Implemented crash-handling mechanism for 'native' platform

cpu/native/crash.c

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2014 Freie Universitaet Berlin (FUB) and INRIA
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License. See the file LICENSE in the top level directory for more
+ * details.
+ */
+
+/**
+ * @ingroup  core_util
+ * @{
+ *
+ * @file        crash.c
+ * @brief       Crash handling functions implementation for 'native' port
+ *
+ * @author      Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
+ * @author      Kévin Roussel <Kevin.Roussel@inria.fr>
+ */
+
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "crash.h"
+
+/* "public" variables holding the crash data (look for them in your debugger) */
+char panic_str[80];
+int panic_code;
+
+/* flag preventing "recursive crash printing loop" */
+static int crashed = 0;
+
+NORETURN void core_panic(int crash_code, const char *message)
+{
+    if (crashed == 0) {
+        crashed = 1;
+        /* copy the crash data to "long-lived" global variables */
+        panic_code = crash_code;
+        strncpy(panic_str, message, 80);
+        /* try to print panic message to console (if possible) */
+        puts("******** SYSTEM FAILURE ********\n");
+        puts(message);
+        puts("******** RIOT HALTS HERE ********\n");
+        puts("\n\n");
+    }
+    /* since we're atop an Unix-like platform,
+       just use the (developer-)friendly core-dump feature */
+    kill(getpid(), SIGTRAP);
+    /* proove the compiler that we won't return from this function
+       (even if we actually won't even get here...) */
+    while (1) {
+        /* nothing in particular */;
+    }
+}