dynamic_binary.mk revision 1eca10fa9d3bce9a62ae882c995052974db7b3c3 
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 $(BUILD_SYSTEM)/binary.mk
39###################################
40
41###########################################################
42## Store a copy with symbols for symbolic debugging
43###########################################################
44ifeq ($(LOCAL_UNSTRIPPED_PATH),)
45my_unstripped_path := $(TARGET_OUT_UNSTRIPPED)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path))
46else
47my_unstripped_path := $(LOCAL_UNSTRIPPED_PATH)
48endif
49symbolic_input := $(linked_module)
50symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem)
51$(symbolic_output) : $(symbolic_input) | $(ACP)
52	@echo "target Symbolic: $(PRIVATE_MODULE) ($@)"
53	$(copy-file-to-target)
54
55
56###########################################################
57## Strip
58###########################################################
59strip_input := $(symbolic_output)
60strip_output := $(LOCAL_BUILT_MODULE)
61
62my_strip_module := $(LOCAL_STRIP_MODULE)
63ifeq ($(my_strip_module),)
64  my_strip_module := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP_MODULE)
65endif
66
67$(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
68$(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY)
69$(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF)
70ifeq ($(my_strip_module),no_debuglink)
71$(strip_output): PRIVATE_NO_DEBUGLINK := true
72else
73$(strip_output): PRIVATE_NO_DEBUGLINK :=
74endif
75
76ifneq ($(filter true no_debuglink,$(my_strip_module)),)
77# Strip the binary
78$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
79	$(transform-to-stripped)
80else ifeq ($(my_strip_module),keep_symbols)
81# Strip only the debug frames, but leave the symbol table.
82$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
83	$(transform-to-stripped-keep-symbols)
84
85# A product may be configured to strip everything in some build variants.
86# We do the stripping as a post-install command so that LOCAL_BUILT_MODULE
87# is still with the symbols and we don't need to clean it (and relink) when
88# you switch build variant.
89ifneq ($(filter $(STRIP_EVERYTHING_BUILD_VARIANTS),$(TARGET_BUILD_VARIANT)),)
90$(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := \
91  $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) --strip-all $(LOCAL_INSTALLED_MODULE)
92endif
93else
94# Don't strip the binary, just copy it.  We can't skip this step
95# because a copy of the binary must appear at LOCAL_BUILT_MODULE.
96#
97# If the binary we're copying is acp or a prerequisite,
98# use cp(1) instead.
99ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
100$(strip_output): $(strip_input) | $(ACP)
101	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
102	$(copy-file-to-target)
103else
104$(strip_output): $(strip_input)
105	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
106	$(copy-file-to-target-with-cp)
107endif
108endif # my_strip_module
109
110
111$(cleantarget): PRIVATE_CLEAN_FILES += \
112    $(linked_module) \
113    $(symbolic_output)
114