[linux-2.6-block.git] / tools / perf / Makefile

#
# This is a simple wrapper Makefile that calls the main Makefile.perf
# with a -j option to do parallel builds
#
# If you want to invoke the perf build in some non-standard way then
# you can use the 'make -f Makefile.perf' method to invoke it.
#

#
# Clear out the built-in rules GNU make defines by default (such as .o targets),
# so that we pass through all targets to Makefile.perf:
#
.SUFFIXES:

#
# We don't want to pass along options like -j:
#
unexport MAKEFLAGS

#
# Do a parallel build with multiple jobs, based on the number of CPUs online
# in this system: 'make -j8' on a 8-CPU system, etc.
#
# (To override it, run 'make JOBS=1' and similar.)
#
ifeq ($(JOBS),)
  JOBS := $(shell (getconf _NPROCESSORS_ONLN || egrep -c '^processor|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null)
  ifeq ($(JOBS),0)
    JOBS := 1
  endif
endif

#
# Only pass canonical directory names as the output directory:
#
ifneq ($(O),)
  FULL_O := $(shell readlink -f $(O) || echo $(O))
endif

#
# Only accept the 'DEBUG' variable from the command line:
#
ifeq ("$(origin DEBUG)", "command line")
  ifeq ($(DEBUG),)
    override DEBUG = 0
  else
    SET_DEBUG = "DEBUG=$(DEBUG)"
  endif
else
  override DEBUG = 0
endif

define print_msg
  @printf '  BUILD:   Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
endef

define make
  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@
endef

#
# Needed if no target specified:
# (Except for tags and TAGS targets. The reason is that the
# Makefile does not treat tags/TAGS as targets but as files
# and thus won't rebuilt them once they are in place.)
#
all tags TAGS:
	$(print_msg)
	$(make)

#
# The clean target is not really parallel, don't print the jobs info:
#
clean:
	$(make)

#
# The build-test target is not really parallel, don't print the jobs info:
#
build-test:
	@$(MAKE) SHUF=1 -f tests/make --no-print-directory

#
# All other targets get passed through:
#
%: FORCE
	$(print_msg)
	$(make)

.PHONY: tags TAGS FORCE Makefile
Commit	Line	Data
684f434c IM	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	#
b016a0dd IM	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
684f434c IM	15	#
	16	# We don't want to pass along options like -j:
	17	#
	18	unexport MAKEFLAGS
	19
4e34d958	20	#
bd69cc28 IM	21	# Do a parallel build with multiple jobs, based on the number of CPUs online
bd69cc28 IM	22	# in this system: 'make -j8' on a 8-CPU system, etc.
79d824e3	23	#
bd69cc28	24	# (To override it, run 'make JOBS=1' and similar.)
4e22db46	25	#
bd69cc28	26	ifeq ($(JOBS),)
762abdc0	27	JOBS := $(shell (getconf _NPROCESSORS_ONLN \|\| egrep -c '^processor\|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null)
c65568c5	28	ifeq ($(JOBS),0)
bd69cc28	29	JOBS := 1
8e1b3f68	30	endif
2bcd355b	31	endif
f4e7ac0a	32
b102420b IM	33	#
	34	# Only pass canonical directory names as the output directory:
	35	#
	36	ifneq ($(O),)
3fb66335	37	FULL_O := $(shell readlink -f $(O) \|\| echo $(O))
b102420b IM	38	endif
b102420b IM	39
fcf92585 IM	40	#
	41	# Only accept the 'DEBUG' variable from the command line:
	42	#
	43	ifeq ("$(origin DEBUG)", "command line")
	44	ifeq ($(DEBUG),)
	45	override DEBUG = 0
	46	else
	47	SET_DEBUG = "DEBUG=$(DEBUG)"
	48	endif
	49	else
	50	override DEBUG = 0
	51	endif
	52
73a725f0	53	define print_msg
65fb0992	54	@printf ' BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
73a725f0 IM	55	endef
	56
	57	define make
fcf92585	58	@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@
73a725f0	59	endef
d24e473e	60
de0f03fb	61	#
bd69cc28	62	# Needed if no target specified:
26286141 JO	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.)
de0f03fb	66	#
26286141	67	all tags TAGS:
73a725f0 IM	68	$(print_msg)
	69	$(make)
	70
	71	#
	72	# The clean target is not really parallel, don't print the jobs info:
	73	#
	74	clean:
	75	$(make)
c72e3f04	76
a7077234 NK	77	#
	78	# The build-test target is not really parallel, don't print the jobs info:
	79	#
	80	build-test:
98916392	81	@$(MAKE) SHUF=1 -f tests/make --no-print-directory
a7077234	82
73a725f0 IM	83	#
	84	# All other targets get passed through:
	85	#
8e557351	86	%: FORCE
73a725f0 IM	87	$(print_msg)
73a725f0 IM	88	$(make)
26286141	89
8e557351	90	.PHONY: tags TAGS FORCE Makefile