Add dumpsys meminfo --unreachable
dumpsys meminfo --unreachable will search the native heap for
allocations that are unreachable.
Bug: 27208635
Change-Id: I40ab1c261cb222ca71d04ab8408f355bcb18ed94
(cherry picked from commit 84b1e3554b36b7fbccf57330c93bf484985ae3d6)
diff --git a/core/jni/android_os_Debug.cpp b/core/jni/android_os_Debug.cpp
index 03a1e71..3df0876 100644
--- a/core/jni/android_os_Debug.cpp
+++ b/core/jni/android_os_Debug.cpp
@@ -21,6 +21,7 @@
#include "utils/misc.h"
#include "cutils/debugger.h"
#include <memtrack/memtrack.h>
+#include <memunreachable/memunreachable.h>
#include <cutils/log.h>
#include <fcntl.h>
@@ -36,6 +37,9 @@
#include <ctype.h>
#include <malloc.h>
+#include <iomanip>
+#include <string>
+
namespace android
{
@@ -1023,6 +1027,13 @@
close(fd);
}
+static jstring android_os_Debug_getUnreachableMemory(JNIEnv* env, jobject clazz,
+ jint limit, jboolean contents)
+{
+ std::string s = GetUnreachableMemoryString(contents, limit);
+ return env->NewStringUTF(s.c_str());
+}
+
/*
* JNI registration.
*/
@@ -1058,6 +1069,8 @@
(void*)android_os_Debug_getDeathObjectCount },
{ "dumpNativeBacktraceToFile", "(ILjava/lang/String;)V",
(void*)android_os_Debug_dumpNativeBacktraceToFile },
+ { "getUnreachableMemory", "(IZ)Ljava/lang/String;",
+ (void*)android_os_Debug_getUnreachableMemory },
};
int register_android_os_Debug(JNIEnv *env)