From: "Martin Liška" <mliska@suse.cz>
To: Cary Coutant <ccoutant@gmail.com>
Cc: Binutils <binutils@sourceware.org>, Ian Lance Taylor <iant@golang.org>
Subject: Re: [PATCH] gold: fix crash for empty file
Date: Thu, 6 Jan 2022 09:35:24 +0100 [thread overview]
Message-ID: <3c9eb1e3-6dd0-8e51-312f-beedecd5facc@suse.cz> (raw)
In-Reply-To: <CAJimCsFP6h1qXxaF5zRCegHf7RG+bMoX8704jn4D9XcCWV3xqg@mail.gmail.com>
On 1/5/22 18:35, Cary Coutant wrote:
>>>> @@ -701,6 +701,8 @@ Symbol_table::resolve_forwards(const Symbol* from) const
>>>> Symbol*
>>>> Symbol_table::lookup(const char* name, const char* version) const
>>>> {
>>>> + if (name == NULL)
>>>> + return NULL;
>
> I'm more concerned with why a NULL name got passed to lookup in the
> first place. In this test case, it's because parameters->entry() is
> returning NULL, which in turn is because no (valid) object files have
> been named, so a target hasn't been determined. I'd be more
> comfortable with maintaining the requirement of passing a non-null
> name to Symbol_table::lookup() (perhaps even adding an assert to that
> effect), and then fixing Plugin_hook::run() to check for NULL before
> calling lookup.
Sure, I must confess I don't know gold enough. Thus, leaving that to you.
Cheers,
Martin
>
> -cary
prev parent reply other threads:[~2022-01-06 8:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 14:01 Martin Liška
2021-11-29 9:00 ` Martin Liška
2022-01-05 10:15 ` Martin Liška
2022-01-05 17:35 ` Cary Coutant
2022-01-06 8:35 ` Martin Liška [this message]
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