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Diffstat (limited to 'linuxthreads/sysdeps/s390/tls.h')
| -rw-r--r-- | linuxthreads/sysdeps/s390/tls.h | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/linuxthreads/sysdeps/s390/tls.h b/linuxthreads/sysdeps/s390/tls.h deleted file mode 100644 index f750f2d6f7..0000000000 --- a/linuxthreads/sysdeps/s390/tls.h +++ /dev/null @@ -1,145 +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, 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 /* __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 */ |