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Merged
rust-bors merged 1 commit into from
Jun 3, 2026
+31 −16
Merged

Promotes 5 Thumb-mode bare-metal Arm targets to Tier 2 #155763

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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/thumbv7a_none_eabi.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
llvm_target: "thumbv7a-none-eabi".into(),
metadata: TargetMetadata {
description: Some("Thumb-mode Bare Armv7-A".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/thumbv7a_none_eabihf.rs
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Expand Up @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
llvm_target: "thumbv7a-none-eabihf".into(),
metadata: TargetMetadata {
description: Some("Thumb-mode Bare Armv7-A, hardfloat".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/thumbv7r_none_eabi.rs
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Expand Up @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
llvm_target: "thumbv7r-none-eabi".into(),
metadata: TargetMetadata {
description: Some("Thumb-mode Bare Armv7-R".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/thumbv7r_none_eabihf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
llvm_target: "thumbv7r-none-eabihf".into(),
metadata: TargetMetadata {
description: Some("Thumb-mode Bare Armv7-R, hardfloat".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/thumbv8r_none_eabihf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ pub(crate) fn target() -> Target {
llvm_target: "thumbv8r-none-eabihf".into(),
metadata: TargetMetadata {
description: Some("Thumb-mode Bare Armv8-R, hardfloat".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
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15 changes: 15 additions & 0 deletions src/ci/docker/host-x86_64/dist-various-1/Dockerfile
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Expand Up @@ -114,11 +114,16 @@ ENV TARGETS=$TARGETS,riscv32imafc-unknown-none-elf
ENV TARGETS=$TARGETS,riscv64imac-unknown-none-elf
ENV TARGETS=$TARGETS,riscv64gc-unknown-none-elf
ENV TARGETS=$TARGETS,armv7r-none-eabi
ENV TARGETS=$TARGETS,thumbv7r-none-eabi
ENV TARGETS=$TARGETS,armv7r-none-eabihf
ENV TARGETS=$TARGETS,thumbv7r-none-eabihf
ENV TARGETS=$TARGETS,armv8r-none-eabihf
ENV TARGETS=$TARGETS,thumbv8r-none-eabihf
ENV TARGETS=$TARGETS,thumbv7neon-unknown-linux-gnueabihf
ENV TARGETS=$TARGETS,armv7a-none-eabi
ENV TARGETS=$TARGETS,thumbv7a-none-eabi
ENV TARGETS=$TARGETS,armv7a-none-eabihf
ENV TARGETS=$TARGETS,thumbv7a-none-eabihf

ENV CFLAGS_armv5te_unknown_linux_musleabi="-march=armv5te -marm -mfloat-abi=soft" \
CFLAGS_arm_unknown_linux_musleabi="-march=armv6 -marm" \
Expand All @@ -133,8 +138,18 @@ ENV CFLAGS_armv5te_unknown_linux_musleabi="-march=armv5te -marm -mfloat-abi=soft
CC_armv7a_none_eabihf=arm-none-eabi-gcc \
CFLAGS_armv7a_none_eabi=-march=armv7-a \
CFLAGS_armv7a_none_eabihf=-march=armv7-a+fp \
CC_thumbv7a_none_eabi=arm-none-eabi-gcc \
CC_thumbv7a_none_eabihf=arm-none-eabi-gcc \
CFLAGS_thumbv7a_none_eabi=-march=armv7-a \
CFLAGS_thumbv7a_none_eabihf="-march=armv7-a+fp -mfpu=vfpv3-d16" \
CC_thumbv7r_none_eabi=arm-none-eabi-gcc \
CC_thumbv7r_none_eabihf=arm-none-eabi-gcc \
CFLAGS_thumbv7r_none_eabi=-march=armv7-r \
CFLAGS_thumbv7r_none_eabihf="-march=armv7-r+fp -mfpu=vfpv3-d16" \
CC_armv8r_none_eabihf=arm-none-eabi-gcc \
CFLAGS_armv8r_none_eabihf="-march=armv8-r+fp.sp -mfpu=fp-armv8" \
CC_thumbv8r_none_eabihf=arm-none-eabi-gcc \
CFLAGS_thumbv8r_none_eabihf="-march=armv8-r+fp.sp -mfpu=fp-armv8" \
CC_aarch64_unknown_none_softfloat=aarch64-none-elf-gcc \
CFLAGS_aarch64_unknown_none_softfloat=-mstrict-align -march=armv8-a+nofp+nosimd \
CC_aarch64_unknown_none=aarch64-none-elf-gcc \
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10 changes: 5 additions & 5 deletions src/doc/rustc/src/platform-support.md
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Expand Up @@ -174,6 +174,11 @@ target | std | notes
[`armv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | Bare Armv7-R
[`armv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | Bare Armv7-R, hardfloat
[`armv8r-none-eabihf`](platform-support/armv8r-none-eabihf.md) | * | Bare Armv8-R, hardfloat
[`thumbv7a-none-eabi`](platform-support/armv7a-none-eabi.md) | * | Thumb-mode Bare Armv7-A
[`thumbv7a-none-eabihf`](platform-support/armv7a-none-eabi.md) | * | Thumb-mode Bare Armv7-A, hardfloat
[`thumbv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | Thumb-mode Bare Armv7-R
[`thumbv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | Thumb-mode Bare Armv7-R, hardfloat
[`thumbv8r-none-eabihf`](platform-support/armv8r-none-eabihf.md) | * | Thumb-mode Bare Armv8-R, hardfloat
`i586-unknown-linux-gnu` | ✓ | 32-bit Linux (kernel 3.2+, glibc 2.17, original Pentium) [^x86_32-floats-x87]
`i586-unknown-linux-musl` | ✓ | 32-bit Linux (musl 1.2.5, original Pentium) [^x86_32-floats-x87]
[`i686-linux-android`](platform-support/android.md) | ✓ | 32-bit x86 Android ([Pentium 4 plus various extensions](https://developer.android.com/ndk/guides/abis.html#x86)) [^x86_32-floats-return-ABI]
Expand Down Expand Up @@ -419,8 +424,6 @@ target | std | host | notes
[`thumbv5te-none-eabi`](platform-support/armv5te-none-eabi.md) | * | | Thumb-mode Bare Armv5TE
[`thumbv6-none-eabi`](platform-support/armv6-none-eabi.md) | * | | Thumb-mode Bare Armv6
[`thumbv6m-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv6M with NuttX
[`thumbv7a-none-eabi`](platform-support/armv7a-none-eabi.md) | * | | Thumb-mode Bare Armv7-A
[`thumbv7a-none-eabihf`](platform-support/armv7a-none-eabi.md) | * | | Thumb-mode Bare Armv7-A, hardfloat
[`thumbv7a-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv7-A with NuttX
[`thumbv7a-nuttx-eabihf`](platform-support/nuttx.md) | ✓ | | ARMv7-A with NuttX, hardfloat
`thumbv7a-pc-windows-msvc` | | |
Expand All @@ -429,12 +432,9 @@ target | std | host | notes
[`thumbv7em-nuttx-eabihf`](platform-support/nuttx.md) | ✓ | | ARMv7EM with NuttX, hardfloat
[`thumbv7m-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv7M with NuttX
`thumbv7neon-unknown-linux-musleabihf` | ? | | Thumb2-mode Armv7-A Linux with NEON, musl 1.2.5
[`thumbv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | | Thumb-mode Bare Armv7-R
[`thumbv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | | Thumb-mode Bare Armv7-R, hardfloat
[`thumbv8m.base-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv8M Baseline with NuttX
[`thumbv8m.main-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv8M Mainline with NuttX
[`thumbv8m.main-nuttx-eabihf`](platform-support/nuttx.md) | ✓ | | ARMv8M Mainline with NuttX, hardfloat
[`thumbv8r-none-eabihf`](platform-support/armv8r-none-eabihf.md) | * | | Thumb-mode Bare Armv8-R, hardfloat
[`wasm64-unknown-unknown`](platform-support/wasm64-unknown-unknown.md) | ? | | WebAssembly
[`wasm32-wali-linux-musl`](platform-support/wasm32-wali-linux.md) | ? | | WebAssembly with [WALI](https://github.com/arjunr2/WALI)
[`wasm32-wasip3`](platform-support/wasm32-wasip3.md) | ✓ | | WebAssembly with WASIp3
Expand Down
3 changes: 3 additions & 0 deletions src/doc/rustc/src/platform-support/arm-none-eabi.md
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Expand Up @@ -13,10 +13,13 @@ their own document.

- Arm A-Profile Architectures
- [`armv7a-none-eabi`](armv7a-none-eabi.md)
- [`thumbv7a-none-eabi` and `thumbv7a-none-eabihf`](armv7a-none-eabi.md)
- Arm R-Profile Architectures
- [`armv7r-none-eabi` and `armv7r-none-eabihf`](armv7r-none-eabi.md)
- [`armebv7r-none-eabi` and `armebv7r-none-eabihf`](armebv7r-none-eabi.md)
- [`armv8r-none-eabihf`](armv8r-none-eabihf.md)
- [`thumbv7r-none-eabi` and `thumbv7r-none-eabihf`](armv7r-none-eabi.md)
- [`thumbv8r-none-eabihf`](armv8r-none-eabihf.md)
- Arm M-Profile Architectures
- [`thumbv6m-none-eabi`](thumbv6m-none-eabi.md)
- [`thumbv7m-none-eabi`](thumbv7m-none-eabi.md)
Expand Down
3 changes: 1 addition & 2 deletions src/doc/rustc/src/platform-support/armv7a-none-eabi.md
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@@ -1,7 +1,6 @@
# `armv7a-none-eabi*` and `thumbv7a-none-eabi*`

* **Tier: 2** (`armv7a-none-eabi` and `armv7a-none-eabihf`)
* **Tier: 3** (`thumbv7a-none-eabi` and `thumbv7a-none-eabihf`)
* **Tier: 2**
* **Library Support:** core and alloc (bare-metal, `#![no_std]`)

Bare-metal target for CPUs in the Armv7-A architecture family, supporting dual
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3 changes: 1 addition & 2 deletions src/doc/rustc/src/platform-support/armv7r-none-eabi.md
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@@ -1,7 +1,6 @@
# `armv7r-none-eabi*` and `thumbv7r-none-eabi*`

* **Tier: 2** (`armv7r-none-eabi` and `armv7r-none-eabihf`)
* **Tier: 3** (`thumbv7r-none-eabi` and `thumbv7r-none-eabihf`)
* **Tier: 2**
* **Library Support:** core and alloc (bare-metal, `#![no_std]`)

Bare-metal target for CPUs in the Armv7-R architecture family, supporting dual
Expand Down
3 changes: 1 addition & 2 deletions src/doc/rustc/src/platform-support/armv8r-none-eabihf.md
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@@ -1,7 +1,6 @@
# `armv8r-none-eabihf` and `thumbv8r-none-eabihf`

* **Tier: 2**: `armv8r-none-eabihf`
* **Tier: 3**: `thumbv8r-none-eabihf`
* **Tier: 2**
* **Library Support:** core and alloc (bare-metal, `#![no_std]`)

Bare-metal target for CPUs in the Armv8-R architecture family, supporting dual
Expand Down
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