tree f53d24796e2c1c4eb90eb2bf354770133301b2b5
parent eed00513a1677fc548b00611e6a738ef4c18f571
author Hans Wennborg <hans@chromium.org> 1707925151 +0100
committer Copybara-Service <copybara-worker@google.com> 1708091701 -0800

Revert "[lld] enable fixup chains by default (#79894)"

This caused links to fail with:

  lld/MachO/Symbols.cpp:97:
  virtual uint64_t lld::macho::Defined::getVA() const:
  Assertion `target->usesThunks()' failed.

or crash when asserts are disabled. See comment on
https://github.com/llvm/llvm-project/pull/79894

> Enable chained fixups in lld when all platform and version criteria are
> met. This is an attempt at simplifying the logic used in ld 907:
>
> https://github.com/apple-oss-distributions/ld64/blob/93d74eafc37c0558b4ffb88a8bc15c17bed44a20/src/ld/Options.cpp#L5458-L5549
>
> Some changes were made to simplify the logic:
> - only enable chained fixups for macOS from 13.0 to avoid the arch check
> - only enable chained fixups for iphonesimulator from 16.0 to avoid the
> arch check
> - don't enable chained fixups for not specifically listed platforms
> - don't enable chained fixups for arm64_32

This reverts commit 775c2856fb32868f357a3ce3f2b4139541e12578.

GitOrigin-RevId: f55b79f59a77b4be586d649e9ced9f8667265011