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authorEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
committerEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
commit124af9f4b2b77b1510d88cfc8092c788d7e513c7 (patch)
treeccce720bef4c1c604417e2082cf9997a8d6dd7ab /libpthread/nptl/sysdeps/powerpc/tls.h
parent8028f35dbe29c5ace3883005e08ac91d873553b2 (diff)
Back out nptl changes, which for now will be done in branches/uClibc-nptl
Diffstat (limited to 'libpthread/nptl/sysdeps/powerpc/tls.h')
-rw-r--r--libpthread/nptl/sysdeps/powerpc/tls.h165
1 files changed, 0 insertions, 165 deletions
diff --git a/libpthread/nptl/sysdeps/powerpc/tls.h b/libpthread/nptl/sysdeps/powerpc/tls.h
deleted file mode 100644
index a7f69074e..000000000
--- a/libpthread/nptl/sysdeps/powerpc/tls.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/* Definition for thread-local data handling. NPTL/PowerPC version.
- Copyright (C) 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 1
-
-# include <dl-sysdep.h>
-
-#ifndef __ASSEMBLER__
-# include <stdbool.h>
-# include <stddef.h>
-# include <stdint.h>
-
-/* Type for the dtv. */
-typedef union dtv
-{
- size_t counter;
- struct
- {
- void *val;
- bool is_static;
- } pointer;
-} dtv_t;
-
-#else /* __ASSEMBLER__ */
-# include <tcb-offsets.h>
-#endif /* __ASSEMBLER__ */
-
-
-/* We require TLS support in the tools. */
-#ifndef HAVE_TLS_SUPPORT
-# error "TLS support is required."
-#endif
-
-/* Signal that TLS support is available. */
-# define USE_TLS 1
-
-#ifndef __ASSEMBLER__
-
-/* Get system call information. */
-# include <sysdep.h>
-
-/* The TP points to the start of the thread blocks. */
-# define TLS_DTV_AT_TP 1
-
-/* We use the multiple_threads field in the pthread struct */
-#define TLS_MULTIPLE_THREADS_IN_TCB 1
-
-/* Get the thread descriptor definition. */
-# include <nptl/descr.h>
-
-/* This layout is actually wholly private and not affected by the ABI.
- Nor does it overlap the pthread data structure, so we need nothing
- extra here at all. */
-typedef struct
-{
- dtv_t *dtv;
-} tcbhead_t;
-
-/* This is the size of the initial TCB. */
-# define TLS_INIT_TCB_SIZE 0
-
-/* Alignment requirements for the initial TCB. */
-# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
-
-/* This is the size of the TCB. */
-# define TLS_TCB_SIZE 0
-
-/* Alignment requirements for the TCB. */
-# define TLS_TCB_ALIGN __alignof__ (struct pthread)
-
-/* This is the size we need before TCB. */
-# define TLS_PRE_TCB_SIZE \
- (sizeof (struct pthread) \
- + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
-
-# ifndef __powerpc64__
-/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
-register void *__thread_register __asm__ ("r2");
-# define PT_THREAD_POINTER PT_R2
-# else
-/* Register r13 (tp) is reserved by the ABI as "thread pointer". */
-register void *__thread_register __asm__ ("r13");
-# define PT_THREAD_POINTER PT_R13
-# endif
-
-/* The following assumes that TP (R2 or R13) points to the end of the
- TCB + 0x7000 (per the ABI). This implies that TCB address is
- TP - 0x7000. As we define TLS_DTV_AT_TP we can
- assume that the pthread struct is allocated immediately ahead of the
- TCB. This implies that the pthread_descr address is
- TP - (TLS_PRE_TCB_SIZE + 0x7000). */
-# define TLS_TCB_OFFSET 0x7000
-
-/* 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))[-1].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))[-1].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_register = (void *) (tcbp) + TLS_TCB_OFFSET, NULL)
-
-/* Return the address of the dtv for the current thread. */
-# define THREAD_DTV() \
- (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET))[-1].dtv)
-
-/* Return the thread descriptor for the current thread. */
-# define THREAD_SELF \
- ((struct pthread *) (__thread_register \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
-
-/* Magic for libthread_db to know how to do THREAD_SELF. */
-# define DB_THREAD_SELF \
- REGISTER (32, 32, PT_THREAD_POINTER * 4, \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) \
- REGISTER (64, 64, PT_THREAD_POINTER * 8, \
- - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
-
-/* Read member of the thread descriptor directly. */
-# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
-
-/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
-# define THREAD_GETMEM_NC(descr, member, idx) \
- ((void)(descr), (THREAD_SELF)->member[idx])
-
-/* Set member of the thread descriptor directly. */
-# define THREAD_SETMEM(descr, member, value) \
- ((void)(descr), (THREAD_SELF)->member = (value))
-
-/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
-# define THREAD_SETMEM_NC(descr, member, idx, value) \
- ((void)(descr), (THREAD_SELF)->member[idx] = (value))
-
-/* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some
- different value to mean unset l_tls_offset. */
-# define NO_TLS_OFFSET -1
-
-#endif /* __ASSEMBLER__ */
-
-#endif /* tls.h */