numam-dpdk/mk/rte.extsubdir.mk
Jan Blunck 9a1774b80a mk: fix external builds with relative output dir
In case the output directory (O=) is undefined or a relative directory lets
turn it into an absolute path before passing it on. Otherwise the output
directory is created relative to the subdir, e.g. pktgen/app/build/... and
pktgen/lib/lua/src/build/...

Signed-off-by: Jan Blunck <jblunck@infradead.org>
2017-04-30 22:45:34 +02:00

68 lines
2.3 KiB
Makefile

# BSD LICENSE
#
# Copyright(c) 2014 6WIND S.A.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of 6WIND S.A. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
MAKEFLAGS += --no-print-directory
ALL_DEPDIRS := $(patsubst DEPDIRS-%,%,$(filter DEPDIRS-%,$(.VARIABLES)))
# output directory
O ?= $(CURDIR)
BASE_OUTPUT ?= $(abspath $(O))
CUR_SUBDIR ?= .
.PHONY: all
all: $(DIRS-y)
.PHONY: clean
clean: $(DIRS-y)
.PHONY: $(DIRS-y)
$(DIRS-y):
@echo "== $@"
$(Q)$(MAKE) -C $(@) \
M=$(CURDIR)/$(@)/Makefile \
O=$(BASE_OUTPUT)/$(CUR_SUBDIR)/$(@)/$(RTE_TARGET) \
BASE_OUTPUT=$(BASE_OUTPUT) \
CUR_SUBDIR=$(CUR_SUBDIR)/$(@) \
S=$(CURDIR)/$(@) \
DEPDIRS="$(DEPDIRS-$@)" \
$(filter-out $(DIRS-y),$(MAKECMDGOALS))
define depdirs_rule
$(DEPDIRS-$(1)):
$(1): | $(DEPDIRS-$(1))
$(if $(D),$(info $(1) depends on $(DEPDIRS-$(1))))
endef
$(foreach dir,$(ALL_DEPDIRS),\
$(eval $(call depdirs_rule,$(dir))))