From c7ef7c3facaf663c3da2d91916bcb2f162fc300e Mon Sep 17 00:00:00 2001 From: Dmitry Chagin Date: Thu, 31 Mar 2022 20:42:03 +0300 Subject: [PATCH] linux(4): Add support for __WALL wait option bit. As FreeBSD does not have __WALL option bit analogue explicitly set all possible option bits to emulate Linux __WALL wait option bit. Reviewed by: emaste Differential revision: https://reviews.freebsd.org/D31555 MFC after: 2 weeks --- sys/compat/linux/linux_misc.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index e2c231ed346..6eae0fc0169 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -1063,6 +1063,14 @@ linux_wait4(struct thread *td, struct linux_wait4_args *args) */ options |= WEXITED | WTRAPPED; + /* + * As FreeBSD does not have __WALL option bit analogue explicitly set all + * possible option bits to emulate Linux __WALL wait option bit. The same + * for waitid system call. + */ + if ((args->options & __WALL) != 0) + options |= WUNTRACED | WCONTINUED | WLINUXCLONE; + if (args->pid == WAIT_ANY) { idtype = P_ALL; id = 0; @@ -1096,6 +1104,9 @@ linux_waitid(struct thread *td, struct linux_waitid_args *args) options = 0; linux_to_bsd_waitopts(args->options, &options); + if ((args->options & __WALL) != 0) + options |= WEXITED | WTRAPPED | WUNTRACED | + WCONTINUED | WLINUXCLONE; switch (args->idtype) { case LINUX_P_ALL: