Upgrade the crosstool for the `loongarch64-unknown-linux-gnu` target

[heiher]

Checklist

• I've looked through the issues and pull requests for similar reports

Describe your issue

In this example, the LoongArch compiler generates an R_LARCH_64_PCREL relocation for 1b - .. Unfortunately, older binutils linker does not support R_LARCH_64_PCREL and merely issue a warning instead of failing, leading to incorrect values in the linked executable.

fn main() {
    unsafe {
        core::arch::asm!(
            r#"
            1:
            nop
            .pushsection jump_table,  "awR"
            .balign 8
            .quad 1b - .
            .popsection
            "#
        );
    }
}

What target(s) are you cross-compiling for?

loongarch64-unknown-linux-gnu

Which operating system is the host (e.g computer cross is on) running?

• macOS
• Windows
• Linux / BSD
• other OS (specify in description)

What architecture is the host?

• x86_64 / AMD64
• arm32
• arm64 (including Mac M1)

What container engine is cross using?

• docker
• podman
• other container engine (specify in description)

cross version

cross 0.2.5 (7b79041 2024-07-11)

Example

cross build --target=loongarch64-unknown-linux-gnu

Additional information / notes

No response

[mcandre]

Rust 1.81.0 promotes loongarch (musl) to tier 2.

https://github.com/rust-lang/rust/releases/tag/1.81.0

[heiher]

Rust 1.81.0 promotes loongarch (musl) to tier 2.

https://github.com/rust-lang/rust/releases/tag/1.81.0

I'll add support for the loongarch64-unknown-linux-musl.