Linux Kernel Selftest development
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From: "Arnd Bergmann" <arnd@arndb.de>
To: "Zhangjin Wu" <falcon@tinylab.org>,
	"Thomas Weißschuh" <thomas@t-8ch.de>, "Willy Tarreau" <w@1wt.eu>
Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	"Thomas Weißschuh" <linux@weissschuh.net>
Subject: Re: [PATCH v3 03/14] selftests/nolibc: add _LARGEFILE64_SOURCE for musl
Date: Fri, 30 Jun 2023 17:23:24 +0200	[thread overview]
Message-ID: <dc7b8b17-4338-424f-a1f1-c12fb7ea08bd@app.fastmail.com> (raw)
In-Reply-To: <c61f64c4d1f69c19b41efae8fef5a94547089ca7.1688134399.git.falcon@tinylab.org>

On Fri, Jun 30, 2023, at 16:44, Zhangjin Wu wrote:
> _GNU_SOURCE Implies _LARGEFILE64_SOURCE in glibc, but in musl, the
> default configuration doesn't enable _LARGEFILE64_SOURCE.
>
> From include/dirent.h of musl, getdents64 is provided as getdents when
> _LARGEFILE64_SOURCE is defined.
>
>     #if defined(_LARGEFILE64_SOURCE)
>     ...
>     #define getdents64 getdents
>     #endif
>
> Let's define _LARGEFILE64_SOURCE to fix up this compile error:

I think a better solution would be to use the normal getdents() instead
of glibc getdents64(), but then define _FILE_OFFSET_BITS=64 to tell
glibc to use the modern version of all filesystem syscalls.

     Arnd

  reply	other threads:[~2023-06-30 15:23 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-30 14:41 [PATCH v3 00/14] selftests/nolibc: allow run with minimal kernel config Zhangjin Wu
2023-06-30 14:42 ` [PATCH v3 01/14] selftests/nolibc: stat_fault: silence NULL argument warning with glibc Zhangjin Wu
2023-06-30 14:43 ` [PATCH v3 02/14] selftests/nolibc: gettid: restore for glibc and musl Zhangjin Wu
2023-06-30 14:44 ` [PATCH v3 03/14] selftests/nolibc: add _LARGEFILE64_SOURCE for musl Zhangjin Wu
2023-06-30 15:23   ` Arnd Bergmann [this message]
2023-06-30 18:01     ` Zhangjin Wu
2023-06-30 18:45       ` Arnd Bergmann
2023-06-30 14:46 ` [PATCH v3 04/14] selftests/nolibc: fix up int_fast16/32_t test cases " Zhangjin Wu
2023-06-30 14:47 ` [PATCH v3 05/14] selftests/nolibc: fix up kernel parameters support Zhangjin Wu
2023-06-30 14:48 ` [PATCH v3 06/14] selftests/nolibc: stat_timestamps: remove procfs dependency Zhangjin Wu
2023-06-30 14:50 ` [PATCH v3 07/14] selftests/nolibc: chroot_exe: " Zhangjin Wu
2023-06-30 14:52 ` [PATCH v3 08/14] selftests/nolibc: link_cross: use /proc/self/cmdline Zhangjin Wu
2023-06-30 14:54 ` [PATCH v3 09/14] tools/nolibc: add rmdir() support Zhangjin Wu
2023-06-30 14:55 ` [PATCH v3 10/14] selftests/nolibc: add a new rmdir() test case Zhangjin Wu
2023-06-30 14:56 ` [PATCH v3 11/14] selftests/nolibc: fix up failures when CONFIG_PROC_FS=n Zhangjin Wu
2023-06-30 14:58 ` [PATCH v3 12/14] selftests/nolibc: prepare /tmp for tmpfs or ramfs Zhangjin Wu
2023-06-30 14:59 ` [PATCH v3 13/14] selftests/nolibc: add chmod_tmpdir test Zhangjin Wu
2023-06-30 15:00 ` [PATCH v3 14/14] selftests/nolibc: vfprintf: remove MEMFD_CREATE dependency Zhangjin Wu

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