libfdt: Move funcs for non-DT buffers out of Fdt

Move check_full() and create_empty_tree() out of the class as they did
not work well with OOP (RAII) given that they were intended to act on
buffers that _might_ contain a valid DT (while Fdt should only wrap
buffers with valid DTs).

This introduces a new module, which should end up containing all (and
only) the FFI calls, providing a low-level Rust-safe API to lib.rs. This
will allow us to decouple the high-level client-facing classes (Fdt,
FdtNode, FdtNodeMut, ...) from the low-level considerations of dealing
with the libfdt C function.

Reduce the unsafe blocks to the strict minimum (i.e. the FFI calls).

Test: m pvmfw
Test: atest liblibfdt.integration_test
Change-Id: Ic5efebced5827a8a26af48a151bb437df6f71a93
2 files changed
tree: 18c7e78bd956e9159837759c90b84313fc97888d
  1. apex/
  2. apkdmverity/
  3. authfs/
  4. compos/
  5. demo/
  6. demo_native/
  7. docs/
  8. encryptedstore/
  9. javalib/
  10. launcher/
  11. libs/
  12. microdroid/
  13. microdroid_manager/
  14. pvmfw/
  15. rialto/
  16. service_vm/
  17. tests/
  18. virtualizationmanager/
  19. virtualizationservice/
  20. vm/
  21. vm_payload/
  22. vmbase/
  23. vmclient/
  24. zipfuse/
  25. .clang-format
  26. .gitignore
  27. Android.bp
  28. OWNERS
  29. PREUPLOAD.cfg
  30. README.md
  31. rustfmt.toml
  32. TEST_MAPPING
README.md

Android Virtualization Framework (AVF)

Android Virtualization Framework (AVF) provides secure and private execution environments for executing code. AVF is ideal for security-oriented use cases that require stronger isolation assurances over those offered by Android’s app sandbox.

Visit our public doc site to learn more about what AVF is, what it is for, and how it is structured. This repository contains source code for userspace components of AVF.

If you want a quick start, see the getting started guideline and follow the steps there.

For in-depth explanations about individual topics and components, visit the following links.

AVF components:

AVF APIs:

How-Tos: