diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-02-14 23:00:19 -0600 | 
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-02-14 23:00:19 -0600 | 
| commit | 6b6ede3d15f04fe825cfa9f697507457e3640344 (patch) | |
| tree | efe9bf75eaf2200f89087ed0ef2ef350549ccd6d /libpthread/linuxthreads/sysdeps/sparc | |
| parent | f972c2262fd4efc2bbf9789dce145bb705acec24 (diff) | |
resolve merge
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/sparc')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/pspinlock.c | 87 | ||||
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.h | 1 | ||||
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.sym | 4 | ||||
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/sparc/tls.h | 114 | 
4 files changed, 1 insertions, 205 deletions
| diff --git a/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c b/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c deleted file mode 100644 index 4de152be3..000000000 --- a/libpthread/linuxthreads/sysdeps/sparc/pspinlock.c +++ /dev/null @@ -1,87 +0,0 @@ -/* POSIX spinlock implementation.  SPARC32 version. -   Copyright (C) 2000 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; 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.  */ -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ -  __asm__ __volatile__ -    ("1: ldstub [%0], %%g2\n" -     "   orcc   %%g2, 0x0, %%g0\n" -     "   bne,a  2f\n" -     "   ldub   [%0], %%g2\n" -     ".subsection 2\n" -     "2: orcc   %%g2, 0x0, %%g0\n" -     "   bne,a  2b\n" -     "   ldub   [%0], %%g2\n" -     "   b,a    1b\n" -     ".previous" -     : /* no outputs */ -     : "r" (lock) -     : "g2", "memory", "cc"); -  return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ -  int result; -  __asm__ __volatile__ -    ("ldstub [%1], %0" -     : "=r" (result) -     : "r" (lock) -     : "memory"); -  return result == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ -  *lock = 0; -  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/sparc/tcb-offsets.h b/libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.h new file mode 100644 index 000000000..6d6f111f4 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.h @@ -0,0 +1 @@ +#include "../../../linuxthreads/sysdeps/pthread/tcb-offsets.h" diff --git a/libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/sparc/tcb-offsets.sym deleted file mode 100644 index aee6be257..000000000 --- a/libpthread/linuxthreads/sysdeps/sparc/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/sparc/tls.h b/libpthread/linuxthreads/sysdeps/sparc/tls.h deleted file mode 100644 index 1e31c2e63..000000000 --- a/libpthread/linuxthreads/sysdeps/sparc/tls.h +++ /dev/null @@ -1,114 +0,0 @@ -/* Definitions for thread-local data handling.  linuxthreads/sparc 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__ */ - -#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 *) __thread_self)->dtv = (DTV)) - -/* Return dtv of given thread descriptor.  */ -#  define GET_DTV(descr) \ -  (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer.  */ -# define TLS_INIT_TP(descr, secondcall) \ -  (__thread_self = (__typeof (__thread_self)) (descr), NULL) - -/* Return the address of the dtv for the current thread.  */ -#  define THREAD_DTV() \ -  (((tcbhead_t *) __thread_self)->dtv) - -# endif - -#else - -# define NONTLS_INIT_TP \ -  do {									      \ -    static const tcbhead_t nontls_init_tp				      \ -      = { .multiple_threads = 0 };					      \ -    __thread_self = (__typeof (__thread_self)) &nontls_init_tp;		      \ -  } while (0) - -#endif /* USE_TLS */ - -#endif	/* tls.h */ | 
