diff options
Diffstat (limited to 'include/asm-generic/signal.h')
| -rw-r--r-- | include/asm-generic/signal.h | 137 |
1 files changed, 120 insertions, 17 deletions
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h index dae1d872007..555c0aee8a4 100644 --- a/include/asm-generic/signal.h +++ b/include/asm-generic/signal.h @@ -1,28 +1,131 @@ #ifndef __ASM_GENERIC_SIGNAL_H #define __ASM_GENERIC_SIGNAL_H -#include <linux/compiler.h> +#include <linux/types.h> -#ifndef SIG_BLOCK -#define SIG_BLOCK 0 /* for blocking signals */ -#endif -#ifndef SIG_UNBLOCK -#define SIG_UNBLOCK 1 /* for unblocking signals */ -#endif -#ifndef SIG_SETMASK -#define SIG_SETMASK 2 /* for setting the signal mask */ +#define _NSIG 64 +#define _NSIG_BPW __BITS_PER_LONG +#define _NSIG_WORDS (_NSIG / _NSIG_BPW) + +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 +#define SIGBUS 7 +#define SIGFPE 8 +#define SIGKILL 9 +#define SIGUSR1 10 +#define SIGSEGV 11 +#define SIGUSR2 12 +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGSTKFLT 16 +#define SIGCHLD 17 +#define SIGCONT 18 +#define SIGSTOP 19 +#define SIGTSTP 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGURG 23 +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGIO 29 +#define SIGPOLL SIGIO +/* +#define SIGLOST 29 +*/ +#define SIGPWR 30 +#define SIGSYS 31 +#define SIGUNUSED 31 + +/* These should not be considered constants from userland. */ +#define SIGRTMIN 32 +#ifndef SIGRTMAX +#define SIGRTMAX _NSIG #endif +/* + * SA_FLAGS values: + * + * SA_ONSTACK indicates that a registered stack_t will be used. + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_RESETHAND clears the handler when the signal is delivered. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_NODEFER prevents the current signal from being masked in the handler. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + */ +#define SA_NOCLDSTOP 0x00000001 +#define SA_NOCLDWAIT 0x00000002 +#define SA_SIGINFO 0x00000004 +#define SA_ONSTACK 0x08000000 +#define SA_RESTART 0x10000000 +#define SA_NODEFER 0x40000000 +#define SA_RESETHAND 0x80000000 + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND + +/* + * New architectures should not define the obsolete + * SA_RESTORER 0x04000000 + */ + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 2048 +#define SIGSTKSZ 8192 + #ifndef __ASSEMBLY__ -typedef void __signalfn_t(int); -typedef __signalfn_t __user *__sighandler_t; +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} sigset_t; + +/* not actually used, but required for linux/syscalls.h */ +typedef unsigned long old_sigset_t; -typedef void __restorefn_t(void); -typedef __restorefn_t __user *__sigrestore_t; +#include <asm-generic/signal-defs.h> -#define SIG_DFL ((__force __sighandler_t)0) /* default signal handling */ -#define SIG_IGN ((__force __sighandler_t)1) /* ignore signal */ -#define SIG_ERR ((__force __sighandler_t)-1) /* error return from signal */ +struct sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; +#ifdef SA_RESTORER + __sigrestore_t sa_restorer; #endif + sigset_t sa_mask; /* mask last for extensibility */ +}; + +struct k_sigaction { + struct sigaction sa; +}; + +typedef struct sigaltstack { + void __user *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#ifdef __KERNEL__ + +#include <asm/sigcontext.h> +#undef __HAVE_ARCH_SIG_BITOPS + +#define ptrace_signal_deliver(regs, cookie) do { } while (0) + +#endif /* __KERNEL__ */ +#endif /* __ASSEMBLY__ */ -#endif /* __ASM_GENERIC_SIGNAL_H */ +#endif /* _ASM_GENERIC_SIGNAL_H */ |