From: Peter Zijlstra <peterz@infradead.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, dvyukov@google.com,
elver@google.com, andreyknvl@google.com, mark.rutland@arm.com,
mhelsley@vmware.com, rostedt@goodmis.org, jthierry@redhat.com,
mbenes@suse.cz, peterz@infradead.org
Subject: [RFC][PATCH 0/3] objtool: KCOV vs noinstr
Date: Fri, 12 Jun 2020 16:30:34 +0200 [thread overview]
Message-ID: <20200612143034.933422660@infradead.org> (raw)
Hi All,
These patches go on top of objtool/core, although possibly we need them earlier.
In order to solve the KCOV-vs-noinstr situation, we need objtool to rewrite
calls to __sanitizer_cov_*() into NOPs, similar to what recordmcount does.
I'm hoping the pending objtool-recordmcount patches can also reuse some of this.
next reply other threads:[~2020-06-12 14:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-12 14:30 Peter Zijlstra [this message]
2020-06-12 14:30 ` [RFC][PATCH 1/3] objtool: Clean up elf_write() condition Peter Zijlstra
2020-06-15 18:34 ` Matt Helsley
2020-06-15 18:44 ` Peter Zijlstra
2020-06-16 8:32 ` Peter Zijlstra
2020-06-12 14:30 ` [RFC][PATCH 2/3] objtool: Provide elf_write_{insn,reloc}() Peter Zijlstra
2020-06-16 9:12 ` Peter Zijlstra
2020-06-16 19:51 ` Matt Helsley
2020-06-12 14:30 ` [RFC][PATCH 3/3] objtool: Fix noinstr vs KCOV Peter Zijlstra
2020-06-15 7:41 ` Dmitry Vyukov
2020-06-13 19:54 ` [RFC][PATCH 0/3] objtool: KCOV vs noinstr Matt Helsley
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