goma.mk revision 09295a82f8db8f3e699b3089f7d93565a82b72ca 
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 ($(USE_GOMA),)
19  # Check if USE_NINJA is not false because GNU make won't work well
20  # with goma. Note this file is evaluated twice, once by GNU make and
21  # once by kati with USE_NINJA=false. We do this check in the former
22  # pass.
23  ifndef KATI
24    ifeq ($(USE_NINJA),false)
25      $(error USE_GOMA=true is not compatible with USE_NINJA=false)
26    endif
27  endif
28
29  # Goma requires a lot of processes and file descriptors.
30  ifeq ($(shell echo $$(($$(ulimit -u) < 2500 || $$(ulimit -n) < 16000))),1)
31    $(warning Max user processes and/or open files are insufficient)
32    ifeq ($(shell uname),Darwin)
33      $(error See go/ma/how-to-use-goma/how-to-use-goma-for-android to relax the limit)
34    else
35      $(error Adjust the limit by ulimit -u and ulimit -n)
36    endif
37  endif
38
39  ifdef GOMA_DIR
40    goma_dir := $(GOMA_DIR)
41  else
42    goma_dir := $(HOME)/goma
43  endif
44  goma_ctl := $(goma_dir)/goma_ctl.py
45  GOMA_CC := $(goma_dir)/gomacc
46
47  $(if $(wildcard $(goma_ctl)),, \
48   $(warning You should have goma in $$GOMA_DIR or $(HOME)/goma) \
49   $(error See go/ma/how-to-use-goma/how-to-use-goma-for-android for detail))
50
51  # Append gomacc to existing *_WRAPPER variables so it's possible to
52  # use both ccache and gomacc.
53  CC_WRAPPER := $(strip $(CC_WRAPPER) $(GOMA_CC))
54  CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(GOMA_CC))
55
56  # gomacc can start goma client's daemon process automatically, but
57  # it is safer and faster to start up it beforehand. We run this as a
58  # background process so this won't slow down the build.
59  $(shell $(goma_ctl) ensure_start &> /dev/null &)
60
61  goma_ctl :=
62  goma_dir :=
63endif
64