diff --git a/third_party/ashmem/ashmem-dev.c b/third_party/ashmem/ashmem-dev.c
index 25a33cdcd0c8..399ea36ce382 100644
--- a/third_party/ashmem/ashmem-dev.c
+++ b/third_party/ashmem/ashmem-dev.c
@@ -18,6 +18,7 @@
 
 #include <dlfcn.h>
 #include <errno.h>
+#include <pthread.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <string.h>
@@ -190,26 +191,30 @@ typedef struct {
   ASharedMemory_setProtFunc setProt;
 } ASharedMemoryFuncs;
 
-const ASharedMemoryFuncs* ashmem_get_funcs() {
-  static ASharedMemoryFuncs s_ashmem_funcs = {};
+static ASharedMemoryFuncs s_ashmem_funcs = {};
+static pthread_once_t s_ashmem_funcs_once = PTHREAD_ONCE_INIT;
+
+static void ashmem_init_funcs() {
   ASharedMemoryFuncs* funcs = &s_ashmem_funcs;
-  if (funcs->create == NULL) {
-    if (device_api_level() >= __ANDROID_API_O__) {
-      /* Leaked intentionally! */
-      void* lib = dlopen("libandroid.so", RTLD_NOW);
-      funcs->create = (ASharedMemory_createFunc)
-          dlsym(lib, "ASharedMemory_create");
-      funcs->getSize = (ASharedMemory_getSizeFunc)
-          dlsym(lib, "ASharedMemory_getSize");
-      funcs->setProt = (ASharedMemory_setProtFunc)
-          dlsym(lib, "ASharedMemory_setProt");
-    } else {
-      funcs->create = &ashmem_dev_create_region;
-      funcs->getSize = &ashmem_dev_get_size_region;
-      funcs->setProt = &ashmem_dev_set_prot_region;
-    }
+  if (device_api_level() >= __ANDROID_API_O__) {
+    /* Leaked intentionally! */
+    void* lib = dlopen("libandroid.so", RTLD_NOW);
+    funcs->create =
+        (ASharedMemory_createFunc)dlsym(lib, "ASharedMemory_create");
+    funcs->getSize =
+        (ASharedMemory_getSizeFunc)dlsym(lib, "ASharedMemory_getSize");
+    funcs->setProt =
+        (ASharedMemory_setProtFunc)dlsym(lib, "ASharedMemory_setProt");
+  } else {
+    funcs->create = &ashmem_dev_create_region;
+    funcs->getSize = &ashmem_dev_get_size_region;
+    funcs->setProt = &ashmem_dev_set_prot_region;
   }
-  return funcs;
+}
+
+static const ASharedMemoryFuncs* ashmem_get_funcs() {
+  pthread_once(&s_ashmem_funcs_once, ashmem_init_funcs);
+  return &s_ashmem_funcs;
 }
 
 int ashmem_create_region(const char* name, size_t size) {