sysdeps/nptl/pthread-functions.h

   1 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _PTHREAD_FUNCTIONS_H
  20 #define _PTHREAD_FUNCTIONS_H    1
  21
  22 #include <pthread.h>
  23 #include <setjmp.h>
  24 #include <internaltypes.h>
  25 #include <sysdep.h>
  26
  27 struct xid_command;
  28
  29 /* Data type shared with libc.  The libc uses it to pass on calls to
  30    the thread functions.  */
  31 struct pthread_functions
  32 {
  33   int (*ptr___pthread_cond_broadcast) (pthread_cond_t *);
  34   int (*ptr___pthread_cond_signal) (pthread_cond_t *);
  35   int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *);
  36   int (*ptr___pthread_cond_timedwait) (pthread_cond_t *, pthread_mutex_t *,
  37                                        const struct timespec *);
  38   int (*ptr___pthread_cond_broadcast_2_0) (pthread_cond_2_0_t *);
  39   int (*ptr___pthread_cond_signal_2_0) (pthread_cond_2_0_t *);
  40   int (*ptr___pthread_cond_wait_2_0) (pthread_cond_2_0_t *, pthread_mutex_t *);
  41   int (*ptr___pthread_cond_timedwait_2_0) (pthread_cond_2_0_t *,
  42                                            pthread_mutex_t *,
  43                                            const struct timespec *);
  44   void (*ptr___pthread_exit) (void *) __attribute__ ((__noreturn__));
  45   int (*ptr_pthread_mutex_destroy) (pthread_mutex_t *);
  46   int (*ptr_pthread_mutex_init) (pthread_mutex_t *,
  47                                  const pthread_mutexattr_t *);
  48   int (*ptr_pthread_mutex_lock) (pthread_mutex_t *);
  49   int (*ptr_pthread_mutex_unlock) (pthread_mutex_t *);
  50   int (*ptr___pthread_setcancelstate) (int, int *);
  51   int (*ptr_pthread_setcanceltype) (int, int *);
  52   void (*ptr___pthread_cleanup_upto) (__jmp_buf, char *);
  53   int (*ptr___pthread_once) (pthread_once_t *, void (*) (void));
  54   int (*ptr___pthread_rwlock_rdlock) (pthread_rwlock_t *);
  55   int (*ptr___pthread_rwlock_wrlock) (pthread_rwlock_t *);
  56   int (*ptr___pthread_rwlock_unlock) (pthread_rwlock_t *);
  57   int (*ptr___pthread_key_create) (pthread_key_t *, void (*) (void *));
  58   void *(*ptr___pthread_getspecific) (pthread_key_t);
  59   int (*ptr___pthread_setspecific) (pthread_key_t, const void *);
  60   void (*ptr__pthread_cleanup_push_defer) (struct _pthread_cleanup_buffer *,
  61                                            void (*) (void *), void *);
  62   void (*ptr__pthread_cleanup_pop_restore) (struct _pthread_cleanup_buffer *,
  63                                             int);
  64 #define HAVE_PTR_NTHREADS
  65   unsigned int *ptr_nthreads;
  66   void (*ptr___pthread_unwind) (__pthread_unwind_buf_t *)
  67        __attribute ((noreturn)) __cleanup_fct_attribute;
  68   void (*ptr__nptl_deallocate_tsd) (void);
  69   int (*ptr__nptl_setxid) (struct xid_command *);
  70   void (*ptr_set_robust) (struct pthread *);
  71 };
  72
  73 /* Variable in libc.so.  */
  74 extern struct pthread_functions __libc_pthread_functions attribute_hidden;
  75 extern int __libc_pthread_functions_init attribute_hidden;
  76
  77 #ifdef PTR_DEMANGLE
  78 # define PTHFCT_CALL(fct, params) \
  79   ({ __typeof (__libc_pthread_functions.fct) __p;                             \
  80      __p = __libc_pthread_functions.fct;                                      \
  81      PTR_DEMANGLE (__p);                                                      \
  82      __p params; })
  83 #else
  84 # define PTHFCT_CALL(fct, params) \
  85   __libc_pthread_functions.fct params
  86 #endif
  87
  88 #endif  /* pthread-functions.h */