From c49eb9a6804c03ef12d7f0cd990aaaf4e8192e60 Mon Sep 17 00:00:00 2001
From: John McCutchan <john@johnmccutchan.com>
Date: Thu, 17 Nov 2016 10:14:53 -0800
Subject: [PATCH] Disable Dart's profiler in unoptimized builds
 (flutter/engine#3234)

---
 engine/src/flutter/runtime/dart_init.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/engine/src/flutter/runtime/dart_init.cc b/engine/src/flutter/runtime/dart_init.cc
index 2cdfd538c2..f277b69254 100644
--- a/engine/src/flutter/runtime/dart_init.cc
+++ b/engine/src/flutter/runtime/dart_init.cc
@@ -83,6 +83,12 @@ static const char* kDartProfilingArgs[] = {
     // default profile period to 100Hz. This number is suitable for older
     // Raspberry Pi devices but quite low for current smartphones.
     "--profile_period=1000",
+    // Disable Dart's built in profiler when building a debug build. This
+    // works around a race condition that would sometimes stop a crash's
+    // stack trace from being printed on Android.
+#ifndef NDEBUG
+    "--no-profiler",
+#endif
 #if (WTF_OS_IOS || WTF_OS_MACOSX)
     // On platforms where LLDB is the primary debugger, SIGPROF signals
     // overwhelm LLDB.