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This directory was added to src/contrib/bind9 prior to the svn move so

Browse Source 
that BIND 9.4.1 could compile and run on the ARM platform, but is not
part of the vendor source.  It will remain in src/contrib/bind9 since
it is a local modification.
This commit is contained in:
Doug Barton 2008-12-23 18:30:32 +00:00
parent 6c36d03dd0
commit b24bc820c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/bind9/dist/; revision=186446
1 changed files with 0 additions and 81 deletions
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81
lib/isc/arm/include/isc/atomic.h
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@ -1,81 +0,0 @@
/*-
* Copyright (c) 2007 Warner Losh
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef ISC_ATOMIC_H
#define ISC_ATOMIC_H 1
#include <isc/platform.h>
#include <isc/types.h>
#include <machine/atomic.h>
#ifdef __FreeBSD__
static inline isc_int32_t
isc_atomic_xadd(isc_int32_t *p, isc_int32_t val)
{
return atomic_fetchadd_int(p, val);
}
static inline void
isc_atomic_store(isc_int32_t *p, isc_int32_t val)
{
atomic_store_rel_int(p, val);
}
static inline isc_int32_t
isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val)
{
register int done, ras_start;
__asm __volatile("1:\n"
"adr %1, 1b\n"
"mov %0, #0xe0000004\n"
"str %1, [%0]\n"
"mov %0, #0xe0000008\n"
"adr %1, 2f\n"
"str %1, [%0]\n"
"ldr %1, [%2]\n"
"cmp %1, %3\n"
"streq %4, [%2]\n"
"2:\n"
"mov %3, #0\n"
"mov %0, #0xe0000004\n"
"str %3, [%0]\n"
"mov %3, #0xffffffff\n"
"mov %0, #0xe0000008\n"
"str %3, [%0]\n"
: "=r" (ras_start), "=r" (done)
,"+r" (p), "+r" (cmpval), "+r" (val) : : "memory");
return (done);
}
#else /* !FreeBSD */
#error "unsupported compiler. disable atomic ops by --disable-atomic"
#endif
#endif /* ISC_ATOMIC_H */