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Disable NEON on musl ARMv7 #48466

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Mar 3, 2018
Merged

Disable NEON on musl ARMv7 #48466

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16 changes: 8 additions & 8 deletions src/librustc_back/target/armv7_unknown_linux_musleabihf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,13 +12,7 @@ use LinkerFlavor;
use target::{Target, TargetOptions, TargetResult};

pub fn target() -> TargetResult {
let mut base = super::linux_musl_base::opts();

// Most of these settings are copied from the armv7_unknown_linux_gnueabihf
// target.
base.features = "+v7,+vfp3,+neon".to_string();
base.cpu = "cortex-a8".to_string();
base.max_atomic_width = Some(64);
let base = super::linux_musl_base::opts();
Ok(Target {
// It's important we use "gnueabihf" and not "musleabihf" here. LLVM
// uses it to determine the calling convention and float ABI, and LLVM
Expand All @@ -33,9 +27,15 @@ pub fn target() -> TargetResult {
target_env: "musl".to_string(),
target_vendor: "unknown".to_string(),
linker_flavor: LinkerFlavor::Gcc,

// Most of these settings are copied from the armv7_unknown_linux_gnueabihf
// target.
options: TargetOptions {
features: "+v7,+vfp3,+d16,+thumb2,-neon".to_string(),
cpu: "generic".to_string(),
max_atomic_width: Some(64),
abi_blacklist: super::arm_base::abi_blacklist(),
.. base
},
}
})
}