dynamic_binary.mk revision eda6ac2487610d289c654f67e42d256980d4cb00 
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  ifeq ($(LOCAL_MODULE_PATH),)
18    LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_$(LOCAL_MODULE_CLASS)_UNSTRIPPED)
19  else
20    # We have to figure out the corresponding unstripped path if LOCAL_MODULE_PATH is customized.
21    LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(LOCAL_MODULE_PATH))
22  endif
23endif
24
25# The name of the target file, without any path prepended.
26# TODO: This duplicates logic from base_rules.mk because we need to
27#       know its results before base_rules.mk is included.
28#       Consolidate the duplicates.
29LOCAL_MODULE_STEM := $(strip $(LOCAL_MODULE_STEM))
30ifeq ($(LOCAL_MODULE_STEM),)
31  LOCAL_MODULE_STEM := $(LOCAL_MODULE)
32endif
33LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
34LOCAL_BUILT_MODULE_STEM := $(LOCAL_INSTALLED_MODULE_STEM)
35
36# base_rules.make defines $(intermediates), but we need its value
37# before we include base_rules.  Make a guess, and verify that
38# it's correct once the real value is defined.
39guessed_intermediates := $(call local-intermediates-dir)
40
41# Define the target that is the unmodified output of the linker.
42# The basename of this target must be the same as the final output
43# binary name, because it's used to set the "soname" in the binary.
44# The includer of this file will define a rule to build this target.
45linked_module := $(guessed_intermediates)/LINKED/$(LOCAL_BUILT_MODULE_STEM)
46
47ALL_ORIGINAL_DYNAMIC_BINARIES += $(linked_module)
48
49# Because TARGET_SYMBOL_FILTER_FILE depends on ALL_ORIGINAL_DYNAMIC_BINARIES,
50# the linked_module rules won't necessarily inherit the PRIVATE_
51# variables from LOCAL_BUILT_MODULE.  This tells binary.make to explicitly
52# define the PRIVATE_ variables for linked_module as well as for
53# LOCAL_BUILT_MODULE.
54LOCAL_INTERMEDIATE_TARGETS := $(linked_module)
55
56###################################
57include $(BUILD_SYSTEM)/binary.mk
58###################################
59
60# Make sure that our guess at the value of intermediates was correct.
61ifneq ($(intermediates),$(guessed_intermediates))
62$(error Internal error: guessed path '$(guessed_intermediates)' doesn't match '$(intermediates))
63endif
64
65###########################################################
66## Compress
67###########################################################
68compress_input := $(linked_module)
69
70ifeq ($(strip $(LOCAL_COMPRESS_MODULE_SYMBOLS)),)
71  LOCAL_COMPRESS_MODULE_SYMBOLS := $(strip $(TARGET_COMPRESS_MODULE_SYMBOLS))
72endif
73
74ifeq ($(LOCAL_COMPRESS_MODULE_SYMBOLS),true)
75$(error Symbol compression not yet supported.)
76compress_output := $(intermediates)/COMPRESSED-$(LOCAL_BUILT_MODULE_STEM)
77
78#TODO: write the real $(STRIPPER) rule.
79#TODO: define a rule to build TARGET_SYMBOL_FILTER_FILE, and
80#      make it depend on ALL_ORIGINAL_DYNAMIC_BINARIES.
81$(compress_output): $(compress_input) $(TARGET_SYMBOL_FILTER_FILE) | $(ACP)
82	@echo "target Compress Symbols: $(PRIVATE_MODULE) ($@)"
83	$(copy-file-to-target)
84else
85# Skip this step.
86compress_output := $(compress_input)
87endif
88
89###########################################################
90## Store a copy with symbols for symbolic debugging
91###########################################################
92symbolic_input := $(compress_output)
93symbolic_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_BUILT_MODULE_STEM)
94$(symbolic_output) : $(symbolic_input) | $(ACP)
95	@echo "target Symbolic: $(PRIVATE_MODULE) ($@)"
96	$(copy-file-to-target)
97
98
99###########################################################
100## Strip
101###########################################################
102strip_input := $(symbolic_output)
103strip_output := $(LOCAL_BUILT_MODULE)
104
105ifeq ($(strip $(LOCAL_STRIP_MODULE)),)
106  LOCAL_STRIP_MODULE := $(strip $(TARGET_STRIP_MODULE))
107endif
108
109ifeq ($(LOCAL_STRIP_MODULE),true)
110# Strip the binary
111$(strip_output): $(strip_input) | $(TARGET_STRIP)
112	$(transform-to-stripped)
113else
114# Don't strip the binary, just copy it.  We can't skip this step
115# because a copy of the binary must appear at LOCAL_BUILT_MODULE.
116#
117# If the binary we're copying is acp or a prerequisite,
118# use cp(1) instead.
119ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
120$(strip_output): $(strip_input) | $(ACP)
121	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
122	$(copy-file-to-target)
123else
124$(strip_output): $(strip_input)
125	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
126	$(copy-file-to-target-with-cp)
127endif
128endif # LOCAL_STRIP_MODULE
129
130
131$(cleantarget): PRIVATE_CLEAN_FILES += \
132    $(linked_module) \
133    $(symbolic_output) \
134    $(compress_output)
135