blob: 643a20d73765a38a1fec42b98715a64c36c04e0a (
plain) (
tree)
|
|
#ifndef _ASMx8664_SIGNAL_H
#define _ASMx8664_SIGNAL_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <linux/linkage.h>
#include <linux/time.h>
/* Avoid too many header ordering problems. */
struct siginfo;
#ifdef __KERNEL__
/* Most things should be clean enough to redefine this at will, if care
is taken to make libc match. */
#define _NSIG 64
#define _NSIG_BPW 64
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
typedef unsigned long old_sigset_t; /* at least 32 bits */
typedef struct {
unsigned long sig[_NSIG_WORDS];
} sigset_t;
struct pt_regs;
asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
#else
/* Here we must cater to libcs that poke about in kernel headers. */
#define NSIG 32
typedef unsigned long sigset_t;
#endif /* __KERNEL__ */
#endif
#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
#define SIGRTMAX _NSIG
/*
* SA_FLAGS values:
*
* SA_ONSTACK indicates that a registered stack_t will be used.
* SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
* 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
#define SA_INTERRUPT 0x20000000 /* dummy -- ignored */
#define SA_RESTORER 0x04000000
/*
* sigaltstack controls
*/
#define SS_ONSTACK 1
#define SS_DISABLE 2
#define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192
#ifdef __KERNEL__
/*
* These values of sa_flags are used only by the kernel as part of the
* irq handling routines.
*
* SA_INTERRUPT is also used by the irq handling routines.
* SA_SHIRQ is for shared interrupt support on PCI and EISA.
*/
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
#endif
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
#define SIG_SETMASK 2 /* for setting the signal mask */
#ifndef __ASSEMBLY__
/* Type of a signal handler. */
typedef void __signalfn_t(int);
typedef __signalfn_t __user *__sighandler_t;
typedef void __restorefn_t(void);
typedef __restorefn_t __user *__sigrestore_t;
#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
struct sigaction {
__sighandler_t sa_handler;
unsigned long sa_flags;
__sigrestore_t sa_restorer;
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
#if 0
extern __inline__ void sigaddset(sigset_t *set, int _sig)
{
__asm__("btsq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
}
extern __inline__ void sigdelset(sigset_t *set, int _sig)
{
__asm__("btrq %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc");
}
extern __inline__ int __const_sigismember(sigset_t *set, int _sig)
{
unsigned long sig = _sig - 1;
return 1 & (set->sig[sig / _NSIG_BPW] >> (sig & ~(_NSIG_BPW-1)));
}
extern __inline__ int __gen_sigismember(sigset_t *set, int _sig)
{
int ret;
__asm__("btq %2,%1\n\tsbbq %0,%0"
: "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
return ret;
}
#define sigismember(set,sig) \
(__builtin_constant_p(sig) ? \
__const_sigismember((set),(sig)) : \
__gen_sigismember((set),(sig)))
extern __inline__ int sigfindinword(unsigned long word)
{
__asm__("bsfq %1,%0" : "=r"(word) : "rm"(word) : "cc");
return word;
}
#endif
#endif
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
#endif /* __KERNEL__ */
#endif
|
