#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 2048

#define SIGSTKSZ 8192

#endif

#ifdef _GNU_SOURCE

#define REG_R8          0

#define REG_R9          1

#define REG_R10         2

#define REG_R11         3

#define REG_R12         4

#define REG_R13         5

#define REG_R14         6

#define REG_R15         7

#define REG_RDI         8

#define REG_RSI         9

#define REG_RBP         10

#define REG_RBX         11

#define REG_RDX         12

#define REG_RAX         13

#define REG_RCX         14

#define REG_RSP         15

#define REG_RIP         16

#define REG_EFL         17

#define REG_CSGSFS      18

#define REG_ERR         19

#define REG_TRAPNO      20

#define REG_OLDMASK     21

#define REG_CR2         22

#endif

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

typedef long long greg_t, gregset_t[23];

typedef struct _fpstate {

	unsigned short cwd, swd, ftw, fop;

	unsigned long long rip, rdp;

	unsigned mxcsr, mxcr_mask;

	struct {

		unsigned short significand[4], exponent, padding[3];

	} _st[8];

	struct {

		unsigned element[4];

	} _xmm[16];

	unsigned padding[24];

} *fpregset_t;

struct sigcontext {

	unsigned long r8, r9, r10, r11, r12, r13, r14, r15;

	unsigned long rdi, rsi, rbp, rbx, rdx, rax, rcx, rsp, rip, eflags;

	unsigned short cs, gs, fs, __pad0;

	unsigned long err, trapno, oldmask, cr2;

	struct _fpstate *fpstate;

	unsigned long __reserved1[8];

};

typedef struct {

	gregset_t gregs;

	fpregset_t fpregs;

	unsigned long long __reserved1[8];

} mcontext_t;

#else

typedef struct {

	unsigned long __space[32];

} 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;

	unsigned long __fpregs_mem[64];

} 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 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   29

#define SIGPWR    30

#define SIGSYS    31

#define SIGUNUSED SIGSYS

#define _NSIG 65