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From:   Andreas Schwab <schwab@linux-m68k.org>
To:     "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com>
Cc:     Geert Uytterhoeven <geert@linux-m68k.org>,
        Josh Poimboeuf <jpoimboe@kernel.org>,
        Jiri Kosina <jikos@kernel.org>,
        Miroslav Benes <mbenes@suse.cz>,
        Petr Mladek <pmladek@suse.com>,
        Joe Lawrence <joe.lawrence@redhat.com>,
        <live-patching@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        Masahiro Yamada <masahiroy@kernel.org>,
        Alexei Starovoitov <ast@kernel.org>,
        Jiri Olsa <jolsa@kernel.org>,
        Kees Cook <keescook@chromium.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Luis Chamberlain <mcgrof@kernel.org>,
        <linux-modules@vger.kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ingo Molnar <mingo@redhat.com>,
        David Laight <David.Laight@aculab.com>,
        linux-m68k <linux-m68k@lists.linux-m68k.org>,
        "Jason A. Donenfeld" <Jason@zx2c4.com>
Subject: Re: [PATCH v9] kallsyms: Add self-test facility
References: <20221115083349.1662-1-thunder.leizhen@huawei.com>
        <CAMuHMdWM6+pC3yUqy+hHRrAf1BCz2sz1KQv2zxS+Wz-639X-aA@mail.gmail.com>
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        <CAMuHMdWPSeieR-sGuozd3kWGjVw85EV40irqM9aErXufifzFNA@mail.gmail.com>
        <49070ac3-02bb-a3b3-b929-ede07e3b2c95@huawei.com>
        <e81710a9-2c45-0724-ec5f-727977202858@huawei.com>
        <CAMuHMdWAAQNJd21fhodDONb40LFMae3V_517iT22FykCqG90Og@mail.gmail.com>
        <4aaede14-8bd3-6071-f17b-7efcb5f0de42@huawei.com>
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Date:   Fri, 16 Dec 2022 14:47:40 +0100
In-Reply-To: <1739960e-7f95-88ef-9b91-31c7504bb7fd@huawei.com> (Leizhen's
        message of "Fri, 16 Dec 2022 21:31:04 +0800")
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On Dez 16 2022, Leizhen (ThunderTown) wrote:

> On 2022/12/16 19:57, Andreas Schwab wrote:
>> On Dez 16 2022, Leizhen (ThunderTown) wrote:
>> 
>>> It seems that the problem is still strcmp(). After I commented strcmp() in
>>> arch/m68k/include/asm/string.h, and force it to use the one in lib/string.c,
>>> it works well.
>> 
>> Does that help?
>
> It still needs to add 'volatile' to prevent compiler optimizations.

If that makes a difference, then something else is wrong.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."