mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +00:00
447777715a
2003-12-29 Jakub Jelinek <jakub@redhat.com> * posix/regexec.c (re_copy_regs): Revert comment change. Avoid memory leak if realloc fails. (proceed_next_node): Return -2 if re_node_set_insert fails. Return -2 if push_fail_stack fails. (push_fail_stack): Change fs->alloc only after successful realloc. (pop_fail_stack): Formatting. (set_regs): If proceed_next_node returns -2, free eps_via_nodes and fs. (check_arrival_add_next_nodes): Merge identical statements from if branches. * signal/Makefile (tests): Add tst-raise. * signal/tst-raise.c: New test.
142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/* Definitions for thread-local data handling. linuxthreads/IA-64 version.
|
|
Copyright (C) 2002, 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 <dl-sysdep.h>
|
|
# include <pt-machine.h>
|
|
# include <stddef.h>
|
|
|
|
/* Type for the dtv. */
|
|
typedef union dtv
|
|
{
|
|
size_t counter;
|
|
void *pointer;
|
|
} dtv_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__
|
|
|
|
typedef struct
|
|
{
|
|
dtv_t *dtv;
|
|
void *private;
|
|
} tcbhead_t;
|
|
|
|
/* 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)
|
|
|
|
/* This is the size we need before TCB. */
|
|
# define TLS_PRE_TCB_SIZE sizeof (struct _pthread_descr_struct)
|
|
|
|
/* Alignment requirements for the TCB. */
|
|
# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
|
|
|
|
/* The DTV is allocated at the TP; the TCB is placed elsewhere. */
|
|
# 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) \
|
|
(((tcbhead_t *)__thread_self)->dtv = (DTV))
|
|
|
|
/* Return dtv of given thread descriptor. */
|
|
# define GET_DTV(tcbp) \
|
|
(((tcbhead_t *) (tcbp))->dtv)
|
|
|
|
#if defined NEED_DL_SYSINFO
|
|
# define INIT_SYSINFO \
|
|
(((tcbhead_t *)__thread_self)->private = GL(dl_sysinfo))
|
|
#else
|
|
# define INIT_SYSINFO 0
|
|
#endif
|
|
|
|
/* 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 = (__typeof (__thread_self)) (tcbp), INIT_SYSINFO, NULL)
|
|
|
|
/* 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. */
|
|
# undef THREAD_SELF
|
|
# define THREAD_SELF (__thread_self - 1)
|
|
|
|
# undef INIT_THREAD_SELF
|
|
# define INIT_THREAD_SELF(descr, nr) \
|
|
(__thread_self = (struct _pthread_descr_struct *)(descr) + 1)
|
|
|
|
# define TLS_MULTIPLE_THREADS_IN_TCB 1
|
|
|
|
/* Get the thread descriptor definition. */
|
|
# include <linuxthreads/descr.h>
|
|
|
|
# endif
|
|
|
|
#else
|
|
|
|
# ifndef __ASSEMBLER__
|
|
|
|
typedef struct
|
|
{
|
|
void *tcb;
|
|
dtv_t *dtv;
|
|
void *self;
|
|
int multiple_threads;
|
|
} tcbhead_t;
|
|
|
|
/* Get the thread descriptor definition. */
|
|
# include <linuxthreads/descr.h>
|
|
|
|
# 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
|
|
|
|
#endif /* USE_TLS */
|
|
|
|
#endif /* tls.h */
|