| #ifndef _ASM_GENERIC_SIGINFO_H |
| #define _ASM_GENERIC_SIGINFO_H |
| |
| |
| #include <linux/types.h> |
| |
| typedef union sigval { |
| int sival_int; |
| void *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 *_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 |
| |
| #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) |
| |
| /* |
| * 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 4 |
| |
| /* |
| * 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 |
| |
| |
| #endif |