/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_GENERIC_SIGINFO_H
#define _ASM_GENERIC_SIGINFO_H
* 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.
#define __ARCH_SI_BAND_T long
#ifndef __ARCH_SI_CLOCK_T
#define __ARCH_SI_CLOCK_T __kernel_clock_t
#ifndef __ARCH_SI_ATTRIBUTES
#define __ARCH_SI_ATTRIBUTES
* RHEL8: The old and new siginfo structures have the same offsets for
* their fields. They are just constructed in different ways.
#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
#ifndef __ARCH_HAS_SWAPPED_SIGINFO
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
__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 */
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
__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;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
void *_addr; /* faulting insn/memory ref. */
int _trapno; /* TRAP # which caused the signal */
int _imm; /* immediate value for "break" */
unsigned int _flags; /* see ia64 si_flags */
unsigned long _isr; /* isr */
#define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \
sizeof(short) : __alignof__(void *))
* 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 */
char _dummy_bnd[__ADDR_BND_PKEY_PAD];
/* used when si_code=SEGV_PKUERR */
char _dummy_pkey[__ADDR_BND_PKEY_PAD];
__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
void *_call_addr; /* calling user insn */
int _syscall; /* triggering system call number */
unsigned int _arch; /* AUDIT_ARCH_* of syscall */
} __ARCH_SI_ATTRIBUTES siginfo_t;
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
__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 */
__kernel_pid_t _pid; /* sender's pid */
__kernel_uid32_t _uid; /* sender's uid */
__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;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
void *_addr; /* faulting insn/memory ref. */
int _trapno; /* TRAP # which caused the signal */
int _imm; /* immediate value for "break" */
unsigned int _flags; /* see ia64 si_flags */
unsigned long _isr; /* isr */
#define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \
sizeof(short) : __alignof__(void *))
* 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 */
char _dummy_bnd[__ADDR_BND_PKEY_PAD];
/* used when si_code=SEGV_PKUERR */
char _dummy_pkey[__ADDR_BND_PKEY_PAD];
__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
void *_call_addr; /* calling user insn */
int _syscall; /* triggering system call number */
unsigned int _arch; /* AUDIT_ARCH_* of syscall */
#ifndef __ARCH_HAS_SWAPPED_SIGINFO
union __sifields _sifields; \
union __sifields _sifields; \
#endif /* __ARCH_HAS_SWAPPED_SIGINFO */
int _si_pad[SI_MAX_SIZE/sizeof(int)];
} __ARCH_SI_ATTRIBUTES siginfo_t;
#endif /* __GENKSYMS__ */
* 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_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
* 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)
#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 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 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 */
# define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
# define SEGV_PKUERR 4 /* failed protection key checks */
#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 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 */
/* hardware memory error detected in process but not consumed: action optional*/
#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 */
* There is an additional set of SIGTRAP si_codes used by ptrace
* that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
#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 */
* 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 SYS_SECCOMP 1 /* seccomp triggered */
#define EMT_TAGOVF 1 /* tag overflow */
* 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))
#define SIGEV_MAX_SIZE 64
#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
typedef struct sigevent {
int _pad[SIGEV_PAD_SIZE];
void (*_function)(sigval_t);
void *_attribute; /* really pthread_attr_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 /* _ASM_GENERIC_SIGINFO_H */
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