[ELF][AArch64] Do not treat missing build attributes as defined (#213600)

Even if an AArch64 build attributes section contains only private
subsections and does not define feature flags or PAuth information,
`lld` still checks the values defined in the GNU Program Properties
section against the build attribute defaults, producing warnings and
errors. The patch adjusts the handling of build attributes so that only
the existing attributes are used.

---
* https://github.com/ARM-software/abi-aa/blob/main/buildattr64/buildattr64.rst

GitOrigin-RevId: 9d72ffd00f1e4b9a4e19a59e84d29a6939c140e0
2 files changed
tree: 3d520d47e6e153a17216e1c51e70c0e42691859a
  1. cmake/
  2. COFF/
  3. Common/
  4. docs/
  5. ELF/
  6. include/
  7. MachO/
  8. MinGW/
  9. test/
  10. tools/
  11. unittests/
  12. utils/
  13. wasm/
  14. .clang-format
  15. .clang-tidy
  16. .gitignore
  17. CMakeLists.txt
  18. LICENSE.TXT
  19. Maintainers.md
  20. README.md
README.md

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.

Benchmarking

In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.

It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz

The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.