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@andrewrk @Vexu @kubkon @LemonBoy @FireFox317 @SpexGuy @Hejsil @squeek502 @mikdusan @jayschwa @g-w1 @mgxm
const std = @import("std");
const builtin = std.builtin;
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 io = std.io;
const fs = std.fs;
const InstallDirectoryOptions = std.build.InstallDirectoryOptions;
const assert = std.debug.assert;
const zig_version = std.builtin.Version{ .major = 0, .minor = 9, .patch = 0 };
pub fn build(b: *Builder) !void {
b.setPreferredReleaseMode(.ReleaseFast);
const mode = b.standardReleaseOptions();
const target = b.standardTargetOptions(.{});
const single_threaded = b.option(bool, "single-threaded", "Build artifacts that run in single threaded mode") orelse false;
const use_zig_libcxx = b.option(bool, "use-zig-libcxx", "If libc++ is needed, use zig's bundled version, don't try to integrate with the system") orelse false;
var docgen_exe = b.addExecutable("docgen", "doc/docgen.zig");
docgen_exe.single_threaded = single_threaded;
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 toolchain_step = b.step("test-toolchain", "Run the tests for the toolchain");
var test_stage2 = b.addTest("src/test.zig");
test_stage2.setBuildMode(mode);
test_stage2.addPackagePath("test_cases", "test/cases.zig");
test_stage2.single_threaded = single_threaded;
const fmt_build_zig = b.addFmt(&[_][]const u8{"build.zig"});
const skip_debug = b.option(bool, "skip-debug", "Main test suite skips debug builds") orelse false;
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_libc = b.option(bool, "skip-libc", "Main test suite skips tests that link libc") orelse false;
const skip_compile_errors = b.option(bool, "skip-compile-errors", "Main test suite skips compile error tests") orelse false;
const skip_run_translated_c = b.option(bool, "skip-run-translated-c", "Main test suite skips run-translated-c tests") orelse false;
const skip_stage2_tests = b.option(bool, "skip-stage2-tests", "Main test suite skips self-hosted compiler tests") orelse false;
const skip_install_lib_files = b.option(bool, "skip-install-lib-files", "Do not copy lib/ files to installation prefix") orelse false;
const only_install_lib_files = b.option(bool, "lib-files-only", "Only install library files") orelse false;
const is_stage1 = b.option(bool, "stage1", "Build the stage1 compiler, put stage2 behind a feature flag") orelse false;
const omit_stage2 = b.option(bool, "omit-stage2", "Do not include stage2 behind a feature flag inside stage1") orelse false;
const static_llvm = b.option(bool, "static-llvm", "Disable integration with system-installed LLVM, Clang, LLD, and libc++") orelse false;
const enable_llvm = b.option(bool, "enable-llvm", "Build self-hosted compiler with LLVM backend enabled") orelse (is_stage1 or static_llvm);
const enable_macos_sdk = b.option(bool, "enable-macos-sdk", "Run tests requiring presence of macOS SDK and frameworks") orelse false;
const config_h_path_option = b.option([]const u8, "config_h", "Path to the generated config.h");
if (!skip_install_lib_files) {
b.installDirectory(InstallDirectoryOptions{
.source_dir = "lib",
.install_dir = .lib,
.install_subdir = "zig",
.exclude_extensions = &[_][]const u8{
"README.md",
".z.0",
".z.9",
".gz",
"rfc1951.txt",
},
.blank_extensions = &[_][]const u8{
"test.zig",
},
});
}
if (only_install_lib_files)
return;
const tracy = b.option([]const u8, "tracy", "Enable Tracy integration. Supply path to Tracy source");
const link_libc = b.option(bool, "force-link-libc", "Force self-hosted compiler to link libc") orelse enable_llvm;
const strip = b.option(bool, "strip", "Omit debug information") orelse false;
const mem_leak_frames: u32 = b.option(u32, "mem-leak-frames", "How many stack frames to print when a memory leak occurs. Tests get 2x this amount.") orelse blk: {
if (strip) break :blk @as(u32, 0);
if (mode != .Debug) break :blk 0;
break :blk 4;
};
const main_file = if (is_stage1) "src/stage1.zig" else "src/main.zig";
var exe = b.addExecutable("zig", main_file);
exe.strip = strip;
exe.install();
exe.setBuildMode(mode);
exe.setTarget(target);
if (!skip_stage2_tests) {
toolchain_step.dependOn(&exe.step);
}
b.default_step.dependOn(&exe.step);
exe.single_threaded = single_threaded;
if (target.isWindows() and target.getAbi() == .gnu) {
// LTO is currently broken on mingw, this can be removed when it's fixed.
exe.want_lto = false;
test_stage2.want_lto = false;
}
const exe_options = b.addOptions();
exe.addOptions("build_options", exe_options);
exe_options.addOption(u32, "mem_leak_frames", mem_leak_frames);
exe_options.addOption(bool, "skip_non_native", skip_non_native);
exe_options.addOption(bool, "have_llvm", enable_llvm);
if (enable_llvm) {
const cmake_cfg = if (static_llvm) null else findAndParseConfigH(b, config_h_path_option);
if (is_stage1) {
exe.addIncludeDir("src");
exe.addIncludeDir("deps/SoftFloat-3e/source/include");
test_stage2.addIncludeDir("src");
test_stage2.addIncludeDir("deps/SoftFloat-3e/source/include");
// This is intentionally a dummy path. stage1.zig tries to @import("compiler_rt") in case
// of being built by cmake. But when built by zig it's gonna get a compiler_rt so that
// is pointless.
exe.addPackagePath("compiler_rt", "src/empty.zig");
exe.defineCMacro("ZIG_LINK_MODE", "Static");
test_stage2.defineCMacro("ZIG_LINK_MODE", "Static");
const softfloat = b.addStaticLibrary("softfloat", null);
softfloat.setBuildMode(.ReleaseFast);
softfloat.setTarget(target);
softfloat.addIncludeDir("deps/SoftFloat-3e-prebuilt");
softfloat.addIncludeDir("deps/SoftFloat-3e/source/8086");
softfloat.addIncludeDir("deps/SoftFloat-3e/source/include");
softfloat.addCSourceFiles(&softfloat_sources, &[_][]const u8{ "-std=c99", "-O3" });
softfloat.single_threaded = single_threaded;
exe.linkLibrary(softfloat);
test_stage2.linkLibrary(softfloat);
exe.addCSourceFiles(&stage1_sources, &exe_cflags);
exe.addCSourceFiles(&optimized_c_sources, &[_][]const u8{ "-std=c99", "-O3" });
test_stage2.addCSourceFiles(&stage1_sources, &exe_cflags);
test_stage2.addCSourceFiles(&optimized_c_sources, &[_][]const u8{ "-std=c99", "-O3" });
}
if (cmake_cfg) |cfg| {
// Inside this code path, we have to coordinate with system packaged LLVM, Clang, and LLD.
// That means we also have to rely on stage1 compiled c++ files. We parse config.h to find
// the information passed on to us from cmake.
if (cfg.cmake_prefix_path.len > 0) {
b.addSearchPrefix(cfg.cmake_prefix_path);
}
try addCmakeCfgOptionsToExe(b, cfg, exe, use_zig_libcxx);
try addCmakeCfgOptionsToExe(b, cfg, test_stage2, use_zig_libcxx);
} else {
// Here we are -Denable-llvm but no cmake integration.
try addStaticLlvmOptionsToExe(exe);
try addStaticLlvmOptionsToExe(test_stage2);
}
}
if (link_libc) {
exe.linkLibC();
test_stage2.linkLibC();
}
const enable_logging = b.option(bool, "log", "Whether to enable logging") orelse false;
const opt_version_string = b.option([]const u8, "version-string", "Override Zig version string. Default is to find out with git.");
const version = if (opt_version_string) |version| version else v: {
const version_string = b.fmt("{d}.{d}.{d}", .{ zig_version.major, zig_version.minor, zig_version.patch });
var code: u8 = undefined;
const git_describe_untrimmed = b.execAllowFail(&[_][]const u8{
"git", "-C", b.build_root, "describe", "--match", "*.*.*", "--tags",
}, &code, .Ignore) catch {
break :v version_string;
};
const git_describe = mem.trim(u8, git_describe_untrimmed, " \n\r");
switch (mem.count(u8, git_describe, "-")) {
0 => {
// Tagged release version (e.g. 0.8.0).
if (!mem.eql(u8, git_describe, version_string)) {
std.debug.print("Zig version '{s}' does not match Git tag '{s}'\n", .{ version_string, git_describe });
std.process.exit(1);
}
break :v version_string;
},
2 => {
// Untagged development build (e.g. 0.8.0-684-gbbe2cca1a).
var it = mem.split(u8, git_describe, "-");
const tagged_ancestor = it.next() orelse unreachable;
const commit_height = it.next() orelse unreachable;
const commit_id = it.next() orelse unreachable;
const ancestor_ver = try std.builtin.Version.parse(tagged_ancestor);
if (zig_version.order(ancestor_ver) != .gt) {
std.debug.print("Zig version '{}' must be greater than tagged ancestor '{}'\n", .{ zig_version, ancestor_ver });
std.process.exit(1);
}
// Check that the commit hash is prefixed with a 'g' (a Git convention).
if (commit_id.len < 1 or commit_id[0] != 'g') {
std.debug.print("Unexpected `git describe` output: {s}\n", .{git_describe});
break :v version_string;
}
// The version is reformatted in accordance with the https://semver.org specification.
break :v b.fmt("{s}-dev.{s}+{s}", .{ version_string, commit_height, commit_id[1..] });
},
else => {
std.debug.print("Unexpected `git describe` output: {s}\n", .{git_describe});
break :v version_string;
},
}
};
exe_options.addOption([:0]const u8, "version", try b.allocator.dupeZ(u8, version));
const semver = try std.SemanticVersion.parse(version);
exe_options.addOption(std.SemanticVersion, "semver", semver);
exe_options.addOption(bool, "enable_logging", enable_logging);
exe_options.addOption(bool, "enable_tracy", tracy != null);
exe_options.addOption(bool, "is_stage1", is_stage1);
exe_options.addOption(bool, "omit_stage2", omit_stage2);
if (tracy) |tracy_path| {
const client_cpp = fs.path.join(
b.allocator,
&[_][]const u8{ tracy_path, "TracyClient.cpp" },
) catch unreachable;
// On mingw, we need to opt into windows 7+ to get some features required by tracy.
const tracy_c_flags: []const []const u8 = if (target.isWindows() and target.getAbi() == .gnu)
&[_][]const u8{ "-DTRACY_ENABLE=1", "-fno-sanitize=undefined", "-D_WIN32_WINNT=0x601" }
else
&[_][]const u8{ "-DTRACY_ENABLE=1", "-fno-sanitize=undefined" };
exe.addIncludeDir(tracy_path);
exe.addCSourceFile(client_cpp, tracy_c_flags);
if (!enable_llvm) {
exe.linkSystemLibraryName("c++");
}
exe.linkLibC();
if (target.isWindows()) {
exe.linkSystemLibrary("dbghelp");
exe.linkSystemLibrary("ws2_32");
}
}
const test_filter = b.option([]const u8, "test-filter", "Skip tests that do not match filter");
const is_wine_enabled = b.option(bool, "enable-wine", "Use Wine to run cross compiled Windows tests") orelse false;
const is_qemu_enabled = b.option(bool, "enable-qemu", "Use QEMU to run cross compiled foreign architecture tests") orelse false;
const is_wasmtime_enabled = b.option(bool, "enable-wasmtime", "Use Wasmtime to enable and run WASI libstd tests") orelse false;
const is_darling_enabled = b.option(bool, "enable-darling", "[Experimental] Use Darling to run cross compiled macOS tests") orelse false;
const glibc_multi_dir = b.option([]const u8, "enable-foreign-glibc", "Provide directory with glibc installations to run cross compiled tests that link glibc");
const test_stage2_options = b.addOptions();
test_stage2.addOptions("build_options", test_stage2_options);
test_stage2_options.addOption(bool, "enable_logging", enable_logging);
test_stage2_options.addOption(bool, "skip_non_native", skip_non_native);
test_stage2_options.addOption(bool, "skip_compile_errors", skip_compile_errors);
test_stage2_options.addOption(bool, "is_stage1", is_stage1);
test_stage2_options.addOption(bool, "omit_stage2", omit_stage2);
test_stage2_options.addOption(bool, "have_llvm", enable_llvm);
test_stage2_options.addOption(bool, "enable_qemu", is_qemu_enabled);
test_stage2_options.addOption(bool, "enable_wine", is_wine_enabled);
test_stage2_options.addOption(bool, "enable_wasmtime", is_wasmtime_enabled);
test_stage2_options.addOption(u32, "mem_leak_frames", mem_leak_frames * 2);
test_stage2_options.addOption(bool, "enable_darling", is_darling_enabled);
test_stage2_options.addOption(?[]const u8, "glibc_multi_install_dir", glibc_multi_dir);
test_stage2_options.addOption([:0]const u8, "version", try b.allocator.dupeZ(u8, version));
test_stage2_options.addOption(std.SemanticVersion, "semver", semver);
const test_stage2_step = b.step("test-stage2", "Run the stage2 compiler tests");
test_stage2_step.dependOn(&test_stage2.step);
if (!skip_stage2_tests) {
toolchain_step.dependOn(test_stage2_step);
}
var chosen_modes: [4]builtin.Mode = undefined;
var chosen_mode_index: usize = 0;
if (!skip_debug) {
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];
// run stage1 `zig fmt` on this build.zig file just to make sure it works
toolchain_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);
toolchain_step.dependOn(tests.addPkgTests(
b,
test_filter,
"test/behavior.zig",
"behavior",
"Run the behavior tests",
modes,
false, // skip_single_threaded
skip_non_native,
skip_libc,
is_wine_enabled,
is_qemu_enabled,
is_wasmtime_enabled,
is_darling_enabled,
glibc_multi_dir,
));
toolchain_step.dependOn(tests.addPkgTests(
b,
test_filter,
"lib/std/special/compiler_rt.zig",
"compiler-rt",
"Run the compiler_rt tests",
modes,
true, // skip_single_threaded
skip_non_native,
true, // skip_libc
is_wine_enabled,
is_qemu_enabled,
is_wasmtime_enabled,
is_darling_enabled,
glibc_multi_dir,
));
toolchain_step.dependOn(tests.addPkgTests(
b,
test_filter,
"lib/std/special/c.zig",
"minilibc",
"Run the mini libc tests",
modes,
true, // skip_single_threaded
skip_non_native,
true, // skip_libc
is_wine_enabled,
is_qemu_enabled,
is_wasmtime_enabled,
is_darling_enabled,
glibc_multi_dir,
));
toolchain_step.dependOn(tests.addCompareOutputTests(b, test_filter, modes));
toolchain_step.dependOn(tests.addStandaloneTests(b, test_filter, modes, skip_non_native, enable_macos_sdk, target));
toolchain_step.dependOn(tests.addStackTraceTests(b, test_filter, modes));
toolchain_step.dependOn(tests.addCliTests(b, test_filter, modes));
toolchain_step.dependOn(tests.addAssembleAndLinkTests(b, test_filter, modes));
toolchain_step.dependOn(tests.addRuntimeSafetyTests(b, test_filter, modes));
toolchain_step.dependOn(tests.addTranslateCTests(b, test_filter));
if (!skip_run_translated_c) {
toolchain_step.dependOn(tests.addRunTranslatedCTests(b, test_filter, target));
}
// tests for this feature are disabled until we have the self-hosted compiler available
// toolchain_step.dependOn(tests.addGenHTests(b, test_filter));
const std_step = tests.addPkgTests(
b,
test_filter,
"lib/std/std.zig",
"std",
"Run the standard library tests",
modes,
false,
skip_non_native,
skip_libc,
is_wine_enabled,
is_qemu_enabled,
is_wasmtime_enabled,
is_darling_enabled,
glibc_multi_dir,
);
const test_step = b.step("test", "Run all the tests");
test_step.dependOn(toolchain_step);
test_step.dependOn(std_step);
test_step.dependOn(docs_step);
}
const exe_cflags = [_][]const u8{
"-std=c++14",
"-D__STDC_CONSTANT_MACROS",
"-D__STDC_FORMAT_MACROS",
"-D__STDC_LIMIT_MACROS",
"-D_GNU_SOURCE",
"-fvisibility-inlines-hidden",
"-fno-exceptions",
"-fno-rtti",
"-Werror=type-limits",
"-Wno-missing-braces",
"-Wno-comment",
};
fn addCmakeCfgOptionsToExe(
b: *Builder,
cfg: CMakeConfig,
exe: *std.build.LibExeObjStep,
use_zig_libcxx: bool,
) !void {
exe.addObjectFile(fs.path.join(b.allocator, &[_][]const u8{
cfg.cmake_binary_dir,
"zigcpp",
b.fmt("{s}{s}{s}", .{ exe.target.libPrefix(), "zigcpp", exe.target.staticLibSuffix() }),
}) catch unreachable);
assert(cfg.lld_include_dir.len != 0);
exe.addIncludeDir(cfg.lld_include_dir);
addCMakeLibraryList(exe, cfg.clang_libraries);
addCMakeLibraryList(exe, cfg.lld_libraries);
addCMakeLibraryList(exe, cfg.llvm_libraries);
if (use_zig_libcxx) {
exe.linkLibCpp();
} else {
const need_cpp_includes = true;
// System -lc++ must be used because in this code path we are attempting to link
// against system-provided LLVM, Clang, LLD.
if (exe.target.getOsTag() == .linux) {
// First we try to static link against gcc libstdc++. If that doesn't work,
// we fall back to -lc++ and cross our fingers.
addCxxKnownPath(b, cfg, exe, "libstdc++.a", "", need_cpp_includes) catch |err| switch (err) {
error.RequiredLibraryNotFound => {
exe.linkSystemLibrary("c++");
},
else => |e| return e,
};
exe.linkSystemLibrary("unwind");
} else if (exe.target.isFreeBSD()) {
try addCxxKnownPath(b, cfg, exe, "libc++.a", null, need_cpp_includes);
exe.linkSystemLibrary("pthread");
} else if (exe.target.getOsTag() == .openbsd) {
try addCxxKnownPath(b, cfg, exe, "libc++.a", null, need_cpp_includes);
try addCxxKnownPath(b, cfg, exe, "libc++abi.a", null, need_cpp_includes);
} else if (exe.target.isDarwin()) {
exe.linkSystemLibrary("c++");
}
}
if (cfg.dia_guids_lib.len != 0) {
exe.addObjectFile(cfg.dia_guids_lib);
}
}
fn addStaticLlvmOptionsToExe(
exe: *std.build.LibExeObjStep,
) !void {
// Adds the Zig C++ sources which both stage1 and stage2 need.
//
// We need this because otherwise zig_clang_cc1_main.cpp ends up pulling
// in a dependency on llvm::cfg::Update<llvm::BasicBlock*>::dump() which is
// unavailable when LLVM is compiled in Release mode.
const zig_cpp_cflags = exe_cflags ++ [_][]const u8{"-DNDEBUG=1"};
exe.addCSourceFiles(&zig_cpp_sources, &zig_cpp_cflags);
for (clang_libs) |lib_name| {
exe.linkSystemLibrary(lib_name);
}
for (lld_libs) |lib_name| {
exe.linkSystemLibrary(lib_name);
}
for (llvm_libs) |lib_name| {
exe.linkSystemLibrary(lib_name);
}
// This means we rely on clang-or-zig-built LLVM, Clang, LLD libraries.
exe.linkSystemLibrary("c++");
if (exe.target.getOs().tag == .windows) {
exe.linkSystemLibrary("version");
exe.linkSystemLibrary("uuid");
exe.linkSystemLibrary("ole32");
}
}
fn addCxxKnownPath(
b: *Builder,
ctx: CMakeConfig,
exe: *std.build.LibExeObjStep,
objname: []const u8,
errtxt: ?[]const u8,
need_cpp_includes: bool,
) !void {
const path_padded = try b.exec(&[_][]const u8{
ctx.cxx_compiler,
b.fmt("-print-file-name={s}", .{objname}),
});
const path_unpadded = mem.tokenize(u8, path_padded, "\r\n").next().?;
if (mem.eql(u8, path_unpadded, objname)) {
if (errtxt) |msg| {
warn("{s}", .{msg});
} else {
warn("Unable to determine path to {s}\n", .{objname});
}
return error.RequiredLibraryNotFound;
}
exe.addObjectFile(path_unpadded);
// TODO a way to integrate with system c++ include files here
// cc -E -Wp,-v -xc++ /dev/null
if (need_cpp_includes) {
// I used these temporarily for testing something but we obviously need a
// more general purpose solution here.
//exe.addIncludeDir("/nix/store/fvf3qjqa5qpcjjkq37pb6ypnk1mzhf5h-gcc-9.3.0/lib/gcc/x86_64-unknown-linux-gnu/9.3.0/../../../../include/c++/9.3.0");
//exe.addIncludeDir("/nix/store/fvf3qjqa5qpcjjkq37pb6ypnk1mzhf5h-gcc-9.3.0/lib/gcc/x86_64-unknown-linux-gnu/9.3.0/../../../../include/c++/9.3.0/x86_64-unknown-linux-gnu");
//exe.addIncludeDir("/nix/store/fvf3qjqa5qpcjjkq37pb6ypnk1mzhf5h-gcc-9.3.0/lib/gcc/x86_64-unknown-linux-gnu/9.3.0/../../../../include/c++/9.3.0/backward");
}
}
fn addCMakeLibraryList(exe: *std.build.LibExeObjStep, list: []const u8) void {
var it = mem.tokenize(u8, list, ";");
while (it.next()) |lib| {
if (mem.startsWith(u8, lib, "-l")) {
exe.linkSystemLibrary(lib["-l".len..]);
} else {
exe.addObjectFile(lib);
}
}
}
const CMakeConfig = struct {
cmake_binary_dir: []const u8,
cmake_prefix_path: []const u8,
cxx_compiler: []const u8,
lld_include_dir: []const u8,
lld_libraries: []const u8,
clang_libraries: []const u8,
llvm_libraries: []const u8,
dia_guids_lib: []const u8,
};
const max_config_h_bytes = 1 * 1024 * 1024;
fn findAndParseConfigH(b: *Builder, config_h_path_option: ?[]const u8) ?CMakeConfig {
const config_h_text: []const u8 = if (config_h_path_option) |config_h_path| blk: {
break :blk fs.cwd().readFileAlloc(b.allocator, config_h_path, max_config_h_bytes) catch unreachable;
} else blk: {
// TODO this should stop looking for config.h once it detects we hit the
// zig source root directory.
var check_dir = fs.path.dirname(b.zig_exe).?;
while (true) {
var dir = fs.cwd().openDir(check_dir, .{}) catch unreachable;
defer dir.close();
break :blk dir.readFileAlloc(b.allocator, "config.h", max_config_h_bytes) catch |err| switch (err) {
error.FileNotFound => {
const new_check_dir = fs.path.dirname(check_dir);
if (new_check_dir == null or mem.eql(u8, new_check_dir.?, check_dir)) {
return null;
}
check_dir = new_check_dir.?;
continue;
},
else => unreachable,
};
} else unreachable; // TODO should not need `else unreachable`.
};
var ctx: CMakeConfig = .{
.cmake_binary_dir = undefined,
.cmake_prefix_path = undefined,
.cxx_compiler = undefined,
.lld_include_dir = undefined,
.lld_libraries = undefined,
.clang_libraries = undefined,
.llvm_libraries = undefined,
.dia_guids_lib = undefined,
};
const mappings = [_]struct { prefix: []const u8, field: []const u8 }{
.{
.prefix = "#define ZIG_CMAKE_BINARY_DIR ",
.field = "cmake_binary_dir",
},
.{
.prefix = "#define ZIG_CMAKE_PREFIX_PATH ",
.field = "cmake_prefix_path",
},
.{
.prefix = "#define ZIG_CXX_COMPILER ",
.field = "cxx_compiler",
},
.{
.prefix = "#define ZIG_LLD_INCLUDE_PATH ",
.field = "lld_include_dir",
},
.{
.prefix = "#define ZIG_LLD_LIBRARIES ",
.field = "lld_libraries",
},
.{
.prefix = "#define ZIG_CLANG_LIBRARIES ",
.field = "clang_libraries",
},
.{
.prefix = "#define ZIG_LLVM_LIBRARIES ",
.field = "llvm_libraries",
},
.{
.prefix = "#define ZIG_DIA_GUIDS_LIB ",
.field = "dia_guids_lib",
},
};
var lines_it = mem.tokenize(u8, config_h_text, "\r\n");
while (lines_it.next()) |line| {
inline for (mappings) |mapping| {
if (mem.startsWith(u8, line, mapping.prefix)) {
var it = mem.split(u8, line, "\"");
_ = it.next().?; // skip the stuff before the quote
const quoted = it.next().?; // the stuff inside the quote
@field(ctx, mapping.field) = toNativePathSep(b, quoted);
}
}
}
return ctx;
}
fn toNativePathSep(b: *Builder, s: []const u8) []u8 {
const duplicated = mem.dupe(b.allocator, u8, s) catch unreachable;
for (duplicated) |*byte| switch (byte.*) {
'/' => byte.* = fs.path.sep,
else => {},
};
return duplicated;
}
const softfloat_sources = [_][]const u8{
"deps/SoftFloat-3e/source/8086/f128M_isSignalingNaN.c",
"deps/SoftFloat-3e/source/8086/s_commonNaNToF128M.c",
"deps/SoftFloat-3e/source/8086/s_commonNaNToF16UI.c",
"deps/SoftFloat-3e/source/8086/s_commonNaNToF32UI.c",
"deps/SoftFloat-3e/source/8086/s_commonNaNToF64UI.c",
"deps/SoftFloat-3e/source/8086/s_f128MToCommonNaN.c",
"deps/SoftFloat-3e/source/8086/s_f16UIToCommonNaN.c",
"deps/SoftFloat-3e/source/8086/s_f32UIToCommonNaN.c",
"deps/SoftFloat-3e/source/8086/s_f64UIToCommonNaN.c",
"deps/SoftFloat-3e/source/8086/s_propagateNaNF128M.c",
"deps/SoftFloat-3e/source/8086/s_propagateNaNF16UI.c",
"deps/SoftFloat-3e/source/8086/softfloat_raiseFlags.c",
"deps/SoftFloat-3e/source/f128M_add.c",
"deps/SoftFloat-3e/source/f128M_div.c",
"deps/SoftFloat-3e/source/f128M_eq.c",
"deps/SoftFloat-3e/source/f128M_eq_signaling.c",
"deps/SoftFloat-3e/source/f128M_le.c",
"deps/SoftFloat-3e/source/f128M_le_quiet.c",
"deps/SoftFloat-3e/source/f128M_lt.c",
"deps/SoftFloat-3e/source/f128M_lt_quiet.c",
"deps/SoftFloat-3e/source/f128M_mul.c",
"deps/SoftFloat-3e/source/f128M_mulAdd.c",
"deps/SoftFloat-3e/source/f128M_rem.c",
"deps/SoftFloat-3e/source/f128M_roundToInt.c",
"deps/SoftFloat-3e/source/f128M_sqrt.c",
"deps/SoftFloat-3e/source/f128M_sub.c",
"deps/SoftFloat-3e/source/f128M_to_f16.c",
"deps/SoftFloat-3e/source/f128M_to_f32.c",
"deps/SoftFloat-3e/source/f128M_to_f64.c",
"deps/SoftFloat-3e/source/f128M_to_i32.c",
"deps/SoftFloat-3e/source/f128M_to_i32_r_minMag.c",
"deps/SoftFloat-3e/source/f128M_to_i64.c",
"deps/SoftFloat-3e/source/f128M_to_i64_r_minMag.c",
"deps/SoftFloat-3e/source/f128M_to_ui32.c",
"deps/SoftFloat-3e/source/f128M_to_ui32_r_minMag.c",
"deps/SoftFloat-3e/source/f128M_to_ui64.c",
"deps/SoftFloat-3e/source/f128M_to_ui64_r_minMag.c",
"deps/SoftFloat-3e/source/f16_add.c",
"deps/SoftFloat-3e/source/f16_div.c",
"deps/SoftFloat-3e/source/f16_eq.c",
"deps/SoftFloat-3e/source/f16_isSignalingNaN.c",
"deps/SoftFloat-3e/source/f16_lt.c",
"deps/SoftFloat-3e/source/f16_mul.c",
"deps/SoftFloat-3e/source/f16_mulAdd.c",
"deps/SoftFloat-3e/source/f16_rem.c",
"deps/SoftFloat-3e/source/f16_roundToInt.c",
"deps/SoftFloat-3e/source/f16_sqrt.c",
"deps/SoftFloat-3e/source/f16_sub.c",
"deps/SoftFloat-3e/source/f16_to_f128M.c",
"deps/SoftFloat-3e/source/f16_to_f64.c",
"deps/SoftFloat-3e/source/f32_to_f128M.c",
"deps/SoftFloat-3e/source/f64_to_f128M.c",
"deps/SoftFloat-3e/source/f64_to_f16.c",
"deps/SoftFloat-3e/source/i32_to_f128M.c",
"deps/SoftFloat-3e/source/s_add256M.c",
"deps/SoftFloat-3e/source/s_addCarryM.c",
"deps/SoftFloat-3e/source/s_addComplCarryM.c",
"deps/SoftFloat-3e/source/s_addF128M.c",
"deps/SoftFloat-3e/source/s_addM.c",
"deps/SoftFloat-3e/source/s_addMagsF16.c",
"deps/SoftFloat-3e/source/s_addMagsF32.c",
"deps/SoftFloat-3e/source/s_addMagsF64.c",
"deps/SoftFloat-3e/source/s_approxRecip32_1.c",
"deps/SoftFloat-3e/source/s_approxRecipSqrt32_1.c",
"deps/SoftFloat-3e/source/s_approxRecipSqrt_1Ks.c",
"deps/SoftFloat-3e/source/s_approxRecip_1Ks.c",
"deps/SoftFloat-3e/source/s_compare128M.c",
"deps/SoftFloat-3e/source/s_compare96M.c",
"deps/SoftFloat-3e/source/s_countLeadingZeros16.c",
"deps/SoftFloat-3e/source/s_countLeadingZeros32.c",
"deps/SoftFloat-3e/source/s_countLeadingZeros64.c",
"deps/SoftFloat-3e/source/s_countLeadingZeros8.c",
"deps/SoftFloat-3e/source/s_eq128.c",
"deps/SoftFloat-3e/source/s_invalidF128M.c",
"deps/SoftFloat-3e/source/s_isNaNF128M.c",
"deps/SoftFloat-3e/source/s_le128.c",
"deps/SoftFloat-3e/source/s_lt128.c",
"deps/SoftFloat-3e/source/s_mul128MTo256M.c",
"deps/SoftFloat-3e/source/s_mul64To128M.c",
"deps/SoftFloat-3e/source/s_mulAddF128M.c",
"deps/SoftFloat-3e/source/s_mulAddF16.c",
"deps/SoftFloat-3e/source/s_mulAddF32.c",
"deps/SoftFloat-3e/source/s_mulAddF64.c",
"deps/SoftFloat-3e/source/s_negXM.c",
"deps/SoftFloat-3e/source/s_normRoundPackMToF128M.c",
"deps/SoftFloat-3e/source/s_normRoundPackToF16.c",
"deps/SoftFloat-3e/source/s_normRoundPackToF32.c",
"deps/SoftFloat-3e/source/s_normRoundPackToF64.c",
"deps/SoftFloat-3e/source/s_normSubnormalF128SigM.c",
"deps/SoftFloat-3e/source/s_normSubnormalF16Sig.c",
"deps/SoftFloat-3e/source/s_normSubnormalF32Sig.c",
"deps/SoftFloat-3e/source/s_normSubnormalF64Sig.c",
"deps/SoftFloat-3e/source/s_remStepMBy32.c",
"deps/SoftFloat-3e/source/s_roundMToI64.c",
"deps/SoftFloat-3e/source/s_roundMToUI64.c",
"deps/SoftFloat-3e/source/s_roundPackMToF128M.c",
"deps/SoftFloat-3e/source/s_roundPackToF16.c",
"deps/SoftFloat-3e/source/s_roundPackToF32.c",
"deps/SoftFloat-3e/source/s_roundPackToF64.c",
"deps/SoftFloat-3e/source/s_roundToI32.c",
"deps/SoftFloat-3e/source/s_roundToI64.c",
"deps/SoftFloat-3e/source/s_roundToUI32.c",
"deps/SoftFloat-3e/source/s_roundToUI64.c",
"deps/SoftFloat-3e/source/s_shiftLeftM.c",
"deps/SoftFloat-3e/source/s_shiftNormSigF128M.c",
"deps/SoftFloat-3e/source/s_shiftRightJam256M.c",
"deps/SoftFloat-3e/source/s_shiftRightJam32.c",
"deps/SoftFloat-3e/source/s_shiftRightJam64.c",
"deps/SoftFloat-3e/source/s_shiftRightJamM.c",
"deps/SoftFloat-3e/source/s_shiftRightM.c",
"deps/SoftFloat-3e/source/s_shortShiftLeft64To96M.c",
"deps/SoftFloat-3e/source/s_shortShiftLeftM.c",
"deps/SoftFloat-3e/source/s_shortShiftRightExtendM.c",
"deps/SoftFloat-3e/source/s_shortShiftRightJam64.c",
"deps/SoftFloat-3e/source/s_shortShiftRightJamM.c",
"deps/SoftFloat-3e/source/s_shortShiftRightM.c",
"deps/SoftFloat-3e/source/s_sub1XM.c",
"deps/SoftFloat-3e/source/s_sub256M.c",
"deps/SoftFloat-3e/source/s_subM.c",
"deps/SoftFloat-3e/source/s_subMagsF16.c",
"deps/SoftFloat-3e/source/s_subMagsF32.c",
"deps/SoftFloat-3e/source/s_subMagsF64.c",
"deps/SoftFloat-3e/source/s_tryPropagateNaNF128M.c",
"deps/SoftFloat-3e/source/softfloat_state.c",
"deps/SoftFloat-3e/source/ui32_to_f128M.c",
"deps/SoftFloat-3e/source/ui64_to_f128M.c",
};
const stage1_sources = [_][]const u8{
"src/stage1/analyze.cpp",
"src/stage1/astgen.cpp",
"src/stage1/bigfloat.cpp",
"src/stage1/bigint.cpp",
"src/stage1/buffer.cpp",
"src/stage1/codegen.cpp",
"src/stage1/dump_analysis.cpp",
"src/stage1/errmsg.cpp",
"src/stage1/error.cpp",
"src/stage1/heap.cpp",
"src/stage1/ir.cpp",
"src/stage1/ir_print.cpp",
"src/stage1/mem.cpp",
"src/stage1/os.cpp",
"src/stage1/parser.cpp",
"src/stage1/range_set.cpp",
"src/stage1/stage1.cpp",
"src/stage1/target.cpp",
"src/stage1/tokenizer.cpp",
"src/stage1/util.cpp",
"src/stage1/softfloat_ext.cpp",
};
const optimized_c_sources = [_][]const u8{
"src/stage1/parse_f128.c",
};
const zig_cpp_sources = [_][]const u8{
// These are planned to stay even when we are self-hosted.
"src/zig_llvm.cpp",
"src/zig_clang.cpp",
"src/zig_llvm-ar.cpp",
"src/zig_clang_driver.cpp",
"src/zig_clang_cc1_main.cpp",
"src/zig_clang_cc1as_main.cpp",
// https://github.com/ziglang/zig/issues/6363
"src/windows_sdk.cpp",
};
const clang_libs = [_][]const u8{
"clangFrontendTool",
"clangCodeGen",
"clangFrontend",
"clangDriver",
"clangSerialization",
"clangSema",
"clangStaticAnalyzerFrontend",
"clangStaticAnalyzerCheckers",
"clangStaticAnalyzerCore",
"clangAnalysis",
"clangASTMatchers",
"clangAST",
"clangParse",
"clangSema",
"clangBasic",
"clangEdit",
"clangLex",
"clangARCMigrate",
"clangRewriteFrontend",
"clangRewrite",
"clangCrossTU",
"clangIndex",
"clangToolingCore",
};
const lld_libs = [_][]const u8{
"lldDriver",
"lldMinGW",
"lldELF",
"lldCOFF",
"lldMachO",
"lldWasm",
"lldReaderWriter",
"lldCore",
"lldYAML",
"lldCommon",
};
// This list can be re-generated with `llvm-config --libfiles` and then
// reformatting using your favorite text editor. Note we do not execute
// `llvm-config` here because we are cross compiling. Also omit LLVMTableGen
// from these libs.
const llvm_libs = [_][]const u8{
"LLVMWindowsManifest",
"LLVMXRay",
"LLVMLibDriver",
"LLVMDlltoolDriver",
"LLVMCoverage",
"LLVMLineEditor",
"LLVMXCoreDisassembler",
"LLVMXCoreCodeGen",
"LLVMXCoreDesc",
"LLVMXCoreInfo",
"LLVMX86Disassembler",
"LLVMX86AsmParser",
"LLVMX86CodeGen",
"LLVMX86Desc",
"LLVMX86Info",
"LLVMWebAssemblyDisassembler",
"LLVMWebAssemblyAsmParser",
"LLVMWebAssemblyCodeGen",
"LLVMWebAssemblyDesc",
"LLVMWebAssemblyInfo",
"LLVMSystemZDisassembler",
"LLVMSystemZAsmParser",
"LLVMSystemZCodeGen",
"LLVMSystemZDesc",
"LLVMSystemZInfo",
"LLVMSparcDisassembler",
"LLVMSparcAsmParser",
"LLVMSparcCodeGen",
"LLVMSparcDesc",
"LLVMSparcInfo",
"LLVMRISCVDisassembler",
"LLVMRISCVAsmParser",
"LLVMRISCVCodeGen",
"LLVMRISCVDesc",
"LLVMRISCVInfo",
"LLVMPowerPCDisassembler",
"LLVMPowerPCAsmParser",
"LLVMPowerPCCodeGen",
"LLVMPowerPCDesc",
"LLVMPowerPCInfo",
"LLVMNVPTXCodeGen",
"LLVMNVPTXDesc",
"LLVMNVPTXInfo",
"LLVMMSP430Disassembler",
"LLVMMSP430AsmParser",
"LLVMMSP430CodeGen",
"LLVMMSP430Desc",
"LLVMMSP430Info",
"LLVMMipsDisassembler",
"LLVMMipsAsmParser",
"LLVMMipsCodeGen",
"LLVMMipsDesc",
"LLVMMipsInfo",
"LLVMLanaiDisassembler",
"LLVMLanaiCodeGen",
"LLVMLanaiAsmParser",
"LLVMLanaiDesc",
"LLVMLanaiInfo",
"LLVMHexagonDisassembler",
"LLVMHexagonCodeGen",
"LLVMHexagonAsmParser",
"LLVMHexagonDesc",
"LLVMHexagonInfo",
"LLVMBPFDisassembler",
"LLVMBPFAsmParser",
"LLVMBPFCodeGen",
"LLVMBPFDesc",
"LLVMBPFInfo",
"LLVMAVRDisassembler",
"LLVMAVRAsmParser",
"LLVMAVRCodeGen",
"LLVMAVRDesc",
"LLVMAVRInfo",
"LLVMARMDisassembler",
"LLVMARMAsmParser",
"LLVMARMCodeGen",
"LLVMARMDesc",
"LLVMARMUtils",
"LLVMARMInfo",
"LLVMAMDGPUDisassembler",
"LLVMAMDGPUAsmParser",
"LLVMAMDGPUCodeGen",
"LLVMAMDGPUDesc",
"LLVMAMDGPUUtils",
"LLVMAMDGPUInfo",
"LLVMAArch64Disassembler",
"LLVMAArch64AsmParser",
"LLVMAArch64CodeGen",
"LLVMAArch64Desc",
"LLVMAArch64Utils",
"LLVMAArch64Info",
"LLVMOrcJIT",
"LLVMMCJIT",
"LLVMJITLink",
"LLVMOrcTargetProcess",
"LLVMOrcShared",
"LLVMInterpreter",
"LLVMExecutionEngine",
"LLVMRuntimeDyld",
"LLVMSymbolize",
"LLVMDebugInfoPDB",
"LLVMDebugInfoGSYM",
"LLVMOption",
"LLVMObjectYAML",
"LLVMMCA",
"LLVMMCDisassembler",
"LLVMLTO",
"LLVMPasses",
"LLVMCFGuard",
"LLVMCoroutines",
"LLVMObjCARCOpts",
"LLVMHelloNew",
"LLVMipo",
"LLVMVectorize",
"LLVMLinker",
"LLVMInstrumentation",
"LLVMFrontendOpenMP",
"LLVMFrontendOpenACC",
"LLVMExtensions",
"LLVMDWARFLinker",
"LLVMGlobalISel",
"LLVMMIRParser",
"LLVMAsmPrinter",
"LLVMDebugInfoDWARF",
"LLVMSelectionDAG",
"LLVMCodeGen",
"LLVMIRReader",
"LLVMAsmParser",
"LLVMInterfaceStub",
"LLVMFileCheck",
"LLVMFuzzMutate",
"LLVMTarget",
"LLVMScalarOpts",
"LLVMInstCombine",
"LLVMAggressiveInstCombine",
"LLVMTransformUtils",
"LLVMBitWriter",
"LLVMAnalysis",
"LLVMProfileData",
"LLVMObject",
"LLVMTextAPI",
"LLVMMCParser",
"LLVMMC",
"LLVMDebugInfoCodeView",
"LLVMDebugInfoMSF",
"LLVMBitReader",
"LLVMCore",
"LLVMRemarks",
"LLVMBitstreamReader",
"LLVMBinaryFormat",
"LLVMSupport",
"LLVMDemangle",
};