From 7d61a8d47b100e6c16deb2b910f4014d7d9b6f28 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Wed, 28 Mar 2018 10:27:10 -0700
Subject: [PATCH] matrix: ENFORCE_NO_UNUSED_HALS

Enforce that all hals in the device manifest are
in framework compatibility matrix -- at build time.

Bug: 65028233
Test: build a phone without DEVICE_FRAMEWORK_COMPATIBILITY_MATRIX.
Change-Id: Ibf220f80ca3621ddbf8288d372d5f40336e45248
---
 compatibility_matrices/Android.mk | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/compatibility_matrices/Android.mk b/compatibility_matrices/Android.mk
index dd7165d55f..23be7de2f9 100644
--- a/compatibility_matrices/Android.mk
+++ b/compatibility_matrices/Android.mk
@@ -127,6 +127,14 @@ endif
 
 LOCAL_ASSEMBLE_VINTF_ENV_VARS := PRODUCT_ENFORCE_VINTF_MANIFEST
 
+# TODO(b/65028233): Enforce no "unused HALs" for devices that does not define
+# DEVICE_FRAMEWORK_COMPATIBILITY_MATRIX_FILE as well
+ifeq (true,$(strip $(PRODUCT_ENFORCE_VINTF_MANIFEST)))
+ifdef DEVICE_FRAMEWORK_COMPATIBILITY_MATRIX_FILE
+LOCAL_ASSEMBLE_VINTF_ENV_VARS_OVERRIDE := VINTF_ENFORCE_NO_UNUSED_HALS=true
+endif
+endif
+
 include $(BUILD_FRAMEWORK_COMPATIBILITY_MATRIX)
 BUILT_SYSTEM_COMPATIBILITY_MATRIX := $(LOCAL_BUILT_MODULE)