nptl: Move changing of stack permissions into ld.so

All the stack lists are now in _rtld_global, so it is possible
to change stack permissions directly from there, instead of
calling into libpthread to do the change.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 8ab247f977..3a6b436400 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -335,8 +335,11 @@ extern void __deallocate_stack (struct pthread *pd) attribute_hidden;
    function also re-initializes the lock for the stack cache.  */
 extern void __reclaim_stacks (void) attribute_hidden;
 
-/* Make all threads's stacks executable.  */
-extern int __make_stacks_executable (void **stack_endp) attribute_hidden;
+/* Change the permissions of a thread stack.  Called from
+   _dl_make_stacks_executable and pthread_create.  */
+int
+__nptl_change_stack_perm (struct pthread *pd);
+rtld_hidden_proto (__nptl_change_stack_perm)
 
 /* longjmp handling.  */
 extern void __pthread_cleanup_upto (__jmp_buf target, char *targetframe);