[swift-users] Pointer not sufficiently aligned for Swift-2.2/ARM

Jason Pepas jasonpepas at gmail.com
Sun Apr 17 11:34:27 CDT 2016


note: I've updated the README.md of the scripts repo with explicit
instructions on how to reproduce exactly what I've done:

https://github.com/cellularmitosis/swift-build-scripts/blob/master/README.md

this was built on a raspbian/jessie install on a Raspberry Pi 3 with the
clang-3.7 package installed.


On Sun, Apr 17, 2016 at 11:22 AM, Jason Pepas <jasonpepas at gmail.com> wrote:

> Hi,
>
> I'm trying to create a swift 2.2 build for armhf (raspberry pi), and I've
> run into the following error:
>
> https://gist.github.com/cellularmitosis/5493f105fba36a70bdb8cadbcc9b17df
>
> swift:
> /home/cell/sda1/3/swift_src/llvm/include/llvm/ADT/PointerIntPair.h:114:
> void llvm::PointerIntPair<swift::ProtocolConformance *, 2,
> swift::ConformanceKind,
> llvm::PointerLikeTypeTraits<swift::ProtocolConformance *>
> >::setPointerAndInt(PointerTy, IntType) [PointerTy =
> swift::ProtocolConformance *, IntBits = 2, IntType =
> swift::ConformanceKind, PtrTraits =
> llvm::PointerLikeTypeTraits<swift::ProtocolConformance *>]: Assertion
> `(PtrWord & ~PointerBitMask) == 0 && "Pointer is not sufficiently aligned"'
> failed.
>
>
> I'm guessing that this is generally a problem for any 32-bit architecture
> for swift.
>
>
> Here's a reference to a similar error from a FreeBSD clang bug report from
> 2013 (also built on raspberry pi):
>
> https://llvm.org/bugs/show_bug.cgi?id=15696
>
> However, it looks like the bug became unreproducible, so they didn't
> pursue it.
>
>
> This build was created using the following scripts:
>
>
> https://github.com/cellularmitosis/swift-build-scripts/blob/master/arm/build.sh
>
> sources were fetched via:
>
>
> https://github.com/cellularmitosis/swift-build-scripts/blob/master/arm/fetch.sh
>
> according to this list of SHA's:
>
>
> https://github.com/cellularmitosis/swift-build-scripts/blob/master/arm/shas.bash
>
>
> Thanks,
> Jason Pepas
>
>
>
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