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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/arm/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/arm/bits/atomicity.h')
-rw-r--r--libc/sysdeps/linux/arm/bits/atomicity.h120
1 files changed, 0 insertions, 120 deletions
diff --git a/libc/sysdeps/linux/arm/bits/atomicity.h b/libc/sysdeps/linux/arm/bits/atomicity.h
deleted file mode 100644
index 97d278610..000000000
--- a/libc/sysdeps/linux/arm/bits/atomicity.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* Low-level functions for atomic operations. ARM version.
- Copyright (C) 1997, 1998, 1999, 2000 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)
-{
- int tmp1;
- int tmp2;
- int result;
- __asm__ ("\n"
-#if defined(__thumb__)
- "\t.align 0\n"
- "\tbx pc\n"
- "\tnop\n"
- "\t.arm\n"
-#endif
- "0:\tldr\t%0,[%3]\n\t"
- "add\t%1,%0,%4\n\t"
- "swp\t%2,%1,[%3]\n\t"
- "cmp\t%0,%2\n\t"
- "swpne\t%1,%2,[%3]\n\t"
- "bne\t0b"
-#if defined(__thumb__)
- "\torr %1, pc, #1\n"
- "\tbx %1\n"
- "\t.force_thumb"
-#endif
- : "=&r" (result), "=&r" (tmp1), "=&r" (tmp2)
- : "r" (mem), "r"(val)
- : "cc", "memory");
- return result;
-}
-
-static inline void
-__attribute_used__
-atomic_add (volatile uint32_t *mem, int val)
-{
- int tmp1;
- int tmp2;
- int tmp3;
- __asm__ ("\n"
-#if defined(__thumb__)
- "\t.align 0\n"
- "\tbx pc\n"
- "\tnop\n"
- "\t.arm\n"
-#endif
- "0:\tldr\t%0,[%3]\n\t"
- "add\t%1,%0,%4\n\t"
- "swp\t%2,%1,[%3]\n\t"
- "cmp\t%0,%2\n\t"
- "swpne\t%1,%2,[%3]\n\t"
- "bne\t0b"
-#if defined(__thumb__)
- "\torr %1, pc, #1\n"
- "\tbx %1\n"
- "\t.force_thumb"
-#endif
- : "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3)
- : "r" (mem), "r"(val)
- : "cc", "memory");
-}
-
-static inline int
-__attribute_used__
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- int result, tmp;
- __asm__ ("\n"
-#if defined(__thumb__)
- "\t.align 0\n"
- "\tbx pc\n"
- "\tnop\n"
- "\t.arm\n"
-#endif
- "0:\tldr\t%1,[%2]\n\t"
- "mov\t%0,#0\n\t"
- "cmp\t%1,%4\n\t"
- "bne\t1f\n\t"
- "swp\t%0,%3,[%2]\n\t"
- "cmp\t%1,%0\n\t"
- "swpne\t%1,%0,[%2]\n\t"
- "bne\t0b\n\t"
- "mov\t%0,#1\n"
- "1:"
-#if defined(__thumb__)
- "\torr %1, pc, #1\n"
- "\tbx %1\n"
- "\t.force_thumb"
-#endif
- : "=&r" (result), "=&r" (tmp)
- : "r" (p), "r" (newval), "r" (oldval)
- : "cc", "memory");
- return result;
-}
-
-#endif /* atomicity.h */