From: "Dmitry V. Levin" <ldv@altlinux.org>
To: elfutils-devel@sourceware.org
Cc: Mark Wielaard <mark@klomp.org>,
Florian Weimer <fweimer@redhat.com>,
Panu Matilainen <pmatilai@laiskiainen.org>
Subject: Re: [PATCH] elfclassify tool
Date: Fri, 19 Jul 2019 13:43:00 -0000 [thread overview]
Message-ID: <20190719134341.GA26346@altlinux.org> (raw)
In-Reply-To: <ce73f5ebf076570ddc0c1dcd57a07ec39b7555b0.camel@klomp.org>
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On Fri, Jul 19, 2019 at 02:47:09PM +0200, Mark Wielaard wrote:
[...]
> +static bool
> +is_shared (void)
> +{
> + if (!is_loadable ())
> + return false;
> +
> + /* The ELF type is very clear: this is an executable. */
> + if (elf_type == ET_EXEC)
> + return false;
> +
> + /* If the object is marked as PIE, it is definitely an executable,
> + and not a loadlable shared object. */
> + if (has_pie_flag)
> + return false;
> +
> + /* Treat a DT_SONAME tag as a strong indicator that this is a shared
> + object. */
> + if (has_soname)
> + return true;
I'm not sure DT_SONAME is a reliable indicator.
I've seen many cases of DT_SONAME being erroneously applied to
non-libraries, e.g. lib.so was used as soname in openjdk executables.
--
ldv
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next prev parent reply other threads:[~2019-07-19 13:43 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 15:38 Florian Weimer
2019-04-15 15:39 ` Mark Wielaard
2019-04-16 11:38 ` Florian Weimer
2019-04-18 11:17 ` Florian Weimer
2019-07-19 12:47 ` Mark Wielaard
2019-07-19 13:43 ` Dmitry V. Levin [this message]
2019-07-19 14:21 ` Mark
2019-07-19 18:35 ` Dmitry V. Levin
2019-07-19 21:00 ` Florian Weimer
2019-07-19 21:23 ` Dmitry V. Levin
2019-07-19 21:36 ` Mark Wielaard
2019-07-19 22:57 ` Dmitry V. Levin
2019-07-20 21:51 ` Mark Wielaard
2019-07-25 22:39 ` [PATCH] elfclassify: Add --library classification Mark Wielaard
2019-07-26 22:53 ` Dmitry V. Levin
2019-07-26 23:04 ` [PATCH] elfclassify tool Dmitry V. Levin
2019-07-27 11:54 ` Mark Wielaard
2019-07-20 21:40 ` Mark Wielaard
2019-07-22 15:55 ` Florian Weimer
2019-07-26 22:11 ` Mark Wielaard
2019-07-29 8:44 ` Florian Weimer
2019-07-29 14:24 ` Mark Wielaard
2019-08-11 23:38 ` Mark Wielaard
2019-08-12 8:14 ` Florian Weimer
2019-08-12 15:18 ` Mark Wielaard
2019-07-29 9:16 ` Florian Weimer
2019-07-29 14:34 ` Mark Wielaard
2019-07-29 14:38 ` Florian Weimer
2019-08-13 9:44 ` Mark Wielaard
2019-08-13 11:42 ` Mark Wielaard
2019-08-14 20:46 ` [PATCH] config/elfutils.spec.in: package eu-elfclassify Dmitry V. Levin
2019-08-15 7:33 ` Mark Wielaard
2019-07-29 9:22 ` [PATCH] elfclassify tool Florian Weimer
2019-07-29 14:40 ` Mark Wielaard
2019-07-29 14:42 ` Florian Weimer
2019-07-19 13:24 ` Mark Wielaard
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