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apex: Restrict usage of "use_vendor"

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When use_vendor is used, native modules are built with
__ANDROID_VNDK__ and __ANDROID_APEX__, which may cause
compatibility issues. (e.g. libbinder)

Even though libbinder restricts its availability via
'apex_available' property and relies on yet another macro
__ANDROID_APEX_<NAME>__, we restrict usage of "use_vendor:" from
other APEX modules to avoid similar problems.

Bug: 142684427
Test: m -j
Change-Id: Ibc781de2efcd20cb6688a183b08e908a8a6e2593
This commit is contained in:
Jooyung Han
2019-11-01 03:14:38 +09:00
parent 61eb8aaea4
commit dc782449b8
2 changed files with 73 additions and 4 deletions
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32
apex/apex.go
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@@ -333,6 +333,34 @@ func apexUsesMutator(mctx android.BottomUpMutatorContext) {
}
}
var (
useVendorWhitelistKey = android.NewOnceKey("useVendorWhitelist")
)
// useVendorWhitelist returns the list of APEXes which are allowed to use_vendor.
// When use_vendor is used, native modules are built with __ANDROID_VNDK__ and __ANDROID_APEX__,
// which may cause compatibility issues. (e.g. libbinder)
// Even though libbinder restricts its availability via 'apex_available' property and relies on
// yet another macro __ANDROID_APEX_<NAME>__, we restrict usage of "use_vendor:" from other APEX modules
// to avoid similar problems.
func useVendorWhitelist(config android.Config) []string {
return config.Once(useVendorWhitelistKey, func() interface{} {
return []string{
// swcodec uses "vendor" variants for smaller size
"com.android.media.swcodec",
"test_com.android.media.swcodec",
}
}).([]string)
}
// setUseVendorWhitelistForTest overrides useVendorWhitelist and must be
// called before the first call to useVendorWhitelist()
func setUseVendorWhitelistForTest(config android.Config, whitelist []string) {
config.Once(useVendorWhitelistKey, func() interface{} {
return whitelist
})
}
type apexNativeDependencies struct {
// List of native libraries
Native_shared_libs []string
@@ -661,6 +689,10 @@ func (a *apexBundle) combineProperties(ctx android.BottomUpMutatorContext) {
}
func (a *apexBundle) DepsMutator(ctx android.BottomUpMutatorContext) {
if proptools.Bool(a.properties.Use_vendor) && !android.InList(a.Name(), useVendorWhitelist(ctx.Config())) {
ctx.PropertyErrorf("use_vendor", "not allowed to set use_vendor: true")
}
targets := ctx.MultiTargets()
config := ctx.DeviceConfig()