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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
ifndef INCLUDED_RULES_MK
include $(topsrcdir)/config/rules.mk
endif
# The traditional model of directory traversal with make is as follows:
# make -C foo
# Entering foo
# make -C bar
# Entering foo/bar
# make -C baz
# Entering foo/baz
# make -C qux
# Entering qux
#
# Pseudo derecurse transforms the above into:
# make -C foo
# make -C foo/bar
# make -C foo/baz
# make -C qux
ifeq (.,$(DEPTH))
include root.mk
# Main rules (export, compile, libs and tools) call recurse_* rules.
# This wrapping is only really useful for build status.
$(RUNNABLE_TIERS)::
$(if $(filter $@,$(MAKECMDGOALS)),$(call BUILDSTATUS,TIERS $@),)
$(call BUILDSTATUS,TIER_START $@)
+$(MAKE) recurse_$@
$(call BUILDSTATUS,TIER_FINISH $@)
# Special rule that does install-manifests (cf. Makefile.in) + compile
binaries::
+$(MAKE) recurse_compile
# Get current tier and corresponding subtiers from the data in root.mk.
CURRENT_TIER := $(filter $(foreach tier,$(RUNNABLE_TIERS) $(non_default_tiers),recurse_$(tier) $(tier)-deps),$(MAKECMDGOALS))
ifneq (,$(filter-out 0 1,$(words $(CURRENT_TIER))))
$(error $(CURRENT_TIER) not supported on the same make command line)
endif
CURRENT_TIER := $(subst recurse_,,$(CURRENT_TIER:-deps=))
# The rules here are doing directory traversal, so we don't want further
# recursion to happen when running make -C subdir $tier. But some make files
# further call make -C something else, and sometimes expect recursion to
# happen in that case.
# Conveniently, every invocation of make increases MAKELEVEL, so only stop
# recursion from happening at current MAKELEVEL + 1.
ifdef CURRENT_TIER
ifeq (0,$(MAKELEVEL))
export NO_RECURSE_MAKELEVEL=1
else
export NO_RECURSE_MAKELEVEL=$(word $(MAKELEVEL),2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20)
endif
endif
RECURSE = $(if $(RECURSE_TRACE_ONLY),@echo $2/$1,$(call SUBMAKE,$1,$2))
# Use the $(*_dirs) variables available in root.mk
CURRENT_DIRS := $($(CURRENT_TIER)_dirs)
# Need a list of compile targets because we can't use pattern rules:
# https://savannah.gnu.org/bugs/index.php?42833
# Only recurse the paths starting with RECURSE_BASE_DIR when provided.
.PHONY: $(pre_compile_targets) $(compile_targets) $(syms_targets)
$(pre_compile_targets) $(compile_targets) $(syms_targets):
$(if $(filter $(RECURSE_BASE_DIR)%,$@),$(call RECURSE,$(@F),$(@D)))
$(syms_targets): %/syms: %/target
# Only hook symbols targets into the main compile graph in automation.
ifdef MOZ_AUTOMATION
ifeq (1,$(MOZ_AUTOMATION_BUILD_SYMBOLS))
recurse_compile: $(syms_targets)
endif
endif
# Create a separate rule that depends on every 'syms' target so that
# symbols can be dumped on demand locally.
.PHONY: recurse_syms
recurse_syms: $(syms_targets)
# Ensure dump_syms gets built before any syms targets, all of which depend on it.
ifneq (,$(filter toolkit/crashreporter/google-breakpad/src/tools/%/dump_syms/host,$(compile_targets)))
$(syms_targets): $(filter toolkit/crashreporter/google-breakpad/src/tools/%/dump_syms/host,$(compile_targets))
endif
# The compile tier has different rules from other tiers.
ifneq ($(CURRENT_TIER),compile)
# Recursion rule for all directories traversed for all subtiers in the
# current tier.
$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): %/$(CURRENT_TIER):
$(call RECURSE,$(CURRENT_TIER),$*)
.PHONY: $(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS))
# Dummy rules for possibly inexisting dependencies for the above tier targets
$(addsuffix /Makefile,$(CURRENT_DIRS)) $(addsuffix /backend.mk,$(CURRENT_DIRS)):
ifeq ($(CURRENT_TIER),export)
# At least build/export requires config/export for buildid, but who knows what
# else, so keep this global dependency to make config/export first for now.
$(addsuffix /$(CURRENT_TIER),$(filter-out config,$(CURRENT_DIRS))): config/$(CURRENT_TIER)
# The export tier requires nsinstall, which is built from config. So every
# subdirectory traversal needs to happen after building nsinstall in config, which
# is done with the config/host target. Note the config/host target only exists if
# nsinstall is actually built, which it is not on Windows, because we use
# nsinstall.py there.
ifdef COMPILE_ENVIRONMENT
ifneq (,$(filter config/host, $(compile_targets)))
$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): config/host
endif
endif
endif
endif # ifeq ($(CURRENT_TIER),compile)
else
# Don't recurse if MAKELEVEL is NO_RECURSE_MAKELEVEL as defined above
ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
$(RUNNABLE_TIERS)::
else
#########################
# Tier traversal handling
#########################
define CREATE_SUBTIER_TRAVERSAL_RULE
.PHONY: $(1)
$(1):: $$(SUBMAKEFILES)
$$(LOOP_OVER_DIRS)
endef
$(foreach subtier,$(filter-out compile,$(RUNNABLE_TIERS)),$(eval $(call CREATE_SUBTIER_TRAVERSAL_RULE,$(subtier))))
ifndef TOPLEVEL_BUILD
ifdef COMPILE_ENVIRONMENT
compile::
@$(MAKE) -C $(DEPTH) compile RECURSE_BASE_DIR=$(relativesrcdir)/
endif # COMPILE_ENVIRONMENT
endif
endif # ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
endif # ifeq (.,$(DEPTH))
recurse:
@$(RECURSED_COMMAND)
$(LOOP_OVER_DIRS)
ifeq (.,$(DEPTH))
# This is required so that the pre-export tier sees the rules in
# mobile/android
ifeq ($(MOZ_WIDGET_TOOLKIT),android)
recurse_pre-export:: mobile/android/pre-export
endif
# CSS2Properties.webidl needs ServoCSSPropList.py from layout/style
dom/bindings/export: layout/style/ServoCSSPropList.py
# Various telemetry histogram files need ServoCSSPropList.py from layout/style
toolkit/components/telemetry/export: layout/style/ServoCSSPropList.py
# The update agent needs to link to the updatecommon library, but the build system does not
# currently have a good way of expressing this dependency.
toolkit/components/updateagent/target: toolkit/mozapps/update/common/target
ifeq ($(TARGET_ENDIANNESS),big)
config/external/icu/data/target-objects: config/external/icu/data/$(MDDEPDIR)/icudt$(MOZ_ICU_VERSION)b.dat.stub
config/external/icu/data/$(MDDEPDIR)/icudt$(MOZ_ICU_VERSION)b.dat.stub: config/external/icu/icupkg/host
endif
ifdef ENABLE_CLANG_PLUGIN
# Only target rules use the clang plugin.
$(filter %/target %/target-objects,$(filter-out config/export config/host build/unix/stdc++compat/% build/clang-plugin/%,$(compile_targets))): build/clang-plugin/host build/clang-plugin/tests/target-objects
build/clang-plugin/tests/target-objects: build/clang-plugin/host
# clang-plugin tests require js-confdefs.h on js standalone builds and mozilla-config.h on
# other builds, because they are -include'd.
ifdef JS_STANDALONE
# The js/src/export target only exists when CURRENT_TIER is export. If we're in a later tier,
# we can assume js/src/export has happened anyways.
ifeq ($(CURRENT_TIER),export)
build/clang-plugin/tests/target-objects: js/src/export
endif
else
build/clang-plugin/tests/target-objects: mozilla-config.h
endif
endif
# Interdependencies that moz.build world don't know about yet for compilation.
# Note some others are hardcoded or "guessed" in recursivemake.py and emitter.py
ifndef MOZ_FOLD_LIBS
ifndef MOZ_SYSTEM_NSS
netwerk/test/http3server/target: security/nss/lib/nss/nss_nss3/target security/nss/lib/ssl/ssl_ssl3/target
endif
ifndef MOZ_SYSTEM_NSPR
netwerk/test/http3server/target: config/external/nspr/pr/target
endif
else
ifndef MOZ_SYSTEM_NSS
netwerk/test/http3server/target: security/target
endif
endif
ifdef MOZ_USING_WASM_SANDBOXING
security/rlbox/target-objects: config/external/wasm2c_sandbox_compiler/host
security/rlbox/target: security/rlbox/target-objects
dom/media/ogg/target-objects extensions/spellcheck/hunspell/glue/target-objects gfx/thebes/target-objects parser/expat/target-objects parser/htmlparser/target-objects gfx/ots/src/target-objects: security/rlbox/target-objects
endif
# Most things are built during compile (target/host), but some things happen during export
# Those need to depend on config/export for system wrappers.
$(addprefix build/unix/stdc++compat/,target host) build/clang-plugin/host: config/export
# Rust targets, and export targets that run cbindgen need
# $topobjdir/.cargo/config to be preprocessed first. Ideally, we'd only set it
# as a dependency of the rust targets, but unfortunately, that pushes Make to
# execute them much later than we'd like them to be when the file doesn't exist
# prior to Make running. So we also set it as a dependency of pre-export, which
# ensures it exists before recursing the rust targets and the export targets
# that run cbindgen, tricking Make into keeping them early.
$(rust_targets): $(DEPTH)/.cargo/config
ifndef TEST_MOZBUILD
pre-export:: $(DEPTH)/.cargo/config
endif
# When building gtest as part of the build (LINK_GTEST_DURING_COMPILE),
# force the build system to get to it first, so that it can be linked
# quickly without LTO, allowing the build system to go ahead with
# plain gkrust and libxul while libxul-gtest is being linked and
# dump-sym'ed.
ifneq (,$(filter toolkit/library/gtest/rust/target,$(compile_targets)))
toolkit/library/rust/target: toolkit/library/gtest/rust/target
endif
endif
|
