libpthread/nptl/sysdeps/metag/libc-tls.c

   1 /*
   2  * Thread-local storage handling in statically linked binaries.  Meta version.
   3  * Copyright (C) 2009 Free Software Foundation, Inc.
   4  *
   5  * Based on GNU C Library (file: libc/sysdeps/sh/libc-tls.c)
   6  *
   7  * Copyright (C) 2010 STMicroelectronics Ltd.
   8  * Copyright (C) 2013 Imagination Technologies Ltd.
   9  *
  10  * Author: Filippo Arcidiacono <filippo.arcidiacono@st.com>
  11  *
  12  * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
  13  *
  14  */
  15
  16 #include <sysdeps/generic/libc-tls.c>
  17 #include <dl-tls.h>
  18
  19 #if defined (USE_TLS) && (USE_TLS)
  20
  21 /* On Meta, linker optimizations are not required, so __tls_get_addr
  22    can be called even in statically linked binaries.  In this case module
  23    must be always 1 and PT_TLS segment exist in the binary, otherwise it
  24    would not link.  */
  25
  26 void *
  27 __tls_get_addr (tls_index *ti)
  28 {
  29   dtv_t *dtv = THREAD_DTV ();
  30   return (char *) dtv[1].pointer.val + ti->ti_offset;
  31 }
  32
  33 #endif