nptl_db/db_info.c

   1 /* This file is included by pthread_create.c to define in libpthread
   2    all the magic symbols required by libthread_db.
   3
   4    Copyright (C) 2003 Free Software Foundation, Inc.
   5    This file is part of the GNU C Library.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, write to the Free
  19    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  20    02111-1307 USA.  */
  21
  22 #include "thread_dbP.h"
  23 #include <tls.h>
  24
  25 typedef struct pthread pthread;
  26 typedef struct pthread_key_struct pthread_key_struct;
  27 typedef struct pthread_key_data pthread_key_data;
  28 typedef struct
  29 {
  30   struct pthread_key_data data[PTHREAD_KEY_2NDLEVEL_SIZE];
  31 }
  32 pthread_key_data_level2;
  33
  34 typedef struct
  35 {
  36   union dtv dtv[UINT32_MAX / 2 / sizeof (union dtv)]; /* No constant bound.  */
  37 } dtv;
  38
  39 typedef struct link_map link_map;
  40
  41
  42 #define schedparam_sched_priority schedparam.sched_priority
  43
  44 #define eventbuf_eventmask eventbuf.eventmask
  45 #define eventbuf_eventmask_event_bits eventbuf.eventmask.event_bits
  46
  47 #define DESC(name, offset, obj) \
  48   DB_DEFINE_DESC (name, 8 * sizeof (obj), 1, offset);
  49 #define ARRAY_DESC(name, offset, obj) \
  50   DB_DEFINE_DESC (name, \
  51                   8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \
  52                   offset);
  53
  54 #if TLS_TCB_AT_TP
  55 # define dtvp header.dtv
  56 #elif TLS_DTV_AT_TP
  57 /* Special case hack.  */
  58 DESC (_thread_db_pthread_dtvp,
  59       TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv), union dtv)
  60 #endif
  61
  62
  63 #define DB_STRUCT(type) \
  64   const uint32_t _thread_db_sizeof_##type = sizeof (type);
  65 #define DB_STRUCT_FIELD(type, field) \
  66   DESC (_thread_db_##type##_##field, \
  67         offsetof (type, field), ((type *) 0)->field)
  68 #define DB_STRUCT_ARRAY_FIELD(type, field) \
  69   ARRAY_DESC (_thread_db_##type##_##field, \
  70               offsetof (type, field), ((type *) 0)->field)
  71 #define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name)
  72 #define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name)
  73 #define DB_SYMBOL(name) /* Nothing.  */
  74 #include "structs.def"
  75 #undef DB_STRUCT
  76 #undef DB_STRUCT_FIELD
  77 #undef DB_SYMBOL
  78 #undef DB_VARIABLE
  79 #undef DESC
  80
  81
  82
  83 #ifdef DB_THREAD_SELF
  84 # ifdef DB_THREAD_SELF_INCLUDE
  85 #  include DB_THREAD_SELF_INCLUDE
  86 # endif
  87
  88 /* This macro is defined in the machine's tls.h using the three below.  */
  89 # define CONST_THREAD_AREA(bits, value) \
  90   const uint32_t _thread_db_const_thread_area = (value);
  91 # define REGISTER_THREAD_AREA(bits, regofs, scale) \
  92   DB_DEFINE_DESC (_thread_db_register##bits##_thread_area, \
  93                   bits, (scale), (regofs));
  94 # define REGISTER(bits, regofs, bias) \
  95   DB_DEFINE_DESC (_thread_db_register##bits, bits, (uint32_t)(bias), (regofs));
  96
  97 DB_THREAD_SELF
  98 #endif