1 files changed, 71 insertions, 0 deletions
diff --git a/xpcom/base/IntentionalCrash.h b/xpcom/base/IntentionalCrash.h
new file mode 100644
index 0000000000..3ee751f7c7
--- /dev/null
+++ b/xpcom/base/IntentionalCrash.h
@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_IntentionalCrash_h
+#define mozilla_IntentionalCrash_h
+
+#include <string>
+#include <sstream>
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef XP_WIN
+#  include <process.h>
+#  define getpid _getpid
+#else
+#  include <unistd.h>
+#endif
+
+namespace mozilla {
+
+inline void NoteIntentionalCrash(const char* aProcessType, uint32_t aPid = 0) {
+// In opt builds we don't actually have the leak checking enabled, and the
+// sandbox doesn't allow writing to this path, so we just disable this
+// function's behaviour.
+#ifdef MOZ_DEBUG
+  char* f = getenv("XPCOM_MEM_BLOAT_LOG");
+  if (!f) {
+    return;
+  }
+
+  fprintf(stderr, "XPCOM_MEM_BLOAT_LOG: %s\n", f);
+
+  uint32_t processPid = aPid == 0 ? getpid() : aPid;
+
+  std::ostringstream bloatName;
+  std::string processType(aProcessType);
+  if (!processType.compare("default")) {
+    bloatName << f;
+  } else {
+    std::string bloatLog(f);
+
+    bool hasExt = false;
+    if (bloatLog.size() >= 4 &&
+        bloatLog.compare(bloatLog.size() - 4, 4, ".log", 4) == 0) {
+      hasExt = true;
+      bloatLog.erase(bloatLog.size() - 4, 4);
+    }
+
+    bloatName << bloatLog << "_" << processType << "_pid" << processPid;
+    if (hasExt) {
+      bloatName << ".log";
+    }
+  }
+
+  fprintf(stderr, "Writing to log: %s\n", bloatName.str().c_str());
+
+  FILE* processfd = fopen(bloatName.str().c_str(), "a");
+  if (processfd) {
+    fprintf(processfd, "\n==> process %d will purposefully crash\n",
+            processPid);
+    fclose(processfd);
+  }
+#endif
+}
+
+}  // namespace mozilla
+
+#endif  // mozilla_IntentionalCrash_h