gecko-dev/config/recurse.mk
Chris Manchester c346a68ae0 Bug 1474028 - Add a way to exclude libraries from the default build. r=ted
MozReview-Commit-ID: MVfplx9lN2

--HG--
extra : rebase_source : 10b4bd3dcc1386d782531206c84b66207297d00a
2018-08-10 12:07:29 -07:00

202 lines
6.8 KiB
Makefile

# 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.
$(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
# Carefully avoid $(eval) type of rule generation, which makes pymake slower
# than necessary.
# Get current tier and corresponding subtiers from the data in root.mk.
CURRENT_TIER := $(filter $(foreach tier,$(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: $(compile_targets) $(syms_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))
$(TIERS)::
else
#########################
# Tier traversal handling
#########################
define CREATE_SUBTIER_TRAVERSAL_RULE
.PHONY: $(1)
$(1):: $$(SUBMAKEFILES)
$$(LOOP_OVER_DIRS)
endef
$(foreach subtier,$(filter-out compile,$(TIERS)),$(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))
# Interdependencies for parallel export.
js/xpconnect/src/export: dom/bindings/export xpcom/xpidl/export
accessible/xpcom/export: xpcom/xpidl/export
# The Android SDK bindings needs to build the Java generator code
# source code in order to write the SDK bindings.
widget/android/bindings/export: mobile/android/base/export
# The widget JNI wrapper generator code needs to build the GeckoView
# and Fennec source code in order to find JNI wrapper annotations.
widget/android/fennec/export: mobile/android/base/export
widget/android/export: mobile/android/base/export
# .xpt generation needs the xpidl lex/yacc files
xpcom/xpidl/export: xpcom/idl-parser/xpidl/export
# CSS2Properties.webidl needs ServoCSSPropList.py from layout/style
dom/bindings/export: layout/style/export
ifdef ENABLE_CLANG_PLUGIN
$(filter-out config/host build/unix/stdc++compat/% build/clang-plugin/%,$(compile_targets)): build/clang-plugin/host build/clang-plugin/tests/target
build/clang-plugin/tests/target: build/clang-plugin/host
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
ifeq ($(MOZ_WIDGET_TOOLKIT),gtk3)
toolkit/library/target: widget/gtk/mozgtk/gtk3/target
endif
ifdef MOZ_LDAP_XPCOM
ldap/target: security/target mozglue/build/target
toolkit/library/target: ldap/target
endif
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