summaryrefslogtreecommitdiffstats
path: root/updater/Android.mk
diff options
context:
space:
mode:
Diffstat (limited to 'updater/Android.mk')
-rw-r--r--updater/Android.mk38
1 files changed, 37 insertions, 1 deletions
diff --git a/updater/Android.mk b/updater/Android.mk
index 897b9d74c..d4a4e332d 100644
--- a/updater/Android.mk
+++ b/updater/Android.mk
@@ -18,11 +18,47 @@ LOCAL_MODULE_TAGS := eng
LOCAL_SRC_FILES := $(updater_src_files)
-LOCAL_STATIC_LIBRARIES := libapplypatch libedify libmtdutils libminzip libz
+LOCAL_STATIC_LIBRARIES := $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
+LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz
LOCAL_STATIC_LIBRARIES += libmincrypt libbz
LOCAL_STATIC_LIBRARIES += libcutils libstdc++ libc
LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
+# Each library in TARGET_RECOVERY_UPDATER_LIBS should have a function
+# named "Register_<libname>()". Here we emit a little C function that
+# gets #included by updater.c. It calls all those registration
+# functions.
+
+# Devices can also add libraries to TARGET_RECOVERY_UPDATER_EXTRA_LIBS.
+# These libs are also linked in with updater, but we don't try to call
+# any sort of registration function for these. Use this variable for
+# any subsidiary static libraries required for your registered
+# extension libs.
+
+inc := $(call intermediates-dir-for,PACKAGING,updater_extensions)/register.inc
+
+# During the first pass of reading the makefiles, we dump the list of
+# extension libs to a temp file, then copy that to the ".list" file if
+# it is different than the existing .list (if any). The register.inc
+# file then uses the .list as a prerequisite, so it is only rebuilt
+# (and updater.o recompiled) when the list of extension libs changes.
+
+junk := $(shell mkdir -p $(dir $(inc));\
+ echo $(TARGET_RECOVERY_UPDATER_LIBS) > $(inc).temp;\
+ diff -q $(inc).temp $(inc).list || cp -f $(inc).temp $(inc).list)
+
+$(inc) : libs := $(TARGET_RECOVERY_UPDATER_LIBS)
+$(inc) : $(inc).list
+ $(hide) mkdir -p $(dir $@)
+ $(hide) echo "" > $@
+ $(hide) $(foreach lib,$(libs),echo "extern void Register_$(lib)(void);" >> $@)
+ $(hide) echo "void RegisterDeviceExtensions() {" >> $@
+ $(hide) $(foreach lib,$(libs),echo " Register_$(lib)();" >> $@)
+ $(hide) echo "}" >> $@
+
+$(call intermediates-dir-for,EXECUTABLES,updater)/updater.o : $(inc)
+LOCAL_C_INCLUDES += $(dir $(inc))
+
LOCAL_MODULE := updater
LOCAL_FORCE_STATIC_EXECUTABLE := true