Merge "Allowlist tradefed-common-util and some dependents for tradefed" into main
diff --git a/android/filegroup.go b/android/filegroup.go
index 5a8c4b9..b6e37a5 100644
--- a/android/filegroup.go
+++ b/android/filegroup.go
@@ -22,7 +22,6 @@
 	"android/soong/bazel"
 	"android/soong/bazel/cquery"
 	"android/soong/ui/metrics/bp2build_metrics_proto"
-
 	"github.com/google/blueprint"
 	"github.com/google/blueprint/proptools"
 )
@@ -106,8 +105,10 @@
 		if f.Label == fg.Name() {
 			if len(srcs.Value.Includes) > 1 {
 				ctx.ModuleErrorf("filegroup '%s' cannot contain a file with the same name", fg.Name())
+				ctx.MarkBp2buildUnconvertible(bp2build_metrics_proto.UnconvertedReasonType_SRC_NAME_COLLISION, "")
+			} else {
+				panic("This situation should have been handled by FileGroupFactory's call to InitBazelModuleAsHandcrafted")
 			}
-			ctx.MarkBp2buildUnconvertible(bp2build_metrics_proto.UnconvertedReasonType_SRC_NAME_COLLISION, "")
 			return
 		}
 	}
@@ -253,6 +254,16 @@
 	module.AddProperties(&module.properties)
 	InitAndroidModule(module)
 	InitBazelModule(module)
+	AddBazelHandcraftedHook(module, func(ctx LoadHookContext) string {
+		// If there is a single src with the same name as the filegroup module name,
+		// then don't generate this filegroup. It will be OK for other targets
+		// to depend on this source file by name directly.
+		fg := ctx.Module().(*fileGroup)
+		if len(fg.properties.Srcs) == 1 && fg.Name() == fg.properties.Srcs[0] {
+			return fg.Name()
+		}
+		return ""
+	})
 	InitDefaultableModule(module)
 	return module
 }
diff --git a/bp2build/filegroup_conversion_test.go b/bp2build/filegroup_conversion_test.go
index cb2e207..9c49dac 100644
--- a/bp2build/filegroup_conversion_test.go
+++ b/bp2build/filegroup_conversion_test.go
@@ -40,7 +40,9 @@
     srcs: ["foo"],
 }
 `,
-		ExpectedBazelTargets: []string{}})
+		ExpectedBazelTargets:       []string{},
+		ExpectedHandcraftedModules: []string{"foo"}},
+	)
 }
 
 func TestFilegroupSameNameAsFile_MultipleFiles(t *testing.T) {
diff --git a/cc/config/global.go b/cc/config/global.go
index a586a3f..62b008b 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -29,83 +29,112 @@
 	// Flags used by lots of devices.  Putting them in package static variables
 	// will save bytes in build.ninja so they aren't repeated for every file
 	commonGlobalCflags = []string{
-		"-DANDROID",
-		"-fmessage-length=0",
-		"-W",
+		// Enable some optimization by default.
+		"-O2",
+
+		// Warnings enabled by default. Reference:
+		// https://clang.llvm.org/docs/DiagnosticsReference.html
 		"-Wall",
-		"-Wno-unused",
+		"-Wextra",
 		"-Winit-self",
 		"-Wpointer-arith",
-		"-Wunreachable-code-loop-increment",
+		"-Wunguarded-availability",
 
-		// Make paths in deps files relative
-		"-no-canonical-prefixes",
+		// Warnings treated as errors by default.
+		// See also noOverrideGlobalCflags for errors that cannot be disabled
+		// from Android.bp files.
 
-		"-DNDEBUG",
-		"-UDEBUG",
-
-		"-fno-exceptions",
-
-		"-O2",
-		"-fdebug-default-version=5",
-
-		"-fno-strict-aliasing",
-
+		// Using __DATE__/__TIME__ causes build nondeterminism.
 		"-Werror=date-time",
+		// Detects forgotten */& that usually cause a crash
+		"-Werror=int-conversion",
+		// Detects unterminated alignment modification pragmas, which often lead
+		// to ABI mismatch between modules and hard-to-debug crashes.
 		"-Werror=pragma-pack",
+		// Same as above, but detects alignment pragmas around a header
+		// inclusion.
 		"-Werror=pragma-pack-suspicious-include",
+		// Detects dividing an array size by itself, which is a common typo that
+		// leads to bugs.
+		"-Werror=sizeof-array-div",
+		// Detects a typo that cuts off a prefix from a string literal.
 		"-Werror=string-plus-int",
+		// Detects for loops that will never execute more than once (for example
+		// due to unconditional break), but have a non-empty loop increment
+		// clause. Often a mistake/bug.
 		"-Werror=unreachable-code-loop-increment",
 
-		// Force deprecation warnings to be warnings for code that compiles with -Werror.
-		// Making deprecated usages an error causes extreme pain when trying to deprecate anything.
-		"-Wno-error=deprecated-declarations",
+		// Warnings that should not be errors even for modules with -Werror.
 
+		// Making deprecated usages an error causes extreme pain when trying to
+		// deprecate anything.
+		"-Wno-error=deprecated-declarations",
+		// This rarely indicates a bug. http://b/145210666
+		"-Wno-error=reorder-init-list",
+
+		// Warnings disabled by default.
+
+		// Designated initializer syntax is recommended by the Google C++ style
+		// and is OK to use even if not formally supported by the chosen C++
+		// version.
+		"-Wno-c99-designator",
+		// Detects uses of a GNU C extension equivalent to a limited form of
+		// constexpr. Enabling this would require replacing many constants with
+		// macros, which is not a good trade-off.
+		"-Wno-gnu-folding-constant",
+		// AIDL generated code redeclares pure virtual methods in each
+		// subsequent version of an interface, so this warning is currently
+		// infeasible to enable.
+		"-Wno-inconsistent-missing-override",
+		// Incompatible with the Google C++ style guidance to use 'int' for loop
+		// indices; poor signal to noise ratio.
+		"-Wno-sign-compare",
+		// Poor signal to noise ratio.
+		"-Wno-unused",
+
+		// Global preprocessor constants.
+
+		"-DANDROID",
+		"-DNDEBUG",
+		"-UDEBUG",
 		"-D__compiler_offsetof=__builtin_offsetof",
+		// Allows the bionic versioning.h to indirectly determine whether the
+		// option -Wunguarded-availability is on or not.
+		"-D__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__",
+
+		// -f and -g options.
 
 		// Emit address-significance table which allows linker to perform safe ICF. Clang does
 		// not emit the table by default on Android since NDK still uses GNU binutils.
 		"-faddrsig",
 
-		// Help catch common 32/64-bit errors.
-		"-Werror=int-conversion",
+		// Emit debugging data in a modern format (DWARF v5).
+		"-fdebug-default-version=5",
 
 		// Force clang to always output color diagnostics. Ninja will strip the ANSI
 		// color codes if it is not running in a terminal.
 		"-fcolor-diagnostics",
 
-		// -Wno-sign-compare is incompatible with the Google C++ style guidance
-		// to use 'int' for loop indices, and the signal to noise ratio is poor
-		// anyway.
-		"-Wno-sign-compare",
-
-		// AIDL generated code redeclares pure virtual methods in each
-		// subsequent version of an interface, so this is currently infeasible
-		// to enable.
-		"-Wno-inconsistent-missing-override",
-
-		// Designated initializer syntax is recommended by the Google C++ style
-		// guide and should not be a warning, at least by default.
-		"-Wno-c99-designator",
-
-		// Warnings from clang-12
-		"-Wno-gnu-folding-constant",
-
-		// http://b/145210666
-		"-Wno-error=reorder-init-list",
-
-		// Calls to the APIs that are newer than the min sdk version of the caller should be
-		// guarded with __builtin_available.
-		"-Wunguarded-availability",
-		// This macro allows the bionic versioning.h to indirectly determine whether the
-		// option -Wunguarded-availability is on or not.
-		"-D__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__",
-
 		// Turn off FMA which got enabled by default in clang-r445002 (http://b/218805949)
 		"-ffp-contract=off",
 
+		// Google C++ style does not allow exceptions, turn them off by default.
+		"-fno-exceptions",
+
+		// Disable optimizations based on strict aliasing by default.
+		// The performance benefit of enabling them currently does not outweigh
+		// the risk of hard-to-reproduce bugs.
+		"-fno-strict-aliasing",
+
+		// Disable line wrapping for error messages - it interferes with
+		// displaying logs in web browsers.
+		"-fmessage-length=0",
+
 		// Using simple template names reduces the size of debug builds.
 		"-gsimple-template-names",
+
+		// Make paths in deps files relative.
+		"-no-canonical-prefixes",
 	}
 
 	commonGlobalConlyflags = []string{}
@@ -117,6 +146,7 @@
 		"-fdebug-default-version=4",
 	}
 
+	// Compilation flags for device code; not applied to host code.
 	deviceGlobalCflags = []string{
 		"-ffunction-sections",
 		"-fdata-sections",
@@ -152,6 +182,7 @@
 		"-fvisibility-inlines-hidden",
 	}
 
+	// Linking flags for device code; not applied to host binaries.
 	deviceGlobalLdflags = []string{
 		"-Wl,-z,noexecstack",
 		"-Wl,-z,relro",
@@ -180,8 +211,6 @@
 	hostGlobalLldflags = commonGlobalLldflags
 
 	commonGlobalCppflags = []string{
-		"-Wsign-promo",
-
 		// -Wimplicit-fallthrough is not enabled by -Wall.
 		"-Wimplicit-fallthrough",
 
@@ -194,6 +223,14 @@
 
 	// These flags are appended after the module's cflags, so they cannot be
 	// overridden from Android.bp files.
+	//
+	// NOTE: if you need to disable a warning to unblock a compiler upgrade
+	// and it is only triggered by third party code, add it to
+	// extraExternalCflags (if possible) or noOverrideExternalGlobalCflags
+	// (if the former doesn't work). If the new warning also occurs in first
+	// party code, try adding it to commonGlobalCflags first. Adding it here
+	// should be the last resort, because it prevents all code in Android from
+	// opting into the warning.
 	noOverrideGlobalCflags = []string{
 		"-Werror=bool-operation",
 		"-Werror=format-insufficient-args",
@@ -245,35 +282,9 @@
 
 	noOverride64GlobalCflags = []string{}
 
-	// Similar to noOverrideGlobalCflags, but applies only to third-party code
-	// (anything for which IsThirdPartyPath() in build/soong/android/paths.go
-	// returns true - includes external/, most of vendor/ and most of hardware/)
-	noOverrideExternalGlobalCflags = []string{
-		// http://b/151457797
-		"-fcommon",
-		// http://b/191699019
-		"-Wno-format-insufficient-args",
-		// http://b/296321145
-		// Indicates potential memory or stack corruption, so should be changed
-		// to a hard error. Currently triggered by some vendor code.
-		"-Wno-incompatible-function-pointer-types",
-		// http://b/296321508
-		// Introduced in response to a critical security vulnerability and
-		// should be a hard error - it requires only whitespace changes to fix.
-		"-Wno-misleading-indentation",
-		// Triggered by old LLVM code in external/llvm. Likely not worth
-		// enabling since it's a cosmetic issue.
-		"-Wno-bitwise-instead-of-logical",
-
-		"-Wno-unused-but-set-variable",
-		"-Wno-unused-but-set-parameter",
-		"-Wno-unqualified-std-cast-call",
-		"-Wno-array-parameter",
-		"-Wno-gnu-offsetof-extensions",
-	}
-
-	// Extra cflags for external third-party projects to disable warnings that
-	// are infeasible to fix in all the external projects and their upstream repos.
+	// Extra cflags applied to third-party code (anything for which
+	// IsThirdPartyPath() in build/soong/android/paths.go returns true;
+	// includes external/, most of vendor/ and most of hardware/)
 	extraExternalCflags = []string{
 		"-Wno-enum-compare",
 		"-Wno-enum-compare-switch",
@@ -303,11 +314,41 @@
 		"-Wno-deprecated-non-prototype",
 	}
 
+	// Similar to noOverrideGlobalCflags, but applies only to third-party code
+	// (see extraExternalCflags).
+	// This section can unblock compiler upgrades when a third party module that
+	// enables -Werror and some group of warnings explicitly triggers newly
+	// added warnings.
+	noOverrideExternalGlobalCflags = []string{
+		// http://b/151457797
+		"-fcommon",
+		// http://b/191699019
+		"-Wno-format-insufficient-args",
+		// http://b/296321145
+		// Indicates potential memory or stack corruption, so should be changed
+		// to a hard error. Currently triggered by some vendor code.
+		"-Wno-incompatible-function-pointer-types",
+		// http://b/296321508
+		// Introduced in response to a critical security vulnerability and
+		// should be a hard error - it requires only whitespace changes to fix.
+		"-Wno-misleading-indentation",
+		// Triggered by old LLVM code in external/llvm. Likely not worth
+		// enabling since it's a cosmetic issue.
+		"-Wno-bitwise-instead-of-logical",
+
+		"-Wno-unused-but-set-variable",
+		"-Wno-unused-but-set-parameter",
+		"-Wno-unqualified-std-cast-call",
+		"-Wno-array-parameter",
+		"-Wno-gnu-offsetof-extensions",
+	}
+
 	llvmNextExtraCommonGlobalCflags = []string{
 		// Do not report warnings when testing with the top of trunk LLVM.
 		"-Wno-error",
 	}
 
+	// Flags that must not appear in any command line.
 	IllegalFlags = []string{
 		"-w",
 	}
diff --git a/cc/fdo_profile.go b/cc/fdo_profile.go
index 05a8f46..cd3eb1e 100644
--- a/cc/fdo_profile.go
+++ b/cc/fdo_profile.go
@@ -72,7 +72,8 @@
 
 	ctx.CreateBazelTargetModuleWithRestrictions(
 		bazel.BazelTargetModuleProperties{
-			Rule_class: "fdo_profile",
+			Bzl_load_location: "//build/bazel/rules/fdo:fdo_profile.bzl",
+			Rule_class:        "fdo_profile",
 		},
 		android.CommonAttributes{
 			Name: fp.Name(),
diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index 40bf218..56c57b9 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -334,12 +334,18 @@
 		return false
 	}
 	// http://b/156513478
-	return true
+	// http://b/277624006
+	// This step is expensive. We're not able to do anything with the outputs of
+	// this step yet (canDiffAbi is flagged off because libabigail isn't able to
+	// handle all our libraries), disable it. There's no sense in protecting
+	// against checking in code that breaks abidw since by the time any of this
+	// can be turned on we'll need to migrate to STG anyway.
+	return false
 }
 
 // Feature flag to disable diffing against prebuilts.
 func canDiffAbi() bool {
-	return true
+	return false
 }
 
 func (this *stubDecorator) dumpAbi(ctx ModuleContext, symbolList android.Path) {
diff --git a/java/base.go b/java/base.go
index db237da..4168e08 100644
--- a/java/base.go
+++ b/java/base.go
@@ -641,6 +641,11 @@
 		return nil, fmt.Errorf("%q was requested, but no output file was found.", tag)
 	case ".generated_srcjars":
 		return j.properties.Generated_srcjars, nil
+	case ".lint":
+		if j.linter.outputs.xml != nil {
+			return android.Paths{j.linter.outputs.xml}, nil
+		}
+		return nil, fmt.Errorf("%q was requested, but no output file was found.", tag)
 	default:
 		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
 	}
diff --git a/java/lint.go b/java/lint.go
index f84f1c0..34720e5 100644
--- a/java/lint.go
+++ b/java/lint.go
@@ -66,6 +66,10 @@
 		// This will be true by default for test module types, false otherwise.
 		// If soong gets support for testonly, this flag should be replaced with that.
 		Test *bool
+
+		// Whether to ignore the exit code of Android lint. This is the --exit_code
+		// option. Defaults to false.
+		Suppress_exit_code *bool
 	}
 }
 
@@ -504,7 +508,8 @@
 	rule.Temporary(lintPaths.projectXML)
 	rule.Temporary(lintPaths.configXML)
 
-	if exitCode := ctx.Config().Getenv("ANDROID_LINT_SUPPRESS_EXIT_CODE"); exitCode == "" {
+	suppressExitCode := BoolDefault(l.properties.Lint.Suppress_exit_code, false)
+	if exitCode := ctx.Config().Getenv("ANDROID_LINT_SUPPRESS_EXIT_CODE"); exitCode == "" && !suppressExitCode {
 		cmd.Flag("--exitcode")
 	}
 
diff --git a/tests/sbom_test.sh b/tests/sbom_test.sh
index 73fbeab..8dc1630 100755
--- a/tests/sbom_test.sh
+++ b/tests/sbom_test.sh
@@ -35,14 +35,15 @@
 }
 
 function run_soong {
-  target_product="$1";shift
-  out_dir="$1"; shift
-  targets="$1"; shift
+  local out_dir="$1"; shift
+  local targets="$1"; shift
   if [ "$#" -ge 1 ]; then
-    apps=$1; shift
-    TARGET_PRODUCT="${target_product}" TARGET_BUILD_VARIANT=userdebug OUT_DIR="${out_dir}" TARGET_BUILD_UNBUNDLED=true TARGET_BUILD_APPS=$apps build/soong/soong_ui.bash --make-mode ${targets}
+    local apps=$1; shift
+    TARGET_PRODUCT="${target_product}" TARGET_RELEASE="${target_release}" TARGET_BUILD_VARIANT="${target_build_variant}" OUT_DIR="${out_dir}" TARGET_BUILD_UNBUNDLED=true TARGET_BUILD_APPS=$apps \
+        build/soong/soong_ui.bash --make-mode ${targets}
   else
-    TARGET_PRODUCT="${target_product}" TARGET_BUILD_VARIANT=userdebug OUT_DIR="${out_dir}" build/soong/soong_ui.bash --make-mode ${targets}
+    TARGET_PRODUCT="${target_product}" TARGET_RELEASE="${target_release}" TARGET_BUILD_VARIANT="${target_build_variant}" OUT_DIR="${out_dir}" \
+        build/soong/soong_ui.bash --make-mode ${targets}
   fi
 }
 
@@ -67,7 +68,7 @@
 
   # Test
   # m droid, build sbom later in case additional dependencies might be built and included in partition images.
-  run_soong "aosp_cf_x86_64_phone" "${out_dir}" "droid dump.erofs lz4"
+  run_soong "${out_dir}" "droid dump.erofs lz4"
 
   product_out=$out_dir/target/product/vsoc_x86_64
   sbom_test=$product_out/sbom_test
@@ -75,7 +76,7 @@
   cp $product_out/*.img $sbom_test
 
   # m sbom
-  run_soong "aosp_cf_x86_64_phone" "${out_dir}" sbom
+  run_soong "${out_dir}" sbom
 
   # Generate installed file list from .img files in PRODUCT_OUT
   dump_erofs=$out_dir/host/linux-x86/bin/dump.erofs
@@ -217,7 +218,7 @@
   out_dir="$(setup)"
 
   # run_soong to build com.android.adbd.apex
-  run_soong "module_arm64" "${out_dir}" "sbom deapexer" "com.android.adbd"
+  run_soong "${out_dir}" "sbom deapexer" "com.android.adbd"
 
   deapexer=${out_dir}/host/linux-x86/bin/deapexer
   debugfs=${out_dir}/host/linux-x86/bin/debugfs_static
@@ -249,7 +250,7 @@
   out_dir="$(setup)"
 
   # run_soong to build Browser2.apk
-  run_soong "module_arm64" "${out_dir}" "sbom" "Browser2"
+  run_soong "${out_dir}" "sbom" "Browser2"
 
   sbom_file=${out_dir}/target/product/module_arm64/system/product/app/Browser2/Browser2.apk.spdx.json
   echo "============ Diffing files in Browser2.apk and SBOM"
@@ -271,6 +272,41 @@
   cleanup "${out_dir}"
 }
 
-test_sbom_aosp_cf_x86_64_phone
-test_sbom_unbundled_apex
-test_sbom_unbundled_apk
\ No newline at end of file
+target_product=aosp_cf_x86_64_phone
+target_release=trunk_staging
+target_build_variant=userdebug
+for i in "$@"; do
+  case $i in
+    TARGET_PRODUCT=*)
+      target_product=${i#*=}
+      shift
+      ;;
+    TARGET_RELEASE=*)
+      target_release=${i#*=}
+      shift
+      ;;
+    TARGET_BUILD_VARIANT=*)
+      target_build_variant=${i#*=}
+      shift
+      ;;
+    *)
+      echo "Unknown command line arguments: $i"
+      exit 1
+      ;;
+  esac
+done
+
+echo "target product: $target_product, target_release: $target_release, target build variant: $target_build_variant"
+case $target_product in
+  aosp_cf_x86_64_phone)
+    test_sbom_aosp_cf_x86_64_phone
+    ;;
+  module_arm64)
+    test_sbom_unbundled_apex
+    test_sbom_unbundled_apk
+    ;;
+  *)
+    echo "Unknown TARGET_PRODUCT: $target_product"
+    exit 1
+    ;;
+esac
\ No newline at end of file