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authorEric Andersen <andersen@codepoet.org>2006-08-21 23:29:36 +0000
committerEric Andersen <andersen@codepoet.org>2006-08-21 23:29:36 +0000
commit4beed843c11a1f3079c775e501dbe1069e4c7bbe (patch)
tree104921f9419e00744b3e787a09c48505bf3b4d83 /libc/sysdeps/linux/alpha/bits/atomicity.h
parent82911dd00068e8978d0da4b44dd0fc4b833b8c72 (diff)
bits/profil-counter.h and bits/atomicity.h are leftovers from the old gprof
based profiling I nuked ages ago since tools like oprofile are non invasive and work so much better.
Diffstat (limited to 'libc/sysdeps/linux/alpha/bits/atomicity.h')
-rw-r--r--libc/sysdeps/linux/alpha/bits/atomicity.h102
1 files changed, 0 insertions, 102 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/atomicity.h b/libc/sysdeps/linux/alpha/bits/atomicity.h
deleted file mode 100644
index df6e01a1e..000000000
--- a/libc/sysdeps/linux/alpha/bits/atomicity.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* Low-level functions for atomic operations. Alpha version.
- Copyright (C) 1999 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H 1
-
-#include <inttypes.h>
-
-
-static inline int
-__attribute_used__
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- register int result, tmp;
-
- __asm__ __volatile__ (
- "/* Inline exchange & add */\n"
- "1:\t"
- "ldl_l %0,%3\n\t"
- "addl %0,%4,%1\n\t"
- "stl_c %1,%2\n\t"
- "beq %1,2f\n"
- ".subsection 1\n"
- "2:\t"
- "br 1b\n"
- ".previous\n\t"
- "mb\n\t"
- "/* End exchange & add */"
- : "=&r"(result), "=&r"(tmp), "=m"(*mem)
- : "m" (*mem), "r"(val));
-
- return result;
-}
-
-static inline void
-__attribute_used__
-atomic_add (volatile uint32_t *mem, int val)
-{
- register int result;
-
- __asm__ __volatile__ (
- "/* Inline exchange & add */\n"
- "1:\t"
- "ldl_l %0,%2\n\t"
- "addl %0,%3,%0\n\t"
- "stl_c %0,%1\n\t"
- "beq %0,2f\n\t"
- ".subsection 1\n"
- "2:\t"
- "br 1b\n"
- ".previous\n\t"
- "mb\n\t"
- "/* End exchange & add */"
- : "=&r"(result), "=m"(*mem)
- : "m" (*mem), "r"(val));
-}
-
-static inline long
-__attribute_used__
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- long int ret;
-
- __asm__ __volatile__ (
- "/* Inline compare & swap */\n"
- "1:\t"
- "ldq_l %0,%4\n\t"
- "cmpeq %0,%2,%0\n\t"
- "beq %0,3f\n\t"
- "mov %3,%0\n\t"
- "stq_c %0,%1\n\t"
- "beq %0,2f\n\t"
- ".subsection 1\n"
- "2:\t"
- "br 1b\n"
- ".previous\n\t"
- "3:\t"
- "mb\n\t"
- "/* End compare & swap */"
- : "=&r"(ret), "=m"(*p)
- : "r"(oldval), "r"(newval), "m"(*p));
-
- return ret;
-}
-
-#endif /* atomicity.h */