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linux(4): Add support for __WALL wait option bit.

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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
This commit is contained in:
Dmitry Chagin 2022-03-31 20:42:03 +03:00
parent d7e1e138ec
commit c7ef7c3fac
1 changed files with 11 additions and 0 deletions
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11
sys/compat/linux/linux_misc.c
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@ -1063,6 +1063,14 @@ linux_wait4(struct thread *td, struct linux_wait4_args *args)
*/ */
options |= WEXITED | WTRAPPED; 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) { if (args->pid == WAIT_ANY) {
idtype = P_ALL; idtype = P_ALL;
id = 0; id = 0;
@ -1096,6 +1104,9 @@ linux_waitid(struct thread *td, struct linux_waitid_args *args)
options = 0; options = 0;
linux_to_bsd_waitopts(args->options, &options); linux_to_bsd_waitopts(args->options, &options);
if ((args->options & __WALL) != 0)
options |= WEXITED | WTRAPPED | WUNTRACED |
WCONTINUED | WLINUXCLONE;
switch (args->idtype) { switch (args->idtype) {
case LINUX_P_ALL: case LINUX_P_ALL: