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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/alpha/pt-machine.h
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/alpha/pt-machine.h')
-rw-r--r--libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h126
1 files changed, 0 insertions, 126 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h
deleted file mode 100644
index b47343ba7..000000000
--- a/libpthread/linuxthreads.old/sysdeps/alpha/pt-machine.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- Alpha version.
- Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003
- 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,
- see <http://www.gnu.org/licenses/>. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#include <features.h>
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-#ifdef __linux__
-# include <asm/pal.h>
-#else
-# include <machine/pal.h>
-#endif
-
-/* 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 stack_pointer
-register char *stack_pointer __asm__("$30");
-
-
-/* Memory barrier; default is to do nothing */
-#define MEMORY_BARRIER() __asm__ __volatile__("mb" : : : "memory")
-/* Write barrier. */
-#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("wmb" : : : "memory")
-
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- long int ret, temp;
-
- __asm__ __volatile__(
- "/* Inline spinlock test & set */\n"
- "1:\t"
- "ldl_l %0,%3\n\t"
- "bne %0,2f\n\t"
- "or $31,1,%1\n\t"
- "stl_c %1,%2\n\t"
- "beq %1,1b\n"
- "2:\tmb\n"
- "/* End spinlock test & set */"
- : "=&r"(ret), "=&r"(temp), "=m"(*spinlock)
- : "m"(*spinlock)
- : "memory");
-
- return ret;
-}
-
-
-/* Begin allocating thread stacks at this address. Default is to allocate
- them just below the initial program stack. */
-#define THREAD_STACK_START_ADDRESS 0x40000000000
-
-
-/* Return the thread descriptor for the current thread. */
-#define THREAD_SELF \
-({ \
- register pthread_descr __self __asm__("$0"); \
- __asm__ ("call_pal %1" : "=r"(__self) : "i"(PAL_rduniq)); \
- __self; \
-})
-
-/* Initialize the thread-unique value. */
-#define INIT_THREAD_SELF(descr, nr) \
-{ \
- register pthread_descr __self __asm__("$16") = (descr); \
- __asm__ __volatile__ ("call_pal %1" : : "r"(__self), "i"(PAL_wruniq)); \
-}
-
-
-/* Compare-and-swap for semaphores. */
-
-#define HAS_COMPARE_AND_SWAP
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
- long int ret;
-
- __asm__ __volatile__ (
- "/* Inline compare & swap */\n"
- "1:\t"
- "ldq_l %0,%4\n\t"
- "cmpeq %0,%2,%0\n\t"
- "beq %0,2f\n\t"
- "mov %3,%0\n\t"
- "stq_c %0,%1\n\t"
- "beq %0,1b\n\t"
- "2:\tmb\n"
- "/* End compare & swap */"
- : "=&r"(ret), "=m"(*p)
- : "r"(oldval), "r"(newval), "m"(*p)
- : "memory");
-
- return ret;
-}
-
-/* We want the OS to assign stack addresses. */
-#define FLOATING_STACKS 1
-
-/* Maximum size of the stack if the rlimit is unlimited. */
-#define ARCH_STACK_MAX_SIZE 32*1024*1024
-
-#endif /* pt-machine.h */