Initial commit
This commit is contained in:
commit
b6b4854f71
15 changed files with 349 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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img
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target
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22
LICENSE
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22
LICENSE
Normal file
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@ -0,0 +1,22 @@
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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||||
In jurisdictions that recognize copyright laws, the author or authors
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of this software dedicate any and all copyright interest in the
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software to the public domain. We make this dedication for the benefit
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of the public at large and to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of
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relinquishment in perpetuity of all present and future rights to this
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software under copyright law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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16
build.sh
Executable file
16
build.sh
Executable file
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@ -0,0 +1,16 @@
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#!/bin/sh
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set -e
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rm -rf img
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mkdir -p img/boot/efi/boot
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cd kernel && cargo build --release && cd ..
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cd loader && cargo build --release && cd ..
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cp loader/target/x86_64-unknown-uefi/release/loader.efi img/boot/efi/boot/bootx64.efi
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cd img
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dd if=/dev/zero of=boot.img bs=1M count=16 status=none
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mformat -i boot.img
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mcopy -si boot.img boot/* ::
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dd if=/dev/zero of=os.img bs=1M count=32 status=none
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parted -s os.img mklabel gpt
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parted -s os.img mkpart primary fat32 2048s 100%
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parted -s os.img set 1 esp on
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dd if=boot.img of=os.img bs=1M seek=1 conv=notrunc status=none
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3
kernel/.cargo/config.toml
Normal file
3
kernel/.cargo/config.toml
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@ -0,0 +1,3 @@
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[build]
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target = "x86_64-unknown-none"
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rustflags = ["-C", "link-arg=link.ld"]
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7
kernel/Cargo.lock
generated
Normal file
7
kernel/Cargo.lock
generated
Normal file
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@ -0,0 +1,7 @@
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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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version = 3
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[[package]]
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name = "kernel"
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version = "0.0.1"
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6
kernel/Cargo.toml
Normal file
6
kernel/Cargo.toml
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@ -0,0 +1,6 @@
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[package]
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name = "kernel"
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version = "0.0.1"
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edition = "2021"
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[dependencies]
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15
kernel/link.ld
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15
kernel/link.ld
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@ -0,0 +1,15 @@
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SECTIONS {
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. = 0xffffffff80000000;
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.text ALIGN(0x1000) : {
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*(.text*)
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}
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.rodata ALIGN(0x1000) : {
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*(.rodata*)
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}
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.data ALIGN(0x1000) : {
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*(.data*)
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}
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.bss ALIGN(0x1000) : {
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*(.bss*)
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}
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}
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14
kernel/src/main.rs
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14
kernel/src/main.rs
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@ -0,0 +1,14 @@
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#![no_std]
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#![no_main]
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use core::panic::PanicInfo;
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#[no_mangle]
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fn _start() {
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loop {}
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}
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#[panic_handler]
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fn panic(_info: &PanicInfo) -> ! {
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loop {}
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}
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2
loader/.cargo/config.toml
Normal file
2
loader/.cargo/config.toml
Normal file
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[build]
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target = "x86_64-unknown-uefi"
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186
loader/Cargo.lock
generated
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186
loader/Cargo.lock
generated
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@ -0,0 +1,186 @@
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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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version = 3
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[[package]]
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name = "bit_field"
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version = "0.10.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
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[[package]]
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name = "bitflags"
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version = "2.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "elf"
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version = "0.7.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4445909572dbd556c457c849c4ca58623d84b27c8fff1e74b0b4227d8b90d17b"
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[[package]]
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name = "loader"
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version = "0.0.1"
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dependencies = [
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"elf",
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"log",
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"uefi",
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"x86_64",
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]
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[[package]]
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name = "log"
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version = "0.4.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
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||||
[[package]]
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name = "proc-macro2"
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version = "1.0.86"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "ptr_meta"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bcada80daa06c42ed5f48c9a043865edea5dc44cbf9ac009fda3b89526e28607"
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dependencies = [
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"ptr_meta_derive",
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]
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[[package]]
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||||
name = "ptr_meta_derive"
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||||
version = "0.2.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "bca9224df2e20e7c5548aeb5f110a0f3b77ef05f8585139b7148b59056168ed2"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn 1.0.109",
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]
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[[package]]
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name = "quote"
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version = "1.0.36"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
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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 = "rustversion"
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version = "1.0.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
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[[package]]
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name = "syn"
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version = "1.0.109"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
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||||
dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "syn"
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version = "2.0.68"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "901fa70d88b9d6c98022e23b4136f9f3e54e4662c3bc1bd1d84a42a9a0f0c1e9"
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||||
dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "ucs2"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "df79298e11f316400c57ec268f3c2c29ac3c4d4777687955cd3d4f3a35ce7eba"
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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 = "0.28.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a9c0a56dc9fed2589aad6ddca11c2584968fc21f227b5d7083bb8961d26a69fa"
|
||||
dependencies = [
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"bitflags",
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"cfg-if",
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"log",
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"ptr_meta",
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"ucs2",
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"uefi-macros",
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"uefi-raw",
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||||
"uguid",
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||||
]
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[[package]]
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name = "uefi-macros"
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version = "0.13.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "26a7b1c2c808c3db854a54d5215e3f7e7aaf5dcfbce095598cba6af29895695d"
|
||||
dependencies = [
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||||
"proc-macro2",
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||||
"quote",
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||||
"syn 2.0.68",
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||||
]
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||||
|
||||
[[package]]
|
||||
name = "uefi-raw"
|
||||
version = "0.5.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "efa8716f52e8cab8bcedfd5052388a0f263b69fe5cc2561548dc6a530678333c"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
"ptr_meta",
|
||||
"uguid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "uguid"
|
||||
version = "2.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ab14ea9660d240e7865ce9d54ecdbd1cd9fa5802ae6f4512f093c7907e921533"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "volatile"
|
||||
version = "0.4.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "442887c63f2c839b346c192d047a7c87e73d0689c9157b00b53dcc27dd5ea793"
|
||||
|
||||
[[package]]
|
||||
name = "x86_64"
|
||||
version = "0.15.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4bc79523af8abf92fb1a970c3e086c5a343f6bcc1a0eb890f575cbb3b45743df"
|
||||
dependencies = [
|
||||
"bit_field",
|
||||
"bitflags",
|
||||
"rustversion",
|
||||
"volatile",
|
||||
]
|
||||
10
loader/Cargo.toml
Normal file
10
loader/Cargo.toml
Normal file
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|
@ -0,0 +1,10 @@
|
|||
[package]
|
||||
name = "loader"
|
||||
version = "0.0.1"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
elf = {version = "0.7.4", default-features = false}
|
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log = "0.4.21"
|
||||
uefi = {version = "0.28.0", features = ["logger", "panic_handler"]}
|
||||
x86_64 = {version = "0.15.1", default-features = false}
|
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40
loader/src/elf.rs
Normal file
40
loader/src/elf.rs
Normal file
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@ -0,0 +1,40 @@
|
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use core::ptr;
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|
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use elf::{abi::PT_LOAD, endian::LittleEndian, ElfBytes};
|
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use uefi::table::{
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boot::{AllocateType, MemoryType},
|
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Boot, SystemTable,
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};
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||||
const KERNEL_VIRT_START: u64 = 0xffffffff80000000;
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|
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pub fn load_kernel(kernel: &[u8], system_table: &SystemTable<Boot>) {
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let file: ElfBytes<LittleEndian> = ElfBytes::minimal_parse(kernel).unwrap();
|
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let mut kernel_size = 0;
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for i in file.segments().unwrap() {
|
||||
if i.p_type != PT_LOAD {
|
||||
continue;
|
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}
|
||||
if i.p_vaddr < KERNEL_VIRT_START {
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||||
panic!("Invalid kernel segments")
|
||||
}
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||||
let end_addr = i.p_vaddr - KERNEL_VIRT_START + i.p_memsz;
|
||||
if end_addr > kernel_size {
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kernel_size = end_addr;
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||||
}
|
||||
}
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||||
let phys_start = system_table
|
||||
.boot_services()
|
||||
.allocate_pages(AllocateType::AnyPages, MemoryType::LOADER_DATA, ((kernel_size + 0xfff) / 0x1000).try_into().unwrap())
|
||||
.unwrap();
|
||||
for i in file.segments().unwrap() {
|
||||
if i.p_type != PT_LOAD {
|
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continue;
|
||||
}
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let start_addr = i.p_vaddr - KERNEL_VIRT_START + phys_start;
|
||||
unsafe {
|
||||
ptr::write_bytes(start_addr as *mut u8, 0, i.p_memsz.try_into().unwrap());
|
||||
ptr::copy(kernel[i.p_offset.try_into().unwrap()..].as_ptr(), start_addr as *mut u8, i.p_filesz.try_into().unwrap());
|
||||
}
|
||||
}
|
||||
}
|
||||
23
loader/src/main.rs
Normal file
23
loader/src/main.rs
Normal file
|
|
@ -0,0 +1,23 @@
|
|||
#![no_main]
|
||||
#![no_std]
|
||||
|
||||
use elf::load_kernel;
|
||||
use log::debug;
|
||||
use uefi::{
|
||||
entry,
|
||||
table::{boot::MemoryType, Boot, SystemTable},
|
||||
Handle, Status,
|
||||
};
|
||||
|
||||
mod elf;
|
||||
|
||||
const KERNEL: &[u8] = include_bytes!("../../kernel/target/x86_64-unknown-none/release/kernel");
|
||||
|
||||
#[entry]
|
||||
fn main(image_handle: Handle, mut system_table: SystemTable<Boot>) -> Status {
|
||||
uefi::helpers::init(&mut system_table).unwrap();
|
||||
debug!("Starting bootloader...");
|
||||
load_kernel(KERNEL, &system_table);
|
||||
let _memory_map = system_table.exit_boot_services(MemoryType::LOADER_DATA).1;
|
||||
loop {}
|
||||
}
|
||||
2
rust-toolchain.toml
Normal file
2
rust-toolchain.toml
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
[toolchain]
|
||||
targets = ["x86_64-unknown-none", "x86_64-unknown-uefi"]
|
||||
1
rustfmt.toml
Normal file
1
rustfmt.toml
Normal file
|
|
@ -0,0 +1 @@
|
|||
max_width = 200
|
||||
Loading…
Add table
Reference in a new issue