gecko-dev/config/config.mk
Mike Shal 8d4c5d5849 Bug 1454912 - Use a .stub file as the target for all GENERATED_FILES rules; r=nalexander
The make backend was treating the first output of a GENERATED_FILES rule
specially, since it was the target of the rule containing the script
invocation. We want the outputs of GENERATED_FILES rules to be
FileAvoidWrite so that we avoid triggering downstream rules if the
outputs are unchanged, but if the target of the script invocation is
FileAvoidWrite, then make may continually re-run the script during a
no-op build.

The solution here is to use a stub file as the target of the script
invocation which will always be touched when the script runs. Since
nothing else in the build depends on the stub, we don't need to
FileAvoidWrite it. All actual outputs of the script can be
FileAvoidWrite, and make can properly avoid work for files that haven't
changed.

MozReview-Commit-ID: 3GejZw2tpqu

--HG--
extra : rebase_source : 2b9be82f893e89a4c2f254f05b1e8b9a0f9c631b
2018-05-09 08:24:31 -04:00

499 lines
14 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/.
#
# config.mk
#
# Determines the platform and builds the macros needed to load the
# appropriate platform-specific .mk file, then defines all (most?)
# of the generic macros.
#
# Define an include-at-most-once flag
ifdef INCLUDED_CONFIG_MK
$(error Do not include config.mk twice!)
endif
INCLUDED_CONFIG_MK = 1
EXIT_ON_ERROR = set -e; # Shell loops continue past errors without this.
ifndef topsrcdir
topsrcdir = $(DEPTH)
endif
ifndef INCLUDED_AUTOCONF_MK
include $(DEPTH)/config/autoconf.mk
endif
-include $(DEPTH)/.mozconfig.mk
# MDDEPDIR is the subdirectory where dependency files are stored
MDDEPDIR := .deps
ifndef EXTERNALLY_MANAGED_MAKE_FILE
# Import the automatically generated backend file. If this file doesn't exist,
# the backend hasn't been properly configured. We want this to be a fatal
# error, hence not using "-include".
ifndef STANDALONE_MAKEFILE
GLOBAL_DEPS += backend.mk
include backend.mk
endif
endif
space = $(NULL) $(NULL)
# Include defs.mk files that can be found in $(srcdir)/$(DEPTH),
# $(srcdir)/$(DEPTH-1), $(srcdir)/$(DEPTH-2), etc., and $(srcdir)
# where $(DEPTH-1) is one level less of depth, $(DEPTH-2), two, etc.
# i.e. for DEPTH=../../.., DEPTH-1 is ../.. and DEPTH-2 is ..
# These defs.mk files are used to define variables in a directory
# and all its subdirectories, recursively.
__depth := $(subst /, ,$(DEPTH))
ifeq (.,$(__depth))
__depth :=
endif
$(foreach __d,$(__depth) .,$(eval __depth = $(wordlist 2,$(words $(__depth)),$(__depth))$(eval -include $(subst $(space),/,$(strip $(srcdir) $(__depth) defs.mk)))))
COMMA = ,
# Sanity check some variables
CHECK_VARS := \
XPI_NAME \
LIBRARY_NAME \
MODULE \
DEPTH \
XPI_PKGNAME \
INSTALL_EXTENSION_ID \
SHARED_LIBRARY_NAME \
SONAME \
STATIC_LIBRARY_NAME \
$(NULL)
# checks for internal spaces or trailing spaces in the variable
# named by $x
check-variable = $(if $(filter-out 0 1,$(words $($(x))z)),$(error Spaces are not allowed in $(x)))
$(foreach x,$(CHECK_VARS),$(check-variable))
ifndef INCLUDED_FUNCTIONS_MK
include $(MOZILLA_DIR)/config/makefiles/functions.mk
endif
RM = rm -f
# FINAL_TARGET specifies the location into which we copy end-user-shipped
# build products (typelibs, components, chrome). It may already be specified by
# a moz.build file.
#
# If XPI_NAME is set, the files will be shipped to $(DIST)/xpi-stage/$(XPI_NAME)
# instead of $(DIST)/bin. In both cases, if DIST_SUBDIR is set, the files will be
# shipped to a $(DIST_SUBDIR) subdirectory.
FINAL_TARGET ?= $(if $(XPI_NAME),$(DIST)/xpi-stage/$(XPI_NAME),$(DIST)/bin)$(DIST_SUBDIR:%=/%)
# Override the stored value for the check to make sure that the variable is not
# redefined in the Makefile.in value.
FINAL_TARGET_FROZEN := '$(FINAL_TARGET)'
ifdef XPI_NAME
ACDEFINES += -DXPI_NAME=$(XPI_NAME)
endif
# The VERSION_NUMBER is suffixed onto the end of the DLLs we ship.
VERSION_NUMBER = 50
ifeq ($(HOST_OS_ARCH),WINNT)
ifeq ($(MOZILLA_DIR),$(topsrcdir))
win_srcdir := $(subst $(topsrcdir),$(WIN_TOP_SRC),$(srcdir))
else
# This means we're in comm-central's topsrcdir, so we need to adjust
# WIN_TOP_SRC (which points to mozilla's topsrcdir) for the substitution
# to win_srcdir.
cc_WIN_TOP_SRC := $(WIN_TOP_SRC:%/mozilla=%)
win_srcdir := $(subst $(topsrcdir),$(cc_WIN_TOP_SRC),$(srcdir))
endif
BUILD_TOOLS = $(WIN_TOP_SRC)/build/unix
else
win_srcdir := $(srcdir)
BUILD_TOOLS = $(MOZILLA_DIR)/build/unix
endif
CONFIG_TOOLS = $(MOZ_BUILD_ROOT)/config
AUTOCONF_TOOLS = $(MOZILLA_DIR)/build/autoconf
ifdef _MSC_VER
# clang-cl is smart enough to generate dependencies directly.
ifndef CLANG_CL
CC_WRAPPER ?= $(call py_action,cl)
CXX_WRAPPER ?= $(call py_action,cl)
endif # CLANG_CL
endif # _MSC_VER
CC := $(CC_WRAPPER) $(CC)
CXX := $(CXX_WRAPPER) $(CXX)
MKDIR ?= mkdir
SLEEP ?= sleep
TOUCH ?= touch
PYTHON_PATH = $(PYTHON) $(topsrcdir)/config/pythonpath.py
#
# Build using PIC by default
#
_ENABLE_PIC=1
# Don't build SIMPLE_PROGRAMS with PGO, since they don't need it anyway,
# and we don't have the same build logic to re-link them in the second pass.
ifdef SIMPLE_PROGRAMS
NO_PROFILE_GUIDED_OPTIMIZE = 1
endif
# No sense in profiling unit tests
ifdef CPP_UNIT_TESTS
NO_PROFILE_GUIDED_OPTIMIZE = 1
endif
# Enable profile-based feedback
ifneq (1,$(NO_PROFILE_GUIDED_OPTIMIZE))
ifdef MOZ_PROFILE_GENERATE
PGO_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_GEN_CFLAGS))
PGO_LDFLAGS += $(PROFILE_GEN_LDFLAGS)
ifeq (WINNT,$(OS_ARCH))
AR_FLAGS += -LTCG
endif
endif # MOZ_PROFILE_GENERATE
ifdef MOZ_PROFILE_USE
PGO_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_USE_CFLAGS))
PGO_LDFLAGS += $(PROFILE_USE_LDFLAGS)
ifeq (WINNT,$(OS_ARCH))
AR_FLAGS += -LTCG
endif
endif # MOZ_PROFILE_USE
endif # NO_PROFILE_GUIDED_OPTIMIZE
LOCALE_TOPDIR ?= $(topsrcdir)
MAKE_JARS_FLAGS = \
-t $(LOCALE_TOPDIR) \
-f $(MOZ_JAR_MAKER_FILE_FORMAT) \
$(NULL)
ifdef USE_EXTENSION_MANIFEST
MAKE_JARS_FLAGS += -e
endif
TAR_CREATE_FLAGS = -chf
#
# Default command macros; can be overridden in <arch>.mk.
#
CCC = $(CXX)
INCLUDES = \
-I$(srcdir) \
-I$(CURDIR) \
$(LOCAL_INCLUDES) \
-I$(ABS_DIST)/include \
$(NULL)
include $(MOZILLA_DIR)/config/static-checking-config.mk
LDFLAGS = $(COMPUTED_LDFLAGS) $(PGO_LDFLAGS) $(MK_LDFLAGS)
COMPILE_CFLAGS = $(COMPUTED_CFLAGS) $(PGO_CFLAGS) $(_DEPEND_CFLAGS) $(MK_COMPILE_DEFINES)
COMPILE_CXXFLAGS = $(COMPUTED_CXXFLAGS) $(PGO_CFLAGS) $(_DEPEND_CFLAGS) $(MK_COMPILE_DEFINES)
COMPILE_CMFLAGS = $(OS_COMPILE_CMFLAGS) $(MOZBUILD_CMFLAGS)
COMPILE_CMMFLAGS = $(OS_COMPILE_CMMFLAGS) $(MOZBUILD_CMMFLAGS)
ASFLAGS = $(COMPUTED_ASFLAGS)
SFLAGS = $(COMPUTED_SFLAGS)
HOST_CFLAGS = $(COMPUTED_HOST_CFLAGS) $(_DEPEND_CFLAGS)
HOST_CXXFLAGS = $(COMPUTED_HOST_CXXFLAGS) $(_DEPEND_CFLAGS)
HOST_C_LDFLAGS = $(COMPUTED_HOST_C_LDFLAGS)
HOST_CXX_LDFLAGS = $(COMPUTED_HOST_CXX_LDFLAGS)
# We only add color flags if neither the flag to disable color
# (e.g. "-fno-color-diagnostics" nor a flag to control color
# (e.g. "-fcolor-diagnostics=never") is present.
define colorize_flags
ifeq (,$(filter $(COLOR_CFLAGS:-f%=-fno-%),$$(1))$(findstring $(COLOR_CFLAGS),$$(1)))
$(1) += $(COLOR_CFLAGS)
endif
endef
color_flags_vars := \
COMPILE_CFLAGS \
COMPILE_CXXFLAGS \
COMPILE_CMFLAGS \
COMPILE_CMMFLAGS \
LDFLAGS \
$(NULL)
ifdef MACH_STDOUT_ISATTY
ifdef COLOR_CFLAGS
# TODO Bug 1319166 - iTerm2 interprets some bytes sequences as a
# request to show a print dialog. Don't enable color on iTerm2 until
# a workaround is in place.
ifneq ($(TERM_PROGRAM),iTerm.app)
$(foreach var,$(color_flags_vars),$(eval $(call colorize_flags,$(var))))
endif
endif
endif
#
# Name of the binary code directories
#
# Override defaults
DEPENDENCIES = .md
ifdef MACOSX_DEPLOYMENT_TARGET
export MACOSX_DEPLOYMENT_TARGET
endif # MACOSX_DEPLOYMENT_TARGET
# Export to propagate to cl and submake for third-party code.
# Eventually, we'll want to just use -I.
ifdef INCLUDE
export INCLUDE
endif
# Export to propagate to link.exe and submake for third-party code.
# Eventually, we'll want to just use -LIBPATH.
ifdef LIB
export LIB
endif
ifdef MOZ_USING_CCACHE
ifdef CLANG_CXX
export CCACHE_CPP2=1
endif
endif
# Set link flags according to whether we want a console.
ifeq ($(OS_ARCH),WINNT)
ifdef MOZ_WINCONSOLE
ifeq ($(MOZ_WINCONSOLE),1)
WIN32_EXE_LDFLAGS += $(WIN32_CONSOLE_EXE_LDFLAGS)
else # MOZ_WINCONSOLE
WIN32_EXE_LDFLAGS += $(WIN32_GUI_EXE_LDFLAGS)
endif
else
# For setting subsystem version
WIN32_EXE_LDFLAGS += $(WIN32_CONSOLE_EXE_LDFLAGS)
endif
endif # WINNT
ifdef _MSC_VER
ifeq ($(CPU_ARCH),x86_64)
ifdef MOZ_ASAN
# ASan could have 3x stack memory usage of normal builds.
WIN32_EXE_LDFLAGS += -STACK:6291456
else
# set stack to 2MB on x64 build. See bug 582910
WIN32_EXE_LDFLAGS += -STACK:2097152
endif
endif
endif
-include $(topsrcdir)/$(MOZ_BUILD_APP)/app-config.mk
######################################################################
GARBAGE += $(DEPENDENCIES) core $(wildcard core.[0-9]*) $(wildcard *.err) $(wildcard *.pure) $(wildcard *_pure_*.o) Templates.DB
ifeq ($(OS_ARCH),Darwin)
ifndef NSDISTMODE
NSDISTMODE=absolute_symlink
endif
PWD := $(CURDIR)
endif
NSINSTALL_PY := $(PYTHON) $(abspath $(MOZILLA_DIR)/config/nsinstall.py)
ifneq (,$(or $(filter WINNT,$(HOST_OS_ARCH)),$(if $(COMPILE_ENVIRONMENT),,1)))
NSINSTALL = $(NSINSTALL_PY)
else
NSINSTALL = $(DEPTH)/config/nsinstall$(HOST_BIN_SUFFIX)
endif # WINNT
ifeq (,$(CROSS_COMPILE)$(filter-out WINNT, $(OS_ARCH)))
INSTALL = $(NSINSTALL) -t
else
# This isn't laid out as conditional directives so that NSDISTMODE can be
# target-specific.
INSTALL = $(if $(filter absolute_symlink, $(NSDISTMODE)), $(NSINSTALL) -L $(PWD), $(NSINSTALL) -R)
endif # WINNT
# The default for install_cmd is simply INSTALL
install_cmd ?= $(INSTALL) $(1)
# Use nsinstall in copy mode to install files on the system
SYSINSTALL = $(NSINSTALL) -t
# This isn't necessarily true, just here
sysinstall_cmd = install_cmd
#
# Localization build automation
#
# Because you might wish to "make locales AB_CD=ab-CD", we don't hardcode
# MOZ_UI_LOCALE directly, but use an intermediate variable that can be
# overridden by the command line. (Besides, AB_CD is prettier).
AB_CD = $(MOZ_UI_LOCALE)
include $(MOZILLA_DIR)/config/AB_rCD.mk
# Many locales directories want this definition.
ACDEFINES += -DAB_CD=$(AB_CD)
ifndef L10NBASEDIR
L10NBASEDIR = $(error L10NBASEDIR not defined by configure)
endif
EXPAND_LOCALE_SRCDIR = $(if $(filter en-US,$(AB_CD)),$(LOCALE_TOPDIR)/$(1)/en-US,$(or $(realpath $(L10NBASEDIR)),$(abspath $(L10NBASEDIR)))/$(AB_CD)/$(subst /locales,,$(1)))
ifdef relativesrcdir
LOCALE_RELATIVEDIR ?= $(relativesrcdir)
endif
ifdef LOCALE_RELATIVEDIR
LOCALE_SRCDIR ?= $(call EXPAND_LOCALE_SRCDIR,$(LOCALE_RELATIVEDIR))
endif
ifdef relativesrcdir
MAKE_JARS_FLAGS += --relativesrcdir=$(LOCALE_RELATIVEDIR)
ifneq (en-US,$(AB_CD))
ifdef IS_LANGUAGE_REPACK
MAKE_JARS_FLAGS += --locale-mergedir=$(REAL_LOCALE_MERGEDIR)
endif
ifdef IS_LANGUAGE_REPACK
MAKE_JARS_FLAGS += --l10n-base=$(L10NBASEDIR)/$(AB_CD)
endif
else
MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
endif # en-US
else
MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
endif # ! relativesrcdir
ifdef IS_LANGUAGE_REPACK
MERGE_FILE = $(firstword \
$(wildcard $(REAL_LOCALE_MERGEDIR)/$(subst /locales,,$(LOCALE_RELATIVEDIR))/$(1)) \
$(wildcard $(LOCALE_SRCDIR)/$(1)) \
$(srcdir)/en-US/$(1) )
# Like MERGE_FILE, but with the specified relative source directory
# $(2) replacing $(srcdir). It's expected that $(2) will include
# '/locales' but not '/locales/en-US'.
#
# MERGE_RELATIVE_FILE and MERGE_FILE could be -- ahem -- merged by
# making the second argument optional, but that expression makes for
# difficult to read Make.
MERGE_RELATIVE_FILE = $(firstword \
$(wildcard $(REAL_LOCALE_MERGEDIR)/$(subst /locales,,$(2))/$(1)) \
$(wildcard $(call EXPAND_LOCALE_SRCDIR,$(2))/$(1)) \
$(topsrcdir)/$(2)/en-US/$(1) )
else
MERGE_FILE = $(LOCALE_SRCDIR)/$(1)
MERGE_RELATIVE_FILE = $(call EXPAND_LOCALE_SRCDIR,$(2))/$(1)
endif
ifneq (WINNT,$(OS_ARCH))
RUN_TEST_PROGRAM = $(DIST)/bin/run-mozilla.sh
endif # ! WINNT
#
# Java macros
#
# Make sure any compiled classes work with at least JVM 1.4
JAVAC_FLAGS += -source 1.4
ifdef MOZ_DEBUG
JAVAC_FLAGS += -g
endif
# $(call CHECK_SYMBOLS,lib,PREFIX,dep_name,test)
# Checks that the given `lib` doesn't contain dependency on symbols with a
# version starting with `PREFIX`_ and matching the `test`. `dep_name` is only
# used for the error message.
# `test` is an awk expression using the information in the variable `v` which
# contains a list of version items ([major, minor, ...]).
define CHECK_SYMBOLS
@$(TOOLCHAIN_PREFIX)readelf -sW $(1) | \
awk '$$8 ~ /@$(2)_/ { \
split($$8,a,"@"); \
split(a[2],b,"_"); \
split(b[2],v,"."); \
if ($(4)) { \
if (!found) { \
print "TEST-UNEXPECTED-FAIL | check_stdcxx | We do not want these $(3) symbol versions to be used:" \
} \
print " ",$$8; \
found=1 \
} \
} \
END { \
if (found) { \
exit(1) \
} \
}'
endef
ifneq (,$(MOZ_LIBSTDCXX_TARGET_VERSION)$(MOZ_LIBSTDCXX_HOST_VERSION))
CHECK_STDCXX = $(call CHECK_SYMBOLS,$(1),GLIBCXX,libstdc++,v[1] > 3 || (v[1] == 3 && v[2] == 4 && v[3] > 16))
CHECK_GLIBC = $(call CHECK_SYMBOLS,$(1),GLIBC,libc,v[1] > 2 || (v[1] == 2 && v[2] > 12))
endif
ifeq (,$(filter $(OS_TARGET),WINNT Darwin))
CHECK_TEXTREL = @$(TOOLCHAIN_PREFIX)readelf -d $(1) | grep TEXTREL > /dev/null && echo 'TEST-UNEXPECTED-FAIL | check_textrel | We do not want text relocations in libraries and programs' || true
endif
ifeq ($(MOZ_WIDGET_TOOLKIT),android)
# While this is very unlikely (libc being added by the compiler at the end
# of the linker command line), if libmozglue.so ends up after libc.so, all
# hell breaks loose, so better safe than sorry, and check it's actually the
# case.
CHECK_MOZGLUE_ORDER = @$(TOOLCHAIN_PREFIX)readelf -d $(1) | grep NEEDED | awk '{ libs[$$NF] = ++n } END { if (libs["[libmozglue.so]"] && libs["[libc.so]"] < libs["[libmozglue.so]"]) { print "libmozglue.so must be linked before libc.so"; exit 1 } }'
endif
define CHECK_BINARY
$(call CHECK_GLIBC,$(1))
$(call CHECK_STDCXX,$(1))
$(call CHECK_TEXTREL,$(1))
$(call LOCAL_CHECKS,$(1))
$(call CHECK_MOZGLUE_ORDER,$(1))
endef
# autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
# this file
OBJ_SUFFIX := $(_OBJ_SUFFIX)
OBJS_VAR_SUFFIX := OBJS
# PGO builds with GCC build objects with instrumentation in a first pass,
# then objects optimized, without instrumentation, in a second pass. If
# we overwrite the objects from the first pass with those from the second,
# we end up not getting instrumentation data for better optimization on
# incremental builds. As a consequence, we use a different object suffix
# for the first pass.
ifdef MOZ_PROFILE_GENERATE
ifdef GNU_CC
OBJS_VAR_SUFFIX := PGO_OBJS
ifndef NO_PROFILE_GUIDED_OPTIMIZE
OBJ_SUFFIX := i_o
endif
endif
endif
PLY_INCLUDE = -I$(MOZILLA_DIR)/other-licenses/ply
export CL_INCLUDES_PREFIX
# Make sure that the build system can handle non-ASCII characters
# in environment variables to prevent it from breking silently on
# non-English systems.
export NONASCII