linux-kernel - [tip: x86/vdso] x86/vdso: Remove -nostdlib compiler flag

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Date:   Thu, 30 Dec 2021 18:21:54 -0000
From:   "tip-bot2 for Masahiro Yamada" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Borislav Petkov <bp@...e.de>,
        Nick Desaulniers <ndesaulniers@...gle.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/vdso] x86/vdso: Remove -nostdlib compiler flag

The following commit has been merged into the x86/vdso branch of tip:

Commit-ID:     a41f5b78ac5ba65986b31ddc6325a0b8cc8b8864
Gitweb:        https://git.kernel.org/tip/a41f5b78ac5ba65986b31ddc6325a0b8cc8b8864
Author:        Masahiro Yamada <masahiroy@...nel.org>
AuthorDate:    Mon, 08 Nov 2021 01:26:40 +09:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Thu, 30 Dec 2021 14:08:20 +01:00

x86/vdso: Remove -nostdlib compiler flag

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@...nel.org>
Signed-off-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
Link: https://lore.kernel.org/r/20211107162641.324688-1-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 a2dddcc..693f8b9 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 '$(NM)' '$@'