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Diffstat (limited to 'nptl/sysdeps/sparc/tls.h')
| -rw-r--r-- | nptl/sysdeps/sparc/tls.h | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h deleted file mode 100644 index 5ea9355..0000000 --- a/nptl/sysdeps/sparc/tls.h +++ /dev/null @@ -1,178 +0,0 @@ -/* Definitions for thread-local data handling. NPTL/sparc version. - Copyright (C) 2003-2014 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 - -#include <dl-sysdep.h> -#ifndef __ASSEMBLER__ -# include <stdbool.h> -# include <stddef.h> -# include <stdint.h> -# include <stdlib.h> -# include <list.h> -# include <kernel-features.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; - int multiple_threads; -#if __WORDSIZE == 64 - int gscope_flag; -#endif - uintptr_t sysinfo; - uintptr_t stack_guard; - uintptr_t pointer_guard; -#if __WORDSIZE != 64 - int gscope_flag; -#endif -#ifndef __ASSUME_PRIVATE_FUTEX - int private_futex; -#endif -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - - -#ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - -register struct pthread *__thread_self __asm__("%g7"); - -/* This is the size of the initial TCB. Can't be just sizeof (tcbhead_t), - because NPTL getpid, __libc_alloca_cutoff etc. need (almost) the whole - struct pthread even when not linked with -lpthread. */ -# define TLS_INIT_TCB_SIZE sizeof (struct pthread) - -/* 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 sizeof (struct pthread) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct pthread) - -/* 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 -# define TLS_DTV_AT_TP 0 - -/* Get the thread descriptor definition. */ -# include <nptl/descr.h> - -/* 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) \ - (__thread_self = (__typeof (__thread_self)) (descr), NULL) - -/* Value passed to 'clone' for initialization of the thread register. */ -# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) __thread_self)->dtv) - -/* Return the thread descriptor for the current thread. */ -#define THREAD_SELF __thread_self - -/* Magic for libthread_db to know how to do THREAD_SELF. */ -# define DB_THREAD_SELF \ - REGISTER (32, 32, 10 * 4, 0) \ - REGISTER (64, __WORDSIZE, (6 * 8) + (__WORDSIZE==64?0:4), 0) - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - descr->member -#define THREAD_GETMEM_NC(descr, member, idx) \ - descr->member[idx] -#define THREAD_SETMEM(descr, member, value) \ - descr->member = (value) -#define THREAD_SETMEM_NC(descr, member, idx, value) \ - descr->member[idx] = (value) - -/* Set the stack guard field in TCB head. */ -#define THREAD_SET_STACK_GUARD(value) \ - THREAD_SETMEM (THREAD_SELF, header.stack_guard, value) -# define THREAD_COPY_STACK_GUARD(descr) \ - ((descr)->header.stack_guard \ - = THREAD_GETMEM (THREAD_SELF, header.stack_guard)) - -/* Get/set the stack guard field in TCB head. */ -#define THREAD_GET_POINTER_GUARD() \ - THREAD_GETMEM (THREAD_SELF, header.pointer_guard) -#define THREAD_SET_POINTER_GUARD(value) \ - THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value) -# define THREAD_COPY_POINTER_GUARD(descr) \ - ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ()) - -/* Get and set the global scope generation counter in struct pthread. */ -#define THREAD_GSCOPE_FLAG_UNUSED 0 -#define THREAD_GSCOPE_FLAG_USED 1 -#define THREAD_GSCOPE_FLAG_WAIT 2 -#define THREAD_GSCOPE_RESET_FLAG() \ - do \ - { int __res \ - = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ - THREAD_GSCOPE_FLAG_UNUSED); \ - if (__res == THREAD_GSCOPE_FLAG_WAIT) \ - lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \ - } \ - while (0) -#define THREAD_GSCOPE_SET_FLAG() \ - do \ - { \ - THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ - atomic_write_barrier (); \ - } \ - while (0) -#define THREAD_GSCOPE_WAIT() \ - GL(dl_wait_lookup_done) () - -#endif /* !ASSEMBLER */ - -#endif /* tls.h */ |