tools: Add a "make all" rule

Signed-off-by: NKamal Mostafa <kamal@canonical.com>
Acked-by: NPavel Machek <pavel@ucw.cz>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Pali Rohar <pali.rohar@gmail.com>
Cc: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Link: http://lkml.kernel.org/r/1447280736-2161-2-git-send-email-kamal@canonical.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/Makefile

@@ -32,6 +32,10 @@ help:
 	@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.'
@@ -77,6 +81,11 @@ tmon: FORCE
 freefall: FORCE
 	$(call descend,laptop/$@)
 
+all: acpi cgroup cpupower hv firewire lguest \
+		perf selftests turbostat usb \
+		virtio vm net x86_energy_perf_policy \
+		tmon freefall
+
 acpi_install:
 	$(call descend,power/$(@:_install=),install)