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