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-rw-r--r--tools/Makefile20
1 files changed, 15 insertions, 5 deletions
diff --git a/tools/Makefile b/tools/Makefile
index 9a617adc6675..b35102721cbb 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -1,3 +1,8 @@
+# Some of the tools (perf) use same make variables
+# as in kernel build.
+export srctree=
+export objtree=
+
include scripts/Makefile.include
help:
@@ -47,11 +52,16 @@ cgroup firewire hv guest usb virtio vm net: FORCE
liblockdep: FORCE
$(call descend,lib/lockdep)
-libapikfs: FORCE
+libapi: FORCE
$(call descend,lib/api)
-perf: libapikfs FORCE
- $(call descend,$@)
+# 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
$(call descend,testing/$@)
@@ -97,10 +107,10 @@ cgroup_clean hv_clean firewire_clean lguest_clean usb_clean virtio_clean vm_clea
liblockdep_clean:
$(call descend,lib/lockdep,clean)
-libapikfs_clean:
+libapi_clean:
$(call descend,lib/api,clean)
-perf_clean: libapikfs_clean
+perf_clean:
$(call descend,$(@:_clean=),clean)
selftests_clean: