Viewing file:  gcc_builtins.h (1.65 KB) -rw-r--r--
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#ifndef ATOMIC_GCC_BUILTINS_INCLUDED
#define ATOMIC_GCC_BUILTINS_INCLUDED
/* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
This program 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; version 2 of the License.
This program 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#define make_atomic_add_body(S) \
v= __sync_fetch_and_add(a, v);
#define make_atomic_fas_body(S) \
v= __sync_lock_test_and_set(a, v);
#define make_atomic_cas_body(S) \
int ## S sav; \
int ## S cmp_val= *cmp; \
sav= __sync_val_compare_and_swap(a, cmp_val, set);\
if (!(ret= (sav == cmp_val))) *cmp= sav
#ifdef MY_ATOMIC_MODE_DUMMY
#define make_atomic_load_body(S) ret= *a
#define make_atomic_store_body(S) *a= v
#define MY_ATOMIC_MODE "gcc-builtins-up"
#else
#define MY_ATOMIC_MODE "gcc-builtins-smp"
#define make_atomic_load_body(S) \
ret= __sync_fetch_and_or(a, 0);
#define make_atomic_store_body(S) \
(void) __sync_lock_test_and_set(a, v);
#endif
#endif /* ATOMIC_GCC_BUILTINS_INCLUDED */
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