linux-kernel - [PATCH v2 0/2] Simplify kallsyms offset table generation

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Message-ID: <20260116093359.2442297-4-ardb+git@google.com>
Date: Fri, 16 Jan 2026 10:34:00 +0100
From: Ard Biesheuvel <ardb+git@...gle.com>
To: linux-kernel@...r.kernel.org
Cc: Ard Biesheuvel <ardb@...nel.org>, Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nsc@...nel.org>, 
	Kees Cook <kees@...nel.org>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
	linux-kbuild@...r.kernel.org, linux-hardening@...r.kernel.org, 
	linux-mips@...r.kernel.org
Subject: [PATCH v2 0/2] Simplify kallsyms offset table generation

From: Ard Biesheuvel <ardb@...nel.org>

v2:
- implement minimal PC32 support for MIPS so it can tolerate the symbol
  references emitted by kallsyms
- use signed decimal to represent the offset, so that symbols appearing
  before _text can be represented correctly.
- add Kees's ack

Cc: Nathan Chancellor <nathan@...nel.org>
Cc: Nicolas Schier <nsc@...nel.org>
Cc: Kees Cook <kees@...nel.org>
Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Kees Cook <kees@...nel.org>
Cc: linux-kbuild@...r.kernel.org 
Cc: linux-hardening@...r.kernel.org
Cc: linux-mips@...r.kernel.org

Ard Biesheuvel (2):
  mips: Add support for PC32 relocations in vmlinux
  kallsyms: Get rid of kallsyms relative base

 arch/mips/boot/tools/relocs.c       |  2 +
 arch/mips/include/asm/elf.h         |  2 +
 kernel/kallsyms.c                   |  6 +-
 kernel/kallsyms_internal.h          |  1 -
 kernel/vmcore_info.c                |  1 -
 scripts/kallsyms.c                  | 64 ++++++--------------
 scripts/link-vmlinux.sh             |  4 ++
 tools/perf/tests/vmlinux-kallsyms.c |  1 -
 8 files changed, 29 insertions(+), 52 deletions(-)

-- 
2.52.0.457.g6b5491de43-goog