diff options
Diffstat (limited to 'scripts/Kbuild.include')
| -rw-r--r-- | scripts/Kbuild.include | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 7778cc97a4e0..5341736f2e30 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -277,3 +277,13 @@ ifneq ($(and $(filter notintermediate, $(.FEATURES)),$(filter-out 4.4,$(MAKE_VER else .SECONDARY: endif + + # expand_parents(a/b/c) = a/b/c a/b a +expand_parents2 = $(if $(subst .,,$(1)),$(call expand_parents,$(1)),) +expand_parents = $(1) $(call expand_parents2,$(patsubst %/,%,$(dir $(1)))) + +# flatten_dirs(a/b/c) = a_b_c a_b a +flatten_dirs = $(subst /,_,$(call expand_parents,$(1))) + +# eval_vars(X_,a/b/c) = $(X_a_b_c) $(X_a_b) $(X_a) +eval_vars = $(foreach var,$(call flatten_dirs,$(2)),$($(1)$(var))) |