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Set max-atomic-width for armv4 and armv5 to zero, to disable atomics

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Jonathan 'theJPster' Pallant 2025-11-23 18:29:59 +00:00
parent dbcb048e28
commit 99a393444c
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4 changed files with 4 additions and 0 deletions
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1
compiler/rustc_target/src/spec/targets/armv4t_none_eabi.rs
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@ -29,6 +29,7 @@ pub(crate) fn target() -> Target {
asm_args: cvs!["-mthumb-interwork", "-march=armv4t", "-mlittle-endian",],
features: "+soft-float,+strict-align".into(),
atomic_cas: false,
max_atomic_width: Some(0),
has_thumb_interworking: true,
..base::arm_none::opts()
},

1
compiler/rustc_target/src/spec/targets/armv5te_none_eabi.rs
View file

@ -20,6 +20,7 @@ pub(crate) fn target() -> Target {
asm_args: cvs!["-mthumb-interwork", "-march=armv5te", "-mlittle-endian",],
features: "+soft-float,+strict-align".into(),
atomic_cas: false,
max_atomic_width: Some(0),
has_thumb_interworking: true,
..base::arm_none::opts()
},

1
compiler/rustc_target/src/spec/targets/thumbv4t_none_eabi.rs
View file

@ -29,6 +29,7 @@ pub(crate) fn target() -> Target {
asm_args: cvs!["-mthumb-interwork", "-march=armv4t", "-mlittle-endian",],
features: "+soft-float,+strict-align".into(),
atomic_cas: false,
max_atomic_width: Some(0),
has_thumb_interworking: true,
..base::arm_none::opts()
},

1
compiler/rustc_target/src/spec/targets/thumbv5te_none_eabi.rs
View file

@ -20,6 +20,7 @@ pub(crate) fn target() -> Target {
asm_args: cvs!["-mthumb-interwork", "-march=armv5te", "-mlittle-endian",],
features: "+soft-float,+strict-align".into(),
atomic_cas: false,
max_atomic_width: Some(0),
has_thumb_interworking: true,
..base::arm_none::opts()
},