[roll] Roll fuchsia [kernel][instrumentation] Revamp sancov

This revamps the SanitizerCoverage runtime support.  It no longer
uses preallocated space in the kernel's load image.  Instead, it
simply maps from normal VMOs into the kernel and keeps mapped
pages pinned.  To collect the data from PCs covered before the
VMOs are set up, a new scheme stores temporary counts in the
compile-time-allocated guard slots and then transfers them into
the final VMO data.  This means no hits are lost from the counts,
but does mean that PCs whose only hits are before the VMOs get
set up and mapped in will not be recorded.

Original-Bug: 89138
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/609543
Original-Revision: 78b9417c8f2aa6fcaa30c858e6f22dd95618cc85
GitOrigin-RevId: 705b4d0c9c33bfa4e1b224efa0b7d25fa4541487
Change-Id: I4acb8f3f330400a1dd03060507cd1754e7c3cce3
1 file changed
tree: e390fdaf2afdb94892870b307b0ac10b71ddf92d
  1. infra/
  2. third_party/
  3. cts
  4. firmware
  5. flower
  6. jiri.lock
  7. minimal
  8. prebuilts
  9. README.md
  10. stem
  11. test_durations
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 via the IRC channel #fuchsia on Freenode.

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.