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# Copyright 2020 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import("//build_overrides/pigweed.gni")
# See https://github.com/google/sanitizers
config("sanitize_address") {
cflags = [ "-fsanitize=address" ]
ldflags = cflags
}
config("sanitize_memory") {
cflags = [ "-fsanitize=memory" ]
ldflags = cflags
}
config("sanitize_undefined") {
cflags = [ "-fsanitize=undefined" ]
ldflags = cflags
}
# Locate XCode's sysroot for Clang.
config("xcode_sysroot") {
if (current_os == "mac") {
_xcode_sysroot = exec_script("$dir_pw_build/py/pw_build/exec.py",
[
"--",
"/usr/bin/xcrun",
"--show-sdk-path",
],
"trim string")
cflags = [ "--sysroot=$_xcode_sysroot" ]
ldflags = cflags
}
}
# The CIPD provided Clang/LLVM toolchain must link against the matched
# libc++ which is also from CIPD. However, by default, Clang on Mac (but
# not on Linux) will fall back to the system libc++, which is
# incompatible due to an ABI change.
#
# Pull the appropriate pathd from our Pigweed env setup.
config("no_system_libcpp") {
if (current_os == "mac") {
install_dir = getenv("PW_PIGWEED_CIPD_INSTALL_DIR")
assert(install_dir != "",
"You forgot to activate the Pigweed environment; " +
"did you source pw_env_setup/setup.sh?")
ldflags = [
# Force dropping the system libc++
"-nostdlib++",
# Use the libc++ from CIPD.
getenv("PW_PIGWEED_CIPD_INSTALL_DIR") + "/lib/libc++.a",
]
}
}
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