Green shading in the line number column means the source is part of the translation unit, red means it is conditionally excluded. Highlighted line numbers link to the translation unit page. Highlighted macros link to the macro page.
1: #ifndef _UAPI_ASM_GENERIC_SIGINFO_H 2: #define _UAPI_ASM_GENERIC_SIGINFO_H 3: 4: #include <linux/compiler.h> 5: #include <linux/types.h> 6: 7: typedef union sigval { 8: int sival_int; 9: void __user *sival_ptr; 10: } sigval_t; 11: 12: /* 13: * This is the size (including padding) of the part of the 14: * struct siginfo that is before the union. 15: */ 16: #ifndef __ARCH_SI_PREAMBLE_SIZE 17: #define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int)) 18: #endif 19: 20: #define SI_MAX_SIZE 128 21: #ifndef SI_PAD_SIZE 22: #define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int)) 23: #endif 24: 25: #ifndef __ARCH_SI_UID_T 26: #define __ARCH_SI_UID_T __kernel_uid32_t 27: #endif 28: 29: /* 30: * The default "si_band" type is "long", as specified by POSIX. 31: * However, some architectures want to override this to "int" 32: * for historical compatibility reasons, so we allow that. 33: */ 34: #ifndef __ARCH_SI_BAND_T 35: #define __ARCH_SI_BAND_T long 36: #endif 37: 38: #ifndef __ARCH_SI_CLOCK_T 39: #define __ARCH_SI_CLOCK_T __kernel_clock_t 40: #endif 41: 42: #ifndef __ARCH_SI_ATTRIBUTES 43: #define __ARCH_SI_ATTRIBUTES 44: #endif 45: 46: #ifndef HAVE_ARCH_SIGINFO_T 47: 48: typedef struct siginfo { 49: int si_signo; 50: int si_errno; 51: int si_code; 52: 53: union { 54: int _pad[SI_PAD_SIZE]; 55: 56: /* kill() */ 57: struct { 58: __kernel_pid_t _pid; /* sender's pid */ 59: __ARCH_SI_UID_T _uid; /* sender's uid */ 60: } _kill; 61: 62: /* POSIX.1b timers */ 63: struct { 64: __kernel_timer_t _tid; /* timer id */ 65: int _overrun; /* overrun count */ 66: char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)]; 67: sigval_t _sigval; /* same as below */ 68: int _sys_private; /* not to be passed to user */ 69: } _timer; 70: 71: /* POSIX.1b signals */ 72: struct { 73: __kernel_pid_t _pid; /* sender's pid */ 74: __ARCH_SI_UID_T _uid; /* sender's uid */ 75: sigval_t _sigval; 76: } _rt; 77: 78: /* SIGCHLD */ 79: struct { 80: __kernel_pid_t _pid; /* which child */ 81: __ARCH_SI_UID_T _uid; /* sender's uid */ 82: int _status; /* exit code */ 83: __ARCH_SI_CLOCK_T _utime; 84: __ARCH_SI_CLOCK_T _stime; 85: } _sigchld; 86: 87: /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 88: struct { 89: void __user *_addr; /* faulting insn/memory ref. */ 90: #ifdef __ARCH_SI_TRAPNO 91: int _trapno; /* TRAP # which caused the signal */ 92: #endif 93: short _addr_lsb; /* LSB of the reported address */ 94: } _sigfault; 95: 96: /* SIGPOLL */ 97: struct { 98: __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 99: int _fd; 100: } _sigpoll; 101: 102: /* SIGSYS */ 103: struct { 104: void __user *_call_addr; /* calling user insn */ 105: int _syscall; /* triggering system call number */ 106: unsigned int _arch; /* AUDIT_ARCH_* of syscall */ 107: } _sigsys; 108: } _sifields; 109: } __ARCH_SI_ATTRIBUTES siginfo_t; 110: 111: /* If the arch shares siginfo, then it has SIGSYS. */ 112: #define __ARCH_SIGSYS 113: #endif 114: 115: /* 116: * How these fields are to be accessed. 117: */ 118: #define si_pid _sifields._kill._pid 119: #define si_uid _sifields._kill._uid 120: #define si_tid _sifields._timer._tid 121: #define si_overrun _sifields._timer._overrun 122: #define si_sys_private _sifields._timer._sys_private 123: #define si_status _sifields._sigchld._status 124: #define si_utime _sifields._sigchld._utime 125: #define si_stime _sifields._sigchld._stime 126: #define si_value _sifields._rt._sigval 127: #define si_int _sifields._rt._sigval.sival_int 128: #define si_ptr _sifields._rt._sigval.sival_ptr 129: #define si_addr _sifields._sigfault._addr 130: #ifdef __ARCH_SI_TRAPNO 131: #define si_trapno _sifields._sigfault._trapno 132: #endif 133: #define si_addr_lsb _sifields._sigfault._addr_lsb 134: #define si_band _sifields._sigpoll._band 135: #define si_fd _sifields._sigpoll._fd 136: #ifdef __ARCH_SIGSYS 137: #define si_call_addr _sifields._sigsys._call_addr 138: #define si_syscall _sifields._sigsys._syscall 139: #define si_arch _sifields._sigsys._arch 140: #endif 141: 142: #ifndef __KERNEL__ 143: #define __SI_KILL 0 144: #define __SI_TIMER 0 145: #define __SI_POLL 0 146: #define __SI_FAULT 0 147: #define __SI_CHLD 0 148: #define __SI_RT 0 149: #define __SI_MESGQ 0 150: #define __SI_SYS 0 151: #define __SI_CODE(T,N) (N) 152: #endif 153: 154: /* 155: * si_code values 156: * Digital reserves positive values for kernel-generated signals. 157: */ 158: #define SI_USER 0 /* sent by kill, sigsend, raise */ 159: #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ 160: #define SI_QUEUE -1 /* sent by sigqueue */ 161: #define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */ 162: #define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */ 163: #define SI_ASYNCIO -4 /* sent by AIO completion */ 164: #define SI_SIGIO -5 /* sent by queued SIGIO */ 165: #define SI_TKILL -6 /* sent by tkill system call */ 166: #define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */ 167: 168: #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) 169: #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) 170: 171: /* 172: * SIGILL si_codes 173: */ 174: #define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */ 175: #define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */ 176: #define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */ 177: #define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */ 178: #define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */ 179: #define ILL_PRVREG (__SI_FAULT|6) /* privileged register */ 180: #define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */ 181: #define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */ 182: #define NSIGILL 8 183: 184: /* 185: * SIGFPE si_codes 186: */ 187: #define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */ 188: #define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */ 189: #define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */ 190: #define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */ 191: #define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */ 192: #define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */ 193: #define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */ 194: #define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */ 195: #define NSIGFPE 8 196: 197: /* 198: * SIGSEGV si_codes 199: */ 200: #define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */ 201: #define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */ 202: #define NSIGSEGV 2 203: 204: /* 205: * SIGBUS si_codes 206: */ 207: #define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */ 208: #define BUS_ADRERR (__SI_FAULT|2) /* non-existent physical address */ 209: #define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */ 210: /* hardware memory error consumed on a machine check: action required */ 211: #define BUS_MCEERR_AR (__SI_FAULT|4) 212: /* hardware memory error detected in process but not consumed: action optional*/ 213: #define BUS_MCEERR_AO (__SI_FAULT|5) 214: #define NSIGBUS 5 215: 216: /* 217: * SIGTRAP si_codes 218: */ 219: #define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */ 220: #define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */ 221: #define TRAP_BRANCH (__SI_FAULT|3) /* process taken branch trap */ 222: #define TRAP_HWBKPT (__SI_FAULT|4) /* hardware breakpoint/watchpoint */ 223: #define NSIGTRAP 4 224: 225: /* 226: * SIGCHLD si_codes 227: */ 228: #define CLD_EXITED (__SI_CHLD|1) /* child has exited */ 229: #define CLD_KILLED (__SI_CHLD|2) /* child was killed */ 230: #define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */ 231: #define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */ 232: #define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */ 233: #define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */ 234: #define NSIGCHLD 6 235: 236: /* 237: * SIGPOLL si_codes 238: */ 239: #define POLL_IN (__SI_POLL|1) /* data input available */ 240: #define POLL_OUT (__SI_POLL|2) /* output buffers available */ 241: #define POLL_MSG (__SI_POLL|3) /* input message available */ 242: #define POLL_ERR (__SI_POLL|4) /* i/o error */ 243: #define POLL_PRI (__SI_POLL|5) /* high priority input available */ 244: #define POLL_HUP (__SI_POLL|6) /* device disconnected */ 245: #define NSIGPOLL 6 246: 247: /* 248: * SIGSYS si_codes 249: */ 250: #define SYS_SECCOMP (__SI_SYS|1) /* seccomp triggered */ 251: #define NSIGSYS 1 252: 253: /* 254: * sigevent definitions 255: * 256: * It seems likely that SIGEV_THREAD will have to be handled from 257: * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the 258: * thread manager then catches and does the appropriate nonsense. 259: * However, everything is written out here so as to not get lost. 260: */ 261: #define SIGEV_SIGNAL 0 /* notify via signal */ 262: #define SIGEV_NONE 1 /* other notification: meaningless */ 263: #define SIGEV_THREAD 2 /* deliver via thread creation */ 264: #define SIGEV_THREAD_ID 4 /* deliver to thread */ 265: 266: /* 267: * This works because the alignment is ok on all current architectures 268: * but we leave open this being overridden in the future 269: */ 270: #ifndef __ARCH_SIGEV_PREAMBLE_SIZE 271: #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t)) 272: #endif 273: 274: #define SIGEV_MAX_SIZE 64 275: #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \ 276: / sizeof(int)) 277: 278: typedef struct sigevent { 279: sigval_t sigev_value; 280: int sigev_signo; 281: int sigev_notify; 282: union { 283: int _pad[SIGEV_PAD_SIZE]; 284: int _tid; 285: 286: struct { 287: void (*_function)(sigval_t); 288: void *_attribute; /* really pthread_attr_t */ 289: } _sigev_thread; 290: } _sigev_un; 291: } sigevent_t; 292: 293: #define sigev_notify_function _sigev_un._sigev_thread._function 294: #define sigev_notify_attributes _sigev_un._sigev_thread._attribute 295: #define sigev_notify_thread_id _sigev_un._tid 296: 297: 298: #endif /* _UAPI_ASM_GENERIC_SIGINFO_H */ 299: