siginfo.h 8.9 KB

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