/* Assembler macros for Coldfire.
- Copyright (C) 1998, 2003, 2010 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2003, 2010, 2012 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
# define PCREL_OP(OP, SRC, DST, TMP) \
move.l &SRC - ., TMP; OP (-8, %pc, TMP), DST
+/* Load the address of the GOT into register R. */
+# define LOAD_GOT(R) \
+ move.l &_GLOBAL_OFFSET_TABLE_@GOTPC, R; \
+ lea (-6, %pc, R), R
+
#else
/* As above, but PC is the spelling of the PC register. We need this
/* Assembler macros for m680x0.
- Copyright (C) 2010 Free Software Foundation, Inc.
+ Copyright (C) 2010, 2012 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
/* Perform operation OP with PC-relative SRC as the first operand and
DST as the second. TMP is available as a temporary if needed. */
-#define PCREL_OP(OP, SRC, DST, TMP) \
+# define PCREL_OP(OP, SRC, DST, TMP) \
OP SRC(%pc), DST
+/* Load the address of the GOT into register R. */
+# define LOAD_GOT(R) \
+ lea _GLOBAL_OFFSET_TABLE_@GOTPC (%pc), R
+
#else
/* As above, but PC is the spelling of the PC register. We need this
+++ /dev/null
-/* Copyright (C) 2010, 2012 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
-
- 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.
-
- In addition to the permissions in the GNU Lesser General Public
- License, the Free Software Foundation gives you unlimited
- permission to link the compiled version of this file with other
- programs, and to distribute those programs without any restriction
- coming from the use of this file. (The GNU Lesser General Public
- License restrictions do apply in other respects; for example, they
- cover modification of the file, and distribution when not linked
- into another program.)
-
- Note that people who make modified versions of this file are not
- obligated to grant this special exception for their modified
- versions; it is their choice whether to do so. The GNU Lesser
- General Public License gives permission to release a modified
- version without this exception; this exception also makes it
- possible to release a modified version which carries forward this
- exception.
-
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <sysdep.h>
-#include <bits/m68k-vdso.h>
-
- .text
-
- .hidden __vdso_read_tp_stub
-ENTRY (__vdso_read_tp_stub)
- move.l #__NR_get_thread_area, %d0
- trap #0
- move.l %d0, %a0
- rts
-END (__vdso_read_tp_stub)
-
-# ifdef SHARED
-/* GCC will emit calls to this routine. Linux has an
- equivalent helper function (which clobbers fewer registers than
- a normal function call) in a vdso; tail call to the
- helper. */
-# ifdef IS_IN_rtld
-/* rtld gets a hidden copy of __m68k_read_tp. */
- .hidden __m68k_read_tp
-# endif
-ENTRY (__m68k_read_tp)
- move.l #_GLOBAL_OFFSET_TABLE_@GOTPC, %a0
- lea (-6, %pc, %a0), %a0
- move.l M68K_VDSO_SYMBOL (__vdso_read_tp)@GOT(%a0), %a0
- move.l (%a0), %a0
- jmp (%a0)
-END (__m68k_read_tp)
-
-/* The following two stubs are for macros in atomic.h, they can't
- clobber anything. */
-
- .hidden __vdso_atomic_cmpxchg_32_stub
-ENTRY (__vdso_atomic_cmpxchg_32_stub)
- move.l %d2, -(%sp)
- cfi_adjust_cfa_offset (4)
- cfi_rel_offset (%d2, 0)
- move.l %d0, %d2
- move.l #SYS_ify (atomic_cmpxchg_32), %d0
- trap #0
- move.l (%sp)+, %d2
- cfi_adjust_cfa_offset (-4)
- cfi_restore (%d2)
- rts
-END (__vdso_atomic_cmpxchg_32_stub)
-
- .hidden __vdso_atomic_barrier_stub
-ENTRY (__vdso_atomic_barrier_stub)
- move.l %d0, -(%sp)
- cfi_adjust_cfa_offset (4)
- move.l #SYS_ify (atomic_barrier), %d0
- trap #0
- move.l (%sp)+, %d0
- cfi_adjust_cfa_offset (-4)
- rts
-END (__vdso_atomic_barrier_stub)
-# else /* !SHARED */
-/* If the vDSO is not available, use a syscall to get TP. */
- strong_alias (__vdso_read_tp_stub, __m68k_read_tp)
-# endif /* SHARED */
projects / thirdparty / glibc.git / commitdiff
