Hi Tomi, > Anyone have any idea if that's a larger problem, or simply something > nobody has written the small handcoded ASMs needed for ARMv5 or v4? > If latter, I might be able to wrap my head around this.
The problem you've got is related to segmented stack support. It need fix on 2 levels: - Rust - can be relatively easy fixed by providing (or patching) a target and marking it as a target which doesn't support segmented stacks, see example [1] Once it works you can play a bit to provide a correct implementation in record_sp.S and morestack.S - LLVM - as I remember some time ago LLVM generated a function prologue which uses the same instruction for any ARM device, may be that was patched in upstream, may be not. You can also ask Vladimir Pouzanov and zinc.rs [2] team, AFAIK they had the similar problem too and definitely have a workaround. [1] https://github.com/rust-lang/rust/blob/master/src/librustc_back/target/arm_apple_ios.rs#L33 [2] https://zinc.rs/ -- Valerii
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