Add new entry in Release_Notes.

[simgrid.git] / teshsuite / mc / random-bug / random-bug.cpp

diff --git a/teshsuite/mc/random-bug/random-bug.cpp b/teshsuite/mc/random-bug/random-bug.cpp
index 76cc597..80b910e 100644 (file)
--- a/teshsuite/mc/random-bug/random-bug.cpp
+++ b/teshsuite/mc/random-bug/random-bug.cpp
@@ -1,8 +1,9 @@
-/* Copyright (c) 2014-2020. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2014-2023. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
+#include <csignal>
 #include <cstring>
 #include <simgrid/modelchecker.h>
 #include <simgrid/s4u.hpp>
@@ -10,21 +11,30 @@
 
 XBT_LOG_NEW_DEFAULT_CATEGORY(random_bug, "For this example");
 
-enum { ABORT, ASSERT, PRINTF } behavior;
+enum class Behavior { ABORT, ASSERT, PRINTF, SEGV };
+
+Behavior behavior;
 
 /** A fake application with a bug occurring for some random values */
 static void app()
 {
   int x = MC_random(0, 5);
   int y = MC_random(0, 5);
+  XBT_DEBUG("got %d %d", x, y);
 
-  if (behavior == ASSERT) {
+  if (behavior == Behavior::ASSERT) {
     MC_assert(x != 3 || y != 4);
-  } else if (behavior == PRINTF) {
+  } else if (behavior == Behavior::PRINTF) {
     if (x == 3 && y == 4)
       XBT_ERROR("Error reached");
-  } else { // behavior == ABORT
-    abort();
+  } else if (behavior == Behavior::ABORT) {
+    if (x == 3 && y == 4)
+      abort();
+  } else if (behavior == Behavior::SEGV) {
+    if (x == 3 && y == 4)
+      raise(SIGSEGV); // Simulate a segfault without displeasing the static analyzers
+  } else {
+    DIE_IMPOSSIBLE;
   }
 }
 
@@ -32,23 +42,26 @@ static void app()
 int main(int argc, char* argv[])
 {
   simgrid::s4u::Engine e(&argc, argv);
-  xbt_assert(argc == 3, "Usage: random-bug raise|assert <platformfile>");
+  xbt_assert(argc == 3, "Usage: random-bug abort|assert|printf|segv <platformfile>");
   if (strcmp(argv[1], "abort") == 0) {
     XBT_INFO("Behavior: abort");
-    behavior = ABORT;
+    behavior = Behavior::ABORT;
   } else if (strcmp(argv[1], "assert") == 0) {
     XBT_INFO("Behavior: assert");
-    behavior = ASSERT;
+    behavior = Behavior::ASSERT;
   } else if (strcmp(argv[1], "printf") == 0) {
     XBT_INFO("Behavior: printf");
-    behavior = PRINTF;
+    behavior = Behavior::PRINTF;
+  } else if (strcmp(argv[1], "segv") == 0) {
+    XBT_INFO("Behavior: segv");
+    behavior = Behavior::SEGV;
   } else {
-    xbt_die("Please use either 'abort', 'assert' or 'printf' as first parameter, to specify what to do when the error "
-            "is found.");
+    xbt_die("Please use either 'abort', 'assert', 'printf', or 'segv' as first parameter,"
+            " to specify what to do when the error is found.");
   }
 
   e.load_platform(argv[2]);
 
-  simgrid::s4u::Actor::create("app", simgrid::s4u::Host::by_name("Fafard"), &app);
+  simgrid::s4u::Actor::create("app", e.host_by_name("Fafard"), &app);
   e.run();
 }