73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* libc/sys/linux/signal.c - Signal handling functions */
|
|
|
|
/* Written 2000 by Werner Almesberger */
|
|
|
|
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <machine/syscall.h>
|
|
|
|
/* avoid name space pollution */
|
|
#define __NR___sgetmask __NR_sgetmask
|
|
#define __NR___ssetmask __NR_ssetmask
|
|
#define __NR___sigsuspend __NR_sigsuspend
|
|
#define __NR___rt_sigtimedwait __NR_rt_sigtimedwait
|
|
|
|
_syscall2(int,kill,pid_t,pid,int,sig)
|
|
_syscall2(__sighandler_t,signal,int,signum,__sighandler_t,handler)
|
|
_syscall3(int,sigaction,int,signum,const struct sigaction *,act,
|
|
struct sigaction *,oldact)
|
|
_syscall1(int,sigpending,sigset_t *,set)
|
|
_syscall0(int,pause)
|
|
_syscall1(unsigned int,alarm,unsigned int,seconds)
|
|
_syscall3(int,sigprocmask,int,how,const sigset_t *,set,sigset_t *,oldset)
|
|
|
|
static _syscall0(int,__sgetmask)
|
|
static _syscall1(int,__ssetmask,int,newmask)
|
|
static _syscall3(int,__sigsuspend,int,arg1,int,arg2,int,mask)
|
|
static _syscall4(int,__rt_sigtimedwait,const sigset_t *,set,siginfo_t *,info,struct timespec *,timeout,size_t,size)
|
|
|
|
int sigsuspend (const sigset_t *mask)
|
|
{
|
|
return __sigsuspend(0,0,((__sigset_t *)mask)->__val[0]);
|
|
}
|
|
|
|
int sigsetmask(int newmask) /* BSD */
|
|
{
|
|
return __ssetmask(newmask);
|
|
}
|
|
|
|
|
|
int sigmask(int signum) /* BSD */
|
|
{
|
|
return 1 << signum;
|
|
}
|
|
|
|
|
|
int sigblock(int mask) /* BSD */
|
|
{
|
|
return __ssetmask(mask | __sgetmask());
|
|
}
|
|
|
|
int __libc_raise(int sig)
|
|
{
|
|
return kill(getpid(),sig);
|
|
}
|
|
weak_alias(__libc_raise,raise)
|
|
|
|
int sigtimedwait(const sigset_t *set, siginfo_t *info,
|
|
struct timespec *timeout)
|
|
{
|
|
return __rt_sigtimedwait(set, info, timeout, sizeof(sigset_t));
|
|
}
|
|
|
|
int sigwaitinfo(const sigset_t *set, siginfo_t *info)
|
|
{
|
|
return __rt_sigtimedwait(set, info, NULL, sizeof(sigset_t));
|
|
}
|
|
|
|
const char *const sys_siglist[] = {
|
|
#include "siglist.inc"
|
|
};
|