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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[27];
typedef struct {
unsigned long mask;
unsigned long addr;
} __psw_t;
typedef union {
double d;
float f;
} fpreg_t;
typedef struct {
unsigned fpc;
fpreg_t fprs[16];
} fpregset_t;
typedef struct
{
__psw_t psw;
unsigned long gregs[16];
unsigned aregs[16];
fpregset_t fpregs;
} mcontext_t;
#else
typedef struct {
unsigned long __regs1[18];
unsigned __regs2[18];
double __regs3[16];
} 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;
mcontext_t uc_mcontext;
sigset_t uc_sigmask;
} 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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