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

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added a comment.

Yes I think you are right. We cannot simply increase the TCB size to 6 words. It is a ABI-breaking change.

What I'm currently seeking is a simple way to create executables/DSOs that are compatible on non-Android and Android, without introducing any new command line flag or a target-dependent logic. I believe it is OK to waste a few words on non-Android if we can achieve that goal. Another idea that is in line with that is to always set a >8 word alignment (you suggested 16, but I don't know why it has to be 16) to a TLS segment if ARM or AArch64. Maybe that could produce a binary that is compatible both Android and non-Android?


Repository:
  rLLD LLVM Linker

https://reviews.llvm.org/D53906