From: Alexander Monakov <amonakov@ispras.ru>
To: musl@lists.openwall.com
Subject: Re: [musl] Minor style patch to exit.c
Date: Sun, 19 Jan 2020 17:46:15 +0300 (MSK) [thread overview]
Message-ID: <alpine.LNX.2.20.13.2001191730310.7204@monopod.intra.ispras.ru> (raw)
In-Reply-To: <8299f261-7870-57a6-37cf-d4ce482ad81e@openwall.com>
On Sun, 19 Jan 2020, Alexander Cherepanov wrote:
> Couldn't _start defined as an array? Then separate values could be accessed
> simply as elements of this array. And casts to integers could be limited to
> calculating the number of elements, the terminating value or something.
Yeah, I think usually such linker-provided symbols are declared as
extern arrays. I'm surprised that isn't the case in musl. I don't think
declaring them as arrays helps with making casts pedantically suitable for
calculating number of elements though - as you said, any bijection between
intptr_t and pointers would be a valid implementation of a cast, you're not
guaranteed that (intptr_t)&a[i] == (intptr_t)a + i * sizeof *a.
Alexander
next prev parent reply other threads:[~2020-01-19 14:46 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-19 11:07 Markus Wichmann
2020-01-19 11:12 ` Markus Wichmann
2020-01-19 11:31 ` Szabolcs Nagy
2020-01-19 12:17 ` Markus Wichmann
2020-01-19 13:33 ` Alexander Cherepanov
2020-01-19 14:24 ` Markus Wichmann
2020-01-19 14:49 ` Pascal Cuoq
2020-01-19 15:53 ` Alexander Cherepanov
2020-01-19 16:22 ` Rich Felker
2020-01-19 21:02 ` Alexander Cherepanov
2020-01-19 14:46 ` Alexander Monakov [this message]
2020-01-19 16:18 ` Rich Felker
2020-01-19 17:11 ` Alexander Monakov
2020-01-19 17:17 ` Alexander Monakov
2020-01-19 17:19 ` Rich Felker
2020-01-19 17:32 ` Alexander Monakov
2020-01-19 17:38 ` Rich Felker
2020-01-19 19:13 ` Alexander Monakov
2020-01-19 16:33 ` Alexander Cherepanov
2020-01-19 16:39 ` Rich Felker
2020-01-19 21:34 ` Alexander Cherepanov
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