# Copyright 2014 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")
import("//build/config/sanitizers/sanitizers.gni")
import("//build/toolchain/toolchain.gni")

# Contains the dependencies needed for sanitizers to link into executables and
# shared_libraries. Unconditionally depend upon this target as it is empty if
# |is_asan|, |is_lsan|, |is_tsan|, |is_msan| and |use_custom_libcxx| are false.
group("deps") {
  if (is_asan || is_hwasan || is_lsan || is_tsan || is_msan) {
    public_configs = [ ":sanitizer_options_link_helper" ]
    deps += [ ":options_sources" ]
  }
  if (use_custom_libcxx) {
    deps += [ "$buildtools_path/third_party/libc++:libcxx_proxy" ]
  }
}

config("sanitizer_options_link_helper") {
  ldflags = [ "-Wl,-u_sanitizer_options_link_helper" ]
  if (is_asan) {
    ldflags += [ "-fsanitize=address" ]
  }
  if (is_hwasan && is_android && current_cpu == "arm64") {
    ldflags += [ "-fsanitize=hwaddress" ]
  }
  if (is_lsan) {
    ldflags += [ "-fsanitize=leak" ]
  }
  if (is_tsan) {
    ldflags += [ "-fsanitize=thread" ]
  }
  if (is_msan) {
    ldflags += [ "-fsanitize=memory" ]
  }
}

source_set("options_sources") {
  visibility = [
    ":deps",
    "//:gn_visibility",
  ]
  sources = [ "//build/sanitizers/sanitizer_options.cc" ]

  if (is_asan) {
    sources += [ "//build/sanitizers/asan_suppressions.cc" ]
  }

  if (is_lsan) {
    sources += [ "//build/sanitizers/lsan_suppressions.cc" ]
  }

  if (is_tsan) {
    sources += [ "//build/sanitizers/tsan_suppressions.cc" ]
  }
}