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 # The name of the target file, without any path prepended. 16 # This duplicates logic from base_rules.mk because we need to 17 # know its results before base_rules.mk is included. 18 include $(BUILD_SYSTEM)/configure_module_stem.mk 19 20 intermediates := $(call local-intermediates-dir,,$(LOCAL_2ND_ARCH_VAR_PREFIX)) 21 22 # Define the target that is the unmodified output of the linker. 23 # The basename of this target must be the same as the final output 24 # binary name, because it's used to set the "soname" in the binary. 25 # The includer of this file will define a rule to build this target. 26 linked_module := $(intermediates)/LINKED/$(my_built_module_stem) 27 28 ALL_ORIGINAL_DYNAMIC_BINARIES += $(linked_module) 29 30 # Because TARGET_SYMBOL_FILTER_FILE depends on ALL_ORIGINAL_DYNAMIC_BINARIES, 31 # the linked_module rules won't necessarily inherit the PRIVATE_ 32 # variables from LOCAL_BUILT_MODULE. This tells binary.make to explicitly 33 # define the PRIVATE_ variables for linked_module as well as for 34 # LOCAL_BUILT_MODULE. 35 LOCAL_INTERMEDIATE_TARGETS := $(linked_module) 36 37 ################################### 38 include $(BUILD_SYSTEM)/binary.mk 39 ################################### 40 41 ########################################################### 42 ## Compress 43 ########################################################### 44 compress_input := $(linked_module) 45 46 ifeq ($(strip $(LOCAL_COMPRESS_MODULE_SYMBOLS)),) 47 LOCAL_COMPRESS_MODULE_SYMBOLS := $(strip $(TARGET_COMPRESS_MODULE_SYMBOLS)) 48 endif 49 50 ifeq ($(LOCAL_COMPRESS_MODULE_SYMBOLS),true) 51 $(error Symbol compression not yet supported.) 52 compress_output := $(intermediates)/COMPRESSED-$(my_built_module_stem) 53 54 #TODO: write the real $(STRIPPER) rule. 55 #TODO: define a rule to build TARGET_SYMBOL_FILTER_FILE, and 56 # make it depend on ALL_ORIGINAL_DYNAMIC_BINARIES. 57 $(compress_output): $(compress_input) $(TARGET_SYMBOL_FILTER_FILE) | $(ACP) 58 @echo "target Compress Symbols: $(PRIVATE_MODULE) ($@)" 59 $(copy-file-to-target) 60 else 61 # Skip this step. 62 compress_output := $(compress_input) 63 endif 64 65 ########################################################### 66 ## Store a copy with symbols for symbolic debugging 67 ########################################################### 68 ifeq ($(LOCAL_UNSTRIPPED_PATH),) 69 my_unstripped_path := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 70 else 71 my_unstripped_path := $(LOCAL_UNSTRIPPED_PATH) 72 endif 73 symbolic_input := $(compress_output) 74 symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem) 75 $(symbolic_output) : $(symbolic_input) | $(ACP) 76 @echo "target Symbolic: $(PRIVATE_MODULE) ($@)" 77 $(copy-file-to-target) 78 79 80 ########################################################### 81 ## Strip 82 ########################################################### 83 strip_input := $(symbolic_output) 84 strip_output := $(LOCAL_BUILT_MODULE) 85 86 my_strip_module := $(LOCAL_STRIP_MODULE) 87 ifeq ($(my_strip_module),) 88 my_strip_module := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP_MODULE) 89 endif 90 91 ifeq ($(my_strip_module),true) 92 # Strip the binary 93 $(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 94 $(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) 95 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 96 $(transform-to-stripped) 97 else 98 ifeq ($(my_strip_module),keep_symbols) 99 # Strip only the debug frames, but leave the symbol table. 100 $(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 101 $(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) 102 $(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF) 103 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 104 $(transform-to-stripped-keep-symbols) 105 106 # A product may be configured to strip everything in some build variants. 107 # We do the stripping as a post-install command so that LOCAL_BUILT_MODULE 108 # is still with the symbols and we don't need to clean it (and relink) when 109 # you switch build variant. 110 ifneq ($(filter $(STRIP_EVERYTHING_BUILD_VARIANTS),$(TARGET_BUILD_VARIANT)),) 111 $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := \ 112 $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) --strip-all $(LOCAL_INSTALLED_MODULE) 113 endif 114 else 115 # Don't strip the binary, just copy it. We can't skip this step 116 # because a copy of the binary must appear at LOCAL_BUILT_MODULE. 117 # 118 # If the binary we're copying is acp or a prerequisite, 119 # use cp(1) instead. 120 ifneq ($(LOCAL_ACP_UNAVAILABLE),true) 121 $(strip_output): $(strip_input) | $(ACP) 122 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 123 $(copy-file-to-target) 124 else 125 $(strip_output): $(strip_input) 126 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 127 $(copy-file-to-target-with-cp) 128 endif 129 endif 130 endif # my_strip_module 131 132 133 $(cleantarget): PRIVATE_CLEAN_FILES += \ 134 $(linked_module) \ 135 $(symbolic_output) \ 136 $(compress_output) 137
