diff options
| -rw-r--r-- | src/librustc_target/spec/msp430_none_elf.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/librustc_target/spec/msp430_none_elf.rs b/src/librustc_target/spec/msp430_none_elf.rs index 0958a958986..d9ab2384491 100644 --- a/src/librustc_target/spec/msp430_none_elf.rs +++ b/src/librustc_target/spec/msp430_none_elf.rs @@ -35,9 +35,14 @@ pub fn target() -> TargetResult { no_integrated_as: true, // There are no atomic CAS instructions available in the MSP430 - // instruction set - max_atomic_width: Some(16), + // instruction set, and the LLVM backend doesn't currently support + // compiler fences so the Atomic* API is missing on this target. + // When the LLVM backend gains support for compile fences uncomment + // the `singlethread: true` line and set `max_atomic_width` to + // `Some(16)`. + max_atomic_width: Some(0), atomic_cas: false, + // singlethread: true, // Because these devices have very little resources having an // unwinder is too onerous so we default to "abort" because the |