/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _UAPI_ASM_GENERIC_SIGINFO_H#define _UAPI_ASM_GENERIC_SIGINFO_H #include <linux/compiler.h>#include <linux/types.h> typedef union sigval { int sival_int; void __user *sival_ptr;} sigval_t; #define SI_MAX_SIZE 128 /* * 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 __ARCH_SI_CLOCK_T#define __ARCH_SI_CLOCK_T __kernel_clock_t#endif #ifndef __ARCH_SI_ATTRIBUTES#define __ARCH_SI_ATTRIBUTES#endif /* * Be careful when extending this union. On 32bit siginfo_t is 32bit * aligned. Which means that a 64bit field or any other field that * would increase the alignment of siginfo_t will break the ABI. */union __sifields { /* kill() */ struct { __kernel_pid_t _pid; /* sender's pid */ __kernel_uid32_t _uid; /* sender's uid */ } _kill; /* POSIX.1b timers */ struct { __kernel_timer_t _tid; /* timer id */ int _overrun; /* overrun count */ sigval_t _sigval; /* same as below */ int _sys_private; /* Not used by the kernel. Historic leftover. Always 0. */ } _timer; /* POSIX.1b signals */ struct { __kernel_pid_t _pid; /* sender's pid */ __kernel_uid32_t _uid; /* sender's uid */ sigval_t _sigval; } _rt; /* SIGCHLD */ struct { __kernel_pid_t _pid; /* which child */ __kernel_uid32_t _uid; /* sender's uid */ int _status; /* exit code */ __ARCH_SI_CLOCK_T _utime; __ARCH_SI_CLOCK_T _stime; } _sigchld; /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */ struct { void __user *_addr; /* faulting insn/memory ref. */ #define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \ sizeof(short) : __alignof__(void *)) union { /* used on alpha and sparc */ int _trapno; /* TRAP # which caused the signal */ /* * used when si_code=BUS_MCEERR_AR or * used when si_code=BUS_MCEERR_AO */ short _addr_lsb; /* LSB of the reported address */ /* used when si_code=SEGV_BNDERR */ struct { char _dummy_bnd[__ADDR_BND_PKEY_PAD]; void __user *_lower; void __user *_upper; } _addr_bnd; /* used when si_code=SEGV_PKUERR */ struct { char _dummy_pkey[__ADDR_BND_PKEY_PAD]; __u32 _pkey; } _addr_pkey; /* used when si_code=TRAP_PERF */ struct { unsigned long _data; __u32 _type; __u32 _flags; } _perf; }; } _sigfault; /* SIGPOLL */ struct { __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ int _fd; } _sigpoll; /* SIGSYS */ struct { void __user *_call_addr; /* calling user insn */ int _syscall; /* triggering system call number */ unsigned int _arch; /* AUDIT_ARCH_* of syscall */ } _sigsys;}; #ifndef __ARCH_HAS_SWAPPED_SIGINFO#define __SIGINFO \struct { \ int si_signo; \ int si_errno; \ int si_code; \ union __sifields _sifields; \}#else#define __SIGINFO \struct { \ int si_signo; \ int si_code; \ int si_errno; \ union __sifields _sifields; \}#endif /* __ARCH_HAS_SWAPPED_SIGINFO */ typedef struct siginfo { union { __SIGINFO; int _si_pad[SI_MAX_SIZE/sizeof(int)]; };} __ARCH_SI_ATTRIBUTES siginfo_t; /* * 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#define si_trapno _sifields._sigfault._trapno#define si_addr_lsb _sifields._sigfault._addr_lsb#define si_lower _sifields._sigfault._addr_bnd._lower#define si_upper _sifields._sigfault._addr_bnd._upper#define si_pkey _sifields._sigfault._addr_pkey._pkey#define si_perf_data _sifields._sigfault._perf._data#define si_perf_type _sifields._sigfault._perf._type#define si_perf_flags _sifields._sigfault._perf._flags#define si_band _sifields._sigpoll._band#define si_fd _sifields._sigpoll._fd#define si_call_addr _sifields._sigsys._call_addr#define si_syscall _sifields._sigsys._syscall#define si_arch _sifields._sigsys._arch /* * 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 -2 /* sent by timer expiration */#define 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_ASYNCNL -60 /* sent by glibc async name lookup completion */ #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) /* * SIGILL si_codes */#define ILL_ILLOPC 1 /* illegal opcode */#define ILL_ILLOPN 2 /* illegal operand */#define ILL_ILLADR 3 /* illegal addressing mode */#define ILL_ILLTRP 4 /* illegal trap */#define ILL_PRVOPC 5 /* privileged opcode */#define ILL_PRVREG 6 /* privileged register */#define ILL_COPROC 7 /* coprocessor error */#define ILL_BADSTK 8 /* internal stack error */#define ILL_BADIADDR 9 /* unimplemented instruction address */#define __ILL_BREAK 10 /* illegal break */#define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */#define NSIGILL 11 /* * SIGFPE si_codes */#define FPE_INTDIV 1 /* integer divide by zero */#define FPE_INTOVF 2 /* integer overflow */#define FPE_FLTDIV 3 /* floating point divide by zero */#define FPE_FLTOVF 4 /* floating point overflow */#define FPE_FLTUND 5 /* floating point underflow */#define FPE_FLTRES 6 /* floating point inexact result */#define FPE_FLTINV 7 /* floating point invalid operation */#define FPE_FLTSUB 8 /* subscript out of range */#define __FPE_DECOVF 9 /* decimal overflow */#define __FPE_DECDIV 10 /* decimal division by zero */#define __FPE_DECERR 11 /* packed decimal error */#define __FPE_INVASC 12 /* invalid ASCII digit */#define __FPE_INVDEC 13 /* invalid decimal digit */#define FPE_FLTUNK 14 /* undiagnosed floating-point exception */#define FPE_CONDTRAP 15 /* trap on condition */#define NSIGFPE 15 /* * SIGSEGV si_codes */#define SEGV_MAPERR 1 /* address not mapped to object */#define SEGV_ACCERR 2 /* invalid permissions for mapped object */#define SEGV_BNDERR 3 /* failed address bound checks */#ifdef __ia64__# define __SEGV_PSTKOVF 4 /* paragraph stack overflow */#else# define SEGV_PKUERR 4 /* failed protection key checks */#endif#define SEGV_ACCADI 5 /* ADI not enabled for mapped object */#define SEGV_ADIDERR 6 /* Disrupting MCD error */#define SEGV_ADIPERR 7 /* Precise MCD exception */#define SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */#define SEGV_MTESERR 9 /* Synchronous ARM MTE exception */#define SEGV_CPERR 10 /* Control protection fault */#define NSIGSEGV 10 /* * SIGBUS si_codes */#define BUS_ADRALN 1 /* invalid address alignment */#define BUS_ADRERR 2 /* non-existent physical address */#define BUS_OBJERR 3 /* object specific hardware error *//* hardware memory error consumed on a machine check: action required */#define BUS_MCEERR_AR 4/* hardware memory error detected in process but not consumed: action optional*/#define BUS_MCEERR_AO 5#define NSIGBUS 5 /* * SIGTRAP si_codes */#define TRAP_BRKPT 1 /* process breakpoint */#define TRAP_TRACE 2 /* process trace trap */#define TRAP_BRANCH 3 /* process taken branch trap */#define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */#define TRAP_UNK 5 /* undiagnosed trap */#define TRAP_PERF 6 /* perf event with sigtrap=1 */#define NSIGTRAP 6 /* * There is an additional set of SIGTRAP si_codes used by ptrace * that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP) */ /* * Flags for si_perf_flags if SIGTRAP si_code is TRAP_PERF. */#define TRAP_PERF_FLAG_ASYNC (1u << 0) /* * SIGCHLD si_codes */#define CLD_EXITED 1 /* child has exited */#define CLD_KILLED 2 /* child was killed */#define CLD_DUMPED 3 /* child terminated abnormally */#define CLD_TRAPPED 4 /* traced child has trapped */#define CLD_STOPPED 5 /* child has stopped */#define CLD_CONTINUED 6 /* stopped child has continued */#define NSIGCHLD 6 /* * SIGPOLL (or any other signal without signal specific si_codes) si_codes */#define POLL_IN 1 /* data input available */#define POLL_OUT 2 /* output buffers available */#define POLL_MSG 3 /* input message available */#define POLL_ERR 4 /* i/o error */#define POLL_PRI 5 /* high priority input available */#define POLL_HUP 6 /* device disconnected */#define NSIGPOLL 6 /* * SIGSYS si_codes */#define SYS_SECCOMP 1 /* seccomp triggered */#define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */#define NSIGSYS 2 /* * SIGEMT si_codes */#define EMT_TAGOVF 1 /* tag overflow */#define NSIGEMT 1 /* * 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 #endif /* _UAPI_ASM_GENERIC_SIGINFO_H */
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_GENERIC_SIGINFO_H
#define _UAPI_ASM_GENERIC_SIGINFO_H
#include <linux/compiler.h>
#include <linux/types.h>
typedef union sigval {
int sival_int;
void __user *sival_ptr;
} sigval_t;
#define SI_MAX_SIZE 128
/*
* 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 __ARCH_SI_CLOCK_T
#define __ARCH_SI_CLOCK_T __kernel_clock_t
#endif
#ifndef __ARCH_SI_ATTRIBUTES
#define __ARCH_SI_ATTRIBUTES
#endif
/*
* Be careful when extending this union. On 32bit siginfo_t is 32bit
* aligned. Which means that a 64bit field or any other field that
* would increase the alignment of siginfo_t will break the ABI.
*/
union __sifields {
/* kill() */
struct {
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
} _kill;
/* POSIX.1b timers */
struct {
__kernel_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
sigval_t _sigval; /* same as below */
int _sys_private; /* Not used by the kernel. Historic leftover. Always 0. */
} _timer;
/* POSIX.1b signals */
struct {
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
sigval_t _sigval;
} _rt;
/* SIGCHLD */
struct {
__kernel_pid_t _pid; /* which child */
__kernel_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
__ARCH_SI_CLOCK_T _utime;
__ARCH_SI_CLOCK_T _stime;
} _sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
struct {
void __user *_addr; /* faulting insn/memory ref. */
#define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \
sizeof(short) : __alignof__(void *))
union {
/* used on alpha and sparc */
int _trapno; /* TRAP # which caused the signal */
/*
* used when si_code=BUS_MCEERR_AR or
* used when si_code=BUS_MCEERR_AO
*/
short _addr_lsb; /* LSB of the reported address */
/* used when si_code=SEGV_BNDERR */
struct {
char _dummy_bnd[__ADDR_BND_PKEY_PAD];
void __user *_lower;
void __user *_upper;
} _addr_bnd;
/* used when si_code=SEGV_PKUERR */
struct {
char _dummy_pkey[__ADDR_BND_PKEY_PAD];
__u32 _pkey;
} _addr_pkey;
/* used when si_code=TRAP_PERF */
struct {
unsigned long _data;
__u32 _type;
__u32 _flags;
} _perf;
};
} _sigfault;
/* SIGPOLL */
struct {
__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
/* SIGSYS */
struct {
void __user *_call_addr; /* calling user insn */
int _syscall; /* triggering system call number */
unsigned int _arch; /* AUDIT_ARCH_* of syscall */
} _sigsys;
};
#ifndef __ARCH_HAS_SWAPPED_SIGINFO
#define __SIGINFO \
struct { \
int si_signo; \
int si_errno; \
int si_code; \
union __sifields _sifields; \
}
#else
#define __SIGINFO \
struct { \
int si_signo; \
int si_code; \
int si_errno; \
union __sifields _sifields; \
}
#endif /* __ARCH_HAS_SWAPPED_SIGINFO */
typedef struct siginfo {
union {
__SIGINFO;
int _si_pad[SI_MAX_SIZE/sizeof(int)];
};
} __ARCH_SI_ATTRIBUTES siginfo_t;
/*
* 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
#define si_trapno _sifields._sigfault._trapno
#define si_addr_lsb _sifields._sigfault._addr_lsb
#define si_lower _sifields._sigfault._addr_bnd._lower
#define si_upper _sifields._sigfault._addr_bnd._upper
#define si_pkey _sifields._sigfault._addr_pkey._pkey
#define si_perf_data _sifields._sigfault._perf._data
#define si_perf_type _sifields._sigfault._perf._type
#define si_perf_flags _sifields._sigfault._perf._flags
#define si_band _sifields._sigpoll._band
#define si_fd _sifields._sigpoll._fd
#define si_call_addr _sifields._sigsys._call_addr
#define si_syscall _sifields._sigsys._syscall
#define si_arch _sifields._sigsys._arch
/*
* 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 -2 /* sent by timer expiration */
#define 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_ASYNCNL -60 /* sent by glibc async name lookup completion */
#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
/*
* SIGILL si_codes
*/
#define ILL_ILLOPC 1 /* illegal opcode */
#define ILL_ILLOPN 2 /* illegal operand */
#define ILL_ILLADR 3 /* illegal addressing mode */
#define ILL_ILLTRP 4 /* illegal trap */
#define ILL_PRVOPC 5 /* privileged opcode */
#define ILL_PRVREG 6 /* privileged register */
#define ILL_COPROC 7 /* coprocessor error */
#define ILL_BADSTK 8 /* internal stack error */
#define ILL_BADIADDR 9 /* unimplemented instruction address */
#define __ILL_BREAK 10 /* illegal break */
#define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */
#define NSIGILL 11
/*
* SIGFPE si_codes
*/
#define FPE_INTDIV 1 /* integer divide by zero */
#define FPE_INTOVF 2 /* integer overflow */
#define FPE_FLTDIV 3 /* floating point divide by zero */
#define FPE_FLTOVF 4 /* floating point overflow */
#define FPE_FLTUND 5 /* floating point underflow */
#define FPE_FLTRES 6 /* floating point inexact result */
#define FPE_FLTINV 7 /* floating point invalid operation */
#define FPE_FLTSUB 8 /* subscript out of range */
#define __FPE_DECOVF 9 /* decimal overflow */
#define __FPE_DECDIV 10 /* decimal division by zero */
#define __FPE_DECERR 11 /* packed decimal error */
#define __FPE_INVASC 12 /* invalid ASCII digit */
#define __FPE_INVDEC 13 /* invalid decimal digit */
#define FPE_FLTUNK 14 /* undiagnosed floating-point exception */
#define FPE_CONDTRAP 15 /* trap on condition */
#define NSIGFPE 15
/*
* SIGSEGV si_codes
*/
#define SEGV_MAPERR 1 /* address not mapped to object */
#define SEGV_ACCERR 2 /* invalid permissions for mapped object */
#define SEGV_BNDERR 3 /* failed address bound checks */
#ifdef __ia64__
# define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
#else
# define SEGV_PKUERR 4 /* failed protection key checks */
#endif
#define SEGV_ACCADI 5 /* ADI not enabled for mapped object */
#define SEGV_ADIDERR 6 /* Disrupting MCD error */
#define SEGV_ADIPERR 7 /* Precise MCD exception */
#define SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */
#define SEGV_MTESERR 9 /* Synchronous ARM MTE exception */
#define SEGV_CPERR 10 /* Control protection fault */
#define NSIGSEGV 10
/*
* SIGBUS si_codes
*/
#define BUS_ADRALN 1 /* invalid address alignment */
#define BUS_ADRERR 2 /* non-existent physical address */
#define BUS_OBJERR 3 /* object specific hardware error */
/* hardware memory error consumed on a machine check: action required */
#define BUS_MCEERR_AR 4
/* hardware memory error detected in process but not consumed: action optional*/
#define BUS_MCEERR_AO 5
#define NSIGBUS 5
/*
* SIGTRAP si_codes
*/
#define TRAP_BRKPT 1 /* process breakpoint */
#define TRAP_TRACE 2 /* process trace trap */
#define TRAP_BRANCH 3 /* process taken branch trap */
#define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */
#define TRAP_UNK 5 /* undiagnosed trap */
#define TRAP_PERF 6 /* perf event with sigtrap=1 */
#define NSIGTRAP 6
/*
* There is an additional set of SIGTRAP si_codes used by ptrace
* that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
*/
/*
* Flags for si_perf_flags if SIGTRAP si_code is TRAP_PERF.
*/
#define TRAP_PERF_FLAG_ASYNC (1u << 0)
/*
* SIGCHLD si_codes
*/
#define CLD_EXITED 1 /* child has exited */
#define CLD_KILLED 2 /* child was killed */
#define CLD_DUMPED 3 /* child terminated abnormally */
#define CLD_TRAPPED 4 /* traced child has trapped */
#define CLD_STOPPED 5 /* child has stopped */
#define CLD_CONTINUED 6 /* stopped child has continued */
#define NSIGCHLD 6
/*
* SIGPOLL (or any other signal without signal specific si_codes) si_codes
*/
#define POLL_IN 1 /* data input available */
#define POLL_OUT 2 /* output buffers available */
#define POLL_MSG 3 /* input message available */
#define POLL_ERR 4 /* i/o error */
#define POLL_PRI 5 /* high priority input available */
#define POLL_HUP 6 /* device disconnected */
#define NSIGPOLL 6
/*
* SIGSYS si_codes
*/
#define SYS_SECCOMP 1 /* seccomp triggered */
#define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */
#define NSIGSYS 2
/*
* SIGEMT si_codes
*/
#define EMT_TAGOVF 1 /* tag overflow */
#define NSIGEMT 1
/*
* 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
#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */