82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* Copyright (C) 2012-2016 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC 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; either version 3, or (at your option)
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any later version.
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GCC 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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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* Atomic built-in C functions for link compatibility with older code that
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was compiled to emit function calls for atomic built-ins.
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Notice that if no atomic model has been selected the functions in this
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file must not be generated, or else they will result in infinite no-op
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loops.
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Notice also, that all the generated functions below take three parameters,
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which is not actually true for some of the built-in functions. However,
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on SH this does not matter, since the first four parameters are always
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passed in call clobbered registers.
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The return type for the sync_bool_compare_and_swap functions is also
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actually supposed to be a bool, but this also doesn't matter since any
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int return type <= 32 bit is returned in R0 on SH. */
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#if !__SH_ATOMIC_MODEL_NONE__
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typedef unsigned char uint8_t;
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typedef unsigned short uint16_t;
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typedef unsigned int uint32_t;
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#define uint8_t_sz 1
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#define uint16_t_sz 2
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#define uint32_t_sz 4
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#define typesz(x) x##_sz
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#define concat(x,y) __ ## x ## _ ## y
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#define eval(x,y) concat (x,y)
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#define genname(f,t) eval(f, typesz (t))
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#define func1(name, type) \
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type __attribute__((visibility("hidden"))) \
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genname (name, type) (type* x, type y, type z) \
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{ \
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return __##name (x, y, z); \
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}
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#define genfuncs(name) \
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func1 (name, uint8_t) \
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func1 (name, uint16_t) \
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func1 (name, uint32_t)
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genfuncs (sync_lock_test_and_set)
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genfuncs (sync_val_compare_and_swap)
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genfuncs (sync_bool_compare_and_swap)
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genfuncs (sync_fetch_and_add)
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genfuncs (sync_fetch_and_or)
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genfuncs (sync_fetch_and_and)
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genfuncs (sync_fetch_and_xor)
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genfuncs (sync_fetch_and_sub)
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genfuncs (sync_fetch_and_nand)
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genfuncs (sync_add_and_fetch)
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genfuncs (sync_or_and_fetch)
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genfuncs (sync_and_and_fetch)
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genfuncs (sync_xor_and_fetch)
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genfuncs (sync_sub_and_fetch)
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genfuncs (sync_nand_and_fetch)
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#endif
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