ucontext
118 * are valid, and should be restored on call to setcontext
119 */
120
121 #define UC_SIGMASK 0x01
122 #define UC_STACK 0x02
123 #define UC_CPU 0x04
124 #define UC_MAU 0x08
125 #define UC_FPU UC_MAU
126
127 #define UC_MCONTEXT (UC_CPU|UC_FPU)
128
129 /*
130 * UC_ALL specifies the default context
131 */
132
133 #define UC_ALL (UC_SIGMASK|UC_STACK|UC_MCONTEXT)
134 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
135
136 #ifdef _KERNEL
137 void savecontext(ucontext_t *, const k_sigset_t *);
138 void restorecontext(ucontext_t *);
139
140 #ifdef _SYSCALL32
141 extern void savecontext32(ucontext32_t *, const k_sigset_t *);
142 #endif
143 #endif
144
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55 unsigned long __sigbits[4];
56 } sigset_t;
57 #endif /* _SIGSET_T */
58
59 #ifndef _STACK_T
60 #define _STACK_T
61 typedef struct {
62 void *ss_sp;
63 size_t ss_size;
64 int ss_flags;
65 } stack_t;
66 #endif /* _STACK_T */
67 #endif /* defined(_XPG4_2) && !defined(__EXTENSIONS__) */
68
69 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
70 typedef struct ucontext ucontext_t;
71 #else
72 typedef struct __ucontext ucontext_t;
73 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
74
75 #define XRS_ID 0x00737278 /* the string "xrs" */
76
77 typedef struct {
78 unsigned long xrs_id;
79 caddr_t xrs_ptr;
80 } xrs_t;
81
82 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
83 struct ucontext {
84 #else
85 struct __ucontext {
86 #endif
87 unsigned long uc_flags;
88 ucontext_t *uc_link;
89 sigset_t uc_sigmask;
90 stack_t uc_stack;
91 mcontext_t uc_mcontext;
92 xrs_t uc_xrs;
93 long uc_filler[3]; /* see ABI spec for Intel386 */
94 };
95
96 #if defined(_SYSCALL32)
97
98 typedef struct {
99 uint32_t xrs_id;
100 caddr32_t xrs_ptr;
101 } xrs32_t;
102
103 /* Kernel view of user ILP32 ucontext structure */
104
105 typedef struct ucontext32 {
106 uint32_t uc_flags;
107 caddr32_t uc_link;
108 sigset_t uc_sigmask;
109 stack32_t uc_stack;
110 mcontext32_t uc_mcontext;
111 xrs32_t uc_xrs;
112 int32_t uc_filler[3];
113 } ucontext32_t;
114
115 #if defined(_KERNEL)
116 extern void ucontext_nto32(const ucontext_t *src, ucontext32_t *dest);
117 extern void ucontext_32ton(const ucontext32_t *src, ucontext_t *dest);
118 #endif
119
120 #endif /* _SYSCALL32 */
121
122 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
123 #define GETCONTEXT 0
124 #define SETCONTEXT 1
125 #define GETUSTACK 2
126 #define SETUSTACK 3
127
128 /*
129 * values for uc_flags
130 * these are implementation dependent flags, that should be hidden
131 * from the user interface, defining which elements of ucontext
132 * are valid, and should be restored on call to setcontext
133 */
134
135 #define UC_SIGMASK 0x01
136 #define UC_STACK 0x02
137 #define UC_CPU 0x04
138 #define UC_MAU 0x08
139 #define UC_XREGS 0x10
140 #define UC_FPU UC_MAU
141
142 #define UC_MCONTEXT (UC_CPU|UC_FPU)
143
144 /*
145 * UC_ALL specifies the default context
146 */
147
148 #define UC_ALL (UC_SIGMASK|UC_STACK|UC_MCONTEXT)
149 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
150
151 #ifdef _KERNEL
152 void savecontext(ucontext_t *, const k_sigset_t *);
153 void restorecontext(ucontext_t *);
154
155 #ifdef _SYSCALL32
156 extern void savecontext32(ucontext32_t *, const k_sigset_t *);
157 #endif
158 #endif
159
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