Export dex implementation jars from prebuilt_apex
Dexpreopt and boot jars package check all require access to dex
implementation jars created for java_library and java_sdk_library. They
were available when building from source but not when building from
prebuilts, even though they are embedded within the .apex files that
are referenced from prebuilt_apex.
This changes adds support to prebuilt_apex to export the dex
implementation jars and updates java_import to use those exported dex
implementation jars.
In a source build dexpreopt/boot jars package check access the apex (or
platform) specific variant of a java_library, e.g. core-oj, from which
it retrieves the dex implementation jar path.
After this change in a prebuilt build dexpreopt/boot jars package check
behave in the same way except in this case they retrieve the dex
implementation jar path from the apex (or platform) specific variant of
the java_import, e.g. core-oj.
The work to export files from a `.apex` file for use by other modules
is performed by a new `deapexer` module type. It is not used directly
in an `Android.bp` file but instead is created implicitly by
`prebuilt_apex`,
In order to do that this contains the following changes:
* Adds a new `dexapexer` module type to handle the exporting of files
from the `.apex` file.
* Adds an exported_java_libs property to prebuilt_apex to specify the
set of libraries whose dex implementation jars need exporting.
* Creates apex specific variants of the libraries listed in the
exported_java_libs property.
* Adds the set of exported files to the ApexInfo to make them available
to the apex specific variants.
* Prevents the prebuilt_apex variants from being merged together as
they will not be compatible.
* Modifies java_import to use the exported file for variants of a
prebuilt_apex.
* Adds a ninja rule to unpack (using deapexer) the contents of the
prebuilt_apex's apex file, verify that the required files are present
and make them available as outputs for other rules to use.
* Some minor refactorings to support these changes.
* Adds tests to cover prebuilt only, prebuilt with source preferred,
and prebuilt preferred with source.
Test: m nothing
Bug: 171061220
Change-Id: Ic9bed81fb65b92f0d59f64c0bce168a9ed44cfac
diff --git a/android/apex.go b/android/apex.go
index 47d14cc..31c62e9 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -64,6 +64,14 @@
// module is part of. The ApexContents gives information about which modules the apexBundle
// has and whether a module became part of the apexBundle via a direct dependency or not.
ApexContents []*ApexContents
+
+ // True if this is for a prebuilt_apex.
+ //
+ // If true then this will customize the apex processing to make it suitable for handling
+ // prebuilt_apex, e.g. it will prevent ApexInfos from being merged together.
+ //
+ // See Prebuilt.ApexInfoMutator for more information.
+ ForPrebuiltApex bool
}
var ApexInfoProvider = blueprint.NewMutatorProvider(ApexInfo{}, "apex")
@@ -412,6 +420,16 @@
sort.Sort(byApexName(apexInfos))
seen := make(map[string]int)
for _, apexInfo := range apexInfos {
+ // If this is for a prebuilt apex then use the actual name of the apex variation to prevent this
+ // from being merged with other ApexInfo. See Prebuilt.ApexInfoMutator for more information.
+ if apexInfo.ForPrebuiltApex {
+ merged = append(merged, apexInfo)
+ continue
+ }
+
+ // Merge the ApexInfo together. If a compatible ApexInfo exists then merge the information from
+ // this one into it, otherwise create a new merged ApexInfo from this one and save it away so
+ // other ApexInfo instances can be merged into it.
apexName := apexInfo.ApexVariationName
mergedName := apexInfo.mergedName(ctx)
if index, exists := seen[mergedName]; exists {
@@ -582,10 +600,14 @@
// apexContents, and modules in that apex have a provider containing the apexContents of each
// apexBundle they are part of.
type ApexContents struct {
- // map from a module name to its membership to this apexBUndle
+ // map from a module name to its membership in this apexBundle
contents map[string]ApexMembership
}
+// NewApexContents creates and initializes an ApexContents that is suitable
+// for use with an apex module.
+// * contents is a map from a module name to information about its membership within
+// the apex.
func NewApexContents(contents map[string]ApexMembership) *ApexContents {
return &ApexContents{
contents: contents,