add device extension mechanism to updater
Allow devices (in BoardConfig.mk) to define additional static
libraries to be linked in to updater, to make device-specific
functions available in edify scripts. Modify the updater makefile to
arrange for device libraries to register their edify functions.
diff --git a/updater/updater.c b/updater/updater.c
index 31d93ae..1aa277c 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -23,6 +23,11 @@
#include "install.h"
#include "minzip/Zip.h"
+// Generated by the makefile, this function defines the
+// RegisterDeviceExtensions() function, which calls all the
+// registration functions for device-specific extensions.
+#include "register.inc"
+
// Where in the package we expect to find the edify script to execute.
// (Note it's "updateR-script", not the older "update-script".)
#define SCRIPT_NAME "META-INF/com/google/android/updater-script"
@@ -76,6 +81,7 @@
RegisterBuiltins();
RegisterInstallFunctions();
+ RegisterDeviceExtensions();
FinishRegistration();
// Parse the script.