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TOMOYO Linux Cross Reference
Linux/arch/x86/include/uapi/asm/signal.h

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  1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2 #ifndef _UAPI_ASM_X86_SIGNAL_H
  3 #define _UAPI_ASM_X86_SIGNAL_H
  4 
  5 #ifndef __ASSEMBLY__
  6 #include <linux/types.h>
  7 #include <linux/time.h>
  8 #include <linux/compiler.h>
  9 
 10 /* Avoid too many header ordering problems.  */
 11 struct siginfo;
 12 
 13 #ifndef __KERNEL__
 14 /* Here we must cater to libcs that poke about in kernel headers.  */
 15 
 16 #define NSIG            32
 17 typedef unsigned long sigset_t;
 18 
 19 #endif /* __KERNEL__ */
 20 #endif /* __ASSEMBLY__ */
 21 
 22 
 23 #define SIGHUP           1
 24 #define SIGINT           2
 25 #define SIGQUIT          3
 26 #define SIGILL           4
 27 #define SIGTRAP          5
 28 #define SIGABRT          6
 29 #define SIGIOT           6
 30 #define SIGBUS           7
 31 #define SIGFPE           8
 32 #define SIGKILL          9
 33 #define SIGUSR1         10
 34 #define SIGSEGV         11
 35 #define SIGUSR2         12
 36 #define SIGPIPE         13
 37 #define SIGALRM         14
 38 #define SIGTERM         15
 39 #define SIGSTKFLT       16
 40 #define SIGCHLD         17
 41 #define SIGCONT         18
 42 #define SIGSTOP         19
 43 #define SIGTSTP         20
 44 #define SIGTTIN         21
 45 #define SIGTTOU         22
 46 #define SIGURG          23
 47 #define SIGXCPU         24
 48 #define SIGXFSZ         25
 49 #define SIGVTALRM       26
 50 #define SIGPROF         27
 51 #define SIGWINCH        28
 52 #define SIGIO           29
 53 #define SIGPOLL         SIGIO
 54 /*
 55 #define SIGLOST         29
 56 */
 57 #define SIGPWR          30
 58 #define SIGSYS          31
 59 #define SIGUNUSED       31
 60 
 61 /* These should not be considered constants from userland.  */
 62 #define SIGRTMIN        32
 63 #define SIGRTMAX        _NSIG
 64 
 65 /*
 66  * SA_FLAGS values:
 67  *
 68  * SA_ONSTACK indicates that a registered stack_t will be used.
 69  * SA_RESTART flag to get restarting signals (which were the default long ago)
 70  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 71  * SA_RESETHAND clears the handler when the signal is delivered.
 72  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 73  * SA_NODEFER prevents the current signal from being masked in the handler.
 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    0x00000001u
 79 #define SA_NOCLDWAIT    0x00000002u
 80 #define SA_SIGINFO      0x00000004u
 81 #define SA_ONSTACK      0x08000000u
 82 #define SA_RESTART      0x10000000u
 83 #define SA_NODEFER      0x40000000u
 84 #define SA_RESETHAND    0x80000000u
 85 
 86 #define SA_NOMASK       SA_NODEFER
 87 #define SA_ONESHOT      SA_RESETHAND
 88 
 89 #define SA_RESTORER     0x04000000
 90 
 91 #define MINSIGSTKSZ     2048
 92 #define SIGSTKSZ        8192
 93 
 94 #include <asm-generic/signal-defs.h>
 95 
 96 #ifndef __ASSEMBLY__
 97 
 98 
 99 # ifndef __KERNEL__
100 /* Here we must cater to libcs that poke about in kernel headers.  */
101 #ifdef __i386__
102 
103 struct sigaction {
104         union {
105           __sighandler_t _sa_handler;
106           void (*_sa_sigaction)(int, struct siginfo *, void *);
107         } _u;
108         sigset_t sa_mask;
109         unsigned long sa_flags;
110         void (*sa_restorer)(void);
111 };
112 
113 #define sa_handler      _u._sa_handler
114 #define sa_sigaction    _u._sa_sigaction
115 
116 #else /* __i386__ */
117 
118 struct sigaction {
119         __sighandler_t sa_handler;
120         unsigned long sa_flags;
121         __sigrestore_t sa_restorer;
122         sigset_t sa_mask;               /* mask last for extensibility */
123 };
124 
125 #endif /* !__i386__ */
126 # endif /* ! __KERNEL__ */
127 
128 typedef struct sigaltstack {
129         void __user *ss_sp;
130         int ss_flags;
131         size_t ss_size;
132 } stack_t;
133 
134 #endif /* __ASSEMBLY__ */
135 
136 #endif /* _UAPI_ASM_X86_SIGNAL_H */
137 

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