diff --git a/libc/malloc_debug/LogAllocatorStats.cpp b/libc/malloc_debug/LogAllocatorStats.cpp
new file mode 100644
index 0000000..6d1434e
--- /dev/null
+++ b/libc/malloc_debug/LogAllocatorStats.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <malloc.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "Config.h"
+#include "LogAllocatorStats.h"
+#include "debug_log.h"
+
+namespace LogAllocatorStats {
+
+static std::atomic_bool g_call_mallopt = {};
+
+static void CallMalloptLogStats(int, struct siginfo*, void*) {
+  g_call_mallopt = true;
+}
+
+void CheckIfShouldLog() {
+  bool expected = true;
+  if (g_call_mallopt.compare_exchange_strong(expected, false)) {
+    info_log("Logging allocator stats...");
+    if (mallopt(M_LOG_STATS, 0) == 0) {
+      error_log("mallopt(M_LOG_STATS, 0) call failed.");
+    }
+  }
+}
+
+bool Initialize(const Config& config) {
+  struct sigaction64 log_stats_act = {};
+  log_stats_act.sa_sigaction = CallMalloptLogStats;
+  log_stats_act.sa_flags = SA_RESTART | SA_SIGINFO | SA_ONSTACK;
+  if (sigaction64(config.log_allocator_stats_signal(), &log_stats_act, nullptr) != 0) {
+    error_log("Unable to set up log allocator stats signal function: %s", strerror(errno));
+    return false;
+  }
+
+  if (config.options() & VERBOSE) {
+    info_log("%s: Run: 'kill -%d %d' to log allocator stats.", getprogname(),
+             config.log_allocator_stats_signal(), getpid());
+  }
+
+  return true;
+}
+
+}  // namespace LogAllocatorStats