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48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
#ifndef ATOMIC_GCC_BUILTINS_INCLUDED
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#define ATOMIC_GCC_BUILTINS_INCLUDED
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/* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#define make_atomic_add_body(S) \
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v= __sync_fetch_and_add(a, v);
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#define make_atomic_fas_body(S) \
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v= __sync_lock_test_and_set(a, v);
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#define make_atomic_cas_body(S) \
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int ## S sav; \
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int ## S cmp_val= *cmp; \
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sav= __sync_val_compare_and_swap(a, cmp_val, set);\
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if (!(ret= (sav == cmp_val))) *cmp= sav
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#ifdef MY_ATOMIC_MODE_DUMMY
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#define make_atomic_load_body(S) ret= *a
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#define make_atomic_store_body(S) *a= v
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#define MY_ATOMIC_MODE "gcc-builtins-up"
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#elif defined(HAVE_GCC_C11_ATOMICS)
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#define MY_ATOMIC_MODE "gcc-atomics-smp"
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#define make_atomic_load_body(S) \
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ret= __atomic_load_n(a, __ATOMIC_SEQ_CST)
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#define make_atomic_store_body(S) \
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__atomic_store_n(a, v, __ATOMIC_SEQ_CST)
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#else
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#define MY_ATOMIC_MODE "gcc-builtins-smp"
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#define make_atomic_load_body(S) \
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ret= __sync_fetch_and_or(a, 0);
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#define make_atomic_store_body(S) \
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(void) __sync_lock_test_and_set(a, v);
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#endif
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#endif /* ATOMIC_GCC_BUILTINS_INCLUDED */
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