LXR linux/arch/ia64/include/asm/signal.h

   1#ifndef _ASM_IA64_SIGNAL_H
   2#define _ASM_IA64_SIGNAL_H
   3
   4/*
   5 * Modified 1998-2001, 2003
   6 *      David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
   7 *
   8 * Unfortunately, this file is being included by bits/signal.h in
   9 * glibc-2.x.  Hence the #ifdef __KERNEL__ ugliness.
  10 */
  11
  12#define SIGHUP           1
  13#define SIGINT           2
  14#define SIGQUIT          3
  15#define SIGILL           4
  16#define SIGTRAP          5
  17#define SIGABRT          6
  18#define SIGIOT           6
  19#define SIGBUS           7
  20#define SIGFPE           8
  21#define SIGKILL          9
  22#define SIGUSR1         10
  23#define SIGSEGV         11
  24#define SIGUSR2         12
  25#define SIGPIPE         13
  26#define SIGALRM         14
  27#define SIGTERM         15
  28#define SIGSTKFLT       16
  29#define SIGCHLD         17
  30#define SIGCONT         18
  31#define SIGSTOP         19
  32#define SIGTSTP         20
  33#define SIGTTIN         21
  34#define SIGTTOU         22
  35#define SIGURG          23
  36#define SIGXCPU         24
  37#define SIGXFSZ         25
  38#define SIGVTALRM       26
  39#define SIGPROF         27
  40#define SIGWINCH        28
  41#define SIGIO           29
  42#define SIGPOLL         SIGIO
  43/*
  44#define SIGLOST         29
  45*/
  46#define SIGPWR          30
  47#define SIGSYS          31
  48/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
  49#define SIGUNUSED       31
  50
  51/* These should not be considered constants from userland.  */
  52#define SIGRTMIN        32
  53#define SIGRTMAX        _NSIG
  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#define SA_RESTORER     0x04000000
  80
  81/*
  82 * sigaltstack controls
  83 */
  84#define SS_ONSTACK      1
  85#define SS_DISABLE      2
  86
  87/*
  88 * The minimum stack size needs to be fairly large because we want to
  89 * be sure that an app compiled for today's CPUs will continue to run
  90 * on all future CPU models.  The CPU model matters because the signal
  91 * frame needs to have space for the complete machine state, including
  92 * all physical stacked registers.  The number of physical stacked
  93 * registers is CPU model dependent, but given that the width of
  94 * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
  95 * more than 16KB of space.
  96 */
  97#if 1
  98  /*
  99   * This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
 100   * in wrong. ;-(  To preserve backwards compatibility, we leave the kernel at the
 101   * incorrect value and fix libc only.
 102   */
 103# define MINSIGSTKSZ    131027  /* min. stack size for sigaltstack() */
 104#else
 105# define MINSIGSTKSZ    131072  /* min. stack size for sigaltstack() */
 106#endif
 107#define SIGSTKSZ        262144  /* default stack size for sigaltstack() */
 108
 109#ifdef __KERNEL__
 110
 111#define _NSIG           64
 112#define _NSIG_BPW       64
 113#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
 114
 115#endif /* __KERNEL__ */
 116
 117#include <asm-generic/signal-defs.h>
 118
 119# ifndef __ASSEMBLY__
 120
 121#  include <linux/types.h>
 122
 123/* Avoid too many header ordering problems.  */
 124struct siginfo;
 125
 126typedef struct sigaltstack {
 127        void __user *ss_sp;
 128        int ss_flags;
 129        size_t ss_size;
 130} stack_t;
 131
 132#ifdef __KERNEL__
 133
 134/* Most things should be clean enough to redefine this at will, if care
 135   is taken to make libc match.  */
 136
 137typedef unsigned long old_sigset_t;
 138
 139typedef struct {
 140        unsigned long sig[_NSIG_WORDS];
 141} sigset_t;
 142
 143struct sigaction {
 144        __sighandler_t sa_handler;
 145        unsigned long sa_flags;
 146        sigset_t sa_mask;               /* mask last for extensibility */
 147};
 148
 149struct k_sigaction {
 150        struct sigaction sa;
 151};
 152
 153#  include <asm/sigcontext.h>
 154
 155#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 156
 157#endif /* __KERNEL__ */
 158
 159# endif /* !__ASSEMBLY__ */
 160#endif /* _ASM_IA64_SIGNAL_H */
 161