From: Kees Cook <keescook@chromium.org>
To: Lecopzer Chen <lecopzer.chen@mediatek.com>
Cc: masahiroy@kernel.org, michal.lkml@markovi.net, nathan@kernel.org,
ndesaulniers@google.com, samitolvanen@google.com,
linux-kbuild@vger.kernel.org, clang-built-linux@googlegroups.com,
linux-kernel@vger.kernel.org, yj.chiang@mediatek.com
Subject: Re: [PATCH] kbuild: lto: fix module versionings mismatch in incremental build
Date: Mon, 14 Jun 2021 16:09:45 -0700 [thread overview]
Message-ID: <202106141554.A2D26986A@keescook> (raw)
In-Reply-To: <20210614055109.28774-1-lecopzer.chen@mediatek.com>
On Mon, Jun 14, 2021 at 01:51:09PM +0800, Lecopzer Chen wrote:
> When building modules(CONFIG_...=m), I found some of module versions
> are incorrect and set to 0.
> This can be found in build log for first clean build which shows
>
> WARNING: EXPORT symbol "XXXX" [drivers/XXX/XXX.ko] version generation failed, symbol will not be versioned.
I'm doing this, and I don't see the problem:
$ make LLVM=1 LLVM_IAS=1 distclean
$ make LLVM=1 LLVM_IAS=1 menuconfig
*enable LTO*
*enable a module*
$ make LLVM=1 LLVM_IAS=1 -j...
What series of commands (and .config) shows this for you?
--
Kees Cook
next prev parent reply other threads:[~2021-06-14 23:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-14 5:51 [PATCH] kbuild: lto: fix module versionings mismatch in incremental build Lecopzer Chen
2021-06-14 9:49 ` Lecopzer Chen
2021-06-14 23:09 ` Kees Cook [this message]
2021-06-15 6:26 ` Lecopzer Chen
2021-06-15 15:22 ` Kees Cook
2021-06-16 8:02 ` Lecopzer Chen
2021-06-16 16:43 ` Kees Cook
2021-06-17 1:58 ` Lecopzer Chen
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