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Diffstat (limited to 'config/recurse.mk')
| -rw-r--r-- | config/recurse.mk | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/config/recurse.mk b/config/recurse.mk new file mode 100644 index 0000000000..a2e10e6a18 --- /dev/null +++ b/config/recurse.mk @@ -0,0 +1,216 @@ +# 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: $(syms_targets) + +# The compile tier has different rules from other tiers. +ifneq ($(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 ($(MOZ_WIDGET_TOOLKIT),android) +recurse_pre-export: mobile/android/pre-export +endif + +# CSS2Properties.webidl needs ServoCSSPropList.py from layout/style +dom/bindings/export: layout/style/ServoCSSPropList.py + +# Various telemetry histogram files need ServoCSSPropList.py from layout/style +toolkit/components/telemetry/export: layout/style/ServoCSSPropList.py + +ifeq ($(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/%,$(compile_targets))) security/rlbox/pre-compile media/libsoundtouch/src/pre-compile: build/clang-plugin/host build/clang-plugin/tests/target-objects +build/clang-plugin/tests/target-objects: build/clang-plugin/host +# clang-plugin tests require js-confdefs.h on js standalone builds and mozilla-config.h on +# other builds, because they are -include'd. +ifdef JS_STANDALONE +# The js/src/export target only exists when CURRENT_TIER is export. If we're in a later tier, +# we can assume js/src/export has happened anyways. +ifeq ($(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 +ifdef MOZ_USING_WASM_SANDBOXING +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/pre-compile +dom/media/target-objects dom/media/mediasink/target-objects: media/libsoundtouch/src/pre-compile +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 +recurse_pre-export: $(DEPTH)/.cargo/config +endif + +endif |