[ld] Consolidate build ID handling

The ld::ObserveBuildIdNote function existed but wasn't being used
or tested; it was a buggy implementation that was needlessly
complex to reuse elfldltl::ObserveBuildIdNote for little benefit.
So rewrite it to be simpler, and use it in all of bootstrap.h,
StartupLoad, and RemoteDecodedModule.  This can later be reused
by libdl too.

Bug: 42085436
Change-Id: I9a0c31d64a31c7c0c0da9d0bcaf1ecde472d4897
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1020512
Fuchsia-Auto-Submit: Roland McGrath <mcgrathr@google.com>
Reviewed-by: Caslyn Tonelli <caslyn@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
6 files changed
tree: 8a479d25fc98643312c2a9c578e0f317e1820043
  1. boards/
  2. build/
  3. bundles/
  4. docs/
  5. examples/
  6. infra/
  7. products/
  8. scripts/
  9. sdk/
  10. src/
  11. third_party/
  12. tools/
  13. zircon/
  14. .clang-format
  15. .clang-tidy
  16. .editorconfig
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gitmodules
  21. .gn
  22. .ignore
  23. analysis_options.yaml
  24. AUTHORS
  25. BUILD.gn
  26. CODE_OF_CONDUCT.md
  27. CONTRIBUTING.md
  28. fuchsia.code-workspace
  29. LICENSE
  30. OWNERS
  31. PATENTS
  32. pyproject.toml
  33. pyrightconfig.json
  34. README.md
  35. rustfmt.toml
  36. shac.star
  37. shac.textproto
README.md

Fuchsia

What is Fuchsia?

Fuchsia is an open source, general purpose operating system supporting modern 64-bit Intel and ARM processors.

We expect everyone interacting with our project to respect our code of conduct.

Read more about Fuchsia's principles.

How can I build and run Fuchsia?

See Getting Started.

Where can I learn more about Fuchsia?

See fuchsia.dev.