[PULL 3/3] linux-test (tests/tcg/multiarch/linux-test.c) add check

[Taylor Simpson <tsimpson@quicinc.com>]

Add a check that the SIGSEGV handler is called

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <1626384156-6248-3-git-send-email-tsimpson@quicinc.com>
---
 tests/tcg/multiarch/linux-test.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/tcg/multiarch/linux-test.c b/tests/tcg/multiarch/linux-test.c
index c8c6aed..e2d88f8 100644
--- a/tests/tcg/multiarch/linux-test.c
+++ b/tests/tcg/multiarch/linux-test.c
@@ -439,10 +439,14 @@ static void sig_alarm(int sig)
     alarm_count++;
 }
 
+/* Count the number of times handler is called */
+static int sig_segv_called;
+
 static void sig_segv(int sig, siginfo_t *info, void *puc)
 {
     if (sig != SIGSEGV)
         error("signal");
+    sig_segv_called++;
     longjmp(jmp_env, 1);
 }
 
@@ -492,6 +496,10 @@ static void test_signal(void)
         *(volatile uint8_t *)0 = 0;
     }
 
+    if (sig_segv_called == 0) {
+        error("SIGSEGV handler not called");
+    }
+
     act.sa_handler = SIG_DFL;
     sigemptyset(&act.sa_mask);
     act.sa_flags = 0;
-- 
2.7.4