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Merged
rust-bors merged 2 commits into from
Aug 4, 2026
Merged

Promote loongarch32-unknown-none* to Tier 2 #159595

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40d419f
ci: loongarch64-linux: Bump binutils to 2.46.1 and gcc to 16.1
heiher Jul 17, 2026
e9eb770
Promote loongarch32-unknown-none* to Tier 2
heiher Jul 20, 2026
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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/targets/loongarch32_unknown_none.rs
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Expand Up @@ -8,7 +8,7 @@ pub(crate) fn target() -> Target {
llvm_target: "loongarch32-unknown-none".into(),
metadata: TargetMetadata {
description: Some("Freestanding/bare-metal LoongArch32".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/loongarch32_unknown_none_softfloat.rs
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Expand Up @@ -8,7 +8,7 @@ pub(crate) fn target() -> Target {
llvm_target: "loongarch32-unknown-none".into(),
metadata: TargetMetadata {
description: Some("Freestanding/bare-metal LoongArch32 softfloat".into()),
tier: Some(3),
tier: Some(2),
host_tools: Some(false),
std: Some(false),
},
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8 changes: 4 additions & 4 deletions src/ci/docker/README.md
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Expand Up @@ -261,9 +261,9 @@ For targets: `loongarch64-unknown-linux-gnu`
- Target options > Bitness = 64-bit
- Operating System > Target OS = linux
- Operating System > Linux kernel version = 5.19.16
- Binary utilities > Version of binutils = 2.45
- Binary utilities > Version of binutils = 2.46.1
- C-library > glibc version = 2.36
- C compiler > gcc version = 15.2.0
- C compiler > gcc version = 16.1.0
- C compiler > C++ = ENABLE -- to cross compile LLVM

### `loongarch64-unknown-linux-musl.defconfig`
Expand All @@ -277,9 +277,9 @@ For targets: `loongarch64-unknown-linux-musl`
- Target options > Bitness = 64-bit
- Operating System > Target OS = linux
- Operating System > Linux kernel version = 5.19.16
- Binary utilities > Version of binutils = 2.45
- Binary utilities > Version of binutils = 2.46.1
- C-library > musl version = 1.2.5
- C compiler > gcc version = 15.2.0
- C compiler > gcc version = 16.1.0
- C compiler > C++ = ENABLE -- to cross compile LLVM

### `mips-linux-gnu.defconfig`
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18 changes: 15 additions & 3 deletions src/ci/docker/host-x86_64/dist-loongarch64-linux/Dockerfile
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Expand Up @@ -3,9 +3,9 @@ FROM ubuntu:22.04
COPY scripts/cross-apt-packages.sh /scripts/
RUN sh /scripts/cross-apt-packages.sh

COPY scripts/crosstool-ng.sh /scripts/
COPY scripts/crosstool-ng-git.sh /scripts/
COPY scripts/crosstool-ng-sha256-20260705.diff /scripts/
RUN sh /scripts/crosstool-ng.sh
RUN sh /scripts/crosstool-ng-git.sh

COPY scripts/rustbuild-setup.sh /scripts/
RUN sh /scripts/rustbuild-setup.sh
Expand Down Expand Up @@ -39,12 +39,24 @@ ENV CC_loongarch64_unknown_none=loongarch64-unknown-linux-gnu-gcc \
AR_loongarch64_unknown_none_softfloat=loongarch64-unknown-linux-gnu-ar \
CXX_loongarch64_unknown_none_softfloat=loongarch64-unknown-linux-gnu-g++ \
CFLAGS_loongarch64_unknown_none_softfloat="-ffreestanding -mabi=lp64s -mfpu=none" \
CXXFLAGS_loongarch64_unknown_none_softfloat="-ffreestanding -mabi=lp64s -mfpu=none"
CXXFLAGS_loongarch64_unknown_none_softfloat="-ffreestanding -mabi=lp64s -mfpu=none" \
CC_loongarch32_unknown_none=loongarch64-unknown-linux-gnu-gcc \
AR_loongarch32_unknown_none=loongarch64-unknown-linux-gnu-ar \
CXX_loongarch32_unknown_none=loongarch64-unknown-linux-gnu-g++ \
CFLAGS_loongarch32_unknown_none="-ffreestanding -march=la32rv1.0 -mabi=ilp32d" \
CXXFLAGS_loongarch32_unknown_none="-ffreestanding -march=la32rv1.0 -mabi=ilp32d" \
CC_loongarch32_unknown_none_softfloat=loongarch64-unknown-linux-gnu-gcc \
AR_loongarch32_unknown_none_softfloat=loongarch64-unknown-linux-gnu-ar \
CXX_loongarch32_unknown_none_softfloat=loongarch64-unknown-linux-gnu-g++ \
CFLAGS_loongarch32_unknown_none_softfloat="-ffreestanding -march=la32rv1.0 -mabi=ilp32s -mfpu=none" \
CXXFLAGS_loongarch32_unknown_none_softfloat="-ffreestanding -march=la32rv1.0 -mabi=ilp32s -mfpu=none"

ENV HOSTS=loongarch64-unknown-linux-gnu
ENV TARGETS=$HOSTS
ENV TARGETS=$TARGETS,loongarch64-unknown-none
ENV TARGETS=$TARGETS,loongarch64-unknown-none-softfloat
ENV TARGETS=$TARGETS,loongarch32-unknown-none
ENV TARGETS=$TARGETS,loongarch32-unknown-none-softfloat

ENV RUST_CONFIGURE_ARGS="--enable-extended \
--enable-full-tools \
Expand Down
4 changes: 2 additions & 2 deletions src/ci/docker/host-x86_64/dist-loongarch64-linux/loongarch64-unknown-linux-gnu.defconfig
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Expand Up @@ -14,7 +14,7 @@ CT_KERNEL_LINUX=y
CT_LINUX_V_5_19=y
CT_LINUX_VERSION="5.19.16"
CT_GLIBC_V_2_36=y
CT_BINUTILS_V_2_45=y
CT_GCC_V_15=y
CT_BINUTILS_V_2_46=y
CT_GCC_V_16=y
CT_CC_GCC_ENABLE_DEFAULT_PIE=y
CT_CC_LANG_CXX=y
4 changes: 2 additions & 2 deletions src/ci/docker/host-x86_64/dist-loongarch64-musl/Dockerfile
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Expand Up @@ -3,9 +3,9 @@ FROM ubuntu:22.04
COPY scripts/cross-apt-packages.sh /scripts/
RUN sh /scripts/cross-apt-packages.sh

COPY scripts/crosstool-ng.sh /scripts/
COPY scripts/crosstool-ng-git.sh /scripts/
COPY scripts/crosstool-ng-sha256-20260705.diff /scripts/
RUN sh /scripts/crosstool-ng.sh
RUN sh /scripts/crosstool-ng-git.sh

COPY scripts/rustbuild-setup.sh /scripts/
RUN sh /scripts/rustbuild-setup.sh
Expand Down
4 changes: 2 additions & 2 deletions src/ci/docker/host-x86_64/dist-loongarch64-musl/loongarch64-unknown-linux-musl.defconfig
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Expand Up @@ -15,8 +15,8 @@ CT_LINUX_V_5_19=y
CT_LINUX_VERSION="5.19.16"
CT_LIBC_MUSL=y
CT_MUSL_V_1_2_5=y
CT_BINUTILS_V_2_45=y
CT_GCC_V_15=y
CT_BINUTILS_V_2_46=y
CT_GCC_V_16=y
CT_CC_GCC_ENABLE_DEFAULT_PIE=y
CT_CC_LANG_CXX=y
CT_GETTEXT_NEEDED=y
30 changes: 30 additions & 0 deletions src/ci/docker/scripts/crosstool-ng-git.sh
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@@ -0,0 +1,30 @@
#!/bin/sh
set -ex

# ignore-tidy-file-linelength

URL=https://github.com/crosstool-ng/crosstool-ng
REV=27cd8380e72bb1cf3e7cf4a06a9cdbdc57df6f72

mkdir crosstool-ng
cd crosstool-ng
git init
git fetch --depth=1 ${URL} ${REV}
git reset --hard FETCH_HEAD

# https://github.com/crosstool-ng/crosstool-ng/issues/1832
# "download source of zlib is invalid now"
sed -e "s|zlib.net/'|zlib.net/fossils'|" -i packages/zlib/package.desc

# FIXME(#158718): patch crosstools-ng known-good kernel artifact SHA256
# checksums to the artifacts we mirror in `ci-mirrors`.
# See
# <https://github.com/rust-lang/ci-mirrors/blob/b474b4bb35108dab668907172c858854f209c809/files/rustc/kernel.toml>.
patch -p1 </scripts/crosstool-ng-sha256-20260705.diff

./bootstrap
./configure --prefix=/usr/local
make -j$(nproc)
make install
cd ..
rm -rf crosstool-ng
4 changes: 2 additions & 2 deletions src/doc/rustc/src/platform-support.md
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Expand Up @@ -187,6 +187,8 @@ target | std | notes
[`i686-unknown-freebsd`](platform-support/freebsd.md) | ✓ | 32-bit x86 FreeBSD (Pentium 4) [^x86_32-floats-return-ABI]
`i686-unknown-linux-musl` | ✓ | 32-bit Linux with musl 1.2.5 (Pentium 4) [^x86_32-floats-return-ABI]
[`i686-unknown-uefi`](platform-support/unknown-uefi.md) | ? | 32-bit UEFI (Pentium 4, softfloat) [^win32-msvc-alignment]
[`loongarch32-unknown-none`](platform-support/loongarch-none.md) | * | LoongArch32 Bare-metal (ILP32D ABI)
[`loongarch32-unknown-none-softfloat`](platform-support/loongarch-none.md) | * | LoongArch32 Bare-metal (ILP32S ABI)
[`loongarch64-unknown-none`](platform-support/loongarch-none.md) | * | LoongArch64 Bare-metal (LP64D ABI)
[`loongarch64-unknown-none-softfloat`](platform-support/loongarch-none.md) | * | LoongArch64 Bare-metal (LP64S ABI)
[`nvptx64-nvidia-cuda`](platform-support/nvptx64-nvidia-cuda.md) | * | --emit=asm generates PTX code that [runs on NVIDIA GPUs]
Expand Down Expand Up @@ -352,8 +354,6 @@ target | std | host | notes
[`i686-win7-windows-msvc`](platform-support/win7-windows-msvc.md) | ✓ | | 32-bit Windows 7 support [^x86_32-floats-return-ABI] [^win32-msvc-alignment]
[`i686-wrs-vxworks`](platform-support/vxworks.md) | ✓ | | [^x86_32-floats-return-ABI]
[`loongarch64-unknown-linux-ohos`](platform-support/openharmony.md) | ✓ | | LoongArch64 OpenHarmony
[`loongarch32-unknown-none`](platform-support/loongarch-none.md) | * | | LoongArch32 Bare-metal (ILP32D ABI)
[`loongarch32-unknown-none-softfloat`](platform-support/loongarch-none.md) | * | | LoongArch32 Bare-metal (ILP32S ABI)
[`m68k-unknown-linux-gnu`](platform-support/m68k-unknown-linux-gnu.md) | ? | | Motorola 680x0 Linux
[`m68k-unknown-none-elf`](platform-support/m68k-unknown-none-elf.md) | | | Motorola 680x0
`mips-unknown-linux-gnu` | ✓ | ✓ | MIPS Linux (kernel 4.4, glibc 2.23) [^snan-inverted]
Expand Down
4 changes: 2 additions & 2 deletions src/doc/rustc/src/platform-support/loongarch-none.md
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Expand Up @@ -4,8 +4,8 @@ Freestanding/bare-metal LoongArch binaries in ELF format: firmware, kernels, etc

| Target | Description | Tier |
|--------|-------------|------|
| `loongarch32-unknown-none` | LoongArch 32-bit, ILP32D ABI (freestanding, hard-float) | Tier 3 |
| `loongarch32-unknown-none-softfloat` | LoongArch 32-bit, ILP32S ABI (freestanding, soft-float) | Tier 3 |
| `loongarch32-unknown-none` | LoongArch 32-bit, ILP32D ABI (freestanding, hard-float) | Tier 2 |
| `loongarch32-unknown-none-softfloat` | LoongArch 32-bit, ILP32S ABI (freestanding, soft-float) | Tier 2 |
| `loongarch64-unknown-none` | LoongArch 64-bit, LP64D ABI (freestanding, hard-float) | Tier 2 |
| `loongarch64-unknown-none-softfloat` | LoongArch 64-bit, LP64S ABI (freestanding, soft-float) | Tier 2 |

Expand Down
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