| 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 | # |
| 18 | unexport 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 | # |
| 26 | ifeq ($(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 |
| 31 | endif |
| 32 | |
| 33 | # |
| 34 | # Only pass canonical directory names as the output directory: |
| 35 | # |
| 36 | ifneq ($(O),) |
| 37 | FULL_O := $(shell readlink -f $(O) || echo $(O)) |
| 38 | endif |
| 39 | |
| 40 | # |
| 41 | # Only accept the 'DEBUG' variable from the command line: |
| 42 | # |
| 43 | ifeq ("$(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 | |
| 53 | define print_msg |
| 54 | @printf ' BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n' |
| 55 | endef |
| 56 | |
| 57 | define make |
| 58 | @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@ |
| 59 | endef |
| 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 | # |
| 67 | all tags TAGS: |
| 68 | $(print_msg) |
| 69 | $(make) |
| 70 | |
| 71 | ifdef MAKECMDGOALS |
| 72 | has_clean := 0 |
| 73 | ifneq ($(filter clean,$(MAKECMDGOALS)),) |
| 74 | has_clean := 1 |
| 75 | endif # clean |
| 76 | |
| 77 | ifeq ($(has_clean),1) |
| 78 | rest := $(filter-out clean,$(MAKECMDGOALS)) |
| 79 | ifneq ($(rest),) |
| 80 | $(rest): clean |
| 81 | endif # rest |
| 82 | endif # has_clean |
| 83 | endif # MAKECMDGOALS |
| 84 | |
| 85 | # |
| 86 | # The clean target is not really parallel, don't print the jobs info: |
| 87 | # |
| 88 | clean: |
| 89 | $(make) |
| 90 | |
| 91 | # |
| 92 | # The build-test target is not really parallel, don't print the jobs info, |
| 93 | # it also uses only the tests/make targets that don't pollute the source |
| 94 | # repository, i.e. that uses O= or builds the tarpkg outside the source |
| 95 | # repo directories. |
| 96 | # |
| 97 | # For a full test, use: |
| 98 | # |
| 99 | # make -C tools/perf -f tests/make |
| 100 | # |
| 101 | build-test: |
| 102 | @$(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 |