blob: 7fc6c461d93aaa949f66898511e8183bbaba74c6 [file] [log] [blame]
#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Notice: this works only with Google's Goma build infrastructure.
ifneq ($(USE_GOMA),)
# Check if USE_NINJA is defined because GNU make won't work well
# with goma. Note this file is evaluated twice, once with
# USE_NINJA=true by GNU make and once with USE_NINJA=false by kati
# which is invoked by GNU make. So, we cannot test the value of
# USE_NINJA.
ifndef USE_NINJA
$(error USE_GOMA=true works only with USE_NINJA=true)
endif
# Goma requires a lot of processes and file descriptors.
ifeq ($(shell echo $$(($$(ulimit -u) < 2500 || $$(ulimit -n) < 16000))),1)
$(warning Max user processes and/or open files are insufficient)
ifeq ($(shell uname),Darwin)
$(error See go/ma/how-to-use-goma/how-to-use-goma-for-android to relax the limit)
else
$(error Adjust the limit by ulimit -u and ulimit -n)
endif
endif
ifdef GOMA_DIR
goma_dir := $(GOMA_DIR)
else
goma_dir := $(HOME)/goma
endif
goma_ctl := $(goma_dir)/goma_ctl.py
goma_cc := $(goma_dir)/gomacc
$(if $(wildcard $(goma_ctl)),, \
$(warning You should have goma in $$GOMA_DIR or $(HOME)/goma) \
$(error See go/ma/how-to-use-goma/how-to-use-goma-for-android for detail))
# Append gomacc to existing *_WRAPPER variables so it's possible to
# use both ccache and gomacc.
CC_WRAPPER := $(strip $(CC_WRAPPER) $(goma_cc))
CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(goma_cc))
# Ninja file generated by kati uses this for remote jobs (i.e.,
# commands which contain gomacc). Note the parallelism of all other
# jobs will be limited the number of cores.
KATI_REMOTE_NUM_JOBS_FLAG := --remote_num_jobs=500
# gomacc can start goma client's daemon process automatically, but
# it is safer and faster to start up it beforehand. We run this as a
# background process so this won't slow down the build.
$(shell $(goma_ctl) ensure_start &> /dev/null &)
goma_cc :=
goma_ctl :=
goma_dir :=
endif