From: "Jₑₙₛ Gustedt" <jens.gustedt@inria.fr>
To: Rich Felker <dalias@libc.org>
Cc: Joakim Sindholt <opensource@zhasha.com>, musl@lists.openwall.com
Subject: Re: [musl] [C23 string conversion 1/3] C23: add the new memset_explicit function
Date: Sat, 27 May 2023 08:49:47 +0200 [thread overview]
Message-ID: <20230527084947.71628791@inria.fr> (raw)
In-Reply-To: <20230526205720.GP4163@brightrain.aerifal.cx>
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Rich,
on Fri, 26 May 2023 16:57:21 -0400 you (Rich Felker <dalias@libc.org>)
wrote:
> Do you have something in mind about how the explcit_bzero
> implementation we have doesn't do that?
I would be more comfortable with a stronger synchronization barrier
that works for all memory models and also in the presence of threads
and signals. So maybe using `a_barrier()`?
Also I think that relying on the compiler's `memset` is not a good
strategy. This puts us at their merci of whatever efficiency games
they are playing, now or in the future.
Thanks
Jₑₙₛ
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next prev parent reply other threads:[~2023-05-27 6:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-26 9:25 [musl] [C23 string conversion 0/3] Jens Gustedt
2023-05-26 9:25 ` [musl] [C23 string conversion 1/3] C23: add the new memset_explicit function Jens Gustedt
2023-05-26 9:52 ` Joakim Sindholt
2023-05-26 10:18 ` Jₑₙₛ Gustedt
2023-05-26 20:16 ` Rich Felker
2023-05-26 20:35 ` Jₑₙₛ Gustedt
2023-05-26 20:57 ` Rich Felker
2023-05-27 6:49 ` Jₑₙₛ Gustedt [this message]
2023-05-27 13:52 ` Rich Felker
2023-05-28 10:13 ` NRK
2023-05-29 7:48 ` Jₑₙₛ Gustedt
2023-05-26 9:25 ` [musl] [C23 string conversion 2/3] C23: implement the c8rtomb and mbrtoc8 functions Jens Gustedt
2023-05-26 9:25 ` [musl] [C23 string conversion 3/3] C23: add the new include guards for string.h and wchar.h Jens Gustedt
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