From: Masahiro Yamada <masahiroy@kernel.org>
To: x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>
Cc: "H . Peter Anvin" <hpa@zytor.com>,
clang-built-linux@googlegroups.com,
Masahiro Yamada <masahiroy@kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] x86/vdso: remove -nostdlib compiler flag
Date: Mon, 8 Nov 2021 01:26:40 +0900 [thread overview]
Message-ID: <20211107162641.324688-1-masahiroy@kernel.org> (raw)
The -nostdlib option requests the compiler to not use the standard
system startup files or libraries when linking. It is effective only
when $(CC) is used as a linker driver.
Since
379d98ddf413 ("x86: vdso: Use $LD instead of $CC to link")
$(LD) is directly used, hence -nostdlib is unneeded.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
arch/x86/entry/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index a2dddcc189f6..693f8b9031fb 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -172,7 +172,7 @@ $(obj)/vdso32.so.dbg: $(obj)/vdso32/vdso32.lds $(vobjs32) FORCE
# The DSO images are built using a special linker script.
#
quiet_cmd_vdso = VDSO $@
- cmd_vdso = $(LD) -nostdlib -o $@ \
+ cmd_vdso = $(LD) -o $@ \
$(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
-T $(filter %.lds,$^) $(filter %.o,$^) && \
sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
--
2.30.2
next reply other threads:[~2021-11-07 16:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-07 16:26 Masahiro Yamada [this message]
2021-11-07 16:26 ` [PATCH 2/2] x86/purgatory: " Masahiro Yamada
2021-11-08 23:52 ` Nick Desaulniers
2021-11-09 0:05 ` Fangrui Song
2021-11-10 19:54 ` Nick Desaulniers
2021-12-30 18:21 ` [tip: x86/vdso] x86/purgatory: Remove " tip-bot2 for Masahiro Yamada
2021-11-10 20:01 ` [PATCH 1/2] x86/vdso: remove " Nick Desaulniers
2021-12-30 18:21 ` [tip: x86/vdso] x86/vdso: Remove " tip-bot2 for Masahiro Yamada
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