b601d4b0e4
This should be particularly helpful for Mac users, because the default limits of Mac are too low. Change-Id: I03f0f76a0707b4ce5ef9cddf5df6e3857a215996
68 lines
2.5 KiB
Makefile
68 lines
2.5 KiB
Makefile
#
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# Copyright (C) 2015 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Notice: this works only with Google's Goma build infrastructure.
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ifneq ($(USE_GOMA),)
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# Check if USE_NINJA is defined because GNU make won't work well
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# with goma. Note this file is evaluated twice, once with
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# USE_NINJA=true by GNU make and once with USE_NINJA=false by kati
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# which is invoked by GNU make. So, we cannot test the value of
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# USE_NINJA.
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ifndef USE_NINJA
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$(error USE_GOMA=true works only with USE_NINJA=true)
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endif
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# Goma requires a lot of processes and file descriptors.
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ifeq ($(shell echo $$(($$(ulimit -u) < 2500 || $$(ulimit -n) < 16000))),1)
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$(warning Max user processes and/or open files are insufficient)
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ifeq ($(shell uname),Darwin)
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$(error See go/ma/how-to-use-goma/how-to-use-goma-for-android to relax the limit)
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else
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$(error Adjust the limit by ulimit -u and ulimit -n)
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endif
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endif
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ifdef GOMA_DIR
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goma_dir := $(GOMA_DIR)
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else
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goma_dir := $(HOME)/goma
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endif
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goma_ctl := $(goma_dir)/goma_ctl.py
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goma_cc := $(goma_dir)/gomacc
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$(if $(wildcard $(goma_ctl)),, \
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$(warning You should have goma in $$GOMA_DIR or $(HOME)/goma) \
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$(error See go/ma/how-to-use-goma/how-to-use-goma-for-android for detail))
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# Append gomacc to existing *_WRAPPER variables so it's possible to
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# use both ccache and gomacc.
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CC_WRAPPER := $(strip $(CC_WRAPPER) $(goma_cc))
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CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(goma_cc))
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# Ninja file generated by kati uses this for remote jobs (i.e.,
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# commands which contain gomacc). Note the parallelism of all other
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# jobs will be limited the number of cores.
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KATI_REMOTE_NUM_JOBS_FLAG := --remote_num_jobs=500
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# gomacc can start goma client's daemon process automatically, but
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# it is safer and faster to start up it beforehand. We run this as a
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# background process so this won't slow down the build.
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$(shell $(goma_ctl) ensure_start &> /dev/null &)
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goma_cc :=
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goma_ctl :=
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goma_dir :=
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endif
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