diff options
| -rw-r--r-- | sys/kern/kern_kse.c | 24 | ||||
| -rw-r--r-- | sys/kern/kern_thread.c | 24 | ||||
| -rw-r--r-- | sys/kern/syscalls.master | 2 | ||||
| -rw-r--r-- | sys/sys/kse.h | 1 |
4 files changed, 51 insertions, 0 deletions
diff --git a/sys/kern/kern_kse.c b/sys/kern/kern_kse.c index 985fce2..f47beec 100644 --- a/sys/kern/kern_kse.c +++ b/sys/kern/kern_kse.c @@ -382,6 +382,30 @@ proc_linkup(struct proc *p, struct ksegrp *kg, thread_link(td, kg); } +#ifndef _SYS_SYSPROTO_H_ +struct kse_switchin_args { + const struct __mcontext *mcp; + long val; + long *loc; +}; +#endif + +int +kse_switchin(struct thread *td, struct kse_switchin_args *uap) +{ + mcontext_t mc; + int error; + + error = (uap->mcp == NULL) ? EINVAL : 0; + if (!error) + error = copyin(uap->mcp, &mc, sizeof(mc)); + if (!error) + error = set_mcontext(td, &mc); + if (!error && uap->loc != NULL) + suword(uap->loc, uap->val); + return ((error == 0) ? EJUSTRETURN : error); +} + /* struct kse_thr_interrupt_args { struct kse_thr_mailbox * tmbx; diff --git a/sys/kern/kern_thread.c b/sys/kern/kern_thread.c index 985fce2..f47beec 100644 --- a/sys/kern/kern_thread.c +++ b/sys/kern/kern_thread.c @@ -382,6 +382,30 @@ proc_linkup(struct proc *p, struct ksegrp *kg, thread_link(td, kg); } +#ifndef _SYS_SYSPROTO_H_ +struct kse_switchin_args { + const struct __mcontext *mcp; + long val; + long *loc; +}; +#endif + +int +kse_switchin(struct thread *td, struct kse_switchin_args *uap) +{ + mcontext_t mc; + int error; + + error = (uap->mcp == NULL) ? EINVAL : 0; + if (!error) + error = copyin(uap->mcp, &mc, sizeof(mc)); + if (!error) + error = set_mcontext(td, &mc); + if (!error && uap->loc != NULL) + suword(uap->loc, uap->val); + return ((error == 0) ? EJUSTRETURN : error); +} + /* struct kse_thr_interrupt_args { struct kse_thr_mailbox * tmbx; diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master index 483c92d..76ed423 100644 --- a/sys/kern/syscalls.master +++ b/sys/kern/syscalls.master @@ -639,6 +639,8 @@ int attrnamespace, void *data, size_t nbytes); } 439 STD BSD { ssize_t extattr_list_link(const char *path, \ int attrnamespace, void *data, size_t nbytes); } +440 MSTD BSD { int kse_switchin(const struct __mcontext *mcp, \ + long val, long *loc); } ; Please copy any additions and changes to the following compatability tables: ; sys/ia64/ia32/syscalls.master (take a best guess) diff --git a/sys/sys/kse.h b/sys/sys/kse.h index 9cb096b..95b9fff 100644 --- a/sys/sys/kse.h +++ b/sys/sys/kse.h @@ -109,6 +109,7 @@ int kse_exit(void); int kse_release(struct timespec *); int kse_thr_interrupt(struct kse_thr_mailbox *, int, long); int kse_wakeup(struct kse_mailbox *); +int kse_switchin(mcontext_t *, long, long *); #endif /* !_KERNEL */ #endif /* !_SYS_KSE_H_ */ |
