72 lines
1.9 KiB
Makefile
72 lines
1.9 KiB
Makefile
LOCAL_PATH:= $(call my-dir)
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#
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# libdl
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#
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include $(CLEAR_VARS)
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# NOTE: --exclude-libs=libgcc.a makes sure that any symbols libdl.so pulls from
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# libgcc.a are made static to libdl.so. This in turn ensures that libraries that
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# a) pull symbols from libgcc.a and b) depend on libdl.so will not rely on libdl.so
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# to provide those symbols, but will instead pull them from libgcc.a. Specifically,
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# we use this property to make sure libc.so has its own copy of the code from
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# libgcc.a it uses.
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#
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# DO NOT REMOVE --exclude-libs!
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LOCAL_LDFLAGS := -Wl,--exclude-libs=libgcc.a
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# for x86, exclude libgcc_eh.a for the same reasons as above
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ifeq ($(TARGET_ARCH),x86)
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LOCAL_LDFLAGS += -Wl,--exclude-libs=libgcc_eh.a
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endif
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LOCAL_SRC_FILES:= libdl.c
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LOCAL_MODULE:= libdl
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# NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a
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# few symbols from libc. Using --no-undefined here results in having to link
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# against libc creating a circular dependency which is removed and we end up
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# with missing symbols. Since this library is just a bunch of stubs, we set
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# LOCAL_ALLOW_UNDEFINED_SYMBOLS to remove --no-undefined from the linker flags.
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LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
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LOCAL_SYSTEM_SHARED_LIBRARIES :=
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ifeq ($(TARGET_ARCH),sh)
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# for SuperH, additional code is necessary to handle .ctors section.
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GEN_SOBEGIN := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o
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$(GEN_SOBEGIN): $(LOCAL_PATH)/arch-sh/sobegin.S
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@mkdir -p $(dir $@)
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$(TARGET_CC) -o $@ -c $<
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GEN_SOEND := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o
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$(GEN_SOEND): $(LOCAL_PATH)/arch-sh/soend.S
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@mkdir -p $(dir $@)
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$(TARGET_CC) -o $@ -c $<
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LOCAL_ADDITIONAL_DEPENDENCIES := $(GEN_SOBEGIN) $(GEN_SOEND)
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endif
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include $(BUILD_SHARED_LIBRARY)
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BUILD_DLTEST:=0
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ifeq ($(BUILD_DLTEST),1)
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#
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# dltest
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#
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES:= dltest.c
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LOCAL_MODULE:= dltest
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LOCAL_SHARED_LIBRARIES := libdl
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include $(BUILD_EXECUTABLE)
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endif
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