Hi!
> mprotect02 triggered an expected SIGSEGV in test, but it puts this
> information in dmesg, which might cause confusion when checking results:
>
> mprotect02[11416]: segfault at 7f9ca0060000 ip 0000003a8e3382ff sp
> 00007fff7aeecb68 error 6 in libc-2.12.so[3a8e200000+197000]
>
> This patch hides the sigfault information from dmesg.
>
> Signed-off-by: Caspar Zhang <[email protected]>
> ---
> testcases/kernel/syscalls/mprotect/mprotect02.c | 20 +++++++++++++-------
> 1 files changed, 13 insertions(+), 7 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/mprotect/mprotect02.c
> b/testcases/kernel/syscalls/mprotect/mprotect02.c
> index 97250c5..1d1fad0 100644
> --- a/testcases/kernel/syscalls/mprotect/mprotect02.c
> +++ b/testcases/kernel/syscalls/mprotect/mprotect02.c
> @@ -60,6 +60,7 @@
>
> #include "safe_macros.h"
>
> +static void sighandler(int sig);
> static void cleanup(void);
> static void setup(void);
>
> @@ -121,13 +122,6 @@ int main(int ac, char **av)
> if (waitpid(pid, &status, 0) == -1)
> tst_brkm(TBROK|TERRNO, cleanup, "waitpid failed");
>
> - if (WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV)
> - tst_resm(TPASS, "got SIGSEGV as expected");
> - else
> - tst_brkm(TBROK, cleanup,
> - "child exited abnormally; wait status = %d",
> - status);
> -
> /* Change the protection to WRITE. */
> TEST(mprotect(addr, sizeof(buf), PROT_WRITE));
>
> @@ -185,9 +179,21 @@ int main()
>
> #endif /* UCLINUX */
>
> +static void sighandler(int sig)
> +{
> + if (sig == SIGSEGV) {
> + tst_resm(TPASS, "got SIGSEGV as expected");
> + tst_exit();
> + } else
> + tst_brkm(TBROK, cleanup, "child exited abnormally: %d",
> + sig);
> +}
Same as previous, please use the signal to propagete the return value to
parent using _exit().
--
Cyril Hrubis
[email protected]
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