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 := $(intermediates)/LINKED/$(notdir $(my_installed_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 ## Pack relocation tables 43 ########################################################### 44 relocation_packer_input := $(linked_module) 45 relocation_packer_output := $(intermediates)/PACKED/$(my_built_module_stem) 46 47 my_pack_module_relocations := false 48 ifneq ($(DISABLE_RELOCATION_PACKER),true) 49 my_pack_module_relocations := $(firstword \ 50 $(LOCAL_PACK_MODULE_RELOCATIONS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \ 51 $(LOCAL_PACK_MODULE_RELOCATIONS)) 52 endif 53 54 ifeq ($(my_pack_module_relocations),) 55 my_pack_module_relocations := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_PACK_MODULE_RELOCATIONS) 56 endif 57 58 # Do not pack relocations for executables. Because packing results in 59 # non-zero p_vaddr which causes kernel to load executables to lower 60 # address (starting at 0x8000) http://b/20665974 61 ifneq ($(filter EXECUTABLES NATIVE_TESTS,$(LOCAL_MODULE_CLASS)),) 62 my_pack_module_relocations := false 63 endif 64 65 # TODO (dimitry): Relocation packer is not yet available for darwin 66 ifneq ($(HOST_OS),linux) 67 my_pack_module_relocations := false 68 endif 69 70 ifeq (true,$(my_pack_module_relocations)) 71 # Pack relocations 72 $(relocation_packer_output): $(relocation_packer_input) 73 $(pack-elf-relocations) 74 else 75 $(relocation_packer_output): $(relocation_packer_input) 76 @echo "target Unpacked: $(PRIVATE_MODULE) ($@)" 77 $(copy-file-to-target) 78 endif 79 80 ########################################################### 81 ## Store a copy with symbols for symbolic debugging 82 ########################################################### 83 ifeq ($(LOCAL_UNSTRIPPED_PATH),) 84 my_unstripped_path := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 85 else 86 my_unstripped_path := $(LOCAL_UNSTRIPPED_PATH) 87 endif 88 symbolic_input := $(relocation_packer_output) 89 symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem) 90 $(symbolic_output) : $(symbolic_input) 91 @echo "target Symbolic: $(PRIVATE_MODULE) ($@)" 92 $(copy-file-to-target) 93 94 ########################################################### 95 ## Store breakpad symbols 96 ########################################################### 97 98 ifeq ($(BREAKPAD_GENERATE_SYMBOLS),true) 99 my_breakpad_path := $(TARGET_OUT_BREAKPAD)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 100 breakpad_input := $(relocation_packer_output) 101 breakpad_output := $(my_breakpad_path)/$(my_installed_module_stem).sym 102 $(breakpad_output) : $(breakpad_input) | $(BREAKPAD_DUMP_SYMS) $(PRIVATE_READELF) 103 @echo "target breakpad: $(PRIVATE_MODULE) ($@)" 104 @mkdir -p $(dir $@) 105 $(hide) if $(PRIVATE_READELF) -S $< > /dev/null 2>&1 ; then \ 106 $(BREAKPAD_DUMP_SYMS) -c $< > $@ ; \ 107 else \ 108 echo "skipped for non-elf file."; \ 109 touch $@; \ 110 fi 111 $(LOCAL_BUILT_MODULE) : $(breakpad_output) 112 endif 113 114 ########################################################### 115 ## Strip 116 ########################################################### 117 strip_input := $(symbolic_output) 118 strip_output := $(LOCAL_BUILT_MODULE) 119 120 my_strip_module := $(firstword \ 121 $(LOCAL_STRIP_MODULE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \ 122 $(LOCAL_STRIP_MODULE)) 123 ifeq ($(my_strip_module),) 124 my_strip_module := mini-debug-info 125 endif 126 127 ifeq ($(my_strip_module),mini-debug-info) 128 # Don't use mini-debug-info on mips (both 32-bit and 64-bit). objcopy checks that all 129 # SH_MIPS_DWARF sections having name prefix .debug_ or .zdebug_, so there seems no easy 130 # way using objcopy to remove all debug sections except .debug_frame on mips. 131 ifneq ($(filter mips mips64,$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)),) 132 my_strip_module := true 133 endif 134 endif 135 136 $(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 137 $(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) 138 $(strip_output): PRIVATE_NM := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM) 139 $(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF) 140 ifeq ($(my_strip_module),no_debuglink) 141 $(strip_output): PRIVATE_NO_DEBUGLINK := true 142 else 143 $(strip_output): PRIVATE_NO_DEBUGLINK := 144 endif 145 146 ifeq ($(my_strip_module),mini-debug-info) 147 # Strip the binary, but keep debug frames and symbol table in a compressed .gnu_debugdata section. 148 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM) 149 $(transform-to-stripped-keep-mini-debug-info) 150 else ifneq ($(filter true no_debuglink,$(my_strip_module)),) 151 # Strip the binary 152 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 153 $(transform-to-stripped) 154 else ifeq ($(my_strip_module),keep_symbols) 155 # Strip only the debug frames, but leave the symbol table. 156 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 157 $(transform-to-stripped-keep-symbols) 158 159 # A product may be configured to strip everything in some build variants. 160 # We do the stripping as a post-install command so that LOCAL_BUILT_MODULE 161 # is still with the symbols and we don't need to clean it (and relink) when 162 # you switch build variant. 163 ifneq ($(filter $(STRIP_EVERYTHING_BUILD_VARIANTS),$(TARGET_BUILD_VARIANT)),) 164 $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := \ 165 $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) --strip-all $(LOCAL_INSTALLED_MODULE) 166 endif 167 else 168 # Don't strip the binary, just copy it. We can't skip this step 169 # because a copy of the binary must appear at LOCAL_BUILT_MODULE. 170 $(strip_output): $(strip_input) 171 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 172 $(copy-file-to-target) 173 endif # my_strip_module 174 175 $(cleantarget): PRIVATE_CLEAN_FILES += \ 176 $(linked_module) \ 177 $(breakpad_output) \ 178 $(symbolic_output) \ 179 $(strip_output) 180
