Add bp2build converter for bpf (b3cb38c3) · Commits · e / os / android_build_soong

android/allowlists/allowlists.go

+1 −0

Original line number	Diff line number	Diff line
		@@ -589,6 +589,7 @@ var (
		"ndk_headers",
		"ndk_library",
		"sysprop_library",
		"bpf",
		}

		// Add the names of modules that bp2build should never convert, if it is

bp2build/bpf_conversion_test.go

0 → 100644

+65 −0

Original line number	Diff line number	Diff line
		// 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 (
		"android/soong/android"
		"android/soong/bpf"

		"testing"
		)

		func runBpfTestCase(t *testing.T, tc Bp2buildTestCase) {
		t.Helper()
		(&tc).ModuleTypeUnderTest = "bpf"
		(&tc).ModuleTypeUnderTestFactory = bpf.BpfFactory
		RunBp2BuildTestCase(t, registerBpfModuleTypes, tc)
		}

		func registerBpfModuleTypes(ctx android.RegistrationContext) {}

		func TestBpfSupportedAttrs(t *testing.T) {
		runBpfTestCase(t, Bp2buildTestCase{
		Description: "Bpf module only converts supported attributes",
		Filesystem: map[string]string{},
		Blueprint: `
		bpf {
		name: "bpfTestOut.o",
		srcs: ["bpfTestSrcOne.c",
		"bpfTestSrcTwo.c"],
		btf: true,
		cflags: ["-bpfCflagOne",
		"-bpfCflagTwo"],
		include_dirs: ["ia/ib/ic"],
		sub_dir: "sa/ab",
		}
		`,
		ExpectedBazelTargets: []string{
		MakeBazelTarget("bpf", "bpfTestOut.o", AttrNameToString{
		"absolute_includes": `["ia/ib/ic"]`,
		"btf": `True`,
		"copts": `[
		"-bpfCflagOne",
		"-bpfCflagTwo",
		]`,
		"srcs": `[
		"bpfTestSrcOne.c",
		"bpfTestSrcTwo.c",
		]`,
		"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
		}),
		},
		})
		}

bpf/bpf.go

+36 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import (
		"strings"

		"android/soong/android"
		"android/soong/bazel"

		"github.com/google/blueprint"
		"github.com/google/blueprint/proptools"
		@@ -93,6 +94,7 @@ type BpfProperties struct {

		type bpf struct {
		android.ModuleBase
		android.BazelModuleBase

		properties BpfProperties

		@@ -260,5 +262,39 @@ func BpfFactory() android.Module {
		module.AddProperties(&module.properties)

		android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
		android.InitBazelModule(module)
		return module
		}

		type bazelBpfAttributes struct {
		Srcs bazel.LabelListAttribute
		Copts bazel.StringListAttribute
		Absolute_includes bazel.StringListAttribute
		Btf *bool
		// TODO(b/249528391): Add support for sub_dir
		}

		// bpf bp2build converter
		func (b *bpf) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
		if ctx.ModuleType() != "bpf" {
		return
		}

		srcs := bazel.MakeLabelListAttribute(android.BazelLabelForModuleSrc(ctx, b.properties.Srcs))
		copts := bazel.MakeStringListAttribute(b.properties.Cflags)
		absolute_includes := bazel.MakeStringListAttribute(b.properties.Include_dirs)
		btf := b.properties.Btf

		attrs := bazelBpfAttributes{
		Srcs: srcs,
		Copts: copts,
		Absolute_includes: absolute_includes,
		Btf: btf,
		}
		props := bazel.BazelTargetModuleProperties{
		Rule_class: "bpf",
		Bzl_load_location: "//build/bazel/rules/bpf:bpf.bzl",
		}

		ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: b.Name()}, &attrs)
		}