Release 4.16 include/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;
/*
* 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
/*
* 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
typedef struct siginfo {
int si_signo;
#ifndef __ARCH_HAS_SWAPPED_SIGINFO
int si_errno;
int si_code;
#else
int si_code;
int si_errno;
#endif
union {
int _pad[SI_PAD_SIZE];
/* 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 to be passed to user */
} _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. */
#ifdef __ARCH_SI_TRAPNO
int _trapno; /* TRAP # which caused the signal */
#endif
#ifdef __ia64__
int _imm; /* immediate value for "break" */
unsigned int _flags; /* see ia64 si_flags */
unsigned long _isr; /* isr */
#endif
union {
/*
* 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 {
void *_dummy_bnd;
void __user *_lower;
void __user *_upper;
} _addr_bnd;
/* used when si_code=SEGV_PKUERR */
struct {
void *_dummy_pkey;
__u32 _pkey;
} _addr_pkey;
};
} _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;
} _sifields;
} __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
#ifdef __ARCH_SI_TRAPNO
#define si_trapno _sifields._sigfault._trapno
#endif
#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_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 */
#ifdef __bfin__
# define ILL_ILLPARAOP 2
/* illegal opcode combine */
#endif
#define ILL_ILLOPN 2
/* illegal operand */
#define ILL_ILLADR 3
/* illegal addressing mode */
#define ILL_ILLTRP 4
/* illegal trap */
#ifdef __bfin__
# define ILL_ILLEXCPT 4
/* unrecoverable exception */
#endif
#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 */
#ifdef __bfin__
# define ILL_CPLB_VI 9
/* D/I CPLB protect violation */
# define ILL_CPLB_MISS 10
/* D/I CPLB miss */
# define ILL_CPLB_MULHIT 11
/* D/I CPLB multiple hit */
#endif
#ifdef __tile__
# define ILL_DBLFLT 9
/* double fault */
# define ILL_HARDWALL 10
/* user networks hardwall violation */
#endif
#ifdef __ia64__
# define ILL_BADIADDR 9
/* unimplemented instruction address */
# define __ILL_BREAK 10
/* illegal break */
# define __ILL_BNDMOD 11
/* bundle-update (modification) in progress */
#endif
#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 */
#ifdef __frv__
# define FPE_MDAOVF 9
/* media overflow */
#endif
#ifdef __ia64__
# 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 */
#endif
#define NSIGFPE 13
/*
* SIGSEGV si_codes
*/
#define SEGV_MAPERR 1
/* address not mapped to object */
#define SEGV_ACCERR 2
/* invalid permissions for mapped object */
#ifdef __bfin__
# define SEGV_STACKFLOW 3
/* stack overflow */
#else
# define SEGV_BNDERR 3
/* failed address bound checks */
#endif
#ifdef __ia64__
# define __SEGV_PSTKOVF 4
/* paragraph stack overflow */
#else
# define SEGV_PKUERR 4
/* failed protection key checks */
#endif
#define NSIGSEGV 4
/*
* 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 */
#ifdef __bfin__
# define BUS_OPFETCH 4
/* error from instruction fetch */
#else
/* hardware memory error consumed on a machine check: action required */
# define BUS_MCEERR_AR 4
#endif
/* 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 */
#ifdef __bfin__
# define TRAP_STEP 1
/* single-step breakpoint */
# define TRAP_TRACEFLOW 2
/* trace buffer overflow */
# define TRAP_WATCHPT 3
/* watchpoint match */
# define TRAP_ILLTRAP 4
/* illegal trap */
#endif
#define NSIGTRAP 4
/*
* There is an additional set of SIGTRAP si_codes used by ptrace
* that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
*/
/*
* 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 NSIGSYS 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 */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Howells | 675 | 67.43% | 1 | 5.26% |
| Eric W. Biedermann | 266 | 26.57% | 11 | 57.89% |
| Qiaowei Ren | 27 | 2.70% | 1 | 5.26% |
| Al Viro | 16 | 1.60% | 2 | 10.53% |
| Dave Hansen | 15 | 1.50% | 2 | 10.53% |
| Randy Dunlap | 1 | 0.10% | 1 | 5.26% |
| Greg Kroah-Hartman | 1 | 0.10% | 1 | 5.26% |
| Total | 1001 | 100.00% | 19 | 100.00% |
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