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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
struct _fpstate {
unsigned long cw, sw, tag, ipoff, cssel, dataoff, datasel;
struct {
unsigned short significand[4], exponent;
} _st[8];
unsigned long status;
};
struct sigcontext {
unsigned short gs, __gsh, fs, __fsh, es, __esh, ds, __dsh;
unsigned long edi, esi, ebp, esp, ebx, edx, ecx, eax;
unsigned long trapno, err, eip;
unsigned short cs, __csh;
unsigned long eflags, esp_at_signal;
unsigned short ss, __ssh;
struct _fpstate *fpstate;
unsigned long oldmask, cr2;
};
typedef struct {
unsigned gregs[19];
struct _fpstate *fpregs;
unsigned long oldmask, cr2;
} mcontext_t;
#else
typedef struct {
unsigned __space[22];
} mcontext_t;
#endif
typedef struct __ucontext {
unsigned long uc_flags;
struct __ucontext *uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
sigset_t uc_sigmask;
unsigned long __fpregs_mem[28];
} ucontext_t;
#define SA_NOCLDSTOP 1
#define SA_NOCLDWAIT 2
#define SA_SIGINFO 4
#define SA_ONSTACK 0x08000000
#define SA_RESTART 0x10000000
#define SA_NODEFER 0x40000000
#define SA_RESETHAND 0x80000000
#define SA_RESTORER 0x04000000
#endif
#define SIGHUP 1
#define SIGINT 2
#define SIGQUIT 3
#define SIGILL 4
#define SIGTRAP 5
#define SIGABRT 6
#define SIGBUS 7
#define SIGFPE 8
#define SIGKILL 9
#define SIGUSR1 10
#define SIGSEGV 11
#define SIGUSR2 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGTERM 15
#define SIGSTKFLT 16
#define SIGCHLD 17
#define SIGCONT 18
#define SIGSTOP 19
#define SIGTSTP 20
#define SIGTTIN 21
#define SIGTTOU 22
#define SIGURG 23
#define SIGXCPU 24
#define SIGXFSZ 25
#define SIGVTALRM 26
#define SIGPROF 27
#define SIGWINCH 28
#define SIGIO 29
#define SIGPOLL 29
#define SIGPWR 30
#define SIGSYS 31
#define SIGUNUSED SIGSYS
#define _NSIG 65
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