use cc::Build;
//use std::{env, error::Error, fs::File, io::Write, path::PathBuf};
use std::{env, error::Error}; // , path::PathBuf};

fn main() -> Result<(), Box<dyn Error>> {
    let target = env::var("TARGET").unwrap();

    if target.contains("armv7r") {
        // ソースファイル
        let src_files = vec![
            [
                "src/asm/arm/kernel_context_create.S",
                "kernel_context_create",
            ],
            [
                "src/asm/arm/kernel_context_switch.S",
                "kernel_context_switch",
            ],
            ["src/asm/arm/kernel_exception_irq.S", "kernel_exception_irq"],
        ];

        for name in src_files.into_iter() {
            Build::new()
                .flag("-mfpu=vfpv3-d16")
                .flag("-mthumb-interwork")
                .flag("-mfloat-abi=softfp")
                .flag("-D_KERNEL_ARM_WITH_VFP")
                .flag("-Wno-unused-parameter")
                .flag("-Wno-missing-field-initializers")
                .file(name[0])
                .compile(name[1]);
        }
    }

    if target.contains("aarch64") {
        // ソースファイル
        let src_files = vec![
            [
                "src/asm/aarch64/kernel_context_create.S",
                "kernel_context_create",
            ],
            [
                "src/asm/aarch64/kernel_context_switch.S",
                "kernel_context_switch",
            ],
        ];

        for name in src_files.into_iter() {
            Build::new().file(name[0]).compile(name[1]);
        }
    }

    if target.contains("x86_64") {
        // ソースファイル
        let src_files = vec![
            [
                "src/asm/x86_64/kernel_context_create.S",
                "kernel_context_create",
            ],
            [
                "src/asm/x86_64/kernel_context_switch.S",
                "kernel_context_switch",
            ],
        ];

        for name in src_files.into_iter() {
            Build::new().flag("-fPIE").file(name[0]).compile(name[1]);
        }
    }

    Ok(())
}