linux,arm: support memory tagging

64-bit ARM's Top-Byte-Ignore enables features such as memory tagging.
https://www.kernel.org/doc/html/latest/arm64/tagged-address-abi.html

Android 11 will start using memory tagging on some devices.
https://source.android.com/devices/tech/debug/tagged-pointers

Crashpad needs to remove the tags from pointers before comparing to
addresses or using with system calls.

Bug: crashpad:364
Change-Id: I67c6b9a4a86d090e1d139de727eb06d9e222cc25
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3078500
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
14 files changed
tree: 95a4d1641bb495c9fe86e7c5161932df9ae89908
  1. .clang-format
  2. .gitattributes
  3. .gitignore
  4. .gn
  5. .style.yapf
  6. .vpython
  7. AUTHORS
  8. BUILD.gn
  9. CONTRIBUTORS
  10. DEPS
  11. LICENSE
  12. README.md
  13. build/
  14. client/
  15. codereview.settings
  16. compat/
  17. doc/
  18. handler/
  19. infra/
  20. minidump/
  21. navbar.md
  22. package.h
  23. snapshot/
  24. test/
  25. third_party/
  26. tools/
  27. util/
README.md

Crashpad

Crashpad is a crash-reporting system.

Documentation

Source Code

Crashpad’s source code is hosted in a Git repository at https://chromium.googlesource.com/crashpad/crashpad.

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