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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
---|---|
2 | #ifndef _ASM_GENERIC_SIGINFO_H |
3 | #define _ASM_GENERIC_SIGINFO_H |
4 | |
5 | |
6 | #include <linux/types.h> |
7 | |
8 | typedef union sigval { |
9 | int sival_int; |
10 | void *sival_ptr; |
11 | } sigval_t; |
12 | |
13 | /* |
14 | * This is the size (including padding) of the part of the |
15 | * struct siginfo that is before the union. |
16 | */ |
17 | #ifndef __ARCH_SI_PREAMBLE_SIZE |
18 | #define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int)) |
19 | #endif |
20 | |
21 | #define SI_MAX_SIZE 128 |
22 | #ifndef SI_PAD_SIZE |
23 | #define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int)) |
24 | #endif |
25 | |
26 | /* |
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. |
30 | */ |
31 | #ifndef __ARCH_SI_BAND_T |
32 | #define __ARCH_SI_BAND_T long |
33 | #endif |
34 | |
35 | #ifndef __ARCH_SI_CLOCK_T |
36 | #define __ARCH_SI_CLOCK_T __kernel_clock_t |
37 | #endif |
38 | |
39 | #ifndef __ARCH_SI_ATTRIBUTES |
40 | #define __ARCH_SI_ATTRIBUTES |
41 | #endif |
42 | |
43 | typedef struct siginfo { |
44 | int si_signo; |
45 | #ifndef __ARCH_HAS_SWAPPED_SIGINFO |
46 | int si_errno; |
47 | int si_code; |
48 | #else |
49 | int si_code; |
50 | int si_errno; |
51 | #endif |
52 | |
53 | union { |
54 | int _pad[SI_PAD_SIZE]; |
55 | |
56 | /* kill() */ |
57 | struct { |
58 | __kernel_pid_t _pid; /* sender's pid */ |
59 | __kernel_uid32_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 | sigval_t _sigval; /* same as below */ |
67 | int _sys_private; /* not to be passed to user */ |
68 | } _timer; |
69 | |
70 | /* POSIX.1b signals */ |
71 | struct { |
72 | __kernel_pid_t _pid; /* sender's pid */ |
73 | __kernel_uid32_t _uid; /* sender's uid */ |
74 | sigval_t _sigval; |
75 | } _rt; |
76 | |
77 | /* SIGCHLD */ |
78 | struct { |
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; |
84 | } _sigchld; |
85 | |
86 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */ |
87 | struct { |
88 | void *_addr; /* faulting insn/memory ref. */ |
89 | #ifdef __ARCH_SI_TRAPNO |
90 | int _trapno; /* TRAP # which caused the signal */ |
91 | #endif |
92 | #ifdef __ia64__ |
93 | int _imm; /* immediate value for "break" */ |
94 | unsigned int _flags; /* see ia64 si_flags */ |
95 | unsigned long _isr; /* isr */ |
96 | #endif |
97 | |
98 | #define __ADDR_BND_PKEY_PAD (__alignof__(void *) < sizeof(short) ? \ |
99 | sizeof(short) : __alignof__(void *)) |
100 | union { |
101 | /* |
102 | * used when si_code=BUS_MCEERR_AR or |
103 | * used when si_code=BUS_MCEERR_AO |
104 | */ |
105 | short _addr_lsb; /* LSB of the reported address */ |
106 | /* used when si_code=SEGV_BNDERR */ |
107 | struct { |
108 | char _dummy_bnd[__ADDR_BND_PKEY_PAD]; |
109 | void *_lower; |
110 | void *_upper; |
111 | } _addr_bnd; |
112 | /* used when si_code=SEGV_PKUERR */ |
113 | struct { |
114 | char _dummy_pkey[__ADDR_BND_PKEY_PAD]; |
115 | __u32 _pkey; |
116 | } _addr_pkey; |
117 | }; |
118 | } _sigfault; |
119 | |
120 | /* SIGPOLL */ |
121 | struct { |
122 | __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ |
123 | int _fd; |
124 | } _sigpoll; |
125 | |
126 | /* SIGSYS */ |
127 | struct { |
128 | void *_call_addr; /* calling user insn */ |
129 | int _syscall; /* triggering system call number */ |
130 | unsigned int _arch; /* AUDIT_ARCH_* of syscall */ |
131 | } _sigsys; |
132 | } _sifields; |
133 | } __ARCH_SI_ATTRIBUTES siginfo_t; |
134 | |
135 | /* |
136 | * How these fields are to be accessed. |
137 | */ |
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 |
152 | #endif |
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 |
162 | |
163 | /* |
164 | * si_code values |
165 | * Digital reserves positive values for kernel-generated signals. |
166 | */ |
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 */ |
177 | |
178 | #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) |
179 | #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) |
180 | |
181 | /* |
182 | * SIGILL si_codes |
183 | */ |
184 | #define ILL_ILLOPC 1 /* illegal opcode */ |
185 | #define ILL_ILLOPN 2 /* illegal operand */ |
186 | #define ILL_ILLADR 3 /* illegal addressing mode */ |
187 | #define ILL_ILLTRP 4 /* illegal trap */ |
188 | #define ILL_PRVOPC 5 /* privileged opcode */ |
189 | #define ILL_PRVREG 6 /* privileged register */ |
190 | #define ILL_COPROC 7 /* coprocessor error */ |
191 | #define ILL_BADSTK 8 /* internal stack error */ |
192 | #define ILL_BADIADDR 9 /* unimplemented instruction address */ |
193 | #define __ILL_BREAK 10 /* illegal break */ |
194 | #define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */ |
195 | #define NSIGILL 11 |
196 | |
197 | /* |
198 | * SIGFPE si_codes |
199 | */ |
200 | #define FPE_INTDIV 1 /* integer divide by zero */ |
201 | #define FPE_INTOVF 2 /* integer overflow */ |
202 | #define FPE_FLTDIV 3 /* floating point divide by zero */ |
203 | #define FPE_FLTOVF 4 /* floating point overflow */ |
204 | #define FPE_FLTUND 5 /* floating point underflow */ |
205 | #define FPE_FLTRES 6 /* floating point inexact result */ |
206 | #define FPE_FLTINV 7 /* floating point invalid operation */ |
207 | #define FPE_FLTSUB 8 /* subscript out of range */ |
208 | #define __FPE_DECOVF 9 /* decimal overflow */ |
209 | #define __FPE_DECDIV 10 /* decimal division by zero */ |
210 | #define __FPE_DECERR 11 /* packed decimal error */ |
211 | #define __FPE_INVASC 12 /* invalid ASCII digit */ |
212 | #define __FPE_INVDEC 13 /* invalid decimal digit */ |
213 | #define FPE_FLTUNK 14 /* undiagnosed floating-point exception */ |
214 | #define FPE_CONDTRAP 15 /* trap on condition */ |
215 | #define NSIGFPE 15 |
216 | |
217 | /* |
218 | * SIGSEGV si_codes |
219 | */ |
220 | #define SEGV_MAPERR 1 /* address not mapped to object */ |
221 | #define SEGV_ACCERR 2 /* invalid permissions for mapped object */ |
222 | #define SEGV_BNDERR 3 /* failed address bound checks */ |
223 | #ifdef __ia64__ |
224 | # define __SEGV_PSTKOVF 4 /* paragraph stack overflow */ |
225 | #else |
226 | # define SEGV_PKUERR 4 /* failed protection key checks */ |
227 | #endif |
228 | #define SEGV_ACCADI 5 /* ADI not enabled for mapped object */ |
229 | #define SEGV_ADIDERR 6 /* Disrupting MCD error */ |
230 | #define SEGV_ADIPERR 7 /* Precise MCD exception */ |
231 | #define NSIGSEGV 7 |
232 | |
233 | /* |
234 | * SIGBUS si_codes |
235 | */ |
236 | #define BUS_ADRALN 1 /* invalid address alignment */ |
237 | #define BUS_ADRERR 2 /* non-existent physical address */ |
238 | #define BUS_OBJERR 3 /* object specific hardware error */ |
239 | /* hardware memory error consumed on a machine check: action required */ |
240 | #define BUS_MCEERR_AR 4 |
241 | /* hardware memory error detected in process but not consumed: action optional*/ |
242 | #define BUS_MCEERR_AO 5 |
243 | #define NSIGBUS 5 |
244 | |
245 | /* |
246 | * SIGTRAP si_codes |
247 | */ |
248 | #define TRAP_BRKPT 1 /* process breakpoint */ |
249 | #define TRAP_TRACE 2 /* process trace trap */ |
250 | #define TRAP_BRANCH 3 /* process taken branch trap */ |
251 | #define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */ |
252 | #define NSIGTRAP 4 |
253 | |
254 | /* |
255 | * There is an additional set of SIGTRAP si_codes used by ptrace |
256 | * that are of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP) |
257 | */ |
258 | |
259 | /* |
260 | * SIGCHLD si_codes |
261 | */ |
262 | #define CLD_EXITED 1 /* child has exited */ |
263 | #define CLD_KILLED 2 /* child was killed */ |
264 | #define CLD_DUMPED 3 /* child terminated abnormally */ |
265 | #define CLD_TRAPPED 4 /* traced child has trapped */ |
266 | #define CLD_STOPPED 5 /* child has stopped */ |
267 | #define CLD_CONTINUED 6 /* stopped child has continued */ |
268 | #define NSIGCHLD 6 |
269 | |
270 | /* |
271 | * SIGPOLL (or any other signal without signal specific si_codes) si_codes |
272 | */ |
273 | #define POLL_IN 1 /* data input available */ |
274 | #define POLL_OUT 2 /* output buffers available */ |
275 | #define POLL_MSG 3 /* input message available */ |
276 | #define POLL_ERR 4 /* i/o error */ |
277 | #define POLL_PRI 5 /* high priority input available */ |
278 | #define POLL_HUP 6 /* device disconnected */ |
279 | #define NSIGPOLL 6 |
280 | |
281 | /* |
282 | * SIGSYS si_codes |
283 | */ |
284 | #define SYS_SECCOMP 1 /* seccomp triggered */ |
285 | #define NSIGSYS 1 |
286 | |
287 | /* |
288 | * sigevent definitions |
289 | * |
290 | * It seems likely that SIGEV_THREAD will have to be handled from |
291 | * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the |
292 | * thread manager then catches and does the appropriate nonsense. |
293 | * However, everything is written out here so as to not get lost. |
294 | */ |
295 | #define SIGEV_SIGNAL 0 /* notify via signal */ |
296 | #define SIGEV_NONE 1 /* other notification: meaningless */ |
297 | #define SIGEV_THREAD 2 /* deliver via thread creation */ |
298 | #define SIGEV_THREAD_ID 4 /* deliver to thread */ |
299 | |
300 | /* |
301 | * This works because the alignment is ok on all current architectures |
302 | * but we leave open this being overridden in the future |
303 | */ |
304 | #ifndef __ARCH_SIGEV_PREAMBLE_SIZE |
305 | #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t)) |
306 | #endif |
307 | |
308 | #define SIGEV_MAX_SIZE 64 |
309 | #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \ |
310 | / sizeof(int)) |
311 | |
312 | typedef struct sigevent { |
313 | sigval_t sigev_value; |
314 | int sigev_signo; |
315 | int sigev_notify; |
316 | union { |
317 | int _pad[SIGEV_PAD_SIZE]; |
318 | int _tid; |
319 | |
320 | struct { |
321 | void (*_function)(sigval_t); |
322 | void *_attribute; /* really pthread_attr_t */ |
323 | } _sigev_thread; |
324 | } _sigev_un; |
325 | } sigevent_t; |
326 | |
327 | #define sigev_notify_function _sigev_un._sigev_thread._function |
328 | #define sigev_notify_attributes _sigev_un._sigev_thread._attribute |
329 | #define sigev_notify_thread_id _sigev_un._tid |
330 | |
331 | |
332 | #endif /* _ASM_GENERIC_SIGINFO_H */ |
333 |
Warning: That file was not part of the compilation database. It may have many parsing errors.