6ab9268a90
Previously Zig would need to recompile runtime libs if you changed the values of --strip or -O. Now, unless the `debug_compiler_runtime_libs` flag is set (which is currently not exposed to the CLI), Zig will always choose ReleaseFast or ReleaseSmall for compiler runtime libraries. When the main application chooses ReleaseFast or ReleaseSmall, that value is propagated to compiler runtime libraries. Otherwise a decision is made based on the target, which is currently ReleaseSmall for freestanding WebAssembly and ReleaseFast for everything else. Ultimately the purpose of this commit is to have Debug and ReleaseSafe builds of applications still get optimized builds of, e.g. libcxx and libunwind, as well as to spend less time unnecessarily rebuilding compiler runtime libraries.
322 lines
11 KiB
Zig
322 lines
11 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 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/debug.cpp",
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"src/exception.cpp",
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"src/experimental/memory_resource.cpp",
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"src/filesystem/directory_iterator.cpp",
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"src/filesystem/int128_builtins.cpp",
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"src/filesystem/operations.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/iostream.cpp",
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"src/locale.cpp",
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"src/memory.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/optional.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/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/solaris/xlocale.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/utility.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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};
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pub fn buildLibCXX(comp: *Compilation) !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.getTarget();
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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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var c_source_files = std.ArrayList(Compilation.CSourceFile).init(arena);
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try c_source_files.ensureCapacity(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) {
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// Filesystem stuff isn't supported on Windows.
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if (std.mem.startsWith(u8, cxx_src, "src/filesystem/"))
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continue;
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} else {
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if (std.mem.startsWith(u8, cxx_src, "src/support/win32/"))
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continue;
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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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if (target.abi.isMusl()) {
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try cflags.append("-D_LIBCPP_HAS_MUSL_LIBC");
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}
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try cflags.append("-I");
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try cflags.append(cxx_include_path);
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try cflags.append("-I");
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try cflags.append(cxxabi_include_path);
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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("-fvisibility-inlines-hidden");
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try cflags.append("-std=c++14");
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try cflags.append("-Wno-user-defined-literals");
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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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});
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}
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const sub_compilation = try Compilation.create(comp.gpa, .{
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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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.target = target,
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.root_name = root_name,
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.root_pkg = null,
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.output_mode = output_mode,
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.thread_pool = comp.thread_pool,
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.libc_installation = comp.bin_file.options.libc_installation,
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.emit_bin = emit_bin,
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.optimize_mode = comp.compilerRtOptMode(),
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.link_mode = link_mode,
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.want_sanitize_c = false,
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.want_stack_check = false,
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.want_valgrind = false,
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.want_tsan = comp.bin_file.options.tsan,
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.want_pic = comp.bin_file.options.pic,
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.want_pie = comp.bin_file.options.pie,
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.emit_h = null,
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.strip = comp.compilerRtStrip(),
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.is_native_os = comp.bin_file.options.is_native_os,
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.is_native_abi = comp.bin_file.options.is_native_abi,
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.self_exe_path = comp.self_exe_path,
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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.bin_file.options.verbose_link,
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.verbose_tokenize = comp.verbose_tokenize,
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.verbose_ast = comp.verbose_ast,
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.verbose_ir = comp.verbose_ir,
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.verbose_llvm_ir = comp.verbose_llvm_ir,
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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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.link_libc = true,
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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 sub_compilation.updateSubCompilation();
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assert(comp.libcxx_static_lib == null);
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comp.libcxx_static_lib = Compilation.CRTFile{
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.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(
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comp.gpa,
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&[_][]const u8{basename},
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),
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.lock = sub_compilation.bin_file.toOwnedLock(),
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};
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}
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pub fn buildLibCXXABI(comp: *Compilation) !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.getTarget();
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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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var c_source_files: [libcxxabi_files.len]Compilation.CSourceFile = undefined;
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for (libcxxabi_files) |cxxabi_src, i| {
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var cflags = std.ArrayList([]const u8).init(arena);
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try cflags.append("-DHAVE___CXA_THREAD_ATEXIT_IMPL");
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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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if (target.abi.isMusl()) {
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try cflags.append("-D_LIBCPP_HAS_MUSL_LIBC");
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}
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try cflags.append("-I");
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try cflags.append(cxxabi_include_path);
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try cflags.append("-I");
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try cflags.append(cxx_include_path);
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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("-fstrict-aliasing");
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try cflags.append("-funwind-tables");
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try cflags.append("-std=c++11");
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c_source_files[i] = .{
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.src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", cxxabi_src }),
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.extra_flags = cflags.items,
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};
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}
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const sub_compilation = try Compilation.create(comp.gpa, .{
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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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.target = target,
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.root_name = root_name,
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.root_pkg = null,
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.output_mode = output_mode,
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.thread_pool = comp.thread_pool,
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.libc_installation = comp.bin_file.options.libc_installation,
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.emit_bin = emit_bin,
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.optimize_mode = comp.compilerRtOptMode(),
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.link_mode = link_mode,
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.want_sanitize_c = false,
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.want_stack_check = false,
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.want_valgrind = false,
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.want_tsan = comp.bin_file.options.tsan,
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.want_pic = comp.bin_file.options.pic,
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.want_pie = comp.bin_file.options.pie,
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.emit_h = null,
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.strip = comp.compilerRtStrip(),
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.is_native_os = comp.bin_file.options.is_native_os,
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.is_native_abi = comp.bin_file.options.is_native_abi,
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.self_exe_path = comp.self_exe_path,
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.c_source_files = &c_source_files,
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.verbose_cc = comp.verbose_cc,
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.verbose_link = comp.bin_file.options.verbose_link,
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.verbose_tokenize = comp.verbose_tokenize,
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.verbose_ast = comp.verbose_ast,
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.verbose_ir = comp.verbose_ir,
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.verbose_llvm_ir = comp.verbose_llvm_ir,
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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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.link_libc = true,
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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 sub_compilation.updateSubCompilation();
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assert(comp.libcxxabi_static_lib == null);
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comp.libcxxabi_static_lib = Compilation.CRTFile{
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.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(
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comp.gpa,
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&[_][]const u8{basename},
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),
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.lock = sub_compilation.bin_file.toOwnedLock(),
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};
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}
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