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From: "Alexey I. Froloff" <raorn@altlinux.org>
To: ALT Devel discussion list <devel@lists.altlinux.org>
Subject: [devel] Q: Переименование символов и сохранение ABI
Date: Sun, 6 Jun 2010 11:09:29 +0400
Message-ID: <20100606070929.GC22655@altlinux.org> (raw)

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Апстрим librep переименовал несколько символов не меняя SONAME.
Хочется сохранить ABI.  Раньше оно выглядело так:

$ nm -D /usr/lib/librep.so.9.5.0 | grep file_uid 
000168e0 T Ffile_uid_p
000547c8 B Qfile_uid_p

Собсно, убрали "_p".  Код раскрывается в следующее:

repv Qfile_uid;
repv Ffile_uid(repv arg) { ... }

Делаю alias'ы:

extern __typeof__ (Ffile_uid) Ffile_uid_p __attribute__ ((alias ("Ffile_uid")));
extern __typeof__ (Qfile_uid) Qfile_uid_p __attribute__ ((alias ("Qfile_uid")));


С функцией такой трюк проходит, а с common symbol нет:

{standard input}:6039: Error: `Qfile_uid_p' can't be equated to common symbol 'Qfile_uid'

У этой библиотеки полтора пользователя, но хотелось бы знать как
в принципе решать подобные проблемы.

P.S. Символ Qfile_uid в выводе rpmsodiff(1) не фигурирует.
P.P.S. Погрепал DSOHOWTO, ответа не нашёл.

-- 
Regards,    --
Sir Raorn.   --- http://thousandsofhate.blogspot.com/

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             reply	other threads:[~2010-06-06  7:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-06  7:09 Alexey I. Froloff [this message]
2010-06-06 11:06 ` Dmitry V. Levin
2010-06-06 17:13   ` Alexey I. Froloff

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