1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Copyright (C) 2021 The Android Open Source Project
//
// 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 filesystem
import (
"android/soong/android"
"android/soong/cc"
"android/soong/linkerconfig"
"strings"
"github.com/google/blueprint/proptools"
)
type systemImage struct {
filesystem
}
var _ filesystemBuilder = (*systemImage)(nil)
// android_system_image is a specialization of android_filesystem for the 'system' partition.
// Currently, the only difference is the inclusion of linker.config.pb file which specifies
// the provided and the required libraries to and from APEXes.
func SystemImageFactory() android.Module {
module := &systemImage{}
module.filesystemBuilder = module
initFilesystemModule(module, &module.filesystem)
return module
}
func (s systemImage) FsProps() FilesystemProperties {
return s.filesystem.properties
}
func (s *systemImage) BuildLinkerConfigFile(
ctx android.ModuleContext,
builder *android.RuleBuilder,
rebasedDir android.OutputPath,
fullInstallPaths *[]FullInstallPathInfo,
) {
if !proptools.Bool(s.filesystem.properties.Linker_config.Gen_linker_config) {
return
}
output := rebasedDir.Join(ctx, "etc", "linker.config.pb")
if s.filesystem.properties.Linker_config.Linker_config_srcs != nil {
provideModules, requireModules := s.getLibsForLinkerConfig(ctx)
intermediateOutput := android.PathForModuleOut(ctx, "linker.config.pb")
linkerconfig.BuildLinkerConfig(ctx, android.PathsForModuleSrc(ctx, s.filesystem.properties.Linker_config.Linker_config_srcs), provideModules, requireModules, intermediateOutput)
builder.Command().Text("cp").Input(intermediateOutput).Output(output)
*fullInstallPaths = append(*fullInstallPaths, FullInstallPathInfo{
FullInstallPath: android.PathForModuleInPartitionInstall(ctx, s.PartitionType(), "etc", "linker.config.pb"),
SourcePath: intermediateOutput,
})
} else {
// TODO: This branch is the logic that make uses for the linker config file, which is
// different than linkerconfig.BuildLinkerConfig used above. Keeping both branches for now
// because microdroid uses the other method and is in theory happy with it. But we should
// consider deduping them.
stubLibraries := cc.StubLibrariesFile(ctx)
llndkMovedToApexLibraries := cc.MovedToApexLlndkLibrariesFile(ctx)
outputStep1 := android.PathForModuleOut(ctx, "linker.config.pb.step1")
builder.Command().
BuiltTool("conv_linker_config").
Text("proto --force").
FlagWithInput("-s ", android.PathForSource(ctx, "system/core/rootdir/etc/linker.config.json")).
FlagWithOutput("-o ", outputStep1)
builder.Temporary(outputStep1)
builder.Command().
BuiltTool("conv_linker_config").
Text("systemprovide").
FlagWithInput("--source ", outputStep1).
FlagWithArg("--output ", output.String()).
Textf(`--value "$(cat %s)"`, stubLibraries).
Implicit(stubLibraries).
FlagWithArg("--system ", rebasedDir.String())
builder.Command().
BuiltTool("conv_linker_config").
Text("append").
FlagWithArg("--source ", output.String()).
FlagWithOutput("--output ", output).
FlagWithArg("--key ", "requireLibs").
Textf(`--value "$(cat %s)"`, llndkMovedToApexLibraries).
Implicit(llndkMovedToApexLibraries)
// TODO: Make also supports adding an extra append command with PRODUCT_EXTRA_STUB_LIBRARIES,
// but that variable appears to have no usages.
*fullInstallPaths = append(*fullInstallPaths, FullInstallPathInfo{
FullInstallPath: android.PathForModuleInPartitionInstall(ctx, s.PartitionType(), "etc", "linker.config.pb"),
SourcePath: output,
})
}
s.appendToEntry(ctx, output)
}
// Filter the result of GatherPackagingSpecs to discard items targeting outside "system" / "root"
// partition. Note that "apex" module installs its contents to "apex"(fake partition) as well
// for symbol lookup by imitating "activated" paths.
func (s *systemImage) FilterPackagingSpec(ps android.PackagingSpec) bool {
return !ps.SkipInstall() &&
(ps.Partition() == "system" || ps.Partition() == "root" ||
strings.HasPrefix(ps.Partition(), "system/"))
}
func (s *systemImage) ShouldUseVintfFragmentModuleOnly() bool {
return true
}
|