Add bpf_test.go to build and fix tests

bpf_test.go was not listed in testSrcs, which meant it was not run
during the build, but ran and failed with go test android/soong/...

Don't redeclare the cc module types and mutators, use exported
functions from cc/testing.go instead, which contain a new
dependency needed by cc modules.

This reapplies I4542640e8ff08e71565ed50617dbe67d86b29b69 after
fixes for mac tests.

Test: m
Test: go test android/soong/...
Change-Id: I3dc3fdedbd7063df4a2e0cadf2a4e0711b1823ad
diff --git a/bpf/bpf_test.go b/bpf/bpf_test.go
index 1d53e41..cbb251f 100644
--- a/bpf/bpf_test.go
+++ b/bpf/bpf_test.go
@@ -20,7 +20,7 @@
 	"testing"
 
 	"android/soong/android"
-	cc2 "android/soong/cc"
+	"android/soong/cc"
 )
 
 var buildDir string
@@ -49,115 +49,14 @@
 }
 
 func testContext(bp string) *android.TestContext {
-	ctx := android.NewTestArchContext()
-	ctx.RegisterModuleType("bpf", android.ModuleFactoryAdaptor(bpfFactory))
-	ctx.RegisterModuleType("cc_test", android.ModuleFactoryAdaptor(cc2.TestFactory))
-	ctx.RegisterModuleType("cc_library", android.ModuleFactoryAdaptor(cc2.LibraryFactory))
-	ctx.RegisterModuleType("cc_library_static", android.ModuleFactoryAdaptor(cc2.LibraryStaticFactory))
-	ctx.RegisterModuleType("cc_object", android.ModuleFactoryAdaptor(cc2.ObjectFactory))
-	ctx.RegisterModuleType("toolchain_library", android.ModuleFactoryAdaptor(cc2.ToolchainLibraryFactory))
-	ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
-		ctx.BottomUp("link", cc2.LinkageMutator).Parallel()
-	})
-	ctx.Register()
-
-	// Add some modules that are required by the compiler and/or linker
-	bp = bp + `
-		toolchain_library {
-			name: "libatomic",
-			vendor_available: true,
-			recovery_available: true,
-			src: "",
-		}
-
-		toolchain_library {
-			name: "libclang_rt.builtins-arm-android",
-			vendor_available: true,
-			recovery_available: true,
-			src: "",
-		}
-
-		toolchain_library {
-			name: "libclang_rt.builtins-aarch64-android",
-			vendor_available: true,
-			recovery_available: true,
-			src: "",
-		}
-
-		toolchain_library {
-			name: "libgcc",
-			vendor_available: true,
-			recovery_available: true,
-			src: "",
-		}
-
-		cc_library {
-			name: "libc",
-			no_libgcc: true,
-			nocrt: true,
-			system_shared_libs: [],
-			recovery_available: true,
-		}
-
-		cc_library {
-			name: "libm",
-			no_libgcc: true,
-			nocrt: true,
-			system_shared_libs: [],
-			recovery_available: true,
-		}
-
-		cc_library {
-			name: "libdl",
-			no_libgcc: true,
-			nocrt: true,
-			system_shared_libs: [],
-			recovery_available: true,
-		}
-
-		cc_library {
-			name: "libgtest",
-			host_supported: true,
-			vendor_available: true,
-		}
-
-		cc_library {
-			name: "libgtest_main",
-			host_supported: true,
-			vendor_available: true,
-		}
-
-		cc_object {
-			name: "crtbegin_dynamic",
-			recovery_available: true,
-			vendor_available: true,
-		}
-
-		cc_object {
-			name: "crtend_android",
-			recovery_available: true,
-			vendor_available: true,
-		}
-
-		cc_object {
-			name: "crtbegin_so",
-			recovery_available: true,
-			vendor_available: true,
-		}
-
-		cc_object {
-			name: "crtend_so",
-			recovery_available: true,
-			vendor_available: true,
-		}
-	`
 	mockFS := map[string][]byte{
-		"Android.bp":  []byte(bp),
 		"bpf.c":       nil,
 		"BpfTest.cpp": nil,
 	}
 
-	ctx.MockFileSystem(mockFS)
+	ctx := cc.CreateTestContext(bp, mockFS, android.Android)
+	ctx.RegisterModuleType("bpf", android.ModuleFactoryAdaptor(bpfFactory))
+	ctx.Register()
 
 	return ctx
 }
@@ -174,6 +73,7 @@
 			name: "vts_test_binary_bpf_module",
 			srcs: ["BpfTest.cpp"],
 			data: [":bpf.o"],
+			gtest: false,
 		}
 	`