From: Peter Zijlstra <peterz@infradead.org>
To: jpoimboe@redhat.com, x86@kernel.org, pjt@google.com,
mbenes@suze.cz, jgross@suse.com
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org
Subject: [RFC][PATCH 0/6] objtool: Optimize !retpoline
Date: Fri, 19 Feb 2021 21:43:00 +0100 [thread overview]
Message-ID: <20210219204300.749932493@infradead.org> (raw)
Hi,
Here's a few patches that go on top of the previously posted series:
https://lkml.kernel.org/r/20210211173044.141215027@infradead.org
https://lkml.kernel.org/r/20210218165938.213678824@infradead.org
and can also be found, in full, here:
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git objtool/wip
The purpose is to replace every compiler generated (tail) call to the retpoline
thunks with an alternative, one that avoids the thunk when retpolines are
disabled.
Very lightly tested...
next reply other threads:[~2021-02-19 21:13 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-19 20:43 Peter Zijlstra [this message]
2021-02-19 20:43 ` [RFC][PATCH 1/6] objtool: Correctly handle retpoline thunk calls Peter Zijlstra
2021-02-19 20:43 ` [RFC][PATCH 2/6] objtool: Fix static_call list generation Peter Zijlstra
2021-02-19 20:43 ` [RFC][PATCH 3/6] objtool: Rework rebuild_reloc logic Peter Zijlstra
2021-02-19 20:43 ` [RFC][PATCH 4/6] objtool: Add elf_create_undef_symbol() Peter Zijlstra
2021-02-19 20:43 ` [RFC][PATCH 5/6] objtool: Allow archs to rewrite retpolines Peter Zijlstra
2021-02-19 20:43 ` [RFC][PATCH 6/6] objtool,x86: Rewrite retpoline thunk calls Peter Zijlstra
2021-02-19 21:55 ` Josh Poimboeuf
2021-02-19 22:01 ` Peter Zijlstra
2021-02-20 0:39 ` Borislav Petkov
2021-02-20 16:48 ` Peter Zijlstra
2021-02-20 17:41 ` Borislav Petkov
2021-02-20 22:28 ` Peter Zijlstra
2021-02-20 22:51 ` Peter Zijlstra
2021-02-21 9:54 ` Borislav Petkov
2021-02-20 22:32 ` Peter Zijlstra
2021-02-21 5:45 ` Jürgen Groß
2021-02-21 9:44 ` Borislav Petkov
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