linux-kernel - [PATCH] selftests/nolibc: remove test gettimeofday

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Message-Id: <20230602023824.11004-1-falcon@tinylab.org>
Date:   Fri,  2 Jun 2023 10:38:24 +0800
From:   Zhangjin Wu <falcon@...ylab.org>
To:     w@....eu
Cc:     linux@...ssschuh.net, arnd@...db.de, falcon@...ylab.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        shuah@...nel.org
Subject: [PATCH] selftests/nolibc: remove test gettimeofday_null

Hi, Willy

I plan to send the v3 of rv32 series, but this patch may conflict with:

    selftests/nolibc: remove gettimeofday_bad1/2 completely [1]

If this is mergable, perhaps I should wait for your new
2023xxxx-nolibc-rv32+stkp6 ;-)

And I plan to add the gettimeofday_tv and gettimeofday_tv_tz in the new generic
part1.

    selftests/nolibc: add new gettimeofday test cases [2]

Best regards,
Zhangjin

[1]: https://lore.kernel.org/linux-riscv/485fe4e27c1fd1a84d11e9fc47178a48de39263b.1685387484.git.falcon@tinylab.org/T/#u
[2]: https://lore.kernel.org/linux-riscv/20230530112806.404017-1-falcon@tinylab.org/T/#u

> gettimeofday() is not guaranteed by posix to handle a NULL value as first
> argument gracefully.
> On glibc for example it crashes. (When not going through the vdso)
> 
> Link: https://lore.kernel.org/lkml/96f1134d-ce6e-4d82-ae00-1cd4038809c4@t-8ch.de/
> Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> ---
>  tools/testing/selftests/nolibc/nolibc-test.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
> index 7de46305f419..0fe615ebb086 100644
> --- a/tools/testing/selftests/nolibc/nolibc-test.c
> +++ b/tools/testing/selftests/nolibc/nolibc-test.c
> @@ -583,7 +583,6 @@ int run_syscall(int min, int max)
>  		CASE_TEST(fork);              EXPECT_SYSZR(1, test_fork()); break;
>  		CASE_TEST(getdents64_root);   EXPECT_SYSNE(1, test_getdents64("/"), -1); break;
>  		CASE_TEST(getdents64_null);   EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break;
> -		CASE_TEST(gettimeofday_null); EXPECT_SYSZR(1, gettimeofday(NULL, NULL)); break;
>  #ifdef NOLIBC
>  		CASE_TEST(gettimeofday_bad1); EXPECT_SYSER(1, gettimeofday((void *)1, NULL), -1, EFAULT); break;
>  		CASE_TEST(gettimeofday_bad2); EXPECT_SYSER(1, gettimeofday(NULL, (void *)1), -1, EFAULT); break;
> 
> ---
> base-commit: 5b21219d67d3483144d10332709d0c04f733ab93
> change-id: 20230530-nolibc-gettimeofday-6c72a10ba1a3
> 
> Best regards,
> -- 
> Thomas Weißschuh <linux@...ssschuh.net>