start GBA file.

src/librustc_target/spec/thumbv4t_nintendo_gba.rs

@@ -0,0 +1,30 @@
+//! Targets the Nintendo Game Boy Advance (GBA).
+//!
+//! The GBA is a handheld game device from 2001. Inside, the CPU is an ARM7TDMI.
+//! That's in the ARMv4T architecture family.
+//!
+//! Technically the device has no OS, however we're going to copy the
+//! `mipsel_sony_psp` target setup and set the OS string to be "GBA". Other than
+//! the setting of the `target_os` and `target_vendor` values, this target is a
+//! fairly standard configuration for `thumbv4t`
+
+use crate::spec::{LinkerFlavor, LldFlavor, Target, TargetOptions, TargetResult};
+
+pub fn target() -> TargetResult {
+    Ok(Target {
+        llvm_target: "thumbv4t-none-eabi".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "32".to_string(),
+        target_c_int_width: "32".to_string(),
+        target_os: "gba".to_string(),
+        target_env: String::new(),
+        target_vendor: "nintendo".to_string(),
+        arch: "arm".to_string(),
+        data_layout: "TODO".to_string(),
+        linker_flavor: LinkerFlavor::Ld,
+        options: TargetOptions {
+            // TODO
+            ..TargetOptions::default()
+        },
+    })
+}