1LOCAL_PATH:= $(call my-dir) 2 3# 4# libdl 5# 6 7include $(CLEAR_VARS) 8 9# NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from 10# libgcc.a are made static to libdl.so. This in turn ensures that libraries that 11# a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so 12# to provide those symbols, but will instead pull them from libgcc.a. Specifically, 13# we use this property to make sure libc.so has its own copy of the code from 14# libgcc.a it uses. 15# 16# DO NOT REMOVE --exclude-libs! 17 18LOCAL_LDFLAGS := -Wl,--exclude-libs=libgcc.a 19 20# for x86, exclude libgcc_eh.a for the same reasons as above 21ifeq ($(TARGET_ARCH),x86) 22LOCAL_LDFLAGS += -Wl,--exclude-libs=libgcc_eh.a 23endif 24 25LOCAL_SRC_FILES:= libdl.c 26 27LOCAL_MODULE:= libdl 28LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk 29 30# NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a 31# few symbols from libc. Using --no-undefined here results in having to link 32# against libc creating a circular dependency which is removed and we end up 33# with missing symbols. Since this library is just a bunch of stubs, we set 34# LOCAL_ALLOW_UNDEFINED_SYMBOLS to remove --no-undefined from the linker flags. 35LOCAL_ALLOW_UNDEFINED_SYMBOLS := true 36LOCAL_SYSTEM_SHARED_LIBRARIES := 37 38include $(BUILD_SHARED_LIBRARY) 39 40BUILD_DLTEST:=0 41ifeq ($(BUILD_DLTEST),1) 42 43# 44# dltest 45# 46 47include $(CLEAR_VARS) 48 49LOCAL_SRC_FILES:= dltest.c 50 51LOCAL_MODULE:= dltest 52LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk 53 54LOCAL_SHARED_LIBRARIES := libdl 55 56include $(BUILD_EXECUTABLE) 57 58endif 59