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Rollup merge of #108722 - petrhosek:fuchsia-riscv, r=petrochenkov

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Support for Fuchsia RISC-V target

Fuchsia is in the process of implementing the RISC-V support. This change implements the minimal Rust compiler support. The support for building runtime libraries will be implemented in follow up changes once Fuchsia SDK has the RISC-V support.
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Matthias Krüger 2023-03-14 17:40:03 +01:00 committed by GitHub
commit e006ee9be8
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3 changed files with 21 additions and 0 deletions
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1
compiler/rustc_target/src/spec/mod.rs
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@ -1115,6 +1115,7 @@ fn $module() {
// FIXME(#106649): Remove aarch64-fuchsia in favor of aarch64-unknown-fuchsia
("aarch64-fuchsia", aarch64_fuchsia),
("aarch64-unknown-fuchsia", aarch64_unknown_fuchsia),
("riscv64gc-unknown-fuchsia", riscv64gc_unknown_fuchsia),
// FIXME(#106649): Remove x86_64-fuchsia in favor of x86_64-unknown-fuchsia
("x86_64-fuchsia", x86_64_fuchsia),
("x86_64-unknown-fuchsia", x86_64_unknown_fuchsia),

19
compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs Normal file
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@ -0,0 +1,19 @@
use crate::spec::{CodeModel, SanitizerSet, Target, TargetOptions};
pub fn target() -> Target {
Target {
llvm_target: "riscv64gc-unknown-fuchsia".into(),
pointer_width: 64,
data_layout: "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128".into(),
arch: "riscv64".into(),
options: TargetOptions {
code_model: Some(CodeModel::Medium),
cpu: "generic-rv64".into(),
features: "+m,+a,+f,+d,+c".into(),
llvm_abiname: "lp64d".into(),
max_atomic_width: Some(64),
supported_sanitizers: SanitizerSet::SHADOWCALLSTACK,
..super::fuchsia_base::opts()
},
}
}

1
src/doc/rustc/src/platform-support.md
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@ -295,6 +295,7 @@ target | std | host | notes
[`riscv32imac-unknown-xous-elf`](platform-support/riscv32imac-unknown-xous-elf.md) | ? | | RISC-V Xous (RV32IMAC ISA)
`riscv32imc-esp-espidf` | ✓ | | RISC-V ESP-IDF
`riscv64gc-unknown-freebsd` | | | RISC-V FreeBSD
`riscv64gc-unknown-fuchsia` | | | RISC-V Fuchsia
`riscv64gc-unknown-linux-musl` | | | RISC-V Linux (kernel 4.20, musl 1.2.0)
[`riscv64gc-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | OpenBSD/riscv64
`s390x-unknown-linux-musl` | | | S390x Linux (kernel 3.2, MUSL)