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
15package cc
16
17import (
18	"android/soong/android"
19)
20
21//
22// Device libraries shipped with gcc
23//
24
25func init() {
26	android.RegisterModuleType("toolchain_library", ToolchainLibraryFactory)
27}
28
29type toolchainLibraryProperties struct {
30	// the prebuilt toolchain library, as a path from the top of the source tree
31	Src *string `android:"arch_variant"`
32
33	// Repack the archive with only the selected objects.
34	Repack_objects_to_keep []string `android:"arch_variant"`
35}
36
37type toolchainLibraryDecorator struct {
38	*libraryDecorator
39
40	stripper
41
42	Properties toolchainLibraryProperties
43}
44
45func (*toolchainLibraryDecorator) linkerDeps(ctx DepsContext, deps Deps) Deps {
46	// toolchain libraries can't have any dependencies
47	return deps
48}
49
50func (library *toolchainLibraryDecorator) linkerProps() []interface{} {
51	var props []interface{}
52	props = append(props, library.libraryDecorator.linkerProps()...)
53	return append(props, &library.Properties, &library.stripper.StripProperties)
54}
55
56// toolchain_library is used internally by the build tool to link the specified
57// static library in src property to the device libraries that are shipped with
58// gcc.
59func ToolchainLibraryFactory() android.Module {
60	module, library := NewLibrary(android.HostAndDeviceSupported)
61	library.BuildOnlyStatic()
62	toolchainLibrary := &toolchainLibraryDecorator{
63		libraryDecorator: library,
64	}
65	module.compiler = toolchainLibrary
66	module.linker = toolchainLibrary
67	module.stl = nil
68	module.sanitize = nil
69	module.installer = nil
70	module.Properties.Sdk_version = StringPtr("current")
71	return module.Init()
72}
73
74func (library *toolchainLibraryDecorator) compile(ctx ModuleContext, flags Flags,
75	deps PathDeps) Objects {
76	return Objects{}
77}
78
79func (library *toolchainLibraryDecorator) link(ctx ModuleContext,
80	flags Flags, deps PathDeps, objs Objects) android.Path {
81
82	if library.Properties.Src == nil {
83		ctx.PropertyErrorf("src", "No library source specified")
84		return android.PathForSource(ctx, "")
85	}
86
87	srcPath := android.PathForSource(ctx, *library.Properties.Src)
88
89	if library.stripper.StripProperties.Strip.Keep_symbols_list != nil {
90		fileName := ctx.ModuleName() + staticLibraryExtension
91		outputFile := android.PathForModuleOut(ctx, fileName)
92		buildFlags := flagsToBuilderFlags(flags)
93		library.stripper.stripStaticLib(ctx, srcPath, outputFile, buildFlags)
94		return outputFile
95	}
96
97	if library.Properties.Repack_objects_to_keep != nil {
98		fileName := ctx.ModuleName() + staticLibraryExtension
99		outputFile := android.PathForModuleOut(ctx, fileName)
100		TransformArchiveRepack(ctx, srcPath, outputFile, library.Properties.Repack_objects_to_keep)
101
102		return outputFile
103	}
104
105	return srcPath
106}
107
108func (library *toolchainLibraryDecorator) nativeCoverage() bool {
109	return false
110}
111