[PATCH] D98679: [ELF] Change --shuffle-sections=<seed> to --shuffle-sections=<section-glob>=<seed>

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
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`--shuffle-sections=<seed>` applies on all sections.  The new
`--shuffle-sections=<section-glob>=<seed>` makes shuffling selective.  To the
best of my knowledge, the option is only used as debugging, so just drop the
original form.

`--shuffle-sections .init_array*=-1` `--shuffle-sections .fini_array*=-1`.
reverses static constructors/destructors of the same priority.
Useful to detect some static initialization order fiasco.

`--shuffle-sections .data*=-1`
reverses `.data*` sections. Useful to detect unfunded pointer comparison results
of two unrelated objects.

If certain sections have an intrinsic order, the old form cannot be used.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98679

Files:
  lld/ELF/Config.h
  lld/ELF/Driver.cpp
  lld/ELF/Options.td
  lld/ELF/Writer.cpp
  lld/docs/ReleaseNotes.rst
  lld/docs/ld.lld.1
  lld/test/ELF/shuffle-sections-init-fini.s
  lld/test/ELF/shuffle-sections.s

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