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      1 # Copyright 2009 The Android Open Source Project
      2 
      3 LOCAL_PATH := $(call my-dir)
      4 
      5 updater_src_files := \
      6 	install.c \
      7 	updater.c
      8 
      9 #
     10 # Build a statically-linked binary to include in OTA packages
     11 #
     12 include $(CLEAR_VARS)
     13 
     14 # Build only in eng, so we don't end up with a copy of this in /system
     15 # on user builds.  (TODO: find a better way to build device binaries
     16 # needed only for OTA packages.)
     17 LOCAL_MODULE_TAGS := eng
     18 
     19 LOCAL_SRC_FILES := $(updater_src_files)
     20 
     21 ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
     22 LOCAL_CFLAGS += -DUSE_EXT4
     23 LOCAL_C_INCLUDES += system/extras/ext4_utils
     24 LOCAL_STATIC_LIBRARIES += \
     25     libext4_utils_static \
     26     libsparse_static \
     27     libz
     28 endif
     29 
     30 LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
     31 LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz
     32 LOCAL_STATIC_LIBRARIES += libmincrypt libbz
     33 LOCAL_STATIC_LIBRARIES += libminelf
     34 LOCAL_STATIC_LIBRARIES += libcutils liblog libstdc++ libc
     35 LOCAL_STATIC_LIBRARIES += libselinux
     36 LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
     37 
     38 # Each library in TARGET_RECOVERY_UPDATER_LIBS should have a function
     39 # named "Register_<libname>()".  Here we emit a little C function that
     40 # gets #included by updater.c.  It calls all those registration
     41 # functions.
     42 
     43 # Devices can also add libraries to TARGET_RECOVERY_UPDATER_EXTRA_LIBS.
     44 # These libs are also linked in with updater, but we don't try to call
     45 # any sort of registration function for these.  Use this variable for
     46 # any subsidiary static libraries required for your registered
     47 # extension libs.
     48 
     49 inc := $(call intermediates-dir-for,PACKAGING,updater_extensions)/register.inc
     50 
     51 # Encode the value of TARGET_RECOVERY_UPDATER_LIBS into the filename of the dependency.
     52 # So if TARGET_RECOVERY_UPDATER_LIBS is changed, a new dependency file will be generated.
     53 # Note that we have to remove any existing depency files before creating new one,
     54 # so no obsolete dependecy file gets used if you switch back to an old value.
     55 inc_dep_file := $(inc).dep.$(subst $(space),-,$(sort $(TARGET_RECOVERY_UPDATER_LIBS)))
     56 $(inc_dep_file): stem := $(inc).dep
     57 $(inc_dep_file) :
     58 	$(hide) mkdir -p $(dir $@)
     59 	$(hide) rm -f $(stem).*
     60 	$(hide) touch $@
     61 
     62 $(inc) : libs := $(TARGET_RECOVERY_UPDATER_LIBS)
     63 $(inc) : $(inc_dep_file)
     64 	$(hide) mkdir -p $(dir $@)
     65 	$(hide) echo "" > $@
     66 	$(hide) $(foreach lib,$(libs),echo "extern void Register_$(lib)(void);" >> $@;)
     67 	$(hide) echo "void RegisterDeviceExtensions() {" >> $@
     68 	$(hide) $(foreach lib,$(libs),echo "  Register_$(lib)();" >> $@;)
     69 	$(hide) echo "}" >> $@
     70 
     71 $(call intermediates-dir-for,EXECUTABLES,updater)/updater.o : $(inc)
     72 LOCAL_C_INCLUDES += $(dir $(inc))
     73 
     74 inc :=
     75 inc_dep_file :=
     76 
     77 LOCAL_MODULE := updater
     78 
     79 LOCAL_FORCE_STATIC_EXECUTABLE := true
     80 
     81 include $(BUILD_EXECUTABLE)
     82