Add support for native bridge trait

Adds a native bridge trait that if required will cause a
cc_library_header module to generate a cc_prebuilt_library_headers with
native_bridge_supported: true. It will fail if the cc_library_header's
native bridge variant would produce native bridge specific properties,
distinct from the other architecture variants, in the generated
cc_prebuilt_library_headers.

Bug: 195754365
Test: m nothing
Change-Id: I282fbb9095de6c6af57cca4eb4260e2c6c2da8cc

1 files changed, 102 insertions, 0 deletions

diff --git a/sdk/cc_sdk_test.go b/sdk/cc_sdk_test.go
index 25e35fcdb..da90c6dfc 100644
--- a/sdk/cc_sdk_test.go
+++ b/sdk/cc_sdk_test.go
@@ -32,6 +32,23 @@ var ccTestFs = android.MockFS{
 	"some/where/stubslib.map.txt":     nil,
 }
 
+// Adds a native bridge target to the configured list of targets.
+var prepareForTestWithNativeBridgeTarget = android.FixtureModifyConfig(func(config android.Config) {
+	config.Targets[android.Android] = append(config.Targets[android.Android], android.Target{
+		Os: android.Android,
+		Arch: android.Arch{
+			ArchType:     android.Arm64,
+			ArchVariant:  "armv8-a",
+			CpuVariant:   "cpu",
+			Abi:          nil,
+			ArchFeatures: nil,
+		},
+		NativeBridge:             android.NativeBridgeEnabled,
+		NativeBridgeHostArchName: "x86_64",
+		NativeBridgeRelativePath: "native_bridge",
+	})
+})
+
 func testSdkWithCc(t *testing.T, bp string) *android.TestResult {
 	t.Helper()
 	return testSdkWithFs(t, bp, ccTestFs)
@@ -1979,6 +1996,91 @@ myinclude/Test.h -> include/myinclude/Test.h
 	)
 }
 
+func TestSnapshotWithCcHeadersLibraryAndNativeBridgeSupport(t *testing.T) {
+	result := android.GroupFixturePreparers(
+		cc.PrepareForTestWithCcDefaultModules,
+		PrepareForTestWithSdkBuildComponents,
+		ccTestFs.AddToFixture(),
+		prepareForTestWithNativeBridgeTarget,
+	).RunTestWithBp(t, `
+		sdk {
+			name: "mysdk",
+			native_header_libs: ["mynativeheaders"],
+			traits: {
+				native_bridge_support: ["mynativeheaders"],
+			},
+		}
+
+		cc_library_headers {
+			name: "mynativeheaders",
+			export_include_dirs: ["myinclude"],
+			stl: "none",
+			system_shared_libs: [],
+			native_bridge_supported: true,
+		}
+	`)
+
+	CheckSnapshot(t, result, "mysdk", "",
+		checkUnversionedAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+cc_prebuilt_library_headers {
+    name: "mynativeheaders",
+    prefer: false,
+    visibility: ["//visibility:public"],
+    apex_available: ["//apex_available:platform"],
+    native_bridge_supported: true,
+    stl: "none",
+    compile_multilib: "both",
+    system_shared_libs: [],
+    export_include_dirs: ["include/myinclude"],
+}
+`),
+		checkAllCopyRules(`
+myinclude/Test.h -> include/myinclude/Test.h
+`),
+	)
+}
+
+// TestSnapshotWithCcHeadersLibrary_DetectsNativeBridgeSpecificProperties verifies that when a
+// module that has different output files for a native bridge target requests the native bridge
+// variants are copied into the sdk snapshot that it reports an error.
+func TestSnapshotWithCcHeadersLibrary_DetectsNativeBridgeSpecificProperties(t *testing.T) {
+	android.GroupFixturePreparers(
+		cc.PrepareForTestWithCcDefaultModules,
+		PrepareForTestWithSdkBuildComponents,
+		ccTestFs.AddToFixture(),
+		prepareForTestWithNativeBridgeTarget,
+	).ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(
+		`\QArchitecture variant "arm64_native_bridge" of sdk member "mynativeheaders" has properties distinct from other variants; this is not yet supported. The properties are:
+        export_include_dirs: [
+            "arm64_native_bridge/include/myinclude_nativebridge",
+            "arm64_native_bridge/include/myinclude",
+        ],\E`)).
+		RunTestWithBp(t, `
+		sdk {
+			name: "mysdk",
+			native_header_libs: ["mynativeheaders"],
+			traits: {
+				native_bridge_support: ["mynativeheaders"],
+			},
+		}
+
+		cc_library_headers {
+			name: "mynativeheaders",
+			export_include_dirs: ["myinclude"],
+			stl: "none",
+			system_shared_libs: [],
+			native_bridge_supported: true,
+			target: {
+				native_bridge: {
+					export_include_dirs: ["myinclude_nativebridge"],
+				},
+			},
+		}
+	`)
+}
+
 func TestHostSnapshotWithCcHeadersLibrary(t *testing.T) {
 	result := testSdkWithCc(t, `
 		sdk {