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- This comparison shows the changes necessary to convert path
/openrisc/trunk/gnu-stable/gcc-4.5.1/libstdc++-v3/config/cpu/sh
- from Rev 816 to Rev 826
- ↔ Reverse comparison
Rev 816 → Rev 826
/atomicity.h
0,0 → 1,103
// Low-level functions for atomic operations: sh version -*- C++ -*- |
|
// Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2009 |
// Free Software Foundation, Inc. |
// |
// This file is part of the GNU ISO C++ Library. This library 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; either version 3, or (at your option) |
// any later version. |
|
// This library 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. |
|
// Under Section 7 of GPL version 3, you are granted additional |
// permissions described in the GCC Runtime Library Exception, version |
// 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 |
// a copy of the GCC Runtime Library Exception along with this program; |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
// <http://www.gnu.org/licenses/>. |
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#ifdef __SH4A__ |
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#include <ext/atomicity.h> |
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_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) |
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typedef int _Atomic_word; |
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_Atomic_word |
__attribute__ ((__unused__)) |
__exchange_and_add (volatile _Atomic_word* __mem, int __val) throw () |
{ |
_Atomic_word __result; |
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__asm__ __volatile__ |
("0:\n" |
"\tmovli.l\t@%2,r0\n" |
"\tmov\tr0,%1\n" |
"\tadd\t%3,r0\n" |
"\tmovco.l\tr0,@%2\n" |
"\tbf\t0b" |
: "+m" (*__mem), "=&r" (__result) |
: "r" (__mem), "rI08" (__val) |
: "r0"); |
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return __result; |
} |
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void |
__attribute__ ((__unused__)) |
__atomic_add (volatile _Atomic_word* __mem, int __val) throw () |
{ |
asm("0:\n" |
"\tmovli.l\t@%1,r0\n" |
"\tadd\t%2,r0\n" |
"\tmovco.l\tr0,@%1\n" |
"\tbf\t0b" |
: "+m" (*__mem) |
: "r" (__mem), "rI08" (__val) |
: "r0"); |
} |
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_GLIBCXX_END_NAMESPACE |
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#else /* !__SH4A__ */ |
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/* This is generic/atomicity.h */ |
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#include <ext/atomicity.h> |
#include <ext/concurrence.h> |
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namespace |
{ |
__gnu_cxx::__mutex atomic_mutex; |
} // anonymous namespace |
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_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) |
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_Atomic_word |
__attribute__ ((__unused__)) |
__exchange_and_add(volatile _Atomic_word* __mem, int __val) throw () |
{ |
__gnu_cxx::__scoped_lock sentry(atomic_mutex); |
_Atomic_word __result; |
__result = *__mem; |
*__mem += __val; |
return __result; |
} |
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void |
__attribute__ ((__unused__)) |
__atomic_add(volatile _Atomic_word* __mem, int __val) throw () |
{ __exchange_and_add(__mem, __val); } |
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_GLIBCXX_END_NAMESPACE |
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#endif /* !__SH4A__ */ |
atomicity.h
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Id
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