include/asm-m32r/signal.h

   1 #ifndef _ASM_M32R_SIGNAL_H
   2 #define _ASM_M32R_SIGNAL_H
   3
   4 /* $Id$ */
   5
   6 /* orig : i386 2.4.18 */
   7
   8 #include <linux/types.h>
   9 #include <linux/linkage.h>
  10 #include <linux/time.h>
  11 #include <linux/compiler.h>
  12
  13 /* Avoid too many header ordering problems.  */
  14 struct siginfo;
  15
  16 #ifdef __KERNEL__
  17 /* Most things should be clean enough to redefine this at will, if care
  18    is taken to make libc match.  */
  19
  20 #define _NSIG           64
  21 #define _NSIG_BPW       32
  22 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  23
  24 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  25
  26 typedef struct {
  27         unsigned long sig[_NSIG_WORDS];
  28 } sigset_t;
  29
  30 #else
  31 /* Here we must cater to libcs that poke about in kernel headers.  */
  32
  33 #define NSIG            32
  34 typedef unsigned long sigset_t;
  35
  36 #endif /* __KERNEL__ */
  37
  38 #define SIGHUP           1
  39 #define SIGINT           2
  40 #define SIGQUIT          3
  41 #define SIGILL           4
  42 #define SIGTRAP          5
  43 #define SIGABRT          6
  44 #define SIGIOT           6
  45 #define SIGBUS           7
  46 #define SIGFPE           8
  47 #define SIGKILL          9
  48 #define SIGUSR1         10
  49 #define SIGSEGV         11
  50 #define SIGUSR2         12
  51 #define SIGPIPE         13
  52 #define SIGALRM         14
  53 #define SIGTERM         15
  54 #define SIGSTKFLT       16
  55 #define SIGCHLD         17
  56 #define SIGCONT         18
  57 #define SIGSTOP         19
  58 #define SIGTSTP         20
  59 #define SIGTTIN         21
  60 #define SIGTTOU         22
  61 #define SIGURG          23
  62 #define SIGXCPU         24
  63 #define SIGXFSZ         25
  64 #define SIGVTALRM       26
  65 #define SIGPROF         27
  66 #define SIGWINCH        28
  67 #define SIGIO           29
  68 #define SIGPOLL         SIGIO
  69 /*
  70 #define SIGLOST         29
  71 */
  72 #define SIGPWR          30
  73 #define SIGSYS          31
  74 #define SIGUNUSED       31
  75
  76 /* These should not be considered constants from userland.  */
  77 #define SIGRTMIN        32
  78 #define SIGRTMAX        _NSIG
  79
  80 /*
  81  * SA_FLAGS values:
  82  *
  83  * SA_ONSTACK indicates that a registered stack_t will be used.
  84  * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
  85  * SA_RESTART flag to get restarting signals (which were the default long ago)
  86  * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  87  * SA_RESETHAND clears the handler when the signal is delivered.
  88  * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  89  * SA_NODEFER prevents the current signal from being masked in the handler.
  90  *
  91  * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  92  * Unix names RESETHAND and NODEFER respectively.
  93  */
  94 #define SA_NOCLDSTOP    0x00000001u
  95 #define SA_NOCLDWAIT    0x00000002u
  96 #define SA_SIGINFO      0x00000004u
  97 #define SA_ONSTACK      0x08000000u
  98 #define SA_RESTART      0x10000000u
  99 #define SA_NODEFER      0x40000000u
 100 #define SA_RESETHAND    0x80000000u
 101
 102 #define SA_NOMASK       SA_NODEFER
 103 #define SA_ONESHOT      SA_RESETHAND
 104 #define SA_INTERRUPT    0x20000000 /* dummy -- ignored */
 105
 106 #define SA_RESTORER     0x04000000
 107
 108 /*
 109  * sigaltstack controls
 110  */
 111 #define SS_ONSTACK      1
 112 #define SS_DISABLE      2
 113
 114 #define MINSIGSTKSZ     2048
 115 #define SIGSTKSZ        8192
 116
 117 #ifdef __KERNEL__
 118
 119 /*
 120  * These values of sa_flags are used only by the kernel as part of the
 121  * irq handling routines.
 122  *
 123  * SA_INTERRUPT is also used by the irq handling routines.
 124  * SA_SHIRQ is for shared interrupt support on PCI and EISA.
 125  */
 126 #define SA_PROBE                SA_ONESHOT
 127 #define SA_SAMPLE_RANDOM        SA_RESTART
 128 #define SA_SHIRQ                0x04000000
 129 #endif
 130
 131 #define SIG_BLOCK          0    /* for blocking signals */
 132 #define SIG_UNBLOCK        1    /* for unblocking signals */
 133 #define SIG_SETMASK        2    /* for setting the signal mask */
 134
 135 /* Type of a signal handler.  */
 136 typedef void __signalfn_t(int);
 137 typedef __signalfn_t __user *__sighandler_t;
 138
 139 typedef void __restorefn_t(void);
 140 typedef __restorefn_t __user *__sigrestore_t;
 141
 142 #define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
 143 #define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
 144 #define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
 145
 146 #ifdef __KERNEL__
 147 struct old_sigaction {
 148         __sighandler_t sa_handler;
 149         old_sigset_t sa_mask;
 150         unsigned long sa_flags;
 151         __sigrestore_t sa_restorer;
 152 };
 153
 154 struct sigaction {
 155         __sighandler_t sa_handler;
 156         unsigned long sa_flags;
 157         __sigrestore_t sa_restorer;
 158         sigset_t sa_mask;               /* mask last for extensibility */
 159 };
 160
 161 struct k_sigaction {
 162         struct sigaction sa;
 163 };
 164 #else
 165 /* Here we must cater to libcs that poke about in kernel headers.  */
 166
 167 struct sigaction {
 168         union {
 169           __sighandler_t _sa_handler;
 170           void (*_sa_sigaction)(int, struct siginfo *, void *);
 171         } _u;
 172         sigset_t sa_mask;
 173         unsigned long sa_flags;
 174         void (*sa_restorer)(void);
 175 };
 176
 177 #define sa_handler      _u._sa_handler
 178 #define sa_sigaction    _u._sa_sigaction
 179
 180 #endif /* __KERNEL__ */
 181
 182 typedef struct sigaltstack {
 183         void __user *ss_sp;
 184         int ss_flags;
 185         size_t ss_size;
 186 } stack_t;
 187
 188 #ifdef __KERNEL__
 189 #include <asm/sigcontext.h>
 190
 191 #undef __HAVE_ARCH_SIG_BITOPS
 192
 193 struct pt_regs;
 194 extern int FASTCALL(do_signal(struct pt_regs *regs, sigset_t *oldset));
 195
 196 #define ptrace_signal_deliver(regs, cookie)     do { } while (0)
 197
 198 #endif /* __KERNEL__ */
 199
 200 #endif  /* _ASM_M32R_SIGNAL_H */