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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define MINSIGSTKSZ 4096
#define SIGSTKSZ 10240
#endif
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
typedef unsigned long greg_t, gregset_t[48];
typedef struct {
double fpregs[32];
double fpscr;
} fpregset_t;
typedef struct {
#ifdef __GNUC__
__attribute__((__aligned__(16)))
#endif
unsigned vrregs[32][4];
struct {
#if __BIG_ENDIAN__
unsigned _pad[3], vscr_word;
#else
unsigned vscr_word, _pad[3];
#endif
} vscr;
unsigned vrsave, _pad[3];
} vrregset_t;
typedef struct sigcontext {
unsigned long _unused[4];
int signal;
int _pad0;
unsigned long handler;
unsigned long oldmask;
void *regs;
gregset_t gp_regs;
fpregset_t fp_regs;
vrregset_t *v_regs;
long vmx_reserve[34+34+32+1];
} mcontext_t;
#else
typedef struct {
long __regs[4+4+48+33+1+34+34+32+1];
} mcontext_t;
#endif
struct sigaltstack {
void *ss_sp;
int ss_flags;
size_t ss_size;
};
typedef struct __ucontext {
unsigned long uc_flags;
struct __ucontext *uc_link;
stack_t uc_stack;
sigset_t uc_sigmask;
mcontext_t uc_mcontext;
} ucontext_t;
#define SA_NOCLDSTOP 1U
#define SA_NOCLDWAIT 2U
#define SA_SIGINFO 4U
#define SA_ONSTACK 0x08000000U
#define SA_RESTART 0x10000000U
#define SA_NODEFER 0x40000000U
#define SA_RESETHAND 0x80000000U
#define SA_RESTORER 0x04000000U
#endif
#define SIGHUP 1
#define SIGINT 2
#define SIGQUIT 3
#define SIGILL 4
#define SIGTRAP 5
#define SIGABRT 6
#define SIGIOT SIGABRT
#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 SIGIO
#define SIGPWR 30
#define SIGSYS 31
#define SIGUNUSED SIGSYS
#define _NSIG 65
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