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

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271081

--- Comment #14 from Jesper Schmitz Mouridsen <jsm@FreeBSD.org> ---
diff -r d80eefe94738 js/src/jit/arm64/vixl/MozCpu-vixl.cpp
--- a/js/src/jit/arm64/vixl/MozCpu-vixl.cpp     Tue Nov 28 21:01:37 2023 +0000
+++ b/js/src/jit/arm64/vixl/MozCpu-vixl.cpp     Mon Dec 18 08:06:04 2023 +0100
@@ -110,7 +110,7 @@
   FlushInstructionCache(GetCurrentProcess(), address, length);
 #elif defined(XP_DARWIN)
   sys_icache_invalidate(address, length);
-#elif defined(__aarch64__) && (defined(__linux__) || defined(__android__))
+#elif defined(__aarch64__) && (defined(__linux__) || defined(__android__) ||
defined(__FreeBSD__))
   // Implement the cache synchronisation for all targets where AArch64 is the
   // host, even if we're building the simulator for an AAarch64 host. This
   // allows for cases where the user wants to simulate code as well as run it

This one works for me as a single patch (i.e all other attempts can be
disregarded) did only a sparse test on an incremental build but all cache
related code was guarded out. Still needs +noaslr.

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