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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. */