glibc/sysdeps/tile/tls-macros.h
2012-03-09 23:56:38 +00:00

57 lines
2.4 KiB
C

/* Copyright (C) 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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/>. */
#ifdef __tilegx__
#define TLS_GD_REL "hw0_last_tls_gd"
#define TLS_IE_REL "hw0_last_tls_ie"
#define LD_TLS "ld_tls"
#else
#define TLS_GD_REL "tls_gd_lo16"
#define TLS_IE_REL "tls_ie_lo16"
#define LD_TLS "lw_tls"
#endif
#define TLS_GD(x) \
({ \
int *__retval; \
extern char _GLOBAL_OFFSET_TABLE_[]; \
\
asm ("addli r0, %1, " TLS_GD_REL "(" #x ")\n\t" \
"jal tls_gd_call(" #x ")\n\t" \
"addi %0, r0, tls_gd_add(" #x ")" : \
"=r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_) : \
"r25", "r26", "r27", "r28", "r29"); \
__retval; })
/* No special support for LD mode. */
#define TLS_LD TLS_GD
#define TLS_IE(x) \
({ \
int *__retval; \
extern char _GLOBAL_OFFSET_TABLE_[]; \
\
asm ("addli %0, %1, " TLS_IE_REL "(" #x ")\n\t" \
LD_TLS " %0, %0, tls_ie_load(" #x ")\n\t" \
"add %0, %0, tp" : \
"=r" (__retval) : "r" (_GLOBAL_OFFSET_TABLE_)); \
__retval; })
/* No special support for LE mode. */
#define TLS_LE TLS_IE