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--- Libc/Libc-262/pthreads/lock.s
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991
- * All Rights Reserved
- *
- * Permission to use, copy, modify, and distribute this software and
- * its documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appears in all copies and
- * that both the copyright notice and this permission notice appear in
- * supporting documentation.
- *
- * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
- * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-/*
- * MkLinux
- */
-
-#if defined(__ppc__)
-
-#import <architecture/ppc/asm_help.h>
-#import <architecture/ppc/pseudo_inst.h>
-
-/* void spin_lock(int *p);
- *
- * Lock the lock pointed to by `p'. Spin (possibly forever) until
- * the lock is available. Test and test and set logic used.
- */
-
-.text
-
-LEAF(__spin_lock_try)
-1:
- lwarx r5,0,r3 // Read the lock
- addi r4,0,0x1 // Lock value
- cmpwi r5,0x0 // Is it busy?
- bne- 2f // Yes, return 0
- stwcx. r4,0,r3 // Try to lock the lock
- bne- 1b // Lost reservation, try again
- addi r3,0,1 // Got the lock
- isync // Sync instruction stream
- blr // Return 1
-2: addi r3,0,0 // Could not get the lock
- blr // Return 0
-END(__spin_lock_try)
-
-.globl _spin_lock
-LEAF(__spin_lock)
-_spin_lock:
-1:
- lwarx r5,0,r3 // Read the lock
- addi r4,0,0x1 // Lock value
- cmpwi r5,0x0 // Is it busy?
- bne- 2f // Yes, goto retry logic
- stwcx. r4,0,r3 // Try to lock the lock
- bne- 1b // Lost reservation, try again
- isync // Sync instruction stream
- blr // Return
-2:
- CALL_EXTERN(__spin_lock_retry)
- blr // Return
-END(__spin_lock)
-
-/* void spin_unlock(int *p);
- *
- * Unlock the lock pointed to by p.
- */
-.globl _spin_unlock
-LEAF(__spin_unlock)
-_spin_unlock:
- sync
- li32 r4,0
- stw r4,0(r3)
- blr
-END(__spin_unlock)
-
-#elif defined(__i386__)
-
-#include <architecture/i386/asm_help.h>
-
-/*
- * void
- * _spin_lock(p)
- * int *p;
- *
- * Lock the lock pointed to by p. Spin (possibly forever) until the next
- * lock is available.
- */
- TEXT
-
-.globl _spin_lock_try
-LEAF(__spin_lock_try, 0)
-_spin_lock_try:
- movl 4(%esp),%ecx
- movl $1,%eax
- xchgl (%ecx),%eax
- xorl $1,%eax
-END(__spin_lock_try)
-
-.globl _spin_lock
-LEAF(__spin_lock, 0)
-_spin_lock:
- movl 4(%esp), %ecx
- movl (%ecx), %eax
- orl %eax, %eax
- jnz 1f
- movl $0xFFFFFFFF, %eax
- xchgl %eax, (%ecx)
- orl %eax, %eax
- jz 2f
-1: pushl %ecx
- CALL_EXTERN(__spin_lock_retry)
- addl $4, %esp
-2:
-END(__spin_lock)
-
-
-/*
- * void
- * _spin_unlock(p)
- * int *p;
- *
- * Unlock the lock pointed to by p.
- */
-.globl _spin_unlock
-LEAF(__spin_unlock, 0)
-_spin_unlock:
- movl $0, %eax
- movl 4(%esp), %ecx
- xchgl %eax, (%ecx)
-END(__spin_unlock)
-
-#else
-#error spin_locks not defined for this architecture
-#endif