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authorRoland McGrath <roland@gnu.org>2005-07-03 04:40:34 +0000
committerRoland McGrath <roland@gnu.org>2005-07-03 04:40:34 +0000
commit88e3fbcb5d6829f8980d6bb356b1c0cd7a38187b (patch)
tree41b73f55c91439f87d82e5d32b9d8e46e82ce3c1 /linuxthreads/sysdeps/x86_64
parentd19b1b4f2ff49e085b55e8564b52ca17b028e335 (diff)
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linuxthreads, linuxthreads_db: Directories removed (preserved in ports repository).
Diffstat (limited to 'linuxthreads/sysdeps/x86_64')
-rw-r--r--linuxthreads/sysdeps/x86_64/Makefile3
-rw-r--r--linuxthreads/sysdeps/x86_64/Versions5
-rw-r--r--linuxthreads/sysdeps/x86_64/pspinlock.c97
-rw-r--r--linuxthreads/sysdeps/x86_64/pt-machine.h225
-rw-r--r--linuxthreads/sysdeps/x86_64/tcb-offsets.sym4
-rw-r--r--linuxthreads/sysdeps/x86_64/tls.h134
6 files changed, 0 insertions, 468 deletions
diff --git a/linuxthreads/sysdeps/x86_64/Makefile b/linuxthreads/sysdeps/x86_64/Makefile
deleted file mode 100644
index 81bddf688c..0000000000
--- a/linuxthreads/sysdeps/x86_64/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-ifeq ($(subdir),csu)
-gen-as-const-headers += tcb-offsets.sym
-endif
diff --git a/linuxthreads/sysdeps/x86_64/Versions b/linuxthreads/sysdeps/x86_64/Versions
deleted file mode 100644
index 32da57080d..0000000000
--- a/linuxthreads/sysdeps/x86_64/Versions
+++ /dev/null
@@ -1,5 +0,0 @@
-libpthread {
-  GLIBC_PRIVATE {
-    __pthread_clock_gettime; __pthread_clock_settime;
-  }
-}
diff --git a/linuxthreads/sysdeps/x86_64/pspinlock.c b/linuxthreads/sysdeps/x86_64/pspinlock.c
deleted file mode 100644
index e1b2a66841..0000000000
--- a/linuxthreads/sysdeps/x86_64/pspinlock.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* POSIX spinlock implementation.  x86-64 version.
-   Copyright (C) 2001 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-/* This implementation is similar to the one used in the Linux kernel.
-   But the kernel is byte instructions for the memory access.  This is
-   faster but unusable here.  The problem is that only 128
-   threads/processes could use the spinlock at the same time.  If (by
-   a design error in the program) a thread/process would hold the
-   spinlock for a time long enough to accumulate 128 waiting
-   processes, the next one will find a positive value in the spinlock
-   and assume it is unlocked.  We cannot accept that.  */
-
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
-  asm volatile
-    ("\n"
-     "1:\n\t"
-     "lock; decl %0\n\t"
-     "js 2f\n\t"
-     ".section .text.spinlock,\"ax\"\n"
-     "2:\n\t"
-     "cmpl $0,%0\n\t"
-     "rep; nop\n\t"
-     "jle 2b\n\t"
-     "jmp 1b\n\t"
-     ".previous"
-     : "=m" (*lock));
-  return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
-  int oldval;
-
-  asm volatile
-    ("xchgl %0,%1"
-     : "=r" (oldval), "=m" (*lock)
-     : "0" (0));
-  return oldval > 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
-  asm volatile
-    ("movl $1,%0"
-     : "=m" (*lock));
-  return 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
-  /* We can ignore the `pshared' parameter.  Since we are busy-waiting
-     all processes which can access the memory location `lock' points
-     to can use the spinlock.  */
-  *lock = 1;
-  return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
-  /* Nothing to do.  */
-  return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
diff --git a/linuxthreads/sysdeps/x86_64/pt-machine.h b/linuxthreads/sysdeps/x86_64/pt-machine.h
deleted file mode 100644
index df187a7c03..0000000000
--- a/linuxthreads/sysdeps/x86_64/pt-machine.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
-   x86-64 version.
-   Copyright (C) 2001, 2002, 2003, 2004 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, 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 __ASSEMBLER__
-# include <stddef.h>	/* For offsetof.  */
-# include <stdlib.h>	/* For abort().  */
-# include <asm/prctl.h>
-
-
-# ifndef PT_EI
-#  define PT_EI extern inline __attribute__ ((always_inline))
-# endif
-
-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  stack_pointer
-register char * stack_pointer __asm__ ("%rsp") __attribute_used__;
-
-
-/* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
-{
-  long int ret;
-
-  __asm__ __volatile__ (
-	"xchgl %k0, %1"
-	: "=r"(ret), "=m"(*spinlock)
-	: "0"(1), "m"(*spinlock)
-	: "memory");
-
-  return ret;
-}
-
-
-/* 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)
-{
-  char ret;
-  long int readval;
-
-  __asm__ __volatile__ ("lock; cmpxchgq %3, %1; sete %0"
-			: "=q" (ret), "=m" (*p), "=a" (readval)
-			: "r" (newval), "m" (*p), "a" (oldval)
-			: "memory");
-  return ret;
-}
-
-/* Return the thread descriptor for the current thread.
-
-   The contained asm must *not* be marked volatile since otherwise
-   assignments like
-	pthread_descr self = thread_self();
-   do not get optimized away.  */
-# define THREAD_SELF \
-({									      \
-  register pthread_descr __self;					      \
-  __asm__ ("movq %%fs:%c1,%0" : "=r" (__self)				      \
-	   : "i" (offsetof (struct _pthread_descr_struct,		      \
-			    p_header.data.self)));			      \
-  __self;								      \
-})
-
-/* Prototype for the system call.  */
-extern int __arch_prctl (int __code, unsigned long __addr);
-
-/* Initialize the thread-unique value.  */
-# define INIT_THREAD_SELF(descr, nr) \
-{									      \
-  if (__arch_prctl (ARCH_SET_FS, (unsigned long)descr) != 0)		      \
-    abort ();								      \
-}
-
-/* Read member of the thread descriptor directly.  */
-# define THREAD_GETMEM(descr, member) \
-({									      \
-  __typeof__ (descr->member) __value;					      \
-  if (sizeof (__value) == 1)						      \
-    __asm__ __volatile__ ("movb %%fs:%P2,%b0"				      \
-			  : "=q" (__value)				      \
-			  : "0" (0),					      \
-			    "i" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else if (sizeof (__value) == 4)					      \
-    __asm__ __volatile__ ("movl %%fs:%P2,%k0"				      \
-			  : "=r" (__value)				      \
-			  : "0" (0),					      \
-			    "i" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else									      \
-    {									      \
-      if (sizeof (__value) != 8)					      \
-	/* There should not be any value with a size other than 1, 4 or 8.  */\
-	abort ();							      \
-									      \
-      __asm__ __volatile__ ("movq %%fs:%P1,%0"				      \
-			    : "=r" (__value)				      \
-			    : "i" (offsetof (struct _pthread_descr_struct,    \
-					     member)));			      \
-    }									      \
-  __value;								      \
-})
-
-/* Same as THREAD_GETMEM, but the member offset can be non-constant.  */
-# define THREAD_GETMEM_NC(descr, member) \
-({									      \
-  __typeof__ (descr->member) __value;					      \
-  if (sizeof (__value) == 1)						      \
-    __asm__ __volatile__ ("movb %%fs:(%2),%b0"				      \
-			  : "=q" (__value)				      \
-			  : "0" (0),					      \
-			    "r" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else if (sizeof (__value) == 4)					      \
-    __asm__ __volatile__ ("movl %%fs:(%2),%k0"				      \
-			  : "=r" (__value)				      \
-			  : "0" (0),					      \
-			    "r" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else									      \
-    {									      \
-      if (sizeof (__value) != 8)					      \
-	/* There should not be any value with a size other than 1, 4 or 8.  */\
-	abort ();							      \
-									      \
-      __asm__ __volatile__ ("movq %%fs:(%1),%0"				      \
-			    : "=r" (__value)				      \
-			    : "r" (offsetof (struct _pthread_descr_struct,    \
-					     member)));			      \
-    }									      \
-  __value;								      \
-})
-
-/* Set member of the thread descriptor directly.  */
-# define THREAD_SETMEM(descr, member, value) \
-({									      \
-  __typeof__ (descr->member) __value = (value);				      \
-  if (sizeof (__value) == 1)						      \
-    __asm__ __volatile__ ("movb %0,%%fs:%P1" :				      \
-			  : "q" (__value),				      \
-			    "i" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else if (sizeof (__value) == 4)					      \
-    __asm__ __volatile__ ("movl %k0,%%fs:%P1" :				      \
-			  : "r" (__value),				      \
-			    "i" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else									      \
-    {									      \
-      if (sizeof (__value) != 8)					      \
-	/* There should not be any value with a size other than 1, 4 or 8.  */\
-	abort ();							      \
-									      \
-      __asm__ __volatile__ ("movq %0,%%fs:%P1" :			      \
-			    : "r" (__value),				      \
-			      "i" (offsetof (struct _pthread_descr_struct,    \
-					     member)));			      \
-    }									      \
-})
-
-/* Same as THREAD_SETMEM, but the member offset can be non-constant.  */
-# define THREAD_SETMEM_NC(descr, member, value) \
-({									      \
-  __typeof__ (descr->member) __value = (value);				      \
-  if (sizeof (__value) == 1)						      \
-    __asm__ __volatile__ ("movb %0,%%fs:(%1)" :				      \
-			  : "q" (__value),				      \
-			    "r" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else if (sizeof (__value) == 4)					      \
-    __asm__ __volatile__ ("movl %k0,%%fs:(%1)" :			      \
-			  : "r" (__value),				      \
-			    "r" (offsetof (struct _pthread_descr_struct,      \
-					   member)));			      \
-  else									      \
-    {									      \
-      if (sizeof (__value) != 8)					      \
-	/* There should not be any value with a size other than 1, 4 or 8.  */\
-	abort ();							      \
-									      \
-      __asm__ __volatile__ ("movq %0,%%fs:(%1)"	:			      \
-			    : "r" (__value),				      \
-			      "r" (offsetof (struct _pthread_descr_struct,    \
-					     member)));			      \
-    }									      \
-})
-
-#endif /* !__ASSEMBLER__ */
-
-/* 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
-
-/* The ia32e really want some help to prevent overheating.  */
-#define BUSY_WAIT_NOP	__asm__ ("rep; nop")
-
-#endif /* pt-machine.h */
diff --git a/linuxthreads/sysdeps/x86_64/tcb-offsets.sym b/linuxthreads/sysdeps/x86_64/tcb-offsets.sym
deleted file mode 100644
index aee6be2570..0000000000
--- a/linuxthreads/sysdeps/x86_64/tcb-offsets.sym
+++ /dev/null
@@ -1,4 +0,0 @@
-#include <sysdep.h>
-#include <tls.h>
-
-MULTIPLE_THREADS_OFFSET		offsetof (tcbhead_t, multiple_threads)
diff --git a/linuxthreads/sysdeps/x86_64/tls.h b/linuxthreads/sysdeps/x86_64/tls.h
deleted file mode 100644
index d67275c10c..0000000000
--- a/linuxthreads/sysdeps/x86_64/tls.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Definitions for thread-local data handling.  linuxthreads/x86-64 version.
-   Copyright (C) 2002, 2005 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _TLS_H
-#define _TLS_H
-
-#ifndef __ASSEMBLER__
-
-# include <pt-machine.h>
-# include <stdbool.h>
-# include <stddef.h>
-
-/* Type for the dtv.  */
-typedef union dtv
-{
-  size_t counter;
-  struct
-  {
-    void *val;
-    bool is_static;
-  } pointer;
-} dtv_t;
-
-
-typedef struct
-{
-  void *tcb;		/* Pointer to the TCB.  Not necessary the
-			   thread descriptor used by libpthread.  */
-  dtv_t *dtv;
-  void *self;		/* Pointer to the thread descriptor.  */
-  int multiple_threads;
-} tcbhead_t;
-
-#else /* __ASSEMBLER__ */
-# include <tcb-offsets.h>
-#endif
-
-
-#ifdef HAVE_TLS_SUPPORT
-
-/* Signal that TLS support is available.  */
-# define USE_TLS	1
-
-# ifndef __ASSEMBLER__
-/* Get system call information.  */
-#  include <sysdep.h>
-
-/* Get the thread descriptor definition.  */
-#  include <linuxthreads/descr.h>
-
-/* This is the size of the initial TCB.  */
-#  define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
-
-/* Alignment requirements for the initial TCB.  */
-#  define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
-
-/* This is the size of the TCB.  */
-#  define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct)
-
-/* Alignment requirements for the TCB.  */
-#  define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
-
-/* The TCB can have any size and the memory following the address the
-   thread pointer points to is unspecified.  Allocate the TCB there.  */
-#  define TLS_TCB_AT_TP	1
-
-
-/* Install the dtv pointer.  The pointer passed is to the element with
-   index -1 which contain the length.  */
-#  define INSTALL_DTV(descr, dtvp) \
-  ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
-
-/* Install new dtv for current thread.  */
-#  define INSTALL_NEW_DTV(dtv) \
-  ({ struct _pthread_descr_struct *__descr;				      \
-     THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); })
-
-/* Return dtv of given thread descriptor.  */
-#  define GET_DTV(descr) \
-  (((tcbhead_t *) (descr))->dtv)
-
-/* Code to initially initialize the thread pointer.  This might need
-   special attention since 'errno' is not yet available and if the
-   operation can cause a failure 'errno' must not be touched.  */
-# define TLS_INIT_TP(descr, secondcall)					      \
-  ({									      \
-    void *_descr = (descr);						      \
-    tcbhead_t *head = _descr;						      \
-    long int _result;							      \
-									      \
-    head->tcb = _descr;							      \
-    /* For now the thread descriptor is at the same address.  */	      \
-    head->self = _descr;						      \
-									      \
-    asm volatile ("syscall"						      \
-		  : "=a" (_result)					      \
-		  : "0" ((unsigned long int) __NR_arch_prctl),		      \
-		    "D" ((unsigned long int) ARCH_SET_FS),		      \
-		    "S" (_descr)					      \
-		  : "memory", "cc", "r11", "cx");			      \
-									      \
-    _result ? "cannot set %fs base address for thread-local storage" : 0;     \
-  })
-
-/* Indicate that dynamic linker shouldn't try to initialize TLS even
-   when no PT_TLS segments are found in the program and libraries
-   it is linked against.  */
-#  define TLS_INIT_TP_EXPENSIVE 1
-
-/* Return the address of the dtv for the current thread.  */
-#  define THREAD_DTV() \
-  ({ struct _pthread_descr_struct *__descr;				      \
-     THREAD_GETMEM (__descr, p_header.data.dtvp); })
-
-# endif	/* HAVE_TLS_SUPPORT */
-#endif /* __ASSEMBLER__ */
-
-#endif	/* tls.h */