From: "Maciej W. Rozycki" <macro@mips.com>
To: <libc-alpha@sourceware.org>
Cc: Alan Modra <amodra@gmail.com>
Subject: [PATCH 0/2] Accept absolute symbols whose value is zero [BZ #23307]
Date: Mon, 18 Jun 2018 18:06:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.00.1806181533590.20622@tp.orcam.me.uk> (raw)
Hi,
With a prototype fix for PR ld/21375 I have triggered another issue with
the dynamic loader, where symbols whose `st_value' is zero are silently
ignored in lookup. Consequently references to a global absolute symbol
whose value is zero cannot be resolved.
I have created a small patch series to address this problem. The first
part is the actual fix. The second part is an ABI bump, so that the
linker can set the minimum ABI required for an absolute symbol created to
address the issue covered in PR ld/21375 and make old dynamic loaders fail
with "ELF file ABI version invalid" rather than confusing "undefined
symbol".
See the individual patch descriptions for further details.
Maciej
next reply other threads:[~2018-06-18 18:06 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-18 18:06 Maciej W. Rozycki [this message]
2018-06-18 18:08 ` [PATCH 2/2] libc-abis: Define ABSOLUTE ABI [BZ #19818][BZ #23307] Maciej W. Rozycki
2018-06-25 20:33 ` Florian Weimer
2018-06-27 22:08 ` Maciej W. Rozycki
2018-06-28 6:59 ` Florian Weimer
2018-06-28 13:49 ` Maciej W. Rozycki
2018-06-28 13:54 ` Florian Weimer
2018-06-28 14:54 ` Maciej W. Rozycki
2018-06-29 16:29 ` Maciej W. Rozycki
2018-07-03 13:53 ` Carlos O'Donell
2018-07-05 15:42 ` [PATCH v2 " Maciej W. Rozycki
2018-07-05 16:29 ` Carlos O'Donell
2018-07-05 17:10 ` Maciej W. Rozycki
2018-07-05 18:02 ` Carlos O'Donell
2018-06-18 18:08 ` [PATCH 1/2] elf: Accept absolute (SHN_ABS) symbols whose value is zero [BZ #23307] Maciej W. Rozycki
2018-06-25 20:25 ` Florian Weimer
2018-06-29 16:13 ` [committed v2 " Maciej W. Rozycki
2018-06-29 17:41 ` Joseph Myers
2018-06-29 18:05 ` Maciej W. Rozycki
2018-06-25 19:14 ` [PING][PATCH 0/2] Accept absolute " Maciej W. Rozycki
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