1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/* COVERAGE: signal kill tgkill sigprocmask sigaction getpid */
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <sys/syscall.h>
static void
sig_act_handler(int signo)
{
}
int main()
{
sigset_t mask;
struct sigaction sa;
pid_t pid;
#ifdef SYS_signal
syscall(SYS_signal, SIGUSR1, SIG_IGN);
//staptest// signal (SIGUSR1, SIG_IGN)
syscall (SYS_signal, SIGUSR1, SIG_DFL);
//staptest// signal (SIGUSR1, SIG_DFL) = 1
syscall (SYS_signal, SIGUSR1, sig_act_handler);
//staptest// signal (SIGUSR1, XXXX) = 0
#endif
sigemptyset(&mask);
sigaddset(&mask, SIGUSR2);
#ifdef SYS_sigprocmask
syscall (SYS_sigprocmask, SIG_BLOCK, &mask, NULL);
//staptest// sigprocmask (SIG_BLOCK, XXXX, 0x0+) = 0
syscall (SYS_sigprocmask, SIG_UNBLOCK, &mask, NULL);
//staptest// sigprocmask (SIG_UNBLOCK, XXXX, 0x0+) = 0
#endif
memset(&sa, 0, sizeof(sa));
sigfillset(&sa.sa_mask);
sa.sa_handler = SIG_IGN;
#ifdef SYS_sigaction
syscall (SYS_sigaction, SIGUSR1, &sa, NULL);
//staptest// sigaction (SIGUSR1, {SIG_IGN}, 0x0+) = 0
#endif
#ifdef SYS_tgkill
syscall(SYS_tgkill, 1234, 5678, 0);
//staptest// tgkill (1234, 5678, SIG_0)
#endif
return 0;
}
|
