1 files changed, 50 insertions, 0 deletions
diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..536762d
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,50 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.resolveTargetQuery(.{
+        .cpu_arch = .riscv64,
+        .abi = .none,
+        .os_tag = .freestanding,
+        .ofmt = .elf,
+    });
+    const optimize = b.standardOptimizeOption(.{});
+
+    const exe = b.addExecutable(.{
+        .name = "kernel",
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .target = target,
+            .optimize = optimize,
+            .code_model = .medany,
+        }),
+    });
+    exe.root_module.addAssemblyFile(b.path("src/asm/boot.S"));
+    exe.root_module.addAssemblyFile(b.path("src/asm/trap.S"));
+    exe.linker_script = b.path("src/ld/virt.ld");
+    b.installArtifact(exe);
+
+    const run_step = b.step("run", "Run the app");
+    const run_cmd = b.addSystemCommand(&.{
+        // zig fmt: off
+        "qemu-system-riscv64",
+        "-machine", "virt",
+        "-cpu", "rv64",
+        "-smp", "4",
+        "-m", "128M",
+        // "-drive", "if=none,format=raw,file=hdd.dsk,id=foo",
+        // "-device", "virtio-blk-device,scsi=off,drive=foo",
+        "-nographic",
+        "-serial", "mon:stdio",
+        "-bios", "none",
+        "-device", "virtio-rng-device",
+        "-device", "virtio-net-device",
+        "-device", "virtio-tablet-device",
+        "-device", "virtio-keyboard-device",
+        "-S", "-s", 
+        "-kernel"
+        // zig fmt: on
+    });
+    run_cmd.addArtifactArg(exe);
+    run_step.dependOn(&run_cmd.step);
+    run_cmd.step.dependOn(b.getInstallStep());
+}