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105 lines
3.4 KiB
Plaintext
105 lines
3.4 KiB
Plaintext
# Copyright 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import("//build/config/c++/c++.gni")
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import("//build/config/sanitizers/sanitizers.gni")
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import("//build/toolchain/toolchain.gni")
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# Used by libc++ and libc++abi.
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config("config") {
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defines = [ "LIBCXX_BUILDING_LIBCXXABI" ]
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if (libcpp_is_static) {
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defines += [
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# This resets the visibility to default only for the various
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# flavors of operator new and operator delete. These symbols
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# are weak and get overriden by Chromium-provided ones, but if
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# these symbols had hidden visibility, this would make the
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# Chromium symbols hidden too because elf visibility rules
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# require that linkers use the least visible form when merging,
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# and if this is hidden, then when we merge it with tcmalloc's
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# operator new, hidden visibility would win. However, tcmalloc
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# needs a visible operator new to also override operator new
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# references from system libraries.
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# TODO(lld): Ask lld for a --force-public-visibility flag or
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# similar to that overrides the default elf merging rules, and
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# make tcmalloc's gn config pass that to all its dependencies,
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# then remove this override here.
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"_LIBCPP_OVERRIDABLE_FUNC_VIS=__attribute__((__visibility__(\"default\")))",
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]
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}
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cflags = [
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"-fPIC",
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"-fstrict-aliasing",
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]
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}
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if (libcpp_is_static) {
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link_target_type = "source_set"
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} else {
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link_target_type = "shared_library"
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}
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target(link_target_type, "libc++") {
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sources = [
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"trunk/src/algorithm.cpp",
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"trunk/src/any.cpp",
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"trunk/src/bind.cpp",
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"trunk/src/chrono.cpp",
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"trunk/src/condition_variable.cpp",
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"trunk/src/debug.cpp",
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"trunk/src/exception.cpp",
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"trunk/src/functional.cpp",
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"trunk/src/future.cpp",
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"trunk/src/hash.cpp",
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"trunk/src/ios.cpp",
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"trunk/src/iostream.cpp",
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"trunk/src/locale.cpp",
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"trunk/src/memory.cpp",
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"trunk/src/mutex.cpp",
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"trunk/src/new.cpp",
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"trunk/src/optional.cpp",
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"trunk/src/random.cpp",
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"trunk/src/regex.cpp",
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"trunk/src/shared_mutex.cpp",
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"trunk/src/stdexcept.cpp",
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"trunk/src/string.cpp",
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"trunk/src/strstream.cpp",
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"trunk/src/system_error.cpp",
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"trunk/src/thread.cpp",
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"trunk/src/typeinfo.cpp",
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"trunk/src/utility.cpp",
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"trunk/src/valarray.cpp",
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"trunk/src/variant.cpp",
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"trunk/src/vector.cpp",
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]
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configs -= [
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"//build/config/compiler:chromium_code",
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"//build/config/compiler:no_exceptions",
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"//build/config/compiler:no_rtti",
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"//build/config/coverage:default_coverage",
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]
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if (is_android && !libcpp_is_static) {
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configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
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}
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configs += [
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":config",
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"//build/config/compiler:no_chromium_code",
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"//build/config/compiler:exceptions",
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"//build/config/compiler:rtti",
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"//build/config/sanitizers:sanitizer_options_link_helper",
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]
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defines = [ "_LIBCPP_BUILDING_LIBRARY" ]
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if (!is_clang && !libcpp_is_static) {
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# This is a temporary workaround to get libc++ builds working with
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# gcc. It can be removed with either
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# https://reviews.llvm.org/D35326 or
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# https://reviews.llvm.org/D35388 lands.
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defines += [ "_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS=__attribute__((__visibility__(\"default\")))" ]
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}
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deps = [
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"//buildtools/third_party/libc++abi",
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]
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}
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