1 files changed, 58 insertions, 0 deletions
diff --git a/testsuite/systemtap.syscall/signal.c b/testsuite/systemtap.syscall/signal.c
new file mode 100644
index 00000000..9c7ace95
--- /dev/null
+++ b/testsuite/systemtap.syscall/signal.c
@@ -0,0 +1,58 @@
+/* COVERAGE: signal kill tgkill sigprocmask sigaction getpid */
+#include <sys/types.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/syscall.h>
+
+#ifdef SYS_signal
+
+static void 
+sig_act_handler(int signo)
+{
+}
+
+int main()
+{
+  sigset_t mask;
+  struct sigaction sa;
+  pid_t pid;
+
+  syscall(SYS_signal, SIGUSR1, SIG_IGN);
+  // signal (SIGUSR1, 0x00000001) = 0
+
+  syscall(SYS_signal, SIGUSR1, SIG_DFL);
+  // signal (SIGUSR1, 0x00000000) = 1
+
+  syscall(SYS_signal, SIGUSR1, sig_act_handler);
+  // signal (SIGUSR1, XXXX) = 0
+
+  sigemptyset(&mask);
+  sigaddset(&mask, SIGUSR1);
+  syscall(SYS_sigprocmask,SIG_BLOCK, &mask, NULL);
+  // sigprocmask (SIG_BLOCK, XXXX, 0x[0]+) = 0
+
+  syscall(SYS_sigprocmask,SIG_UNBLOCK, &mask, NULL);
+  // sigprocmask (SIG_UNBLOCK, XXXX, 0x[0]+) = 0
+
+  sa.sa_handler = SIG_IGN;
+  sigemptyset(&sa.sa_mask);
+  sigaddset(&sa.sa_mask, SIGALRM);
+  sa.sa_flags = 0;
+  syscall(SYS_sigaction,SIGUSR1, &sa, NULL);
+  // sigaction (SIGUSR1, XXXX, 0x[0]+) = 0
+
+  /* syscall(SYS_kill,0,SIGUSR1);
+   kill (0, SIGUSR1) = 0
+
+   pid = getpid();
+   getpid () = NNNN
+
+
+  syscall(SYS_tgkill,pid,pid,SIGUSR1);
+   tgkill (NNNN, NNNN, SIGUSR1) = 0
+  */
+
+  return 0;
+}
+
+#endif