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7f08f55a RM |
1 | /* This file is included by pthread_create.c to define in libpthread |
2 | all the magic symbols required by libthread_db. | |
3 | ||
d614a753 | 4 | Copyright (C) 2003-2020 Free Software Foundation, Inc. |
7f08f55a RM |
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 | |
59ba27a6 | 18 | License along with the GNU C Library; if not, see |
5a82c748 | 19 | <https://www.gnu.org/licenses/>. */ |
7f08f55a | 20 | |
e054f494 | 21 | #include <stdint.h> |
7f08f55a RM |
22 | #include "thread_dbP.h" |
23 | #include <tls.h> | |
f8aeae34 | 24 | #include <ldsodefs.h> |
7f08f55a RM |
25 | |
26 | typedef struct pthread pthread; | |
27 | typedef struct pthread_key_struct pthread_key_struct; | |
28 | typedef struct pthread_key_data pthread_key_data; | |
29 | typedef struct | |
30 | { | |
31 | struct pthread_key_data data[PTHREAD_KEY_2NDLEVEL_SIZE]; | |
32 | } | |
33 | pthread_key_data_level2; | |
34 | ||
35 | typedef struct | |
36 | { | |
37 | union dtv dtv[UINT32_MAX / 2 / sizeof (union dtv)]; /* No constant bound. */ | |
38 | } dtv; | |
39 | ||
40 | typedef struct link_map link_map; | |
f8aeae34 AO |
41 | typedef struct rtld_global rtld_global; |
42 | typedef struct dtv_slotinfo_list dtv_slotinfo_list; | |
43 | typedef struct dtv_slotinfo dtv_slotinfo; | |
7f08f55a | 44 | |
7d9d8bd1 RM |
45 | /* Actually static in nptl/init.c, but we only need it for typeof. */ |
46 | extern bool __nptl_initial_report_events; | |
7f08f55a RM |
47 | |
48 | #define schedparam_sched_priority schedparam.sched_priority | |
49 | ||
50 | #define eventbuf_eventmask eventbuf.eventmask | |
51 | #define eventbuf_eventmask_event_bits eventbuf.eventmask.event_bits | |
52 | ||
53 | #define DESC(name, offset, obj) \ | |
54 | DB_DEFINE_DESC (name, 8 * sizeof (obj), 1, offset); | |
55 | #define ARRAY_DESC(name, offset, obj) \ | |
56 | DB_DEFINE_DESC (name, \ | |
57 | 8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \ | |
58 | offset); | |
cba932a5 FW |
59 | /* Flexible arrays do not have a length that can be determined. */ |
60 | #define FLEXIBLE_ARRAY_DESC(name, offset, obj) \ | |
61 | DB_DEFINE_DESC (name, 8 * sizeof (obj)[0], 0, offset); | |
7f08f55a RM |
62 | |
63 | #if TLS_TCB_AT_TP | |
64 | # define dtvp header.dtv | |
65 | #elif TLS_DTV_AT_TP | |
6964ccb2 RM |
66 | /* Special case hack. If TLS_TCB_SIZE == 0 (on PowerPC), there is no TCB |
67 | containing the DTV at the TP, but actually the TCB lies behind the TP, | |
68 | i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */ | |
7f08f55a | 69 | DESC (_thread_db_pthread_dtvp, |
6964ccb2 | 70 | TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv) |
416b6309 | 71 | - (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *) |
7f08f55a RM |
72 | #endif |
73 | ||
74 | ||
75 | #define DB_STRUCT(type) \ | |
76 | const uint32_t _thread_db_sizeof_##type = sizeof (type); | |
77 | #define DB_STRUCT_FIELD(type, field) \ | |
78 | DESC (_thread_db_##type##_##field, \ | |
79 | offsetof (type, field), ((type *) 0)->field) | |
80 | #define DB_STRUCT_ARRAY_FIELD(type, field) \ | |
81 | ARRAY_DESC (_thread_db_##type##_##field, \ | |
82 | offsetof (type, field), ((type *) 0)->field) | |
cba932a5 FW |
83 | #define DB_STRUCT_FLEXIBLE_ARRAY(type, field) \ |
84 | FLEXIBLE_ARRAY_DESC (_thread_db_##type##_##field, \ | |
85 | offsetof (type, field), ((type *) 0)->field) | |
7f08f55a RM |
86 | #define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name) |
87 | #define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name) | |
88 | #define DB_SYMBOL(name) /* Nothing. */ | |
d43147cd | 89 | #define DB_FUNCTION(name) /* Nothing. */ |
7f08f55a RM |
90 | #include "structs.def" |
91 | #undef DB_STRUCT | |
92 | #undef DB_STRUCT_FIELD | |
93 | #undef DB_SYMBOL | |
d43147cd | 94 | #undef DB_FUNCTION |
7f08f55a RM |
95 | #undef DB_VARIABLE |
96 | #undef DESC | |
97 | ||
98 | ||
99 | ||
100 | #ifdef DB_THREAD_SELF | |
101 | # ifdef DB_THREAD_SELF_INCLUDE | |
102 | # include DB_THREAD_SELF_INCLUDE | |
103 | # endif | |
104 | ||
105 | /* This macro is defined in the machine's tls.h using the three below. */ | |
106 | # define CONST_THREAD_AREA(bits, value) \ | |
107 | const uint32_t _thread_db_const_thread_area = (value); | |
108 | # define REGISTER_THREAD_AREA(bits, regofs, scale) \ | |
109 | DB_DEFINE_DESC (_thread_db_register##bits##_thread_area, \ | |
110 | bits, (scale), (regofs)); | |
38753391 RM |
111 | # define REGISTER(bits, size, regofs, bias) \ |
112 | DB_DEFINE_DESC (_thread_db_register##bits, size, (uint32_t)(bias), (regofs)); | |
7f08f55a RM |
113 | |
114 | DB_THREAD_SELF | |
115 | #endif |