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authorEric Andersen <andersen@codepoet.org>2003-03-03 20:58:42 +0000
committerEric Andersen <andersen@codepoet.org>2003-03-03 20:58:42 +0000
commit67eff66438688fddebe41f77fd252a3b2b135271 (patch)
tree18dbee3e9afe50d27095140198e2aa34df1de061 /libpthread/linuxthreads/sysdeps/i386/i686
parent2229d0fa131387b9b8ad16ac88347350a080aeb5 (diff)
Initial effort at adding profiling support.
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/i386/i686')
-rw-r--r--libpthread/linuxthreads/sysdeps/i386/i686/pt-machine.h79
1 files changed, 0 insertions, 79 deletions
diff --git a/libpthread/linuxthreads/sysdeps/i386/i686/pt-machine.h b/libpthread/linuxthreads/sysdeps/i386/i686/pt-machine.h
deleted file mode 100644
index 3596224c1..000000000
--- a/libpthread/linuxthreads/sysdeps/i386/i686/pt-machine.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- i686 version.
- Copyright (C) 1996-2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Richard Henderson <rth@tamu.edu>.
-
- 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; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#ifndef PT_EI
-# define PT_EI extern inline
-#endif
-#include "kernel-features.h"
-
-#ifndef ASSEMBLER
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* Get some notion of the current stack. Need not be exactly the top
- of the stack, just something somewhere in the current frame. */
-#define CURRENT_STACK_FRAME __builtin_frame_address (0)
-
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- long int ret;
-
- __asm__ __volatile__ (
- "xchgl %0, %1"
- : "=r" (ret), "=m" (*spinlock)
- : "0" (1), "m" (*spinlock)
- : "memory");
-
- return ret;
-}
-
-
-/* Compare-and-swap for semaphores. It's always available on i686. */
-#define HAS_COMPARE_AND_SWAP
-
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
- char ret;
- long int readval;
-
- __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
- : "=q" (ret), "=m" (*p), "=a" (readval)
- : "r" (newval), "m" (*p), "a" (oldval)
- : "memory");
- return ret;
-}
-#endif
-
-#if __ASSUME_LDT_WORKS > 0
-#include "../useldt.h"
-#endif
-
-/* The P4 and above really want some help to prevent overheating. */
-#define BUSY_WAIT_NOP __asm__ ("rep; nop")
-
-#endif /* pt-machine.h */