check the signals for exceptions and do siginfo in the signal handler; also some style

1 files changed, 39 insertions, 30 deletions

diff --git a/src/regress/lib/libc/ieeefp/except/except.c b/src/regress/lib/libc/ieeefp/except/except.c
index 7df9abea07..4e8c17d427 100644
--- a/src/regress/lib/libc/ieeefp/except/except.c
+++ b/src/regress/lib/libc/ieeefp/except/except.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: except.c,v 1.5 2003/09/02 23:52:16 david Exp $        */
+/*      $OpenBSD: except.c,v 1.6 2004/04/02 03:06:12 mickey Exp $       */
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -7,22 +7,31 @@
 #include <ieeefp.h>
 #include <float.h>
 
-volatile sig_atomic_t signal_cought;
+volatile sig_atomic_t signal_caught;
 
-static volatile const double one  = 1.0;
-static volatile const double zero = 0.0;
-static volatile const double huge = DBL_MAX;
-static volatile const double tiny = DBL_MIN;
+volatile const double one  = 1.0;
+volatile const double zero = 0.0;
+volatile const double huge = DBL_MAX;
+volatile const double tiny = DBL_MIN;
 
-static void
-sigfpe(int signo)
+void
+sigfpe(int sig, siginfo_t *si, void *v)
 {
-        signal_cought = 1;
+        char buf[132];
+
+        if (si) {
+                snprintf(buf, sizeof(buf), "sigfpe: addr=%p, code=%d\n",
+                    si->si_addr, si->si_code);
+                write(1, buf, strlen(buf));
+        }
+        signal_caught = 1;
 }
 
+
 int
 main(int argc, char *argv[])
 {
+        struct sigaction sa;
         volatile double x;
 
         /*
@@ -32,59 +41,59 @@ main(int argc, char *argv[])
         assert(fpgetmask() == 0);
         assert(fpgetsticky() == 0);
 
-        /* set up signal handler */
-        signal (SIGFPE, sigfpe);
-        signal_cought = 0;
+        memset(&sa, 0, sizeof(sa));
+        sa.sa_sigaction = sigfpe;
+        sa.sa_flags = SA_SIGINFO;
+        sigaction(SIGFPE, &sa, NULL);
+        signal_caught = 0;
 
         /* trip divide by zero */
         x = one / zero;
-        assert (fpgetsticky() & FP_X_DZ);
-        assert (signal_cought == 0);
+        assert(fpgetsticky() & FP_X_DZ);
+        assert(signal_caught == 0);
         fpsetsticky(0);
 
         /* trip invalid operation */
         x = zero / zero;
-        assert (fpgetsticky() & FP_X_INV);
-        assert (signal_cought == 0);
+        assert(fpgetsticky() & FP_X_INV);
+        assert(signal_caught == 0);
         fpsetsticky(0);
 
         /* trip overflow */
         x = huge * huge;
-        assert (fpgetsticky() & FP_X_OFL);
-        assert (signal_cought == 0);
+        assert(fpgetsticky() & FP_X_OFL);
+        assert(signal_caught == 0);
         fpsetsticky(0);
 
         /* trip underflow */
         x = tiny * tiny;
-        assert (fpgetsticky() & FP_X_UFL);
-        assert (signal_cought == 0);
+        assert(fpgetsticky() & FP_X_UFL);
+        assert(signal_caught == 0);
         fpsetsticky(0);
 
-#if 0
         /* unmask and then trip divide by zero */
         fpsetmask(FP_X_DZ);
         x = one / zero;
-        assert (signal_cought == 1);
-        signal_cought = 0;
+        assert(signal_caught == 1);
+        signal_caught = 0;
 
         /* unmask and then trip invalid operation */
         fpsetmask(FP_X_INV);
         x = zero / zero;
-        assert (signal_cought == 1);
-        signal_cought = 0;
+        assert(signal_caught == 1);
+        signal_caught = 0;
 
         /* unmask and then trip overflow */
         fpsetmask(FP_X_OFL);
         x = huge * huge;
-        assert (signal_cought == 1);
-        signal_cought = 0;
+        assert(signal_caught == 1);
+        signal_caught = 0;
 
         /* unmask and then trip underflow */
         fpsetmask(FP_X_UFL);
         x = tiny * tiny;
-        assert (signal_cought == 1);
-        signal_cought = 0;
-#endif
+        assert (signal_caught == 1);
+        signal_caught = 0;
 
         exit(0);
 }