source: azure_iot_hub/trunk/musl-1.1.18/include/bits/signal.h@ 389

#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

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
typedef int greg_t, gregset_t[16];
typedef int freg_t, fpregset_t[16];
typedef struct sigcontext {
        unsigned long oldmask;
        unsigned long sc_regs[16];
        unsigned long sc_pc, sc_pr, sc_sr;
        unsigned long sc_gbr, sc_mach, sc_macl;
        unsigned long sc_fpregs[16];
        unsigned long sc_xfpregs[16];
        unsigned int sc_fpscr, sc_fpul, sc_ownedfp;
} mcontext_t;
#else
typedef struct {
        unsigned long __regs[58];
} 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  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