[thirdparty/glibc.git] / ports / sysdeps / alpha / libc-tls.c

/* Thread-local storage handling in the ELF dynamic linker.  Alpha version.
   Copyright (C) 2003-2014 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 Alpha, linker optimizations are not required, so __tls_get_addr
   can be called even in statically linked binaries.  In this case module
   must be always 1 and PT_TLS segment exist in the binary, otherwise it
   would not link.  */

void *
__tls_get_addr (tls_index *ti)
{
  dtv_t *dtv = THREAD_DTV ();
  return (char *) dtv[1].pointer.val + ti->ti_offset;
}
Commit	Line	Data
2c7ba672	1	/* Thread-local storage handling in the ELF dynamic linker. Alpha version.
d4697bc9	2	Copyright (C) 2003-2014 Free Software Foundation, Inc.
2c7ba672 UD	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
ab84e3ff PE	16	License along with the GNU C Library. If not, see
ab84e3ff PE	17	<http://www.gnu.org/licenses/>. */
2c7ba672	18
c7d0379e	19	#include <csu/libc-tls.c>
2c7ba672 UD	20	#include <dl-tls.h>
2c7ba672 UD	21
2c7ba672 UD	22	/* On Alpha, linker optimizations are not required, so __tls_get_addr
	23	can be called even in statically linked binaries. In this case module
	24	must be always 1 and PT_TLS segment exist in the binary, otherwise it
	25	would not link. */
	26
	27	void *
	28	__tls_get_addr (tls_index *ti)
	29	{
	30	dtv_t *dtv = THREAD_DTV ();
cac7d7f9	31	return (char *) dtv[1].pointer.val + ti->ti_offset;
2c7ba672	32	}