include/asm-generic/siginfo.h - kernel/msm-4.19 - Gitiles

 #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	__kernel_uid32_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 {
 			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 		} _kill;

 		/* POSIX.1b timers */
 		struct {
 			__kernel_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 {
 			__kernel_pid_t _pid;	/* sender's pid */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			sigval_t _sigval;
 		} _rt;

 		/* SIGCHLD */
 		struct {
 			__kernel_pid_t _pid;	/* which child */
 			__ARCH_SI_UID_T _uid;	/* sender's uid */
 			int _status;		/* exit code */
 			__kernel_clock_t _utime;
 			__kernel_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 TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
 #define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
 #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 */

 /*
  * This works because the alignment is ok on all current architectures
  * but we leave open this being overridden in the future
  */
 #ifndef __ARCH_SIGEV_PREAMBLE_SIZE
 #define __ARCH_SIGEV_PREAMBLE_SIZE	(sizeof(int) * 2 + sizeof(sigval_t))
 #endif

 #define SIGEV_MAX_SIZE	64
 #define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
 		/ sizeof(int))

 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
	#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 __kernel_uid32_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 {
	__kernel_pid_t _pid; /* sender's pid */
	__ARCH_SI_UID_T _uid; /* sender's uid */
	} _kill;

	/* POSIX.1b timers */
	struct {
	__kernel_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 {
	__kernel_pid_t _pid; /* sender's pid */
	__ARCH_SI_UID_T _uid; /* sender's uid */
	sigval_t _sigval;
	} _rt;

	/* SIGCHLD */
	struct {
	__kernel_pid_t _pid; /* which child */
	__ARCH_SI_UID_T _uid; /* sender's uid */
	int _status; /* exit code */
	__kernel_clock_t _utime;
	__kernel_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 TRAP_BRANCH (__SI_FAULT\|3) /* process taken branch trap */
	#define TRAP_HWBKPT (__SI_FAULT\|4) /* hardware breakpoint/watchpoint */
	#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 */

	/*
	* This works because the alignment is ok on all current architectures
	* but we leave open this being overridden in the future
	*/
	#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
	#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
	#endif

	#define SIGEV_MAX_SIZE 64
	#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
	/ sizeof(int))

	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