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, 4 insertions, 6 deletions

diff --git a/elf/dl-support.c b/elf/dl-support.c
index 580b0202ad..dfc9ab760e 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -183,12 +183,6 @@ uint64_t _dl_hwcap_mask __attribute__ ((nocommon));
  * executable but this isn't true for all platforms.  */
 ElfW(Word) _dl_stack_flags = DEFAULT_STACK_PERMS;
 
-/* If loading a shared object requires that we make the stack executable
-   when it was not, we do it by calling this function.
-   It returns an errno code or zero on success.  */
-int (*_dl_make_stack_executable_hook) (void **) = _dl_make_stack_executable;
-
-
 #if THREAD_GSCOPE_IN_TCB
 list_t _dl_stack_used;
 list_t _dl_stack_user;
@@ -197,6 +191,10 @@ size_t _dl_stack_cache_actsize;
 uintptr_t _dl_in_flight_stack;
 int _dl_stack_cache_lock;
 #else
+/* If loading a shared object requires that we make the stack executable
+   when it was not, we do it by calling this function.
+   It returns an errno code or zero on success.  */
+int (*_dl_make_stack_executable_hook) (void **) = _dl_make_stack_executable;
 int _dl_thread_gscope_count;
 void (*_dl_init_static_tls) (struct link_map *) = &_dl_nothread_init_static_tls;
 #endif