From cde0ac76759388efe25107faa0768c0f8947d8cb Mon Sep 17 00:00:00 2001
From: Tim Murray <timmurray@google.com>
Date: Thu, 4 Apr 2019 09:19:03 -0700
Subject: [PATCH] zygote: initialize ashmem early

avoids dlopen of ashmemd_client in every app startup.

Test: boots, works, doesn't dlopen in app startup
Bug: 129543489
Change-Id: I76ba230af30cd007dbbca054e06660e8a30aca36
---
 core/jni/com_android_internal_os_Zygote.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 430b9c5052235..f599913ce4973 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -73,6 +73,7 @@
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
 #include <android-base/unique_fd.h>
+#include <cutils/ashmem.h>
 #include <cutils/fs.h>
 #include <cutils/multiuser.h>
 #include <private/android_filesystem_config.h>
@@ -1925,6 +1926,11 @@ static void com_android_internal_os_Zygote_nativeInitNativeState(JNIEnv* env, jc
   if (!SetTaskProfiles(0, {})) {
     ZygoteFailure(env, "zygote", nullptr, "Zygote SetTaskProfiles failed");
   }
+
+  /*
+   * ashmem initialization to avoid dlopen overhead
+   */
+  ashmem_init();
 }
 
 /**