summaryrefslogtreecommitdiff
path: root/libpthread/linuxthreads.old/sysdeps/xtensa
diff options
context:
space:
mode:
authorWaldemar Brodkorb <wbx@uclibc-ng.org>2016-05-18 18:41:24 +0200
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-05-18 18:41:24 +0200
commit6a8ccc95528f5e86a8770ed15ce89609b5b3dee9 (patch)
treebbd4df35b4d4a6a8b00d7a5e61fb2668b850ad62 /libpthread/linuxthreads.old/sysdeps/xtensa
parent398a27a5b323956344b4f831d892fed3bd9813c7 (diff)
remove linuxthreads.new, rename linuxthreads.old
Linuxthreads.new isn't really useful with the existence of NPTL/TLS for well supported architectures. There is no reason to use LT.new for ARM/MIPS or other architectures supporting NPTL/TLS. It is not available for noMMU architectures like Blackfin or FR-V. To simplify the live of the few uClibc-ng developers, LT.new is removed and LT.old is renamed to LT. LINUXTHREADS_OLD -> UCLIBC_HAS_LINUXTHREADS
Diffstat (limited to 'libpthread/linuxthreads.old/sysdeps/xtensa')
-rw-r--r--libpthread/linuxthreads.old/sysdeps/xtensa/pt-machine.h79
1 files changed, 0 insertions, 79 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/xtensa/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/xtensa/pt-machine.h
deleted file mode 100644
index 2c68ddfb5..000000000
--- a/libpthread/linuxthreads.old/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 */