Merge pull request #95 from rust-wii/ios

❇️ feat(IOS): Add IOS module.

examples/ios/Cargo.toml

@@ -0,0 +1,12 @@
+
+[package]
+name = "template"
+version = "0.1.0"
+edition = "2021"
+
+[profile]
+dev = { panic = "abort" }
+release = { panic = "abort", lto = true, codegen-units = 1, strip = "symbols", opt-level = "s" }
+
+[dependencies]
+ogc-rs = { path = "../../" } 

examples/ios/build.rs

@@ -0,0 +1,30 @@
+use std::process::Command;
+fn main() {
+	let dkp_path = std::env::var("DEVKITPRO").expect("Please set $DEVKITPRO");
+	println!("cargo:rustc-link-search=native={}/libogc/lib/wii", dkp_path);
+
+	//checks if the build folder exists. If it does, it deletes it.
+	let _ = std::fs::remove_dir_all("build");
+
+	let _ = std::fs::create_dir("build");
+
+
+	let libgcc_location = match Command::new("powerpc-eabi-gcc").arg("-print-libgcc-file-name").output() {
+		Ok(output) => output,
+		Err(_e) => panic!("Could not find powerpc-eabi-gcc or the libgcc on the host machine!"),
+	};
+	let output = libgcc_location.stdout;
+	let parsed_output =
+		String::from_utf8(output).expect("powerpc-eabi-gcc command output returned a non-utf8 string.").replace("\n", "");
+
+	let _ = match Command::new("powerpc-eabi-ar").arg("x").arg(parsed_output).arg("crtresxfpr.o").arg("crtresxgpr.o").output() {
+		Ok(output) => output,
+		Err(_e) => panic!("powerpc-eabi-ar command failed"),
+	};
+
+	std::fs::rename("crtresxgpr.o", "build/crtresxgpr.o").expect("Could not move crtresxgpr.o");
+	std::fs::rename("crtresxfpr.o", "build/crtresxfpr.o").expect("Could not move crtresxfpr.o");
+
+	println!("cargo::rustc-link-arg=build/crtresxgpr.o");
+	println!("cargo::rustc-link-arg=build/crtresxfpr.o");
+}

examples/ios/powerpc-unknown-eabi.json

@@ -0,0 +1,31 @@
+{
+    "arch": "powerpc",
+    "cpu": "750",
+    "data-layout": "E-m:e-p:32:32-Fn32-i64:64-n32",
+    "dynamic-linking": false,
+    "env": "newlib",
+    "executables": true,
+    "has-elf-tls": false,
+    "has-rpath": true,
+    "llvm-target": "powerpc-unknown-eabi",
+    "linker": "powerpc-eabi-gcc",
+    "linker-flavor": "gcc",
+    "linker-is-gnu": true,
+    "os": "rvl-ios",
+    "pre-link-args": {
+        "gcc": [
+            "-mrvl",
+            "-meabi",
+            "-mhard-float"
+        ]
+    },
+    "panic-strategy": "abort",
+    "relocation-model": "static",
+    "target-endian": "big",
+    "target-family": "unix",
+    "target-mcount": "_mcount",
+    "target-c-int-width": "32",
+    "target-pointer-width": "32",
+    "vendor": "nintendo"
+}
+

examples/ios/src/main.rs

@@ -0,0 +1,48 @@
+#![no_std]
+#![feature(start)]
+
+use alloc::vec;
+use ogc_rs::{
+    ios::{self, Mode, SeekMode},
+    print, println,
+};
+
+extern crate alloc;
+
+#[start]
+fn main(_argc: isize, _argv: *const *const u8) -> isize {
+    // Try to open SYSCONF
+    if let Ok(fd) = ios::open(c"/shared2/sys/SYSCONF", Mode::Read) {
+        // Try to grab size or default to 0;
+        const GET_FILE_STATS: i32 = 11;
+        let mut out_buf = [0u8; 8];
+        let (size, seek_pos) = if ios::ioctl(fd, GET_FILE_STATS, &[], &mut out_buf).is_ok() {
+            (
+                usize::try_from(u32::from_be_bytes(out_buf[0..4].try_into().unwrap())).unwrap(),
+                usize::try_from(u32::from_be_bytes(out_buf[4..8].try_into().unwrap())).unwrap(),
+            )
+        } else {
+            (0usize, 0usize)
+        };
+        println!("{:?}, {:?}", size, seek_pos);
+
+        if seek_pos != 0 {
+            // Try to seek to the start
+            let _ = ios::seek(fd, 0, SeekMode::Start);
+        }
+
+        let mut bytes = vec![0; size];
+        if let Ok(bytes_read) = ios::read(fd, &mut bytes) {
+            // SAFETY:  I read this much bytes
+            unsafe { bytes.set_len(bytes_read) };
+        };
+
+        println!("{:?}", bytes);
+
+        let _ = ios::close(fd);
+    }
+
+    loop {
+        core::hint::spin_loop();
+    }
+}

powerpc-unknown-eabi.json

@@ -15,7 +15,9 @@
     "pre-link-args": {
         "gcc": [
             "-mrvl",
+            "-mcpu=750",
             "-meabi",
+            "-msdata=eabi",
             "-mhard-float"
         ]
     },