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/* siginfo_t, sigevent and constants. Linux x86-64 version. Copyright (C) 2012 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. / #if !defined _SIGNAL_H && !defined __need_siginfo_t \ && !defined __need_sigevent_t # error "Never include this file directly. Use <signal.h> instead" #endif #include <bits/wordsize.h> #if (!defined __have_sigval_t \ && (defined _SIGNAL_H \|\| defined __need_siginfo_t \ \|\| defined __need_sigevent_t)) # define __have_sigval_t 1 / Type for data associated with a signal. / typedef union sigval { int sival_int; void sival_ptr; } sigval_t; #endif #if (!defined __have_siginfo_t \ && (defined _SIGNAL_H \|\| defined __need_siginfo_t)) # define __have_siginfo_t 1 # define __SI_MAX_SIZE 128 # if __WORDSIZE == 64 # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 4) # else # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3) # endif # if defined __x86_64__ && __WORDSIZE == 32 /* si_utime and si_stime must be 4 byte aligned for x32 to match the kernel. We align siginfo_t to 8 bytes so that si_utime and si_stime are actually aligned to 8 bytes since their offsets are multiple of 8 bytes. / typedef __clock_t __attribute__ ((__aligned__ (4))) __sigchld_clock_t; # define __SI_ALIGNMENT __attribute__ ((__aligned__ (8))) # else typedef __clock_t __sigchld_clock_t; # define __SI_ALIGNMENT # endif typedef struct { int si_signo; / Signal number. / int si_errno; / If non-zero, an errno value associated with this signal, as defined in <errno.h>. / int si_code; / Signal code. / union { int _pad[__SI_PAD_SIZE]; / kill(). / struct { __pid_t si_pid; / Sending process ID. / __uid_t si_uid; / Real user ID of sending process. / } _kill; / POSIX.1b timers. / struct { int si_tid; / Timer ID. / int si_overrun; / Overrun count. / sigval_t si_sigval; / Signal value. / } _timer; / POSIX.1b signals. / struct { __pid_t si_pid; / Sending process ID. / __uid_t si_uid; / Real user ID of sending process. / sigval_t si_sigval; / Signal value. / } _rt; / SIGCHLD. / struct { __pid_t si_pid; / Which child. / __uid_t si_uid; / Real user ID of sending process. / int si_status; / Exit value or signal. / __sigchld_clock_t si_utime; __sigchld_clock_t si_stime; } _sigchld; / SIGILL, SIGFPE, SIGSEGV, SIGBUS. / struct { void si_addr; /* Faulting insn/memory ref. / } _sigfault; / SIGPOLL. / struct { long int si_band; / Band event for SIGPOLL. / int si_fd; } _sigpoll; / SIGSYS. / struct { void _call_addr; /* Calling user insn. / int _syscall; / Triggering system call number. / unsigned int _arch; / AUDIT_ARCH_* of syscall. / } _sigsys; } _sifields; } siginfo_t __SI_ALIGNMENT; / X/Open requires some more fields with fixed names. / # define si_pid _sifields._kill.si_pid # define si_uid _sifields._kill.si_uid # define si_timerid _sifields._timer.si_tid # define si_overrun _sifields._timer.si_overrun # define si_status _sifields._sigchld.si_status # define si_utime _sifields._sigchld.si_utime # define si_stime _sifields._sigchld.si_stime # define si_value _sifields._rt.si_sigval # define si_int _sifields._rt.si_sigval.sival_int # define si_ptr _sifields._rt.si_sigval.sival_ptr # define si_addr _sifields._sigfault.si_addr # define si_band _sifields._sigpoll.si_band # define si_fd _sifields._sigpoll.si_fd # define si_call_addr _sifields._sigsys._call_addr # define si_syscall _sifields._sigsys._syscall # define si_arch _sifields._sigsys._arch / Values for `si_code'. Positive values are reserved for kernel-generated signals. / enum { SI_ASYNCNL = -60, / Sent by asynch name lookup completion. / # define SI_ASYNCNL SI_ASYNCNL SI_TKILL = -6, / Sent by tkill. / # define SI_TKILL SI_TKILL SI_SIGIO, / Sent by queued SIGIO. / # define SI_SIGIO SI_SIGIO SI_ASYNCIO, / Sent by AIO completion. / # define SI_ASYNCIO SI_ASYNCIO SI_MESGQ, / Sent by real time mesq state change. / # define SI_MESGQ SI_MESGQ SI_TIMER, / Sent by timer expiration. / # define SI_TIMER SI_TIMER SI_QUEUE, / Sent by sigqueue. / # define SI_QUEUE SI_QUEUE SI_USER, / Sent by kill, sigsend. / # define SI_USER SI_USER SI_KERNEL = 0x80 / Send by kernel. / #define SI_KERNEL SI_KERNEL }; / `si_code' values for SIGILL signal. / enum { ILL_ILLOPC = 1, / Illegal opcode. / # define ILL_ILLOPC ILL_ILLOPC ILL_ILLOPN, / Illegal operand. / # define ILL_ILLOPN ILL_ILLOPN ILL_ILLADR, / Illegal addressing mode. / # define ILL_ILLADR ILL_ILLADR ILL_ILLTRP, / Illegal trap. / # define ILL_ILLTRP ILL_ILLTRP ILL_PRVOPC, / Privileged opcode. / # define ILL_PRVOPC ILL_PRVOPC ILL_PRVREG, / Privileged register. / # define ILL_PRVREG ILL_PRVREG ILL_COPROC, / Coprocessor error. / # define ILL_COPROC ILL_COPROC ILL_BADSTK / Internal stack error. / # define ILL_BADSTK ILL_BADSTK }; / `si_code' values for SIGFPE signal. / enum { FPE_INTDIV = 1, / Integer divide by zero. / # define FPE_INTDIV FPE_INTDIV FPE_INTOVF, / Integer overflow. / # define FPE_INTOVF FPE_INTOVF FPE_FLTDIV, / Floating point divide by zero. / # define FPE_FLTDIV FPE_FLTDIV FPE_FLTOVF, / Floating point overflow. / # define FPE_FLTOVF FPE_FLTOVF FPE_FLTUND, / Floating point underflow. / # define FPE_FLTUND FPE_FLTUND FPE_FLTRES, / Floating point inexact result. / # define FPE_FLTRES FPE_FLTRES FPE_FLTINV, / Floating point invalid operation. / # define FPE_FLTINV FPE_FLTINV FPE_FLTSUB / Subscript out of range. / # define FPE_FLTSUB FPE_FLTSUB }; / `si_code' values for SIGSEGV signal. / enum { SEGV_MAPERR = 1, / Address not mapped to object. / # define SEGV_MAPERR SEGV_MAPERR SEGV_ACCERR / Invalid permissions for mapped object. / # define SEGV_ACCERR SEGV_ACCERR }; / `si_code' values for SIGBUS signal. / enum { BUS_ADRALN = 1, / Invalid address alignment. / # define BUS_ADRALN BUS_ADRALN BUS_ADRERR, / Non-existant physical address. / # define BUS_ADRERR BUS_ADRERR BUS_OBJERR / Object specific hardware error. / # define BUS_OBJERR BUS_OBJERR }; / `si_code' values for SIGTRAP signal. / enum { TRAP_BRKPT = 1, / Process breakpoint. / # define TRAP_BRKPT TRAP_BRKPT TRAP_TRACE / Process trace trap. / # define TRAP_TRACE TRAP_TRACE }; / `si_code' values for SIGCHLD signal. / enum { CLD_EXITED = 1, / Child has exited. / # define CLD_EXITED CLD_EXITED CLD_KILLED, / Child was killed. / # define CLD_KILLED CLD_KILLED CLD_DUMPED, / Child terminated abnormally. / # define CLD_DUMPED CLD_DUMPED CLD_TRAPPED, / Traced child has trapped. / # define CLD_TRAPPED CLD_TRAPPED CLD_STOPPED, / Child has stopped. / # define CLD_STOPPED CLD_STOPPED CLD_CONTINUED / Stopped child has continued. / # define CLD_CONTINUED CLD_CONTINUED }; / `si_code' values for SIGPOLL signal. / enum { POLL_IN = 1, / Data input available. / # define POLL_IN POLL_IN POLL_OUT, / Output buffers available. / # define POLL_OUT POLL_OUT POLL_MSG, / Input message available. / # define POLL_MSG POLL_MSG POLL_ERR, / I/O error. / # define POLL_ERR POLL_ERR POLL_PRI, / High priority input available. / # define POLL_PRI POLL_PRI POLL_HUP / Device disconnected. / # define POLL_HUP POLL_HUP }; # undef __need_siginfo_t #endif / !have siginfo_t && (have _SIGNAL_H \|\| need siginfo_t). / #if (defined _SIGNAL_H \|\| defined __need_sigevent_t) \ && !defined __have_sigevent_t # define __have_sigevent_t 1 / Structure to transport application-defined values with signals. / # define __SIGEV_MAX_SIZE 64 # if __WORDSIZE == 64 # define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 4) # else # define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 3) # endif / Forward declaration. / # ifndef __have_pthread_attr_t typedef union pthread_attr_t pthread_attr_t; # define __have_pthread_attr_t 1 # endif typedef struct sigevent { sigval_t sigev_value; int sigev_signo; int sigev_notify; union { int _pad[__SIGEV_PAD_SIZE]; / When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the thread to receive the signal. / __pid_t _tid; struct { void (_function) (sigval_t); /* Function to start. / pthread_attr_t _attribute; /* Thread attributes. / } _sigev_thread; } _sigev_un; } sigevent_t; / POSIX names to access some of the members. / # define sigev_notify_function _sigev_un._sigev_thread._function # define sigev_notify_attributes _sigev_un._sigev_thread._attribute / `sigev_notify' values. / enum { SIGEV_SIGNAL = 0, / Notify via signal. / # define SIGEV_SIGNAL SIGEV_SIGNAL SIGEV_NONE, / Other notification: meaningless. / # define SIGEV_NONE SIGEV_NONE SIGEV_THREAD, / Deliver via thread creation. / # define SIGEV_THREAD SIGEV_THREAD SIGEV_THREAD_ID = 4 / Send signal to specific thread. / #define SIGEV_THREAD_ID SIGEV_THREAD_ID }; #endif / have _SIGNAL_H. */

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