root/include/uapi/asm-generic/signal.h

INCLUDED FROM

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