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/* This file is included by pthread_create.c to define in libpthread
all the magic symbols required by libthread_db.
Copyright (C) 2003-2019 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, see
<https://www.gnu.org/licenses/>. */
#include <stdint.h>
#include "thread_dbP.h"
#include <tls.h>
#include <ldsodefs.h>
typedef struct pthread pthread;
typedef struct pthread_key_struct pthread_key_struct;
typedef struct pthread_key_data pthread_key_data;
typedef struct
{
struct pthread_key_data data[PTHREAD_KEY_2NDLEVEL_SIZE];
}
pthread_key_data_level2;
typedef struct
{
union dtv dtv[UINT32_MAX / 2 / sizeof (union dtv)]; /* No constant bound. */
} dtv;
typedef struct link_map link_map;
typedef struct rtld_global rtld_global;
typedef struct dtv_slotinfo_list dtv_slotinfo_list;
typedef struct dtv_slotinfo dtv_slotinfo;
/* Actually static in nptl/init.c, but we only need it for typeof. */
extern bool __nptl_initial_report_events;
#define schedparam_sched_priority schedparam.sched_priority
#define eventbuf_eventmask eventbuf.eventmask
#define eventbuf_eventmask_event_bits eventbuf.eventmask.event_bits
#define DESC(name, offset, obj) \
DB_DEFINE_DESC (name, 8 * sizeof (obj), 1, offset);
#define ARRAY_DESC(name, offset, obj) \
DB_DEFINE_DESC (name, \
8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \
offset);
/* Flexible arrays do not have a length that can be determined. */
#define FLEXIBLE_ARRAY_DESC(name, offset, obj) \
DB_DEFINE_DESC (name, 8 * sizeof (obj)[0], 0, offset);
#if TLS_TCB_AT_TP
# define dtvp header.dtv
#elif TLS_DTV_AT_TP
/* Special case hack. If TLS_TCB_SIZE == 0 (on PowerPC), there is no TCB
containing the DTV at the TP, but actually the TCB lies behind the TP,
i.e. at the very end of the area covered by TLS_PRE_TCB_SIZE. */
DESC (_thread_db_pthread_dtvp,
TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv)
- (TLS_TCB_SIZE == 0 ? sizeof (tcbhead_t) : 0), union dtv *)
#endif
#define DB_STRUCT(type) \
const uint32_t _thread_db_sizeof_##type = sizeof (type);
#define DB_STRUCT_FIELD(type, field) \
DESC (_thread_db_##type##_##field, \
offsetof (type, field), ((type *) 0)->field)
#define DB_STRUCT_ARRAY_FIELD(type, field) \
ARRAY_DESC (_thread_db_##type##_##field, \
offsetof (type, field), ((type *) 0)->field)
#define DB_STRUCT_FLEXIBLE_ARRAY(type, field) \
FLEXIBLE_ARRAY_DESC (_thread_db_##type##_##field, \
offsetof (type, field), ((type *) 0)->field)
#define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name)
#define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name)
#define DB_SYMBOL(name) /* Nothing. */
#define DB_FUNCTION(name) /* Nothing. */
#include "structs.def"
#undef DB_STRUCT
#undef DB_STRUCT_FIELD
#undef DB_SYMBOL
#undef DB_FUNCTION
#undef DB_VARIABLE
#undef DESC
#ifdef DB_THREAD_SELF
# ifdef DB_THREAD_SELF_INCLUDE
# include DB_THREAD_SELF_INCLUDE
# endif
/* This macro is defined in the machine's tls.h using the three below. */
# define CONST_THREAD_AREA(bits, value) \
const uint32_t _thread_db_const_thread_area = (value);
# define REGISTER_THREAD_AREA(bits, regofs, scale) \
DB_DEFINE_DESC (_thread_db_register##bits##_thread_area, \
bits, (scale), (regofs));
# define REGISTER(bits, size, regofs, bias) \
DB_DEFINE_DESC (_thread_db_register##bits, size, (uint32_t)(bias), (regofs));
DB_THREAD_SELF
#endif
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