diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/siginfo.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/siginfo.h | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/siginfo.h b/sysdeps/unix/sysv/linux/bits/siginfo.h new file mode 100644 index 0000000000..42030abc4f --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/siginfo.h @@ -0,0 +1,257 @@ +/* siginfo_t, sigevent and constants. Linux version. + Copyright (C) 1997 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SIGNAL_H +# error "Never include this file directly. Use <signal.h> instead" +#endif + +#define SI_MAX_SIZE 128 +#define SI_PAD_SIZE ((SI_MAX_SIZE / sizeof (int)) - 3) + +typedef struct siginfo + { + 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 + { + unsigned int _timer1; + unsigned int _timer2; + } _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. */ + int si_status; /* Exit value or signal. */ + __clock_t si_utime; + __clock_t si_stime; + } _sigchld; + + /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */ + struct + { + void *si_addr; /* Faulting insn/memory ref. */ + } _sigfault; + + /* SIGPOLL. */ + struct + { + int si_band; /* Band event for SIGPOLL. */ + int si_fd; + } _sigpoll; + } _sifields; + } siginfo_t; + + +/* 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_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 + + +/* Values for `si_code'. Positive values are reserved for kernel-generated + signals. */ +enum +{ + SI_ASYNCIO = -4, /* 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, raise. */ +#define SI_USER SI_USER +}; + + +/* `si_code' values for SIGILL signal. */ +enum +{ + ILL_ILLOPC = 1, /* Illegal opcode. */ +#define ILL_ILLOPC ILL_ILLOPC + ILL_ILL_OPN, /* 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 +}; + + +/* Structure to transport application-defined values with signals. */ +#define SIGEV_MAX_SIZE 64 +#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE / sizeof (int)) - 3) + +typedef struct sigevent + { + sigval_t sigev_value; + int sigev_signo; + int sigev_notify; + + union + { + int _pad[SIGEV_PAD_SIZE]; + + struct + { + void (*_function) __P ((sigval_t)); /* Function to start. */ + void *_attribute; /* Really pthread_attr_t. */ + } _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 +}; |