361 lines
11 KiB
C
361 lines
11 KiB
C
/* 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 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 __ia64__
|
|
int _imm; /* immediate value for "break" */
|
|
unsigned int _flags; /* see ia64 si_flags */
|
|
unsigned long _isr; /* isr */
|
|
#endif
|
|
|
|
#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 NSIGSEGV 9
|
|
|
|
/*
|
|
* 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 */
|