Always set ASAN_SYMBOLIZER_PATH appropriately

Otherwise tools built with ASAN can't symbolize their dumps, as
llvm-symbolizer is not allowed to be used from $PATH.

Fixes: 139825736
Test: cherry-pick https://android-review.googlesource.com/c/platform/system/tools/aidl/+/1106532
  mmma ASAN_OPTIONS="" SANITIZE_HOST=address system/tools/aidl
Change-Id: Ib1eeec15ce6694d7bde54c7201b3280e38df3a83

ui/build/config.go

@@ -180,6 +180,11 @@ func NewConfig(ctx Context, args ...string) Config {
 
 	ret.environ.Set("TMPDIR", absPath(ctx, ret.TempDir()))
 
+	// Always set ASAN_SYMBOLIZER_PATH so that ASAN-based tools can symbolize any crashes
+	symbolizerPath := filepath.Join("prebuilts/clang/host", ret.HostPrebuiltTag(),
+		"llvm-binutils-stable/llvm-symbolizer")
+	ret.environ.Set("ASAN_SYMBOLIZER_PATH", absPath(ctx, symbolizerPath))
+
 	// Precondition: the current directory is the top of the source tree
 	checkTopDir(ctx)
 

ui/build/kati.go

@@ -171,6 +171,7 @@ func runKatiPackage(ctx Context, config Config) {
 			"TMPDIR",
 
 			// Tool configs
+			"ASAN_SYMBOLIZER_PATH",
 			"JAVA_HOME",
 			"PYTHONDONTWRITEBYTECODE",