diff --git a/linker/Android.bp b/linker/Android.bp
index a06ca29..37157fd 100644
--- a/linker/Android.bp
+++ b/linker/Android.bp
@@ -494,6 +494,7 @@
         "linker_mapped_file_fragment.cpp",
         "linker_sdk_versions.cpp",
         "linker_dlwarning.cpp",
+        "linker_phdr_16kib_compat.cpp"
     ],
 
     static_libs: [
diff --git a/linker/dlfcn.cpp b/linker/dlfcn.cpp
index fee19f4..4f5e1f7 100644
--- a/linker/dlfcn.cpp
+++ b/linker/dlfcn.cpp
@@ -89,6 +89,7 @@
                       const void* caller_addr) __LINKER_PUBLIC__;
 void __loader_add_thread_local_dtor(void* dso_handle) __LINKER_PUBLIC__;
 void __loader_remove_thread_local_dtor(void* dso_handle) __LINKER_PUBLIC__;
+void __loader_android_set_16kb_appcompat_mode(bool enable_app_compat) __LINKER_PUBLIC__;
 libc_shared_globals* __loader_shared_globals() __LINKER_PUBLIC__;
 #if defined(__arm__)
 _Unwind_Ptr __loader_dl_unwind_find_exidx(_Unwind_Ptr pc, int* pcount) __LINKER_PUBLIC__;
@@ -301,6 +302,11 @@
   decrement_dso_handle_reference_counter(dso_handle);
 }
 
+void __loader_android_set_16kb_appcompat_mode(bool enable_app_compat) {
+  ScopedPthreadMutexLocker locker(&g_dl_mutex);
+  set_16kb_appcompat_mode(enable_app_compat);
+}
+
 libc_shared_globals* __loader_shared_globals() {
   return __libc_shared_globals();
 }
diff --git a/linker/ld_android.cpp b/linker/ld_android.cpp
index 1c03106..c938a16 100644
--- a/linker/ld_android.cpp
+++ b/linker/ld_android.cpp
@@ -55,6 +55,7 @@
 __strong_alias(__loader_add_thread_local_dtor, __internal_linker_error);
 __strong_alias(__loader_remove_thread_local_dtor, __internal_linker_error);
 __strong_alias(__loader_shared_globals, __internal_linker_error);
+__strong_alias(__loader_android_set_16kb_appcompat_mode, __internal_linker_error);
 #if defined(__arm__)
 __strong_alias(__loader_dl_unwind_find_exidx, __internal_linker_error);
 #endif
diff --git a/linker/linker.arm.map b/linker/linker.arm.map
index b805cd6..edfa249 100644
--- a/linker/linker.arm.map
+++ b/linker/linker.arm.map
@@ -25,6 +25,7 @@
     __loader_shared_globals;
     rtld_db_dlactivity;
     __loader_android_handle_signal;
+    __loader_android_set_16kb_appcompat_mode;
   local:
     *;
 };
diff --git a/linker/linker.generic.map b/linker/linker.generic.map
index 4d7f236..2beae65 100644
--- a/linker/linker.generic.map
+++ b/linker/linker.generic.map
@@ -24,6 +24,7 @@
     __loader_shared_globals;
     rtld_db_dlactivity;
     __loader_android_handle_signal;
+    __loader_android_set_16kb_appcompat_mode;
   local:
     *;
 };
diff --git a/linker/linker.h b/linker/linker.h
index ac2222d..a2424c6 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -108,6 +108,9 @@
 
 bool get_transparent_hugepages_supported();
 
+void set_16kb_appcompat_mode(bool enable_app_compat);
+bool get_16kb_appcompat_mode();
+
 enum {
   /* A regular namespace is the namespace with a custom search path that does
    * not impose any restrictions on the location of native libraries.
diff --git a/linker/linker_phdr.cpp b/linker/linker_phdr.cpp
index 7691031..4cbaa2e 100644
--- a/linker/linker_phdr.cpp
+++ b/linker/linker_phdr.cpp
@@ -183,7 +183,8 @@
     // It cannot be cached since the developer may toggle app compat on/off.
     // This check will be removed once app compat is made the default on 16KiB devices.
     should_use_16kib_app_compat_ =
-        ::android::base::GetBoolProperty("bionic.linker.16kb.app_compat.enabled", false);
+        ::android::base::GetBoolProperty("bionic.linker.16kb.app_compat.enabled", false) ||
+        get_16kb_appcompat_mode();
   }
 
   return did_read_;
diff --git a/linker/linker_phdr_16kib_compat.cpp b/linker/linker_phdr_16kib_compat.cpp
index a4d8459..bad20ba 100644
--- a/linker/linker_phdr_16kib_compat.cpp
+++ b/linker/linker_phdr_16kib_compat.cpp
@@ -42,10 +42,20 @@
 
 #include <string>
 
+static bool g_enable_16kb_app_compat;
+
 static inline bool segment_contains_prefix(const ElfW(Phdr)* segment, const ElfW(Phdr)* prefix) {
   return segment && prefix && segment->p_vaddr == prefix->p_vaddr;
 }
 
+void set_16kb_appcompat_mode(bool enable_app_compat) {
+  g_enable_16kb_app_compat = enable_app_compat;
+}
+
+bool get_16kb_appcompat_mode() {
+  return g_enable_16kb_app_compat;
+}
+
 /*
  * Returns true if the ELF contains at most 1 RELRO segment; and populates @relro_phdr
  * with the relro phdr or nullptr if none.