1#ifndef _ASMPPC_SIGNAL_H 2#define _ASMPPC_SIGNAL_H 3 4#include <linux/types.h> 5 6/* Avoid too many header ordering problems. */ 7struct siginfo; 8 9/* Most things should be clean enough to redefine this at will, if care 10 is taken to make libc match. */ 11 12#define _NSIG 64 13#define _NSIG_BPW 32 14#define _NSIG_WORDS (_NSIG / _NSIG_BPW) 15 16typedef unsigned long old_sigset_t; /* at least 32 bits */ 17 18typedef struct { 19 unsigned long sig[_NSIG_WORDS]; 20} sigset_t; 21 22#define SIGHUP 1 23#define SIGINT 2 24#define SIGQUIT 3 25#define SIGILL 4 26#define SIGTRAP 5 27#define SIGABRT 6 28#define SIGIOT 6 29#define SIGBUS 7 30#define SIGFPE 8 31#define SIGKILL 9 32#define SIGUSR1 10 33#define SIGSEGV 11 34#define SIGUSR2 12 35#define SIGPIPE 13 36#define SIGALRM 14 37#define SIGTERM 15 38#define SIGSTKFLT 16 39#define SIGCHLD 17 40#define SIGCONT 18 41#define SIGSTOP 19 42#define SIGTSTP 20 43#define SIGTTIN 21 44#define SIGTTOU 22 45#define SIGURG 23 46#define SIGXCPU 24 47#define SIGXFSZ 25 48#define SIGVTALRM 26 49#define SIGPROF 27 50#define SIGWINCH 28 51#define SIGIO 29 52#define SIGPOLL SIGIO 53/* 54#define SIGLOST 29 55*/ 56#define SIGPWR 30 57#define SIGSYS 31 58#define SIGUNUSED 31 59 60/* These should not be considered constants from userland. */ 61#define SIGRTMIN 32 62#define SIGRTMAX (_NSIG-1) 63 64/* 65 * SA_FLAGS values: 66 * 67 * SA_ONSTACK is not currently supported, but will allow sigaltstack(2). 68 * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the 69 * SA_RESTART flag to get restarting signals (which were the default long ago) 70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. 71 * SA_RESETHAND clears the handler when the signal is delivered. 72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. 73 * SA_NODEFER prevents the current signal from being masked in the handler. 74 * 75 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single 76 * Unix names RESETHAND and NODEFER respectively. 77 */ 78#define SA_NOCLDSTOP 0x00000001 79#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ 80#define SA_SIGINFO 0x00000004 81#define SA_ONSTACK 0x08000000 82#define SA_RESTART 0x10000000 83#define SA_NODEFER 0x40000000 84#define SA_RESETHAND 0x80000000 85 86#define SA_NOMASK SA_NODEFER 87#define SA_ONESHOT SA_RESETHAND 88#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */ 89 90#define SA_RESTORER 0x04000000 91 92/* 93 * sigaltstack controls 94 */ 95#define SS_ONSTACK 1 96#define SS_DISABLE 2 97 98#define MINSIGSTKSZ 2048 99#define SIGSTKSZ 8192 100#ifdef __KERNEL__ 101 102/* 103 * These values of sa_flags are used only by the kernel as part of the 104 * irq handling routines. 105 * 106 * SA_INTERRUPT is also used by the irq handling routines. 107 * SA_SHIRQ is for shared interrupt support on PCI and EISA. 108 */ 109#define SA_PROBE SA_ONESHOT 110#define SA_SAMPLE_RANDOM SA_RESTART 111#define SA_SHIRQ 0x04000000 112#endif 113 114#define SIG_BLOCK 0 /* for blocking signals */ 115#define SIG_UNBLOCK 1 /* for unblocking signals */ 116#define SIG_SETMASK 2 /* for setting the signal mask */ 117 118/* Type of a signal handler. */ 119typedef void (*__sighandler_t)(int); 120 121#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ 122#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ 123#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ 124 125struct old_sigaction { 126 __sighandler_t sa_handler; 127 old_sigset_t sa_mask; 128 unsigned long sa_flags; 129 void (*sa_restorer)(void); 130}; 131 132struct sigaction { 133 __sighandler_t sa_handler; 134 unsigned long sa_flags; 135 void (*sa_restorer)(void); 136 sigset_t sa_mask; /* mask last for extensibility */ 137}; 138 139struct k_sigaction { 140 struct sigaction sa; 141}; 142 143typedef struct sigaltstack { 144 void *ss_sp; 145 int ss_flags; 146 size_t ss_size; 147} stack_t; 148 149#ifdef __KERNEL__ 150#include <asm/sigcontext.h> 151 152#endif 153 154#endif 155