Commit fc97afd8 authored Dec 06, 2018 by Peter Collingbourne

Enable shadow call stack in system/bt.

Shadow call stack (SCS) is a security mitigation that uses a separate
stack (the SCS) for return addresses.

This change causes libbluetooth-binder.so and libbluetooth.so to be
built with SCS.

For the moment this is an internal-only change until the AOSP kernels
can be fixed to not clobber x18.

Bug: 112907825
Bug: 120630739
Change-Id: I0b9e948f26b4430dd04f44ffc94abf96d2a7ee8f

parent 561798c9

system/binder/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		@@ -77,6 +77,9 @@ cc_library_shared {
		"-Wextra",
		"-Wno-unused-parameter",
		],
		sanitize: {
		scs: true,
		},
		}

		// AIDL interface between libbluetooth-binder and framework.jar

system/main/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		@@ -87,6 +87,9 @@ cc_library_shared {
		cflags: [
		"-DBUILDCFG",
		],
		sanitize: {
		scs: true,
		},
		}

		cc_library_static {