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 := $(LOCAL_PACK_MODULE_RELOCATIONS) 48 49ifeq ($(my_pack_module_relocations),) 50 my_pack_module_relocations := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_PACK_MODULE_RELOCATIONS) 51endif 52 53# Do not pack relocations for executables. Because packing results in 54# non-zero p_vaddr which causes kernel to load executables to lower 55# address (starting at 0x8000) http://b/20665974 56ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES) 57 my_pack_module_relocations := false 58endif 59 60# TODO (dimitry): Relocation packer is not yet available for darwin 61ifneq ($(HOST_OS),linux) 62 my_pack_module_relocations := false 63endif 64 65ifeq (true,$(my_pack_module_relocations)) 66# Pack relocations 67$(relocation_packer_output): $(relocation_packer_input) | $(ACP) 68 $(pack-elf-relocations) 69else 70$(relocation_packer_output): $(relocation_packer_input) | $(ACP) 71 @echo "target Unpacked: $(PRIVATE_MODULE) ($@)" 72 $(copy-file-to-target) 73endif 74 75########################################################### 76## Store a copy with symbols for symbolic debugging 77########################################################### 78ifeq ($(LOCAL_UNSTRIPPED_PATH),) 79my_unstripped_path := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path)) 80else 81my_unstripped_path := $(LOCAL_UNSTRIPPED_PATH) 82endif 83symbolic_input := $(relocation_packer_output) 84symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem) 85$(symbolic_output) : $(symbolic_input) | $(ACP) 86 @echo "target Symbolic: $(PRIVATE_MODULE) ($@)" 87 $(copy-file-to-target) 88 89 90########################################################### 91## Strip 92########################################################### 93strip_input := $(symbolic_output) 94strip_output := $(LOCAL_BUILT_MODULE) 95 96my_strip_module := $(LOCAL_STRIP_MODULE) 97ifeq ($(my_strip_module),) 98 my_strip_module := true 99endif 100 101$(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 102$(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) 103$(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF) 104ifeq ($(my_strip_module),no_debuglink) 105$(strip_output): PRIVATE_NO_DEBUGLINK := true 106else 107$(strip_output): PRIVATE_NO_DEBUGLINK := 108endif 109 110ifneq ($(filter true no_debuglink,$(my_strip_module)),) 111# Strip the binary 112$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 113 $(transform-to-stripped) 114else ifeq ($(my_strip_module),keep_symbols) 115# Strip only the debug frames, but leave the symbol table. 116$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) 117 $(transform-to-stripped-keep-symbols) 118 119# A product may be configured to strip everything in some build variants. 120# We do the stripping as a post-install command so that LOCAL_BUILT_MODULE 121# is still with the symbols and we don't need to clean it (and relink) when 122# you switch build variant. 123ifneq ($(filter $(STRIP_EVERYTHING_BUILD_VARIANTS),$(TARGET_BUILD_VARIANT)),) 124$(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := \ 125 $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) --strip-all $(LOCAL_INSTALLED_MODULE) 126endif 127else 128# Don't strip the binary, just copy it. We can't skip this step 129# because a copy of the binary must appear at LOCAL_BUILT_MODULE. 130# 131# If the binary we're copying is acp or a prerequisite, 132# use cp(1) instead. 133ifneq ($(LOCAL_ACP_UNAVAILABLE),true) 134$(strip_output): $(strip_input) | $(ACP) 135 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 136 $(copy-file-to-target) 137else 138$(strip_output): $(strip_input) 139 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 140 $(copy-file-to-target-with-cp) 141endif 142endif # my_strip_module 143 144$(cleantarget): PRIVATE_CLEAN_FILES += \ 145 $(linked_module) \ 146 $(symbolic_output) \ 147 $(strip_output) 148