From 9d45ccc0578570f90d5b2b73ada42c5bfd1c993a Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@android.com>
Date: Tue, 20 Jun 2017 17:48:33 -0700
Subject: Add getBinderKernelReferences

Add a wrapper for the new BINDER_GET_NODE_DEBUG_INFO ioctl for use by
libmemunreachable.

Test: memunreachable_binder_test
Bug: 28275695
Change-Id: Ic112584fa05071bd336974b3a18869077a69389b
Merged-In: Ic112584fa05071bd336974b3a18869077a69389b
(cherry picked from commit b869cc94704d1a3d6226f471984eb33ff1bac7d5)
---
 libs/binder/Debug.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'libs/binder/Debug.cpp')

diff --git a/libs/binder/Debug.cpp b/libs/binder/Debug.cpp
index a8f2da5ba5..4ac61a3007 100644
--- a/libs/binder/Debug.cpp
+++ b/libs/binder/Debug.cpp
@@ -15,6 +15,7 @@
  */
 
 #include <binder/Debug.h>
+#include <binder/ProcessState.h>
 
 #include <utils/misc.h>
 
@@ -294,5 +295,14 @@ void printHexData(int32_t indent, const void *buf, size_t length,
     }
 }
 
+ssize_t getBinderKernelReferences(size_t count, uintptr_t* buf) {
+    sp<ProcessState> proc = ProcessState::selfOrNull();
+    if (proc.get() == NULL) {
+        return 0;
+    }
+
+    return proc->getKernelReferences(count, buf);
+}
+
 }; // namespace android
 
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