1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_ASM_GENERIC_SIGINFO_H
3 #define _UAPI_ASM_GENERIC_SIGINFO_H
5 #include <linux/compiler.h>
6 #include <linux/types.h>
10 void __user *sival_ptr;
14 * This is the size (including padding) of the part of the
15 * struct siginfo that is before the union.
17 #ifndef __ARCH_SI_PREAMBLE_SIZE
18 #define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
21 #define SI_MAX_SIZE 128
23 #define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
27 * The default "si_band" type is "long", as specified by POSIX.
28 * However, some architectures want to override this to "int"
29 * for historical compatibility reasons, so we allow that.
31 #ifndef __ARCH_SI_BAND_T
32 #define __ARCH_SI_BAND_T long
35 #ifndef __ARCH_SI_CLOCK_T
36 #define __ARCH_SI_CLOCK_T __kernel_clock_t
39 #ifndef __ARCH_SI_ATTRIBUTES
40 #define __ARCH_SI_ATTRIBUTES
43 typedef struct siginfo {
45 #ifndef __ARCH_HAS_SWAPPED_SIGINFO
54 int _pad[SI_PAD_SIZE];
58 __kernel_pid_t _pid; /* sender's pid */
59 __kernel_uid32_t _uid; /* sender's uid */
64 __kernel_timer_t _tid; /* timer id */
65 int _overrun; /* overrun count */
66 sigval_t _sigval; /* same as below */
67 int _sys_private; /* not to be passed to user */
70 /* POSIX.1b signals */
72 __kernel_pid_t _pid; /* sender's pid */
73 __kernel_uid32_t _uid; /* sender's uid */
79 __kernel_pid_t _pid; /* which child */
80 __kernel_uid32_t _uid; /* sender's uid */
81 int _status; /* exit code */
82 __ARCH_SI_CLOCK_T _utime;
83 __ARCH_SI_CLOCK_T _stime;
86 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
88 void __user *_addr; /* faulting insn/memory ref. */
89 #ifdef __ARCH_SI_TRAPNO
90 int _trapno; /* TRAP # which caused the signal */
93 int _imm; /* immediate value for "break" */
94 unsigned int _flags; /* see ia64 si_flags */
95 unsigned long _isr; /* isr */
98 #define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \
99 sizeof(short) : __alignof__(void *))
102 * used when si_code=BUS_MCEERR_AR or
103 * used when si_code=BUS_MCEERR_AO
105 short _addr_lsb; /* LSB of the reported address */
106 /* used when si_code=SEGV_BNDERR */
108 char _dummy_bnd[__ADDR_BND_PKEY_PAD];
112 /* used when si_code=SEGV_PKUERR */
114 char _dummy_pkey[__ADDR_BND_PKEY_PAD];
122 __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
128 void __user *_call_addr; /* calling user insn */
129 int _syscall; /* triggering system call number */
130 unsigned int _arch; /* AUDIT_ARCH_* of syscall */
133 } __ARCH_SI_ATTRIBUTES siginfo_t;
136 * How these fields are to be accessed.
138 #define si_pid _sifields._kill._pid
139 #define si_uid _sifields._kill._uid
140 #define si_tid _sifields._timer._tid
141 #define si_overrun _sifields._timer._overrun
142 #define si_sys_private _sifields._timer._sys_private
143 #define si_status _sifields._sigchld._status
144 #define si_utime _sifields._sigchld._utime
145 #define si_stime _sifields._sigchld._stime
146 #define si_value _sifields._rt._sigval
147 #define si_int _sifields._rt._sigval.sival_int
148 #define si_ptr _sifields._rt._sigval.sival_ptr
149 #define si_addr _sifields._sigfault._addr
150 #ifdef __ARCH_SI_TRAPNO
151 #define si_trapno _sifields._sigfault._trapno
153 #define si_addr_lsb _sifields._sigfault._addr_lsb
154 #define si_lower _sifields._sigfault._addr_bnd._lower
155 #define si_upper _sifields._sigfault._addr_bnd._upper
156 #define si_pkey _sifields._sigfault._addr_pkey._pkey
157 #define si_band _sifields._sigpoll._band
158 #define si_fd _sifields._sigpoll._fd
159 #define si_call_addr _sifields._sigsys._call_addr
160 #define si_syscall _sifields._sigsys._syscall
161 #define si_arch _sifields._sigsys._arch
165 * Digital reserves positive values for kernel-generated signals.
167 #define SI_USER 0 /* sent by kill, sigsend, raise */
168 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
169 #define SI_QUEUE -1 /* sent by sigqueue */
170 #define SI_TIMER -2 /* sent by timer expiration */
171 #define SI_MESGQ -3 /* sent by real time mesq state change */
172 #define SI_ASYNCIO -4 /* sent by AIO completion */
173 #define SI_SIGIO -5 /* sent by queued SIGIO */
174 #define SI_TKILL -6 /* sent by tkill system call */
175 #define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
176 #define SI_ASYNCNL -60 /* sent by glibc async name lookup completion */
178 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
179 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
184 #define ILL_ILLOPC 1 /* illegal opcode */
186 # define ILL_ILLPARAOP 2 /* illegal opcode combine */
188 #define ILL_ILLOPN 2 /* illegal operand */
189 #define ILL_ILLADR 3 /* illegal addressing mode */
190 #define ILL_ILLTRP 4 /* illegal trap */
192 # define ILL_ILLEXCPT 4 /* unrecoverable exception */
194 #define ILL_PRVOPC 5 /* privileged opcode */
195 #define ILL_PRVREG 6 /* privileged register */
196 #define ILL_COPROC 7 /* coprocessor error */
197 #define ILL_BADSTK 8 /* internal stack error */
199 # define ILL_CPLB_VI 9 /* D/I CPLB protect violation */
200 # define ILL_CPLB_MISS 10 /* D/I CPLB miss */
201 # define ILL_CPLB_MULHIT 11 /* D/I CPLB multiple hit */
204 # define ILL_DBLFLT 9 /* double fault */
205 # define ILL_HARDWALL 10 /* user networks hardwall violation */
208 # define ILL_BADIADDR 9 /* unimplemented instruction address */
209 # define __ILL_BREAK 10 /* illegal break */
210 # define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */
217 #define FPE_INTDIV 1 /* integer divide by zero */
218 #define FPE_INTOVF 2 /* integer overflow */
219 #define FPE_FLTDIV 3 /* floating point divide by zero */
220 #define FPE_FLTOVF 4 /* floating point overflow */
221 #define FPE_FLTUND 5 /* floating point underflow */
222 #define FPE_FLTRES 6 /* floating point inexact result */
223 #define FPE_FLTINV 7 /* floating point invalid operation */
224 #define FPE_FLTSUB 8 /* subscript out of range */
226 # define FPE_MDAOVF 9 /* media overflow */
229 # define __FPE_DECOVF 9 /* decimal overflow */
230 # define __FPE_DECDIV 10 /* decimal division by zero */
231 # define __FPE_DECERR 11 /* packed decimal error */
232 # define __FPE_INVASC 12 /* invalid ASCII digit */
233 # define __FPE_INVDEC 13 /* invalid decimal digit */
235 #define FPE_FLTUNK 14 /* undiagnosed floating-point exception */
241 #define SEGV_MAPERR 1 /* address not mapped to object */
242 #define SEGV_ACCERR 2 /* invalid permissions for mapped object */
244 # define SEGV_STACKFLOW 3 /* stack overflow */
246 # define SEGV_BNDERR 3 /* failed address bound checks */
249 # define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
251 # define SEGV_PKUERR 4 /* failed protection key checks */
258 #define BUS_ADRALN 1 /* invalid address alignment */
259 #define BUS_ADRERR 2 /* non-existent physical address */
260 #define BUS_OBJERR 3 /* object specific hardware error */
262 # define BUS_OPFETCH 4 /* error from instruction fetch */
264 /* hardware memory error consumed on a machine check: action required */
265 # define BUS_MCEERR_AR 4
267 /* hardware memory error detected in process but not consumed: action optional*/
268 #define BUS_MCEERR_AO 5
274 #define TRAP_BRKPT 1 /* process breakpoint */
275 #define TRAP_TRACE 2 /* process trace trap */
276 #define TRAP_BRANCH 3 /* process taken branch trap */
277 #define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */
279 # define TRAP_STEP 1 /* single-step breakpoint */
280 # define TRAP_TRACEFLOW 2 /* trace buffer overflow */
281 # define TRAP_WATCHPT 3 /* watchpoint match */
282 # define TRAP_ILLTRAP 4 /* illegal trap */
287 * There is an additional set of SIGTRAP si_codes used by ptrace
288 * that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
294 #define CLD_EXITED 1 /* child has exited */
295 #define CLD_KILLED 2 /* child was killed */
296 #define CLD_DUMPED 3 /* child terminated abnormally */
297 #define CLD_TRAPPED 4 /* traced child has trapped */
298 #define CLD_STOPPED 5 /* child has stopped */
299 #define CLD_CONTINUED 6 /* stopped child has continued */
303 * SIGPOLL (or any other signal without signal specific si_codes) si_codes
305 #define POLL_IN 1 /* data input available */
306 #define POLL_OUT 2 /* output buffers available */
307 #define POLL_MSG 3 /* input message available */
308 #define POLL_ERR 4 /* i/o error */
309 #define POLL_PRI 5 /* high priority input available */
310 #define POLL_HUP 6 /* device disconnected */
316 #define SYS_SECCOMP 1 /* seccomp triggered */
320 * sigevent definitions
322 * It seems likely that SIGEV_THREAD will have to be handled from
323 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
324 * thread manager then catches and does the appropriate nonsense.
325 * However, everything is written out here so as to not get lost.
327 #define SIGEV_SIGNAL 0 /* notify via signal */
328 #define SIGEV_NONE 1 /* other notification: meaningless */
329 #define SIGEV_THREAD 2 /* deliver via thread creation */
330 #define SIGEV_THREAD_ID 4 /* deliver to thread */
333 * This works because the alignment is ok on all current architectures
334 * but we leave open this being overridden in the future
336 #ifndef __ARCH_SIGEV_PREAMBLE_SIZE
337 #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
340 #define SIGEV_MAX_SIZE 64
341 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
344 typedef struct sigevent {
345 sigval_t sigev_value;
349 int _pad[SIGEV_PAD_SIZE];
353 void (*_function)(sigval_t);
354 void *_attribute; /* really pthread_attr_t */
359 #define sigev_notify_function _sigev_un._sigev_thread._function
360 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
361 #define sigev_notify_thread_id _sigev_un._tid
364 #endif /* _UAPI_ASM_GENERIC_SIGINFO_H */