diff options
| -rw-r--r-- | updater/Android.mk | 38 | ||||
| -rw-r--r-- | updater/updater.c | 6 |
2 files changed, 43 insertions, 1 deletions
diff --git a/updater/Android.mk b/updater/Android.mk index 1159d7bb8..71a9a23f6 100644 --- a/updater/Android.mk +++ b/updater/Android.mk @@ -13,11 +13,47 @@ include $(CLEAR_VARS) 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 diff --git a/updater/updater.c b/updater/updater.c index 31d93ae96..1aa277c7f 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 @@ int main(int argc, char** argv) { RegisterBuiltins(); RegisterInstallFunctions(); + RegisterDeviceExtensions(); FinishRegistration(); // Parse the script. |