1 #ifndef _SIGNAL_H 2 #define _SIGNAL_H 3 4 #ifdef __cplusplus 5 extern "C" { 6 #endif 7 8 #include <features.h> 9 10 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 11 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ 12 || defined(_BSD_SOURCE) 13 14 #ifdef _GNU_SOURCE 15 #define __ucontext ucontext 16 #endif 17 18 #define __NEED_size_t 19 #define __NEED_pid_t 20 #define __NEED_uid_t 21 #define __NEED_struct_timespec 22 #define __NEED_pthread_t 23 #define __NEED_pthread_attr_t 24 #define __NEED_time_t 25 #define __NEED_clock_t 26 #define __NEED_sigset_t 27 28 #include <bits/alltypes.h> 29 30 #define SIG_BLOCK 0 31 #define SIG_UNBLOCK 1 32 #define SIG_SETMASK 2 33 34 #define SI_ASYNCNL (-60) 35 #define SI_TKILL (-6) 36 #define SI_SIGIO (-5) 37 #define SI_ASYNCIO (-4) 38 #define SI_MESGQ (-3) 39 #define SI_TIMER (-2) 40 #define SI_QUEUE (-1) 41 #define SI_USER 0 42 #define SI_KERNEL 128 43 44 45 typedef struct sigaltstack stack_t; 46 47 #endif 48 49 #include <bits/signal.h> 50 51 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 52 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ 53 || defined(_BSD_SOURCE) 54 55 #define SIG_HOLD ((void (*)(int)) 2) 56 57 #define FPE_INTDIV 1 58 #define FPE_INTOVF 2 59 #define FPE_FLTDIV 3 60 #define FPE_FLTOVF 4 61 #define FPE_FLTUND 5 62 #define FPE_FLTRES 6 63 #define FPE_FLTINV 7 64 #define FPE_FLTSUB 8 65 66 #define ILL_ILLOPC 1 67 #define ILL_ILLOPN 2 68 #define ILL_ILLADR 3 69 #define ILL_ILLTRP 4 70 #define ILL_PRVOPC 5 71 #define ILL_PRVREG 6 72 #define ILL_COPROC 7 73 #define ILL_BADSTK 8 74 75 #define SEGV_MAPERR 1 76 #define SEGV_ACCERR 2 77 #define SEGV_BNDERR 3 78 #define SEGV_PKUERR 4 79 80 #define BUS_ADRALN 1 81 #define BUS_ADRERR 2 82 #define BUS_OBJERR 3 83 #define BUS_MCEERR_AR 4 84 #define BUS_MCEERR_AO 5 85 86 #define CLD_EXITED 1 87 #define CLD_KILLED 2 88 #define CLD_DUMPED 3 89 #define CLD_TRAPPED 4 90 #define CLD_STOPPED 5 91 #define CLD_CONTINUED 6 92 93 union sigval { 94 int sival_int; 95 void *sival_ptr; 96 }; 97 98 typedef struct { 99 #ifdef __SI_SWAP_ERRNO_CODE 100 int si_signo, si_code, si_errno; 101 #else 102 int si_signo, si_errno, si_code; 103 #endif 104 union { 105 char __pad[128 - 2*sizeof(int) - sizeof(long)]; 106 struct { 107 union { 108 struct { 109 pid_t si_pid; 110 uid_t si_uid; 111 } __piduid; 112 struct { 113 int si_timerid; 114 int si_overrun; 115 } __timer; 116 } __first; 117 union { 118 union sigval si_value; 119 struct { 120 int si_status; 121 clock_t si_utime, si_stime; 122 } __sigchld; 123 } __second; 124 } __si_common; 125 struct { 126 void *si_addr; 127 short si_addr_lsb; 128 union { 129 struct { 130 void *si_lower; 131 void *si_upper; 132 } __addr_bnd; 133 unsigned si_pkey; 134 } __first; 135 } __sigfault; 136 struct { 137 long si_band; 138 int si_fd; 139 } __sigpoll; 140 struct { 141 void *si_call_addr; 142 int si_syscall; 143 unsigned si_arch; 144 } __sigsys; 145 } __si_fields; 146 } siginfo_t; 147 #define si_pid __si_fields.__si_common.__first.__piduid.si_pid 148 #define si_uid __si_fields.__si_common.__first.__piduid.si_uid 149 #define si_status __si_fields.__si_common.__second.__sigchld.si_status 150 #define si_utime __si_fields.__si_common.__second.__sigchld.si_utime 151 #define si_stime __si_fields.__si_common.__second.__sigchld.si_stime 152 #define si_value __si_fields.__si_common.__second.si_value 153 #define si_addr __si_fields.__sigfault.si_addr 154 #define si_addr_lsb __si_fields.__sigfault.si_addr_lsb 155 #define si_lower __si_fields.__sigfault.__first.__addr_bnd.si_lower 156 #define si_upper __si_fields.__sigfault.__first.__addr_bnd.si_upper 157 #define si_pkey __si_fields.__sigfault.__first.si_pkey 158 #define si_band __si_fields.__sigpoll.si_band 159 #define si_fd __si_fields.__sigpoll.si_fd 160 #define si_timerid __si_fields.__si_common.__first.__timer.si_timerid 161 #define si_overrun __si_fields.__si_common.__first.__timer.si_overrun 162 #define si_ptr si_value.sival_ptr 163 #define si_int si_value.sival_int 164 #define si_call_addr __si_fields.__sigsys.si_call_addr 165 #define si_syscall __si_fields.__sigsys.si_syscall 166 #define si_arch __si_fields.__sigsys.si_arch 167 168 struct sigaction { 169 union { 170 void (*sa_handler)(int); 171 void (*sa_sigaction)(int, siginfo_t *, void *); 172 } __sa_handler; 173 sigset_t sa_mask; 174 int sa_flags; 175 void (*sa_restorer)(void); 176 }; 177 #define sa_handler __sa_handler.sa_handler 178 #define sa_sigaction __sa_handler.sa_sigaction 179 180 struct sigevent { 181 union sigval sigev_value; 182 int sigev_signo; 183 int sigev_notify; 184 void (*sigev_notify_function)(union sigval); 185 pthread_attr_t *sigev_notify_attributes; 186 char __pad[56-3*sizeof(long)]; 187 }; 188 189 #define SIGEV_SIGNAL 0 190 #define SIGEV_NONE 1 191 #define SIGEV_THREAD 2 192 193 int __libc_current_sigrtmin(void); 194 int __libc_current_sigrtmax(void); 195 196 #define SIGRTMIN (__libc_current_sigrtmin()) 197 #define SIGRTMAX (__libc_current_sigrtmax()) 198 199 #define MUSL_SIGNAL_NATIVE_REMOTE (SIGRTMIN + 0) 200 #define MUSL_SIGNAL_HOOK (SIGRTMIN + 1) 201 #define MUSL_SIGNAL_UNHOOK (SIGRTMIN + 2) 202 #define MUSL_SIGNAL_NATIVE_LOCAL (SIGRTMIN + 3) 203 #define MUSL_SIGNAL_JSHEAP (SIGRTMIN + 4) 204 #define MUSL_SIGNAL_JSHEAP_PRIV (SIGRTMIN + 5) 205 206 int kill(pid_t, int); 207 int sigemptyset(sigset_t *); 208 int sigfillset(sigset_t *); 209 int sigaddset(sigset_t *, int); 210 int sigdelset(sigset_t *, int); 211 int sigismember(const sigset_t *, int); 212 213 int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict); 214 int sigsuspend(const sigset_t *); 215 int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict); 216 int sigpending(sigset_t *); 217 int sigwait(const sigset_t *__restrict, int *__restrict); 218 int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict); 219 int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict); 220 int sigqueue(pid_t, int, union sigval); 221 222 int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict); 223 int pthread_kill(pthread_t, int); 224 225 void psiginfo(const siginfo_t *, const char *); 226 void psignal(int, const char *); 227 228 #endif 229 230 #if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE) 231 int killpg(pid_t, int); 232 int sigaltstack(const stack_t *__restrict, stack_t *__restrict); 233 int sighold(int); 234 int sigignore(int); 235 int siginterrupt(int, int); 236 int sigpause(int); 237 int sigrelse(int); 238 void (*sigset(int, void (*)(int)))(int); 239 #define TRAP_BRKPT 1 240 #define TRAP_TRACE 2 241 #define TRAP_BRANCH 3 242 #define TRAP_HWBKPT 4 243 #define TRAP_UNK 5 244 #define POLL_IN 1 245 #define POLL_OUT 2 246 #define POLL_MSG 3 247 #define POLL_ERR 4 248 #define POLL_PRI 5 249 #define POLL_HUP 6 250 #define SS_ONSTACK 1 251 #define SS_DISABLE 2 252 #define SS_AUTODISARM (1U << 31) 253 #define SS_FLAG_BITS SS_AUTODISARM 254 #endif 255 256 #if defined(_BSD_SOURCE) || defined(_GNU_SOURCE) 257 #define NSIG _NSIG 258 typedef void (*sig_t)(int); 259 #endif 260 261 #ifdef _GNU_SOURCE 262 typedef void (*sighandler_t)(int); 263 void (*bsd_signal(int, void (*)(int)))(int); 264 265 #define SA_NOMASK SA_NODEFER 266 #define SA_ONESHOT SA_RESETHAND 267 #endif 268 269 #define SIG_ERR ((void (*)(int))-1) 270 #define SIG_DFL ((void (*)(int)) 0) 271 #define SIG_IGN ((void (*)(int)) 1) 272 273 typedef int sig_atomic_t; 274 275 void (*signal(int, void (*)(int)))(int); 276 int raise(int); 277 278 #if _REDIR_TIME64 279 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 280 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ 281 || defined(_BSD_SOURCE) 282 __REDIR(sigtimedwait, __sigtimedwait_time64); 283 #endif 284 #endif 285 286 #ifdef __cplusplus 287 } 288 #endif 289 290 #endif 291