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      1 ###########################################################
      2 ## Standard rules for building any target-side binaries
      3 ## with dynamic linkage (dynamic libraries or executables
      4 ## that link with dynamic libraries)
      5 ##
      6 ## Files including this file must define a rule to build
      7 ## the target $(linked_module).
      8 ###########################################################
      9 
     10 # This constraint means that we can hard-code any $(TARGET_*) variables.
     11 ifdef LOCAL_IS_HOST_MODULE
     12 $(error This file should not be used to build host binaries.  Included by (or near) $(lastword $(filter-out config/%,$(MAKEFILE_LIST))))
     13 endif
     14 
     15 LOCAL_UNSTRIPPED_PATH := $(strip $(LOCAL_UNSTRIPPED_PATH))
     16 ifeq ($(LOCAL_UNSTRIPPED_PATH),)
     17   ifeq ($(LOCAL_MODULE_PATH),)
     18     LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_$(LOCAL_MODULE_CLASS)_UNSTRIPPED)
     19   else
     20     # We have to figure out the corresponding unstripped path if LOCAL_MODULE_PATH is customized.
     21     LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(LOCAL_MODULE_PATH))
     22   endif
     23 endif
     24 
     25 # The name of the target file, without any path prepended.
     26 # TODO: This duplicates logic from base_rules.mk because we need to
     27 #       know its results before base_rules.mk is included.
     28 #       Consolidate the duplicates.
     29 ifndef LOCAL_MODULE_STEM
     30   LOCAL_MODULE_STEM := $(LOCAL_MODULE)
     31 endif
     32 
     33 ifndef LOCAL_BUILT_MODULE_STEM
     34   LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
     35 endif
     36 
     37 ifndef LOCAL_INSTALLED_MODULE_STEM
     38   LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
     39 endif
     40 
     41 # base_rules.make defines $(intermediates), but we need its value
     42 # before we include base_rules.  Make a guess, and verify that
     43 # it's correct once the real value is defined.
     44 guessed_intermediates := $(call local-intermediates-dir)
     45 
     46 # Define the target that is the unmodified output of the linker.
     47 # The basename of this target must be the same as the final output
     48 # binary name, because it's used to set the "soname" in the binary.
     49 # The includer of this file will define a rule to build this target.
     50 linked_module := $(guessed_intermediates)/LINKED/$(LOCAL_BUILT_MODULE_STEM)
     51 
     52 ALL_ORIGINAL_DYNAMIC_BINARIES += $(linked_module)
     53 
     54 # Because TARGET_SYMBOL_FILTER_FILE depends on ALL_ORIGINAL_DYNAMIC_BINARIES,
     55 # the linked_module rules won't necessarily inherit the PRIVATE_
     56 # variables from LOCAL_BUILT_MODULE.  This tells binary.make to explicitly
     57 # define the PRIVATE_ variables for linked_module as well as for
     58 # LOCAL_BUILT_MODULE.
     59 LOCAL_INTERMEDIATE_TARGETS := $(linked_module)
     60 
     61 ###################################
     62 include $(BUILD_SYSTEM)/binary.mk
     63 ###################################
     64 
     65 # Make sure that our guess at the value of intermediates was correct.
     66 ifneq ($(intermediates),$(guessed_intermediates))
     67 $(error Internal error: guessed path '$(guessed_intermediates)' doesn't match '$(intermediates))
     68 endif
     69 
     70 ###########################################################
     71 ## Compress
     72 ###########################################################
     73 compress_input := $(linked_module)
     74 
     75 ifeq ($(strip $(LOCAL_COMPRESS_MODULE_SYMBOLS)),)
     76   LOCAL_COMPRESS_MODULE_SYMBOLS := $(strip $(TARGET_COMPRESS_MODULE_SYMBOLS))
     77 endif
     78 
     79 ifeq ($(LOCAL_COMPRESS_MODULE_SYMBOLS),true)
     80 $(error Symbol compression not yet supported.)
     81 compress_output := $(intermediates)/COMPRESSED-$(LOCAL_BUILT_MODULE_STEM)
     82 
     83 #TODO: write the real $(STRIPPER) rule.
     84 #TODO: define a rule to build TARGET_SYMBOL_FILTER_FILE, and
     85 #      make it depend on ALL_ORIGINAL_DYNAMIC_BINARIES.
     86 $(compress_output): $(compress_input) $(TARGET_SYMBOL_FILTER_FILE) | $(ACP)
     87 	@echo "target Compress Symbols: $(PRIVATE_MODULE) ($@)"
     88 	$(copy-file-to-target)
     89 else
     90 # Skip this step.
     91 compress_output := $(compress_input)
     92 endif
     93 
     94 ###########################################################
     95 ## Store a copy with symbols for symbolic debugging
     96 ###########################################################
     97 symbolic_input := $(compress_output)
     98 symbolic_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_INSTALLED_MODULE_STEM)
     99 $(symbolic_output) : $(symbolic_input) | $(ACP)
    100 	@echo "target Symbolic: $(PRIVATE_MODULE) ($@)"
    101 	$(copy-file-to-target)
    102 
    103 
    104 ###########################################################
    105 ## Strip
    106 ###########################################################
    107 strip_input := $(symbolic_output)
    108 strip_output := $(LOCAL_BUILT_MODULE)
    109 
    110 ifeq ($(strip $(LOCAL_STRIP_MODULE)),)
    111   LOCAL_STRIP_MODULE := $(strip $(TARGET_STRIP_MODULE))
    112 endif
    113 
    114 ifeq ($(LOCAL_STRIP_MODULE),true)
    115 # Strip the binary
    116 $(strip_output): $(strip_input) | $(TARGET_STRIP)
    117 	$(transform-to-stripped)
    118 else
    119 # Don't strip the binary, just copy it.  We can't skip this step
    120 # because a copy of the binary must appear at LOCAL_BUILT_MODULE.
    121 #
    122 # If the binary we're copying is acp or a prerequisite,
    123 # use cp(1) instead.
    124 ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
    125 $(strip_output): $(strip_input) | $(ACP)
    126 	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
    127 	$(copy-file-to-target)
    128 else
    129 $(strip_output): $(strip_input)
    130 	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
    131 	$(copy-file-to-target-with-cp)
    132 endif
    133 endif # LOCAL_STRIP_MODULE
    134 
    135 
    136 $(cleantarget): PRIVATE_CLEAN_FILES += \
    137     $(linked_module) \
    138     $(symbolic_output) \
    139     $(compress_output)
    140