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Re: AC_FUNC_MMAP lacks <unistd.h> include?
From: |
Matt Turner |
Subject: |
Re: AC_FUNC_MMAP lacks <unistd.h> include? |
Date: |
Thu, 11 May 2023 10:07:47 -0400 |
On Thu, May 11, 2023 at 2:00 AM Paul Eggert <eggert@cs.ucla.edu> wrote:
>
> On 2023-05-10 21:06, Matt Turner wrote:
>
> > We're mmap'ing a 1-byte file, and since the pagesize on amd64 is 4096
> > bytes, only the first 4096 byte page (of two) is mapped. Accessing the
> > second page triggers the SIGBUS.
>
> Ouch, I misread that part of the test. Thanks for reporting that. I
> suppose we should go back to invoking getpagesize despite the hassle of
> configuring it. I installed the attached further patch; please give it a
> try.
That works. Thank you!
- AC_FUNC_MMAP lacks <unistd.h> include?, Sam James, 2023/05/09
- [PATCH] Include unistd.h for getpagesize in AC_FUNC_MMAP, Matt Turner, 2023/05/10
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Paul Eggert, 2023/05/10
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Matt Turner, 2023/05/11
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Florian Weimer, 2023/05/17
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Paul Eggert, 2023/05/17
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Florian Weimer, 2023/05/17
- Re: AC_FUNC_MMAP lacks <unistd.h> include?, Paul Eggert, 2023/05/17