diff options
Diffstat (limited to 'libthreads')
| -rw-r--r-- | libthreads/cprocs.c | 65 |
1 files changed, 38 insertions, 27 deletions
diff --git a/libthreads/cprocs.c b/libthreads/cprocs.c index 63ac0415..99028801 100644 --- a/libthreads/cprocs.c +++ b/libthreads/cprocs.c @@ -26,6 +26,14 @@ /* * HISTORY * $Log: cprocs.c,v $ + * Revision 1.10 1998/07/20 06:59:14 roland + * 1998-07-20 Roland McGrath <roland@baalperazim.frob.com> + * + * * i386/csw.S (cproc_prepare): Take address of cthread_body as third + * arg, so we don't have to deal with PIC magic to find its address + * without producing a text reloc. + * * cprocs.c (cproc_create): Pass &cthread_body to cproc_prepare. + * * Revision 1.9 1996/11/18 23:54:51 thomas * Mon Nov 18 16:36:56 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * @@ -347,31 +355,8 @@ void cthread_wire() register cproc_t p = cproc_self(); kern_return_t r; - /* - * A wired thread has a port associated with it for all - * of its wait/block cases. We also prebuild a wakeup - * message. - */ - - if (p->wired == MACH_PORT_NULL) { - MACH_CALL(mach_port_allocate(mach_task_self(), - MACH_PORT_RIGHT_RECEIVE, - &p->wired), r); - MACH_CALL(mach_port_insert_right(mach_task_self(), - p->wired, p->wired, - MACH_MSG_TYPE_MAKE_SEND), r); - p->msg.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0); - p->msg.msgh_size = 0; /* initialized in call */ - p->msg.msgh_remote_port = p->wired; - p->msg.msgh_local_port = MACH_PORT_NULL; - p->msg.msgh_kind = MACH_MSGH_KIND_NORMAL; - p->msg.msgh_id = 0; -#ifdef STATISTICS - spin_lock(&wired_lock); - cthread_wired++; - spin_unlock(&wired_lock); -#endif STATISTICS - } + /* In GNU, we wire all threads on creation (in cproc_alloc). */ + assert (p->wired != MACH_PORT_NULL); } /* @@ -381,8 +366,10 @@ void cthread_wire() void cthread_unwire() { register cproc_t p = cproc_self(); - kern_return_t r; + /* This is bad juju in GNU, where all cthreads must be wired. */ + abort(); +#if 0 if (p->wired != MACH_PORT_NULL) { MACH_CALL(mach_port_mod_refs(mach_task_self(), p->wired, MACH_PORT_RIGHT_SEND, -1), r); @@ -395,12 +382,14 @@ void cthread_unwire() spin_unlock(&wired_lock); #endif STATISTICS } +#endif } private cproc_t cproc_alloc() { register cproc_t p = (cproc_t) malloc(sizeof(struct cproc)); + kern_return_t r; p->incarnation = NO_CTHREAD; #if 0 @@ -409,9 +398,31 @@ cproc_alloc() #endif spin_lock_init(&p->lock); - p->wired = MACH_PORT_NULL; p->state = CPROC_RUNNING; p->busy = 0; + + /* + * In GNU, every cthread must be wired. So we just + * initialize P->wired on creation. + * + * A wired thread has a port associated with it for all + * of its wait/block cases. We also prebuild a wakeup + * message. + */ + + MACH_CALL(mach_port_allocate(mach_task_self(), + MACH_PORT_RIGHT_RECEIVE, + &p->wired), r); + MACH_CALL(mach_port_insert_right(mach_task_self(), + p->wired, p->wired, + MACH_MSG_TYPE_MAKE_SEND), r); + p->msg.msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_COPY_SEND, 0); + p->msg.msgh_size = 0; /* initialized in call */ + p->msg.msgh_remote_port = p->wired; + p->msg.msgh_local_port = MACH_PORT_NULL; + p->msg.msgh_kind = MACH_MSGH_KIND_NORMAL; + p->msg.msgh_id = 0; + spin_lock(&cproc_list_lock); p->list = cproc_list; cproc_list = p; |