Auto merge of #88529 - Meziu:master, r=nagisa

ARMv6K Nintendo 3DS Tier 3 target added

Addition of the target specifications to build .elf files for Nintendo 3DS (ARMv6K, Horizon). Requires devkitARM 3DS toolkit for system libraries and arm-none-eabi-gcc linker.

compiler/rustc_target/src/spec/armv6k_nintendo_3ds.rs

@@ -0,0 +1,43 @@
+use crate::spec::{LinkArgs, LinkerFlavor, PanicStrategy, RelocModel, Target, TargetOptions};
+
+/// A base target for Nintendo 3DS devices using the devkitARM toolchain.
+///
+/// Requires the devkitARM toolchain for 3DS targets on the host system.
+
+pub fn target() -> Target {
+ let mut pre_link_args = LinkArgs::new();
+ pre_link_args.insert(
+ LinkerFlavor::Gcc,
+ vec![
+ "-specs=3dsx.specs".to_string(),
+ "-mtune=mpcore".to_string(),
+ "-mfloat-abi=hard".to_string(),
+ "-mtp=soft".to_string(),
+ ],
+ );
+
+ Target {
+ llvm_target: "armv6k-none-eabihf".to_string(),
+ pointer_width: 32,
+ data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
+ arch: "arm".to_string(),
+
+ options: TargetOptions {
+ os: "horizon".to_string(),
+ env: "newlib".to_string(),
+ vendor: "nintendo".to_string(),
+ abi: "eabihf".to_string(),
+ linker_flavor: LinkerFlavor::Gcc,
+ cpu: "mpcore".to_string(),
+ executables: true,
+ families: vec!["unix".to_string()],
+ linker: Some("arm-none-eabi-gcc".to_string()),
+ relocation_model: RelocModel::Static,
+ features: "+vfp2".to_string(),
+ pre_link_args,
+ exe_suffix: ".elf".to_string(),
+ panic_strategy: PanicStrategy::Abort,
+ ..Default::default()
+ },
+ }
+}

compiler/rustc_target/src/spec/mod.rs

@@ -941,6 +941,8 @@ supported_targets! {
 
  ("bpfeb-unknown-none", bpfeb_unknown_none),
  ("bpfel-unknown-none", bpfel_unknown_none),
+
+ ("armv6k-nintendo-3ds", armv6k_nintendo_3ds),
 }
 
 /// Warnings encountered when parsing the target `json`.

src/doc/rustc/src/platform-support.md

@@ -217,6 +217,7 @@ target | std | host | notes
 `armv5te-unknown-linux-uclibceabi` | ? | | ARMv5TE Linux with uClibc
 `armv6-unknown-freebsd` | ✓ | ✓ | ARMv6 FreeBSD
 `armv6-unknown-netbsd-eabihf` | ? | |
+`armv6k-nintendo-3ds` | * | | ARMv6K Nintendo 3DS, Horizon (Requires devkitARM toolchain)
 `armv7-apple-ios` | ✓ | | ARMv7 iOS, Cortex-a8
 `armv7-unknown-freebsd` | ✓ | ✓ | ARMv7 FreeBSD
 `armv7-unknown-netbsd-eabihf` | ✓ | ✓ |