Commit ebd191b3 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: add cmd_and_savecmd macro 



Separate out the command execution part of if_changed, as we did
for if_changed_dep.

This allows us to reuse it in if_changed_rule.

  define rule_foo
          $(call cmd_and_savecmd,foo)
          $(call cmd,bar)
  endef

Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Tested-by: default avatarNathan Chancellor <nathan@kernel.org>
Reviewed-by: default avatarNicolas Schier <n.schier@avm.de>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
parent c6031b1d

scripts/Kbuild.include

+4 −2
Original line number Diff line number Diff line
@@ -142,9 +142,11 @@ check-FORCE = $(if $(filter FORCE, $^),,$(warning FORCE prerequisite is missing) 
if-changed-cond = $(newer-prereqs)$(cmd-check)$(check-FORCE)



# Execute command if command has changed or prerequisite(s) are updated.

if_changed = $(if $(if-changed-cond),                                        \

if_changed = $(if $(if-changed-cond),$(cmd_and_savecmd),@:)



cmd_and_savecmd =                                                            \

	$(cmd);                                                              \

	printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)

	printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd



# Execute the command and also postprocess generated .d dependencies file.

if_changed_dep = $(if $(if-changed-cond),$(cmd_and_fixdep),@:)