feat: add core library

.gitignore

@@ -1,2 +1,5 @@
 /target
 .DS_Store
+
+.zig-cache
+zig-out

core-library/README.md

@@ -0,0 +1,14 @@
+# Core Library
+
+## Run tests
+
+```
+zig build test --summary all
+```
+
+
+## Build
+
+```
+zig build
+```

core-library/build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const optimize = b.standardOptimizeOption(.{});
+    const target = b.standardTargetOptions(.{ .default_target = .{ .ofmt = .c } });
+
+    // Core Library
+    //
+    const libcore = b.addStaticLibrary(.{
+        .name = "core",
+        .root_source_file = b.path("src/root.zig"),
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true,
+    });
+    libcore.addIncludePath(b.path("src/includes"));
+    libcore.addCSourceFile(.{
+        .file = b.path("src/includes/wrapper.c"),
+        .flags = &.{"-Wall"},
+    });
+    b.installArtifact(libcore);
+    b.installFile("src/includes/wrapper.c", "lib/wrapper.c");
+    b.installFile("src/includes/valgrind.h", "lib/valgrind.h");
+    b.installFile("src/includes/callgrind.h", "lib/callgrind.h");
+    b.installFile("src/includes/core.h", "lib/core.h");
+    // TODO: Copy zig.h
+
+    // Tests
+    //
+    const test_main = b.addTest(.{
+        .root_source_file = b.path("src/root.zig"),
+        .optimize = optimize,
+        .link_libc = true,
+        .test_runner = b.path("src/test_main.zig")
+    });
+    test_main.linkLibC();
+    test_main.addIncludePath(b.path("src/includes"));
+    test_main.addCSourceFile(.{
+        .file = b.path("src/includes/wrapper.c"),
+        .flags = &.{"-Wall"},
+    });
+    const run_test_main = b.addRunArtifact(test_main);
+    b.step("test", "test utility functions").dependOn(&run_test_main.step);
+}

core-library/build.zig.zon

@@ -0,0 +1,11 @@
+.{
+    .name = "core",
+    .fingerprint = 0x6b8d854f40550aa0,
+    .version = "0.0.1",
+    .dependencies = .{},
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+    },
+}