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

   1#ifndef _ASM_POWERPC_SIGNAL_H
   2#define _ASM_POWERPC_SIGNAL_H
   3
   4#include <linux/types.h>
   5
   6#define _NSIG           64
   7#ifdef __powerpc64__
   8#define _NSIG_BPW       64
   9#else
  10#define _NSIG_BPW       32
  11#endif
  12#define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  13
  14typedef unsigned long old_sigset_t;             /* at least 32 bits */
  15
  16typedef struct {
  17        unsigned long sig[_NSIG_WORDS];
  18} sigset_t;
  19
  20#define SIGHUP           1
  21#define SIGINT           2
  22#define SIGQUIT          3
  23#define SIGILL           4
  24#define SIGTRAP          5
  25#define SIGABRT          6
  26#define SIGIOT           6
  27#define SIGBUS           7
  28#define SIGFPE           8
  29#define SIGKILL          9
  30#define SIGUSR1         10
  31#define SIGSEGV         11
  32#define SIGUSR2         12
  33#define SIGPIPE         13
  34#define SIGALRM         14
  35#define SIGTERM         15
  36#define SIGSTKFLT       16
  37#define SIGCHLD         17
  38#define SIGCONT         18
  39#define SIGSTOP         19
  40#define SIGTSTP         20
  41#define SIGTTIN         21
  42#define SIGTTOU         22
  43#define SIGURG          23
  44#define SIGXCPU         24
  45#define SIGXFSZ         25
  46#define SIGVTALRM       26
  47#define SIGPROF         27
  48#define SIGWINCH        28
  49#define SIGIO           29
  50#define SIGPOLL         SIGIO
  51/*
  52#define SIGLOST         29
  53*/
  54#define SIGPWR          30
  55#define SIGSYS          31
  56#define SIGUNUSED       31
  57
  58/* These should not be considered constants from userland.  */
  59#define SIGRTMIN        32
  60#define SIGRTMAX        _NSIG
  61
  62/*
  63 * SA_FLAGS values:
  64 *
  65 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2).
  66 * SA_RESTART flag to get restarting signals (which were the default long ago)
  67 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
  68 * SA_RESETHAND clears the handler when the signal is delivered.
  69 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
  70 * SA_NODEFER prevents the current signal from being masked in the handler.
  71 *
  72 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
  73 * Unix names RESETHAND and NODEFER respectively.
  74 */
  75#define SA_NOCLDSTOP    0x00000001U
  76#define SA_NOCLDWAIT    0x00000002U
  77#define SA_SIGINFO      0x00000004U
  78#define SA_ONSTACK      0x08000000U
  79#define SA_RESTART      0x10000000U
  80#define SA_NODEFER      0x40000000U
  81#define SA_RESETHAND    0x80000000U
  82
  83#define SA_NOMASK       SA_NODEFER
  84#define SA_ONESHOT      SA_RESETHAND
  85
  86#define SA_RESTORER     0x04000000U
  87
  88/*
  89 * sigaltstack controls
  90 */
  91#define SS_ONSTACK      1
  92#define SS_DISABLE      2
  93
  94#define MINSIGSTKSZ     2048
  95#define SIGSTKSZ        8192
  96
  97#include <asm-generic/signal-defs.h>
  98
  99struct old_sigaction {
 100        __sighandler_t sa_handler;
 101        old_sigset_t sa_mask;
 102        unsigned long sa_flags;
 103        __sigrestore_t sa_restorer;
 104};
 105
 106struct sigaction {
 107        __sighandler_t sa_handler;
 108        unsigned long sa_flags;
 109        __sigrestore_t sa_restorer;
 110        sigset_t sa_mask;               /* mask last for extensibility */
 111};
 112
 113struct k_sigaction {
 114        struct sigaction sa;
 115};
 116
 117typedef struct sigaltstack {
 118        void __user *ss_sp;
 119        int ss_flags;
 120        size_t ss_size;
 121} stack_t;
 122
 123#ifdef __KERNEL__
 124struct pt_regs;
 125#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 126#endif /* __KERNEL__ */
 127
 128#ifndef __powerpc64__
 129/*
 130 * These are parameters to dbg_sigreturn syscall.  They enable or
 131 * disable certain debugging things that can be done from signal
 132 * handlers.  The dbg_sigreturn syscall *must* be called from a
 133 * SA_SIGINFO signal so the ucontext can be passed to it.  It takes an
 134 * array of struct sig_dbg_op, which has the debug operations to
 135 * perform before returning from the signal.
 136 */
 137struct sig_dbg_op {
 138        int dbg_type;
 139        unsigned long dbg_value;
 140};
 141
 142/* Enable or disable single-stepping.  The value sets the state. */
 143#define SIG_DBG_SINGLE_STEPPING         1
 144
 145/* Enable or disable branch tracing.  The value sets the state. */
 146#define SIG_DBG_BRANCH_TRACING          2
 147#endif /* ! __powerpc64__ */
 148
 149#endif /* _ASM_POWERPC_SIGNAL_H */
 150