1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
# Copyright (C) 2007 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
INTERNAL_CLEAN_STEPS :=
# Builds up a list of clean steps. Creates a unique
# id for each step by taking INTERNAL_CLEAN_BUILD_VERSION
# and appending an increasing number of '@' characters.
#
# $(1): shell command to run
define _add-clean-step
$(if $(strip $(INTERNAL_CLEAN_BUILD_VERSION)),, \
$(error INTERNAL_CLEAN_BUILD_VERSION not set))
$(eval _acs_id := $(strip $(lastword $(INTERNAL_CLEAN_STEPS))))
$(if $(_acs_id),,$(eval _acs_id := $(INTERNAL_CLEAN_BUILD_VERSION)))
$(eval _acs_id := $(_acs_id)@)
$(eval INTERNAL_CLEAN_STEPS += $(_acs_id))
$(eval INTERNAL_CLEAN_STEP.$(_acs_id) := $(1))
$(eval _acs_id :=)
endef
define add-clean-step
$(if $(call _add-clean-step,$(1)),)
endef
# Defines INTERNAL_CLEAN_BUILD_VERSION and the individual clean steps.
# cleanspec.mk is outside of the core directory so that more people
# can have permission to touch it.
include build/cleanspec.mk
INTERNAL_CLEAN_BUILD_VERSION := $(strip $(INTERNAL_CLEAN_BUILD_VERSION))
# If the clean_steps.mk file is missing (usually after a clean build)
# then we won't do anything.
CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)
CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)
# Read the current state from the file, if present.
# Will set CURRENT_CLEAN_BUILD_VERSION and CURRENT_CLEAN_STEPS.
#
clean_steps_file := $(PRODUCT_OUT)/clean_steps.mk
-include $(clean_steps_file)
ifneq ($(CURRENT_CLEAN_BUILD_VERSION),$(INTERNAL_CLEAN_BUILD_VERSION))
# The major clean version is out-of-date. Do a full clean, and
# don't even bother with the clean steps.
$(info *** A clean build is required because of a recent change.)
$(shell rm -rf $(OUT_DIR))
$(info *** Done with the cleaning, now starting the real build.)
else
# The major clean version is correct. Find the list of clean steps
# that we need to execute to get up-to-date.
steps := \
$(filter-out $(CURRENT_CLEAN_STEPS),$(INTERNAL_CLEAN_STEPS))
$(foreach step,$(steps), \
$(info Clean step: $(INTERNAL_CLEAN_STEP.$(step))) \
$(shell $(INTERNAL_CLEAN_STEP.$(step))) \
)
steps :=
endif
CURRENT_CLEAN_BUILD_VERSION :=
CURRENT_CLEAN_STEPS :=
# Write the new state to the file.
#
$(shell \
mkdir -p $(dir $(clean_steps_file)) && \
echo "CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)" > \
$(clean_steps_file) ;\
echo "CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)" >> \
$(clean_steps_file) \
)
clean_steps_file :=
INTERNAL_CLEAN_STEPS :=
INTERNAL_CLEAN_BUILD_VERSION :=
# Since products and build variants (unfortunately) share the same
# PRODUCT_OUT staging directory, things can get out of sync if different
# build configurations are built in the same tree. The following logic
# will notice when the configuration has changed and remove the files
# necessary to keep things consistent.
previous_build_config_file := $(PRODUCT_OUT)/previous_build_config.mk
# TODO: this special case for the sdk is only necessary while "sdk"
# is a valid make target. Eventually, it will just be a product, at
# which point TARGET_PRODUCT will handle it and we can avoid this check
# of MAKECMDGOALS. The "addprefix" is just to keep things pretty.
ifneq ($(TARGET_PRODUCT),sdk)
building_sdk := $(addprefix -,$(filter sdk,$(MAKECMDGOALS)))
else
# Don't bother with this extra part when explicitly building the sdk product.
building_sdk :=
endif
# A change in the list of locales warrants an installclean, too.
locale_list := $(subst $(space),$(comma),$(strip $(PRODUCT_LOCALES)))
current_build_config := \
$(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)$(building_sdk)-{$(locale_list)}
building_sdk :=
locale_list :=
force_installclean := false
# Read the current state from the file, if present.
# Will set PREVIOUS_BUILD_CONFIG.
#
PREVIOUS_BUILD_CONFIG :=
-include $(previous_build_config_file)
PREVIOUS_BUILD_CONFIG := $(strip $(PREVIOUS_BUILD_CONFIG))
ifdef PREVIOUS_BUILD_CONFIG
ifneq "$(current_build_config)" "$(PREVIOUS_BUILD_CONFIG)"
$(info *** Build configuration changed: "$(PREVIOUS_BUILD_CONFIG)" -> "$(current_build_config)")
ifneq ($(DISABLE_AUTO_INSTALLCLEAN),true)
force_installclean := true
else
$(info DISABLE_AUTO_INSTALLCLEAN is set; skipping auto-clean. Your tree may be in an inconsistent state.)
endif
endif
endif # else, this is the first build, so no need to clean.
PREVIOUS_BUILD_CONFIG :=
# Write the new state to the file.
#
$(shell \
mkdir -p $(dir $(previous_build_config_file)) && \
echo "PREVIOUS_BUILD_CONFIG := $(current_build_config)" > \
$(previous_build_config_file) \
)
previous_build_config_file :=
current_build_config :=
#
# installclean logic
#
# The files/dirs to delete during an installclean. This includes the
# non-common APPS directory, which may contain the wrong resources.
# Use "./" in front of the paths to avoid accidentally deleting random
# parts of the filesystem if any of the *_OUT vars resolve to blank.
#
# Deletes all of the files that change between different build types,
# like "make user" vs. "make sdk". This lets you work with different
# build types without having to do a full clean each time. E.g.:
#
# $ make -j8 all
# $ make installclean
# $ make -j8 user
# $ make installclean
# $ make -j8 sdk
#
installclean_files := \
./$(HOST_OUT)/obj/NOTICE_FILES \
./$(HOST_OUT)/sdk \
./$(PRODUCT_OUT)/*.img \
./$(PRODUCT_OUT)/*.txt \
./$(PRODUCT_OUT)/*.xlb \
./$(PRODUCT_OUT)/*.zip \
./$(PRODUCT_OUT)/data \
./$(PRODUCT_OUT)/obj/lib \
./$(PRODUCT_OUT)/obj/APPS \
./$(PRODUCT_OUT)/obj/NOTICE_FILES \
./$(PRODUCT_OUT)/obj/PACKAGING \
./$(PRODUCT_OUT)/recovery \
./$(PRODUCT_OUT)/root \
./$(PRODUCT_OUT)/symbols/system/lib \
./$(PRODUCT_OUT)/system
# The files/dirs to delete during a dataclean, which removes any files
# in the staging and emulator data partitions.
dataclean_files := \
./$(PRODUCT_OUT)/data/* \
./$(PRODUCT_OUT)/data-qemu/* \
./$(PRODUCT_OUT)/userdata-qemu.img
# Define the rules for commandline invocation.
.PHONY: dataclean
dataclean: FILES := $(dataclean_files)
dataclean:
$(hide) rm -rf $(FILES)
@echo "Deleted emulator userdata images."
.PHONY: installclean
installclean: FILES := $(installclean_files)
installclean: dataclean
$(hide) rm -rf $(FILES)
@echo "Deleted images and staging directories."
ifeq "$(force_installclean)" "true"
$(info *** Forcing "make installclean"...)
$(shell rm -rf $(dataclean_files) $(installclean_files))
$(info *** Done with the cleaning, now starting the real build.)
endif
force_installclean :=
|
