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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
8a1ab315 DH |
2 | #ifndef _UAPI_ASM_GENERIC_SIGINFO_H |
3 | #define _UAPI_ASM_GENERIC_SIGINFO_H | |
4 | ||
5 | #include <linux/compiler.h> | |
6 | #include <linux/types.h> | |
7 | ||
8 | typedef union sigval { | |
9 | int sival_int; | |
10 | void __user *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 | #ifndef __ARCH_SI_UID_T | |
27 | #define __ARCH_SI_UID_T __kernel_uid32_t | |
28 | #endif | |
29 | ||
30 | /* | |
31 | * The default "si_band" type is "long", as specified by POSIX. | |
32 | * However, some architectures want to override this to "int" | |
33 | * for historical compatibility reasons, so we allow that. | |
34 | */ | |
35 | #ifndef __ARCH_SI_BAND_T | |
36 | #define __ARCH_SI_BAND_T long | |
37 | #endif | |
38 | ||
39 | #ifndef __ARCH_SI_CLOCK_T | |
40 | #define __ARCH_SI_CLOCK_T __kernel_clock_t | |
41 | #endif | |
42 | ||
43 | #ifndef __ARCH_SI_ATTRIBUTES | |
44 | #define __ARCH_SI_ATTRIBUTES | |
45 | #endif | |
46 | ||
47 | #ifndef HAVE_ARCH_SIGINFO_T | |
48 | ||
49 | typedef struct siginfo { | |
50 | int si_signo; | |
51 | int si_errno; | |
52 | int si_code; | |
53 | ||
54 | union { | |
55 | int _pad[SI_PAD_SIZE]; | |
56 | ||
57 | /* kill() */ | |
58 | struct { | |
59 | __kernel_pid_t _pid; /* sender's pid */ | |
60 | __ARCH_SI_UID_T _uid; /* sender's uid */ | |
61 | } _kill; | |
62 | ||
63 | /* POSIX.1b timers */ | |
64 | struct { | |
65 | __kernel_timer_t _tid; /* timer id */ | |
66 | int _overrun; /* overrun count */ | |
67 | char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)]; | |
68 | sigval_t _sigval; /* same as below */ | |
69 | int _sys_private; /* not to be passed to user */ | |
70 | } _timer; | |
71 | ||
72 | /* POSIX.1b signals */ | |
73 | struct { | |
74 | __kernel_pid_t _pid; /* sender's pid */ | |
75 | __ARCH_SI_UID_T _uid; /* sender's uid */ | |
76 | sigval_t _sigval; | |
77 | } _rt; | |
78 | ||
79 | /* SIGCHLD */ | |
80 | struct { | |
81 | __kernel_pid_t _pid; /* which child */ | |
82 | __ARCH_SI_UID_T _uid; /* sender's uid */ | |
83 | int _status; /* exit code */ | |
84 | __ARCH_SI_CLOCK_T _utime; | |
85 | __ARCH_SI_CLOCK_T _stime; | |
86 | } _sigchld; | |
87 | ||
88 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ | |
89 | struct { | |
90 | void __user *_addr; /* faulting insn/memory ref. */ | |
91 | #ifdef __ARCH_SI_TRAPNO | |
92 | int _trapno; /* TRAP # which caused the signal */ | |
93 | #endif | |
94 | short _addr_lsb; /* LSB of the reported address */ | |
cd0ea35f DH |
95 | union { |
96 | /* used when si_code=SEGV_BNDERR */ | |
97 | struct { | |
98 | void __user *_lower; | |
99 | void __user *_upper; | |
100 | } _addr_bnd; | |
101 | /* used when si_code=SEGV_PKUERR */ | |
49cd53bf | 102 | __u32 _pkey; |
cd0ea35f | 103 | }; |
8a1ab315 DH |
104 | } _sigfault; |
105 | ||
106 | /* SIGPOLL */ | |
107 | struct { | |
108 | __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ | |
109 | int _fd; | |
110 | } _sigpoll; | |
111 | ||
112 | /* SIGSYS */ | |
113 | struct { | |
114 | void __user *_call_addr; /* calling user insn */ | |
115 | int _syscall; /* triggering system call number */ | |
116 | unsigned int _arch; /* AUDIT_ARCH_* of syscall */ | |
117 | } _sigsys; | |
118 | } _sifields; | |
119 | } __ARCH_SI_ATTRIBUTES siginfo_t; | |
120 | ||
121 | /* If the arch shares siginfo, then it has SIGSYS. */ | |
122 | #define __ARCH_SIGSYS | |
123 | #endif | |
124 | ||
125 | /* | |
126 | * How these fields are to be accessed. | |
127 | */ | |
128 | #define si_pid _sifields._kill._pid | |
129 | #define si_uid _sifields._kill._uid | |
130 | #define si_tid _sifields._timer._tid | |
131 | #define si_overrun _sifields._timer._overrun | |
132 | #define si_sys_private _sifields._timer._sys_private | |
133 | #define si_status _sifields._sigchld._status | |
134 | #define si_utime _sifields._sigchld._utime | |
135 | #define si_stime _sifields._sigchld._stime | |
136 | #define si_value _sifields._rt._sigval | |
137 | #define si_int _sifields._rt._sigval.sival_int | |
138 | #define si_ptr _sifields._rt._sigval.sival_ptr | |
139 | #define si_addr _sifields._sigfault._addr | |
140 | #ifdef __ARCH_SI_TRAPNO | |
141 | #define si_trapno _sifields._sigfault._trapno | |
142 | #endif | |
143 | #define si_addr_lsb _sifields._sigfault._addr_lsb | |
ee1b58d3 QR |
144 | #define si_lower _sifields._sigfault._addr_bnd._lower |
145 | #define si_upper _sifields._sigfault._addr_bnd._upper | |
cd0ea35f | 146 | #define si_pkey _sifields._sigfault._pkey |
8a1ab315 DH |
147 | #define si_band _sifields._sigpoll._band |
148 | #define si_fd _sifields._sigpoll._fd | |
149 | #ifdef __ARCH_SIGSYS | |
150 | #define si_call_addr _sifields._sigsys._call_addr | |
151 | #define si_syscall _sifields._sigsys._syscall | |
152 | #define si_arch _sifields._sigsys._arch | |
153 | #endif | |
154 | ||
8a1ab315 DH |
155 | /* |
156 | * si_code values | |
157 | * Digital reserves positive values for kernel-generated signals. | |
158 | */ | |
159 | #define SI_USER 0 /* sent by kill, sigsend, raise */ | |
160 | #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ | |
161 | #define SI_QUEUE -1 /* sent by sigqueue */ | |
cc731525 EB |
162 | #define SI_TIMER -2 /* sent by timer expiration */ |
163 | #define SI_MESGQ -3 /* sent by real time mesq state change */ | |
8a1ab315 | 164 | #define SI_ASYNCIO -4 /* sent by AIO completion */ |
cc731525 | 165 | #define SI_SIGIO -5 /* sent by queued SIGIO */ |
8a1ab315 DH |
166 | #define SI_TKILL -6 /* sent by tkill system call */ |
167 | #define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */ | |
168 | ||
169 | #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) | |
170 | #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) | |
171 | ||
172 | /* | |
173 | * SIGILL si_codes | |
174 | */ | |
cc731525 EB |
175 | #define ILL_ILLOPC 1 /* illegal opcode */ |
176 | #define ILL_ILLOPN 2 /* illegal operand */ | |
177 | #define ILL_ILLADR 3 /* illegal addressing mode */ | |
178 | #define ILL_ILLTRP 4 /* illegal trap */ | |
179 | #define ILL_PRVOPC 5 /* privileged opcode */ | |
180 | #define ILL_PRVREG 6 /* privileged register */ | |
181 | #define ILL_COPROC 7 /* coprocessor error */ | |
182 | #define ILL_BADSTK 8 /* internal stack error */ | |
8a1ab315 DH |
183 | #define NSIGILL 8 |
184 | ||
185 | /* | |
186 | * SIGFPE si_codes | |
187 | */ | |
cc731525 EB |
188 | #define FPE_INTDIV 1 /* integer divide by zero */ |
189 | #define FPE_INTOVF 2 /* integer overflow */ | |
190 | #define FPE_FLTDIV 3 /* floating point divide by zero */ | |
191 | #define FPE_FLTOVF 4 /* floating point overflow */ | |
192 | #define FPE_FLTUND 5 /* floating point underflow */ | |
193 | #define FPE_FLTRES 6 /* floating point inexact result */ | |
194 | #define FPE_FLTINV 7 /* floating point invalid operation */ | |
195 | #define FPE_FLTSUB 8 /* subscript out of range */ | |
8a1ab315 DH |
196 | #define NSIGFPE 8 |
197 | ||
198 | /* | |
199 | * SIGSEGV si_codes | |
200 | */ | |
cc731525 EB |
201 | #define SEGV_MAPERR 1 /* address not mapped to object */ |
202 | #define SEGV_ACCERR 2 /* invalid permissions for mapped object */ | |
203 | #define SEGV_BNDERR 3 /* failed address bound checks */ | |
204 | #define SEGV_PKUERR 4 /* failed protection key checks */ | |
cd0ea35f | 205 | #define NSIGSEGV 4 |
8a1ab315 DH |
206 | |
207 | /* | |
208 | * SIGBUS si_codes | |
209 | */ | |
cc731525 EB |
210 | #define BUS_ADRALN 1 /* invalid address alignment */ |
211 | #define BUS_ADRERR 2 /* non-existent physical address */ | |
212 | #define BUS_OBJERR 3 /* object specific hardware error */ | |
8a1ab315 | 213 | /* hardware memory error consumed on a machine check: action required */ |
cc731525 | 214 | #define BUS_MCEERR_AR 4 |
8a1ab315 | 215 | /* hardware memory error detected in process but not consumed: action optional*/ |
cc731525 | 216 | #define BUS_MCEERR_AO 5 |
8a1ab315 DH |
217 | #define NSIGBUS 5 |
218 | ||
219 | /* | |
220 | * SIGTRAP si_codes | |
221 | */ | |
cc731525 EB |
222 | #define TRAP_BRKPT 1 /* process breakpoint */ |
223 | #define TRAP_TRACE 2 /* process trace trap */ | |
224 | #define TRAP_BRANCH 3 /* process taken branch trap */ | |
225 | #define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */ | |
8a1ab315 DH |
226 | #define NSIGTRAP 4 |
227 | ||
228 | /* | |
229 | * SIGCHLD si_codes | |
230 | */ | |
cc731525 EB |
231 | #define CLD_EXITED 1 /* child has exited */ |
232 | #define CLD_KILLED 2 /* child was killed */ | |
233 | #define CLD_DUMPED 3 /* child terminated abnormally */ | |
234 | #define CLD_TRAPPED 4 /* traced child has trapped */ | |
235 | #define CLD_STOPPED 5 /* child has stopped */ | |
236 | #define CLD_CONTINUED 6 /* stopped child has continued */ | |
8a1ab315 DH |
237 | #define NSIGCHLD 6 |
238 | ||
239 | /* | |
d08477aa | 240 | * SIGPOLL (or any other signal without signal specific si_codes) si_codes |
8a1ab315 | 241 | */ |
cc731525 EB |
242 | #define POLL_IN 1 /* data input available */ |
243 | #define POLL_OUT 2 /* output buffers available */ | |
244 | #define POLL_MSG 3 /* input message available */ | |
245 | #define POLL_ERR 4 /* i/o error */ | |
246 | #define POLL_PRI 5 /* high priority input available */ | |
247 | #define POLL_HUP 6 /* device disconnected */ | |
8a1ab315 DH |
248 | #define NSIGPOLL 6 |
249 | ||
250 | /* | |
251 | * SIGSYS si_codes | |
252 | */ | |
cc731525 EB |
253 | #define SYS_SECCOMP 1 /* seccomp triggered */ |
254 | #define NSIGSYS 1 | |
8a1ab315 DH |
255 | |
256 | /* | |
257 | * sigevent definitions | |
258 | * | |
259 | * It seems likely that SIGEV_THREAD will have to be handled from | |
260 | * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the | |
261 | * thread manager then catches and does the appropriate nonsense. | |
262 | * However, everything is written out here so as to not get lost. | |
263 | */ | |
264 | #define SIGEV_SIGNAL 0 /* notify via signal */ | |
265 | #define SIGEV_NONE 1 /* other notification: meaningless */ | |
266 | #define SIGEV_THREAD 2 /* deliver via thread creation */ | |
267 | #define SIGEV_THREAD_ID 4 /* deliver to thread */ | |
268 | ||
269 | /* | |
270 | * This works because the alignment is ok on all current architectures | |
271 | * but we leave open this being overridden in the future | |
272 | */ | |
273 | #ifndef __ARCH_SIGEV_PREAMBLE_SIZE | |
274 | #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t)) | |
275 | #endif | |
276 | ||
277 | #define SIGEV_MAX_SIZE 64 | |
278 | #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \ | |
279 | / sizeof(int)) | |
280 | ||
281 | typedef struct sigevent { | |
282 | sigval_t sigev_value; | |
283 | int sigev_signo; | |
284 | int sigev_notify; | |
285 | union { | |
286 | int _pad[SIGEV_PAD_SIZE]; | |
287 | int _tid; | |
288 | ||
289 | struct { | |
290 | void (*_function)(sigval_t); | |
291 | void *_attribute; /* really pthread_attr_t */ | |
292 | } _sigev_thread; | |
293 | } _sigev_un; | |
294 | } sigevent_t; | |
295 | ||
296 | #define sigev_notify_function _sigev_un._sigev_thread._function | |
297 | #define sigev_notify_attributes _sigev_un._sigev_thread._attribute | |
298 | #define sigev_notify_thread_id _sigev_un._tid | |
299 | ||
300 | ||
301 | #endif /* _UAPI_ASM_GENERIC_SIGINFO_H */ |