From: Kees Cook <kees@kernel.org>
To: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, Song Liu <song@kernel.org>
Cc: Kees Cook <kees@kernel.org>,
jpoimboe@kernel.org, jikos@kernel.org, mbenes@suse.cz,
pmladek@suse.com, joe.lawrence@redhat.com, nathan@kernel.org,
morbo@google.com, justinstitt@google.com, mcgrof@kernel.org,
thunder.leizhen@huawei.com, kernel-team@meta.com,
mmaurer@google.com, samitolvanen@google.com, mhiramat@kernel.org,
rostedt@goodmis.org
Subject: Re: [PATCH v3 0/2] Fix kallsyms with CONFIG_LTO_CLANG
Date: Thu, 15 Aug 2024 09:34:17 -0700 [thread overview]
Message-ID: <172373965417.621926.8551687004756195926.b4-ty@kernel.org> (raw)
In-Reply-To: <20240807220513.3100483-1-song@kernel.org>
On Wed, 07 Aug 2024 15:05:11 -0700, Song Liu wrote:
> With CONFIG_LTO_CLANG, the compiler/linker adds .llvm.<hash> suffix to
> local symbols to avoid duplications. Existing scripts/kallsyms sorts
> symbols without .llvm.<hash> suffix. However, this causes quite some
> issues later on. Some users of kallsyms, such as livepatch, have to match
> symbols exactly.
>
> Address this by sorting full symbols at build time, and let kallsyms
> lookup APIs to match the symbols exactly.
>
> [...]
Applied to for-linus/hardening, thanks!
[1/2] kallsyms: Do not cleanup .llvm.<hash> suffix before sorting symbols
https://git.kernel.org/kees/c/020925ce9299
[2/2] kallsyms: Match symbols exactly with CONFIG_LTO_CLANG
https://git.kernel.org/kees/c/fb6a421fb615
Take care,
--
Kees Cook
next prev parent reply other threads:[~2024-08-15 16:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-07 22:05 Song Liu
2024-08-07 22:05 ` [PATCH v3 1/2] kallsyms: Do not cleanup .llvm.<hash> suffix before sorting symbols Song Liu
2024-08-13 21:15 ` Song Liu
2024-08-07 22:05 ` [PATCH v3 2/2] kallsyms: Match symbols exactly with CONFIG_LTO_CLANG Song Liu
2024-08-13 21:16 ` Song Liu
2024-08-12 16:21 ` [PATCH v3 0/2] Fix kallsyms " Song Liu
2024-08-12 16:57 ` Luis Chamberlain
2024-08-12 18:13 ` Song Liu
2024-08-15 16:05 ` Kees Cook
2024-08-15 16:09 ` Song Liu
2024-08-13 4:29 ` Masami Hiramatsu
2024-08-13 21:20 ` Song Liu
2024-08-13 21:55 ` Sami Tolvanen
2024-08-14 12:09 ` Petr Mladek
2024-08-15 16:34 ` Kees Cook [this message]
2024-08-30 13:57 ` Miroslav Benes
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