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Linux/arch/arm/include/uapi/asm/signal.h

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  1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2 #ifndef _UAPI_ASMARM_SIGNAL_H
  3 #define _UAPI_ASMARM_SIGNAL_H
  4 
  5 #include <linux/types.h>
  6 
  7 /* Avoid too many header ordering problems.  */
  8 struct siginfo;
  9 
 10 #ifndef __KERNEL__
 11 /* Here we must cater to libcs that poke about in kernel headers.  */
 12 
 13 #define NSIG            32
 14 typedef unsigned long sigset_t;
 15 
 16 #endif /* __KERNEL__ */
 17 
 18 #define SIGHUP           1
 19 #define SIGINT           2
 20 #define SIGQUIT          3
 21 #define SIGILL           4
 22 #define SIGTRAP          5
 23 #define SIGABRT          6
 24 #define SIGIOT           6
 25 #define SIGBUS           7
 26 #define SIGFPE           8
 27 #define SIGKILL          9
 28 #define SIGUSR1         10
 29 #define SIGSEGV         11
 30 #define SIGUSR2         12
 31 #define SIGPIPE         13
 32 #define SIGALRM         14
 33 #define SIGTERM         15
 34 #define SIGSTKFLT       16
 35 #define SIGCHLD         17
 36 #define SIGCONT         18
 37 #define SIGSTOP         19
 38 #define SIGTSTP         20
 39 #define SIGTTIN         21
 40 #define SIGTTOU         22
 41 #define SIGURG          23
 42 #define SIGXCPU         24
 43 #define SIGXFSZ         25
 44 #define SIGVTALRM       26
 45 #define SIGPROF         27
 46 #define SIGWINCH        28
 47 #define SIGIO           29
 48 #define SIGPOLL         SIGIO
 49 /*
 50 #define SIGLOST         29
 51 */
 52 #define SIGPWR          30
 53 #define SIGSYS          31
 54 #define SIGUNUSED       31
 55 
 56 /* These should not be considered constants from userland.  */
 57 #define SIGRTMIN        32
 58 #define SIGRTMAX        _NSIG
 59 
 60 #define SIGSWI          32
 61 
 62 /*
 63  * SA_FLAGS values:
 64  *
 65  * SA_NOCLDSTOP         flag to turn off SIGCHLD when children stop.
 66  * SA_NOCLDWAIT         flag on SIGCHLD to inhibit zombies.
 67  * SA_SIGINFO           deliver the signal with SIGINFO structs
 68  * SA_THIRTYTWO         delivers the signal in 32-bit mode, even if the task 
 69  *                      is running in 26-bit.
 70  * SA_ONSTACK           allows alternate signal stacks (see sigaltstack(2)).
 71  * SA_RESTART           flag to get restarting signals (which were the default long ago)
 72  * SA_NODEFER           prevents the current signal from being masked in the handler.
 73  * SA_RESETHAND         clears the handler when the signal is delivered.
 74  *
 75  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 76  * Unix names RESETHAND and NODEFER respectively.
 77  */
 78 #define SA_NOCLDSTOP    0x00000001
 79 #define SA_NOCLDWAIT    0x00000002
 80 #define SA_SIGINFO      0x00000004
 81 #define SA_THIRTYTWO    0x02000000
 82 #define SA_RESTORER     0x04000000
 83 #define SA_ONSTACK      0x08000000
 84 #define SA_RESTART      0x10000000
 85 #define SA_NODEFER      0x40000000
 86 #define SA_RESETHAND    0x80000000
 87 
 88 #define SA_NOMASK       SA_NODEFER
 89 #define SA_ONESHOT      SA_RESETHAND
 90 
 91 #define MINSIGSTKSZ     2048
 92 #define SIGSTKSZ        8192
 93 
 94 #include <asm-generic/signal-defs.h>
 95 
 96 #ifndef __KERNEL__
 97 /* Here we must cater to libcs that poke about in kernel headers.  */
 98 
 99 struct sigaction {
100         union {
101           __sighandler_t _sa_handler;
102           void (*_sa_sigaction)(int, struct siginfo *, void *);
103         } _u;
104         sigset_t sa_mask;
105         unsigned long sa_flags;
106         void (*sa_restorer)(void);
107 };
108 
109 #define sa_handler      _u._sa_handler
110 #define sa_sigaction    _u._sa_sigaction
111 
112 #endif /* __KERNEL__ */
113 
114 typedef struct sigaltstack {
115         void __user *ss_sp;
116         int ss_flags;
117         size_t ss_size;
118 } stack_t;
119 
120 
121 #endif /* _UAPI_ASMARM_SIGNAL_H */
122 

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