static int
initial_thread_trampoline(struct thread *th)
{
lispobj function;
#if defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64)
lispobj *args = NULL;
#endif
#ifdef LISP_FEATURE_SB_THREAD
pthread_setspecific(lisp_thread, (void *)1);
#endif
#if defined(THREADS_USING_GCSIGNAL) && (defined(LISP_FEATURE_PPC) || defined(LISP_FEATURE_ARM64))
/* SIG_STOP_FOR_GC defaults to blocked on PPC? */
unblock_gc_signals(0,0);
#endif
function = th->no_tls_value_marker;
th->no_tls_value_marker = NO_TLS_VALUE_MARKER_WIDETAG;
if(arch_os_thread_init(th)==0) return 1;
link_thread(th);
th->os_thread=thread_self();
#ifndef LISP_FEATURE_WIN32
protect_control_stack_hard_guard_page(1, NULL);
#endif
protect_binding_stack_hard_guard_page(1, NULL);
protect_alien_stack_hard_guard_page(1, NULL);
#ifndef LISP_FEATURE_WIN32
protect_control_stack_guard_page(1, NULL);
#endif
protect_binding_stack_guard_page(1, NULL);
protect_alien_stack_guard_page(1, NULL);
/* WIN32 has a special stack arrangment, calling
* call_into_lisp_first_time will put the new stack in the middle
* of the current stack */
#if !defined(LISP_FEATURE_WIN32) && (defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
return call_into_lisp_first_time(function,args,0);
#else
return funcall0(function);
#endif
}
/* this is the first thing that runs in the child (which is why the
* silly calling convention). Basically it calls the user's requested
* lisp function after doing arch_os_thread_init and whatever other
* bookkeeping needs to be done
*/
int
new_thread_trampoline(struct thread *th)
{
int result;
init_thread_data scribble;
FSHOW((stderr,"/creating thread %lu\n", thread_self()));
check_deferrables_blocked_or_lose(0);
#ifndef LISP_FEATURE_SB_SAFEPOINT
check_gc_signals_unblocked_or_lose(0);
#endif
lispobj function = th->no_tls_value_marker;
th->no_tls_value_marker = NO_TLS_VALUE_MARKER_WIDETAG;
init_new_thread(th, &scribble, 1);
result = funcall0(function);
undo_init_new_thread(th, &scribble);
schedule_thread_post_mortem(th);
FSHOW((stderr,"/exiting thread %lu\n", thread_self()));
return result;
}
