diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86/bits')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/bits/siginfo.h | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/bits/siginfo.h b/sysdeps/unix/sysv/linux/x86/bits/siginfo.h new file mode 100644 index 0000000000..2e05e65281 --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/bits/siginfo.h @@ -0,0 +1,330 @@ +/* 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; + } _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 + + +/* 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. */ |