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91 lines
2.2 KiB
91 lines
2.2 KiB
extern crate cc;
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use std::fs::File;
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use std::path::Path;
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use std::io::{Result, Write};
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fn main() {
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println!("cargo:rerun-if-env-changed=LOG");
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let arch: String = std::env::var("ARCH").unwrap();
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match arch.as_str() {
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"x86_64" => {
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// cc::Build::new()
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// .file("src/arch/x86_64/driver/apic/lapic.c")
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// .file("src/arch/x86_64/driver/keyboard/keyboard.c")
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// .flag("-mcmodel=large")
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// .compile("cobj");
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gen_vector_asm().unwrap();
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}
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"riscv32" => {
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cc::Build::new()
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.file("src/arch/riscv32/compiler_rt.c")
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.flag("-march=rv32ia")
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.flag("-mabi=ilp32")
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.flag("-Wno-builtin-declaration-mismatch")
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.compile("atomic_rt");
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if let Ok(file_path) = gen_sfsimg_asm() {
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cc::Build::new()
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.file(&file_path)
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.flag("-march=rv32ia")
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.flag("-mabi=ilp32")
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.compile("sfsimg");
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}
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}
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"aarch64" => {
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if let Ok(file_path) = gen_sfsimg_asm() {
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cc::Build::new().file(&file_path).compile("sfsimg");
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}
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}
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_ => panic!("Unknown arch {}", arch),
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}
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}
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fn gen_vector_asm() -> Result<()> {
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let mut f = File::create("src/arch/x86_64/interrupt/vector.asm").unwrap();
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writeln!(f, "# generated by build.rs - do not edit")?;
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writeln!(f, ".section .text")?;
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writeln!(f, ".intel_syntax noprefix")?;
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for i in 0..256 {
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writeln!(f, "vector{}:", i)?;
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if !(i == 8 || (i >= 10 && i <= 14) || i == 17) {
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writeln!(f, "\tpush 0")?;
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}
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writeln!(f, "\tpush {}", i)?;
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writeln!(f, "\tjmp __alltraps")?;
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}
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writeln!(f, "\n.section .rodata")?;
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writeln!(f, ".global __vectors")?;
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writeln!(f, "__vectors:")?;
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for i in 0..256 {
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writeln!(f, "\t.quad vector{}", i)?;
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}
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Ok(())
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}
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fn gen_sfsimg_asm() -> Result<std::path::PathBuf> {
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let out_dir = std::env::var("OUT_DIR").unwrap();
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let sfsimg = std::env::var("SFSIMG").unwrap();
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let file_path = Path::new(&out_dir).join("sfsimg.S");
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let mut f = File::create(&file_path).unwrap();
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write!(f, "# generated by build.rs - do not edit")?;
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write!(f, r#"
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.section .rodata
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.align 12
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.global _user_img_start
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.global _user_img_end
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_user_img_start:
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.incbin "{}"
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_user_img_end:
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"#, sfsimg)?;
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println!("cargo:rerun-if-changed={}", sfsimg);
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println!("cargo:rerun-if-env-changed=SFSIMG");
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Ok(file_path)
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}
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