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authorWaldemar Brodkorb <wbx@openadk.org>2015-02-14 23:04:02 -0600
committerWaldemar Brodkorb <wbx@openadk.org>2015-02-14 23:04:02 -0600
commite1e46622ac0fce73d802fa4a8a2e83cc25cd9e7a (patch)
tree2c8d14e4dcc733f4227f0984ed05da5826b13acd /libpthread/linuxthreads/sysdeps/xtensa
parent6b6ede3d15f04fe825cfa9f697507457e3640344 (diff)
Revert "resolve merge"
This reverts commit 6b6ede3d15f04fe825cfa9f697507457e3640344.
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/xtensa')
-rw-r--r--libpthread/linuxthreads/sysdeps/xtensa/pt-machine.h79
1 files changed, 0 insertions, 79 deletions
diff --git a/libpthread/linuxthreads/sysdeps/xtensa/pt-machine.h b/libpthread/linuxthreads/sysdeps/xtensa/pt-machine.h
deleted file mode 100644
index 2c68ddfb5..000000000
--- a/libpthread/linuxthreads/sysdeps/xtensa/pt-machine.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- Xtensa version.
-
- Copyright (C) 2007 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, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#include <sys/syscall.h>
-#include <asm/unistd.h>
-
-#ifndef PT_EI
-# define PT_EI extern inline __attribute__ ((gnu_inline))
-#endif
-
-#define MEMORY_BARRIER() __asm__ ("memw" : : : "memory")
-#define HAS_COMPARE_AND_SWAP
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- unsigned long tmp;
- __asm__ volatile (
-" movi %0, 0 \n"
-" wsr %0, SCOMPARE1 \n"
-" movi %0, 1 \n"
-" s32c1i %0, %1, 0 \n"
- : "=&a" (tmp)
- : "a" (spinlock)
- : "memory"
- );
- return tmp;
-}
-
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
- unsigned long tmp;
- unsigned long value;
- __asm__ volatile (
-"1: l32i %0, %2, 0 \n"
-" bne %0, %4, 2f \n"
-" wsr %0, SCOMPARE1 \n"
-" mov %1, %0 \n"
-" mov %0, %3 \n"
-" s32c1i %0, %2, 0 \n"
-" bne %1, %0, 1b \n"
-"2: \n"
- : "=&a" (tmp), "=&a" (value)
- : "a" (p), "a" (newval), "a" (oldval)
- : "memory" );
-
- return tmp == oldval;
-}
-
-/* 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)
-
-#endif /* _PT_MACHINE_H */