diff options
Diffstat (limited to 'linuxthreads/sysdeps/powerpc/powerpc64/tls.h')
| -rw-r--r-- | linuxthreads/sysdeps/powerpc/powerpc64/tls.h | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/linuxthreads/sysdeps/powerpc/powerpc64/tls.h b/linuxthreads/sysdeps/powerpc/powerpc64/tls.h deleted file mode 100644 index fefb452..0000000 --- a/linuxthreads/sysdeps/powerpc/powerpc64/tls.h +++ /dev/null @@ -1,134 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/PowerPC64 version. - Copyright (C) 2003 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 <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - void *pointer; -} dtv_t; - - -typedef struct -{ - dtv_t *dtv; - - /* Reserved for the thread implementation. Unused in LinuxThreads. */ - void *private; -} tcbhead_t; -#endif - - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.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 (tcbhead_t) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size we need before TCB. */ -# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* the following assumes that TP (R13) is points to the end of the tcb - + 0x7000 (per the ABI). This implies that tcb address is - R13-(TLS_TCB_SIZE + 0x7000). As we define TLS_DTV_AT_TP we can - assume that the pthread_descr is allocate immediately ahead of the - tcb. This implies that the pthread_descr address is - R13-(TLS_PRE_TCB_SIZE + TLS_TCB_SIZE + 0x7000). */ -# define TLS_TCB_OFFSET 0x7000 - -/* The DTV is allocated at the TP; the TCB is placed elsewhere. */ -/* This is not really true for powerpc64. We are following alpha - where the DTV pointer is first doubleword in the TCB. */ -# define TLS_DTV_AT_TP 1 - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(TCBP, DTVP) \ - (((tcbhead_t *) (TCBP))->dtv = (DTVP) + 1) - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(DTV) (THREAD_DTV() = (DTV)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(TCBP) (((tcbhead_t *) (TCBP))->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(TCBP, SECONDCALL) \ - (__thread_self = (uintptr_t) (TCBP) + TLS_TCB_OFFSET + TLS_TCB_SIZE, 0) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) (__thread_register - (TLS_TCB_OFFSET + TLS_TCB_SIZE)))->dtv) - -/* Return the thread descriptor for the current thread. */ -# undef THREAD_SELF -# define THREAD_SELF \ - ((pthread_descr) (__thread_register \ - - (TLS_TCB_OFFSET + TLS_TCB_SIZE + TLS_PRE_TCB_SIZE))) - -# undef INIT_THREAD_SELF -# define INIT_THREAD_SELF(DESCR, NR) \ - (__thread_self = (pthread_descr) (((char *)(DESCR)) \ - + (TLS_TCB_OFFSET + TLS_TCB_SIZE + TLS_PRE_TCB_SIZE))) - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* Generic bits of LinuxThreads may call these macros with - DESCR set to NULL. We are expected to be able to reference - the "current" value. */ - -#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)) - -# endif /* HAVE_TLS_SUPPORT */ -#endif /* __ASSEMBLER__ */ - -#endif /* tls.h */ |