Revert "Patch [1/4] async-signal safe TLS."

This reverts commit 69a17d9d245dc3551792e95e1823cc2d877592f3.

2 files changed, 0 insertions, 50 deletions

diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.c b/sysdeps/unix/sysv/linux/dl-sysdep.c
index 676c9b2..2810074 100644
--- a/sysdeps/unix/sysv/linux/dl-sysdep.c
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.c
@@ -19,7 +19,6 @@
 /* Linux needs some special initialization, but otherwise uses
    the generic dynamic linker system interface code.  */
 
-#include <assert.h>
 #include <string.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -131,48 +130,3 @@ _dl_discover_osversion (void)
 
   return version;
 }
-
-/* Mask every signal, returning the previous sigmask in OLD.  */
-void
-internal_function
-_dl_mask_all_signals (sigset_t *old)
-{
-  int ret;
-  sigset_t new;
-
-  sigfillset (&new);
-
-  /* This function serves as a replacement to pthread_sigmask, which
-     isn't available from within the dynamic linker since it would require
-     linking with libpthread. We duplicate some of the functionality here
-     to avoid requiring libpthread.  This isn't quite identical to
-     pthread_sigmask in that we do not mask internal signals used for
-     cancellation and setxid handling. This disables asynchronous
-     cancellation for the duration the signals are disabled, but it's a
-     small window, and prevents any problems with the use of TLS variables
-     in the signal handlers that would have executed.  */
-
-  /* It's very important we don't touch errno here, as that's TLS; since this
-     gets called from get_tls_addr we might end up recursing.  */
-
-  INTERNAL_SYSCALL_DECL (err);
-
-  ret = INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &new, old,
-			  _NSIG / 8);
-
-  assert (ret == 0);
-}
-
-/* Return sigmask to what it was before a call to _dl_mask_all_signals.  */
-void
-internal_function
-_dl_unmask_signals (sigset_t *old)
-{
-  int ret;
-  INTERNAL_SYSCALL_DECL (err);
-
-  ret = INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, old, NULL,
-			  _NSIG / 8);
-
-  assert (ret == 0);
-}
diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.h b/sysdeps/unix/sysv/linux/dl-sysdep.h
index 8e39c83..096019f 100644
--- a/sysdeps/unix/sysv/linux/dl-sysdep.h
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.h
@@ -30,8 +30,4 @@
 /* Get version of the OS.  */
 extern int _dl_discover_osversion (void) attribute_hidden;
 # define HAVE_DL_DISCOVER_OSVERSION	1
-
-#include <signal.h>
-void _dl_mask_all_signals (sigset_t *) internal_function;
-void _dl_unmask_all_signals (sigset_t *) internal_function;
 #endif