feat: added loader and appropriate build scripts

unix-loader/build.zig

@@ -1,26 +1,55 @@
 const std = @import("std");
 
 pub fn build(b: *std.Build) !void {
+    const beacon = b.option([]const u8, "beacon", "path to beacon to load") orelse std.debug.panic("Expected a path to a beacon to be provided with -Dbeacon", .{});
+    const beacon_path = std.Build.LazyPath{ .cwd_relative = beacon };
+
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
+    const tool = b.addExecutable(.{
+        .name = "beacon-compress",
+        .root_source_file = b.path("src/gzip.zig"),
+        .target = b.host,
+    });
+
+    const tool_step = b.addRunArtifact(tool);
+    tool_step.addFileArg(beacon_path);
+    const compressed_beacon = tool_step.addOutputFileArg("beacon.gz");
+
+    const libloader = b.addObject(.{
+        .name = "libloader",
+        .root_source_file = b.path("src/libloader.zig"),
+        .target = target,
+        .optimize = optimize,
+        .strip = true,
+        .pic = true,
+    });
+
+    libloader.root_module.addAnonymousImport("beacon", .{ .root_source_file = compressed_beacon });
+    libloader.linkLibC();
+
+    libloader.step.dependOn(&tool_step.step);
+
     const lib = b.addSharedLibrary(.{
         .name = "unix-loader",
         .root_source_file = b.path("src/loader.zig"),
         .target = target,
         .optimize = optimize,
+        .strip = true,
     });
 
     const exe = b.addExecutable(.{
-        .name = "unix-loader",
+        .name = "test-loader",
         .root_source_file = b.path("src/test_run.zig"),
         .target = target,
         .optimize = optimize,
+        .strip = true,
     });
 
-    lib.linkLibC();
-    b.installArtifact(lib);
+    lib.addObject(libloader);
+    exe.addObject(libloader);
 
-    exe.linkLibC();
+    b.installArtifact(lib);
     b.installArtifact(exe);
 }