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authorMasahiro Yamada <masahiroy@kernel.org>2022-05-27 13:01:54 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2022-06-01 17:07:29 +0300
commitebd191b38c5ea177318543a08e544cf2f7df944d (patch)
tree30ff7589124833ebe70dbcbbb91a26176ca4afda /scripts/Kbuild.include
parentc6031b1dbbbfec03891bf1baefa2e0803d705601 (diff)
downloadlinux-ebd191b38c5ea177318543a08e544cf2f7df944d.tar.xz
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: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nicolas Schier <n.schier@avm.de> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include6
1 files changed, 4 insertions, 2 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 455a0a6ce12d..ece44b735061 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -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),@:)