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authorFlorian Weimer <fweimer@redhat.com>2020-11-16 19:33:30 +0100
committerFlorian Weimer <fweimer@redhat.com>2020-11-16 19:33:30 +0100
commit1daccf403b1bd86370eb94edca794dc106d02039 (patch)
treee54bc8ee71eb92b7114df79e2f378a477c470029 /csu
parentaac0f62c47beee5b546bacc330acc2dd21cda0dc (diff)
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nptl: Move stack list variables into _rtld_global
Now __thread_gscope_wait (the function behind THREAD_GSCOPE_WAIT,
formerly __wait_lookup_done) can be implemented directly in ld.so,
eliminating the unprotected GL (dl_wait_lookup_done) function
pointer.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'csu')
-rw-r--r--csu/libc-tls.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/csu/libc-tls.c b/csu/libc-tls.c
index 06e76bd395..c3589f0a7d 100644
--- a/csu/libc-tls.c
+++ b/csu/libc-tls.c
@@ -24,6 +24,7 @@
 #include <stdio.h>
 #include <sys/param.h>
 #include <array_length.h>
+#include <list.h>
 
 #ifdef SHARED
  #error makefile bug, this file is for static only
@@ -193,6 +194,12 @@ __libc_setup_tls (void)
   if (__builtin_expect (lossage != NULL, 0))
     _startup_fatal (lossage);
 
+#if THREAD_GSCOPE_IN_TCB
+  INIT_LIST_HEAD (&_dl_stack_used);
+  INIT_LIST_HEAD (&_dl_stack_user);
+  list_add (&THREAD_SELF->list, &_dl_stack_user);
+#endif
+
   /* Update the executable's link map with enough information to make
      the TLS routines happy.  */
   main_map->l_tls_align = align;