24d1d8ec9e
With tilepro support removal we can now simplify internal tile support by moving the directory structure to avoid the unnecessary directory levels in tile/tilegx both on generic and linux folders. Checked with a build for tilegx-linux-gnu and tilegx-linux-gnu-32 with and without the patch, there is no difference in generated binary with a dissassemble. * stdlib/bug-getcontext.c (do_test): Remove tilepro mention in comment. * sysdeps/tile/preconfigure: Remove tilegx folder. * sysdeps/tile/tilegx/Implies: Move definitions to ... * sysdeps/tile/Implies: ... here. * sysdeps/tile/tilegx/Makefile: Move rules to ... * sysdeps/tile/Makefile: ... here. * sysdeps/tile/tilegx/atomic-machine.h: Move definitions to ... * sysdeps/tile/atomic-machine.h: ... here. Add include guards. * sysdeps/tile/tilegx/bits/wordsize.h: Move to ... * sysdeps/tile/bits/wordsize.h: ... here. * sysdeps/tile/tilegx/*: Move to ... * sysdeps/tile/*: ... here. * sysdeps/tile/tilegx/tilegx32/Implies: Move to ... * sysdeps/tile/tilegx32/Implies: ... here. * sysdeps/tile/tilegx/tilegx64/Implies: Move to ... * sysdeps/tile/tilegx64/Implies: ... here. * sysdeps/unix/sysv/linux/tile/tilegx/Makefile: Move definitions to ... * sysdeps/unix/sysv/linux/tile/Makefile: ... here. * sysdeps/unix/sysv/linux/tile/tilegx/*: Move to ... * sysdeps/unix/sysv/linux/tile/*: ... here. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/*: Move to ... * sysdeps/unix/sysv/linux/tile/tilegx32/*: ... here. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/*: Move to ... * sysdeps/unix/sysv/linux/tile/tilegx64/*: ... here.
111 lines
4.3 KiB
C
111 lines
4.3 KiB
C
/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _ATOMIC_MACHINE_H
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#define _ATOMIC_MACHINE_H 1
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#include <stdint.h>
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#include <features.h>
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#include <arch/spr_def.h>
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typedef int32_t atomic32_t;
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typedef uint32_t uatomic32_t;
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typedef int_fast32_t atomic_fast32_t;
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typedef uint_fast32_t uatomic_fast32_t;
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typedef int64_t atomic64_t;
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typedef uint64_t uatomic64_t;
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typedef int_fast64_t atomic_fast64_t;
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typedef uint_fast64_t uatomic_fast64_t;
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typedef intptr_t atomicptr_t;
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typedef uintptr_t uatomicptr_t;
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typedef intmax_t atomic_max_t;
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typedef uintmax_t uatomic_max_t;
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#ifdef _LP64
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# define __HAVE_64B_ATOMICS 1
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#else
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/* tilegx32 does have 64-bit atomics, but assumptions in the semaphore
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code mean that unaligned 64-bit atomics will be used if this symbol
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is true, and unaligned atomics are not supported on tile. */
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# define __HAVE_64B_ATOMICS 0
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#endif
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#define USE_ATOMIC_COMPILER_BUILTINS 0
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#define ATOMIC_EXCHANGE_USES_CAS 0
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/* Pick appropriate 8- or 4-byte instruction. */
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#define __atomic_update(mem, v, op) \
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((__typeof (*(mem))) (__typeof (*(mem) - *(mem))) \
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((sizeof (*(mem)) == 8) ? \
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__insn_##op ((void *) (mem), (int64_t) (__typeof((v) - (v))) (v)) : \
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(sizeof (*(mem)) == 4) ? \
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__insn_##op##4 ((void *) (mem), (int32_t) (__typeof ((v) - (v))) (v)) : \
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__atomic_error_bad_argument_size()))
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#define atomic_compare_and_exchange_val_acq(mem, n, o) \
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({ __insn_mtspr (SPR_CMPEXCH_VALUE, (int64_t) (__typeof ((o) - (o))) (o)); \
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__atomic_update (mem, n, cmpexch); })
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#define atomic_exchange_acq(mem, newvalue) \
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__atomic_update (mem, newvalue, exch)
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#define atomic_exchange_and_add(mem, value) \
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__atomic_update (mem, value, fetchadd)
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#define atomic_and_val(mem, mask) \
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__atomic_update (mem, mask, fetchand)
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#define atomic_or_val(mem, mask) \
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__atomic_update (mem, mask, fetchor)
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#define atomic_decrement_if_positive(mem) \
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__atomic_update (mem, -1, fetchaddgez)
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/* Barrier macro. */
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#define atomic_full_barrier() __sync_synchronize()
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/* APIs with "release" semantics. */
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#define atomic_compare_and_exchange_val_rel(mem, n, o) \
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({ \
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atomic_full_barrier (); \
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atomic_compare_and_exchange_val_acq ((mem), (n), (o)); \
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})
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#define atomic_exchange_rel(mem, n) \
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({ \
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atomic_full_barrier (); \
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atomic_exchange_acq ((mem), (n)); \
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})
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/* Various macros that should just be synonyms. */
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#define catomic_exchange_and_add atomic_exchange_and_add
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#define atomic_and(mem, mask) ((void) atomic_and_val ((mem), (mask)))
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#define catomic_and atomic_and
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#define atomic_or(mem, mask) ((void) atomic_or_val ((mem), (mask)))
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#define catomic_or atomic_or
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/* atomic_bit_test_set in terms of atomic_or_val. */
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#define atomic_bit_test_set(mem, bit) \
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({ __typeof (*(mem)) __att0_mask = ((__typeof (*(mem))) 1 << (bit)); \
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atomic_or_val ((mem), __att0_mask) & __att0_mask; })
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/*
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* This non-existent symbol is called for unsupporrted sizes,
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* indicating a bug in the caller.
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*/
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extern int __atomic_error_bad_argument_size(void)
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__attribute__ ((warning ("bad sizeof atomic argument")));
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#endif /* _ATOMIC_MACHINE_H */
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