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MFi386 parts of rev 1.55 (modulo real MD parts):

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- implement CLONE_PARENT semantic
 - lock proc in the currently disabled part of CLONE_THREAD

Submitted by:	rdivacky
This commit is contained in:
Alexander Leidinger 2006-08-28 13:09:24 +00:00
parent 215318a7a3
commit 4038a816f8
1 changed files with 10 additions and 9 deletions
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19
sys/amd64/linux32/linux32_machdep.c
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@ -570,24 +570,24 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
}
}
if (args->flags & CLONE_PARENT) {
#ifdef DEBUG
printf("linux_clone: CLONE_PARENT\n");
#endif
if (args->flags & (CLONE_PARENT|CLONE_THREAD)) {
sx_xlock(&proctree_lock);
PROC_LOCK(p2);
proc_reparent(p2, td->td_proc->p_pptr);
PROC_UNLOCK(p2);
sx_xunlock(&proctree_lock);
}
if (args->flags & CLONE_THREAD) {
/* XXX: linux mangles pgrp and pptr somehow
* I think it might be this but I am not sure.
*/
#ifdef notyet
PROC_LOCK(p2);
p2->p_pgrp = td->td_proc->p_pgrp;
p2->p_pptr = td->td_proc->p_pptr;
PROC_UNLOCK(p2);
#endif
exit_signal = 0;
#ifdef DEBUG
printf("linux_clone: CLONE_THREADS\n");
#endif
}
if (args->flags & CLONE_CHILD_SETTID)
@ -599,6 +599,7 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
em->child_clear_tid = args->child_tidptr;
else
em->child_clear_tid = NULL;
EMUL_UNLOCK(&emul_lock);
PROC_LOCK(p2);