[Bug 271081] www/firefox: crashes on arm64 with ASLR enabled

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 18 Dec 2023 15:39:27 UTC

Jesper Schmitz Mouridsen <jsm@FreeBSD.org> changed:

           What    |Removed                     |Added
 Attachment #247095|0                           |1
        is obsolete|                            |
 Attachment #247100|0                           |1
        is obsolete|                            |
 Attachment #247141|                            |maintainer-approval?(gecko@
              Flags|                            |FreeBSD.org)

--- Comment #15 from Jesper Schmitz Mouridsen <jsm@FreeBSD.org> ---
Created attachment 247141
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=247141&action=edit
allows running with aslr and fixes jit..

The memory part MAP_FIXED is to avoid (desired != region) (do not know how that
relates to aslr but with this it runs with aslr), the jit code has to do some
cache sync in order to execute the wirte+exec pages, it was guarded out, and
the problem was masked under w^x because mprotect also does some cache
syncing.. ,thanks Kyle Evans.
Hopefully someone will pick this up for a test. Do not forget bug #275247 Only
tested on aarch64 rpi4 and rk3399.

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