1# Copyright 2009 The Android Open Source Project
2
3LOCAL_PATH := $(call my-dir)
4
5updater_src_files := \
6	install.c \
7	updater.c
8
9#
10# Build a statically-linked binary to include in OTA packages
11#
12include $(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.)
17LOCAL_MODULE_TAGS := eng
18
19LOCAL_SRC_FILES := $(updater_src_files)
20
21ifeq ($(TARGET_USERIMAGES_USE_EXT4), true)
22LOCAL_CFLAGS += -DUSE_EXT4
23LOCAL_C_INCLUDES += system/extras/ext4_utils
24LOCAL_STATIC_LIBRARIES += \
25    libext4_utils_static \
26    libsparse_static \
27    libz
28endif
29
30ifeq ($(HAVE_SELINUX), true)
31LOCAL_C_INCLUDES += external/libselinux/include
32LOCAL_STATIC_LIBRARIES += libselinux
33LOCAL_CFLAGS += -DHAVE_SELINUX
34endif # HAVE_SELINUX
35
36LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS)
37LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz
38LOCAL_STATIC_LIBRARIES += libmincrypt libbz
39LOCAL_STATIC_LIBRARIES += libminelf
40LOCAL_STATIC_LIBRARIES += libcutils libstdc++ libc
41LOCAL_C_INCLUDES += $(LOCAL_PATH)/..
42
43# Each library in TARGET_RECOVERY_UPDATER_LIBS should have a function
44# named "Register_<libname>()".  Here we emit a little C function that
45# gets #included by updater.c.  It calls all those registration
46# functions.
47
48# Devices can also add libraries to TARGET_RECOVERY_UPDATER_EXTRA_LIBS.
49# These libs are also linked in with updater, but we don't try to call
50# any sort of registration function for these.  Use this variable for
51# any subsidiary static libraries required for your registered
52# extension libs.
53
54inc := $(call intermediates-dir-for,PACKAGING,updater_extensions)/register.inc
55
56# Encode the value of TARGET_RECOVERY_UPDATER_LIBS into the filename of the dependency.
57# So if TARGET_RECOVERY_UPDATER_LIBS is changed, a new dependency file will be generated.
58# Note that we have to remove any existing depency files before creating new one,
59# so no obsolete dependecy file gets used if you switch back to an old value.
60inc_dep_file := $(inc).dep.$(subst $(space),-,$(sort $(TARGET_RECOVERY_UPDATER_LIBS)))
61$(inc_dep_file): stem := $(inc).dep
62$(inc_dep_file) :
63	$(hide) mkdir -p $(dir $@)
64	$(hide) rm -f $(stem).*
65	$(hide) touch $@
66
67$(inc) : libs := $(TARGET_RECOVERY_UPDATER_LIBS)
68$(inc) : $(inc_dep_file)
69	$(hide) mkdir -p $(dir $@)
70	$(hide) echo "" > $@
71	$(hide) $(foreach lib,$(libs),echo "extern void Register_$(lib)(void);" >> $@;)
72	$(hide) echo "void RegisterDeviceExtensions() {" >> $@
73	$(hide) $(foreach lib,$(libs),echo "  Register_$(lib)();" >> $@;)
74	$(hide) echo "}" >> $@
75
76$(call intermediates-dir-for,EXECUTABLES,updater)/updater.o : $(inc)
77LOCAL_C_INCLUDES += $(dir $(inc))
78
79inc :=
80inc_dep_file :=
81
82LOCAL_MODULE := updater
83
84LOCAL_FORCE_STATIC_EXECUTABLE := true
85
86include $(BUILD_EXECUTABLE)
87