linux-kernel - [PATCH 0/2] Make badr macro compatible with newer GAS versions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180619192633.21846-1-ard.biesheuvel@linaro.org>
Date:   Tue, 19 Jun 2018 21:26:31 +0200
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux@...linux.org.uk, linux@...ck-us.net, mark.rutland@....com,
        arnd@...db.de, linux-kernel@...r.kernel.org,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: [PATCH 0/2] Make badr macro compatible with newer GAS versions

Work around the mindless and backward incompatible change in GAS that
prevents us from using a simple addition to set the Thumb bit in local
symbol references taken using 'adr' instructions (#2)

As a preparatory step, remove badr occurrences in ARM code sequences
contained in Thumb2 kernels.

Ard Biesheuvel (2):
  ARM: avoid badr macro for switching to Thumb-2 mode
  ARM: assembler: prevent ADR from setting the Thumb bit twice

 arch/arm/common/mcpm_head.S      |  5 ++---
 arch/arm/include/asm/assembler.h | 22 +++++++++++++++++++-
 arch/arm/kernel/head-nommu.S     |  7 +++----
 arch/arm/kernel/head.S           | 15 +++++++------
 arch/arm/kernel/sleep.S          |  7 +++----
 5 files changed, 36 insertions(+), 20 deletions(-)

-- 
2.17.1