From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Masahiro Yamada <masahiroy@kernel.org>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Nicolas Schier <nicolas.schier@linux.dev>,
llvm@lists.linux.dev
Subject: [PATCH] kbuild: replace deprecated T option with --thin for $(AR)
Date: Sun, 25 May 2025 20:28:31 +0900 [thread overview]
Message-ID: <20250525112833.3808220-1-masahiroy@kernel.org> (raw)
According to 'man ar':
T Deprecated alias for --thin. T is not recommended because in
many ar implementations T has a different meaning, as specified
by X/Open System Interface.
'man llvm-ar' also states:
T Alias for --thin. In many ar implementations T has a different
meaning, as specified by X/Open System interface.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
Makefile | 6 +++---
scripts/Makefile.build | 2 +-
scripts/Makefile.lib | 2 +-
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/Makefile b/Makefile
index efbc0966b82a..682a8002b7a1 100644
--- a/Makefile
+++ b/Makefile
@@ -1201,12 +1201,12 @@ ifdef CONFIG_TRIM_UNUSED_KSYMS
KBUILD_MODULES := 1
endif
-# '$(AR) mPi' needs 'T' to workaround the bug of llvm-ar <= 14
+# '$(AR) mPi' needs --thin to workaround the bug of llvm-ar <= 14
quiet_cmd_ar_vmlinux.a = AR $@
cmd_ar_vmlinux.a = \
rm -f $@; \
- $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
- $(AR) mPiT $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt)
+ $(AR) cDPrS --thin $@ $(KBUILD_VMLINUX_OBJS); \
+ $(AR) mPi --thin $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt)
targets += vmlinux.a
vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt FORCE
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 8d8252229895..284931f2a9a2 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -456,7 +456,7 @@ $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
quiet_cmd_ar_builtin = AR $@
cmd_ar_builtin = rm -f $@; \
$(if $(real-prereqs), printf "$(obj)/%s " $(patsubst $(obj)/%,%,$(real-prereqs)) | xargs) \
- $(AR) cDPrST $@
+ $(AR) cDPrS --thin $@
$(obj)/built-in.a: $(real-obj-y) FORCE
$(call if_changed,ar_builtin)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index d858a3223bcd..e37e2db5f528 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -280,7 +280,7 @@ quiet_cmd_ld = LD $@
# ---------------------------------------------------------------------------
quiet_cmd_ar = AR $@
- cmd_ar = rm -f $@; $(AR) cDPrsT $@ $(real-prereqs)
+ cmd_ar = rm -f $@; $(AR) cDPrs --thin $@ $(real-prereqs)
# Objcopy
# ---------------------------------------------------------------------------
--
2.43.0
next reply other threads:[~2025-05-25 11:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-25 11:28 Masahiro Yamada [this message]
2025-05-27 22:16 ` [PATCH] kbuild: replace deprecated T option with --thin for $(AR) Nathan Chancellor
2025-06-05 20:40 ` Masahiro Yamada
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250525112833.3808220-1-masahiroy@kernel.org \
--to=masahiroy@kernel.org \
--cc=justinstitt@google.com \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=morbo@google.com \
--cc=nathan@kernel.org \
--cc=nick.desaulniers+lkml@gmail.com \
--cc=nicolas.schier@linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).