root/arch/x86/include/uapi/asm/signal.h

INCLUDED FROM

   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 */