mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
288 lines
8.0 KiB
C
288 lines
8.0 KiB
C
#ifndef _ASM_GENERIC_SIGINFO_H
|
|
#define _ASM_GENERIC_SIGINFO_H
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/types.h>
|
|
|
|
typedef union sigval {
|
|
int sival_int;
|
|
void __user *sival_ptr;
|
|
} sigval_t;
|
|
|
|
/*
|
|
* This is the size (including padding) of the part of the
|
|
* struct siginfo that is before the union.
|
|
*/
|
|
#ifndef __ARCH_SI_PREAMBLE_SIZE
|
|
#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
|
|
#endif
|
|
|
|
#define SI_MAX_SIZE 128
|
|
#ifndef SI_PAD_SIZE
|
|
#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
|
|
#endif
|
|
|
|
#ifndef __ARCH_SI_UID_T
|
|
#define __ARCH_SI_UID_T uid_t
|
|
#endif
|
|
|
|
/*
|
|
* The default "si_band" type is "long", as specified by POSIX.
|
|
* However, some architectures want to override this to "int"
|
|
* for historical compatibility reasons, so we allow that.
|
|
*/
|
|
#ifndef __ARCH_SI_BAND_T
|
|
#define __ARCH_SI_BAND_T long
|
|
#endif
|
|
|
|
#ifndef HAVE_ARCH_SIGINFO_T
|
|
|
|
typedef struct siginfo {
|
|
int si_signo;
|
|
int si_errno;
|
|
int si_code;
|
|
|
|
union {
|
|
int _pad[SI_PAD_SIZE];
|
|
|
|
/* kill() */
|
|
struct {
|
|
pid_t _pid; /* sender's pid */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
} _kill;
|
|
|
|
/* POSIX.1b timers */
|
|
struct {
|
|
timer_t _tid; /* timer id */
|
|
int _overrun; /* overrun count */
|
|
char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
|
|
sigval_t _sigval; /* same as below */
|
|
int _sys_private; /* not to be passed to user */
|
|
} _timer;
|
|
|
|
/* POSIX.1b signals */
|
|
struct {
|
|
pid_t _pid; /* sender's pid */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
sigval_t _sigval;
|
|
} _rt;
|
|
|
|
/* SIGCHLD */
|
|
struct {
|
|
pid_t _pid; /* which child */
|
|
__ARCH_SI_UID_T _uid; /* sender's uid */
|
|
int _status; /* exit code */
|
|
clock_t _utime;
|
|
clock_t _stime;
|
|
} _sigchld;
|
|
|
|
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
|
|
struct {
|
|
void __user *_addr; /* faulting insn/memory ref. */
|
|
#ifdef __ARCH_SI_TRAPNO
|
|
int _trapno; /* TRAP # which caused the signal */
|
|
#endif
|
|
} _sigfault;
|
|
|
|
/* SIGPOLL */
|
|
struct {
|
|
__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
|
|
int _fd;
|
|
} _sigpoll;
|
|
} _sifields;
|
|
} siginfo_t;
|
|
|
|
#endif
|
|
|
|
/*
|
|
* How these fields are to be accessed.
|
|
*/
|
|
#define si_pid _sifields._kill._pid
|
|
#define si_uid _sifields._kill._uid
|
|
#define si_tid _sifields._timer._tid
|
|
#define si_overrun _sifields._timer._overrun
|
|
#define si_sys_private _sifields._timer._sys_private
|
|
#define si_status _sifields._sigchld._status
|
|
#define si_utime _sifields._sigchld._utime
|
|
#define si_stime _sifields._sigchld._stime
|
|
#define si_value _sifields._rt._sigval
|
|
#define si_int _sifields._rt._sigval.sival_int
|
|
#define si_ptr _sifields._rt._sigval.sival_ptr
|
|
#define si_addr _sifields._sigfault._addr
|
|
#ifdef __ARCH_SI_TRAPNO
|
|
#define si_trapno _sifields._sigfault._trapno
|
|
#endif
|
|
#define si_band _sifields._sigpoll._band
|
|
#define si_fd _sifields._sigpoll._fd
|
|
|
|
#ifdef __KERNEL__
|
|
#define __SI_MASK 0xffff0000u
|
|
#define __SI_KILL (0 << 16)
|
|
#define __SI_TIMER (1 << 16)
|
|
#define __SI_POLL (2 << 16)
|
|
#define __SI_FAULT (3 << 16)
|
|
#define __SI_CHLD (4 << 16)
|
|
#define __SI_RT (5 << 16)
|
|
#define __SI_MESGQ (6 << 16)
|
|
#define __SI_CODE(T,N) ((T) | ((N) & 0xffff))
|
|
#else
|
|
#define __SI_KILL 0
|
|
#define __SI_TIMER 0
|
|
#define __SI_POLL 0
|
|
#define __SI_FAULT 0
|
|
#define __SI_CHLD 0
|
|
#define __SI_RT 0
|
|
#define __SI_MESGQ 0
|
|
#define __SI_CODE(T,N) (N)
|
|
#endif
|
|
|
|
/*
|
|
* si_code values
|
|
* Digital reserves positive values for kernel-generated signals.
|
|
*/
|
|
#define SI_USER 0 /* sent by kill, sigsend, raise */
|
|
#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
|
|
#define SI_QUEUE -1 /* sent by sigqueue */
|
|
#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
|
|
#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
|
|
#define SI_ASYNCIO -4 /* sent by AIO completion */
|
|
#define SI_SIGIO -5 /* sent by queued SIGIO */
|
|
#define SI_TKILL -6 /* sent by tkill system call */
|
|
#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
|
|
|
|
#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
|
|
#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
|
|
|
|
/*
|
|
* SIGILL si_codes
|
|
*/
|
|
#define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */
|
|
#define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */
|
|
#define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */
|
|
#define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */
|
|
#define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */
|
|
#define ILL_PRVREG (__SI_FAULT|6) /* privileged register */
|
|
#define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */
|
|
#define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */
|
|
#define NSIGILL 8
|
|
|
|
/*
|
|
* SIGFPE si_codes
|
|
*/
|
|
#define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */
|
|
#define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */
|
|
#define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */
|
|
#define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */
|
|
#define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */
|
|
#define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */
|
|
#define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */
|
|
#define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */
|
|
#define NSIGFPE 8
|
|
|
|
/*
|
|
* SIGSEGV si_codes
|
|
*/
|
|
#define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
|
|
#define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
|
|
#define NSIGSEGV 2
|
|
|
|
/*
|
|
* SIGBUS si_codes
|
|
*/
|
|
#define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */
|
|
#define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */
|
|
#define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */
|
|
#define NSIGBUS 3
|
|
|
|
/*
|
|
* SIGTRAP si_codes
|
|
*/
|
|
#define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */
|
|
#define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
|
|
#define NSIGTRAP 2
|
|
|
|
/*
|
|
* SIGCHLD si_codes
|
|
*/
|
|
#define CLD_EXITED (__SI_CHLD|1) /* child has exited */
|
|
#define CLD_KILLED (__SI_CHLD|2) /* child was killed */
|
|
#define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */
|
|
#define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */
|
|
#define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */
|
|
#define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */
|
|
#define NSIGCHLD 6
|
|
|
|
/*
|
|
* SIGPOLL si_codes
|
|
*/
|
|
#define POLL_IN (__SI_POLL|1) /* data input available */
|
|
#define POLL_OUT (__SI_POLL|2) /* output buffers available */
|
|
#define POLL_MSG (__SI_POLL|3) /* input message available */
|
|
#define POLL_ERR (__SI_POLL|4) /* i/o error */
|
|
#define POLL_PRI (__SI_POLL|5) /* high priority input available */
|
|
#define POLL_HUP (__SI_POLL|6) /* device disconnected */
|
|
#define NSIGPOLL 6
|
|
|
|
/*
|
|
* sigevent definitions
|
|
*
|
|
* It seems likely that SIGEV_THREAD will have to be handled from
|
|
* userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
|
|
* thread manager then catches and does the appropriate nonsense.
|
|
* However, everything is written out here so as to not get lost.
|
|
*/
|
|
#define SIGEV_SIGNAL 0 /* notify via signal */
|
|
#define SIGEV_NONE 1 /* other notification: meaningless */
|
|
#define SIGEV_THREAD 2 /* deliver via thread creation */
|
|
#define SIGEV_THREAD_ID 4 /* deliver to thread */
|
|
|
|
#define SIGEV_MAX_SIZE 64
|
|
#ifndef SIGEV_PAD_SIZE
|
|
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
|
|
#endif
|
|
|
|
typedef struct sigevent {
|
|
sigval_t sigev_value;
|
|
int sigev_signo;
|
|
int sigev_notify;
|
|
union {
|
|
int _pad[SIGEV_PAD_SIZE];
|
|
int _tid;
|
|
|
|
struct {
|
|
void (*_function)(sigval_t);
|
|
void *_attribute; /* really pthread_attr_t */
|
|
} _sigev_thread;
|
|
} _sigev_un;
|
|
} sigevent_t;
|
|
|
|
#define sigev_notify_function _sigev_un._sigev_thread._function
|
|
#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
|
|
#define sigev_notify_thread_id _sigev_un._tid
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct siginfo;
|
|
void do_schedule_next_timer(struct siginfo *info);
|
|
|
|
#ifndef HAVE_ARCH_COPY_SIGINFO
|
|
|
|
#include <linux/string.h>
|
|
|
|
static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
|
|
{
|
|
if (from->si_code < 0)
|
|
memcpy(to, from, sizeof(*to));
|
|
else
|
|
/* _sigchld is currently the largest know union member */
|
|
memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
|
|
}
|
|
|
|
#endif
|
|
|
|
extern int copy_siginfo_to_user(struct siginfo __user *to, struct siginfo *from);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif
|