The branch main has been updated by dchagin:
URL:
https://cgit.FreeBSD.org/src/commit/?id=c7ef7c3facaf663c3da2d91916bcb2f162fc300e
commit c7ef7c3facaf663c3da2d91916bcb2f162fc300e
Author: Dmitry Chagin <dcha...@freebsd.org>
AuthorDate: 2022-03-31 17:42:03 +0000
Commit: Dmitry Chagin <dcha...@freebsd.org>
CommitDate: 2022-03-31 17:42:03 +0000
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 e2c231ed3460..6eae0fc01694 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:
