Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
		
			
				
	
	
		
			298 lines
		
	
	
	
		
			8.7 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			298 lines
		
	
	
	
		
			8.7 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef _UAPI_ASM_GENERIC_SIGINFO_H
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#define _UAPI_ASM_GENERIC_SIGINFO_H
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#include <linux/compiler.h>
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#include <linux/types.h>
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typedef union sigval {
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	int sival_int;
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	void __user *sival_ptr;
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} sigval_t;
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/*
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 * This is the size (including padding) of the part of the
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 * struct siginfo that is before the union.
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 */
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#ifndef __ARCH_SI_PREAMBLE_SIZE
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#define __ARCH_SI_PREAMBLE_SIZE	(3 * sizeof(int))
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#endif
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#define SI_MAX_SIZE	128
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#ifndef SI_PAD_SIZE
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#define SI_PAD_SIZE	((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
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#endif
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#ifndef __ARCH_SI_UID_T
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#define __ARCH_SI_UID_T	__kernel_uid32_t
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#endif
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/*
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 * The default "si_band" type is "long", as specified by POSIX.
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 * However, some architectures want to override this to "int"
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 * for historical compatibility reasons, so we allow that.
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 */
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#ifndef __ARCH_SI_BAND_T
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#define __ARCH_SI_BAND_T long
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#endif
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#ifndef __ARCH_SI_CLOCK_T
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#define __ARCH_SI_CLOCK_T __kernel_clock_t
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#endif
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#ifndef __ARCH_SI_ATTRIBUTES
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#define __ARCH_SI_ATTRIBUTES
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#endif
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#ifndef HAVE_ARCH_SIGINFO_T
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typedef struct siginfo {
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	int si_signo;
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	int si_errno;
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	int si_code;
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	union {
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		int _pad[SI_PAD_SIZE];
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		/* kill() */
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		struct {
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			__kernel_pid_t _pid;	/* sender's pid */
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			__ARCH_SI_UID_T _uid;	/* sender's uid */
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		} _kill;
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		/* POSIX.1b timers */
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		struct {
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			__kernel_timer_t _tid;	/* timer id */
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			int _overrun;		/* overrun count */
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			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
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			sigval_t _sigval;	/* same as below */
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			int _sys_private;       /* not to be passed to user */
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		} _timer;
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		/* POSIX.1b signals */
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		struct {
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			__kernel_pid_t _pid;	/* sender's pid */
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			__ARCH_SI_UID_T _uid;	/* sender's uid */
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			sigval_t _sigval;
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		} _rt;
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		/* SIGCHLD */
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		struct {
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			__kernel_pid_t _pid;	/* which child */
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			__ARCH_SI_UID_T _uid;	/* sender's uid */
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			int _status;		/* exit code */
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			__ARCH_SI_CLOCK_T _utime;
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			__ARCH_SI_CLOCK_T _stime;
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		} _sigchld;
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		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
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		struct {
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			void __user *_addr; /* faulting insn/memory ref. */
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#ifdef __ARCH_SI_TRAPNO
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			int _trapno;	/* TRAP # which caused the signal */
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#endif
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			short _addr_lsb; /* LSB of the reported address */
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		} _sigfault;
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		/* SIGPOLL */
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		struct {
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			__ARCH_SI_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
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			int _fd;
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		} _sigpoll;
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		/* SIGSYS */
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		struct {
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			void __user *_call_addr; /* calling user insn */
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			int _syscall;	/* triggering system call number */
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			unsigned int _arch;	/* AUDIT_ARCH_* of syscall */
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		} _sigsys;
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	} _sifields;
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} __ARCH_SI_ATTRIBUTES siginfo_t;
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/* If the arch shares siginfo, then it has SIGSYS. */
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#define __ARCH_SIGSYS
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#endif
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/*
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 * How these fields are to be accessed.
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 */
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#define si_pid		_sifields._kill._pid
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#define si_uid		_sifields._kill._uid
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#define si_tid		_sifields._timer._tid
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#define si_overrun	_sifields._timer._overrun
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#define si_sys_private  _sifields._timer._sys_private
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#define si_status	_sifields._sigchld._status
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#define si_utime	_sifields._sigchld._utime
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#define si_stime	_sifields._sigchld._stime
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#define si_value	_sifields._rt._sigval
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#define si_int		_sifields._rt._sigval.sival_int
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#define si_ptr		_sifields._rt._sigval.sival_ptr
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#define si_addr		_sifields._sigfault._addr
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#ifdef __ARCH_SI_TRAPNO
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#define si_trapno	_sifields._sigfault._trapno
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#endif
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#define si_addr_lsb	_sifields._sigfault._addr_lsb
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#define si_band		_sifields._sigpoll._band
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#define si_fd		_sifields._sigpoll._fd
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#ifdef __ARCH_SIGSYS
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#define si_call_addr	_sifields._sigsys._call_addr
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#define si_syscall	_sifields._sigsys._syscall
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#define si_arch		_sifields._sigsys._arch
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#endif
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#ifndef __KERNEL__
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#define __SI_KILL	0
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#define __SI_TIMER	0
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#define __SI_POLL	0
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#define __SI_FAULT	0
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#define __SI_CHLD	0
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#define __SI_RT		0
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#define __SI_MESGQ	0
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#define __SI_SYS	0
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#define __SI_CODE(T,N)	(N)
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#endif
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/*
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 * si_code values
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 * Digital reserves positive values for kernel-generated signals.
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 */
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#define SI_USER		0		/* sent by kill, sigsend, raise */
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#define SI_KERNEL	0x80		/* sent by the kernel from somewhere */
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#define SI_QUEUE	-1		/* sent by sigqueue */
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#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
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#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
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#define SI_ASYNCIO	-4		/* sent by AIO completion */
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#define SI_SIGIO	-5		/* sent by queued SIGIO */
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#define SI_TKILL	-6		/* sent by tkill system call */
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#define SI_DETHREAD	-7		/* sent by execve() killing subsidiary threads */
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#define SI_FROMUSER(siptr)	((siptr)->si_code <= 0)
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#define SI_FROMKERNEL(siptr)	((siptr)->si_code > 0)
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/*
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 * SIGILL si_codes
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 */
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#define ILL_ILLOPC	(__SI_FAULT|1)	/* illegal opcode */
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#define ILL_ILLOPN	(__SI_FAULT|2)	/* illegal operand */
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#define ILL_ILLADR	(__SI_FAULT|3)	/* illegal addressing mode */
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#define ILL_ILLTRP	(__SI_FAULT|4)	/* illegal trap */
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#define ILL_PRVOPC	(__SI_FAULT|5)	/* privileged opcode */
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#define ILL_PRVREG	(__SI_FAULT|6)	/* privileged register */
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#define ILL_COPROC	(__SI_FAULT|7)	/* coprocessor error */
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#define ILL_BADSTK	(__SI_FAULT|8)	/* internal stack error */
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#define NSIGILL		8
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/*
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 * SIGFPE si_codes
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 */
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#define FPE_INTDIV	(__SI_FAULT|1)	/* integer divide by zero */
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#define FPE_INTOVF	(__SI_FAULT|2)	/* integer overflow */
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#define FPE_FLTDIV	(__SI_FAULT|3)	/* floating point divide by zero */
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#define FPE_FLTOVF	(__SI_FAULT|4)	/* floating point overflow */
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#define FPE_FLTUND	(__SI_FAULT|5)	/* floating point underflow */
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#define FPE_FLTRES	(__SI_FAULT|6)	/* floating point inexact result */
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#define FPE_FLTINV	(__SI_FAULT|7)	/* floating point invalid operation */
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#define FPE_FLTSUB	(__SI_FAULT|8)	/* subscript out of range */
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#define NSIGFPE		8
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/*
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 * SIGSEGV si_codes
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 */
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#define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
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#define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
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#define NSIGSEGV	2
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/*
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 * SIGBUS si_codes
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 */
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#define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
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#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existent physical address */
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#define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
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/* hardware memory error consumed on a machine check: action required */
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#define BUS_MCEERR_AR	(__SI_FAULT|4)
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/* hardware memory error detected in process but not consumed: action optional*/
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#define BUS_MCEERR_AO	(__SI_FAULT|5)
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#define NSIGBUS		5
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/*
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 * SIGTRAP si_codes
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 */
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#define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
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#define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
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#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
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#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
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#define NSIGTRAP	4
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/*
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 * SIGCHLD si_codes
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 */
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#define CLD_EXITED	(__SI_CHLD|1)	/* child has exited */
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#define CLD_KILLED	(__SI_CHLD|2)	/* child was killed */
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#define CLD_DUMPED	(__SI_CHLD|3)	/* child terminated abnormally */
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#define CLD_TRAPPED	(__SI_CHLD|4)	/* traced child has trapped */
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#define CLD_STOPPED	(__SI_CHLD|5)	/* child has stopped */
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#define CLD_CONTINUED	(__SI_CHLD|6)	/* stopped child has continued */
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#define NSIGCHLD	6
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/*
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 * SIGPOLL si_codes
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 */
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#define POLL_IN		(__SI_POLL|1)	/* data input available */
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#define POLL_OUT	(__SI_POLL|2)	/* output buffers available */
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#define POLL_MSG	(__SI_POLL|3)	/* input message available */
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#define POLL_ERR	(__SI_POLL|4)	/* i/o error */
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#define POLL_PRI	(__SI_POLL|5)	/* high priority input available */
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#define POLL_HUP	(__SI_POLL|6)	/* device disconnected */
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#define NSIGPOLL	6
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/*
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 * SIGSYS si_codes
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 */
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#define SYS_SECCOMP		(__SI_SYS|1)	/* seccomp triggered */
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#define NSIGSYS	1
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/*
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 * sigevent definitions
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 * 
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 * It seems likely that SIGEV_THREAD will have to be handled from 
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 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
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 * thread manager then catches and does the appropriate nonsense.
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 * However, everything is written out here so as to not get lost.
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 */
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#define SIGEV_SIGNAL	0	/* notify via signal */
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#define SIGEV_NONE	1	/* other notification: meaningless */
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#define SIGEV_THREAD	2	/* deliver via thread creation */
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#define SIGEV_THREAD_ID 4	/* deliver to thread */
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/*
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 * This works because the alignment is ok on all current architectures
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 * but we leave open this being overridden in the future
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 */
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#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
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#define __ARCH_SIGEV_PREAMBLE_SIZE	(sizeof(int) * 2 + sizeof(sigval_t))
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#endif
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#define SIGEV_MAX_SIZE	64
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#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
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		/ sizeof(int))
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typedef struct sigevent {
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	sigval_t sigev_value;
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	int sigev_signo;
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	int sigev_notify;
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	union {
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		int _pad[SIGEV_PAD_SIZE];
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		 int _tid;
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		struct {
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			void (*_function)(sigval_t);
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			void *_attribute;	/* really pthread_attr_t */
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		} _sigev_thread;
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	} _sigev_un;
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} sigevent_t;
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#define sigev_notify_function	_sigev_un._sigev_thread._function
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#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
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#define sigev_notify_thread_id	 _sigev_un._tid
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#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */
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