[ELF] Quote the value in "unknown -z" diagnostics (#213572)

To make stray whitespace more visible (see #212523)
```
$ echo end > tmp.f90 &&  flang -fuse-ld=lld  -Wl,"-z execstack" tmp.f90
ld.lld: warning: unknown -z value:  execstack
```

Drop the colon (colon is typically used without quotes in lld/ELF
diagnostics).

Change ErrAlways to Err so that --noinhibit-exec downgrades the errors
to warnings. Read --noinhibit-exec before readConfigs, as Err depends on
it.

GitOrigin-RevId: 9cb3a6ed4f4eecb78c41e589341263c2d0cecd36
14 files changed
tree: 30dd43495d50891dc6887fe283a200a5ce7b2260
  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.