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.  */
 124 struct siginfo;
 125
 126 typedef 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
 137 typedef unsigned long old_sigset_t;
 138
 139 typedef struct {
 140         unsigned long sig[_NSIG_WORDS];
 141 } sigset_t;
 142
 143 struct sigaction {
 144         __sighandler_t sa_handler;
 145         unsigned long sa_flags;
 146         sigset_t sa_mask;               /* mask last for extensibility */
 147 };
 148
 149 struct 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 */