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/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC 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 General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* Atomic built-in C functions for link compatibility with older code that
was compiled to emit function calls for atomic built-ins.
Notice that if no atomic model has been selected the functions in this
file must not be generated, or else they will result in infinite no-op
loops.
Notice also, that all the generated functions below take three parameters,
which is not actually true for some of the built-in functions. However,
on SH this does not matter, since the first four parameters are always
passed in call clobbered registers.
The return type for the sync_bool_compare_and_swap functions is also
actually supposed to be a bool, but this also doesn't matter since any
int return type <= 32 bit is returned in R0 on SH. */
#if !__SH_ATOMIC_MODEL_NONE__
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#define uint8_t_sz 1
#define uint16_t_sz 2
#define uint32_t_sz 4
#define typesz(x) x##_sz
#define concat(x,y) __ ## x ## _ ## y
#define eval(x,y) concat (x,y)
#define genname(f,t) eval(f, typesz (t))
#define func1(name, type) \
type __attribute__((visibility("hidden"))) \
genname (name, type) (type* x, type y, type z) \
{ \
return __##name (x, y, z); \
}
#define genfuncs(name) \
func1 (name, uint8_t) \
func1 (name, uint16_t) \
func1 (name, uint32_t)
genfuncs (sync_lock_test_and_set)
genfuncs (sync_val_compare_and_swap)
genfuncs (sync_bool_compare_and_swap)
genfuncs (sync_fetch_and_add)
genfuncs (sync_fetch_and_or)
genfuncs (sync_fetch_and_and)
genfuncs (sync_fetch_and_xor)
genfuncs (sync_fetch_and_sub)
genfuncs (sync_fetch_and_nand)
genfuncs (sync_add_and_fetch)
genfuncs (sync_or_and_fetch)
genfuncs (sync_and_and_fetch)
genfuncs (sync_xor_and_fetch)
genfuncs (sync_sub_and_fetch)
genfuncs (sync_nand_and_fetch)
#endif
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