8a49795df1
Move the logic from ctx.ExpandSources into android.PathsForModuleSrc and ctx.ExpandSource into android.PathForModuleSrc, and deprecate them. When combined with the pathDepsMutator this will let all properties that take source paths also take filegroups or genrule outputs, as long as they are tagged with `android:"path"`. Test: All soong tests Change-Id: I01625e76b5da19240e9649bf26a014eeeafcab8f
140 lines
3.8 KiB
Go
140 lines
3.8 KiB
Go
// Copyright (C) 2018 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package bpf
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import (
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"fmt"
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"io"
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"strings"
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"android/soong/android"
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_ "android/soong/cc/config"
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"github.com/google/blueprint"
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)
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func init() {
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android.RegisterModuleType("bpf", bpfFactory)
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pctx.Import("android/soong/cc/config")
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}
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var (
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pctx = android.NewPackageContext("android/soong/bpf")
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cc = pctx.AndroidGomaStaticRule("cc",
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blueprint.RuleParams{
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Command: "$ccCmd --target=bpf -c $cFlags -MD -MF ${out}.d -o $out $in",
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CommandDeps: []string{"$ccCmd"},
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},
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"ccCmd", "cFlags")
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)
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type BpfProperties struct {
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Srcs []string `android:"path"`
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Cflags []string
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Include_dirs []string
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}
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type bpf struct {
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android.ModuleBase
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properties BpfProperties
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objs android.Paths
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}
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func (bpf *bpf) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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cflags := []string{
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"-nostdlibinc",
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"-O2",
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"-isystem bionic/libc/include",
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"-isystem bionic/libc/kernel/uapi",
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// The architecture doesn't matter here, but asm/types.h is included by linux/types.h.
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"-isystem bionic/libc/kernel/uapi/asm-arm64",
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"-isystem bionic/libc/kernel/android/uapi",
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"-I system/bpf/progs/include",
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"-I " + ctx.ModuleDir(),
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}
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for _, dir := range android.PathsForSource(ctx, bpf.properties.Include_dirs) {
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cflags = append(cflags, "-I "+dir.String())
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}
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cflags = append(cflags, bpf.properties.Cflags...)
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srcs := android.PathsForModuleSrc(ctx, bpf.properties.Srcs)
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for _, src := range srcs {
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obj := android.ObjPathWithExt(ctx, "", src, "o")
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ctx.Build(pctx, android.BuildParams{
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Rule: cc,
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Input: src,
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Output: obj,
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Args: map[string]string{
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"cFlags": strings.Join(cflags, " "),
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"ccCmd": "${config.ClangBin}/clang",
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},
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})
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bpf.objs = append(bpf.objs, obj)
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}
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}
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func (bpf *bpf) AndroidMk() android.AndroidMkData {
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return android.AndroidMkData{
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Custom: func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
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var names []string
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fmt.Fprintln(w)
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fmt.Fprintln(w, "LOCAL_PATH :=", moduleDir)
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fmt.Fprintln(w)
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for _, obj := range bpf.objs {
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objName := name + "_" + obj.Base()
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names = append(names, objName)
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fmt.Fprintln(w, "include $(CLEAR_VARS)")
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fmt.Fprintln(w, "LOCAL_MODULE := ", objName)
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fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", obj.String())
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fmt.Fprintln(w, "LOCAL_MODULE_STEM :=", obj.Base())
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fmt.Fprintln(w, "LOCAL_MODULE_CLASS := ETC")
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fmt.Fprintln(w, "LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/bpf")
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fmt.Fprintln(w, "include $(BUILD_PREBUILT)")
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fmt.Fprintln(w)
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}
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fmt.Fprintln(w, "include $(CLEAR_VARS)")
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fmt.Fprintln(w, "LOCAL_MODULE := ", name)
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fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES :=", strings.Join(names, " "))
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fmt.Fprintln(w, "include $(BUILD_PHONY_PACKAGE)")
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},
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}
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}
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// Implements SourceFileProducer interface so that the obj output can be used in the data property
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// of other modules.
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func (bpf *bpf) Srcs() android.Paths {
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return bpf.objs
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}
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var _ android.SourceFileProducer = (*bpf)(nil)
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func bpfFactory() android.Module {
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module := &bpf{}
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module.AddProperties(&module.properties)
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android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
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return module
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}
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