1 /* siginfo_t, sigevent and constants. Linux/SPARC version. 2 Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #if !defined _SIGNAL_H && !defined __need_siginfo_t \ 19 && !defined __need_sigevent_t 20 # error "Never include this file directly. Use <signal.h> instead" 21 #endif 22 23 #if (!defined __have_sigval_t \ 24 && (defined _SIGNAL_H || defined __need_siginfo_t \ 25 || defined __need_sigevent_t)) 26 # define __have_sigval_t 1 27 28 /* Type for data associated with a signal. */ 29 typedef union sigval 30 { 31 int sival_int; 32 void *sival_ptr; 33 } sigval_t; 34 #endif 35 36 #if (!defined __have_siginfo_t \ 37 && (defined _SIGNAL_H || defined __need_siginfo_t)) 38 # define __have_siginfo_t 1 39 40 # define __SI_MAX_SIZE 128 41 # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3) 42 43 typedef struct siginfo 44 { 45 int si_signo; /* Signal number. */ 46 int si_errno; /* If non-zero, an errno value associated with 47 this signal, as defined in <errno.h>. */ 48 int si_code; /* Signal code. */ 49 50 union 51 { 52 int _pad[__SI_PAD_SIZE]; 53 54 /* kill(). */ 55 struct 56 { 57 __pid_t si_pid; /* Sending process ID. */ 58 __uid_t si_uid; /* Real user ID of sending process. */ 59 } _kill; 60 61 /* POSIX.1b timers. */ 62 struct 63 { 64 int si_tid; /* Timer ID. */ 65 int si_overrun; /* Overrun count. */ 66 sigval_t si_sigval; /* Signal value. */ 67 } _timer; 68 69 /* POSIX.1b signals. */ 70 struct 71 { 72 __pid_t si_pid; /* Sending process ID. */ 73 __uid_t si_uid; /* Real user ID of sending process. */ 74 sigval_t si_sigval; /* Signal value. */ 75 } _rt; 76 77 /* SIGCHLD. */ 78 struct 79 { 80 __pid_t si_pid; /* Which child. */ 81 __uid_t si_uid; /* Real user ID of sending process. */ 82 int si_status; /* Exit value or signal. */ 83 __clock_t si_utime; 84 __clock_t si_stime; 85 } _sigchld; 86 87 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */ 88 struct 89 { 90 void *si_addr; /* Faulting insn/memory ref. */ 91 int si_trapno; 92 } _sigfault; 93 94 /* SIGPOLL. */ 95 struct 96 { 97 int si_band; /* Band event for SIGPOLL. */ 98 int si_fd; 99 } _sigpoll; 100 101 /* SIGSYS. */ 102 struct 103 { 104 void *_call_addr; /* Calling user insn. */ 105 int _syscall; /* Triggering system call number. */ 106 unsigned int _arch; /* AUDIT_ARCH_* of syscall. */ 107 } _sigsys; 108 } _sifields; 109 } siginfo_t; 110 111 112 /* X/Open requires some more fields with fixed names. */ 113 # define si_pid _sifields._kill.si_pid 114 # define si_uid _sifields._kill.si_uid 115 # define si_timerid _sifields._timer.si_tid 116 # define si_overrun _sifields._timer.si_overrun 117 # define si_status _sifields._sigchld.si_status 118 # define si_utime _sifields._sigchld.si_utime 119 # define si_stime _sifields._sigchld.si_stime 120 # define si_value _sifields._rt.si_sigval 121 # define si_int _sifields._rt.si_sigval.sival_int 122 # define si_ptr _sifields._rt.si_sigval.sival_ptr 123 # define si_addr _sifields._sigfault.si_addr 124 # define si_trapno _sifields._sigfault.si_trapno 125 # define si_band _sifields._sigpoll.si_band 126 # define si_fd _sifields._sigpoll.si_fd 127 # define si_call_addr _sifields._sigsys._call_addr 128 # define si_syscall _sifields._sigsys._syscall 129 # define si_arch _sifields._sigsys._arch 130 131 132 /* Values for `si_code'. Positive values are reserved for kernel-generated 133 signals. */ 134 enum 135 { 136 SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */ 137 # define SI_ASYNCNL SI_ASYNCNL 138 SI_TKILL = -6, /* Sent by tkill. */ 139 # define SI_TKILL SI_TKILL 140 SI_SIGIO, /* Sent by queued SIGIO. */ 141 # define SI_SIGIO SI_SIGIO 142 SI_ASYNCIO, /* Sent by AIO completion. */ 143 # define SI_ASYNCIO SI_ASYNCIO 144 SI_MESGQ, /* Sent by real time mesq state change. */ 145 # define SI_MESGQ SI_MESGQ 146 SI_TIMER, /* Sent by timer expiration. */ 147 # define SI_TIMER SI_TIMER 148 SI_QUEUE, /* Sent by sigqueue. */ 149 # define SI_QUEUE SI_QUEUE 150 SI_USER, /* Sent by kill, sigsend, raise. */ 151 # define SI_USER SI_USER 152 SI_KERNEL = 0x80 /* Send by kernel. */ 153 #define SI_KERNEL SI_KERNEL 154 }; 155 156 157 /* `si_code' values for SIGILL signal. */ 158 enum 159 { 160 ILL_ILLOPC = 1, /* Illegal opcode. */ 161 # define ILL_ILLOPC ILL_ILLOPC 162 ILL_ILLOPN, /* Illegal operand. */ 163 # define ILL_ILLOPN ILL_ILLOPN 164 ILL_ILLADR, /* Illegal addressing mode. */ 165 # define ILL_ILLADR ILL_ILLADR 166 ILL_ILLTRP, /* Illegal trap. */ 167 # define ILL_ILLTRP ILL_ILLTRP 168 ILL_PRVOPC, /* Privileged opcode. */ 169 # define ILL_PRVOPC ILL_PRVOPC 170 ILL_PRVREG, /* Privileged register. */ 171 # define ILL_PRVREG ILL_PRVREG 172 ILL_COPROC, /* Coprocessor error. */ 173 # define ILL_COPROC ILL_COPROC 174 ILL_BADSTK /* Internal stack error. */ 175 # define ILL_BADSTK ILL_BADSTK 176 }; 177 178 /* `si_code' values for SIGFPE signal. */ 179 enum 180 { 181 FPE_INTDIV = 1, /* Integer divide by zero. */ 182 # define FPE_INTDIV FPE_INTDIV 183 FPE_INTOVF, /* Integer overflow. */ 184 # define FPE_INTOVF FPE_INTOVF 185 FPE_FLTDIV, /* Floating point divide by zero. */ 186 # define FPE_FLTDIV FPE_FLTDIV 187 FPE_FLTOVF, /* Floating point overflow. */ 188 # define FPE_FLTOVF FPE_FLTOVF 189 FPE_FLTUND, /* Floating point underflow. */ 190 # define FPE_FLTUND FPE_FLTUND 191 FPE_FLTRES, /* Floating point inexact result. */ 192 # define FPE_FLTRES FPE_FLTRES 193 FPE_FLTINV, /* Floating point invalid operation. */ 194 # define FPE_FLTINV FPE_FLTINV 195 FPE_FLTSUB /* Subscript out of range. */ 196 # define FPE_FLTSUB FPE_FLTSUB 197 }; 198 199 /* `si_code' values for SIGSEGV signal. */ 200 enum 201 { 202 SEGV_MAPERR = 1, /* Address not mapped to object. */ 203 # define SEGV_MAPERR SEGV_MAPERR 204 SEGV_ACCERR /* Invalid permissions for mapped object. */ 205 # define SEGV_ACCERR SEGV_ACCERR 206 }; 207 208 /* `si_code' values for SIGBUS signal. */ 209 enum 210 { 211 BUS_ADRALN = 1, /* Invalid address alignment. */ 212 # define BUS_ADRALN BUS_ADRALN 213 BUS_ADRERR, /* Non-existant physical address. */ 214 # define BUS_ADRERR BUS_ADRERR 215 BUS_OBJERR /* Object specific hardware error. */ 216 # define BUS_OBJERR BUS_OBJERR 217 }; 218 219 /* `si_code' values for SIGTRAP signal. */ 220 enum 221 { 222 TRAP_BRKPT = 1, /* Process breakpoint. */ 223 # define TRAP_BRKPT TRAP_BRKPT 224 TRAP_TRACE /* Process trace trap. */ 225 # define TRAP_TRACE TRAP_TRACE 226 }; 227 228 /* `si_code' values for SIGCHLD signal. */ 229 enum 230 { 231 CLD_EXITED = 1, /* Child has exited. */ 232 # define CLD_EXITED CLD_EXITED 233 CLD_KILLED, /* Child was killed. */ 234 # define CLD_KILLED CLD_KILLED 235 CLD_DUMPED, /* Child terminated abnormally. */ 236 # define CLD_DUMPED CLD_DUMPED 237 CLD_TRAPPED, /* Traced child has trapped. */ 238 # define CLD_TRAPPED CLD_TRAPPED 239 CLD_STOPPED, /* Child has stopped. */ 240 # define CLD_STOPPED CLD_STOPPED 241 CLD_CONTINUED /* Stopped child has continued. */ 242 # define CLD_CONTINUED CLD_CONTINUED 243 }; 244 245 /* `si_code' values for SIGPOLL signal. */ 246 enum 247 { 248 POLL_IN = 1, /* Data input available. */ 249 # define POLL_IN POLL_IN 250 POLL_OUT, /* Output buffers available. */ 251 # define POLL_OUT POLL_OUT 252 POLL_MSG, /* Input message available. */ 253 # define POLL_MSG POLL_MSG 254 POLL_ERR, /* I/O error. */ 255 # define POLL_ERR POLL_ERR 256 POLL_PRI, /* High priority input available. */ 257 # define POLL_PRI POLL_PRI 258 POLL_HUP /* Device disconnected. */ 259 # define POLL_HUP POLL_HUP 260 }; 261 262 /* `si_code' values for SIGEMT signal. */ 263 enum 264 { 265 EMT_TAGOVF = 1 /* Tag overflow. */ 266 # define EMT_TAGOVF EMT_TAGOVF 267 }; 268 269 # undef __need_siginfo_t 270 #endif /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t). */ 271 272 273 #if (defined _SIGNAL_H || defined __need_sigevent_t) \ 274 && !defined __have_sigevent_t 275 # define __have_sigevent_t 1 276 277 /* Structure to transport application-defined values with signals. */ 278 # define __SIGEV_MAX_SIZE 64 279 # define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 3) 280 281 typedef struct sigevent 282 { 283 sigval_t sigev_value; 284 int sigev_signo; 285 int sigev_notify; 286 287 union 288 { 289 int _pad[__SIGEV_PAD_SIZE]; 290 291 /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the 292 thread to receive the signal. */ 293 __pid_t _tid; 294 295 struct 296 { 297 void (*_function) (sigval_t); /* Function to start. */ 298 void *_attribute; /* Really pthread_attr_t. */ 299 } _sigev_thread; 300 } _sigev_un; 301 } sigevent_t; 302 303 /* POSIX names to access some of the members. */ 304 # define sigev_notify_function _sigev_un._sigev_thread._function 305 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute 306 307 /* `sigev_notify' values. */ 308 enum 309 { 310 SIGEV_SIGNAL = 0, /* Notify via signal. */ 311 # define SIGEV_SIGNAL SIGEV_SIGNAL 312 SIGEV_NONE, /* Other notification: meaningless. */ 313 # define SIGEV_NONE SIGEV_NONE 314 SIGEV_THREAD, /* Deliver via thread creation. */ 315 # define SIGEV_THREAD SIGEV_THREAD 316 317 SIGEV_THREAD_ID = 4 /* Send signal to specific thread. */ 318 #define SIGEV_THREAD_ID SIGEV_THREAD_ID 319 }; 320 321 #endif /* have _SIGNAL_H. */ 322