1 LOCAL_PATH:= $(call my-dir) 2 3 # 4 # libdl 5 # 6 7 include $(CLEAR_VARS) 8 9 # NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from 10 # libgcc.a are made static to libdl.so. This in turn ensures that libraries that 11 # a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so 12 # to provide those symbols, but will instead pull them from libgcc.a. Specifically, 13 # we use this property to make sure libc.so has its own copy of the code from 14 # libgcc.a it uses. 15 # 16 # DO NOT REMOVE --exclude-libs! 17 18 LOCAL_LDFLAGS := -Wl,--exclude-libs=libgcc.a 19 20 # for x86, exclude libgcc_eh.a for the same reasons as above 21 ifneq ($(TARGET_SIMULATOR),true) 22 ifeq ($(TARGET_ARCH),x86) 23 LOCAL_LDFLAGS += -Wl,--exclude-libs=libgcc_eh.a 24 endif 25 endif 26 27 LOCAL_SRC_FILES:= libdl.c 28 29 LOCAL_MODULE:= libdl 30 31 # NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a 32 # few symbols from libc. Using --no-undefined here results in having to link 33 # against libc creating a circular dependency which is removed and we end up 34 # with missing symbols. Since this library is just a bunch of stubs, we set 35 # LOCAL_ALLOW_UNDEFINED_SYMBOLS to remove --no-undefined from the linker flags. 36 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true 37 LOCAL_SYSTEM_SHARED_LIBRARIES := 38 39 ifeq ($(TARGET_ARCH),sh) 40 # for SuperH, additional code is necessary to handle .ctors section. 41 GEN_SOBEGIN := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o 42 $(GEN_SOBEGIN): $(LOCAL_PATH)/arch-sh/sobegin.S 43 @mkdir -p $(dir $@) 44 $(TARGET_CC) -o $@ -c $< 45 46 GEN_SOEND := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o 47 $(GEN_SOEND): $(LOCAL_PATH)/arch-sh/soend.S 48 @mkdir -p $(dir $@) 49 $(TARGET_CC) -o $@ -c $< 50 51 LOCAL_ADDITIONAL_DEPENDENCIES := $(GEN_SOBEGIN) $(GEN_SOEND) 52 endif 53 54 include $(BUILD_SHARED_LIBRARY) 55 56 BUILD_DLTEST:=0 57 ifeq ($(BUILD_DLTEST),1) 58 59 # 60 # dltest 61 # 62 63 include $(CLEAR_VARS) 64 65 LOCAL_SRC_FILES:= dltest.c 66 67 LOCAL_MODULE:= dltest 68 69 LOCAL_SHARED_LIBRARIES := libdl 70 71 include $(BUILD_EXECUTABLE) 72 73 endif 74