mirror of
https://github.com/ziglang/zig.git
synced 2025-12-24 07:03:11 +00:00
510 lines
19 KiB
Zig
510 lines
19 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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pub const AbiVersion = enum(u2) {
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@"1" = 1,
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@"2" = 2,
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pub const default: AbiVersion = .@"1";
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};
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const libcxxabi_files = [_][]const u8{
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"src/abort_message.cpp",
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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.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_noexception.cpp",
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"src/cxa_personality.cpp",
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"src/cxa_thread_atexit.cpp",
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"src/cxa_vector.cpp",
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"src/cxa_virtual.cpp",
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"src/fallback_malloc.cpp",
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"src/private_typeinfo.cpp",
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"src/stdlib_exception.cpp",
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"src/stdlib_new_delete.cpp",
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"src/stdlib_stdexcept.cpp",
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"src/stdlib_typeinfo.cpp",
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};
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const libcxx_files = [_][]const u8{
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"src/algorithm.cpp",
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"src/any.cpp",
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"src/atomic.cpp",
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"src/barrier.cpp",
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"src/bind.cpp",
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"src/charconv.cpp",
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"src/chrono.cpp",
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"src/condition_variable.cpp",
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"src/condition_variable_destructor.cpp",
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"src/exception.cpp",
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"src/experimental/memory_resource.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/functional.cpp",
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"src/future.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/legacy_debug_handler.cpp",
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"src/legacy_pointer_safety.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/mutex.cpp",
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"src/mutex_destructor.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/print.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/shared_mutex.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/support/win32/thread_win32.cpp",
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"src/system_error.cpp",
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"src/thread.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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pub fn buildLibCXX(comp: *Compilation, prog_node: *std.Progress.Node) !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 basename = try std.zig.binNameAlloc(arena, .{
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.root_name = root_name,
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.target = target,
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.output_mode = output_mode,
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.link_mode = link_mode,
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});
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const emit_bin = Compilation.EmitLoc{
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.directory = null, // Put it in the cache directory.
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.basename = basename,
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};
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const cxxabi_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", "include" });
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const cxx_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "include" });
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const cxx_src_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "src" });
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const abi_version_arg = try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_VERSION={d}", .{
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@intFromEnum(comp.libcxx_abi_version),
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});
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const abi_namespace_arg = try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_NAMESPACE=__{d}", .{
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@intFromEnum(comp.libcxx_abi_version),
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});
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const optimize_mode = comp.compilerRtOptMode();
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const strip = comp.compilerRtStrip();
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const config = try 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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});
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const root_mod = try Module.create(arena, .{
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.global_cache_directory = comp.global_cache_directory,
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.paths = .{
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.root = .{ .root_dir = comp.zig_lib_directory },
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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 = false,
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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 = comp.root_mod.pic,
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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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.builtin_mod = null,
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});
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var c_source_files = try std.ArrayList(Compilation.CSourceFile).initCapacity(arena, libcxx_files.len);
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for (libcxx_files) |cxx_src| {
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var cflags = std.ArrayList([]const u8).init(arena);
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if ((target.os.tag == .windows and target.abi == .msvc) or target.os.tag == .wasi) {
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// Filesystem stuff isn't supported on WASI and Windows (MSVC).
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if (std.mem.startsWith(u8, cxx_src, "src/filesystem/"))
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continue;
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}
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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/solaris/") and !target.os.tag.isSolarish())
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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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if (!comp.config.any_non_single_threaded) {
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if (std.mem.startsWith(u8, cxx_src, "src/support/win32/thread_win32.cpp")) {
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continue;
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}
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try cflags.append("-D_LIBCPP_HAS_NO_THREADS");
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}
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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_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER");
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try cflags.append("-DLIBCXX_BUILDING_LIBCXXABI");
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try cflags.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
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try cflags.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
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try cflags.append("-D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS");
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try cflags.append("-D_LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS");
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// See libcxx/include/__algorithm/pstl_backends/cpu_backends/backend.h
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// for potentially enabling some fancy features here, which would
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// require corresponding changes in libcxx.zig, as well as
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// Compilation.addCCArgs. This option makes it use serial backend which
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// is simple and works everywhere.
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try cflags.append("-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL");
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try cflags.append(abi_version_arg);
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try cflags.append(abi_namespace_arg);
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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.abi.isMusl()) {
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try cflags.append("-D_LIBCPP_HAS_MUSL_LIBC");
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}
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if (target.isGnuLibC()) {
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// glibc 2.16 introduced aligned_alloc
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if (target.os.version_range.linux.glibc.order(.{ .major = 2, .minor = 16, .patch = 0 }) == .lt) {
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try cflags.append("-D_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION");
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}
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}
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if (target.os.tag == .wasi) {
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// WASI doesn't support exceptions yet.
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try cflags.append("-fno-exceptions");
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}
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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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if (target_util.supports_fpic(target)) {
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try cflags.append("-fPIC");
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}
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try cflags.append("-nostdinc++");
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try cflags.append("-std=c++20");
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try cflags.append("-Wno-user-defined-literals");
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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.ArrayList([]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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c_source_files.appendAssumeCapacity(.{
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.src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "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 sub_compilation = try Compilation.create(comp.gpa, arena, .{
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.local_cache_directory = comp.global_cache_directory,
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.global_cache_directory = comp.global_cache_directory,
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.zig_lib_directory = comp.zig_lib_directory,
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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 = emit_bin,
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.emit_h = null,
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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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});
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defer sub_compilation.destroy();
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try comp.updateSubCompilation(sub_compilation, .libcxx, prog_node);
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assert(comp.libcxx_static_lib == null);
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comp.libcxx_static_lib = try sub_compilation.toCrtFile();
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}
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pub fn buildLibCXXABI(comp: *Compilation, prog_node: *std.Progress.Node) !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 basename = try std.zig.binNameAlloc(arena, .{
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.root_name = root_name,
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.target = target,
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.output_mode = output_mode,
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.link_mode = link_mode,
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});
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const emit_bin = Compilation.EmitLoc{
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.directory = null, // Put it in the cache directory.
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.basename = basename,
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};
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const cxxabi_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", "include" });
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const cxx_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "include" });
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const cxx_src_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "src" });
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const abi_version_arg = try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_VERSION={d}", .{
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@intFromEnum(comp.libcxx_abi_version),
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});
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const abi_namespace_arg = try std.fmt.allocPrint(arena, "-D_LIBCPP_ABI_NAMESPACE=__{d}", .{
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@intFromEnum(comp.libcxx_abi_version),
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});
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const optimize_mode = comp.compilerRtOptMode();
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const strip = comp.compilerRtStrip();
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const unwind_tables = true;
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const config = try 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,
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.lto = comp.config.lto,
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.any_sanitize_thread = comp.config.any_sanitize_thread,
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});
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const root_mod = try Module.create(arena, .{
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.global_cache_directory = comp.global_cache_directory,
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.paths = .{
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.root = .{ .root_dir = comp.zig_lib_directory },
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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 = false,
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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 = comp.root_mod.pic,
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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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.builtin_mod = null,
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});
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var c_source_files = try std.ArrayList(Compilation.CSourceFile).initCapacity(arena, libcxxabi_files.len);
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for (libcxxabi_files) |cxxabi_src| {
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var cflags = std.ArrayList([]const u8).init(arena);
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if (target.os.tag == .wasi) {
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// WASI doesn't support exceptions yet.
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if (std.mem.startsWith(u8, cxxabi_src, "src/cxa_exception.cpp") or
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std.mem.startsWith(u8, cxxabi_src, "src/cxa_personality.cpp"))
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continue;
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try cflags.append("-fno-exceptions");
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}
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// WASM targets are single threaded.
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if (!comp.config.any_non_single_threaded) {
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if (std.mem.startsWith(u8, cxxabi_src, "src/cxa_thread_atexit.cpp")) {
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continue;
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}
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try cflags.append("-D_LIBCXXABI_HAS_NO_THREADS");
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try cflags.append("-D_LIBCPP_HAS_NO_THREADS");
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} else if (target.abi.isGnu()) {
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if (target.os.tag != .linux or !(target.os.version_range.linux.glibc.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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try cflags.append("-D_LIBCPP_DISABLE_EXTERN_TEMPLATE");
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try cflags.append("-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS");
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try cflags.append("-D_LIBCXXABI_BUILDING_LIBRARY");
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try cflags.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
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try cflags.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
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// This must be coordinated with the same flag in libcxx
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try cflags.append("-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL");
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try cflags.append(abi_version_arg);
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try cflags.append(abi_namespace_arg);
|
|
|
|
try cflags.append("-fvisibility=hidden");
|
|
try cflags.append("-fvisibility-inlines-hidden");
|
|
|
|
if (target.abi.isMusl()) {
|
|
try cflags.append("-D_LIBCPP_HAS_MUSL_LIBC");
|
|
}
|
|
|
|
if (target.isGnuLibC()) {
|
|
// glibc 2.16 introduced aligned_alloc
|
|
if (target.os.version_range.linux.glibc.order(.{ .major = 2, .minor = 16, .patch = 0 }) == .lt) {
|
|
try cflags.append("-D_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION");
|
|
}
|
|
}
|
|
|
|
if (target_util.supports_fpic(target)) {
|
|
try cflags.append("-fPIC");
|
|
}
|
|
try cflags.append("-nostdinc++");
|
|
try cflags.append("-fstrict-aliasing");
|
|
try cflags.append("-std=c++20");
|
|
|
|
// These depend on only the zig lib directory file path, which is
|
|
// purposefully either in the cache or not in the cache. The decision
|
|
// should not be overridden here.
|
|
var cache_exempt_flags = std.ArrayList([]const u8).init(arena);
|
|
|
|
try cache_exempt_flags.append("-I");
|
|
try cache_exempt_flags.append(cxxabi_include_path);
|
|
|
|
try cache_exempt_flags.append("-I");
|
|
try cache_exempt_flags.append(cxx_include_path);
|
|
|
|
try cache_exempt_flags.append("-I");
|
|
try cache_exempt_flags.append(cxx_src_include_path);
|
|
|
|
c_source_files.appendAssumeCapacity(.{
|
|
.src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", cxxabi_src }),
|
|
.extra_flags = cflags.items,
|
|
.cache_exempt_flags = cache_exempt_flags.items,
|
|
.owner = root_mod,
|
|
});
|
|
}
|
|
|
|
const sub_compilation = try Compilation.create(comp.gpa, arena, .{
|
|
.local_cache_directory = comp.global_cache_directory,
|
|
.global_cache_directory = comp.global_cache_directory,
|
|
.zig_lib_directory = comp.zig_lib_directory,
|
|
.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 = emit_bin,
|
|
.emit_h = null,
|
|
.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,
|
|
});
|
|
defer sub_compilation.destroy();
|
|
|
|
try comp.updateSubCompilation(sub_compilation, .libcxxabi, prog_node);
|
|
|
|
assert(comp.libcxxabi_static_lib == null);
|
|
comp.libcxxabi_static_lib = try sub_compilation.toCrtFile();
|
|
}
|