Add find_unshared_pages tool

The tool goes through all memory maps of two processes and finds pages
that have equal contents but are not shared.

Test: find_unshared_pages --pid1=$(pidof system_server) --pid2=$(pidof com.android.camera2)
Change-Id: I1c5bbb18c9854c13f6112a87dbea2d806421d2bb

1 files changed, 5 insertions, 1 deletions

diff --git a/build/apex/Android.bp b/build/apex/Android.bp
index d2fd8f9e1e..f91b7863ee 100644
--- a/build/apex/Android.bp
+++ b/build/apex/Android.bp
@@ -220,7 +220,11 @@ apex_test {
     native_shared_libs: ["libart"],
     multilib: {
         both: {
-            binaries: ["imgdiag"],
+            binaries: [
+                "imgdiag",
+                "pageinfo",
+                "find_unshared_pages",
+            ],
         },
         first: {
             binaries: ["odrefresh"],