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Rollup merge of #142053 - heiher:loong32-none, r=wesleywiser

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Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: https://github.com/rust-lang/compiler-team/issues/865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.
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Jubilee 2025-06-08 17:17:53 -07:00 • committed by GitHub
commit 840baa46ff
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34 changed files with 181 additions and 53 deletions
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2
src/tools/build-manifest/src/main.rs
View file

@ -113,6 +113,8 @@ static TARGETS: &[&str] = &[
"i686-unknown-uefi",
"loongarch64-unknown-linux-gnu",
"loongarch64-unknown-linux-musl",
"loongarch32-unknown-none",
"loongarch32-unknown-none-softfloat",
"loongarch64-unknown-none",
"loongarch64-unknown-none-softfloat",
"m68k-unknown-linux-gnu",

1
src/tools/compiletest/src/common.rs
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@ -495,6 +495,7 @@ impl Config {
"arm64ec",
"riscv32",
"riscv64",
"loongarch32",
"loongarch64",
"s390x",
// These targets require an additional asm_experimental_arch feature.

2
src/tools/compiletest/src/directive-list.rs
View file

@ -73,6 +73,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
"ignore-linux",
"ignore-lldb",
"ignore-llvm-version",
"ignore-loongarch32",
"ignore-loongarch64",
"ignore-macabi",
"ignore-macos",
@ -196,6 +197,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
"only-i686-unknown-linux-gnu",
"only-ios",
"only-linux",
"only-loongarch32",
"only-loongarch64",
"only-loongarch64-unknown-linux-gnu",
"only-macos",

5
src/tools/miri/src/shims/alloc.rs
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@ -13,10 +13,11 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
// alignment requirement and size less than or equal to the size requested."
// So first we need to figure out what the limits are for "fundamental alignment".
// This is given by `alignof(max_align_t)`. The following list is taken from
// `library/std/src/sys/pal/common/alloc.rs` (where this is called `MIN_ALIGN`) and should
// `library/std/src/sys/alloc/mod.rs` (where this is called `MIN_ALIGN`) and should
// be kept in sync.
let max_fundamental_align = match this.tcx.sess.target.arch.as_ref() {
"x86" | "arm" | "mips" | "mips32r6" | "powerpc" | "powerpc64" | "wasm32" => 8,
"x86" | "arm" | "loongarch32" | "mips" | "mips32r6" | "powerpc" | "powerpc64"
| "wasm32" => 8,
"x86_64" | "aarch64" | "mips64" | "mips64r6" | "s390x" | "sparc64" | "loongarch64" =>
16,
arch => bug!("unsupported target architecture for malloc: `{}`", arch),