# Copyright 2015 The Chromium Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. import("//build/config/c++/c++.gni") source_set("libc++abi") { if (export_libcxxabi_from_executables) { visibility = [ "//build/config:executable_deps" ] } else { visibility = [ "//buildtools/third_party/libc++" ] } # Fuchsia builds don't link against any libraries that provide stack # unwinding symbols, unlike Linux does with glibc (same applies for Android). # Build and link against libunwind manually to get this functionality. if (is_fuchsia || is_android) { deps = [ "//buildtools/third_party/libunwind" ] } sources = [ "trunk/src/abort_message.cpp", "trunk/src/cxa_aux_runtime.cpp", "trunk/src/cxa_default_handlers.cpp", "trunk/src/cxa_exception.cpp", "trunk/src/cxa_exception_storage.cpp", "trunk/src/cxa_handlers.cpp", # This file is supposed to be used in fno-exception builds of # libc++abi. We build lib++/libc++abi with exceptions enabled. #"trunk/src/cxa_noexception.cpp", "trunk/src/cxa_personality.cpp", "trunk/src/cxa_vector.cpp", "trunk/src/cxa_virtual.cpp", "trunk/src/fallback_malloc.cpp", "trunk/src/private_typeinfo.cpp", "trunk/src/stdlib_exception.cpp", "trunk/src/stdlib_stdexcept.cpp", "trunk/src/stdlib_typeinfo.cpp", ] if (!is_tsan) { sources += [ "trunk/src/cxa_guard.cpp" ] } # See the comment in cxa_demangle_stub.cc for why we don't use LLVM's # demangler on android. # TODO(thakis): Switch to building with LIBCXXABI_NON_DEMANGLING_TERMINATE # defined instead. if (is_android) { sources += [ "cxa_demangle_stub.cc" ] } else { sources += [ "trunk/src/cxa_demangle.cpp" ] } if (is_fuchsia || (is_posix && !is_apple)) { sources += [ "trunk/src/cxa_thread_atexit.cpp" ] } defines = [ "LIBCXXABI_SILENT_TERMINATE", # TODO(crbug.com/1298070) _LIBCPP_CONSTINIT is defined in a libc++ revision # more recent than the one currently used in Chromium. "_LIBCPP_CONSTINIT=constinit", ] configs -= [ "//build/config/compiler:chromium_code", "//build/config/compiler:no_exceptions", "//build/config/compiler:no_rtti", "//build/config/coverage:default_coverage", ] configs += [ "//build/config/compiler:no_chromium_code", "//build/config/compiler:exceptions", "//build/config/compiler:rtti", "//buildtools/third_party/libc++:config", ] # private_typeinfo.cpp implements __dynamic_cast(), which is the runtime # bit that implements dynamic_cast<>(). But ubsan's vptr check inserts # dynamic_cast<>()s, which leads to infinite recursion. So make sure we don't # pass -fsanitize=vptr. configs -= [ "//build/config/sanitizers:default_sanitizer_flags" ] configs += [ "//build/config/sanitizers:default_sanitizer_flags_but_ubsan_vptr" ] if (export_libcxxabi_from_executables || libcxx_is_shared) { configs -= [ "//build/config/gcc:symbol_visibility_hidden" ] configs += [ "//build/config/gcc:symbol_visibility_default" ] } # libc++abi depends on libc++ internals. include_dirs = [ "../libc++/trunk/src" ] }