From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Nick Desaulniers <ndesaulniers@google.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH] kbuild: remove sed command from cmd_ar_builtin
Date: Tue, 14 Jun 2022 13:11:00 +0900 [thread overview]
Message-ID: <20220614041100.1860067-1-masahiroy@kernel.org> (raw)
Replace a pipeline of echo and sed with printf to decrease process forks.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
scripts/Makefile.build | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index cac070aee791..d69849133dad 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
reply other threads:[~2022-06-14 4:12 UTC|newest]
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