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Date: Sun, 19 Jan 2020 17:46:15 +0300 (MSK)
From: Alexander Monakov <amonakov@...ras.ru>
To: musl@...ts.openwall.com
Subject: Re: Minor style patch to exit.c
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
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