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#
  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 := $(shell (getconf _NPROCESSORS_ONLN || egrep -c '^processor|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null)
 28  ifeq ($(JOBS),0)
 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	$(make)
 70
 71ifdef MAKECMDGOALS
 72has_clean := 0
 73ifneq ($(filter clean,$(MAKECMDGOALS)),)
 74  has_clean := 1
 75endif # clean
 76
 77ifeq ($(has_clean),1)
 78  rest := $(filter-out clean,$(MAKECMDGOALS))
 79  ifneq ($(rest),)
 80$(rest): clean
 81  endif # rest
 82endif # has_clean
 83endif # MAKECMDGOALS
 84
 85#
 86# The clean target is not really parallel, don't print the jobs info:
 87#
 88clean:
 89	$(make)
 90
 91#
 92# The build-test target is not really parallel, don't print the jobs info,
 93# it also uses only the tests/make targets that don't pollute the source
 94# repository, i.e. that uses O= or builds the tarpkg outside the source
 95# repo directories.
 96#
 97# For a full test, use:
 98#
 99# make -C tools/perf -f tests/make
100#
101build-test:
102	@$(MAKE) SHUF=1 -f tests/make REUSE_FEATURES_DUMP=1 MK=Makefile SET_PARALLEL=1 --no-print-directory tarpkg out
103
104#
105# All other targets get passed through:
106#
107%: FORCE
108	$(print_msg)
109	$(make)
110
111.PHONY: tags TAGS FORCE Makefile