[PATCH v2 2/2] tests/tcg: Add SIGRTMIN/SIGRTMAX test

[Ilya Leoshkevich <iii@linux.ibm.com>]

Test the lowest and the highest real-time signals.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 tests/tcg/multiarch/linux/linux-sigrtminmax.c | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 tests/tcg/multiarch/linux/linux-sigrtminmax.c

diff --git a/tests/tcg/multiarch/linux/linux-sigrtminmax.c b/tests/tcg/multiarch/linux/linux-sigrtminmax.c
new file mode 100644
index 00000000000..773383a3fef
--- /dev/null
+++ b/tests/tcg/multiarch/linux/linux-sigrtminmax.c
@@ -0,0 +1,41 @@
+/*
+ * Test the lowest and the highest real-time signals.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include <assert.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static bool seen_sigrtmin, seen_sigrtmax;
+
+static void handle_signal(int sig)
+{
+    if (sig == SIGRTMIN) {
+        seen_sigrtmin = true;
+    } else if (sig == SIGRTMAX) {
+        seen_sigrtmax = true;
+    } else {
+        _exit(1);
+    }
+}
+
+int main(void)
+{
+    struct sigaction act;
+
+    memset(&act, 0, sizeof(act));
+    act.sa_handler = handle_signal;
+    assert(sigaction(SIGRTMIN, &act, NULL) == 0);
+    assert(sigaction(SIGRTMAX, &act, NULL) == 0);
+
+    assert(kill(getpid(), SIGRTMIN) == 0);
+    assert(seen_sigrtmin);
+    assert(kill(getpid(), SIGRTMAX) == 0);
+    assert(seen_sigrtmax);
+
+    return EXIT_SUCCESS;
+}
-- 
2.43.0