Implement bp2build for linker_config

Pair: agespino
Bug: 211666695
Test: TODO
Change-Id: I479bcd7c53b1c57563fb4277ec39ad70b16030b8

android/allowlists/allowlists.go

@@ -363,6 +363,7 @@ var (
 	}
 
 	Bp2buildModuleTypeAlwaysConvertList = []string{
+		"linker_config",
 		"java_import",
 		"java_import_host",
 	}
@@ -437,7 +438,6 @@ var (
 		"art-script",                                                 // depends on unconverted modules: dalvikvm, dex2oat
 		"bin2c_fastdeployagent",                                      // depends on unconverted modules: deployagent
 		"com.android.runtime",                                        // depends on unconverted modules: bionic-linker-config, linkerconfig
-		"conv_linker_config",                                         // depends on unconverted modules: linker_config_proto
 		"currysrc",                                                   // depends on unconverted modules: currysrc_org.eclipse, guavalib, jopt-simple-4.9
 		"dex2oat-script",                                             // depends on unconverted modules: dex2oat
 		"generated_android_icu4j_resources",                          // depends on unconverted modules: android_icu4j_srcgen_binary, soong_zip

bp2build/Android.bp

@@ -20,15 +20,16 @@ bootstrap_go_package {
         "soong-android",
         "soong-android-allowlists",
         "soong-android-soongconfig",
-        "soong-shared",
         "soong-apex",
         "soong-bazel",
         "soong-cc",
         "soong-cc-config",
         "soong-etc",
         "soong-genrule",
+        "soong-linkerconfig",
         "soong-python",
         "soong-sh",
+        "soong-shared",
         "soong-starlark-format",
         "soong-ui-metrics",
     ],
@@ -58,6 +59,7 @@ bootstrap_go_package {
         "java_library_host_conversion_test.go",
         "java_plugin_conversion_test.go",
         "java_proto_conversion_test.go",
+        "linker_config_conversion_test.go",
         "performance_test.go",
         "prebuilt_etc_conversion_test.go",
         "python_binary_conversion_test.go",

bp2build/linker_config_conversion_test.go

@@ -0,0 +1,59 @@
+// Copyright 2022 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bp2build
+
+import (
+	"fmt"
+	"testing"
+
+	"android/soong/linkerconfig"
+)
+
+func runLinkerConfigTestCase(t *testing.T, tc bp2buildTestCase) {
+	t.Helper()
+	(&tc).moduleTypeUnderTest = "linker_config"
+	(&tc).moduleTypeUnderTestFactory = linkerconfig.LinkerConfigFactory
+	runBp2BuildTestCaseSimple(t, tc)
+}
+
+func TestLinkerConfigConvertsSrc(t *testing.T) {
+	runLinkerConfigTestCase(t,
+		bp2buildTestCase{
+			blueprint: `
+linker_config {
+	name: "foo",
+	src: "a.json",
+}
+`,
+			expectedBazelTargets: []string{makeBazelTarget("linker_config", "foo", attrNameToString{
+				"src": `"a.json"`,
+			})},
+		})
+
+}
+
+func TestLinkerConfigNoSrc(t *testing.T) {
+	runLinkerConfigTestCase(t,
+		bp2buildTestCase{
+			blueprint: `
+linker_config {
+	name: "foo",
+}
+`,
+			expectedBazelTargets: []string{},
+			expectedErr:          fmt.Errorf("Android.bp:2:1: module \"foo\": src: empty src is not supported"),
+		})
+
+}

linkerconfig/linkerconfig.go

@@ -22,6 +22,7 @@ import (
 	"github.com/google/blueprint/proptools"
 
 	"android/soong/android"
+	"android/soong/bazel"
 	"android/soong/cc"
 	"android/soong/etc"
 )
@@ -36,7 +37,7 @@ func init() {
 }
 
 func registerLinkerConfigBuildComponent(ctx android.RegistrationContext) {
-	ctx.RegisterModuleType("linker_config", linkerConfigFactory)
+	ctx.RegisterModuleType("linker_config", LinkerConfigFactory)
 }
 
 type linkerConfigProperties struct {
@@ -52,6 +53,7 @@ type linkerConfigProperties struct {
 
 type linkerConfig struct {
 	android.ModuleBase
+	android.BazelModuleBase
 	properties linkerConfigProperties
 
 	outputFilePath android.OutputPath
@@ -100,6 +102,28 @@ func (l *linkerConfig) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	ctx.InstallFile(l.installDirPath, l.outputFilePath.Base(), l.outputFilePath)
 }
 
+type linkerConfigAttributes struct {
+	Src bazel.LabelAttribute
+}
+
+func (l *linkerConfig) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
+	if l.properties.Src == nil {
+		ctx.PropertyErrorf("src", "empty src is not supported")
+		return
+	}
+	src := android.BazelLabelForModuleSrcSingle(ctx, *l.properties.Src)
+	targetModuleProperties := bazel.BazelTargetModuleProperties{
+		Rule_class:        "linker_config",
+		Bzl_load_location: "//build/bazel/rules:linker_config.bzl",
+	}
+	ctx.CreateBazelTargetModule(
+		targetModuleProperties,
+		android.CommonAttributes{Name: l.Name()},
+		&linkerConfigAttributes{
+			Src: bazel.LabelAttribute{Value: &src},
+		})
+}
+
 func BuildLinkerConfig(ctx android.ModuleContext, builder *android.RuleBuilder,
 	input android.Path, otherModules []android.Module, output android.OutputPath) {
 
@@ -141,10 +165,11 @@ func BuildLinkerConfig(ctx android.ModuleContext, builder *android.RuleBuilder,
 // linker_config generates protobuf file from json file. This protobuf file will be used from
 // linkerconfig while generating ld.config.txt. Format of this file can be found from
 // https://android.googlesource.com/platform/system/linkerconfig/+/master/README.md
-func linkerConfigFactory() android.Module {
+func LinkerConfigFactory() android.Module {
 	m := &linkerConfig{}
 	m.AddProperties(&m.properties)
 	android.InitAndroidArchModule(m, android.HostAndDeviceSupported, android.MultilibFirst)
+	android.InitBazelModule(m)
 	return m
 }