binder: add openDeclaredPassthroughHal()
It handles dlopen()ing a declared native hal. This can replace
android_load_sphal_library to load declared native instance. The new API
also supports when instances are from APEX.
Bug: 316051788
Test: atest servicemanager_test
Test: atest vts_treble_vintf_vendor_test
Change-Id: I95b752253e0b550d38f0543ff56134d38d838855
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index fe566fc..39573ec 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -40,6 +40,11 @@
#include "ServiceManagerHost.h"
#endif
+#if defined(__ANDROID__) && !defined(__ANDROID_RECOVERY__) && !defined(__ANDROID_NATIVE_BRIDGE__)
+#include <android/apexsupport.h>
+#include <vndksupport/linker.h>
+#endif
+
#include "Static.h"
namespace android {
@@ -259,6 +264,27 @@
}
}
+void* openDeclaredPassthroughHal(const String16& interface, const String16& instance, int flag) {
+#if defined(__ANDROID__) && !defined(__ANDROID_RECOVERY__) && !defined(__ANDROID_NATIVE_BRIDGE__)
+ sp<IServiceManager> sm = defaultServiceManager();
+ String16 name = interface + String16("/") + instance;
+ if (!sm->isDeclared(name)) {
+ return nullptr;
+ }
+ String16 libraryName = interface + String16(".") + instance + String16(".so");
+ if (auto updatableViaApex = sm->updatableViaApex(name); updatableViaApex.has_value()) {
+ return AApexSupport_loadLibrary(String8(libraryName).c_str(),
+ String8(*updatableViaApex).c_str(), flag);
+ }
+ return android_load_sphal_library(String8(libraryName).c_str(), flag);
+#else
+ (void)interface;
+ (void)instance;
+ (void)flag;
+ return nullptr;
+#endif
+}
+
#endif //__ANDROID_VNDK__
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