d6f53c6f3e
* db_info.c [TLS_DTV_AT_TP && TLS_TP_OFFSET > 0] (_thread_db_pthread_dtvp): Define differently for this case (PowerPC).
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* This file is included by pthread_create.c to define in libpthread
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all the magic symbols required by libthread_db.
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Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "thread_dbP.h"
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#include <tls.h>
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typedef struct pthread pthread;
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typedef struct pthread_key_struct pthread_key_struct;
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typedef struct pthread_key_data pthread_key_data;
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typedef struct
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{
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struct pthread_key_data data[PTHREAD_KEY_2NDLEVEL_SIZE];
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}
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pthread_key_data_level2;
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typedef struct
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{
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union dtv dtv[UINT32_MAX / 2 / sizeof (union dtv)]; /* No constant bound. */
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} dtv;
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typedef struct link_map link_map;
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#define schedparam_sched_priority schedparam.sched_priority
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#define eventbuf_eventmask eventbuf.eventmask
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#define eventbuf_eventmask_event_bits eventbuf.eventmask.event_bits
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#define DESC(name, offset, obj) \
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DB_DEFINE_DESC (name, 8 * sizeof (obj), 1, offset);
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#define ARRAY_DESC(name, offset, obj) \
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DB_DEFINE_DESC (name, \
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8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \
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offset);
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#if TLS_TCB_AT_TP
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# define dtvp header.dtv
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#elif TLS_DTV_AT_TP && TLS_TP_OFFSET > 0
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/* Special case hack. Really this #if should be TLS_TCB_SIZE == 0, but
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when untrue it's a sizeof expression, and that wouldn't fly. In this
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flavor (PowerPC), there is no TCB containing the DTV at the TP, but
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actually the TCB lies behind the TP, i.e. at the very end of the area
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covered by TLS_PRE_TCB_SIZE. */
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DESC (_thread_db_pthread_dtvp,
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TLS_PRE_TCB_SIZE - sizeof (tcbhead_t) + offsetof (tcbhead_t, dtv),
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union dtv)
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#elif TLS_DTV_AT_TP
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/* Special case hack. */
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DESC (_thread_db_pthread_dtvp,
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TLS_PRE_TCB_SIZE + offsetof (tcbhead_t, dtv), union dtv)
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#endif
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#define DB_STRUCT(type) \
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const uint32_t _thread_db_sizeof_##type = sizeof (type);
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#define DB_STRUCT_FIELD(type, field) \
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DESC (_thread_db_##type##_##field, \
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offsetof (type, field), ((type *) 0)->field)
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#define DB_STRUCT_ARRAY_FIELD(type, field) \
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ARRAY_DESC (_thread_db_##type##_##field, \
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offsetof (type, field), ((type *) 0)->field)
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#define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name)
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#define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name)
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#define DB_SYMBOL(name) /* Nothing. */
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#define DB_FUNCTION(name) /* Nothing. */
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#include "structs.def"
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#undef DB_STRUCT
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#undef DB_STRUCT_FIELD
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#undef DB_SYMBOL
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#undef DB_FUNCTION
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#undef DB_VARIABLE
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#undef DESC
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#ifdef DB_THREAD_SELF
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# ifdef DB_THREAD_SELF_INCLUDE
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# include DB_THREAD_SELF_INCLUDE
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# endif
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/* This macro is defined in the machine's tls.h using the three below. */
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# define CONST_THREAD_AREA(bits, value) \
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const uint32_t _thread_db_const_thread_area = (value);
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# define REGISTER_THREAD_AREA(bits, regofs, scale) \
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DB_DEFINE_DESC (_thread_db_register##bits##_thread_area, \
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bits, (scale), (regofs));
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# define REGISTER(bits, size, regofs, bias) \
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DB_DEFINE_DESC (_thread_db_register##bits, size, (uint32_t)(bias), (regofs));
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DB_THREAD_SELF
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#endif
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