linuxthreads: remove unused s390 code

Cleanup linuxthreads by removing unused s390 code.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

5 files changed, 0 insertions, 481 deletions

diff --git a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c b/libpthread/linuxthreads/sysdeps/s390/pspinlock.c
deleted file mode 100644
index be7578642..000000000
--- a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/* POSIX spinlock implementation.  S/390 version.
-   Copyright (C) 2000, 2004 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
-   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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#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__("    basr  1,0\n"
-	       "0:  slr   0,0\n"
-	       "    cs    0,1,%1\n"
-	       "    jl    0b\n"
-	       : "=m" (*lock)
-	       : "m" (*lock) : "0", "1", "cc" );
-  return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
-  int oldval;
-
-  __asm__ __volatile__("    slr   %1,%1\n"
-	       "    basr  1,0\n"
-	       "0:  cs    %1,1,%0"
-	       : "=m" (*lock), "=&d" (oldval)
-	       : "m" (*lock) : "1", "cc" );
-  return oldval == 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
-  __asm__ __volatile__("    xc 0(4,%0),0(%0)\n"
-	       "    bcr 15,0"
-	       : : "a" (lock) : "memory" );
-  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 = 0;
-  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/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h
deleted file mode 100644
index 51505a97d..000000000
--- a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
-   S390 version.
-   Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
-   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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H   1
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* For multiprocessor systems, we want to ensure all memory accesses
-   are completed before we reset a lock.  On other systems, we still
-   need to make sure that the compiler has flushed everything to memory.  */
-#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory")
-
-/* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
-{
-  int ret;
-
-  __asm__ __volatile__(
-       "    la    1,%1\n"
-       "    lhi   0,1\n"
-       "    l     %0,%1\n"
-       "0:  cs    %0,0,0(1)\n"
-       "    jl    0b"
-       : "=&d" (ret), "+m" (*spinlock)
-       : : "0", "1", "cc");
-
-  return ret;
-}
-
-
-/* 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__ ("15");
-
-#ifdef __UCLIBC_HAS_TLS__
-/* Return the thread descriptor for the current thread.  */
-# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ())
-
-/* Initialize the thread-unique value.  */
-#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr)
-#else
-/* Return the thread descriptor for the current thread.
-   S/390 registers uses access register 0 as "thread register".  */
-#define THREAD_SELF  ({                                                       \
-  register pthread_descr __self;                                              \
-  __asm__ ("ear %0,%%a0" : "=d" (__self) );                                   \
-  __self;                                                                     \
-})
-
-/* Initialize the thread-unique value.  */
-#define INIT_THREAD_SELF(descr, nr)  ({                                       \
-  __asm__ ("sar %%a0,%0" : : "d" (descr) );                                   \
-})
-#endif
-
-/* Access to data in the thread descriptor is easy.  */
-#define THREAD_GETMEM(descr, member) \
-  ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
-  ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
-  ((void) sizeof (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
-  ((void) sizeof (descr), THREAD_SELF->member = (value))
-
-/* 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     8*1024*1024
-
-/* 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)
-{
-        int retval;
-
-        __asm__ __volatile__(
-                "  la   1,%1\n"
-                "  lr   0,%2\n"
-                "  cs   0,%3,0(1)\n"
-                "  ipm  %0\n"
-                "  srl  %0,28\n"
-                "0:"
-                : "=&d" (retval), "+m" (*p)
-                : "d" (oldval) , "d" (newval)
-                : "cc", "0", "1" );
-        return retval == 0;
-}
-
-#endif /* pt-machine.h */
diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h
deleted file mode 100644
index 4bff85aec..000000000
--- a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
-   64 bit S/390 version.
-   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
-   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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H   1
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* For multiprocessor systems, we want to ensure all memory accesses
-   are completed before we reset a lock.  On other systems, we still
-   need to make sure that the compiler has flushed everything to memory.  */
-#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory")
-
-/* Spinlock implementation; required.  */
-PT_EI long int
-testandset (int *spinlock)
-{
-  int ret;
-
-  __asm__ __volatile__(
-       "    la    1,%1\n"
-       "    lhi   0,1\n"
-       "    l     %0,%1\n"
-       "0:  cs    %0,0,0(1)\n"
-       "    jl    0b"
-       : "=&d" (ret), "+m" (*spinlock)
-       : : "0", "1", "cc");
-
-  return ret;
-}
-
-
-/* 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__ ("15");
-
-#ifdef __UCLIBC_HAS_TLS__
-/* Return the thread descriptor for the current thread.  */
-# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ())
-
-/* Initialize the thread-unique value.  */
-#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr)
-#else
-/* Return the thread descriptor for the current thread.
-   64 bit S/390 uses access register 0 and 1 as "thread register".  */
-#define THREAD_SELF  ({                                                       \
-  register pthread_descr __self;                                              \
-  __asm__ ("   ear  %0,%%a0\n"                                                \
-           "   sllg %0,%0,32\n"                                               \
-           "   ear  %0,%%a1\n"                                                \
-           : "=d" (__self) );                                                 \
-  __self;                                                                     \
-})
-
-/* Initialize the thread-unique value.  */
-#define INIT_THREAD_SELF(descr, nr)  ({                                       \
-  __asm__ ("   sar  %%a1,%0\n"                                                \
-           "   srlg 0,%0,32\n"                                                \
-           "   sar  %%a0,0\n"                                                 \
-           : : "d" (descr) : "0" );                                           \
-})
-#endif
-
-/* Access to data in the thread descriptor is easy.  */
-#define THREAD_GETMEM(descr, member) \
-  ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
-  ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
-  ((void) sizeof (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
-  ((void) sizeof (descr), THREAD_SELF->member = (value))
-
-/* 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     8*1024*1024
-
-/* 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)
-{
-        int retval;
-
-        __asm__ __volatile__(
-                "  lgr  0,%2\n"
-                "  csg  0,%3,%1\n"
-                "  ipm  %0\n"
-                "  srl  %0,28\n"
-                "0:"
-                : "=&d" (retval), "+m" (*p)
-                : "d" (oldval) , "d" (newval)
-                : "cc", "0");
-        return retval == 0;
-}
-
-#endif /* pt-machine.h */
diff --git a/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym
deleted file mode 100644
index aee6be257..000000000
--- a/libpthread/linuxthreads/sysdeps/s390/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/libpthread/linuxthreads/sysdeps/s390/tls.h b/libpthread/linuxthreads/sysdeps/s390/tls.h
deleted file mode 100644
index d987bdbc2..000000000
--- a/libpthread/linuxthreads/sysdeps/s390/tls.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/* Definitions for thread-local data handling.  linuxthreads/s390 version.
-   Copyright (C) 2002, 2003, 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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#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 /* __ASSEMBLER__ */
-
-/* TLS is always supported if the tools support it.  There are no
-   kernel dependencies.  To avoid bothering with the TLS support code
-   at all, use configure --without-tls.
-
-   We need USE_TLS to be consistently defined, for ldsodefs.h
-   conditionals.  */
-
-#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) \
-  (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (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.
-
-   The value of this macro is null if successful, or an error string.  */
-#  define TLS_INIT_TP(descr, secondcall)				      \
-  ({									      \
-    void *_descr = (descr);						      \
-    tcbhead_t *head = _descr;						      \
-									      \
-    head->tcb = _descr;							      \
-    /* For now the thread descriptor is at the same address.  */	      \
-    head->self = _descr;						      \
-									      \
-    __builtin_set_thread_pointer (_descr);				      \
-    NULL;								      \
-  })
-
-/* Return the address of the dtv for the current thread.  */
-#  define THREAD_DTV() \
-  (((tcbhead_t *) __builtin_thread_pointer ())->dtv)
-
-# endif /* __ASSEMBLER__ */
-
-#else	/* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */
-
-# ifndef __ASSEMBLER__
-
-/* Get the thread descriptor definition.  */
-#  include <linuxthreads/descr.h>
-
-#  define NONTLS_INIT_TP \
-  do { 								\
-    static const tcbhead_t nontls_init_tp			\
-      = { .multiple_threads = 0 };				\
-    INIT_THREAD_SELF (&nontls_init_tp, 0);			\
-  } while (0)
-
-# endif /* __ASSEMBLER__ */
-
-#endif	/* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */
-
-#endif	/* tls.h */