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# Copyright 2017 The ANGLE Project Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
declare_args() {
build_with_chromium = false
ignore_elf32_limitations = true
use_system_xcode = ""
# If true, it assumes that //third_party/abseil-cpp is an available
# dependency for googletest.
gtest_enable_absl_printers = false
# Set to default here so that it can be set via gn args
use_cxx17 = false
}
if (host_os == "mac" && use_system_xcode == "") {
_result = exec_script("//build/mac/should_use_hermetic_xcode.py",
[ target_os ],
"value")
assert(_result != 2,
"Do not allow building targets with the default" +
"hermetic toolchain if the minimum OS version is not met.")
assert(_result != 3,
"iOS does not support building with a hermetic toolchain. " +
"Please install Xcode.")
use_system_xcode = _result != 1
}
enable_java_templates = true
# Build with fewer Android dependencies
limit_android_deps = true
# Standalone ANGLE is used in places that are extremely performance sensitive,
# such as the system graphics driver on Android. ANGLE validates arguments at
# the API boundary and assumes that all bounds, et cetera are valid elsewhere
# in internal code.
#
# Unfortunately, this means the compiler cannot optimize out the vast majority
# of hardening checks. To ensure performance remains competitive, drop the
# libc++ hardening checks, since ANGLE already makes no security guarantees in
# these situations.
if (is_win) {
# TODO(https://crbug.com/1418717): ANGLE uses Chromium's abseil-cpp directory.
# Since Abseil does not mark symbols as exported, Chromium uses an alternate
# approach to scrape the symbols that need to be exported and generates .def
# files that the ANGLE build reuses.
#
# However, these symbol names include libc++ types, and libc++ hardening
# affects ABI, so ANGLE and Chromium's libc++ hardening modes need to remain
# in sync on Windows. This is a bit of a hack but "OK" since the performance
# concerns for standalone ANGLE builds are not relevant on Windows.
enable_safe_libcxx = true
} else if (is_linux) {
# https://anglebug.com/40096878: turning off safe_libcxx breaks TSAN
enable_safe_libcxx = true
} else {
enable_safe_libcxx = false
}
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