const builtin = @import("builtin"); const std = @import("std"); const Builder = std.build.Builder; const tests = @import("test/tests.zig"); const BufMap = std.BufMap; const warn = std.debug.warn; const mem = std.mem; const ArrayList = std.ArrayList; const Buffer = std.Buffer; const io = std.io; const fs = std.fs; const InstallDirectoryOptions = std.build.InstallDirectoryOptions; pub fn build(b: *Builder) !void { b.setPreferredReleaseMode(.ReleaseFast); const mode = b.standardReleaseOptions(); var docgen_exe = b.addExecutable("docgen", "doc/docgen.zig"); const rel_zig_exe = try fs.path.relative(b.allocator, b.build_root, b.zig_exe); const langref_out_path = fs.path.join( b.allocator, [_][]const u8{ b.cache_root, "langref.html" }, ) catch unreachable; var docgen_cmd = docgen_exe.run(); docgen_cmd.addArgs([_][]const u8{ rel_zig_exe, "doc" ++ fs.path.sep_str ++ "langref.html.in", langref_out_path, }); docgen_cmd.step.dependOn(&docgen_exe.step); const docs_step = b.step("docs", "Build documentation"); docs_step.dependOn(&docgen_cmd.step); const test_step = b.step("test", "Run all the tests"); // find the stage0 build artifacts because we're going to re-use config.h and zig_cpp library const build_info = try b.exec([_][]const u8{ b.zig_exe, "BUILD_INFO", }); var index: usize = 0; var ctx = Context{ .cmake_binary_dir = nextValue(&index, build_info), .cxx_compiler = nextValue(&index, build_info), .llvm_config_exe = nextValue(&index, build_info), .lld_include_dir = nextValue(&index, build_info), .lld_libraries = nextValue(&index, build_info), .dia_guids_lib = nextValue(&index, build_info), .llvm = undefined, }; ctx.llvm = try findLLVM(b, ctx.llvm_config_exe); var test_stage2 = b.addTest("src-self-hosted/test.zig"); test_stage2.setBuildMode(builtin.Mode.Debug); const fmt_build_zig = b.addFmt([_][]const u8{"build.zig"}); var exe = b.addExecutable("zig", "src-self-hosted/main.zig"); exe.setBuildMode(mode); try configureStage2(b, test_stage2, ctx); try configureStage2(b, exe, ctx); addLibUserlandStep(b, mode); const skip_release = b.option(bool, "skip-release", "Main test suite skips release builds") orelse false; const skip_release_small = b.option(bool, "skip-release-small", "Main test suite skips release-small builds") orelse skip_release; const skip_release_fast = b.option(bool, "skip-release-fast", "Main test suite skips release-fast builds") orelse skip_release; const skip_release_safe = b.option(bool, "skip-release-safe", "Main test suite skips release-safe builds") orelse skip_release; const skip_non_native = b.option(bool, "skip-non-native", "Main test suite skips non-native builds") orelse false; const skip_self_hosted = b.option(bool, "skip-self-hosted", "Main test suite skips building self hosted compiler") orelse false; if (!skip_self_hosted) { // TODO re-enable this after https://github.com/ziglang/zig/issues/2377 //test_step.dependOn(&exe.step); } const only_install_lib_files = b.option(bool, "lib-files-only", "Only install library files") orelse false; if (!only_install_lib_files) { b.default_step.dependOn(&exe.step); exe.install(); } b.installDirectory(InstallDirectoryOptions{ .source_dir = "lib", .install_dir = .Lib, .install_subdir = "zig", }); b.installDirectory(InstallDirectoryOptions{ .source_dir = "std", .install_dir = .Lib, .install_subdir = "zig" ++ fs.path.sep_str ++ "std", .exclude_extensions = [_][]const u8{ "test.zig", "README.md" }, }); const test_filter = b.option([]const u8, "test-filter", "Skip tests that do not match filter"); const test_stage2_step = b.step("test-stage2", "Run the stage2 compiler tests"); test_stage2_step.dependOn(&test_stage2.step); // TODO see https://github.com/ziglang/zig/issues/1364 if (false) { test_step.dependOn(test_stage2_step); } var chosen_modes: [4]builtin.Mode = undefined; var chosen_mode_index: usize = 0; chosen_modes[chosen_mode_index] = builtin.Mode.Debug; chosen_mode_index += 1; if (!skip_release_safe) { chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseSafe; chosen_mode_index += 1; } if (!skip_release_fast) { chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseFast; chosen_mode_index += 1; } if (!skip_release_small) { chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseSmall; chosen_mode_index += 1; } const modes = chosen_modes[0..chosen_mode_index]; const multi_and_single = [_]bool{ false, true }; const just_multi = [_]bool{false}; // run stage1 `zig fmt` on this build.zig file just to make sure it works test_step.dependOn(&fmt_build_zig.step); const fmt_step = b.step("test-fmt", "Run zig fmt against build.zig to make sure it works"); fmt_step.dependOn(&fmt_build_zig.step); test_step.dependOn(tests.addPkgTests(b, test_filter, "test/stage1/behavior.zig", "behavior", "Run the behavior tests", modes, multi_and_single, skip_non_native)); test_step.dependOn(tests.addPkgTests(b, test_filter, "std/std.zig", "std", "Run the standard library tests", modes, multi_and_single, skip_non_native)); test_step.dependOn(tests.addPkgTests(b, test_filter, "std/special/compiler_rt.zig", "compiler-rt", "Run the compiler_rt tests", modes, just_multi, skip_non_native)); test_step.dependOn(tests.addCompareOutputTests(b, test_filter, modes)); test_step.dependOn(tests.addStandaloneTests(b, test_filter, modes)); test_step.dependOn(tests.addStackTraceTests(b, test_filter, modes)); test_step.dependOn(tests.addCliTests(b, test_filter, modes)); test_step.dependOn(tests.addAssembleAndLinkTests(b, test_filter, modes)); test_step.dependOn(tests.addRuntimeSafetyTests(b, test_filter, modes)); test_step.dependOn(tests.addTranslateCTests(b, test_filter)); test_step.dependOn(tests.addGenHTests(b, test_filter)); test_step.dependOn(tests.addCompileErrorTests(b, test_filter, modes)); test_step.dependOn(docs_step); } fn dependOnLib(b: *Builder, lib_exe_obj: var, dep: LibraryDep) void { for (dep.libdirs.toSliceConst()) |lib_dir| { lib_exe_obj.addLibPath(lib_dir); } const lib_dir = fs.path.join( b.allocator, [_][]const u8{ dep.prefix, "lib" }, ) catch unreachable; for (dep.system_libs.toSliceConst()) |lib| { const static_bare_name = if (mem.eql(u8, lib, "curses")) ([]const u8)("libncurses.a") else b.fmt("lib{}.a", lib); const static_lib_name = fs.path.join( b.allocator, [_][]const u8{ lib_dir, static_bare_name }, ) catch unreachable; const have_static = fileExists(static_lib_name) catch unreachable; if (have_static) { lib_exe_obj.addObjectFile(static_lib_name); } else { lib_exe_obj.linkSystemLibrary(lib); } } for (dep.libs.toSliceConst()) |lib| { lib_exe_obj.addObjectFile(lib); } for (dep.includes.toSliceConst()) |include_path| { lib_exe_obj.addIncludeDir(include_path); } } fn fileExists(filename: []const u8) !bool { fs.File.access(filename) catch |err| switch (err) { error.FileNotFound => return false, else => return err, }; return true; } fn addCppLib(b: *Builder, lib_exe_obj: var, cmake_binary_dir: []const u8, lib_name: []const u8) void { lib_exe_obj.addObjectFile(fs.path.join(b.allocator, [_][]const u8{ cmake_binary_dir, "zig_cpp", b.fmt("{}{}{}", lib_exe_obj.target.libPrefix(), lib_name, lib_exe_obj.target.staticLibSuffix()), }) catch unreachable); } const LibraryDep = struct { prefix: []const u8, libdirs: ArrayList([]const u8), libs: ArrayList([]const u8), system_libs: ArrayList([]const u8), includes: ArrayList([]const u8), }; fn findLLVM(b: *Builder, llvm_config_exe: []const u8) !LibraryDep { const shared_mode = try b.exec([_][]const u8{ llvm_config_exe, "--shared-mode" }); const is_static = mem.startsWith(u8, shared_mode, "static"); const libs_output = if (is_static) try b.exec([_][]const u8{ llvm_config_exe, "--libfiles", "--system-libs", }) else try b.exec([_][]const u8{ llvm_config_exe, "--libs", }); const includes_output = try b.exec([_][]const u8{ llvm_config_exe, "--includedir" }); const libdir_output = try b.exec([_][]const u8{ llvm_config_exe, "--libdir" }); const prefix_output = try b.exec([_][]const u8{ llvm_config_exe, "--prefix" }); var result = LibraryDep{ .prefix = mem.tokenize(prefix_output, " \r\n").next().?, .libs = ArrayList([]const u8).init(b.allocator), .system_libs = ArrayList([]const u8).init(b.allocator), .includes = ArrayList([]const u8).init(b.allocator), .libdirs = ArrayList([]const u8).init(b.allocator), }; { var it = mem.tokenize(libs_output, " \r\n"); while (it.next()) |lib_arg| { if (mem.startsWith(u8, lib_arg, "-l")) { try result.system_libs.append(lib_arg[2..]); } else { if (fs.path.isAbsolute(lib_arg)) { try result.libs.append(lib_arg); } else { try result.system_libs.append(lib_arg); } } } } { var it = mem.tokenize(includes_output, " \r\n"); while (it.next()) |include_arg| { if (mem.startsWith(u8, include_arg, "-I")) { try result.includes.append(include_arg[2..]); } else { try result.includes.append(include_arg); } } } { var it = mem.tokenize(libdir_output, " \r\n"); while (it.next()) |libdir| { if (mem.startsWith(u8, libdir, "-L")) { try result.libdirs.append(libdir[2..]); } else { try result.libdirs.append(libdir); } } } return result; } fn nextValue(index: *usize, build_info: []const u8) []const u8 { const start = index.*; while (true) : (index.* += 1) { switch (build_info[index.*]) { '\n' => { const result = build_info[start..index.*]; index.* += 1; return result; }, '\r' => { const result = build_info[start..index.*]; index.* += 2; return result; }, else => continue, } } } fn configureStage2(b: *Builder, exe: var, ctx: Context) !void { exe.addIncludeDir("src"); exe.addIncludeDir(ctx.cmake_binary_dir); addCppLib(b, exe, ctx.cmake_binary_dir, "zig_cpp"); if (ctx.lld_include_dir.len != 0) { exe.addIncludeDir(ctx.lld_include_dir); var it = mem.tokenize(ctx.lld_libraries, ";"); while (it.next()) |lib| { exe.addObjectFile(lib); } } else { addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_wasm"); addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_elf"); addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_coff"); addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_lib"); } dependOnLib(b, exe, ctx.llvm); if (exe.target.getOs() == .linux) { try addCxxKnownPath(b, ctx, exe, "libstdc++.a", \\Unable to determine path to libstdc++.a \\On Fedora, install libstdc++-static and try again. ); exe.linkSystemLibrary("pthread"); } else if (exe.target.isFreeBSD()) { try addCxxKnownPath(b, ctx, exe, "libc++.a", null); exe.linkSystemLibrary("pthread"); } else if (exe.target.isDarwin()) { if (addCxxKnownPath(b, ctx, exe, "libgcc_eh.a", "")) { // Compiler is GCC. try addCxxKnownPath(b, ctx, exe, "libstdc++.a", null); exe.linkSystemLibrary("pthread"); // TODO LLD cannot perform this link. // See https://github.com/ziglang/zig/issues/1535 exe.enableSystemLinkerHack(); } else |err| switch (err) { error.RequiredLibraryNotFound => { // System compiler, not gcc. exe.linkSystemLibrary("c++"); }, else => return err, } } if (ctx.dia_guids_lib.len != 0) { exe.addObjectFile(ctx.dia_guids_lib); } exe.linkSystemLibrary("c"); } fn addCxxKnownPath( b: *Builder, ctx: Context, exe: var, objname: []const u8, errtxt: ?[]const u8, ) !void { const path_padded = try b.exec([_][]const u8{ ctx.cxx_compiler, b.fmt("-print-file-name={}", objname), }); const path_unpadded = mem.tokenize(path_padded, "\r\n").next().?; if (mem.eql(u8, path_unpadded, objname)) { if (errtxt) |msg| { warn("{}", msg); } else { warn("Unable to determine path to {}\n", objname); } return error.RequiredLibraryNotFound; } exe.addObjectFile(path_unpadded); } const Context = struct { cmake_binary_dir: []const u8, cxx_compiler: []const u8, llvm_config_exe: []const u8, lld_include_dir: []const u8, lld_libraries: []const u8, dia_guids_lib: []const u8, llvm: LibraryDep, }; fn addLibUserlandStep(b: *Builder, mode: builtin.Mode) void { const artifact = b.addStaticLibrary("userland", "src-self-hosted/stage1.zig"); artifact.disable_gen_h = true; artifact.bundle_compiler_rt = true; artifact.setTarget(builtin.arch, builtin.os, builtin.abi); artifact.setBuildMode(mode); if (mode != .Debug) { artifact.strip = true; } artifact.linkSystemLibrary("c"); if (builtin.os == .windows) { artifact.linkSystemLibrary("ntdll"); } const libuserland_step = b.step("libuserland", "Build the userland compiler library for use in stage1"); libuserland_step.dependOn(&artifact.step); const output_dir = b.option( []const u8, "output-dir", "For libuserland step, where to put the output", ) orelse return; artifact.setOutputDir(output_dir); }