const std = @import("std");

pub fn buildKernelBin(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) *std.Build.Step.Compile {
    const kernel = b.addExecutable(.{
        .name = "kernel.bin",
        .use_llvm = true,
        .use_lld = true,
        .root_module = b.createModule(.{
            .root_source_file = b.path("init/main.zig"),
            .target = target,
            .optimize = optimize,
            .code_model = .kernel,
        }),
    });
    switch (target.result.cpu.arch) {
        .x86_64 => {
            kernel.setLinkerScript(b.path("arch/x86/kernel_bin.ld"));
        },
        else => {
            @panic("target architecture unsupported");
        }
    }
    kernel.entry = .{
        .symbol_name = "kernel_start",
    };
    kernel.link_gc_sections = false;
    return kernel;
}

pub fn buildKernelBinInstall(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) *std.Build.Step.InstallArtifact {
    return b.addInstallArtifact(buildKernelBin(b, target, optimize), .{});
}