1# Copyright (C) 2017 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15declare_args() {
16  # Address Sanitizer: memory bugs (e.g., UAF).
17  is_asan = false
18
19  # Leak Sanitizer: memory leaks.
20  is_lsan = false
21
22  # Memory Sanitizer: uninitialized reads.
23  is_msan = false
24
25  # Thread Sanitizer: threading bugs.
26  is_tsan = false
27
28  # Undefined Behaviour Sanitizer.
29  is_ubsan = false
30
31  # Compile for fuzzing.
32  is_fuzzer = false
33
34  # When enabled, only relevant sanitizer defines are set, but compilation
35  # happens with no extra flags. This is useful when in component build
36  # enabling sanitizers only in some of the components.
37  use_sanitizer_configs_without_instrumentation = false
38}
39
40declare_args() {
41  # Link in LLVM LibFuzzer.
42  use_libfuzzer = is_fuzzer
43
44  # If is_fuzzer=true and use_libfuzzer=false, add this flag to ldflags when
45  # linking fuzzer executables.
46  link_fuzzer = ""
47}
48
49declare_args() {
50  using_sanitizer =
51      is_asan || is_lsan || is_tsan || is_msan || is_ubsan || use_libfuzzer
52}
53
54assert(!using_sanitizer || is_clang || is_system_compiler,
55       "is_*san requires is_clang=true'")
56assert(!is_msan || is_linux, "msan only supported on linux")
57assert(!is_tsan || (is_linux || is_mac), "tsan only supported on linux and mac")
58assert(!is_fuzzer || use_libfuzzer || link_fuzzer != "")
59