Changes from Android 10

New features

• Allow to specify whether profiling should only be done for existing processes or only for newly spawned ones using no_startup or no_running in HeapprofdConfig.
• Allow to get the number of bytes that were allocated at a callstack but then not used.
• Allow to dump the maximum, rather than at the time of the dump.

Bugfixes

• Fixed heapprofd on x86.