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 */
99 * used when si_code=BUS_MCEERR_AR or
100 * used when si_code=BUS_MCEERR_AO
102 short _addr_lsb; /* LSB of the reported address */
103 /* used when si_code=SEGV_BNDERR */
109 /* used when si_code=SEGV_PKUERR */
119 __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
125 void __user *_call_addr; /* calling user insn */
126 int _syscall; /* triggering system call number */
127 unsigned int _arch; /* AUDIT_ARCH_* of syscall */
130 } __ARCH_SI_ATTRIBUTES siginfo_t;
133 * How these fields are to be accessed.
135 #define si_pid _sifields._kill._pid
136 #define si_uid _sifields._kill._uid
137 #define si_tid _sifields._timer._tid
138 #define si_overrun _sifields._timer._overrun
139 #define si_sys_private _sifields._timer._sys_private
140 #define si_status _sifields._sigchld._status
141 #define si_utime _sifields._sigchld._utime
142 #define si_stime _sifields._sigchld._stime
143 #define si_value _sifields._rt._sigval
144 #define si_int _sifields._rt._sigval.sival_int
145 #define si_ptr _sifields._rt._sigval.sival_ptr
146 #define si_addr _sifields._sigfault._addr
147 #ifdef __ARCH_SI_TRAPNO
148 #define si_trapno _sifields._sigfault._trapno
150 #define si_addr_lsb _sifields._sigfault._addr_lsb
151 #define si_lower _sifields._sigfault._addr_bnd._lower
152 #define si_upper _sifields._sigfault._addr_bnd._upper
153 #define si_pkey _sifields._sigfault._addr_pkey._pkey
154 #define si_band _sifields._sigpoll._band
155 #define si_fd _sifields._sigpoll._fd
156 #define si_call_addr _sifields._sigsys._call_addr
157 #define si_syscall _sifields._sigsys._syscall
158 #define si_arch _sifields._sigsys._arch
162 * Digital reserves positive values for kernel-generated signals.
164 #define SI_USER 0 /* sent by kill, sigsend, raise */
165 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
166 #define SI_QUEUE -1 /* sent by sigqueue */
167 #define SI_TIMER -2 /* sent by timer expiration */
168 #define SI_MESGQ -3 /* sent by real time mesq state change */
169 #define SI_ASYNCIO -4 /* sent by AIO completion */
170 #define SI_SIGIO -5 /* sent by queued SIGIO */
171 #define SI_TKILL -6 /* sent by tkill system call */
172 #define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
173 #define SI_ASYNCNL -60 /* sent by glibc async name lookup completion */
175 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
176 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
181 #define ILL_ILLOPC 1 /* illegal opcode */
182 #define ILL_ILLOPN 2 /* illegal operand */
183 #define ILL_ILLADR 3 /* illegal addressing mode */
184 #define ILL_ILLTRP 4 /* illegal trap */
185 #define ILL_PRVOPC 5 /* privileged opcode */
186 #define ILL_PRVREG 6 /* privileged register */
187 #define ILL_COPROC 7 /* coprocessor error */
188 #define ILL_BADSTK 8 /* internal stack error */
189 #define ILL_BADIADDR 9 /* unimplemented instruction address */
190 #define __ILL_BREAK 10 /* illegal break */
191 #define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */
197 #define FPE_INTDIV 1 /* integer divide by zero */
198 #define FPE_INTOVF 2 /* integer overflow */
199 #define FPE_FLTDIV 3 /* floating point divide by zero */
200 #define FPE_FLTOVF 4 /* floating point overflow */
201 #define FPE_FLTUND 5 /* floating point underflow */
202 #define FPE_FLTRES 6 /* floating point inexact result */
203 #define FPE_FLTINV 7 /* floating point invalid operation */
204 #define FPE_FLTSUB 8 /* subscript out of range */
205 #define __FPE_DECOVF 9 /* decimal overflow */
206 #define __FPE_DECDIV 10 /* decimal division by zero */
207 #define __FPE_DECERR 11 /* packed decimal error */
208 #define __FPE_INVASC 12 /* invalid ASCII digit */
209 #define __FPE_INVDEC 13 /* invalid decimal digit */
210 #define FPE_FLTUNK 14 /* undiagnosed floating-point exception */
216 #define SEGV_MAPERR 1 /* address not mapped to object */
217 #define SEGV_ACCERR 2 /* invalid permissions for mapped object */
218 #define SEGV_BNDERR 3 /* failed address bound checks */
220 # define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
222 # define SEGV_PKUERR 4 /* failed protection key checks */
224 #define SEGV_ACCADI 5 /* ADI not enabled for mapped object */
225 #define SEGV_ADIDERR 6 /* Disrupting MCD error */
226 #define SEGV_ADIPERR 7 /* Precise MCD exception */
232 #define BUS_ADRALN 1 /* invalid address alignment */
233 #define BUS_ADRERR 2 /* non-existent physical address */
234 #define BUS_OBJERR 3 /* object specific hardware error */
235 /* hardware memory error consumed on a machine check: action required */
236 #define BUS_MCEERR_AR 4
237 /* hardware memory error detected in process but not consumed: action optional*/
238 #define BUS_MCEERR_AO 5
244 #define TRAP_BRKPT 1 /* process breakpoint */
245 #define TRAP_TRACE 2 /* process trace trap */
246 #define TRAP_BRANCH 3 /* process taken branch trap */
247 #define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */
251 * There is an additional set of SIGTRAP si_codes used by ptrace
252 * that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
258 #define CLD_EXITED 1 /* child has exited */
259 #define CLD_KILLED 2 /* child was killed */
260 #define CLD_DUMPED 3 /* child terminated abnormally */
261 #define CLD_TRAPPED 4 /* traced child has trapped */
262 #define CLD_STOPPED 5 /* child has stopped */
263 #define CLD_CONTINUED 6 /* stopped child has continued */
267 * SIGPOLL (or any other signal without signal specific si_codes) si_codes
269 #define POLL_IN 1 /* data input available */
270 #define POLL_OUT 2 /* output buffers available */
271 #define POLL_MSG 3 /* input message available */
272 #define POLL_ERR 4 /* i/o error */
273 #define POLL_PRI 5 /* high priority input available */
274 #define POLL_HUP 6 /* device disconnected */
280 #define SYS_SECCOMP 1 /* seccomp triggered */
284 * sigevent definitions
286 * It seems likely that SIGEV_THREAD will have to be handled from
287 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
288 * thread manager then catches and does the appropriate nonsense.
289 * However, everything is written out here so as to not get lost.
291 #define SIGEV_SIGNAL 0 /* notify via signal */
292 #define SIGEV_NONE 1 /* other notification: meaningless */
293 #define SIGEV_THREAD 2 /* deliver via thread creation */
294 #define SIGEV_THREAD_ID 4 /* deliver to thread */
297 * This works because the alignment is ok on all current architectures
298 * but we leave open this being overridden in the future
300 #ifndef __ARCH_SIGEV_PREAMBLE_SIZE
301 #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
304 #define SIGEV_MAX_SIZE 64
305 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
308 typedef struct sigevent {
309 sigval_t sigev_value;
313 int _pad[SIGEV_PAD_SIZE];
317 void (*_function)(sigval_t);
318 void *_attribute; /* really pthread_attr_t */
323 #define sigev_notify_function _sigev_un._sigev_thread._function
324 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
325 #define sigev_notify_thread_id _sigev_un._tid
328 #endif /* _UAPI_ASM_GENERIC_SIGINFO_H */