android_system_image only packages "system" items
android_system_image filers packaging items installed outside "system"
partition.
Some packaging items install related items to different partitions but
putting them altogether to android_system_image doesn't make sense.
(android_system_image is suppposed to be "system" partition)
To be specific, this filters out "apex" partition items. "apex"
partition is used by APEX installation to install APEX contents to paths
similar to activated paths on device so that symbol lookup works well
with APEX contents.
Bug: 225121718
Test: atest MicrodroidHostTestCases
Test: debugfs <intermediate>/microdroid.img -R 'ls system'
shows no "com.android.runtime"
Change-Id: Ibc3d85ead2fda99e231132ce8ab9ccf1cc9317b7
diff --git a/filesystem/filesystem.go b/filesystem/filesystem.go
index 9cf7bbd..ccf9e9d 100644
--- a/filesystem/filesystem.go
+++ b/filesystem/filesystem.go
@@ -43,8 +43,14 @@
// Function that builds extra files under the root directory and returns the files
buildExtraFiles func(ctx android.ModuleContext, root android.OutputPath) android.OutputPaths
+ // Function that filters PackagingSpecs returned by PackagingBase.GatherPackagingSpecs()
+ filterPackagingSpecs func(specs map[string]android.PackagingSpec)
+
output android.OutputPath
installDir android.InstallPath
+
+ // For testing. Keeps the result of CopyDepsToZip()
+ entries []string
}
type symlinkDefinition struct {
@@ -226,7 +232,7 @@
func (f *filesystem) buildImageUsingBuildImage(ctx android.ModuleContext) android.OutputPath {
depsZipFile := android.PathForModuleOut(ctx, "deps.zip").OutputPath
- f.CopyDepsToZip(ctx, f.GatherPackagingSpecs(ctx), depsZipFile)
+ f.entries = f.CopyDepsToZip(ctx, f.gatherFilteredPackagingSpecs(ctx), depsZipFile)
builder := android.NewRuleBuilder(pctx, ctx)
depsBase := proptools.StringDefault(f.properties.Base_dir, ".")
@@ -345,7 +351,7 @@
}
depsZipFile := android.PathForModuleOut(ctx, "deps.zip").OutputPath
- f.CopyDepsToZip(ctx, f.GatherPackagingSpecs(ctx), depsZipFile)
+ f.entries = f.CopyDepsToZip(ctx, f.gatherFilteredPackagingSpecs(ctx), depsZipFile)
builder := android.NewRuleBuilder(pctx, ctx)
depsBase := proptools.StringDefault(f.properties.Base_dir, ".")
@@ -434,3 +440,14 @@
}
return nil
}
+
+// Filter the result of GatherPackagingSpecs to discard items targeting outside "system" partition.
+// Note that "apex" module installs its contents to "apex"(fake partition) as well
+// for symbol lookup by imitating "activated" paths.
+func (f *filesystem) gatherFilteredPackagingSpecs(ctx android.ModuleContext) map[string]android.PackagingSpec {
+ specs := f.PackagingBase.GatherPackagingSpecs(ctx)
+ if f.filterPackagingSpecs != nil {
+ f.filterPackagingSpecs(specs)
+ }
+ return specs
+}
