8132800: clarify stream package documentation regarding sequential vs parallel modes
Reviewed-by: psandoz
#
# Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation. Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#
################################################################################
# This file contains helper functions for Init.gmk.
# It is divided in two parts, depending on if a SPEC is present or not
# (HAS_SPEC is true or not).
################################################################################
ifndef _INITSUPPORT_GMK
_INITSUPPORT_GMK := 1
ifeq ($(HAS_SPEC),)
##############################################################################
# Helper functions for the initial part of Init.gmk, before the spec file is
# loaded. Most of these functions provide parsing and setting up make options
# from the command-line.
##############################################################################
# Make control variables, handled by Init.gmk
INIT_CONTROL_VARIABLES := LOG CONF SPEC JOBS CONF_CHECK
# All known make control variables
MAKE_CONTROL_VARIABLES := $(INIT_CONTROL_VARIABLES) TEST JDK_FILTER
# Define a simple reverse function.
# Should maybe move to MakeBase.gmk, but we can't include that file now.
reverse = \
$(if $(strip $(1)), $(call reverse, $(wordlist 2, $(words $(1)), $(1)))) \
$(firstword $(1))
# The variable MAKEOVERRIDES contains variable assignments from the command
# line, but in reverse order to what the user entered.
COMMAND_LINE_VARIABLES := $(subst \#,\ , $(call reverse, $(subst \ ,\#,$(MAKEOVERRIDES))))
# A list like FOO="val1" BAR="val2" containing all user-supplied make
# variables that we should propagate.
USER_MAKE_VARS := $(filter-out $(addsuffix =%, $(INIT_CONTROL_VARIABLES)), \
$(MAKEOVERRIDES))
# Setup information about available configurations, if any.
build_dir=$(topdir)/build
all_spec_files=$(wildcard $(build_dir)/*/spec.gmk)
# Extract the configuration names from the path
all_confs=$(patsubst %/spec.gmk, %, $(patsubst $(build_dir)/%, %, $(all_spec_files)))
# Check for unknown command-line variables
define CheckControlVariables
command_line_variables := $$(strip $$(foreach var, \
$$(subst \ ,_,$$(MAKEOVERRIDES)), \
$$(firstword $$(subst =, , $$(var)))))
unknown_command_line_variables := $$(strip \
$$(filter-out $$(MAKE_CONTROL_VARIABLES), $$(command_line_variables)))
ifneq ($$(unknown_command_line_variables), )
$$(info Note: Command line contains non-control variables:)
$$(foreach var, $$(unknown_command_line_variables), $$(info * $$(var)=$$($$(var))))
$$(info Make sure it is not mistyped, and that you intend to override this variable.)
$$(info 'make help' will list known control variables.)
$$(info )
endif
endef
# Check for deprecated ALT_ variables
define CheckDeprecatedEnvironment
defined_alt_variables := $$(filter ALT_%, $$(.VARIABLES))
ifneq ($$(defined_alt_variables), )
$$(info Warning: You have the following ALT_ variables set:)
$$(foreach var, $$(defined_alt_variables), $$(info * $$(var)=$$($$(var))))
$$(info ALT_ variables are deprecated, and may result in a failed build.)
$$(info Please clean your environment.)
$$(info )
endif
endef
# Check for invalid make flags like -j
define CheckInvalidMakeFlags
# This is a trick to get this rule to execute before any other rules
# MAKEFLAGS only indicate -j if read in a recipe (!)
$$(topdir)/make/Init.gmk: .FORCE
$$(if $$(findstring --jobserver, $$(MAKEFLAGS)), \
$$(info Error: 'make -jN' is not supported, use 'make JOBS=N') \
$$(error Cannot continue) \
)
.FORCE:
.PHONY: .FORCE
endef
# Check that the CONF_CHECK option is valid and set up handling
define ParseConfCheckOption
ifeq ($$(CONF_CHECK), )
# Default behavior is fail
CONF_CHECK := fail
else ifneq ($$(filter-out auto fail ignore, $$(CONF_CHECK)),)
$$(info Error: CONF_CHECK must be one of: auto, fail or ignore.)
$$(error Cannot continue)
endif
endef
define ParseLogLevel
# Catch old-style VERBOSE= command lines.
ifneq ($$(origin VERBOSE), undefined)
$$(info Error: VERBOSE is deprecated. Use LOG=<warn|info|debug|trace> instead.)
$$(error Cannot continue)
endif
# Setup logging according to LOG
# If the "nofile" argument is given, act on it and strip it away
ifneq ($$(findstring nofile, $$(LOG)),)
LOG_NOFILE := true
# COMMA is defined in spec.gmk, but that is not included yet
COMMA := ,
# First try to remove ",nofile" if it exists, otherwise just remove "nofile"
LOG_STRIPPED := $$(subst nofile,, $$(subst $$(COMMA)nofile,, $$(LOG)))
# We might have ended up with a leading comma. Remove it
LOG_LEVEL := $$(strip $$(patsubst $$(COMMA)%, %, $$(LOG_STRIPPED)))
else
LOG_LEVEL := $$(LOG)
endif
ifeq ($$(LOG_LEVEL),)
# Set LOG to "warn" as default if not set
LOG_LEVEL := warn
endif
ifeq ($$(LOG_LEVEL), warn)
MAKE_LOG_FLAGS := -s
else ifeq ($$(LOG_LEVEL), info)
MAKE_LOG_FLAGS := -s
else ifeq ($$(LOG_LEVEL), debug)
MAKE_LOG_FLAGS :=
else ifeq ($$(LOG_LEVEL), trace)
MAKE_LOG_FLAGS := -d
else
$$(info Error: LOG must be one of: warn, info, debug or trace.)
$$(error Cannot continue)
endif
endef
define ParseConfAndSpec
ifneq ($$(origin SPEC), undefined)
# We have been given a SPEC, check that it works out properly
ifneq ($$(origin CONF), undefined)
# We also have a CONF argument. We can't have both.
$$(info Error: Cannot use CONF=$$(CONF) and SPEC=$$(SPEC) at the same time. Choose one.)
$$(error Cannot continue)
endif
ifeq ($$(wildcard $$(SPEC)),)
$$(info Error: Cannot locate spec.gmk, given by SPEC=$$(SPEC).)
$$(error Cannot continue)
endif
ifeq ($$(filter /%, $$(SPEC)),)
# If given with relative path, make it absolute
SPECS := $$(CURDIR)/$$(strip $$(SPEC))
else
SPECS := $$(SPEC)
endif
# For now, unset this SPEC variable.
override SPEC :=
else
# Use spec.gmk files in the build output directory
ifeq ($$(all_spec_files),)
$$(info Error: No configurations found for $$(topdir).)
$$(info Please run 'bash configure' to create a configuration.)
$$(info )
$$(error Cannot continue)
endif
ifneq ($$(origin CONF), undefined)
# User have given a CONF= argument.
ifeq ($$(CONF),)
# If given CONF=, match all configurations
matching_confs := $$(strip $$(all_confs))
else
# Otherwise select those that contain the given CONF string
matching_confs := $$(strip $$(foreach var, $$(all_confs), \
$$(if $$(findstring $$(CONF), $$(var)), $$(var))))
endif
ifeq ($$(matching_confs),)
$$(info Error: No configurations found matching CONF=$$(CONF).)
$$(info Available configurations in $$(build_dir):)
$$(foreach var, $$(all_confs), $$(info * $$(var)))
$$(error Cannot continue)
else
ifeq ($$(words $$(matching_confs)), 1)
$$(info Building configuration '$$(matching_confs)' (matching CONF=$$(CONF)))
else
$$(info Building these configurations (matching CONF=$$(CONF)):)
$$(foreach var, $$(matching_confs), $$(info * $$(var)))
endif
endif
# Create a SPEC definition. This will contain the path to one or more spec.gmk files.
SPECS := $$(addsuffix /spec.gmk, $$(addprefix $$(build_dir)/, $$(matching_confs)))
else
# No CONF or SPEC given, check the available configurations
ifneq ($$(words $$(all_spec_files)), 1)
$$(info Error: No CONF given, but more than one configuration found.)
$$(info Available configurations in $$(build_dir):)
$$(foreach var, $$(all_confs), $$(info * $$(var)))
$$(info Please retry building with CONF=<config pattern> (or SPEC=<spec file>).)
$$(info )
$$(error Cannot continue)
endif
# We found exactly one configuration, use it
SPECS := $$(strip $$(all_spec_files))
endif
endif
endef
# Extract main targets from Main.gmk using the spec provided in $2.
#
# Param 1: FORCE = force generation of main-targets.gmk or LAZY = do not force.
# Param 2: The SPEC file to use.
define DefineMainTargets
# We will start by making sure the main-targets.gmk file is removed, if
# make has not been restarted. By the -include, we will trigger the
# rule for generating the file (which is never there since we removed it),
# thus generating it fresh, and make will restart, incrementing the restart
# count.
main_targets_file := $$(dir $(strip $2))make-support/main-targets.gmk
ifeq ($$(MAKE_RESTARTS),)
# Only do this if make has not been restarted, and if we do not force it.
ifeq ($(strip $1), FORCE)
$$(shell rm -f $$(main_targets_file))
endif
endif
$$(main_targets_file):
@( cd $$(topdir) && \
$$(MAKE) $$(MAKE_LOG_FLAGS) -r -R -f $$(topdir)/make/Main.gmk \
-I $$(topdir)/make/common SPEC=$(strip $2) NO_RECIPES=true \
LOG_LEVEL=$$(LOG_LEVEL) \
create-main-targets-include )
# Now include main-targets.gmk. This will define ALL_MAIN_TARGETS.
-include $$(main_targets_file)
endef
define PrintConfCheckFailed
@echo ' '
@echo "Please rerun configure! Easiest way to do this is by running"
@echo "'make reconfigure'."
@echo "This behavior may also be changed using CONF_CHECK=<ignore|auto>."
@echo ' '
endef
else # $(HAS_SPEC)=true
##############################################################################
# Helper functions for the 'main' target. These functions assume a single,
# proper and existing SPEC is included.
##############################################################################
include $(SRC_ROOT)/make/common/MakeBase.gmk
# Define basic logging setup
BUILD_LOG := $(OUTPUT_ROOT)/build.log
BUILD_TRACE_LOG := $(OUTPUT_ROOT)/build-trace-time.log
BUILD_LOG_WRAPPER := $(BASH) $(SRC_ROOT)/common/bin/logger.sh $(BUILD_LOG)
# Disable the build log wrapper on sjavac+windows until
# we have solved how to prevent the log wrapper to wait
# for the background sjavac server process.
ifeq ($(ENABLE_SJAVAC)X$(OPENJDK_BUILD_OS),yesXwindows)
LOG_NOFILE := true
endif
# Sanity check the spec file, so it matches this source code
define CheckSpecSanity
ifneq ($$(ACTUAL_TOPDIR), $$(TOPDIR))
ifneq ($$(ACTUAL_TOPDIR), $$(ORIGINAL_TOPDIR))
ifneq ($$(ACTUAL_TOPDIR), $$(CANONICAL_TOPDIR))
$$(info Error: SPEC mismatch! Current working directory)
$$(info $$(ACTUAL_TOPDIR))
$$(info does not match either TOPDIR, ORIGINAL_TOPDIR or CANONICAL_TOPDIR)
$$(info $$(TOPDIR))
$$(info $$(ORIGINAL_TOPDIR))
$$(info $$(CANONICAL_TOPDIR))
$$(error Cannot continue)
endif
endif
endif
endef
define RotateLogFiles
$(RM) $(BUILD_LOG).old 2> /dev/null
$(MV) $(BUILD_LOG) $(BUILD_LOG).old 2> /dev/null || true
$(if $(findstring trace, $(LOG_LEVEL)), \
$(RM) $(BUILD_TRACE_LOG).old 2> /dev/null && \
$(MV) $(BUILD_TRACE_LOG) $(BUILD_TRACE_LOG).old 2> /dev/null || true \
)
endef
# Remove any javac server logs and port files. This
# prevents a new make run to reuse the previous servers.
define PrepareSmartJavac
$(if $(SJAVAC_SERVER_DIR), \
$(RM) -r $(SJAVAC_SERVER_DIR) 2> /dev/null && \
$(MKDIR) -p $(SJAVAC_SERVER_DIR) \
)
endef
define CleanupSmartJavac
[ -f $(SJAVAC_SERVER_DIR)/server.port ] && $(ECHO) Stopping sjavac server && \
$(TOUCH) $(SJAVAC_SERVER_DIR)/server.port.stop; true
endef
define StartGlobalTimer
$(RM) -r $(BUILDTIMESDIR) 2> /dev/null
$(MKDIR) -p $(BUILDTIMESDIR)
$(call RecordStartTime,TOTAL)
endef
define StopGlobalTimer
$(call RecordEndTime,TOTAL)
endef
# Find all build_time_* files and print their contents in a list sorted
# on the name of the sub repository.
define ReportBuildTimes
$(BUILD_LOG_WRAPPER) $(PRINTF) $(LOG_INFO) -- \
"----- Build times -------\nStart %s\nEnd %s\n%s\n%s\n-------------------------\n" \
"`$(CAT) $(BUILDTIMESDIR)/build_time_start_TOTAL_human_readable`" \
"`$(CAT) $(BUILDTIMESDIR)/build_time_end_TOTAL_human_readable`" \
"`$(LS) $(BUILDTIMESDIR)/build_time_diff_* | $(GREP) -v _TOTAL | \
$(XARGS) $(CAT) | $(SORT) -k 2`" \
"`$(CAT) $(BUILDTIMESDIR)/build_time_diff_TOTAL`"
endef
endif # HAS_SPEC
endif # _INITSUPPORT_GMK