bitvec 1.0 fails on esp32 target `xtensa-esp32-none-elf` due to radium 0.7.0
TheButlah opened this issue · comments
The if_atomic! macro in radium 0.7.0 doesn't support the xtensa architecture, and as such I get these errors when trying to build with the esp32 toolchain:
Compiling radium v0.7.0
error[E0432]: unresolved imports `core::sync::atomic::AtomicI64`, `core::sync::atomic::AtomicU64`
--> /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/radium-0.7.0/src/lib.rs:53:34
|
53 | use core::sync::atomic::{AtomicI64, AtomicU64};
| ^^^^^^^^^ ^^^^^^^^^ no `AtomicU64` in `sync::atomic`
| |
| no `AtomicI64` in `sync::atomic`
|
help: a similar name exists in the module
|
53 | use core::sync::atomic::{AtomicI8, AtomicU64};
| ~~~~~~~~
help: a similar name exists in the module
|
53 | use core::sync::atomic::{AtomicI64, AtomicU8};
| ~~~~~~~~
error[E0412]: cannot find type `AtomicI64` in module `core::sync::atomic`
--> /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/radium-0.7.0/src/types.rs:52:41
|
52 | if atomic(64) { core::sync::atomic::AtomicI64 }
| ^^^^^^^^^ help: a struct with a similar name exists: `AtomicI16`
|
::: /home/runner/.rustup/toolchains/esp/lib/rustlib/src/rust/library/core/src/sync/atomic.rs:2741:1
|
2741 | / atomic_int! {
2742 | | cfg(target_has_atomic = "16"),
2743 | | cfg(target_has_atomic_equal_alignment = "16"),
2744 | | stable(feature = "integer_atomics_stable", since = "1.34.0"),
... |
2758 | | i16 AtomicI16 ATOMIC_I16_INIT
2759 | | }
| |_- similarly named struct `AtomicI16` defined here
error[E0412]: cannot find type `AtomicU64` in module `core::sync::atomic`
--> /home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/radium-0.7.0/src/types.rs:58:41
|
58 | if atomic(64) { core::sync::atomic::AtomicU64 }
| ^^^^^^^^^ help: a struct with a similar name exists: `AtomicU16`
|
::: /home/runner/.rustup/toolchains/esp/lib/rustlib/src/rust/library/core/src/sync/atomic.rs:2761:1
|
2761 | / atomic_int! {
2762 | | cfg(target_has_atomic = "16"),
2763 | | cfg(target_has_atomic_equal_alignment = "16"),
2764 | | stable(feature = "integer_atomics_stable", since = "1.34.0"),
... |
2778 | | u16 AtomicU16 ATOMIC_U16_INIT
2779 | | }
| |_- similarly named struct `AtomicU16` defined here
Would it be possible to upgrade bitvec to radium 1.0.0? It would be less brittle as it relies on cfg(target_has_atomic). This would bump the MSRV of bitvec to 1.60.
Hello! Sorry to necro an old issue, but I'm running into a similar problem trying to use bitvec in my project. I'm using a rust/llvm fork to target the NEC v810 CPU, which has atomics but is only 32-bit. It looks like radium assumes that an unrecognized target supports AtomicU64, which I don't think is easy for me to add.
My target environment uses some memory-mapped structs with lots of bitfields, so I'm planning to try other libraries or maybe just plumb it together manually. But I'd love if I could use bitvec on embedded hardware from the 90s.
