rust: Switch rust_fuzz to HWASan
Bug: 180495975
Test: example_rust_fuzzer
Change-Id: I26e6f15136ee2d5f4ed1167be5c1c6a14b19421a
diff --git a/rust/fuzz.go b/rust/fuzz.go
index 6b0a943..d699971 100644
--- a/rust/fuzz.go
+++ b/rust/fuzz.go
@@ -73,9 +73,6 @@
if libFuzzerRuntimeLibrary := config.LibFuzzerRuntimeLibrary(ctx.toolchain()); libFuzzerRuntimeLibrary != "" {
deps.StaticLibs = append(deps.StaticLibs, libFuzzerRuntimeLibrary)
}
- if libclangRuntimeLibrary := config.LibclangRuntimeLibrary(ctx.toolchain(), "asan"); libclangRuntimeLibrary != "" {
- deps.SharedLibs = append(deps.SharedLibs, libclangRuntimeLibrary)
- }
deps.SharedLibs = append(deps.SharedLibs, "libc++")
deps.Rlibs = append(deps.Rlibs, "liblibfuzzer_sys")
diff --git a/rust/fuzz_test.go b/rust/fuzz_test.go
index f93ccc7..2524f91 100644
--- a/rust/fuzz_test.go
+++ b/rust/fuzz_test.go
@@ -37,9 +37,6 @@
// Check that appropriate dependencies are added and that the rustlib linkage is correct.
fuzz_libtest_mod := ctx.ModuleForTests("fuzz_libtest", "android_arm64_armv8-a_fuzzer").Module().(*Module)
- if !android.InList("libclang_rt.asan-aarch64-android", fuzz_libtest_mod.Properties.AndroidMkSharedLibs) {
- t.Errorf("libclang_rt.asan-aarch64-android shared library dependency missing for rust_fuzz module.")
- }
if !android.InList("liblibfuzzer_sys.rlib-std", fuzz_libtest_mod.Properties.AndroidMkRlibs) {
t.Errorf("liblibfuzzer_sys rlib library dependency missing for rust_fuzz module. %#v", fuzz_libtest_mod.Properties.AndroidMkRlibs)
}
@@ -49,18 +46,18 @@
// Check that compiler flags are set appropriately .
fuzz_libtest := ctx.ModuleForTests("fuzz_libtest", "android_arm64_armv8-a_fuzzer").Output("fuzz_libtest")
- if !strings.Contains(fuzz_libtest.Args["rustcFlags"], "-Z sanitizer=address") ||
+ if !strings.Contains(fuzz_libtest.Args["rustcFlags"], "-Z sanitizer=hwaddress") ||
!strings.Contains(fuzz_libtest.Args["rustcFlags"], "-C passes='sancov'") ||
!strings.Contains(fuzz_libtest.Args["rustcFlags"], "--cfg fuzzing") {
- t.Errorf("rust_fuzz module does not contain the expected flags (sancov, cfg fuzzing, address sanitizer).")
+ t.Errorf("rust_fuzz module does not contain the expected flags (sancov, cfg fuzzing, hwaddress sanitizer).")
}
// Check that dependencies have 'fuzzer' variants produced for them as well.
libtest_fuzzer := ctx.ModuleForTests("libtest_fuzzing", "android_arm64_armv8-a_rlib_rlib-std_fuzzer").Output("libtest_fuzzing.rlib")
- if !strings.Contains(libtest_fuzzer.Args["rustcFlags"], "-Z sanitizer=address") ||
+ if !strings.Contains(libtest_fuzzer.Args["rustcFlags"], "-Z sanitizer=hwaddress") ||
!strings.Contains(libtest_fuzzer.Args["rustcFlags"], "-C passes='sancov'") ||
!strings.Contains(libtest_fuzzer.Args["rustcFlags"], "--cfg fuzzing") {
- t.Errorf("rust_fuzz dependent library does not contain the expected flags (sancov, cfg fuzzing, address sanitizer).")
+ t.Errorf("rust_fuzz dependent library does not contain the expected flags (sancov, cfg fuzzing, hwaddress sanitizer).")
}
}
diff --git a/rust/sanitize.go b/rust/sanitize.go
index ae3eff0..0a53f98 100644
--- a/rust/sanitize.go
+++ b/rust/sanitize.go
@@ -46,7 +46,6 @@
"-C llvm-args=-sanitizer-coverage-inline-8bit-counters",
"-C llvm-args=-sanitizer-coverage-trace-geps",
"-C llvm-args=-sanitizer-coverage-prune-blocks=0",
- "-Z sanitizer=address",
// Sancov breaks with lto
// TODO: Remove when https://bugs.llvm.org/show_bug.cgi?id=41734 is resolved and sancov works with LTO
@@ -109,6 +108,11 @@
}
if Bool(sanitize.Properties.Sanitize.Fuzzer) {
flags.RustFlags = append(flags.RustFlags, fuzzerFlags...)
+ if ctx.Arch().ArchType == android.Arm64 {
+ flags.RustFlags = append(flags.RustFlags, hwasanFlags...)
+ } else {
+ flags.RustFlags = append(flags.RustFlags, asanFlags...)
+ }
}
if Bool(sanitize.Properties.Sanitize.Address) {
flags.RustFlags = append(flags.RustFlags, asanFlags...)
@@ -133,12 +137,14 @@
var depTag blueprint.DependencyTag
var deps []string
- if Bool(mod.sanitize.Properties.Sanitize.Fuzzer) || Bool(mod.sanitize.Properties.Sanitize.Address) {
+ if mod.IsSanitizerEnabled(cc.Asan) ||
+ (mod.IsSanitizerEnabled(cc.Fuzzer) && mctx.Arch().ArchType != android.Arm64) {
variations = append(variations,
blueprint.Variation{Mutator: "link", Variation: "shared"})
depTag = cc.SharedDepTag()
deps = []string{config.LibclangRuntimeLibrary(mod.toolchain(mctx), "asan")}
- } else if mod.IsSanitizerEnabled(cc.Hwasan) {
+ } else if mod.IsSanitizerEnabled(cc.Hwasan) ||
+ (mod.IsSanitizerEnabled(cc.Fuzzer) && mctx.Arch().ArchType == android.Arm64) {
// TODO(b/180495975): HWASan for static Rust binaries isn't supported yet.
if binary, ok := mod.compiler.(*binaryDecorator); ok {
if Bool(binary.Properties.Static_executable) {
@@ -285,11 +291,9 @@
func (mod *Module) StaticallyLinked() bool {
if lib, ok := mod.compiler.(libraryInterface); ok {
- if lib.rlib() || lib.static() {
- return true
- }
- } else if Bool(mod.compiler.(*binaryDecorator).Properties.Static_executable) {
- return true
+ return lib.rlib() || lib.static()
+ } else if binary, ok := mod.compiler.(*binaryDecorator); ok {
+ return Bool(binary.Properties.Static_executable)
}
return false
}