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From: William Roberts <bill.c.roberts@gmail.com>
To: libffi-discuss@sourceware.org
Subject: Enabling AARCH64 BTI
Date: Tue, 6 Feb 2024 13:00:35 -0600	[thread overview]
Message-ID: <CAFftDdqgemTATsX2DMQ-fH=Sthn=k7gUtxJHQtS3oratN-+6vQ@mail.gmail.com> (raw)

I was looking at packages that don't declare BTI in the GNU Notes
section of the ELF file, and found libffi was missing that.
Investigating libffi, it enables BTI, but does not add it to the notes
section and if it's not in the notes section the linker/loader will
disable BTI for the target process.

https://github.com/libffi/libffi/pull/822

Here are some helpful notes and details on it as explained by others:
  - https://maskray.me/blog/2023-03-05-linker-notes-on-aarch64
  - https://reviews.llvm.org/D62609

Thanks,
Bill

             reply	other threads:[~2024-02-06 19:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-06 19:00 William Roberts [this message]
2024-02-06 21:10 ` DJ Delorie
2024-02-06 22:26   ` William Roberts
2024-02-06 22:36     ` DJ Delorie
2024-02-06 23:24       ` William Roberts

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