zig/src/libcxx.zig

360 lines
13 KiB
Zig

const std = @import("std");
const path = std.fs.path;
const assert = std.debug.assert;
const target_util = @import("target.zig");
const Compilation = @import("Compilation.zig");
const build_options = @import("build_options");
const trace = @import("tracy.zig").trace;
const libcxxabi_files = [_][]const u8{
"src/abort_message.cpp",
"src/cxa_aux_runtime.cpp",
"src/cxa_default_handlers.cpp",
"src/cxa_demangle.cpp",
"src/cxa_exception.cpp",
"src/cxa_exception_storage.cpp",
"src/cxa_guard.cpp",
"src/cxa_handlers.cpp",
"src/cxa_noexception.cpp",
"src/cxa_personality.cpp",
"src/cxa_thread_atexit.cpp",
"src/cxa_vector.cpp",
"src/cxa_virtual.cpp",
"src/fallback_malloc.cpp",
"src/private_typeinfo.cpp",
"src/stdlib_exception.cpp",
"src/stdlib_new_delete.cpp",
"src/stdlib_stdexcept.cpp",
"src/stdlib_typeinfo.cpp",
};
const libcxx_files = [_][]const u8{
"src/algorithm.cpp",
"src/any.cpp",
"src/atomic.cpp",
"src/barrier.cpp",
"src/bind.cpp",
"src/charconv.cpp",
"src/chrono.cpp",
"src/condition_variable.cpp",
"src/condition_variable_destructor.cpp",
"src/debug.cpp",
"src/exception.cpp",
"src/experimental/memory_resource.cpp",
"src/filesystem/directory_iterator.cpp",
"src/filesystem/int128_builtins.cpp",
"src/filesystem/operations.cpp",
"src/format.cpp",
"src/functional.cpp",
"src/future.cpp",
"src/hash.cpp",
"src/ios.cpp",
"src/ios.instantiations.cpp",
"src/iostream.cpp",
"src/locale.cpp",
"src/memory.cpp",
"src/mutex.cpp",
"src/mutex_destructor.cpp",
"src/new.cpp",
"src/optional.cpp",
"src/random.cpp",
"src/random_shuffle.cpp",
"src/regex.cpp",
"src/shared_mutex.cpp",
"src/stdexcept.cpp",
"src/string.cpp",
"src/strstream.cpp",
"src/support/ibm/xlocale_zos.cpp",
"src/support/solaris/xlocale.cpp",
"src/support/win32/locale_win32.cpp",
"src/support/win32/support.cpp",
"src/support/win32/thread_win32.cpp",
"src/system_error.cpp",
"src/thread.cpp",
"src/typeinfo.cpp",
"src/utility.cpp",
"src/valarray.cpp",
"src/variant.cpp",
"src/vector.cpp",
};
pub fn buildLibCXX(comp: *Compilation) !void {
if (!build_options.have_llvm) {
return error.ZigCompilerNotBuiltWithLLVMExtensions;
}
const tracy = trace(@src());
defer tracy.end();
var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
defer arena_allocator.deinit();
const arena = arena_allocator.allocator();
const root_name = "c++";
const output_mode = .Lib;
const link_mode = .Static;
const target = comp.getTarget();
const basename = try std.zig.binNameAlloc(arena, .{
.root_name = root_name,
.target = target,
.output_mode = output_mode,
.link_mode = link_mode,
});
const emit_bin = Compilation.EmitLoc{
.directory = null, // Put it in the cache directory.
.basename = basename,
};
const cxxabi_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", "include" });
const cxx_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "include" });
var c_source_files = try std.ArrayList(Compilation.CSourceFile).initCapacity(arena, libcxx_files.len);
for (libcxx_files) |cxx_src| {
var cflags = std.ArrayList([]const u8).init(arena);
if ((target.os.tag == .windows and target.abi == .msvc) or target.os.tag == .wasi) {
// Filesystem stuff isn't supported on WASI and Windows (MSVC).
if (std.mem.startsWith(u8, cxx_src, "src/filesystem/"))
continue;
}
if (std.mem.startsWith(u8, cxx_src, "src/support/win32/") and target.os.tag != .windows)
continue;
if (std.mem.startsWith(u8, cxx_src, "src/support/solaris/") and target.os.tag != .solaris)
continue;
if (std.mem.startsWith(u8, cxx_src, "src/support/ibm/") and target.os.tag != .zos)
continue;
try cflags.append("-DNDEBUG");
try cflags.append("-D_LIBCPP_BUILDING_LIBRARY");
try cflags.append("-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER");
try cflags.append("-DLIBCXX_BUILDING_LIBCXXABI");
try cflags.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
try cflags.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
try cflags.append("-D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS");
try cflags.append("-D_LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS");
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.os.tag == .wasi) {
// WASI doesn't support thread and exception yet.
try cflags.append("-D_LIBCPP_HAS_NO_THREADS");
try cflags.append("-fno-exceptions");
}
if (target.os.tag == .zos) {
try cflags.append("-fno-aligned-allocation");
} else {
try cflags.append("-faligned-allocation");
}
try cflags.append("-I");
try cflags.append(cxx_include_path);
try cflags.append("-I");
try cflags.append(cxxabi_include_path);
if (target_util.supports_fpic(target)) {
try cflags.append("-fPIC");
}
try cflags.append("-nostdinc++");
try cflags.append("-std=c++20");
try cflags.append("-Wno-user-defined-literals");
c_source_files.appendAssumeCapacity(.{
.src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", cxx_src }),
.extra_flags = cflags.items,
});
}
const sub_compilation = try Compilation.create(comp.gpa, .{
.local_cache_directory = comp.global_cache_directory,
.global_cache_directory = comp.global_cache_directory,
.zig_lib_directory = comp.zig_lib_directory,
.cache_mode = .whole,
.target = target,
.root_name = root_name,
.main_pkg = null,
.output_mode = output_mode,
.thread_pool = comp.thread_pool,
.libc_installation = comp.bin_file.options.libc_installation,
.emit_bin = emit_bin,
.optimize_mode = comp.compilerRtOptMode(),
.link_mode = link_mode,
.want_sanitize_c = false,
.want_stack_check = false,
.want_red_zone = comp.bin_file.options.red_zone,
.omit_frame_pointer = comp.bin_file.options.omit_frame_pointer,
.want_valgrind = false,
.want_tsan = comp.bin_file.options.tsan,
.want_pic = comp.bin_file.options.pic,
.want_pie = comp.bin_file.options.pie,
.want_lto = comp.bin_file.options.lto,
.function_sections = comp.bin_file.options.function_sections,
.emit_h = null,
.strip = comp.compilerRtStrip(),
.is_native_os = comp.bin_file.options.is_native_os,
.is_native_abi = comp.bin_file.options.is_native_abi,
.self_exe_path = comp.self_exe_path,
.c_source_files = c_source_files.items,
.verbose_cc = comp.verbose_cc,
.verbose_link = comp.bin_file.options.verbose_link,
.verbose_air = comp.verbose_air,
.verbose_llvm_ir = comp.verbose_llvm_ir,
.verbose_cimport = comp.verbose_cimport,
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
.clang_passthrough_mode = comp.clang_passthrough_mode,
.link_libc = true,
.skip_linker_dependencies = true,
});
defer sub_compilation.destroy();
try sub_compilation.updateSubCompilation();
assert(comp.libcxx_static_lib == null);
comp.libcxx_static_lib = Compilation.CRTFile{
.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(comp.gpa, &[_][]const u8{
sub_compilation.bin_file.options.emit.?.sub_path,
}),
.lock = sub_compilation.bin_file.toOwnedLock(),
};
}
pub fn buildLibCXXABI(comp: *Compilation) !void {
if (!build_options.have_llvm) {
return error.ZigCompilerNotBuiltWithLLVMExtensions;
}
const tracy = trace(@src());
defer tracy.end();
var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
defer arena_allocator.deinit();
const arena = arena_allocator.allocator();
const root_name = "c++abi";
const output_mode = .Lib;
const link_mode = .Static;
const target = comp.getTarget();
const basename = try std.zig.binNameAlloc(arena, .{
.root_name = root_name,
.target = target,
.output_mode = output_mode,
.link_mode = link_mode,
});
const emit_bin = Compilation.EmitLoc{
.directory = null, // Put it in the cache directory.
.basename = basename,
};
const cxxabi_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", "include" });
const cxx_include_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxx", "include" });
var c_source_files = try std.ArrayList(Compilation.CSourceFile).initCapacity(arena, libcxxabi_files.len);
for (libcxxabi_files) |cxxabi_src| {
var cflags = std.ArrayList([]const u8).init(arena);
if (target.os.tag == .wasi) {
// WASI doesn't support thread and exception yet.
if (std.mem.startsWith(u8, cxxabi_src, "src/cxa_thread_atexit.cpp") or
std.mem.startsWith(u8, cxxabi_src, "src/cxa_exception.cpp") or
std.mem.startsWith(u8, cxxabi_src, "src/cxa_personality.cpp"))
continue;
try cflags.append("-D_LIBCXXABI_HAS_NO_THREADS");
try cflags.append("-fno-exceptions");
} else {
try cflags.append("-DHAVE___CXA_THREAD_ATEXIT_IMPL");
}
try cflags.append("-D_LIBCPP_DISABLE_EXTERN_TEMPLATE");
try cflags.append("-D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS");
try cflags.append("-D_LIBCXXABI_BUILDING_LIBRARY");
try cflags.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
try cflags.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
try cflags.append("-fvisibility=hidden");
try cflags.append("-fvisibility-inlines-hidden");
if (target.abi.isMusl()) {
try cflags.append("-D_LIBCPP_HAS_MUSL_LIBC");
}
try cflags.append("-I");
try cflags.append(cxxabi_include_path);
try cflags.append("-I");
try cflags.append(cxx_include_path);
if (target_util.supports_fpic(target)) {
try cflags.append("-fPIC");
}
try cflags.append("-nostdinc++");
try cflags.append("-fstrict-aliasing");
try cflags.append("-funwind-tables");
try cflags.append("-std=c++11");
c_source_files.appendAssumeCapacity(.{
.src_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{ "libcxxabi", cxxabi_src }),
.extra_flags = cflags.items,
});
}
const sub_compilation = try Compilation.create(comp.gpa, .{
.local_cache_directory = comp.global_cache_directory,
.global_cache_directory = comp.global_cache_directory,
.zig_lib_directory = comp.zig_lib_directory,
.cache_mode = .whole,
.target = target,
.root_name = root_name,
.main_pkg = null,
.output_mode = output_mode,
.thread_pool = comp.thread_pool,
.libc_installation = comp.bin_file.options.libc_installation,
.emit_bin = emit_bin,
.optimize_mode = comp.compilerRtOptMode(),
.link_mode = link_mode,
.want_sanitize_c = false,
.want_stack_check = false,
.want_red_zone = comp.bin_file.options.red_zone,
.omit_frame_pointer = comp.bin_file.options.omit_frame_pointer,
.want_valgrind = false,
.want_tsan = comp.bin_file.options.tsan,
.want_pic = comp.bin_file.options.pic,
.want_pie = comp.bin_file.options.pie,
.want_lto = comp.bin_file.options.lto,
.function_sections = comp.bin_file.options.function_sections,
.emit_h = null,
.strip = comp.compilerRtStrip(),
.is_native_os = comp.bin_file.options.is_native_os,
.is_native_abi = comp.bin_file.options.is_native_abi,
.self_exe_path = comp.self_exe_path,
.c_source_files = c_source_files.items,
.verbose_cc = comp.verbose_cc,
.verbose_link = comp.bin_file.options.verbose_link,
.verbose_air = comp.verbose_air,
.verbose_llvm_ir = comp.verbose_llvm_ir,
.verbose_cimport = comp.verbose_cimport,
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
.clang_passthrough_mode = comp.clang_passthrough_mode,
.link_libc = true,
.skip_linker_dependencies = true,
});
defer sub_compilation.destroy();
try sub_compilation.updateSubCompilation();
assert(comp.libcxxabi_static_lib == null);
comp.libcxxabi_static_lib = Compilation.CRTFile{
.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(comp.gpa, &[_][]const u8{
sub_compilation.bin_file.options.emit.?.sub_path,
}),
.lock = sub_compilation.bin_file.toOwnedLock(),
};
}