1#
 2# This is a simple wrapper Makefile that calls the main Makefile.perf
 3# with a -j option to do parallel builds
 4#
 5# If you want to invoke the perf build in some non-standard way then
 6# you can use the 'make -f Makefile.perf' method to invoke it.
 7#
 8
 9#
10# Clear out the built-in rules GNU make defines by default (such as .o targets),
11# so that we pass through all targets to Makefile.perf:
12#
13.SUFFIXES:
14
15#
16# We don't want to pass along options like -j:
17#
18unexport MAKEFLAGS
19
20#
21# Do a parallel build with multiple jobs, based on the number of CPUs online
22# in this system: 'make -j8' on a 8-CPU system, etc.
23#
24# (To override it, run 'make JOBS=1' and similar.)
25#
26ifeq ($(JOBS),)
27  JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
28  ifeq ($(JOBS),)
29    JOBS := 1
30  endif
31endif
32
33#
34# Only pass canonical directory names as the output directory:
35#
36ifneq ($(O),)
37  FULL_O := $(shell readlink -f $(O) || echo $(O))
38endif
39
40#
41# Only accept the 'DEBUG' variable from the command line:
42#
43ifeq ("$(origin DEBUG)", "command line")
44  ifeq ($(DEBUG),)
45    override DEBUG = 0
46  else
47    SET_DEBUG = "DEBUG=$(DEBUG)"
48  endif
49else
50  override DEBUG = 0
51endif
52
53define print_msg
54  @printf '  BUILD:   Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
55endef
56
57define make
58  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@
59endef
60
61#
62# Needed if no target specified:
63# (Except for tags and TAGS targets. The reason is that the
64# Makefile does not treat tags/TAGS as targets but as files
65# and thus won't rebuilt them once they are in place.)
66#
67all tags TAGS:
68	$(print_msg)
69	$(make)
70
 
 
 
 
 
 
 
 
 
 
 
 
 
 
71#
72# The clean target is not really parallel, don't print the jobs info:
73#
74clean:
75	$(make)
76
77#
78# The build-test target is not really parallel, don't print the jobs info:
 
 
 
 
 
 
 
79#
80build-test:
81	@$(MAKE) -f tests/make --no-print-directory
 
 
 
82
83#
84# All other targets get passed through:
85#
86%:
87	$(print_msg)
88	$(make)
89
90.PHONY: tags TAGS

  1# SPDX-License-Identifier: GPL-2.0
  2#
  3# This is a simple wrapper Makefile that calls the main Makefile.perf
  4# with a -j option to do parallel builds
  5#
  6# If you want to invoke the perf build in some non-standard way then
  7# you can use the 'make -f Makefile.perf' method to invoke it.
  8#
  9
 10#
 11# Clear out the built-in rules GNU make defines by default (such as .o targets),
 12# so that we pass through all targets to Makefile.perf:
 13#
 14.SUFFIXES:
 15
 16#
 17# We don't want to pass along options like -j:
 18#
 19unexport MAKEFLAGS
 20
 21#
 22# Do a parallel build with multiple jobs, based on the number of CPUs online
 23# in this system: 'make -j8' on a 8-CPU system, etc.
 24#
 25# (To override it, run 'make JOBS=1' and similar.)
 26#
 27ifeq ($(JOBS),)
 28  JOBS := $(shell (getconf _NPROCESSORS_ONLN || grep -E -c '^processor|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null)
 29  ifeq ($(JOBS),0)
 30    JOBS := 1
 31  endif
 32endif
 33
 34#
 35# Only pass canonical directory names as the output directory:
 36#
 37ifneq ($(O),)
 38  FULL_O := $(shell cd $(PWD); readlink -f $(O) || echo $(O))
 39endif
 40
 41#
 42# Only accept the 'DEBUG' variable from the command line:
 43#
 44ifeq ("$(origin DEBUG)", "command line")
 45  ifeq ($(DEBUG),)
 46    override DEBUG = 0
 47  else
 48    SET_DEBUG = "DEBUG=$(DEBUG)"
 49  endif
 50else
 51  override DEBUG = 0
 52endif
 53
 54define print_msg
 55  @printf '  BUILD:   Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
 56endef
 57
 58define make
 59  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@
 60endef
 61
 62#
 63# Needed if no target specified:
 64# (Except for tags and TAGS targets. The reason is that the
 65# Makefile does not treat tags/TAGS as targets but as files
 66# and thus won't rebuilt them once they are in place.)
 67#
 68all tags TAGS:
 69	$(print_msg)
 70	$(make)
 71
 72ifdef MAKECMDGOALS
 73has_clean := 0
 74ifneq ($(filter clean,$(MAKECMDGOALS)),)
 75  has_clean := 1
 76endif # clean
 77
 78ifeq ($(has_clean),1)
 79  rest := $(filter-out clean,$(MAKECMDGOALS))
 80  ifneq ($(rest),)
 81$(rest): clean
 82  endif # rest
 83endif # has_clean
 84endif # MAKECMDGOALS
 85
 86#
 87# Explicitly disable parallelism for the clean target.
 88#
 89clean:
 90	$(make) -j1
 91
 92#
 93# The build-test target is not really parallel, don't print the jobs info,
 94# it also uses only the tests/make targets that don't pollute the source
 95# repository, i.e. that uses O= or builds the tarpkg outside the source
 96# repo directories.
 97#
 98# For a full test, use:
 99#
100# make -C tools/perf -f tests/make
101#
102build-test:
103	@$(MAKE) SHUF=1 -f tests/make REUSE_FEATURES_DUMP=1 MK=Makefile SET_PARALLEL=1 --no-print-directory tarpkg make_static make_with_gtk2 out
104
105build-test-tarball:
106	@$(MAKE) -f tests/make REUSE_FEATURES_DUMP=1 MK=Makefile SET_PARALLEL=1 --no-print-directory out
107
108#
109# All other targets get passed through:
110#
111%: FORCE
112	$(print_msg)
113	$(make)
114
115.PHONY: tags TAGS FORCE Makefile