From: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
To: "Cristian Rodríguez" <crrodriguez@opensuse.org>
Cc: libc-alpha@sourceware.org, Florian Weimer <fweimer@redhat.com>,
Carlos O'Donell <carlos@redhat.com>,
Szabolcs Nagy <szabolcs.nagy@arm.com>
Subject: Re: [PATCH v12 0/9] Add arc4random support
Date: Fri, 22 Jul 2022 18:35:52 -0300 [thread overview]
Message-ID: <e06538eb-7e89-ca52-c85c-758c432cf084@linaro.org> (raw)
In-Reply-To: <CAPBLoAccxrSKLMRrYBaW81OKHsS=51sWD=NvPYXnvR_YytvynA@mail.gmail.com>
On 22/07/22 16:12, Cristian Rodríguez wrote:
> On the BSDs the state is allocated with mmap...that would allow it to
> safely use it within the malloc implementation..(or paths that should
> not call malloc for whatever reason)
> just wondering why changing was a choice.
Because it was easiest solution to provide lazy allocation for the
internal buffer, on a previous version I added on TCB but Florian asked
to move to a dynamic buffer because it was too large to impose on every
thread (I tend to agree).
I plan to revise and maybe add a custom allocator so we can also use
MADV_DONTFORK.
prev parent reply other threads:[~2022-07-22 21:35 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 12:21 Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 1/9] stdlib: Add arc4random, arc4random_buf, and arc4random_uniform (BZ #4417) Adhemerval Zanella
2022-07-22 12:35 ` Florian Weimer
2022-07-22 13:00 ` Adhemerval Zanella Netto
2022-07-22 15:31 ` Zack Weinberg
2022-07-22 17:00 ` Adhemerval Zanella Netto
2022-07-22 12:21 ` [PATCH v12 2/9] stdlib: Add arc4random tests Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 3/9] benchtests: Add arc4random benchtest Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 4/9] aarch64: Add optimized chacha20 Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 5/9] x86: Add SSE2 " Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 6/9] x86: Add AVX2 " Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 7/9] powerpc64: Add " Adhemerval Zanella
2022-07-27 14:09 ` Tulio Magno Quites Machado Filho
2022-07-22 12:21 ` [PATCH v12 8/9] s390x: " Adhemerval Zanella
2022-07-22 12:21 ` [PATCH v12 9/9] manual: Add documentation for arc4random functions Adhemerval Zanella
2022-07-22 15:33 ` Zack Weinberg
2022-07-22 17:15 ` Adhemerval Zanella Netto
2022-07-24 15:20 ` Zack Weinberg
2022-07-22 19:12 ` [PATCH v12 0/9] Add arc4random support Cristian Rodríguez
2022-07-22 21:35 ` Adhemerval Zanella Netto [this message]
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