linux-kernel - [PATCH 0/2] Support kexec/kdump for clang built kernel

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Message-Id: <20190718000206.121392-1-vaibhavrustagi@google.com>
Date:   Wed, 17 Jul 2019 17:02:04 -0700
From:   Vaibhav Rustagi <vaibhavrustagi@...gle.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Vivek Goyal <vgoyal@...hat.com>,
        Vaibhav Rustagi <vaibhavrustagi@...gle.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        stable@...r.kernel.org
Subject: [PATCH 0/2] Support kexec/kdump for clang built kernel

This patch series includes the following:

1. Adding compiler options to not use XMM registers in the purgatory code.
2. Reuse the implementation of memcpy and memset instead of relying on
__builtin_memcpy and __builtin_memset as it causes infinite recursion
in clang.

Nick Desaulniers (1):
  x86/purgatory: do not use __builtin_memcpy and __builtin_memset.

Vaibhav Rustagi (1):
  x86/purgatory: add -mno-sse, -mno-mmx, -mno-sse2 to Makefile

 arch/x86/purgatory/Makefile    |  4 ++++
 arch/x86/purgatory/purgatory.c |  6 ++++++
 arch/x86/purgatory/string.c    | 23 -----------------------
 3 files changed, 10 insertions(+), 23 deletions(-)
 delete mode 100644 arch/x86/purgatory/string.c

-- 
2.22.0.510.g264f2c817a-goog