UEFI hello world in Rust.
commit
6c806fc9ae
GPG Key ID:
4B7F3DA9351E577C
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@ -0,0 +1,2 @@
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/target
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/drive
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@ -0,0 +1,108 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "bit_field"
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version = "0.10.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a165d606cf084741d4ac3a28fb6e9b1eb0bd31f6cd999098cfddb0b2ab381dc0"
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name = "bitflags"
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[[package]]
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name = "bootproof"
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version = "0.1.0"
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dependencies = [
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"compiler_builtins",
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"uefi",
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]
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[[package]]
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name = "cfg-if"
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name = "compiler_builtins"
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version = "0.1.32"
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source = "git+https://github.com/rust-lang/compiler-builtins#f3846bc05da87b8a71cd1a5a6ff9d980f46b2d0f"
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[[package]]
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name = "log"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "proc-macro2"
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dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "quote"
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version = "1.0.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "syn"
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version = "1.0.34"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "936cae2873c940d92e697597c5eee105fb570cd5689c695806f672883653349b"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-xid",
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]
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[[package]]
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name = "ucs2"
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dependencies = [
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"bit_field",
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]
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[[package]]
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name = "uefi"
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version = "0.4.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ab1f1403ecbad37d25120161acc3db12066febf3446efcc40b7631d30678505d"
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dependencies = [
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"bitflags",
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"log",
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"ucs2",
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"uefi-macros",
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]
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[[package]]
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name = "uefi-macros"
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version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7a69fa8dd920e84d783769c44560484ade81f6c765cde2e1cc46c754ddf95947"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "unicode-xid"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
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@ -0,0 +1,9 @@
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[package]
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name = "bootproof"
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version = "0.1.0"
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authors = ["James Martin <james@jtmar.me>"]
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edition = "2018"
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[dependencies]
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compiler_builtins = { git = "https://github.com/rust-lang/compiler-builtins" }
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uefi = "0.4.6"
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@ -0,0 +1,21 @@
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# bootproof
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Messing around with UEFI apps.
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I don't have a specific goal here.
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My general direction is to work towards a bootable programming language environment,
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preferably one where security and allocation etc. are handled through the programming language
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rather than through a traditional operating system.
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I don't seriously expect to ever accomplish that, so for now I'm probably just going to...
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make a forth or something.
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## Running
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bootproof runs on x86_64 UEFI. You may either boot the program directly on your own computer or use an emulator.
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Make sure you have the `cargo-xbuild` crate installed and nightly Rust so you can compile to the UEFI target.
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First, build with:
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```
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cargo +nightly xbuild --target x86_64-unknown-uefi
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```
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And to run, simply `./run.sh`.
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@ -0,0 +1,4 @@
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#!/bin/bash
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mkdir -p drive/EFI/Boot
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cp target/x86_64-unknown-uefi/debug/bootproof.efi drive/EFI/Boot/BootX64.efi
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qemu-system-x86_64 -nodefaults -machine "q35,accel=kvm:tcg" -smp 8 -m 128M -drive "if=pflash,format=raw,file=/usr/share/OVMF/OVMF_CODE.fd,readonly=on" -drive "if=pflash,format=raw,file=/usr/share/OVMF/OVMF_VARS.fd,readonly=on" -drive "format=raw,file=fat:rw:drive" -serial stdio -display none
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@ -0,0 +1,36 @@
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#![no_std]
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#![no_main]
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#![feature(abi_efiapi)]
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use core::fmt::Write;
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use core::panic::PanicInfo;
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use core::writeln;
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use uefi::prelude::*;
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// Required for use by the panic handler.
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// This should not be used anywhere else.
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static mut global_st: Option<*mut SystemTable<Boot>> = None;
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#[panic_handler]
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fn panic(info: &PanicInfo) -> ! {
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let st = unsafe { &global_st.unwrap().read() };
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writeln!(st.stderr(), "stderr: {}", info);
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writeln!(st.stdout(), "stdout: {}", info);
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loop {}
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}
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#[entry]
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fn efi_main(handle: Handle, st: SystemTable<Boot>) -> Status {
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let mut g_st = unsafe { st.unsafe_clone() };
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unsafe {
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global_st = Some(&mut g_st);
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}
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st.stdout().reset(false).expect_success("Failed to reset UEFI stdout.");
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writeln!(st.stdout(), "Hello, world!");
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loop {}
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Status::SUCCESS
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}
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