6cd99e6ab4
Add a rust_fuzz module which builds a libfuzzer binary that enabes asan+sancov. This relies on the libfuzzer-sys crate. Bug: 147140513 Test: Local rust_fuzz example builds, fuzzes with asan+sancov. Change-Id: I57db3b8d25869791824ccfab768d13b0bb9d42fa
66 lines
2.8 KiB
Go
66 lines
2.8 KiB
Go
// Copyright 2020 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package rust
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import (
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"strings"
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"testing"
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"android/soong/android"
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)
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func TestRustFuzz(t *testing.T) {
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ctx := testRust(t, `
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rust_library {
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name: "libtest_fuzzing",
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crate_name: "test_fuzzing",
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srcs: ["foo.rs"],
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}
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rust_fuzz {
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name: "fuzz_libtest",
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srcs: ["foo.rs"],
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rustlibs: ["libtest_fuzzing"],
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}
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`)
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// Check that appropriate dependencies are added and that the rustlib linkage is correct.
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fuzz_libtest_mod := ctx.ModuleForTests("fuzz_libtest", "android_arm64_armv8-a_fuzzer").Module().(*Module)
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if !android.InList("libclang_rt.asan-aarch64-android", fuzz_libtest_mod.Properties.AndroidMkSharedLibs) {
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t.Errorf("libclang_rt.asan-aarch64-android shared library dependency missing for rust_fuzz module.")
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}
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if !android.InList("liblibfuzzer_sys.rlib-std", fuzz_libtest_mod.Properties.AndroidMkRlibs) {
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t.Errorf("liblibfuzzer_sys rlib library dependency missing for rust_fuzz module. %#v", fuzz_libtest_mod.Properties.AndroidMkRlibs)
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}
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if !android.InList("libtest_fuzzing.rlib-std", fuzz_libtest_mod.Properties.AndroidMkRlibs) {
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t.Errorf("rustlibs not linked as rlib for rust_fuzz module.")
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}
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// Check that compiler flags are set appropriately .
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fuzz_libtest := ctx.ModuleForTests("fuzz_libtest", "android_arm64_armv8-a_fuzzer").Output("fuzz_libtest")
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if !strings.Contains(fuzz_libtest.Args["rustcFlags"], "-Z sanitizer=address") ||
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!strings.Contains(fuzz_libtest.Args["rustcFlags"], "-C passes='sancov'") ||
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!strings.Contains(fuzz_libtest.Args["rustcFlags"], "--cfg fuzzing") {
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t.Errorf("rust_fuzz module does not contain the expected flags (sancov, cfg fuzzing, address sanitizer).")
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}
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// Check that dependencies have 'fuzzer' variants produced for them as well.
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libtest_fuzzer := ctx.ModuleForTests("libtest_fuzzing", "android_arm64_armv8-a_rlib_rlib-std_fuzzer").Output("libtest_fuzzing.rlib")
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if !strings.Contains(libtest_fuzzer.Args["rustcFlags"], "-Z sanitizer=address") ||
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!strings.Contains(libtest_fuzzer.Args["rustcFlags"], "-C passes='sancov'") ||
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!strings.Contains(libtest_fuzzer.Args["rustcFlags"], "--cfg fuzzing") {
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t.Errorf("rust_fuzz dependent library does not contain the expected flags (sancov, cfg fuzzing, address sanitizer).")
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}
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}
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