367 lines
11 KiB
Rust
367 lines
11 KiB
Rust
use {
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derive_more::Display,
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error_stack::{bail, report, Context, Report, Result, ResultExt},
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fatfs::{FileSystem, FormatVolumeOptions, FsOptions, ReadWriteSeek},
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std::{fmt::Display, fs::File, io, path::Path, process::Command},
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};
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fn main() -> Result<(), Error> {
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let mut args = std::env::args();
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args.next();
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// let disk_meta = fs::metadata("target/disk.img").unwrap();
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// let config_meta = fs::metadata("system.toml").unwrap();
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// if disk_meta.modified().unwrap() < config_meta.modified().unwrap() {
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// // TODO: work on adding in system.toml support
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// // TODO: rebuild the disk
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// }
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match args.next().as_deref() {
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Some("build" | "b") => {
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let mut release = false;
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let mut target = Target::X86_64;
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for arg in args {
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if arg == "-r" || arg == "--release" {
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release = true;
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} else if arg == "rv64" || arg == "riscv64" || arg == "riscv64-virt" {
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target = Target::Riscv64Virt;
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} else if arg == "arm64" || arg == "aarch64" || arg == "aarch64-virt" {
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target = Target::Aarch64;
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} else {
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return Err(report!(Error::InvalidSubCom));
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}
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}
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assemble()?;
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build(release, target).change_context(Error::Build)
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}
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Some("run" | "r") => {
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let mut release = false;
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let mut target = Target::X86_64;
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for arg in args {
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if arg == "-r" || arg == "--release" {
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release = true;
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} else if arg == "rv64" || arg == "riscv64" || arg == "riscv64-virt" {
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target = Target::Riscv64Virt;
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} else if arg == "arm64" || arg == "aarch64" || arg == "aarch64-virt" {
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target = Target::Aarch64;
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} else {
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return Err(report!(Error::InvalidSubCom));
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}
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}
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assemble()?;
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build(release, target)?;
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run(release, target)
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}
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Some("help" | "h") => {
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println!(concat!(
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"AbleOS RepBuild\n",
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"Subcommands:\n",
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" build (b): Build a bootable disk image\n",
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" help (h): Print this message\n",
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" run (r): Build and run AbleOS in QEMU\n\n",
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"Options for build and run:\n",
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" -r: build in release mode",
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" [target]: sets target"
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),);
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Ok(())
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}
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_ => Err(report!(Error::InvalidSubCom)),
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}
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}
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fn assemble() -> Result<(), Error> {
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match std::fs::create_dir("target/test-programs") {
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Ok(_) => (),
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Err(e) if e.kind() == std::io::ErrorKind::AlreadyExists => (),
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Err(e) => return Err(Report::new(e).change_context(Error::Io)),
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}
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for entry in std::fs::read_dir("sysdata/test-programs")
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.map_err(Report::from)
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.change_context(Error::Io)?
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{
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let entry = entry.map_err(Report::from).change_context(Error::Io)?;
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if !entry
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.file_type()
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.map_err(Report::from)
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.change_context(Error::Io)?
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.is_file()
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{
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continue;
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}
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let name = entry.file_name();
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let name = name.to_string_lossy();
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let name = name.trim_end_matches(".rhai");
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let mut out = File::options()
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.write(true)
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.create(true)
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.open(Path::new("target/test-programs").join(format!("{name}.hbf")))
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.map_err(Report::from)
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.change_context(Error::Io)?;
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out.set_len(0)
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.map_err(Report::from)
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.change_context(Error::Io)?;
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hbasm::assembler(&mut out, |engine| engine.run_file(entry.path()))
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.map_err(|e| report!(Error::Assembler).attach_printable(e.to_string()))?;
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}
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Ok(())
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}
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fn get_fs() -> Result<FileSystem<impl ReadWriteSeek>, io::Error> {
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let mut img = File::options()
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.read(true)
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.write(true)
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.create(true)
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.open(Path::new("target/disk.img"))?;
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img.set_len(1024 * 1024 * 64)?;
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fatfs::format_volume(&mut img, FormatVolumeOptions::new())?;
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let fs = FileSystem::new(img, FsOptions::new())?;
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let bootdir = fs.root_dir().create_dir("efi")?.create_dir("boot")?;
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io::copy(
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&mut File::open("limine/BOOTX64.EFI")
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.map_err(Report::from)
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.attach_printable("Copying Limine (x86_64): have you pulled the submodule?")?,
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&mut bootdir.create_file("bootx64.efi")?,
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)?;
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io::copy(
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&mut File::open("limine/BOOTAA64.EFI")
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.map_err(Report::from)
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.attach_printable("Copying Limine (ARM): have you pulled the submodule?")?,
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&mut bootdir.create_file("bootaa64.efi")?,
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)?;
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for fpath in [
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"sysdata/limine.cfg",
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"sysdata/background.bmp",
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"target/test-programs/failure.hbf",
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"target/test-programs/ecall.hbf",
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"target/test-programs/main.hbf",
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"target/test-programs/serial_driver.hbf",
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"target/test-programs/vfs_test.hbf",
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"target/test-programs/limine_framebuffer_driver.hbf",
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] {
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let path = Path::new(fpath);
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io::copy(
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&mut File::open(path)?,
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&mut fs
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.root_dir()
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.create_file(&path.file_name().unwrap().to_string_lossy())?,
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)?;
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}
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drop(bootdir);
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Ok(fs)
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}
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fn build(release: bool, target: Target) -> Result<(), Error> {
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let fs = get_fs().change_context(Error::Io)?;
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let mut com = Command::new("cargo");
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com.current_dir("kernel");
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com.args(["b"]);
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if release {
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com.arg("-r");
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}
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if target == Target::Riscv64Virt {
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com.args(["--target", "targets/riscv64-virt-ableos.json"]);
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}
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if target == Target::Aarch64 {
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com.args(["--target", "targets/aarch64-virt-ableos.json"]);
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}
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match com.status() {
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Ok(s) if s.code() != Some(0) => bail!(Error::Build),
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Err(e) => bail!(report!(e).change_context(Error::Build)),
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_ => (),
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}
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let mut path: String = "kernel".to_string();
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let kernel_dir = match target {
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Target::X86_64 => {
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path.push_str("_x86-64");
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"target/x86_64-ableos"
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}
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Target::Riscv64Virt => "target/riscv64-virt-ableos",
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Target::Aarch64 => {
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path.push_str("_aarch64");
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"target/aarch64-virt-ableos"
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}
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};
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(|| -> std::io::Result<_> {
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io::copy(
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&mut File::open(
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Path::new(kernel_dir)
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.join(if release { "release" } else { "debug" })
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.join("kernel"),
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)?,
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&mut fs.root_dir().create_file(&path)?,
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)
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.map(|_| ())
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})()
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.map_err(Report::from)
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.change_context(Error::Io)
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}
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fn run(release: bool, target: Target) -> Result<(), Error> {
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let mut com = match target {
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Target::X86_64 => Command::new("qemu-system-x86_64"),
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Target::Riscv64Virt => Command::new("qemu-system-riscv64"),
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Target::Aarch64 => Command::new("qemu-system-aarch64"),
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};
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let ovmf_path = fetch_ovmf(target);
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match target {
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Target::X86_64 => {
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#[rustfmt::skip]
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com.args([
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"-bios", &ovmf_path.change_context(Error::OvmfFetch)?,
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"-drive", "file=target/disk.img,format=raw",
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"-m", "4G",
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"-smp", "cores=4",
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// "-enable-kvm",
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"-cpu", "Broadwell-v4"
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]);
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}
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Target::Riscv64Virt => {
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#[rustfmt::skip]
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com.args([
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"-M", "virt",
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"-m", "128M",
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"-serial", "stdio",
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"-kernel",
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if release {
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"target/riscv64-virt-ableos/release/kernel"
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} else {
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"target/riscv64-virt-ableos/debug/kernel"
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}
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]);
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}
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Target::Aarch64 => {
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#[rustfmt::skip]
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com.args([
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"-M", "virt",
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"-cpu", "cortex-a72",
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"-device", "ramfb",
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"-device", "qemu-xhci",
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"-device", "usb-kbd",
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"-m", "2G",
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"-bios", &ovmf_path.change_context(Error::OvmfFetch)?,
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"-drive", "file=target/disk.img,format=raw",
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]);
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}
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}
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match com
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.status()
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.map_err(Report::from)
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.change_context(Error::ProcessSpawn)?
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{
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s if s.success() => Ok(()),
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s => Err(report!(Error::Qemu(s.code()))),
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}
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}
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fn fetch_ovmf(target: Target) -> Result<String, OvmfFetchError> {
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let (ovmf_url, ovmf_path) = match target {
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Target::X86_64 => (
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"https://retrage.github.io/edk2-nightly/bin/RELEASEX64_OVMF.fd",
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"target/RELEASEX64_OVMF.fd",
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),
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Target::Riscv64Virt => return Err(OvmfFetchError::Empty.into()),
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Target::Aarch64 => (
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"https://retrage.github.io/edk2-nightly/bin/RELEASEAARCH64_QEMU_EFI.fd",
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"target/RELEASEAARCH64_QEMU_EFI.fd",
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),
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};
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let mut file = match std::fs::metadata(ovmf_path) {
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Err(e) if e.kind() == std::io::ErrorKind::NotFound => std::fs::OpenOptions::new()
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.create(true)
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.write(true)
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.read(true)
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.open(ovmf_path)
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.map_err(Report::from)
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.change_context(OvmfFetchError::Io)?,
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Ok(_) => return Ok(ovmf_path.to_owned()),
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Err(e) => return Err(report!(e).change_context(OvmfFetchError::Io)),
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};
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let mut bytes = reqwest::blocking::get(ovmf_url)
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.map_err(Report::from)
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.change_context(OvmfFetchError::Fetch)?;
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bytes
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.copy_to(&mut file)
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.map_err(Report::from)
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.change_context(OvmfFetchError::Io)?;
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Ok(ovmf_path.to_owned())
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}
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#[derive(Debug, Display)]
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enum OvmfFetchError {
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#[display(fmt = "Failed to fetch OVMF package")]
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Fetch,
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#[display(fmt = "No OVMF package available")]
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Empty,
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#[display(fmt = "IO Error")]
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Io,
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}
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impl Context for OvmfFetchError {}
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#[derive(Clone, Copy, PartialEq, Eq)]
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enum Target {
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X86_64,
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Riscv64Virt,
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Aarch64,
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}
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#[derive(Debug, Display)]
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enum Error {
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#[display(fmt = "Failed to build the kernel")]
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Build,
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#[display(fmt = "Missing or invalid subcommand (available: build, run)")]
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InvalidSubCom,
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#[display(fmt = "IO Error")]
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Io,
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#[display(fmt = "Failed to spawn a process")]
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ProcessSpawn,
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#[display(fmt = "Failed to fetch UEFI firmware")]
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OvmfFetch,
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#[display(fmt = "Failed to assemble Holey Bytes code")]
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Assembler,
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#[display(fmt = "QEMU Error: {}", "fmt_qemu_err(*_0)")]
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Qemu(Option<i32>),
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}
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impl Context for Error {}
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fn fmt_qemu_err(e: Option<i32>) -> impl Display {
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struct W(Option<i32>);
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impl Display for W {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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if let Some(c) = self.0 {
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c.fmt(f)
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} else {
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f.write_str("Interrupted by signal")
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}
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}
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}
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W(e)
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}
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