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, 2004 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, see
19    <http://www.gnu.org/licenses/>.  */
20 
21 #include "thread_dbP.h"
22 #include <tls.h>
23 
24 typedef struct pthread pthread;
25 typedef struct pthread_key_struct pthread_key_struct;
26 typedef struct pthread_key_data pthread_key_data;
27 typedef struct
28 {
29   struct pthread_key_data data[PTHREAD_KEY_2NDLEVEL_SIZE];
30 }
31 pthread_key_data_level2;
32 
33 typedef struct
34 {
35   union dtv dtv[UINT32_MAX / 2 / sizeof (union dtv)]; /* No constant bound.  */
36 } dtv;
37 
38 typedef struct link_map link_map;
39 
40 
41 #define schedparam_sched_priority schedparam.sched_priority
42 
43 #define eventbuf_eventmask eventbuf.eventmask
44 #define eventbuf_eventmask_event_bits eventbuf.eventmask.event_bits
45 
46 #define DESC(name, offset, obj) \
47   DB_DEFINE_DESC (name, 8 * sizeof (obj), 1, offset);
48 #define ARRAY_DESC(name, offset, obj) \
49   DB_DEFINE_DESC (name, \
50 		  8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \
51 		  offset);
52 
53 #if defined(TLS_TCB_AT_TP)
54 # define dtvp header.dtv
55 #elif defined(TLS_DTV_AT_TP)
56 /* Special case hack.  If TLS_TCB_SIZE == 0 (on PowerPC), there is no TCB
57    containing the DTV at the TP, but actually the TCB lies behind the TP,
58    i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE.  */
59 DESC (_thread_db_pthread_dtvp,
60       TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv)
61       - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv)
62 #endif
63 
64 
65 #define DB_STRUCT(type) \
66   const uint32_t _thread_db_sizeof_##type = sizeof (type);
67 #define DB_STRUCT_FIELD(type, field) \
68   DESC (_thread_db_##type##_##field, \
69 	offsetof (type, field), ((type *) 0)->field)
70 #define DB_STRUCT_ARRAY_FIELD(type, field) \
71   ARRAY_DESC (_thread_db_##type##_##field, \
72 	      offsetof (type, field), ((type *) 0)->field)
73 #define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name)
74 #define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name)
75 #define DB_SYMBOL(name)	/* Nothing.  */
76 #define DB_FUNCTION(name) /* Nothing.  */
77 #include "structs.def"
78 #undef DB_STRUCT
79 #undef DB_STRUCT_FIELD
80 #undef DB_SYMBOL
81 #undef DB_FUNCTION
82 #undef DB_VARIABLE
83 #undef DESC
84 
85 
86 
87 #ifdef DB_THREAD_SELF
88 # ifdef DB_THREAD_SELF_INCLUDE
89 #  include DB_THREAD_SELF_INCLUDE
90 # endif
91 
92 /* This macro is defined in the machine's tls.h using the three below.  */
93 # define CONST_THREAD_AREA(bits, value) \
94   const uint32_t _thread_db_const_thread_area = (value);
95 # define REGISTER_THREAD_AREA(bits, regofs, scale) \
96   DB_DEFINE_DESC (_thread_db_register##bits##_thread_area, \
97 		  bits, (scale), (regofs));
98 # define REGISTER(bits, size, regofs, bias) \
99   DB_DEFINE_DESC (_thread_db_register##bits, size, (uint32_t)(bias), (regofs));
100 
101 DB_THREAD_SELF
102 #endif
103