Merge "Use a less hacky way to detect if a module is Fuzzer enabled" am: 2976fa1185

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2614329

Change-Id: I82dec6d355d0b681a4f7ccacb91cfcf5f73cd529
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

cc/cc.go

@@ -524,6 +524,7 @@ type ModuleContextIntf interface {
 	isAfdoCompile() bool
 	isPgoCompile() bool
 	isCfi() bool
+	isFuzzer() bool
 	isNDKStubLibrary() bool
 	useClangLld(actx ModuleContext) bool
 	isForPlatform() bool
@@ -1365,6 +1366,13 @@ func (c *Module) isCfi() bool {
 	return false
 }
 
+func (c *Module) isFuzzer() bool {
+	if sanitize := c.sanitize; sanitize != nil {
+		return Bool(sanitize.Properties.SanitizeMutated.Fuzzer)
+	}
+	return false
+}
+
 func (c *Module) isNDKStubLibrary() bool {
 	if _, ok := c.compiler.(*stubDecorator); ok {
 		return true
@@ -1660,6 +1668,10 @@ func (ctx *moduleContextImpl) isCfi() bool {
 	return ctx.mod.isCfi()
 }
 
+func (ctx *moduleContextImpl) isFuzzer() bool {
+	return ctx.mod.isFuzzer()
+}
+
 func (ctx *moduleContextImpl) isNDKStubLibrary() bool {
 	return ctx.mod.isNDKStubLibrary()
 }

cc/lto.go

@@ -74,7 +74,7 @@ func (lto *lto) begin(ctx BaseModuleContext) {
 func (lto *lto) flags(ctx BaseModuleContext, flags Flags) Flags {
 	// TODO(b/131771163): Disable LTO when using explicit fuzzing configurations.
 	// LTO breaks fuzzer builds.
-	if inList("-fsanitize=fuzzer-no-link", flags.Local.CFlags) {
+	if ctx.isFuzzer() {
 		return flags
 	}