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crosstool-ng
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crosstool-ng/ct-ng.in

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Makefile
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#!@MAKE@ -rf
# vim: set filetype=make noet :
# Makefile for crosstool-NG.
# Copyright 2006 Yann E. MORIN <yann.morin.1998@free.fr>
# Don't print directory as we descend into them
# Don't use built-in rules, we know what we're doing
MAKEFLAGS += --no-print-directory --no-builtin-rules
# Don't go parallel
.NOTPARALLEL:
# This is where ct-ng is:
export CT_NG:=$(abspath $(lastword $(MAKEFILE_LIST)))
# and this is where we're working in:
export CT_TOP_DIR:=$(shell pwd)
ifeq (@enable_local@,yes)
# automake does not allow to set pkgxxxdir, they are always derived from
# a respective xxxdir. So, for enable-local case, set them directly here.
export CT_LIB_DIR:=$(patsubst %/,%,$(dir $(CT_NG)))
export CT_LIBEXEC_DIR:=$(CT_LIB_DIR)/kconfig
export CT_DOC_DIR:=$(CT_LIB_DIR)/docs
export CT_LICENSE_DIR
else
# Paths and values set by ./configure
# Don't bother to change it other than with a new ./configure!
export CT_LIB_DIR:=@pkgdatadir@
export CT_LIBEXEC_DIR:=@pkglibexecdir@
export CT_DOC_DIR:=@docdir@
endif
# This is crosstool-NG version string
export CT_VERSION:=@PACKAGE_VERSION@
# Export with an empty value: this masks the version detection variable in
# user-visible configurators, and suppresses a warning from kconfig.
export CT_VCHECK=
# Current version of the configuration file. Defined here, because we also
# need to pass it to the upgrade script - which may receive an input that
# was not preprocessed by kconfig, and hence have no string for "up-to-date"
# version.
export CT_CONFIG_VERSION_CURRENT=4
# Download agents used by scripts.mk
CT_WGET := @wget@
CT_CURL := @curl@
# Paths found by ./configure
export install = @INSTALL@
export bash = @BASH_SHELL@
export awk = @AWK@
export grep = @GREP@
export make = @MAKE@
export sed = @SED@
export libtool = @LIBTOOL@
export libtoolize = @LIBTOOLIZE@
export objcopy = @OBJCOPY@
export objdump = @OBJDUMP@
export readelf = @READELF@
export patch = @PATCH@
# Some distributions (eg. Ubuntu) thought it wise to point /bin/sh to
# a truly POSIX-conforming shell, ash in this case. This is not so good
# as we, smart (haha!) developers (as smart we ourselves think we are),
# got used to bashisms, and are inclined to easiness... So force use of
# bash.
export SHELL=$(bash)
# Make the restart/stop steps available to scripts/crostool-NG.sh
export CT_STOP:=$(STOP)
export CT_RESTART:=$(RESTART)
SILENT=@
CT_ECHO=echo
ifeq ($(strip $(origin V)),command line)
ifeq ($(strip $(V)),0)
SILENT=@
CT_ECHO=:
else
ifeq ($(strip $(V)),1)
SILENT=
CT_ECHO=:
else
ifeq ($(strip $(V)),2)
SILENT=
CT_ECHO=echo
endif # V == 2
endif # V== 1
endif # V == 0
endif # origin V
export V SILENT CT_ECHO
all: help
.PHONY: $(PHONY)
PHONY += all
FORCE:
# Configuration rules. Currently, saveSample.sh uses some of the variables
# below - they should be passed explicitly.
# Top file of crosstool-NG configuration
export KCONFIG_TOP = $(CT_LIB_DIR)/config/config.in
CONF := $(CT_LIBEXEC_DIR)/conf
CONF-menuconfig := $(CT_LIBEXEC_DIR)/mconf
CONF-nconfig := $(CT_LIBEXEC_DIR)/nconf
# Used by conf/mconf/nconf to find the .in files
# TBD needed? We do supply the defconfig name explicitly below
export srctree=$(CT_LIB_DIR)
.PHONY: menuconfig nconfig oldconfig olddefconfig savedefconfig defconfig check-config extractconfig
.PHONY: upgradeconfig
check-config:
@[ ! -e .config -o -f .config ] || { echo ".config is not a regular file:"; ls -dl .config; exit 1; } >&2
menuconfig nconfig: check-config
@$(CT_ECHO) " CONF $@"
$(SILENT)if [ ! -f .config ] || CT_VCHECK=strict $(bash) $(CT_LIB_DIR)/scripts/version-check.sh .config; then \
$(CONF-$@) $(KCONFIG_TOP); \
else \
CT_VCHECK=warning $(CONF-$@) $(KCONFIG_TOP); \
fi
oldconfig: .config check-config
@$(CT_ECHO) " CONF $@"
@$(bash) $(CT_LIB_DIR)/scripts/version-check.sh .config
$(SILENT)$(CONF) --syncconfig $(KCONFIG_TOP)
olddefconfig: .config check-config
@$(CT_ECHO) " CONF $@"
@$(bash) $(CT_LIB_DIR)/scripts/version-check.sh .config
$(SILENT)$(CONF) --$@ $(KCONFIG_TOP)
savedefconfig: .config check-config
@$(CT_ECHO) ' GEN $@'
$(SILENT)CT_VCHECK=save $(CONF) --savedefconfig=$${DEFCONFIG-defconfig} $(KCONFIG_TOP)
defconfig: check-config
@$(CT_ECHO) ' CONF $@'
$(SILENT)CT_VCHECK=save $(CONF) --defconfig=$${DEFCONFIG-defconfig} $(KCONFIG_TOP)
upgradeconfig: .config check-config
$(SILENT)cp .config .config.before-upgrade
$(SILENT)CT_UPGRADECONFIG=yes $(bash) $(CT_LIB_DIR)/scripts/version-check.sh .config
@$(CT_ECHO) "Saving .config as .config.before-olddefconfig before running 'ct-ng olddefconfig'"
$(SILENT)cp .config .config.before-olddefconfig
$(SILENT)$(CONF) --olddefconfig $(KCONFIG_TOP)
@$(CT_ECHO) "Done. You may now run 'ct-ng menuconfig' to edit the configuration."
# Always be silent, the stdout an be >.config
extractconfig:
@$(awk) 'BEGIN { dump=0; } \
dump==1 && $$0~/^\[.....\][[:space:]]+(# )?CT_/ { \
$$1=""; \
gsub("^[[:space:]]",""); \
print; \
} \
$$0~/Dumping user-supplied crosstool-NG configuration: done in/ { \
dump=0; \
} \
$$0~/Dumping user-supplied crosstool-NG configuration$$/ { \
dump=1; \
}'
# Help system
help:: help-head help-config help-samples help-build help-clean help-distrib help-env help-tail
help-head:: version
@echo 'See below for a list of available actions, listed by category:'
help-config::
@echo
@echo 'Configuration actions:'
help-samples::
@echo
@echo 'Preconfigured toolchains (#: force number of // jobs):'
help-build::
@echo
@echo 'Build actions (#: force number of // jobs):'
@echo ' list-steps - List all build steps'
help-clean::
@echo
@echo 'Clean actions:'
help-distrib::
@echo
@echo 'Distribution actions:'
help-env::
@echo
@if [ -r "@docdir@/manual/4_Building.md" ]; then \
echo 'Environment variables (see @docdir@/0 - Table of content.txt):'; \
else \
echo 'Environment variables (see http://crosstool-ng.github.io/docs/build/)'; \
fi
@echo ' STOP=step - Stop the build just after this step (list with list-steps)'
@echo ' RESTART=step - Restart the build just before this step (list with list-steps)'
help-tail::
@echo
@echo 'Use action "menuconfig" to configure your toolchain'
@echo 'Use action "build" to build your toolchain'
@echo 'Use action "version" to see the version'
@echo 'See "man 1 $(notdir $(CT_NG))" for some help as well'
help-build::
@echo ' source - Download sources for currently configured toolchain'
@echo ' build[.#] - Build the currently configured toolchain'
help-clean::
@echo ' clean - Remove generated files'
@echo ' distclean - Remove generated files, configuration and build directories'
include $(CT_LIB_DIR)/samples/samples.mk
include $(CT_LIB_DIR)/scripts/scripts.mk
help-config::
@echo ' menuconfig - Update current config using a menu based program'
@echo ' nconfig - Update current config using a menu based program'
@echo ' oldconfig - Update current config using a provided .config as base'
@echo ' upgradeconfig - Upgrade config file to current crosstool-NG'
@echo ' extractconfig - Extract to stdout the configuration items from a'
@echo ' build.log file piped to stdin'
@echo ' savedefconfig - Save current config as a mini-defconfig to $${DEFCONFIG}'
@echo ' defconfig - Update config from a mini-defconfig $${DEFCONFIG}'
@echo ' (default: $${DEFCONFIG}=./defconfig)'
@echo ' show-tuple - Print the tuple of the currently configured toolchain'
help-distrib::
help-env::
@echo ' V=0|1|2|<unset> - <unset> show only human-readable messages (default)'
@echo ' 0 => do not show commands or human-readable message'
@echo ' 1 => show only the commands being executed'
@echo ' 2 => show both'
# End help system
.config:
@echo "There is no existing .config file!"
@echo "You need to either run 'menuconfig',"
@echo "or configure an existing sample."
@false
show-tuple: .config
$(SILENT)$(bash) $(CT_LIB_DIR)/scripts/show-tuple.sh '$${CT_TARGET}'
# Actual build
source: .config
$(SILENT)CT_SOURCE=y $(bash) $(CT_LIB_DIR)/scripts/crosstool-NG.sh
build: .config
$(SILENT)BUILD_NCPUS=`@CPU_COUNT@ 2>/dev/null || echo 0` \
$(bash) $(CT_LIB_DIR)/scripts/crosstool-NG.sh
build.%:
$(SILENT)$(MAKE) -rf $(CT_NG) build CT_JOBS=$*
# The _for_build steps are noop for native and cross,
# but are actual steps for canadian and cross-native.
# Please keep the last line with a '\' and keep the following empty line:
# it helps when diffing and merging.
CT_STEPS := \
companion_tools_for_build \
companion_libs_for_build \
binutils_for_build \
companion_tools_for_host \
companion_libs_for_host \
binutils_for_host \
libc_headers \
kernel_headers \
cc_core \
libc_main \
cc_for_build \
cc_for_host \
libc_post_cc \
companion_libs_for_target \
binutils_for_target \
debug \
test_suite \
finish \
# Keep an empty line above this comment, so the last
# back-slash terminated line works as expected.
# Make the list available to sub-processes (scripts/crosstool-NG.sh needs it)
export CT_STEPS
# Print the steps list
PHONY += list-steps
list-steps:
@echo 'Available build steps, in order:'
@for step in $(CT_STEPS); do \
echo " - $${step}"; \
done
@echo 'Use "<step>" as action to execute only that step.'
@echo 'Use "+<step>" as action to execute up to that step.'
@echo 'Use "<step>+" as action to execute from that step onward.'
# ----------------------------------------------------------
# This part deals with executing steps
$(CT_STEPS):
$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$@ STOP=$@ build
$(patsubst %,+%,$(CT_STEPS)):
$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) STOP=$(patsubst +%,%,$@) build
$(patsubst %,%+,$(CT_STEPS)):
$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$(patsubst %+,%,$@) build
PHONY += version
version:
@echo 'This is crosstool-NG version $(CT_VERSION)'
@echo
@echo 'Copyright (C) 2008 Yann E. MORIN <yann.morin.1998@free.fr>'
@echo 'This is free software; see the source for copying conditions.'
@echo 'There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A'
@echo 'PARTICULAR PURPOSE.'
@echo
PHONY += clean
clean::
@$(CT_ECHO) " CLEAN log"
$(SILENT)rm -f build.log
@$(CT_ECHO) " CLEAN build dir"
$(SILENT)[ ! -d targets ] || chmod -R u+w targets
$(SILENT)[ ! -d .build ] || chmod -R u+w .build
$(SILENT)rm -rf targets .build .build-all
PHONY += distclean
distclean:: clean
@$(CT_ECHO) " CLEAN .config"
$(SILENT)rm -f .config .config.* ..config*
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