dynamic_binary.mk revision e1d44c3b4acef1319c34514e8d4ee78127b895ef 
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# TODO: This duplicates logic from base_rules.mk because we need to
17#       know its results before base_rules.mk is included.
18#       Consolidate the duplicates.
19ifndef LOCAL_MODULE_STEM
20  LOCAL_MODULE_STEM := $(LOCAL_MODULE)
21endif
22
23ifndef LOCAL_BUILT_MODULE_STEM
24  LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
25endif
26
27ifndef LOCAL_INSTALLED_MODULE_STEM
28  LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
29endif
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 $(STRIPPER) rule.
74#TODO: define a rule to build TARGET_SYMBOL_FILTER_FILE, and
75#      make it depend on ALL_ORIGINAL_DYNAMIC_BINARIES.
76$(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 := $(compress_input)
82endif
83
84###########################################################
85## Store a copy with symbols for symbolic debugging
86###########################################################
87ifeq ($(LOCAL_UNSTRIPPED_PATH),)
88LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(LOCAL_MODULE_PATH))
89endif
90symbolic_input := $(compress_output)
91symbolic_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_INSTALLED_MODULE_STEM)
92$(symbolic_output) : $(symbolic_input) | $(ACP)
93	@echo "target Symbolic: $(PRIVATE_MODULE) ($@)"
94	$(copy-file-to-target)
95
96
97###########################################################
98## Strip
99###########################################################
100strip_input := $(symbolic_output)
101strip_output := $(LOCAL_BUILT_MODULE)
102
103ifeq ($(strip $(LOCAL_STRIP_MODULE)),)
104  LOCAL_STRIP_MODULE := $(strip $(TARGET_STRIP_MODULE))
105endif
106
107ifeq ($(LOCAL_STRIP_MODULE),true)
108# Strip the binary
109$(strip_output): PRIVATE_STRIP := $(TARGET_STRIP)
110$(strip_output): PRIVATE_OBJCOPY := $(TARGET_OBJCOPY)
111$(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