[PATCH] D53906: [ELF] Allow configuring the TLS layout for an Android executable

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis added a subscriber: cryptoad.
eugenis added a comment.

@cryptoad
TLS_SLOT_TSAN is used in scudo, tsan and hwasan. AFAIK we don't yet depend on binary compatibility for either.

Incompatibility with dlopen is not great. At least scudo would need to support that case, I think - as a custom allocator in an android application.

Changing to a negative or smaller offset should be fine.

Note that HWASan needs to access this slot from instrumented code, so a dynamic offset will not do. It needs to be a compile-time constant.


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D53906