LXR linux/arch/sh/include/asm/signal.h

   1#ifndef __ASM_SH_SIGNAL_H
   2#define __ASM_SH_SIGNAL_H
   3
   4#include <linux/types.h>
   5
   6/* Avoid too many header ordering problems.  */
   7struct pt_regs;
   8struct siginfo;
   9
  10#ifdef __KERNEL__
  11/* Most things should be clean enough to redefine this at will, if care
  12   is taken to make libc match.  */
  13
  14#define _NSIG           64
  15#define _NSIG_BPW       32
  16#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  17
  18typedef unsigned long old_sigset_t;             /* at least 32 bits */
  19
  20typedef struct {
  21        unsigned long sig[_NSIG_WORDS];
  22} sigset_t;
  23
  24#else
  25/* Here we must cater to libcs that poke about in kernel headers.  */
  26
  27#define NSIG            32
  28typedef unsigned long sigset_t;
  29
  30#endif /* __KERNEL__ */
  31
  32#define SIGHUP           1
  33#define SIGINT           2
  34#define SIGQUIT          3
  35#define SIGILL           4
  36#define SIGTRAP          5
  37#define SIGABRT          6
  38#define SIGIOT           6
  39#define SIGBUS           7
  40#define SIGFPE           8
  41#define SIGKILL          9
  42#define SIGUSR1         10
  43#define SIGSEGV         11
  44#define SIGUSR2         12
  45#define SIGPIPE         13
  46#define SIGALRM         14
  47#define SIGTERM         15
  48#define SIGSTKFLT       16
  49#define SIGCHLD         17
  50#define SIGCONT         18
  51#define SIGSTOP         19
  52#define SIGTSTP         20
  53#define SIGTTIN         21
  54#define SIGTTOU         22
  55#define SIGURG          23
  56#define SIGXCPU         24
  57#define SIGXFSZ         25
  58#define SIGVTALRM       26
  59#define SIGPROF         27
  60#define SIGWINCH        28
  61#define SIGIO           29
  62#define SIGPOLL         SIGIO
  63/*
  64#define SIGLOST         29
  65*/
  66#define SIGPWR          30
  67#define SIGSYS          31
  68#define SIGUNUSED       31
  69
  70/* These should not be considered constants from userland.  */
  71#define SIGRTMIN        32
  72#define SIGRTMAX        _NSIG
  73
  74/*
  75 * SA_FLAGS values:
  76 *
  77 * SA_ONSTACK indicates that a registered stack_t will be used.
  78 * SA_RESTART flag to get restarting signals (which were the default long ago)
  79 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  80 * SA_RESETHAND clears the handler when the signal is delivered.
  81 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  82 * SA_NODEFER prevents the current signal from being masked in the handler.
  83 *
  84 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  85 * Unix names RESETHAND and NODEFER respectively.
  86 */
  87#define SA_NOCLDSTOP    0x00000001
  88#define SA_NOCLDWAIT    0x00000002
  89#define SA_SIGINFO      0x00000004
  90#define SA_ONSTACK      0x08000000
  91#define SA_RESTART      0x10000000
  92#define SA_NODEFER      0x40000000
  93#define SA_RESETHAND    0x80000000
  94
  95#define SA_NOMASK       SA_NODEFER
  96#define SA_ONESHOT      SA_RESETHAND
  97
  98#define SA_RESTORER     0x04000000
  99
 100/* 
 101 * sigaltstack controls
 102 */
 103#define SS_ONSTACK      1
 104#define SS_DISABLE      2
 105
 106#define MINSIGSTKSZ     2048
 107#define SIGSTKSZ        8192
 108
 109#include <asm-generic/signal.h>
 110
 111#ifdef __KERNEL__
 112struct old_sigaction {
 113        __sighandler_t sa_handler;
 114        old_sigset_t sa_mask;
 115        unsigned long sa_flags;
 116        void (*sa_restorer)(void);
 117};
 118
 119struct sigaction {
 120        __sighandler_t sa_handler;
 121        unsigned long sa_flags;
 122        void (*sa_restorer)(void);
 123        sigset_t sa_mask;               /* mask last for extensibility */
 124};
 125
 126struct k_sigaction {
 127        struct sigaction sa;
 128};
 129#else
 130/* Here we must cater to libcs that poke about in kernel headers.  */
 131
 132struct sigaction {
 133        union {
 134          __sighandler_t _sa_handler;
 135          void (*_sa_sigaction)(int, struct siginfo *, void *);
 136        } _u;
 137        sigset_t sa_mask;
 138        unsigned long sa_flags;
 139        void (*sa_restorer)(void);
 140};
 141
 142#define sa_handler      _u._sa_handler
 143#define sa_sigaction    _u._sa_sigaction
 144
 145#endif /* __KERNEL__ */
 146
 147typedef struct sigaltstack {
 148        void *ss_sp;
 149        int ss_flags;
 150        size_t ss_size;
 151} stack_t;
 152
 153#ifdef __KERNEL__
 154#include <asm/sigcontext.h>
 155
 156#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 157
 158#endif /* __KERNEL__ */
 159
 160#endif /* __ASM_SH_SIGNAL_H */
 161