Replace a pipeline of echo and sed with printf to decrease process forks.
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
Changes in v2:
- Avoid the pipeline if there is no object to put in the archive
scripts/Makefile.build | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index cac070aee791..784f46d41959 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -358,9 +358,8 @@ $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
quiet_cmd_ar_builtin = AR $@
cmd_ar_builtin = rm -f $@; \
- echo $(patsubst $(obj)/%,%,$(real-prereqs)) | \
- sed -E 's:([^ ]+):$(obj)/\1:g' | \
- xargs $(AR) cDPrST $@
+ $(if $(real-prereqs), printf "$(obj)/%s " $(patsubst $(obj)/%,%,$(real-prereqs)) | xargs) \
+ $(AR) cDPrST $@
$(obj)/built-in.a: $(real-obj-y) FORCE
$(call if_changed,ar_builtin)
--
2.32.0
