goma.mk revision ee482fd521a0b3c7c33539c7b1a8d552c18832c3 
1#
2# Copyright (C) 2015 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17# Notice: this works only with Google's Goma build infrastructure.
18ifneq ($(USE_GOMA),)
19  # Check if USE_NINJA is defined because GNU make won't work well
20  # with goma. Note this file is evaluated twice, once with
21  # USE_NINJA=true by GNU make and once with USE_NINJA=false by kati
22  # which is invoked by GNU make. So, we cannot test the value of
23  # USE_NINJA.
24  ifndef USE_NINJA
25    $(error USE_GOMA=true works only with USE_NINJA=true)
26  endif
27
28  ifdef GOMA_DIR
29    goma_dir := $(GOMA_DIR)
30  else
31    goma_dir := $(HOME)/goma
32  endif
33  goma_ctl := $(goma_dir)/goma_ctl.py
34  goma_cc := $(goma_dir)/gomacc
35
36  $(if $(wildcard $(goma_ctl)),, \
37   $(warning You should have goma in $$GOMA_DIR or $(HOME)/goma) \
38   $(error See go/ma/how-to-use-goma/how-to-use-goma-for-android for detail))
39
40  # Append gomacc to existing *_WRAPPER variables so it's possible to
41  # use both ccache and gomacc.
42  CC_WRAPPER := $(strip $(CC_WRAPPER) $(goma_cc))
43  CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(goma_cc))
44
45  # Ninja file generated by kati uses this for remote jobs (i.e.,
46  # commands which contain gomacc). Note the parallelism of all other
47  # jobs will be limited the number of cores.
48  KATI_REMOTE_NUM_JOBS_FLAG := --remote_num_jobs=500
49
50  # gomacc can start goma client's daemon process automatically, but
51  # it is safer and faster to start up it beforehand. We run this as a
52  # background process so this won't slow down the build.
53  $(shell $(goma_ctl) ensure_start &> /dev/null &)
54
55  goma_cc :=
56  goma_ctl :=
57  goma_dir :=
58endif
59