linux-kernel - [PATCH v2 0/2] vDSO: Always reject undefined references during linking

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Message-Id: <20250306-vdso-checkundef-v2-0-a26cc315fd73@linutronix.de>
Date: Thu, 06 Mar 2025 15:07:19 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
 Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
 "H. Peter Anvin" <hpa@...or.com>, "David S. Miller" <davem@...emloft.net>, 
 Andreas Larsson <andreas@...sler.com>
Cc: linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH v2 0/2] vDSO: Always reject undefined references during
 linking

Instead of using a custom script to detect and fail on undefined
references, use --no-undefined for all VDSO linker invocations.

Drop the now unused checkundef.sh scripts.

These patches can be picked up by the architecture maintainers.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
Changes in v2:
- Rebase unto current torvalds/master
- Drop already applied patch for UM
- Drop spurious "in" from patch subjects
- Link to v1: https://lore.kernel.org/r/20241011-vdso-checkundef-v1-0-1a46e0352d20@linutronix.de

---
Thomas Weißschuh (2):
      x86: vdso: Always reject undefined references during linking
      sparc: vdso: Always reject undefined references during linking

 arch/sparc/vdso/Makefile          |  7 +++----
 arch/sparc/vdso/checkundef.sh     | 10 ----------
 arch/x86/entry/vdso/Makefile      |  7 +++----
 arch/x86/entry/vdso/checkundef.sh | 10 ----------
 4 files changed, 6 insertions(+), 28 deletions(-)
---
base-commit: 848e076317446f9c663771ddec142d7c2eb4cb43
change-id: 20241011-vdso-checkundef-f6dd0612025b

Best regards,
-- 
Thomas Weißschuh <thomas.weissschuh@...utronix.de>