reorganise

This commit is contained in:
andromeda
2026-03-06 16:53:18 +01:00
parent fdf5bb9daf
commit d35463e195
17 changed files with 89 additions and 95 deletions

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@@ -2,53 +2,15 @@ Call me Terry Davis because... actually please don't. I have visions: aspiration
# bootle # bootle
hobby kernel written in rust. It's just for playing around... for now :p hobby kernel
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootle` status: basically nothing, come back later
# bootler # bootler
hobby bootloader written in asm. It's just for playing around... for now :p hobby 1-stage legacy mode bootloader
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootler` status: gets to long mode, loads+jumps to kernel, starts idt and gdt... :)
### memory map
```
+------ 0x00100000 ------+
| hardware, bios stuff |
+------ 0x00080000 ------+
| |
| |
+------ 0x00010200 ------+
| x86_64 kernel |
+------ 0x00010000 ------+
| |
| |
+------ 0x00009000 ------+
| IDT |
+------ 0x00008000 ------+
| |
| |
+------ 0x00007E00 ------+
| bootloader (boot.asm) |
+------ 0x00007C00 ------+
| stack | TODO get real stack
+------ 0x00005000 ------+
| PT |
+------ 0x00004000 ------+
| PDT |
+------ 0x00003000 ------+
| PDPT |
+------ 0x00002000 ------+
| PML4T |
+------ 0x00001000 ------+
| |
| |
+------ 0x00000500 ------+
| bios stuff |
+------ 0x00000000 ------+
```
--- ---

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28
bootle/README.md Normal file
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@@ -0,0 +1,28 @@
# bootle
hobby kernel written in rust. It's just for playing around... for now :p
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootle`
### memory map
```
+------ 0x00100000 ------+
| hardware, bios stuff |
+------ 0x00080000 ------+
| |
| |
+------ 0x00010200 ------+
| kernel |
+------ 0x00010000 ------+
| bootloader stuff |
| includes stack, gdt, |
| idt for the time being |
+------ 0x00000500 ------+
| bios stuff |
+------ 0x00000000 ------+
```
---
this project follows [Common Changelog](https://common-changelog.org) guidelines

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@@ -6,14 +6,14 @@
qemu, qemu,
... ...
}: let }: let
rust-toolchain = rust-bin.fromRustupToolchainFile ../../rust-toolchain.toml; rust-toolchain = rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
naersk' = callPackage naersk { naersk' = callPackage naersk {
cargo = rust-toolchain; cargo = rust-toolchain;
rustc = rust-toolchain; rustc = rust-toolchain;
clippy = rust-toolchain; clippy = rust-toolchain;
}; };
in (naersk'.buildPackage { in (naersk'.buildPackage {
src = ../../.; src = ./.;
# deps for rust-src # deps for rust-src
additionalCargoLock = "${rust-toolchain.availableComponents.rust-src}/lib/rustlib/src/rust/library/Cargo.lock"; additionalCargoLock = "${rust-toolchain.availableComponents.rust-src}/lib/rustlib/src/rust/library/Cargo.lock";

7
bootler/CHANGELOG.md Normal file
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@@ -0,0 +1,7 @@
# Changelog
## [0.1.0] - 2026-03-06
### Added
- initialised CHANGELOG.md

43
bootler/README.md Normal file
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@@ -0,0 +1,43 @@
# bootler
hobby bootloader, 1-stage, legacy mode :p
run with `nix run git+https://git.mtgmonkey.net/andromeda/bootler#bootler`
### memory map
```
. .
: :
| longmode kernel |
+------ 0x00010000 ------+
| |
| |
+------ 0x00009000 ------+
| IDT |
+------ 0x00008000 ------+
| |
| |
+------ 0x00007E00 ------+
| bootloader (boot.asm) |
+------ 0x00007C00 ------+
| stack |
+------ 0x00005000 ------+
| PT |
+------ 0x00004000 ------+
| PDT |
+------ 0x00003000 ------+
| PDPT |
+------ 0x00002000 ------+
| PML4T |
+------ 0x00001000 ------+
| |
| |
+------ 0x00000500 ------+
| bios stuff |
+------ 0x00000000 ------+
```
---
this project follows [Common Changelog](https://common-changelog.org) guidelines

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@@ -9,7 +9,7 @@ in
stdenv.mkDerivation { stdenv.mkDerivation {
pname = "bootler"; pname = "bootler";
version = "0.1.0"; version = "0.1.0";
src = ../../.; src = ./.;
buildPhase = '' buildPhase = ''
${nasm}/bin/nasm asm/boot.asm -o boot.bin ${nasm}/bin/nasm asm/boot.asm -o boot.bin
${nasm}/bin/nasm asm/kernel.asm -o dummy.bin ${nasm}/bin/nasm asm/kernel.asm -o dummy.bin

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@@ -18,14 +18,15 @@
... ...
}: let }: let
system = "x86_64-linux"; system = "x86_64-linux";
pkgs = import nixpkgs { pkgs = nixpkgs.legacyPackages.${system};
pkgsWithRustOverlay = import nixpkgs {
inherit system; inherit system;
overlays = [(import rust-overlay)]; overlays = [(import rust-overlay)];
}; };
in { in {
packages.${system} = { packages.${system} = {
bootler = pkgs.callPackage ./nix/pkgs/bootler.nix {}; bootler = pkgs.callPackage ./bootler/package.nix {};
bootle = pkgs.callPackage ./nix/pkgs/bootle.nix { bootle = pkgsWithRustOverlay.callPackage ./bootle/package.nix {
naersk = naersk; naersk = naersk;
bootler = self.packages.${system}.bootler; bootler = self.packages.${system}.bootler;
}; };

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@@ -1,47 +0,0 @@
{
stdenv,
nasm,
qemu,
...
}: let
bootImg = "boot";
in
stdenv.mkDerivation {
pname = "bootler";
version = "0.1.0";
src = ../.;
buildPhase = ''
${nasm}/bin/nasm asm/boot.asm -o boot.bin
${nasm}/bin/nasm asm/kernel.asm -o kernel.bin
dd if=/dev/zero of=${bootImg} bs=512 count=2
dd if=boot.bin of=${bootImg} conv=notrunc
dd if=kernel.bin of=${bootImg} bs=512 seek=1 conv=notrunc
'';
installPhase = ''
mkdir -p $out/bin
cp ${bootImg} $out/bin
# create emulation binary
cat<<EOF>$out/bin/bootler
#!/usr/bin/env bash
# create temp dir
mkdir -p ./.bootler
cp $(echo $out)/bin/${bootImg} ./.bootler/${bootImg}
chmod a+w ./.bootler/${bootImg}
# run image
${qemu}/bin/qemu-system-x86_64 \
-nographic \
-drive file=./.bootler/${bootImg},format=raw,index=0,media=disk
# clean up
rm ./.bootler -r
EOF
chmod +x $out/bin/${bootImg}
chmod +x $out/bin/bootler
'';
}