From 31167aeaf49870036a10ece80a064ed83d2557c6 Mon Sep 17 00:00:00 2001
From: Mathew Inwood <mathewi@google.com>
Date: Thu, 22 Jul 2021 12:10:57 +0100
Subject: [PATCH] Don't use mainline prebuilts for coverage builds.

Test: TH
Bug: 192556458
Bug: 159241638
Change-Id: Id29e273c1df1fa27a038ebdcff1a17acca58bd46
---
 core/main.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/main.mk b/core/main.mk
index 6f0277ec0e..d9c9732a85 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -122,6 +122,9 @@ ifeq (true,$(EMMA_INSTRUMENT))
 ifndef SKIP_BOOT_JARS_CHECK
 SKIP_BOOT_JARS_CHECK := true
 endif
+# Mainline modules prebuilts do support coverage. Build them from source.
+# See b/159241638
+MODULE_BUILD_FROM_SOURCE := true
 endif
 
 ifdef TARGET_ARCH_SUITE