|  | #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; | 
|  |  | 
|  | struct sigcontext { | 
|  | unsigned long oldmask[1]; | 
|  | struct { | 
|  | struct { | 
|  | __psw_t psw; | 
|  | unsigned long gprs[16]; | 
|  | unsigned acrs[16]; | 
|  | } regs; | 
|  | struct { | 
|  | unsigned fpc; | 
|  | double fprs[16]; | 
|  | } fpregs; | 
|  | } *sregs; | 
|  | }; | 
|  |  | 
|  | #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 |