1 # Check the correctness of the prebuilt ELF files 2 # 3 # This check ensures that DT_SONAME matches with the filename, DT_NEEDED 4 # matches the shared libraries specified in LOCAL_SHARED_LIBRARIES, and all 5 # undefined symbols in the prebuilt binary can be found in one of the shared 6 # libraries specified in LOCAL_SHARED_LIBRARIES. 7 # 8 # Inputs: 9 # - LOCAL_ALLOW_UNDEFINED_SYMBOLS 10 # - LOCAL_BUILT_MODULE 11 # - LOCAL_IS_HOST_MODULE 12 # - LOCAL_MODULE_CLASS 13 # - intermediates 14 # - my_installed_module_stem 15 # - my_prebuilt_src_file 16 # - my_check_elf_file_shared_lib_files 17 18 ifndef LOCAL_IS_HOST_MODULE 19 ifneq ($(filter $(LOCAL_MODULE_CLASS),SHARED_LIBRARIES EXECUTABLES NATIVE_TESTS),) 20 check_elf_files_stamp := $(intermediates)/check_elf_files.timestamp 21 $(check_elf_files_stamp): PRIVATE_SONAME := $(if $(filter $(LOCAL_MODULE_CLASS),SHARED_LIBRARIES),$(my_installed_module_stem)) 22 $(check_elf_files_stamp): PRIVATE_ALLOW_UNDEFINED_SYMBOLS := $(LOCAL_ALLOW_UNDEFINED_SYMBOLS) 23 # PRIVATE_SHARED_LIBRARY_FILES are file paths to built shared libraries. 24 # In addition to $(my_check_elf_file_shared_lib_files), some file paths are 25 # added by `resolve-shared-libs-for-elf-file-check` from `core/main.mk`. 26 $(check_elf_files_stamp): PRIVATE_SHARED_LIBRARY_FILES := $(my_check_elf_file_shared_lib_files) 27 $(check_elf_files_stamp): $(my_prebuilt_src_file) $(my_check_elf_file_shared_lib_files) $(CHECK_ELF_FILE) $(LLVM_READOBJ) 28 @echo Check prebuilt ELF binary: $< 29 $(hide) mkdir -p $(dir $@) 30 $(hide) rm -f $@ 31 $(hide) $(CHECK_ELF_FILE) \ 32 --skip-bad-elf-magic \ 33 --skip-unknown-elf-machine \ 34 $(if $(PRIVATE_SONAME),--soname $(PRIVATE_SONAME)) \ 35 $(foreach l,$(PRIVATE_SHARED_LIBRARY_FILES),--shared-lib $(l)) \ 36 $(if $(PRIVATE_ALLOW_UNDEFINED_SYMBOLS),--allow-undefined-symbols) \ 37 --llvm-readobj=$(LLVM_READOBJ) \ 38 $< 39 $(hide) touch $@ 40 41 ifneq ($(PRODUCT_CHECK_ELF_FILES)$(CHECK_ELF_FILES),) 42 ifneq ($(strip $(LOCAL_CHECK_ELF_FILES)),false) 43 $(LOCAL_BUILT_MODULE): $(check_elf_files_stamp) 44 check-elf-files: $(check_elf_files_stamp) 45 endif # LOCAL_CHECK_ELF_FILES 46 endif # PRODUCT_CHECK_ELF_FILES or CHECK_ELF_FILES 47 48 endif # SHARED_LIBRARIES, EXECUTABLES, NATIVE_TESTS 49 endif # !LOCAL_IS_HOST_MODULE 50
