mirror of
https://github.com/xomboverlord/xomb.git
synced 2026-01-10 01:36:37 +01:00
c6fa2895e2
Core kernel infrastructure: - Multiboot2 boot with GRUB, long mode setup, higher-half kernel - Serial port output for debugging - Unified boot info abstraction for future UEFI support Memory management: - Physical frame allocator with bitmap tracking - Page table manipulation via recursive mapping (PML4[510]) - Support for 4KB, 2MB, and 1GB page mappings - TLB invalidation and proper NXE support Build system: - Cargo-based build with custom x86_64 target - Makefile for QEMU and Bochs testing - GRUB ISO generation for multiboot2 boot
57 lines
1.9 KiB
Rust
57 lines
1.9 KiB
Rust
//! Build script for XOmB
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//!
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//! Assembles the multiboot2 boot stub when building for bare metal target.
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use std::env;
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use std::path::PathBuf;
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use std::process::Command;
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fn main() {
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let target = env::var("TARGET").unwrap_or_default();
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let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
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// Only build assembly for multiboot2 target
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if (target.contains("none") || target.contains("xomb")) && env::var("CARGO_FEATURE_MULTIBOOT2").is_ok() {
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println!("cargo:rerun-if-changed=src/boot/multiboot2_header.asm");
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println!("cargo:rerun-if-changed=linker-multiboot2.ld");
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// Assemble with NASM (handles 32/64-bit mixing correctly)
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let obj_path = out_dir.join("multiboot2_header.o");
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let status = Command::new("nasm")
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.args([
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"-f", "elf64",
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"-o", obj_path.to_str().unwrap(),
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"src/boot/multiboot2_header.asm",
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])
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.status()
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.expect("Failed to run NASM. Install nasm package.");
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if !status.success() {
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panic!("Failed to assemble multiboot2_header.asm");
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}
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// Create static library
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let lib_path = out_dir.join("libboot_asm.a");
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let status = Command::new("ar")
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.args([
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"crus",
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lib_path.to_str().unwrap(),
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obj_path.to_str().unwrap(),
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])
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.status()
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.expect("Failed to run ar");
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if !status.success() {
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panic!("Failed to create libboot_asm.a");
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}
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// Link the assembly library
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println!("cargo:rustc-link-search=native={}", out_dir.display());
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println!("cargo:rustc-link-lib=static=boot_asm");
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// Use custom linker script
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println!("cargo:rustc-link-arg=-Tlinker-multiboot2.ld");
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println!("cargo:rustc-link-arg=--gc-sections");
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}
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}
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