[PATCH] D59780: Support Intel Control-flow Enforcement Technology

Tue May 28 19:32:14 PDT 2019

MaskRay added a comment.

In D59780#1520390 <https://reviews.llvm.org/D59780#1520390>, @xiangzhangllvm wrote:

> I'm sorry, I reflect the problem to some leaders and experts, but the PLT ABI is still undecided. The most concern come from the unknow risk of difference with GNU.

@xiangzhangllvm If it is still undecided, then there is still opportunity to fix :) IMHO tooling is still immature and currently very few tools understand `.plt.sec`.

I'd really like to see more discussions about this, e.g. https://groups.google.com/forum/#!topic/x86-64-abi/Z6GqQDy_NaI
If PLT entries should be aligned by 16 to maximize performance, shall we switch to 32-byte PLT entry? Xiang, can you raise a topic on https://sourceware.org/ml/gnu-gabi/2019-q2 or https://sourceware.org/ml/binutils/2019-05/

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D59780/new/

https://reviews.llvm.org/D59780