mirror of
https://github.com/ziglang/zig.git
synced 2024-11-16 09:03:12 +00:00
396 lines
14 KiB
Zig
396 lines
14 KiB
Zig
const builtin = @import("builtin");
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const std = @import("std");
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const Builder = std.build.Builder;
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const tests = @import("test/tests.zig");
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const BufMap = std.BufMap;
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const warn = std.debug.warn;
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const mem = std.mem;
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const ArrayList = std.ArrayList;
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const Buffer = std.Buffer;
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const io = std.io;
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const fs = std.fs;
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const InstallDirectoryOptions = std.build.InstallDirectoryOptions;
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pub fn build(b: *Builder) !void {
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b.setPreferredReleaseMode(.ReleaseFast);
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const mode = b.standardReleaseOptions();
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var docgen_exe = b.addExecutable("docgen", "doc/docgen.zig");
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const rel_zig_exe = try fs.path.relative(b.allocator, b.build_root, b.zig_exe);
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const langref_out_path = fs.path.join(
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b.allocator,
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[_][]const u8{ b.cache_root, "langref.html" },
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) catch unreachable;
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var docgen_cmd = docgen_exe.run();
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docgen_cmd.addArgs([_][]const u8{
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rel_zig_exe,
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"doc" ++ fs.path.sep_str ++ "langref.html.in",
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langref_out_path,
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});
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docgen_cmd.step.dependOn(&docgen_exe.step);
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const docs_step = b.step("docs", "Build documentation");
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docs_step.dependOn(&docgen_cmd.step);
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const test_step = b.step("test", "Run all the tests");
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// find the stage0 build artifacts because we're going to re-use config.h and zig_cpp library
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const build_info = try b.exec([_][]const u8{
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b.zig_exe,
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"BUILD_INFO",
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});
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var index: usize = 0;
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var ctx = Context{
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.cmake_binary_dir = nextValue(&index, build_info),
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.cxx_compiler = nextValue(&index, build_info),
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.llvm_config_exe = nextValue(&index, build_info),
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.lld_include_dir = nextValue(&index, build_info),
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.lld_libraries = nextValue(&index, build_info),
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.dia_guids_lib = nextValue(&index, build_info),
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.llvm = undefined,
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};
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ctx.llvm = try findLLVM(b, ctx.llvm_config_exe);
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var test_stage2 = b.addTest("src-self-hosted/test.zig");
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test_stage2.setBuildMode(builtin.Mode.Debug);
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const fmt_build_zig = b.addFmt([_][]const u8{"build.zig"});
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var exe = b.addExecutable("zig", "src-self-hosted/main.zig");
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exe.setBuildMode(mode);
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try configureStage2(b, test_stage2, ctx);
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try configureStage2(b, exe, ctx);
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addLibUserlandStep(b, mode);
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const skip_release = b.option(bool, "skip-release", "Main test suite skips release builds") orelse false;
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const skip_release_small = b.option(bool, "skip-release-small", "Main test suite skips release-small builds") orelse skip_release;
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const skip_release_fast = b.option(bool, "skip-release-fast", "Main test suite skips release-fast builds") orelse skip_release;
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const skip_release_safe = b.option(bool, "skip-release-safe", "Main test suite skips release-safe builds") orelse skip_release;
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const skip_non_native = b.option(bool, "skip-non-native", "Main test suite skips non-native builds") orelse false;
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const skip_self_hosted = b.option(bool, "skip-self-hosted", "Main test suite skips building self hosted compiler") orelse false;
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if (!skip_self_hosted) {
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// TODO re-enable this after https://github.com/ziglang/zig/issues/2377
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//test_step.dependOn(&exe.step);
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}
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const only_install_lib_files = b.option(bool, "lib-files-only", "Only install library files") orelse false;
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if (!only_install_lib_files) {
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b.default_step.dependOn(&exe.step);
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exe.install();
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}
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b.installDirectory(InstallDirectoryOptions{
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.source_dir = "lib",
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.install_dir = .Lib,
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.install_subdir = "zig",
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});
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b.installDirectory(InstallDirectoryOptions{
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.source_dir = "std",
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.install_dir = .Lib,
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.install_subdir = "zig" ++ fs.path.sep_str ++ "std",
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.exclude_extensions = [_][]const u8{ "test.zig", "README.md" },
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});
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const test_filter = b.option([]const u8, "test-filter", "Skip tests that do not match filter");
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const test_stage2_step = b.step("test-stage2", "Run the stage2 compiler tests");
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test_stage2_step.dependOn(&test_stage2.step);
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// TODO see https://github.com/ziglang/zig/issues/1364
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if (false) {
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test_step.dependOn(test_stage2_step);
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}
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var chosen_modes: [4]builtin.Mode = undefined;
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var chosen_mode_index: usize = 0;
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chosen_modes[chosen_mode_index] = builtin.Mode.Debug;
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chosen_mode_index += 1;
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if (!skip_release_safe) {
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chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseSafe;
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chosen_mode_index += 1;
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}
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if (!skip_release_fast) {
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chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseFast;
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chosen_mode_index += 1;
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}
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if (!skip_release_small) {
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chosen_modes[chosen_mode_index] = builtin.Mode.ReleaseSmall;
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chosen_mode_index += 1;
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}
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const modes = chosen_modes[0..chosen_mode_index];
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const multi_and_single = [_]bool{ false, true };
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const just_multi = [_]bool{false};
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// run stage1 `zig fmt` on this build.zig file just to make sure it works
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test_step.dependOn(&fmt_build_zig.step);
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const fmt_step = b.step("test-fmt", "Run zig fmt against build.zig to make sure it works");
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fmt_step.dependOn(&fmt_build_zig.step);
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test_step.dependOn(tests.addPkgTests(b, test_filter, "test/stage1/behavior.zig", "behavior", "Run the behavior tests", modes, multi_and_single, skip_non_native));
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test_step.dependOn(tests.addPkgTests(b, test_filter, "std/std.zig", "std", "Run the standard library tests", modes, multi_and_single, skip_non_native));
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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));
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test_step.dependOn(tests.addCompareOutputTests(b, test_filter, modes));
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test_step.dependOn(tests.addStandaloneTests(b, test_filter, modes));
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test_step.dependOn(tests.addStackTraceTests(b, test_filter, modes));
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test_step.dependOn(tests.addCliTests(b, test_filter, modes));
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test_step.dependOn(tests.addAssembleAndLinkTests(b, test_filter, modes));
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test_step.dependOn(tests.addRuntimeSafetyTests(b, test_filter, modes));
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test_step.dependOn(tests.addTranslateCTests(b, test_filter));
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test_step.dependOn(tests.addGenHTests(b, test_filter));
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test_step.dependOn(tests.addCompileErrorTests(b, test_filter, modes));
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test_step.dependOn(docs_step);
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}
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fn dependOnLib(b: *Builder, lib_exe_obj: var, dep: LibraryDep) void {
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for (dep.libdirs.toSliceConst()) |lib_dir| {
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lib_exe_obj.addLibPath(lib_dir);
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}
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const lib_dir = fs.path.join(
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b.allocator,
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[_][]const u8{ dep.prefix, "lib" },
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) catch unreachable;
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for (dep.system_libs.toSliceConst()) |lib| {
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const static_bare_name = if (mem.eql(u8, lib, "curses"))
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([]const u8)("libncurses.a")
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else
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b.fmt("lib{}.a", lib);
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const static_lib_name = fs.path.join(
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b.allocator,
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[_][]const u8{ lib_dir, static_bare_name },
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) catch unreachable;
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const have_static = fileExists(static_lib_name) catch unreachable;
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if (have_static) {
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lib_exe_obj.addObjectFile(static_lib_name);
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} else {
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lib_exe_obj.linkSystemLibrary(lib);
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}
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}
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for (dep.libs.toSliceConst()) |lib| {
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lib_exe_obj.addObjectFile(lib);
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}
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for (dep.includes.toSliceConst()) |include_path| {
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lib_exe_obj.addIncludeDir(include_path);
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}
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}
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fn fileExists(filename: []const u8) !bool {
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fs.File.access(filename) catch |err| switch (err) {
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error.FileNotFound => return false,
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else => return err,
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};
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return true;
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}
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fn addCppLib(b: *Builder, lib_exe_obj: var, cmake_binary_dir: []const u8, lib_name: []const u8) void {
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lib_exe_obj.addObjectFile(fs.path.join(b.allocator, [_][]const u8{
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cmake_binary_dir,
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"zig_cpp",
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b.fmt("{}{}{}", lib_exe_obj.target.libPrefix(), lib_name, lib_exe_obj.target.staticLibSuffix()),
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}) catch unreachable);
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}
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const LibraryDep = struct {
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prefix: []const u8,
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libdirs: ArrayList([]const u8),
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libs: ArrayList([]const u8),
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system_libs: ArrayList([]const u8),
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includes: ArrayList([]const u8),
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};
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fn findLLVM(b: *Builder, llvm_config_exe: []const u8) !LibraryDep {
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const shared_mode = try b.exec([_][]const u8{ llvm_config_exe, "--shared-mode" });
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const is_static = mem.startsWith(u8, shared_mode, "static");
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const libs_output = if (is_static)
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try b.exec([_][]const u8{
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llvm_config_exe,
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"--libfiles",
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"--system-libs",
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})
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else
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try b.exec([_][]const u8{
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llvm_config_exe,
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"--libs",
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});
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const includes_output = try b.exec([_][]const u8{ llvm_config_exe, "--includedir" });
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const libdir_output = try b.exec([_][]const u8{ llvm_config_exe, "--libdir" });
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const prefix_output = try b.exec([_][]const u8{ llvm_config_exe, "--prefix" });
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var result = LibraryDep{
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.prefix = mem.tokenize(prefix_output, " \r\n").next().?,
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.libs = ArrayList([]const u8).init(b.allocator),
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.system_libs = ArrayList([]const u8).init(b.allocator),
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.includes = ArrayList([]const u8).init(b.allocator),
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.libdirs = ArrayList([]const u8).init(b.allocator),
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};
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{
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var it = mem.tokenize(libs_output, " \r\n");
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while (it.next()) |lib_arg| {
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if (mem.startsWith(u8, lib_arg, "-l")) {
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try result.system_libs.append(lib_arg[2..]);
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} else {
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if (fs.path.isAbsolute(lib_arg)) {
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try result.libs.append(lib_arg);
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} else {
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try result.system_libs.append(lib_arg);
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}
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}
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}
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}
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{
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var it = mem.tokenize(includes_output, " \r\n");
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while (it.next()) |include_arg| {
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if (mem.startsWith(u8, include_arg, "-I")) {
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try result.includes.append(include_arg[2..]);
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} else {
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try result.includes.append(include_arg);
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}
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}
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}
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{
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var it = mem.tokenize(libdir_output, " \r\n");
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while (it.next()) |libdir| {
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if (mem.startsWith(u8, libdir, "-L")) {
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try result.libdirs.append(libdir[2..]);
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} else {
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try result.libdirs.append(libdir);
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}
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}
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}
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return result;
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}
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fn nextValue(index: *usize, build_info: []const u8) []const u8 {
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const start = index.*;
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while (true) : (index.* += 1) {
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switch (build_info[index.*]) {
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'\n' => {
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const result = build_info[start..index.*];
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index.* += 1;
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return result;
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},
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'\r' => {
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const result = build_info[start..index.*];
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index.* += 2;
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return result;
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},
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else => continue,
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}
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}
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}
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fn configureStage2(b: *Builder, exe: var, ctx: Context) !void {
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exe.addIncludeDir("src");
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exe.addIncludeDir(ctx.cmake_binary_dir);
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addCppLib(b, exe, ctx.cmake_binary_dir, "zig_cpp");
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if (ctx.lld_include_dir.len != 0) {
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exe.addIncludeDir(ctx.lld_include_dir);
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var it = mem.tokenize(ctx.lld_libraries, ";");
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while (it.next()) |lib| {
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exe.addObjectFile(lib);
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}
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} else {
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addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_wasm");
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addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_elf");
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addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_coff");
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addCppLib(b, exe, ctx.cmake_binary_dir, "embedded_lld_lib");
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}
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dependOnLib(b, exe, ctx.llvm);
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if (exe.target.getOs() == .linux) {
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try addCxxKnownPath(b, ctx, exe, "libstdc++.a",
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\\Unable to determine path to libstdc++.a
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\\On Fedora, install libstdc++-static and try again.
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);
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exe.linkSystemLibrary("pthread");
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} else if (exe.target.isFreeBSD()) {
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try addCxxKnownPath(b, ctx, exe, "libc++.a", null);
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exe.linkSystemLibrary("pthread");
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} else if (exe.target.isDarwin()) {
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if (addCxxKnownPath(b, ctx, exe, "libgcc_eh.a", "")) {
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// Compiler is GCC.
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try addCxxKnownPath(b, ctx, exe, "libstdc++.a", null);
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exe.linkSystemLibrary("pthread");
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// TODO LLD cannot perform this link.
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// See https://github.com/ziglang/zig/issues/1535
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exe.enableSystemLinkerHack();
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} else |err| switch (err) {
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error.RequiredLibraryNotFound => {
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// System compiler, not gcc.
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exe.linkSystemLibrary("c++");
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},
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else => return err,
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}
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}
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if (ctx.dia_guids_lib.len != 0) {
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exe.addObjectFile(ctx.dia_guids_lib);
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}
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exe.linkSystemLibrary("c");
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}
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fn addCxxKnownPath(
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b: *Builder,
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ctx: Context,
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exe: var,
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objname: []const u8,
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errtxt: ?[]const u8,
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) !void {
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const path_padded = try b.exec([_][]const u8{
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ctx.cxx_compiler,
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b.fmt("-print-file-name={}", objname),
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});
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const path_unpadded = mem.tokenize(path_padded, "\r\n").next().?;
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if (mem.eql(u8, path_unpadded, objname)) {
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if (errtxt) |msg| {
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warn("{}", msg);
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} else {
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warn("Unable to determine path to {}\n", objname);
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}
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return error.RequiredLibraryNotFound;
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}
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exe.addObjectFile(path_unpadded);
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}
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const Context = struct {
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cmake_binary_dir: []const u8,
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cxx_compiler: []const u8,
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llvm_config_exe: []const u8,
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lld_include_dir: []const u8,
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lld_libraries: []const u8,
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dia_guids_lib: []const u8,
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llvm: LibraryDep,
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};
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fn addLibUserlandStep(b: *Builder, mode: builtin.Mode) void {
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const artifact = b.addStaticLibrary("userland", "src-self-hosted/stage1.zig");
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artifact.disable_gen_h = true;
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artifact.bundle_compiler_rt = true;
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artifact.setTarget(builtin.arch, builtin.os, builtin.abi);
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artifact.setBuildMode(mode);
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if (mode != .Debug) {
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artifact.strip = true;
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}
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artifact.linkSystemLibrary("c");
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if (builtin.os == .windows) {
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artifact.linkSystemLibrary("ntdll");
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}
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const libuserland_step = b.step("libuserland", "Build the userland compiler library for use in stage1");
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libuserland_step.dependOn(&artifact.step);
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const output_dir = b.option(
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[]const u8,
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"output-dir",
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"For libuserland step, where to put the output",
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) orelse return;
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artifact.setOutputDir(output_dir);
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}
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