From: Andy Lutomirski <luto@MIT.EDU>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
John Stultz <johnstul@us.ibm.com>, Borislav Petkov <bp@amd64.org>,
Andy Lutomirski <luto@MIT.EDU>
Subject: [PATCH v2 4/8] x86-64: Add --no-undefined to vDSO build
Date: Sat, 9 Jul 2011 23:22:11 -0400 [thread overview]
Message-ID: <53c5eba0bbfa12935d2381e77ea1b495b709e0e2.1310267866.git.luto@mit.edu> (raw)
In-Reply-To: <cover.1310267866.git.luto@mit.edu>
In-Reply-To: <cover.1310267866.git.luto@mit.edu>
This gives much nicer diagnostics when something goes wrong. It's
supported at least as far back as binutils 2.15.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
---
arch/x86/vdso/Makefile | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index bef0bc9..5d17950 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -26,6 +26,7 @@ targets += vdso.so vdso.so.dbg vdso.lds $(vobjs-y)
export CPPFLAGS_vdso.lds += -P -C
VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
+ -Wl,--no-undefined \
-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096
$(obj)/vdso.o: $(src)/vdso.S $(obj)/vdso.so
--
1.7.6
next prev parent reply other threads:[~2011-07-10 3:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-10 3:22 [PATCH v2 0/8] x86-64 vDSO changes for 3.1 Andy Lutomirski
2011-07-10 3:22 ` [PATCH v2 1/8] x86-64: Improve vsyscall emulation CS and RIP handling Andy Lutomirski
2011-07-11 22:14 ` Borislav Petkov
2011-07-11 22:20 ` Andrew Lutomirski
2011-07-12 7:18 ` Borislav Petkov
2011-07-12 12:58 ` Andrew Lutomirski
2011-07-12 13:24 ` Borislav Petkov
2011-07-13 4:33 ` H. Peter Anvin
2011-07-13 13:17 ` Andrew Lutomirski
2011-07-10 3:22 ` [PATCH v2 2/8] x86: Make alternative instruction pointers relative Andy Lutomirski
2011-07-10 3:22 ` [PATCH v2 3/8] x86-64: Allow alternative patching in the vDSO Andy Lutomirski
2011-07-11 10:41 ` Rakib Mullick
2011-07-11 14:21 ` Andrew Lutomirski
2011-07-10 3:22 ` Andy Lutomirski [this message]
2011-07-10 3:22 ` [PATCH v2 5/8] clocksource: Replace vread with generic arch data Andy Lutomirski
2011-07-10 3:22 ` [PATCH v2 6/8] x86-64: Move vread_tsc and vread_hpet into the vDSO Andy Lutomirski
2011-07-10 3:22 ` [PATCH v2 7/8] ia64: Replace clocksource.fsys_mmio with generic arch data Andy Lutomirski
2011-07-10 3:22 ` [PATCH v2 8/8] Document the vDSO and add a reference parser Andy Lutomirski
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