561 lines
21 KiB
Zig
561 lines
21 KiB
Zig
const std = @import("std");
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const path = std.fs.path;
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const assert = std.debug.assert;
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const target_util = @import("../target.zig");
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const Compilation = @import("../Compilation.zig");
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const build_options = @import("build_options");
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const trace = @import("../tracy.zig").trace;
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const Module = @import("../Package/Module.zig");
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const libcxxabi_files = [_][]const u8{
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"src/cxa_aux_runtime.cpp",
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"src/cxa_default_handlers.cpp",
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"src/cxa_demangle.cpp",
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"src/cxa_exception_storage.cpp",
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"src/cxa_guard.cpp",
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"src/cxa_handlers.cpp",
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"src/cxa_vector.cpp",
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"src/cxa_virtual.cpp",
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"src/stdlib_exception.cpp",
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"src/stdlib_stdexcept.cpp",
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"src/stdlib_typeinfo.cpp",
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"src/stdlib_new_delete.cpp",
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"src/abort_message.cpp",
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"src/fallback_malloc.cpp",
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"src/private_typeinfo.cpp",
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"src/cxa_exception.cpp",
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"src/cxa_personality.cpp",
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"src/cxa_noexception.cpp",
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"src/cxa_thread_atexit.cpp",
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};
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const libcxx_base_files = [_][]const u8{
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"src/algorithm.cpp",
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"src/any.cpp",
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"src/bind.cpp",
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"src/call_once.cpp",
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"src/charconv.cpp",
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"src/chrono.cpp",
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"src/error_category.cpp",
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"src/exception.cpp",
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"src/expected.cpp",
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"src/filesystem/directory_entry.cpp",
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"src/filesystem/directory_iterator.cpp",
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"src/filesystem/filesystem_clock.cpp",
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"src/filesystem/filesystem_error.cpp",
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// omit int128_builtins.cpp because it provides __muloti4 which is already provided
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// by compiler_rt and crashes on Windows x86_64: https://github.com/ziglang/zig/issues/10719
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//"src/filesystem/int128_builtins.cpp",
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"src/filesystem/operations.cpp",
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"src/filesystem/path.cpp",
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"src/fstream.cpp",
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"src/functional.cpp",
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"src/hash.cpp",
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"src/ios.cpp",
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"src/ios.instantiations.cpp",
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"src/iostream.cpp",
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"src/locale.cpp",
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"src/memory.cpp",
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"src/memory_resource.cpp",
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"src/new.cpp",
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"src/new_handler.cpp",
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"src/new_helpers.cpp",
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"src/optional.cpp",
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"src/ostream.cpp",
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"src/print.cpp",
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//"src/pstl/libdispatch.cpp",
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"src/random.cpp",
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"src/random_shuffle.cpp",
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"src/regex.cpp",
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"src/ryu/d2fixed.cpp",
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"src/ryu/d2s.cpp",
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"src/ryu/f2s.cpp",
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"src/stdexcept.cpp",
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"src/string.cpp",
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"src/strstream.cpp",
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"src/support/ibm/mbsnrtowcs.cpp",
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"src/support/ibm/wcsnrtombs.cpp",
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"src/support/ibm/xlocale_zos.cpp",
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"src/support/win32/locale_win32.cpp",
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"src/support/win32/support.cpp",
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"src/system_error.cpp",
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"src/typeinfo.cpp",
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"src/valarray.cpp",
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"src/variant.cpp",
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"src/vector.cpp",
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"src/verbose_abort.cpp",
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};
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const libcxx_thread_files = [_][]const u8{
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"src/atomic.cpp",
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"src/barrier.cpp",
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"src/condition_variable.cpp",
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"src/condition_variable_destructor.cpp",
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"src/future.cpp",
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"src/mutex.cpp",
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"src/mutex_destructor.cpp",
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"src/shared_mutex.cpp",
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"src/support/win32/thread_win32.cpp",
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"src/thread.cpp",
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};
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pub const BuildError = error{
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OutOfMemory,
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AlreadyReported,
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ZigCompilerNotBuiltWithLLVMExtensions,
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};
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pub fn buildLibCxx(comp: *Compilation, prog_node: std.Progress.Node) BuildError!void {
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if (!build_options.have_llvm) {
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return error.ZigCompilerNotBuiltWithLLVMExtensions;
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}
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const tracy = trace(@src());
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defer tracy.end();
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var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
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defer arena_allocator.deinit();
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const arena = arena_allocator.allocator();
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const root_name = "c++";
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const output_mode = .Lib;
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const link_mode = .static;
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const target = &comp.root_mod.resolved_target.result;
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const cxxabi_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxxabi", "include" });
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const cxx_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", "include" });
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const cxx_src_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", "src" });
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const cxx_libc_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", "libc" });
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const optimize_mode = comp.compilerRtOptMode();
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const strip = comp.compilerRtStrip();
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const config = Compilation.Config.resolve(.{
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.output_mode = output_mode,
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.link_mode = link_mode,
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.resolved_target = comp.root_mod.resolved_target,
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.is_test = false,
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.have_zcu = false,
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.emit_bin = true,
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.root_optimize_mode = optimize_mode,
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.root_strip = strip,
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.link_libc = true,
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.lto = comp.config.lto,
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.any_sanitize_thread = comp.config.any_sanitize_thread,
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}) catch |err| {
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comp.lockAndSetMiscFailure(
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.libcxx,
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"unable to build libc++: resolving configuration failed: {s}",
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.{@errorName(err)},
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);
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return error.AlreadyReported;
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};
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const root_mod = Module.create(arena, .{
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.paths = .{
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.root = .zig_lib_root,
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.root_src_path = "",
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},
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.fully_qualified_name = "root",
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.inherited = .{
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.resolved_target = comp.root_mod.resolved_target,
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.strip = strip,
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.stack_check = false,
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.stack_protector = 0,
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.sanitize_c = .off,
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.sanitize_thread = comp.config.any_sanitize_thread,
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.red_zone = comp.root_mod.red_zone,
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.omit_frame_pointer = comp.root_mod.omit_frame_pointer,
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.valgrind = false,
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.optimize_mode = optimize_mode,
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.structured_cfg = comp.root_mod.structured_cfg,
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.pic = if (target_util.supports_fpic(target)) true else null,
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.code_model = comp.root_mod.code_model,
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},
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.global = config,
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.cc_argv = &.{},
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.parent = null,
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}) catch |err| {
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comp.lockAndSetMiscFailure(
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.libcxx,
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"unable to build libc++: creating module failed: {s}",
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.{@errorName(err)},
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);
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return error.AlreadyReported;
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};
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const libcxx_files = if (comp.config.any_non_single_threaded)
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&(libcxx_base_files ++ libcxx_thread_files)
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else
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&libcxx_base_files;
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var c_source_files = try std.array_list.Managed(Compilation.CSourceFile).initCapacity(arena, libcxx_files.len);
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for (libcxx_files) |cxx_src| {
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// These don't compile on WASI due to e.g. `fchmod` usage.
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if (std.mem.startsWith(u8, cxx_src, "src/filesystem/") and target.os.tag == .wasi)
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continue;
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if (std.mem.startsWith(u8, cxx_src, "src/support/win32/") and target.os.tag != .windows)
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continue;
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if (std.mem.startsWith(u8, cxx_src, "src/support/ibm/") and target.os.tag != .zos)
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continue;
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var cflags = std.array_list.Managed([]const u8).init(arena);
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try addCxxArgs(comp, arena, &cflags);
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try cflags.append("-DNDEBUG");
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try cflags.append("-DLIBC_NAMESPACE=__llvm_libc_common_utils");
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try cflags.append("-D_LIBCPP_BUILDING_LIBRARY");
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try cflags.append("-DLIBCXX_BUILDING_LIBCXXABI");
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try cflags.append("-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER");
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if (target.os.tag == .wasi) {
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try cflags.append("-fno-exceptions");
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}
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try cflags.append("-fvisibility=hidden");
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try cflags.append("-fvisibility-inlines-hidden");
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if (target.os.tag == .zos) {
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try cflags.append("-fno-aligned-allocation");
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} else {
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try cflags.append("-faligned-allocation");
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}
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try cflags.append("-nostdinc++");
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try cflags.append("-std=c++23");
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try cflags.append("-Wno-user-defined-literals");
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try cflags.append("-Wno-covered-switch-default");
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try cflags.append("-Wno-suggest-override");
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// These depend on only the zig lib directory file path, which is
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// purposefully either in the cache or not in the cache. The decision
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// should not be overridden here.
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var cache_exempt_flags = std.array_list.Managed([]const u8).init(arena);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxx_include_path);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxxabi_include_path);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxx_src_include_path);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxx_libc_include_path);
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c_source_files.appendAssumeCapacity(.{
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.src_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", cxx_src }),
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.extra_flags = cflags.items,
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.cache_exempt_flags = cache_exempt_flags.items,
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.owner = root_mod,
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});
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}
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const misc_task: Compilation.MiscTask = .libcxx;
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var sub_create_diag: Compilation.CreateDiagnostic = undefined;
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const sub_compilation = Compilation.create(comp.gpa, arena, &sub_create_diag, .{
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.dirs = comp.dirs.withoutLocalCache(),
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.self_exe_path = comp.self_exe_path,
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.cache_mode = .whole,
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.config = config,
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.root_mod = root_mod,
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.root_name = root_name,
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.thread_pool = comp.thread_pool,
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.libc_installation = comp.libc_installation,
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.emit_bin = .yes_cache,
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.c_source_files = c_source_files.items,
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.verbose_cc = comp.verbose_cc,
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.verbose_link = comp.verbose_link,
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.verbose_air = comp.verbose_air,
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.verbose_llvm_ir = comp.verbose_llvm_ir,
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.verbose_llvm_bc = comp.verbose_llvm_bc,
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.verbose_cimport = comp.verbose_cimport,
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.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
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.clang_passthrough_mode = comp.clang_passthrough_mode,
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.skip_linker_dependencies = true,
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}) catch |err| {
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switch (err) {
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else => comp.lockAndSetMiscFailure(misc_task, "unable to build libc++: create compilation failed: {t}", .{err}),
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error.CreateFail => comp.lockAndSetMiscFailure(misc_task, "unable to build libc++: create compilation failed: {f}", .{sub_create_diag}),
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}
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return error.AlreadyReported;
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};
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defer sub_compilation.destroy();
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comp.updateSubCompilation(sub_compilation, misc_task, prog_node) catch |err| switch (err) {
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error.AlreadyReported => return error.AlreadyReported,
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else => |e| {
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comp.lockAndSetMiscFailure(misc_task, "unable to build libc++: compilation failed: {t}", .{e});
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return error.AlreadyReported;
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},
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};
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assert(comp.libcxx_static_lib == null);
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const crt_file = try sub_compilation.toCrtFile();
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comp.libcxx_static_lib = crt_file;
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comp.queuePrelinkTaskMode(crt_file.full_object_path, &config);
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}
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pub fn buildLibCxxAbi(comp: *Compilation, prog_node: std.Progress.Node) BuildError!void {
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if (!build_options.have_llvm) {
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return error.ZigCompilerNotBuiltWithLLVMExtensions;
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}
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const tracy = trace(@src());
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defer tracy.end();
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var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
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defer arena_allocator.deinit();
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const arena = arena_allocator.allocator();
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const root_name = "c++abi";
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const output_mode = .Lib;
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const link_mode = .static;
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const target = &comp.root_mod.resolved_target.result;
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const cxxabi_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxxabi", "include" });
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const cxx_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", "include" });
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const cxx_src_include_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxx", "src" });
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const optimize_mode = comp.compilerRtOptMode();
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const strip = comp.compilerRtStrip();
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// See the `-fno-exceptions` logic for WASI.
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// The old 32-bit x86 variant of SEH doesn't use tables.
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const unwind_tables: std.builtin.UnwindTables =
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if (target.os.tag == .wasi or (target.cpu.arch == .x86 and target.os.tag == .windows)) .none else .async;
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const config = Compilation.Config.resolve(.{
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.output_mode = output_mode,
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.link_mode = link_mode,
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.resolved_target = comp.root_mod.resolved_target,
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.is_test = false,
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.have_zcu = false,
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.emit_bin = true,
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.root_optimize_mode = optimize_mode,
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.root_strip = strip,
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.link_libc = true,
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.any_unwind_tables = unwind_tables != .none,
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.lto = comp.config.lto,
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.any_sanitize_thread = comp.config.any_sanitize_thread,
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}) catch |err| {
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comp.lockAndSetMiscFailure(
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.libcxxabi,
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"unable to build libc++abi: resolving configuration failed: {s}",
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.{@errorName(err)},
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);
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return error.AlreadyReported;
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};
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const root_mod = Module.create(arena, .{
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.paths = .{
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.root = .zig_lib_root,
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.root_src_path = "",
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},
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.fully_qualified_name = "root",
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.inherited = .{
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.resolved_target = comp.root_mod.resolved_target,
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.strip = strip,
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.stack_check = false,
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.stack_protector = 0,
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.sanitize_c = .off,
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.sanitize_thread = comp.config.any_sanitize_thread,
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.red_zone = comp.root_mod.red_zone,
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.omit_frame_pointer = comp.root_mod.omit_frame_pointer,
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.valgrind = false,
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.optimize_mode = optimize_mode,
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.structured_cfg = comp.root_mod.structured_cfg,
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.unwind_tables = unwind_tables,
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.pic = if (target_util.supports_fpic(target)) true else null,
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.code_model = comp.root_mod.code_model,
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},
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.global = config,
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.cc_argv = &.{},
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.parent = null,
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}) catch |err| {
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comp.lockAndSetMiscFailure(
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.libcxxabi,
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"unable to build libc++abi: creating module failed: {s}",
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.{@errorName(err)},
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);
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return error.AlreadyReported;
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};
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var c_source_files = try std.array_list.Managed(Compilation.CSourceFile).initCapacity(arena, libcxxabi_files.len);
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for (libcxxabi_files) |cxxabi_src| {
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if (!comp.config.any_non_single_threaded and std.mem.eql(u8, cxxabi_src, "src/cxa_thread_atexit.cpp"))
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continue;
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if (target.os.tag == .wasi and
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(std.mem.eql(u8, cxxabi_src, "src/cxa_exception.cpp") or std.mem.eql(u8, cxxabi_src, "src/cxa_personality.cpp")))
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continue;
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if (target.os.tag != .wasi and std.mem.eql(u8, cxxabi_src, "src/cxa_noexception.cpp"))
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continue;
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var cflags = std.array_list.Managed([]const u8).init(arena);
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try addCxxArgs(comp, arena, &cflags);
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try cflags.append("-DNDEBUG");
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try cflags.append("-D_LIBCPP_BUILDING_LIBRARY");
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try cflags.append("-D_LIBCXXABI_BUILDING_LIBRARY");
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if (!comp.config.any_non_single_threaded) {
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try cflags.append("-D_LIBCXXABI_HAS_NO_THREADS");
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}
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if (target.abi.isGnu()) {
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if (target.os.tag != .linux or !(target.os.versionRange().gnuLibCVersion().?.order(.{ .major = 2, .minor = 18, .patch = 0 }) == .lt))
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try cflags.append("-DHAVE___CXA_THREAD_ATEXIT_IMPL");
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}
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if (target.os.tag == .wasi) {
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try cflags.append("-fno-exceptions");
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}
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try cflags.append("-fvisibility=hidden");
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try cflags.append("-fvisibility-inlines-hidden");
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try cflags.append("-nostdinc++");
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try cflags.append("-fstrict-aliasing");
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try cflags.append("-std=c++23");
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try cflags.append("-Wno-user-defined-literals");
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try cflags.append("-Wno-covered-switch-default");
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try cflags.append("-Wno-suggest-override");
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// These depend on only the zig lib directory file path, which is
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|
// purposefully either in the cache or not in the cache. The decision
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|
// should not be overridden here.
|
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var cache_exempt_flags = std.array_list.Managed([]const u8).init(arena);
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|
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxxabi_include_path);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxx_include_path);
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try cache_exempt_flags.append("-I");
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try cache_exempt_flags.append(cxx_src_include_path);
|
|
|
|
c_source_files.appendAssumeCapacity(.{
|
|
.src_path = try comp.dirs.zig_lib.join(arena, &.{ "libcxxabi", cxxabi_src }),
|
|
.extra_flags = cflags.items,
|
|
.cache_exempt_flags = cache_exempt_flags.items,
|
|
.owner = root_mod,
|
|
});
|
|
}
|
|
|
|
const misc_task: Compilation.MiscTask = .libcxxabi;
|
|
|
|
var sub_create_diag: Compilation.CreateDiagnostic = undefined;
|
|
const sub_compilation = Compilation.create(comp.gpa, arena, &sub_create_diag, .{
|
|
.dirs = comp.dirs.withoutLocalCache(),
|
|
.self_exe_path = comp.self_exe_path,
|
|
.cache_mode = .whole,
|
|
.config = config,
|
|
.root_mod = root_mod,
|
|
.root_name = root_name,
|
|
.thread_pool = comp.thread_pool,
|
|
.libc_installation = comp.libc_installation,
|
|
.emit_bin = .yes_cache,
|
|
.c_source_files = c_source_files.items,
|
|
.verbose_cc = comp.verbose_cc,
|
|
.verbose_link = comp.verbose_link,
|
|
.verbose_air = comp.verbose_air,
|
|
.verbose_llvm_ir = comp.verbose_llvm_ir,
|
|
.verbose_llvm_bc = comp.verbose_llvm_bc,
|
|
.verbose_cimport = comp.verbose_cimport,
|
|
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
|
|
.clang_passthrough_mode = comp.clang_passthrough_mode,
|
|
.skip_linker_dependencies = true,
|
|
}) catch |err| {
|
|
switch (err) {
|
|
else => comp.lockAndSetMiscFailure(misc_task, "unable to build libc++abi: create compilation failed: {t}", .{err}),
|
|
error.CreateFail => comp.lockAndSetMiscFailure(misc_task, "unable to build libc++abi: create compilation failed: {f}", .{sub_create_diag}),
|
|
}
|
|
return error.AlreadyReported;
|
|
};
|
|
defer sub_compilation.destroy();
|
|
|
|
comp.updateSubCompilation(sub_compilation, misc_task, prog_node) catch |err| switch (err) {
|
|
error.AlreadyReported => return error.AlreadyReported,
|
|
else => |e| {
|
|
comp.lockAndSetMiscFailure(
|
|
.libcxxabi,
|
|
"unable to build libc++abi: compilation failed: {s}",
|
|
.{@errorName(e)},
|
|
);
|
|
return error.AlreadyReported;
|
|
},
|
|
};
|
|
|
|
assert(comp.libcxxabi_static_lib == null);
|
|
const crt_file = try sub_compilation.toCrtFile();
|
|
comp.libcxxabi_static_lib = crt_file;
|
|
comp.queuePrelinkTaskMode(crt_file.full_object_path, &config);
|
|
}
|
|
|
|
pub fn addCxxArgs(
|
|
comp: *const Compilation,
|
|
arena: std.mem.Allocator,
|
|
cflags: *std.array_list.Managed([]const u8),
|
|
) error{OutOfMemory}!void {
|
|
const target = comp.getTarget();
|
|
const optimize_mode = comp.compilerRtOptMode();
|
|
|
|
const abi_version: u2 = if (target.os.tag == .emscripten) 2 else 1;
|
|
try cflags.append(try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_VERSION={d}", .{
|
|
abi_version,
|
|
}));
|
|
try cflags.append(try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_NAMESPACE=__{d}", .{
|
|
abi_version,
|
|
}));
|
|
try cflags.append(try std.fmt.allocPrint(arena, "-D_LIBCPP_HAS_THREADS={d}", .{
|
|
@as(u1, if (comp.config.any_non_single_threaded) 1 else 0),
|
|
}));
|
|
try cflags.append("-D_LIBCPP_HAS_MONOTONIC_CLOCK");
|
|
try cflags.append("-D_LIBCPP_HAS_TERMINAL");
|
|
try cflags.append(try std.fmt.allocPrint(arena, "-D_LIBCPP_HAS_MUSL_LIBC={d}", .{
|
|
@as(u1, if (target.abi.isMusl()) 1 else 0),
|
|
}));
|
|
try cflags.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
|
|
try cflags.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
|
|
try cflags.append("-D_LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS=0");
|
|
try cflags.append(try std.fmt.allocPrint(arena, "-D_LIBCPP_HAS_FILESYSTEM={d}", .{
|
|
@as(u1, if (target.os.tag == .wasi) 0 else 1),
|
|
}));
|
|
try cflags.append("-D_LIBCPP_HAS_RANDOM_DEVICE");
|
|
try cflags.append("-D_LIBCPP_HAS_LOCALIZATION");
|
|
try cflags.append("-D_LIBCPP_HAS_UNICODE");
|
|
try cflags.append("-D_LIBCPP_HAS_WIDE_CHARACTERS");
|
|
try cflags.append("-D_LIBCPP_HAS_NO_STD_MODULES");
|
|
if (target.os.tag == .linux) {
|
|
try cflags.append("-D_LIBCPP_HAS_TIME_ZONE_DATABASE");
|
|
}
|
|
// See libcxx/include/__algorithm/pstl_backends/cpu_backends/backend.h
|
|
// for potentially enabling some fancy features here, which would
|
|
// require corresponding changes in libcxx.zig, as well as
|
|
// Compilation.addCCArgs. This option makes it use serial backend which
|
|
// is simple and works everywhere.
|
|
try cflags.append("-D_LIBCPP_PSTL_BACKEND_SERIAL");
|
|
try cflags.append(switch (optimize_mode) {
|
|
.Debug => "-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_DEBUG",
|
|
.ReleaseFast, .ReleaseSmall => "-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_NONE",
|
|
.ReleaseSafe => "-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST",
|
|
});
|
|
if (target.isGnuLibC()) {
|
|
// glibc 2.16 introduced aligned_alloc
|
|
if (target.os.versionRange().gnuLibCVersion().?.order(.{ .major = 2, .minor = 16, .patch = 0 }) == .lt) {
|
|
try cflags.append("-D_LIBCPP_HAS_LIBRARY_ALIGNED_ALLOCATION=0");
|
|
}
|
|
}
|
|
try cflags.append("-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS");
|
|
}
|