dynamic_binary.mk revision 2dcc806af56351dca462225be7ecfad7da5aa8f1
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 15LOCAL_UNSTRIPPED_PATH := $(strip $(LOCAL_UNSTRIPPED_PATH)) 16ifeq ($(LOCAL_UNSTRIPPED_PATH),) 17 LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_$(LOCAL_MODULE_CLASS)_UNSTRIPPED) 18endif 19 20# The name of the target file, without any path prepended. 21# TODO: This duplicates logic from base_rules.mk because we need to 22# know its results before base_rules.mk is included. 23# Consolidate the duplicates. 24LOCAL_MODULE_STEM := $(strip $(LOCAL_MODULE_STEM)) 25ifeq ($(LOCAL_MODULE_STEM),) 26 LOCAL_MODULE_STEM := $(LOCAL_MODULE) 27endif 28LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX) 29LOCAL_BUILT_MODULE_STEM := $(LOCAL_INSTALLED_MODULE_STEM) 30 31# base_rules.make defines $(intermediates), but we need its value 32# before we include base_rules. Make a guess, and verify that 33# it's correct once the real value is defined. 34guessed_intermediates := $(call local-intermediates-dir) 35 36# Define the target that is the unmodified output of the linker. 37# The basename of this target must be the same as the final output 38# binary name, because it's used to set the "soname" in the binary. 39# The includer of this file will define a rule to build this target. 40linked_module := $(guessed_intermediates)/LINKED/$(LOCAL_BUILT_MODULE_STEM) 41 42ALL_ORIGINAL_DYNAMIC_BINARIES += $(linked_module) 43 44# Because TARGET_SYMBOL_FILTER_FILE depends on ALL_ORIGINAL_DYNAMIC_BINARIES, 45# the linked_module rules won't necessarily inherit the PRIVATE_ 46# variables from LOCAL_BUILT_MODULE. This tells binary.make to explicitly 47# define the PRIVATE_ variables for linked_module as well as for 48# LOCAL_BUILT_MODULE. 49LOCAL_INTERMEDIATE_TARGETS := $(linked_module) 50 51################################### 52include $(BUILD_SYSTEM)/binary.mk 53################################### 54 55# Make sure that our guess at the value of intermediates was correct. 56ifneq ($(intermediates),$(guessed_intermediates)) 57$(error Internal error: guessed path '$(guessed_intermediates)' doesn't match '$(intermediates)) 58endif 59 60########################################################### 61## Compress 62########################################################### 63compress_input := $(linked_module) 64 65ifeq ($(strip $(LOCAL_COMPRESS_MODULE_SYMBOLS)),) 66 LOCAL_COMPRESS_MODULE_SYMBOLS := $(strip $(TARGET_COMPRESS_MODULE_SYMBOLS)) 67endif 68 69ifeq ($(LOCAL_COMPRESS_MODULE_SYMBOLS),true) 70$(error Symbol compression not yet supported.) 71compress_output := $(intermediates)/COMPRESSED-$(LOCAL_BUILT_MODULE_STEM) 72 73#TODO: write the real $(SOSLIM) rule. 74#TODO: define a rule to build TARGET_SYMBOL_FILTER_FILE, and 75# make it depend on ALL_ORIGINAL_DYNAMIC_BINARIES. 76$(compress_output): $(compress_input) $(TARGET_SYMBOL_FILTER_FILE) | $(ACP) 77 @echo "target Compress Symbols: $(PRIVATE_MODULE) ($@)" 78 $(copy-file-to-target) 79else 80# Skip this step. 81compress_output := $(compress_input) 82endif 83 84 85########################################################### 86## Pre-link 87########################################################### 88prelink_input := $(compress_output) 89# The output of the prelink step is the binary we want to use 90# for symbolic debugging; the prelink step may move sections 91# around, so we have to use this version. 92prelink_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_MODULE_SUBDIR)$(LOCAL_BUILT_MODULE_STEM) 93 94# Skip prelinker if it is FDO instrumentation build. 95ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 96ifneq ($(LOCAL_NO_FDO_SUPPORT),true) 97LOCAL_PRELINK_MODULE := false 98endif 99endif 100 101ifeq ($(LOCAL_PRELINK_MODULE),true) 102$(prelink_output): $(prelink_input) $(TARGET_PRELINKER_MAP) $(APRIORI) 103 $(transform-to-prelinked) 104else 105# Don't prelink the binary, just copy it. We can't skip this step 106# because people always expect a copy of the binary to appear 107# in the UNSTRIPPED directory. 108# 109# If the binary we're copying is acp or a prerequisite, 110# use cp(1) instead. 111ifneq ($(LOCAL_ACP_UNAVAILABLE),true) 112$(prelink_output): $(prelink_input) | $(ACP) 113 @echo "target Non-prelinked: $(PRIVATE_MODULE) ($@)" 114 $(copy-file-to-target) 115else 116$(prelink_output): $(prelink_input) 117 @echo "target Non-prelinked: $(PRIVATE_MODULE) ($@)" 118 $(copy-file-to-target-with-cp) 119endif 120endif 121 122 123########################################################### 124## Strip 125########################################################### 126strip_input := $(prelink_output) 127strip_output := $(LOCAL_BUILT_MODULE) 128 129ifeq ($(strip $(LOCAL_STRIP_MODULE)),) 130 LOCAL_STRIP_MODULE := $(strip $(TARGET_STRIP_MODULE)) 131endif 132 133ifeq ($(LOCAL_STRIP_MODULE),true) 134# Strip the binary 135$(strip_output): $(strip_input) | $(SOSLIM) 136 $(transform-to-stripped) 137else 138# Don't strip the binary, just copy it. We can't skip this step 139# because a copy of the binary must appear at LOCAL_BUILT_MODULE. 140# 141# If the binary we're copying is acp or a prerequisite, 142# use cp(1) instead. 143ifneq ($(LOCAL_ACP_UNAVAILABLE),true) 144$(strip_output): $(strip_input) | $(ACP) 145 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 146 $(copy-file-to-target) 147else 148$(strip_output): $(strip_input) 149 @echo "target Unstripped: $(PRIVATE_MODULE) ($@)" 150 $(copy-file-to-target-with-cp) 151endif 152endif # LOCAL_STRIP_MODULE 153 154 155$(cleantarget): PRIVATE_CLEAN_FILES := \ 156 $(PRIVATE_CLEAN_FILES) \ 157 $(linked_module) \ 158 $(compress_output) \ 159 $(prelink_output) 160