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* structs.def: Add a descriptor for pointer.val field of dtv_t.

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* td_thr_tlsbase.c (td_thr_tlsbase): Extract pointer.val field from
	DTV slot.
This commit is contained in:
Roland McGrath 2006-02-04 00:48:40 +00:00
parent f2a2deef4d
commit 0fdd44dcb4
3 changed files with 18 additions and 5 deletions
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6
nptl_db/ChangeLog
View File

@ -1,3 +1,9 @@
2006-02-03 Roland McGrath <roland@redhat.com>
* structs.def: Add a descriptor for pointer.val field of dtv_t.
* td_thr_tlsbase.c (td_thr_tlsbase): Extract pointer.val field from
DTV slot.
2004-09-09 Roland McGrath <roland@redhat.com>
* td_ta_map_lwp2thr.c (td_ta_map_lwp2thr): Don't abort if inferior's

4
nptl_db/structs.def
View File

@ -1,5 +1,5 @@
/* List of types and symbols in libpthread examined by libthread_db.
Copyright (C) 2003 Free Software Foundation, Inc.
Copyright (C) 2003, 2006 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
@ -74,6 +74,8 @@ DB_STRUCT_FIELD (link_map, l_tls_modid)
#if !defined IS_IN_libpthread || USE_TLS
DB_STRUCT_ARRAY_FIELD (dtv, dtv)
# define pointer_val pointer.val /* Field of anonymous struct in dtv_t. */
DB_STRUCT_FIELD (dtv_t, pointer_val)
#endif
#if !defined IS_IN_libpthread || TLS_TCB_AT_TP
DB_STRUCT_FIELD (pthread, dtvp)

13
nptl_db/td_thr_tlsbase.c
View File

@ -1,5 +1,5 @@
/* Locate TLS data for a thread.
Copyright (C) 2003 Free Software Foundation, Inc.
Copyright (C) 2003, 2006 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
@ -25,7 +25,7 @@ td_thr_tlsbase (const td_thrhandle_t *th,
psaddr_t *base)
{
td_err_e err;
psaddr_t dtv, dtvptr;
psaddr_t dtv, dtvslot, dtvptr;
if (modid < 1)
return TD_NOTLS;
@ -35,8 +35,13 @@ td_thr_tlsbase (const td_thrhandle_t *th,
if (err != TD_OK)
return err;
/* Get the corresponding entry in the DTV. */
err = DB_GET_FIELD (dtvptr, th->th_ta_p, dtv, dtv, dtv, modid);
/* Find the corresponding entry in the DTV. */
err = DB_GET_FIELD_ADDRESS (dtvslot, th->th_ta_p, dtv, dtv, dtv, modid);
if (err != TD_OK)
return err;
/* Extract the TLS block address from that DTV slot. */
err = DB_GET_FIELD (dtvptr, th->th_ta_p, dtvslot, dtv_t, pointer_val, 0);
if (err != TD_OK)
return err;