Support bssl hash injection for libcrypto.

Bug: 215541108
Test: Build libcrypto with Bazel and verify the hash injected, add unit
test
Change-Id: I0375307aab0b1e60a8be298d680e1e0af1ebb454

Change-Id: I9133ce398e2024fe7834a292bf2f5ba3222d630b

bp2build/cc_library_conversion_test.go

@@ -1287,6 +1287,7 @@ func makeCcLibraryTargets(name string, attrs attrNameToString) []string {
 		"strip":                    true,
 		"stubs_symbol_file":        true,
 		"stubs_versions":           true,
+		"inject_bssl_hash":         true,
 	}
 	sharedAttrs := attrNameToString{}
 	staticAttrs := attrNameToString{}
@@ -1822,6 +1823,33 @@ cc_library {
 	)
 }
 
+func TestLibcryptoHashInjection(t *testing.T) {
+	runCcLibraryTestCase(t, bp2buildTestCase{
+		description:                "cc_library - libcrypto hash injection",
+		moduleTypeUnderTest:        "cc_library",
+		moduleTypeUnderTestFactory: cc.LibraryFactory,
+		filesystem:                 map[string]string{},
+		blueprint: soongCcLibraryPreamble + `
+cc_library {
+    name: "libcrypto",
+    target: {
+        android: {
+            inject_bssl_hash: true,
+        },
+    },
+    include_build_directory: false,
+}
+`,
+		expectedBazelTargets: makeCcLibraryTargets("libcrypto", attrNameToString{
+			"inject_bssl_hash": `select({
+        "//build/bazel/platforms/os:android": True,
+        "//conditions:default": None,
+    })`,
+		}),
+	},
+	)
+}
+
 func TestCcLibraryCppStdWithGnuExtensions_ConvertsToFeatureAttr(t *testing.T) {
 	type testCase struct {
 		cpp_std        string

cc/library.go

@@ -386,6 +386,21 @@ func libraryBp2Build(ctx android.TopDownMutatorContext, m *Module) {
 		Stubs_versions:    compilerAttrs.stubsVersions,
 	}
 
+	for axis, configToProps := range m.GetArchVariantProperties(ctx, &LibraryProperties{}) {
+		for config, props := range configToProps {
+			if props, ok := props.(*LibraryProperties); ok {
+				if props.Inject_bssl_hash != nil {
+					// This is an edge case applies only to libcrypto
+					if m.Name() == "libcrypto" {
+						sharedTargetAttrs.Inject_bssl_hash.SetSelectValue(axis, config, props.Inject_bssl_hash)
+					} else {
+						ctx.PropertyErrorf("inject_bssl_hash", "only applies to libcrypto")
+					}
+				}
+			}
+		}
+	}
+
 	staticProps := bazel.BazelTargetModuleProperties{
 		Rule_class:        "cc_library_static",
 		Bzl_load_location: "//build/bazel/rules:cc_library_static.bzl",
@@ -2600,4 +2615,5 @@ type bazelCcLibrarySharedAttributes struct {
 
 	Stubs_symbol_file *string
 	Stubs_versions    bazel.StringListAttribute
+	Inject_bssl_hash  bazel.BoolAttribute
 }