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 $(TARGET_*) variables. 11ifdef LOCAL_IS_HOST_MODULE 12$(error This file should not be used to build host binaries. Included by (or near) $(lastword $(filter-out config/%,$(MAKEFILE_LIST)))) 13endif 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. 18include $(BUILD_SYSTEM)/configure_module_stem.mk 19 20intermediates := $(call local-intermediates-dir,,$(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. 26linked_module := $(intermediates)/LINKED/$(my_built_module_stem) 27 28ALL_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. 35LOCAL_INTERMEDIATE_TARGETS := $(linked_module) 36 37################################### 38include $(BUILD_SYSTEM)/binary.mk 39################################### 40 41########################################################### 42## Pack relocation tables 43########################################################### 44relocation_packer_input := $(linked_module) 45relocation_packer_output := $(intermediates)/PACKED/$(my_built_module_stem) 46 47my_pack_module_relocations := false 48ifneq ($(DISABLE_RELOCATION_PACKER),true) 49 my_pack_module_relocations := $(firstword \ 50 $(LOCAL_PACK_MODULE_RELOCATIONS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \ 51 $(LOCAL_PACK_MODULE_RELOCATIONS)) 52endif 53 54ifeq ($(my_pack_module_relocations),) 55 my_pack_module_relocations := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_PACK_MODULE_RELOCATIONS) 56endif 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 61ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES) 62 my_pack_module_relocations := false 63endif 64 65# TODO (dimitry): Relocation packer is not yet available for darwin 66ifneq ($(HOST_OS),linux) 67 my_pack_module_relocations := false 68endif 69 70ifeq (true,$(my_pack_module_relocations)) 71# Pack relocations 72$(relocation_packer_output): $(relocation_packer_input) | $(ACP) 73 $(pack-elf-relocations) 74else 75$(relocation_packer_output): $(relocation_packer_input) | $(ACP) 76 @echo "target Unpacked: $(PRIVATE_MODULE) ($@)" 77 $(copy-file-to-target) 78endif 79 80########################################################### 81## Store a copy with symbols for symbolic debugging 82########################################################### 83ifeq ($(LOCAL_UNSTRIPPED_PATH),) 84my_unstripped_path := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 85else 86my_unstripped_path := $(LOCAL_UNSTRIPPED_PATH) 87endif 88symbolic_input := $(relocation_packer_output) 89symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem) 90$(symbolic_output) : $(symbolic_input) | $(ACP) 91 @echo "target Symbolic: $(PRIVATE_MODULE) ($@)" 92 $(copy-file-to-target) 93 94########################################################### 95## Store breakpad symbols 96########################################################### 97 98ifeq ($(BREAKPAD_GENERATE_SYMBOLS),true) 99my_breakpad_path := $(TARGET_OUT_BREAKPAD)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 100breakpad_input := $(relocation_packer_output) 101breakpad_output := $(my_breakpad_path)/$(my_installed_module_stem).sym 102$(breakpad_output) : $(breakpad_input) | $(BREAKPAD_DUMP_SYMS) 103 @echo "target breakpad: $(PRIVATE_MODULE) ($@)" 104 @mkdir -p $(dir $@) 105 $(hide) $(BREAKPAD_DUMP_SYMS) -c $< > $@ 106$(LOCAL_BUILT_MODULE) : $(breakpad_output) 107endif 108 109########################################################### 110## Strip 111########################################################### 112strip_input := $(symbolic_output) 113strip_output := $(LOCAL_BUILT_MODULE) 114 115my_strip_module := $(firstword \ 116 $(LOCAL_STRIP_MODULE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \ 117 $(LOCAL_STRIP_MODULE)) 118ifeq ($(my_strip_module),) 119 my_strip_module := true 120endif 121 122$(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 123$(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) 124$(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF) 125ifeq ($(my_strip_module),no_debuglink) 126$(strip_output): PRIVATE_NO_DEBUGLINK := true 127else 128$(strip_output): PRIVATE_NO_DEBUGLINK := 129endif 130 131ifneq ($(filter true no_debuglink,$(my_strip_module)),) 132# Strip the binary 133$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 134 $(transform-to-stripped) 135else ifeq ($(my_strip_module),keep_symbols) 136# Strip only the debug frames, but leave the symbol table. 137$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 138 $(transform-to-stripped-keep-symbols) 139 140# A product may be configured to strip everything in some build variants. 141# We do the stripping as a post-install command so that LOCAL_BUILT_MODULE 142# is still with the symbols and we don't need to clean it (and relink) when 143# you switch build variant. 144ifneq ($(filter $(STRIP_EVERYTHING_BUILD_VARIANTS),$(TARGET_BUILD_VARIANT)),) 145$(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := \ 146 $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) --strip-all $(LOCAL_INSTALLED_MODULE) 147endif 148else 149# Don't strip the binary, just copy it. We can't skip this step 150# because a copy of the binary must appear at LOCAL_BUILT_MODULE. 151# 152# If the binary we're copying is acp or a prerequisite, 153# use cp(1) instead. 154ifneq ($(LOCAL_ACP_UNAVAILABLE),true) 155$(strip_output): $(strip_input) | $(ACP) 156 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 157 $(copy-file-to-target) 158else 159$(strip_output): $(strip_input) 160 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 161 $(copy-file-to-target-with-cp) 162endif 163endif # my_strip_module 164 165$(cleantarget): PRIVATE_CLEAN_FILES += \ 166 $(linked_module) \ 167 $(breakpad_output) \ 168 $(symbolic_output) \ 169 $(strip_output) 170