rust: Add support for host fuzzers.
Adds support for host-based Rust fuzzers.
Bug: 282897366
Test: SANITZE_HOST="address" m <host_fuzzer>
Test: run fuzzer
Change-Id: Ibb951f651ef12e763778ebbf12e66769a7113920
diff --git a/rust/compiler.go b/rust/compiler.go
index 06ae12f..8d89c48 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -320,6 +320,15 @@
flags.LinkFlags = append(flags.LinkFlags, cc.RpathFlags(ctx)...)
}
+ if !ctx.toolchain().Bionic() && ctx.Os() != android.LinuxMusl && !ctx.Windows() {
+ // Add -ldl, -lpthread, -lm and -lrt to host builds to match the default behavior of device
+ // builds. This is irrelevant for the Windows target as these are Posix specific.
+ flags.LinkFlags = append(flags.LinkFlags,
+ "-ldl",
+ "-lpthread",
+ "-lm",
+ )
+ }
return flags
}
diff --git a/rust/fuzz.go b/rust/fuzz.go
index c2b9405..235f517 100644
--- a/rust/fuzz.go
+++ b/rust/fuzz.go
@@ -25,6 +25,7 @@
func init() {
android.RegisterModuleType("rust_fuzz", RustFuzzFactory)
+ android.RegisterModuleType("rust_fuzz_host", RustFuzzHostFactory)
}
type fuzzDecorator struct {
@@ -43,6 +44,11 @@
return module.Init()
}
+func RustFuzzHostFactory() android.Module {
+ module, _ := NewRustFuzz(android.HostSupported)
+ return module.Init()
+}
+
func NewRustFuzz(hod android.HostOrDeviceSupported) (*Module, *fuzzDecorator) {
module, binary := NewRustBinary(hod)
fuzz := &fuzzDecorator{
diff --git a/rust/fuzz_test.go b/rust/fuzz_test.go
index 0aecf61..ee28c6d 100644
--- a/rust/fuzz_test.go
+++ b/rust/fuzz_test.go
@@ -34,6 +34,10 @@
srcs: ["foo.rs"],
rustlibs: ["libtest_fuzzing"],
}
+ rust_fuzz_host {
+ name: "host_fuzzer",
+ srcs: ["foo.rs"],
+ }
`)
// Check that appropriate dependencies are added and that the rustlib linkage is correct.
@@ -50,7 +54,13 @@
if !strings.Contains(fuzz_libtest.Args["rustcFlags"], "-C passes='sancov-module'") ||
!strings.Contains(fuzz_libtest.Args["rustcFlags"], "--cfg fuzzing") {
t.Errorf("rust_fuzz module does not contain the expected flags (sancov-module, cfg fuzzing).")
+ }
+ // Check that host modules support fuzzing.
+ host_fuzzer := ctx.ModuleForTests("fuzz_libtest", "android_arm64_armv8-a_fuzzer").Rule("rustc")
+ if !strings.Contains(host_fuzzer.Args["rustcFlags"], "-C passes='sancov-module'") ||
+ !strings.Contains(host_fuzzer.Args["rustcFlags"], "--cfg fuzzing") {
+ t.Errorf("rust_fuzz_host module does not contain the expected flags (sancov-module, cfg fuzzing).")
}
// Check that dependencies have 'fuzzer' variants produced for them as well.
diff --git a/rust/sanitize.go b/rust/sanitize.go
index 862baf7..cc19e6e 100644
--- a/rust/sanitize.go
+++ b/rust/sanitize.go
@@ -209,8 +209,8 @@
}
// TODO:(b/178369775)
- // For now sanitizing is only supported on devices
- if ctx.Os() == android.Android && (Bool(s.Hwaddress) || Bool(s.Address) || Bool(s.Memtag_heap) || Bool(s.Fuzzer)) {
+ // For now sanitizing is only supported on non-windows targets
+ if ctx.Os() != android.Windows && (Bool(s.Hwaddress) || Bool(s.Address) || Bool(s.Memtag_heap) || Bool(s.Fuzzer)) {
sanitize.Properties.SanitizerEnabled = true
}
}
@@ -234,6 +234,11 @@
if Bool(sanitize.Properties.Sanitize.Address) {
flags.RustFlags = append(flags.RustFlags, asanFlags...)
+ if ctx.Host() {
+ // -nodefaultlibs (provided with libc++) prevents the driver from linking
+ // libraries needed with -fsanitize=address. http://b/18650275 (WAI)
+ flags.LinkFlags = append(flags.LinkFlags, []string{"-Wl,--no-as-needed"}...)
+ }
}
return flags, deps
}
@@ -273,10 +278,17 @@
var deps []string
if mod.IsSanitizerEnabled(cc.Asan) {
- variations = append(variations,
- blueprint.Variation{Mutator: "link", Variation: "shared"})
- depTag = cc.SharedDepTag()
- deps = []string{config.LibclangRuntimeLibrary(mod.toolchain(mctx), "asan")}
+ if mod.Host() {
+ variations = append(variations,
+ blueprint.Variation{Mutator: "link", Variation: "static"})
+ depTag = cc.StaticDepTag(false)
+ deps = []string{config.LibclangRuntimeLibrary(mod.toolchain(mctx), "asan.static")}
+ } else {
+ 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) {
// TODO(b/204776996): HWASan for static Rust binaries isn't supported yet.
if binary, ok := mod.compiler.(binaryInterface); ok {
@@ -391,7 +403,8 @@
}
func (mod *Module) SanitizerSupported(t cc.SanitizerType) bool {
- if mod.Host() {
+ // Sanitizers are not supported on Windows targets.
+ if mod.Os() == android.Windows {
return false
}
switch t {
@@ -417,7 +430,8 @@
}
func (mod *Module) IsSanitizerExplicitlyDisabled(t cc.SanitizerType) bool {
- if mod.Host() {
+ // Sanitizers are not supported on Windows targets.
+ if mod.Os() == android.Windows {
return true
}
diff --git a/rust/testing.go b/rust/testing.go
index 7f30569..3fe751e 100644
--- a/rust/testing.go
+++ b/rust/testing.go
@@ -182,6 +182,7 @@
ctx.RegisterModuleType("rust_library_host_dylib", RustLibraryDylibHostFactory)
ctx.RegisterModuleType("rust_library_host_rlib", RustLibraryRlibHostFactory)
ctx.RegisterModuleType("rust_fuzz", RustFuzzFactory)
+ ctx.RegisterModuleType("rust_fuzz_host", RustFuzzHostFactory)
ctx.RegisterModuleType("rust_ffi", RustFFIFactory)
ctx.RegisterModuleType("rust_ffi_shared", RustFFISharedFactory)
ctx.RegisterModuleType("rust_ffi_static", RustFFIStaticFactory)