linux-kernel - [PATCH 0/3] objtool: GCC 8 support

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Message-Id: <cover.1525923412.git.jpoimboe@redhat.com>
Date:   Wed,  9 May 2018 22:39:13 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     x86@...nel.org
Cc:     linux-kernel@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        David Laight <David.Laight@...LAB.COM>,
        damian <damian.tometzki@...oud.com>
Subject: [PATCH 0/3] objtool: GCC 8 support

Now that GCC 8 is out, several people have complained about a bunch of
objtool warnings.  These patches fix all known warnings.

Patch 1 is a repost of a previous fix -- unrelated to GCC 8, but a
prereq for the following two patches.

Patch 2 fixes the vast majority of the warnings, caused by GCC 8's new
usage of "cold" subfunctions for unlikely text.

Patch 3 fixes a few more warnings, related to switch tables.

Josh Poimboeuf (3):
  objtool: Fix "noreturn" detection for recursive sibling calls
  objtool: Support GCC 8 cold subfunctions
  objtool: Support GCC 8 switch tables

 tools/objtool/check.c | 125 ++++++++++++++++++++++++++----------------
 tools/objtool/elf.c   |  42 +++++++++++++-
 tools/objtool/elf.h   |   2 +
 3 files changed, 121 insertions(+), 48 deletions(-)

-- 
2.17.0