[roll] Roll fuchsia [kernel] Implement KTrace writes for per-CPU mode

This CL adds support for writing trace records to the per-CPU version
of KTrace by implementing the fxt::Writer trait. Concretely, this
meant implementing:
* A PendingCommit object, which implements the fxt::Writer::Reservation
  trait and ensures that interrupts remain off for the duration of a
  write.
* The KTrace::Reserve method, which creates a PendingCommit whose size
  is computed from an fxt header.

Original-Bug: 404539312
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1249271
Original-Revision: 0a0eaf460dc7e06ae117ef27b8afafde0de74046
GitOrigin-RevId: 6aaf1fefcc69d4f06acf59b6b9e2cb0c4601c6be
Change-Id: I6c29ab0994b3d757ba8e3756f535826f5b5c7baa
1 file changed
tree: bf6346a7ea33abc274bd768fd42243526ea646b0
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. cts
  6. firmware
  7. flower
  8. jiri.lock
  9. MILESTONE
  10. minimal
  11. prebuilts
  12. README.md
  13. stem
  14. test_durations
  15. toolchain
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance in one of the communication channels documented at get involved.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.