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29 #ifndef _SYS_UCONTEXT_H_
30 #define _SYS_UCONTEXT_H_
32 #include <sys/cdefs.h>
33 #include <sys/_types.h>
35 #define __need_mcontext_t
36 #define __need_stack_t
37 #define __need_ucontext_t
38 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
39 #if defined(__ppc__) || defined(__ppc64__)
40 #define __need_mcontext64_t
41 #define __need_ucontext64_t
42 #endif /* __ppc__|| __ppc64__ */
43 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
44 #include <sys/_structs.h>
48 typedef __darwin_sigset_t sigset_t
;
52 #include <machine/types.h> /* user_addr_t, user_size_t */
54 /* kernel representation of struct ucontext64 for 64 bit processes */
55 struct user_ucontext64
{
57 sigset_t uc_sigmask
; /* signal mask */
58 struct user_sigaltstack uc_stack
; /* stack */
59 user_addr_t uc_link
; /* ucontext pointer */
60 user_size_t uc_mcsize
; /* mcontext size */
61 user_addr_t uc_mcontext64
; /* machine context */
64 typedef struct user_ucontext64 user_ucontext64_t
;
67 #endif /* _SYS_UCONTEXT_H_ */