about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/powerpc/libc-tls.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/powerpc/libc-tls.c')
-rw-r--r--REORG.TODO/sysdeps/powerpc/libc-tls.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/powerpc/libc-tls.c b/REORG.TODO/sysdeps/powerpc/libc-tls.c
new file mode 100644
index 0000000000..76d5c9abb9
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/libc-tls.c
@@ -0,0 +1,32 @@
+/* Thread-local storage handling in the ELF dynamic linker.  PowerPC version.
+   Copyright (C) 2015-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <csu/libc-tls.c>
+#include <dl-tls.h>
+
+/* On powerpc, the linker usually optimizes code sequences used to access
+   Thread Local Storage.  However, when the user disables these optimizations
+   by passing --no-tls-optimze to the linker, we need to provide __tls_get_addr
+   in static libc in order to avoid undefined references to that symbol.  */
+
+void *
+__tls_get_addr (tls_index *ti)
+{
+  dtv_t *dtv = THREAD_DTV ();
+  return (char *) dtv[1].pointer.val + ti->ti_offset + TLS_DTV_OFFSET;
+}