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      1 // Copyright 2016 Google Inc. All rights reserved.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //     http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 package cc
     16 
     17 import (
     18 	"android/soong/android"
     19 )
     20 
     21 func init() {
     22 	android.RegisterModuleType("cc_prebuilt_library_shared", prebuiltSharedLibraryFactory)
     23 	android.RegisterModuleType("cc_prebuilt_library_static", prebuiltStaticLibraryFactory)
     24 	android.RegisterModuleType("cc_prebuilt_binary", prebuiltBinaryFactory)
     25 }
     26 
     27 type prebuiltLinkerInterface interface {
     28 	Name(string) string
     29 	prebuilt() *android.Prebuilt
     30 }
     31 
     32 type prebuiltLinker struct {
     33 	android.Prebuilt
     34 	properties struct {
     35 		Srcs []string `android:"arch_variant"`
     36 	}
     37 }
     38 
     39 func (p *prebuiltLinker) prebuilt() *android.Prebuilt {
     40 	return &p.Prebuilt
     41 }
     42 
     43 func (p *prebuiltLinker) PrebuiltSrcs() []string {
     44 	return p.properties.Srcs
     45 }
     46 
     47 type prebuiltLibraryLinker struct {
     48 	*libraryDecorator
     49 	prebuiltLinker
     50 }
     51 
     52 var _ prebuiltLinkerInterface = (*prebuiltLibraryLinker)(nil)
     53 
     54 func (p *prebuiltLibraryLinker) link(ctx ModuleContext,
     55 	flags Flags, deps PathDeps, objs Objects) android.Path {
     56 	// TODO(ccross): verify shared library dependencies
     57 	if len(p.properties.Srcs) > 0 {
     58 		p.libraryDecorator.exportIncludes(ctx, "-I")
     59 		p.libraryDecorator.reexportFlags(deps.ReexportedFlags)
     60 		p.libraryDecorator.reexportDeps(deps.ReexportedFlagsDeps)
     61 		// TODO(ccross): .toc optimization, stripping, packing
     62 		return p.Prebuilt.SingleSourcePath(ctx)
     63 	}
     64 
     65 	return nil
     66 }
     67 
     68 func prebuiltSharedLibraryFactory() android.Module {
     69 	module, _ := NewPrebuiltSharedLibrary(android.HostAndDeviceSupported)
     70 	return module.Init()
     71 }
     72 
     73 func NewPrebuiltSharedLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
     74 	module, library := NewLibrary(hod)
     75 	library.BuildOnlyShared()
     76 	module.compiler = nil
     77 
     78 	prebuilt := &prebuiltLibraryLinker{
     79 		libraryDecorator: library,
     80 	}
     81 	module.linker = prebuilt
     82 
     83 	module.AddProperties(&prebuilt.properties)
     84 
     85 	android.InitPrebuiltModule(module, &prebuilt.properties.Srcs)
     86 	return module, library
     87 }
     88 
     89 func prebuiltStaticLibraryFactory() android.Module {
     90 	module, _ := NewPrebuiltStaticLibrary(android.HostAndDeviceSupported)
     91 	return module.Init()
     92 }
     93 
     94 func NewPrebuiltStaticLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
     95 	module, library := NewLibrary(hod)
     96 	library.BuildOnlyStatic()
     97 	module.compiler = nil
     98 
     99 	prebuilt := &prebuiltLibraryLinker{
    100 		libraryDecorator: library,
    101 	}
    102 	module.linker = prebuilt
    103 
    104 	module.AddProperties(&prebuilt.properties)
    105 
    106 	android.InitPrebuiltModule(module, &prebuilt.properties.Srcs)
    107 	return module, library
    108 }
    109 
    110 type prebuiltBinaryLinker struct {
    111 	*binaryDecorator
    112 	prebuiltLinker
    113 }
    114 
    115 var _ prebuiltLinkerInterface = (*prebuiltBinaryLinker)(nil)
    116 
    117 func (p *prebuiltBinaryLinker) link(ctx ModuleContext,
    118 	flags Flags, deps PathDeps, objs Objects) android.Path {
    119 	// TODO(ccross): verify shared library dependencies
    120 	if len(p.properties.Srcs) > 0 {
    121 		// TODO(ccross): .toc optimization, stripping, packing
    122 
    123 		// Copy binaries to a name matching the final installed name
    124 		fileName := p.getStem(ctx) + flags.Toolchain.ExecutableSuffix()
    125 		outputFile := android.PathForModuleOut(ctx, fileName)
    126 
    127 		ctx.Build(pctx, android.BuildParams{
    128 			Rule:        android.CpExecutable,
    129 			Description: "prebuilt",
    130 			Output:      outputFile,
    131 			Input:       p.Prebuilt.SingleSourcePath(ctx),
    132 		})
    133 
    134 		return outputFile
    135 	}
    136 
    137 	return nil
    138 }
    139 
    140 func prebuiltBinaryFactory() android.Module {
    141 	module, _ := NewPrebuiltBinary(android.HostAndDeviceSupported)
    142 	return module.Init()
    143 }
    144 
    145 func NewPrebuiltBinary(hod android.HostOrDeviceSupported) (*Module, *binaryDecorator) {
    146 	module, binary := NewBinary(hod)
    147 	module.compiler = nil
    148 
    149 	prebuilt := &prebuiltBinaryLinker{
    150 		binaryDecorator: binary,
    151 	}
    152 	module.linker = prebuilt
    153 
    154 	module.AddProperties(&prebuilt.properties)
    155 
    156 	android.InitPrebuiltModule(module, &prebuilt.properties.Srcs)
    157 	return module, binary
    158 }
    159