linux-kernel - [PATCH 4.9 34/51] Revert "x86/vdso: Drop implicit common-page-size linker flag"

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Date:   Wed, 15 May 2019 12:56:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 34/51] Revert "x86/vdso: Drop implicit common-page-size linker flag"

This reverts commit 408d67a0fecf4cfe7869f518211ae278ee44376e.

The commit message in the 4.9 stable tree did not have a reference to
the upstream commit id.

Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/x86/entry/vdso/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 0d3ebdfa07396..cec8cb28eabae 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -48,7 +48,7 @@ targets += $(vdso_img_sodbg)
 export CPPFLAGS_vdso.lds += -P -C
 
 VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \
-			-z max-page-size=4096
+			-z max-page-size=4096 -z common-page-size=4096
 
 $(obj)/vdso64.so.dbg: $(src)/vdso.lds $(vobjs) FORCE
 	$(call if_changed,vdso)
@@ -95,7 +95,7 @@ CFLAGS_REMOVE_vvar.o = -pg
 
 CPPFLAGS_vdsox32.lds = $(CPPFLAGS_vdso.lds)
 VDSO_LDFLAGS_vdsox32.lds = -m elf32_x86_64 -soname linux-vdso.so.1 \
-			   -z max-page-size=4096
+			   -z max-page-size=4096 -z common-page-size=4096
 
 # 64-bit objects to re-brand as x32
 vobjs64-for-x32 := $(filter-out $(vobjs-nox32),$(vobjs-y))
-- 
2.20.1