libpthread/nptl_db: debugging support for nptl

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/libpthread/nptl_db/db_info.c b/libpthread/nptl_db/db_info.c
new file mode 100644
index 000000000..5aec152d5
--- /dev/null
+++ b/libpthread/nptl_db/db_info.c
@@ -0,0 +1,103 @@
+/* This file is included by pthread_create.c to define in libpthread
+   all the magic symbols required by libthread_db.
+
+   Copyright (C) 2003, 2004 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "thread_dbP.h"
+#include <tls.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;
+
+
+#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);
+
+#if defined(TLS_TCB_AT_TP)
+# define dtvp header.dtv
+#elif defined(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_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