Trevor Gross 58bef69b81 compiler-builtins: Resolve unsafe_op_in_unsafe_fn on Arm32 Android
There are a few places that violate this lint, which showed up in
rust-lang/rust CI (the relevent module is gated behind
`kernel_user_helpers` which is only set for `armv4t`, `armv5te`, and
`arm-linux-androideabi`; none of these are tested in compiler-builtins
CI). Add new `unsafe { /* ... */ }` blocks where needed to address this.

Some blocks should get a more thorough review of their preconditions, so
their safety comments are left as `FIXME`s.
2025-06-09 04:46:52 +00:00

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