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authorWaldemar Brodkorb <wbx@openadk.org>2014-09-06 14:45:42 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2014-09-20 22:10:06 +0200
commit481de81559b8c58c7745a29d560c304a0f6c2658 (patch)
treea937377958e858caf35c8c30c38c1ad532a771db /libpthread/linuxthreads/sysdeps/s390
parenta22a0030f32b828c0f2e804d1ed1fe567ddab680 (diff)
linuxthreads: remove unused s390 code
Cleanup linuxthreads by removing unused s390 code. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/s390')
-rw-r--r--libpthread/linuxthreads/sysdeps/s390/pspinlock.c90
-rw-r--r--libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h119
-rw-r--r--libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h124
-rw-r--r--libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym4
-rw-r--r--libpthread/linuxthreads/sysdeps/s390/tls.h144
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 */