# Some of the tools (perf) use same make variables
  # as in kernel build.
  export srctree=
  export objtree=

  include scripts/Makefile.include

  help:
  	@echo 'Possible targets:'
  	@echo ''

  	@echo '  acpi                   - ACPI tools'
  	@echo '  cgroup                 - cgroup tools'
  	@echo '  cpupower               - a tool for all things x86 CPU power'
  	@echo '  firewire               - the userspace part of nosy, an IEEE-1394 traffic sniffer'
  	@echo '  freefall               - laptop accelerometer program for disk protection'

  	@echo '  gpio                   - GPIO tools'

  	@echo '  hv                     - tools used when in Hyper-V clients'
  	@echo '  iio                    - IIO tools'

  	@echo '  kvm_stat               - top-like utility for displaying kvm statistics'

  	@echo '  lguest                 - a minimal 32-bit x86 hypervisor'
  	@echo '  net                    - misc networking tools'
  	@echo '  perf                   - Linux performance measurement and analysis tool'
  	@echo '  selftests              - various kernel selftests'

  	@echo '  spi                    - spi tools'

  	@echo '  objtool                - an ELF object analysis tool'

  	@echo '  tmon                   - thermal monitoring and tuning tool'
  	@echo '  turbostat              - Intel CPU idle stats and freq reporting tool'
  	@echo '  usb                    - USB testing tools'
  	@echo '  virtio                 - vhost test module'
  	@echo '  vm                     - misc vm tools'

  	@echo '  x86_energy_perf_policy - Intel energy policy tool'
  	@echo ''

  	@echo 'You can do:'

  	@echo ' $$ make -C tools/ <tool>_install'

  	@echo ''
  	@echo '  from the kernel command line to build and install one of'
  	@echo '  the tools above'
  	@echo ''

  	@echo '  $$ make tools/all'
  	@echo ''
  	@echo '  builds all tools.'
  	@echo ''

  	@echo '  $$ make tools/install'
  	@echo ''
  	@echo '  installs all tools.'
  	@echo ''

  	@echo 'Cleaning targets:'
  	@echo ''
  	@echo '  all of the above with the "_clean" string appended cleans'
  	@echo '    the respective build directory.'
  	@echo '  clean: a summary clean target to clean _all_ folders'

  acpi: FORCE
  	$(call descend,power/$@)

  cpupower: FORCE

  	$(call descend,power/$@)

  cgroup firewire hv guest spi usb virtio vm net iio gpio objtool: FORCE

  	$(call descend,$@)

  liblockdep: FORCE
  	$(call descend,lib/lockdep)

  libapi: FORCE

  	$(call descend,lib/api)

  # The perf build does not follow the descend function setup,
  # invoking it via it's own make rule.
  PERF_O   = $(if $(O),$(O)/tools/perf,)

  perf: FORCE

  	$(Q)mkdir -p $(PERF_O) .
  	$(Q)$(MAKE) --no-print-directory -C perf O=$(PERF_O) subdir=

  
  selftests: FORCE

  	$(call descend,testing/$@)

  
  turbostat x86_energy_perf_policy: FORCE

  	$(call descend,power/x86/$@)

  tmon: FORCE
  	$(call descend,thermal/$@)

  freefall: FORCE
  	$(call descend,laptop/$@)

  all: acpi cgroup cpupower gpio hv firewire lguest \

  		perf selftests turbostat usb \
  		virtio vm net x86_energy_perf_policy \

  		tmon freefall objtool

  acpi_install:
  	$(call descend,power/$(@:_install=),install)

  cpupower_install:

  	$(call descend,power/$(@:_install=),install)

  cgroup_install firewire_install gpio_install hv_install lguest_install perf_install usb_install virtio_install vm_install net_install objtool_install:

  	$(call descend,$(@:_install=),install)

  
  selftests_install:

  	$(call descend,testing/$(@:_install=),install)

  
  turbostat_install x86_energy_perf_policy_install:

  	$(call descend,power/x86/$(@:_install=),install)

  tmon_install:
  	$(call descend,thermal/$(@:_install=),install)

  freefall_install:
  	$(call descend,laptop/$(@:_install=),install)

  kvm_stat_install:
  	$(call descend,kvm/$(@:_install=),install)

  install: acpi_install cgroup_install cpupower_install gpio_install \
  		hv_install firewire_install lguest_install \

  		perf_install selftests_install turbostat_install usb_install \

  		virtio_install vm_install net_install x86_energy_perf_policy_install \

  		tmon_install freefall_install objtool_install kvm_stat_install

  acpi_clean:
  	$(call descend,power/acpi,clean)

  cpupower_clean:

  	$(call descend,power/cpupower,clean)

  cgroup_clean hv_clean firewire_clean lguest_clean spi_clean usb_clean virtio_clean vm_clean net_clean iio_clean gpio_clean objtool_clean:

  	$(call descend,$(@:_clean=),clean)

  liblockdep_clean:
  	$(call descend,lib/lockdep,clean)

  libapi_clean:

  	$(call descend,lib/api,clean)

  libbpf_clean:
  	$(call descend,lib/bpf,clean)
  
  libsubcmd_clean:
  	$(call descend,lib/subcmd,clean)

  perf_clean:

  	$(Q)mkdir -p $(PERF_O) .
  	$(Q)$(MAKE) --no-print-directory -C perf O=$(PERF_O) subdir= clean

  
  selftests_clean:

  	$(call descend,testing/$(@:_clean=),clean)

  
  turbostat_clean x86_energy_perf_policy_clean:

  	$(call descend,power/x86/$(@:_clean=),clean)

  tmon_clean:
  	$(call descend,thermal/tmon,clean)

  freefall_clean:
  	$(call descend,laptop/freefall,clean)

  build_clean:
  	$(call descend,build,clean)

  clean: acpi_clean cgroup_clean cpupower_clean hv_clean firewire_clean lguest_clean \

  		perf_clean selftests_clean turbostat_clean spi_clean usb_clean virtio_clean \

  		vm_clean net_clean iio_clean x86_energy_perf_policy_clean tmon_clean \

  		freefall_clean build_clean libbpf_clean libsubcmd_clean liblockdep_clean \

  		gpio_clean objtool_clean

  
  .PHONY: FORCE