| Ingo Molnar | d24e473 | 2009-04-20 13:32:07 +0200 | [diff] [blame] | 1 | # |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 2 | # Do a parallel build with multiple jobs, based on the number of CPUs online |
| 3 | # in this system: 'make -j8' on a 8-CPU system, etc. | ||||
| Namhyung Kim | 67cbbd7 | 2012-02-23 16:08:14 +0900 | [diff] [blame] | 4 | # |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 5 | # (To override it, run 'make JOBS=1' and similar.) |
| Namhyung Kim | 67cbbd7 | 2012-02-23 16:08:14 +0900 | [diff] [blame] | 6 | # |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 7 | ifeq ($(JOBS),) |
| 8 | JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null) | ||||
| 9 | ifeq ($(JOBS),) | ||||
| 10 | JOBS := 1 | ||||
| Jiri Olsa | 8e1b3f6 | 2013-04-15 04:06:58 +0200 | [diff] [blame] | 11 | endif |
| Jiri Olsa | 2bcd355 | 2012-08-07 15:20:43 +0200 | [diff] [blame] | 12 | endif |
| Kirill A. Shutemov | f4e7ac0 | 2010-08-21 03:38:20 +0300 | [diff] [blame] | 13 | |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 14 | export JOBS |
| Peter Hurley | 79d824e | 2013-01-27 20:51:22 -0500 | [diff] [blame] | 15 | |
| Ingo Molnar | 73a725f | 2013-10-02 11:58:30 +0200 | [diff] [blame^] | 16 | define print_msg |
| 17 | @printf ' BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n' | ||||
| 18 | endef | ||||
| 19 | |||||
| 20 | define make | ||||
| 21 | @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@ | ||||
| 22 | endef | ||||
| Ingo Molnar | d24e473 | 2009-04-20 13:32:07 +0200 | [diff] [blame] | 23 | |
| Ingo Molnar | de0f03f | 2013-10-02 09:43:23 +0200 | [diff] [blame] | 24 | # |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 25 | # Needed if no target specified: |
| Ingo Molnar | de0f03f | 2013-10-02 09:43:23 +0200 | [diff] [blame] | 26 | # |
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 27 | all: |
| Ingo Molnar | 73a725f | 2013-10-02 11:58:30 +0200 | [diff] [blame^] | 28 | $(print_msg) |
| 29 | $(make) | ||||
| Ingo Molnar | de0f03f | 2013-10-02 09:43:23 +0200 | [diff] [blame] | 30 | |
| Ingo Molnar | 73a725f | 2013-10-02 11:58:30 +0200 | [diff] [blame^] | 31 | # |
| 32 | # The clean target is not really parallel, don't print the jobs info: | ||||
| 33 | # | ||||
| 34 | clean: | ||||
| 35 | $(make) | ||||
| 36 | |||||
| 37 | # | ||||
| 38 | # All other targets get passed through: | ||||
| 39 | # | ||||
| Ingo Molnar | bd69cc2 | 2013-10-02 11:49:08 +0200 | [diff] [blame] | 40 | %: |
| Ingo Molnar | 73a725f | 2013-10-02 11:58:30 +0200 | [diff] [blame^] | 41 | $(print_msg) |
| 42 | $(make) | ||||