tests: add SSP (stack smashing protector) test application

tests/ssp/Makefile

@@ -0,0 +1,14 @@
+APPLICATION = ssp
+include ../Makefile.tests_common
+
+# avr8, msp430 and mips don't support ssp (yet)
+BOARD_BLACKLIST := arduino-mega2560 waspmote-pro arduino-uno arduino-duemilanove \
+                   chronos msb-430 msb-430h telosb wsn430-v1_3b wsn430-v1_4 z1 \
+                   pic32-clicker pic32-wifire
+
+USEMODULE += ssp
+
+# set DEVELHELP so the board halts after crash
+CFLAGS += -DDEVELHELP
+
+include $(RIOTBASE)/Makefile.include

tests/ssp/main.c

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       ssp test application
+ *
+ * This test should crash badly when *not* using the ssp module, and panic if
+ * using it.
+ *
+ * @author      Kaspar Schleiser <kaspar@schleiser.de>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+void test_func(void)
+{
+    char buf[16];
+
+    /* cppcheck-suppress bufferAccessOutOfBounds
+     * (reason: deliberately overflowing stack) */
+    memset(buf, 0, 32);
+}
+
+int main(void)
+{
+    puts("calling stack corruption function");
+
+    test_func();
+
+    puts("back to main");
+
+    return 0;
+}