diff --git a/libc/Android.mk b/libc/Android.mk
index 0f828ed..d0c51e4 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -1,5 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 
+bionic_coverage := false
+
 # Make everything depend on any changes to included makefiles.
 libc_common_additional_dependencies := $(LOCAL_PATH)/Android.mk
 
@@ -602,6 +604,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -641,6 +644,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -684,6 +688,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -714,6 +719,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_freebsd_src_files))
@@ -746,6 +752,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_netbsd_src_files))
@@ -785,6 +792,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_openbsd_src_files))
@@ -825,6 +833,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_STATIC_LIBRARY)
@@ -853,6 +862,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_bionic_src_files))
@@ -877,6 +887,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -896,6 +907,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -916,6 +928,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -957,6 +970,7 @@
 
 # TODO: split out the asflags.
 LOCAL_ASFLAGS := $(LOCAL_CFLAGS)
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_common_src_files))
@@ -994,6 +1008,7 @@
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -1015,6 +1030,7 @@
 LOCAL_MODULE := libc_malloc
 LOCAL_CLANG := $(use_clang)
 LOCAL_CXX_STL := none
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(libc_common_additional_dependencies)
 include $(BUILD_STATIC_LIBRARY)
 
@@ -1042,6 +1058,7 @@
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 $(eval $(call patch-up-arch-specific-flags,LOCAL_SRC_FILES,libc_arch_static_src_files))
@@ -1103,6 +1120,7 @@
     arch-common/bionic/crtbegin_so.c \
     arch-arm/bionic/atexit_legacy.c \
     arch-common/bionic/crtend_so.S
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -1152,6 +1170,7 @@
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1185,6 +1204,7 @@
 
 # Don't install on release build
 LOCAL_MODULE_TAGS := eng debug
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 
 $(eval $(call patch-up-arch-specific-flags,LOCAL_CFLAGS,libc_common_cflags))
 include $(BUILD_SHARED_LIBRARY)
@@ -1209,6 +1229,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_SHARED_LIBRARY)
 
 # ========================================================
@@ -1223,6 +1244,7 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_CXX_STL := none
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_NATIVE_COVERAGE := $(bionic_coverage)
 include $(BUILD_STATIC_LIBRARY)