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76a50749 | 1 | /* Get a thread's general register set. |
7d9d8bd1 | 2 | Copyright (C) 1999, 2000, 2001, 2002, 2003, 2007 Free Software Foundation, Inc. |
76a50749 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 1999. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
20 | ||
21 | #include "thread_dbP.h" | |
22 | ||
23 | ||
24 | td_err_e | |
7f08f55a | 25 | td_thr_getgregs (const td_thrhandle_t *th, prgregset_t regset) |
76a50749 | 26 | { |
7f08f55a RM |
27 | psaddr_t cancelhandling, tid; |
28 | td_err_e err; | |
29 | ||
76a50749 UD |
30 | LOG ("td_thr_getgregs"); |
31 | ||
7d9d8bd1 RM |
32 | if (th->th_unique == 0) |
33 | /* Special case for the main thread before initialization. */ | |
34 | return ps_lgetregs (th->th_ta_p->ph, ps_getpid (th->th_ta_p->ph), | |
35 | regset) != PS_OK ? TD_ERR : TD_OK; | |
36 | ||
76a50749 | 37 | /* We have to get the state and the PID for this thread. */ |
7f08f55a RM |
38 | err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread, |
39 | cancelhandling, 0); | |
40 | if (err != TD_OK) | |
41 | return err; | |
76a50749 UD |
42 | |
43 | /* If the thread already terminated we return all zeroes. */ | |
7f08f55a RM |
44 | if (((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK) |
45 | memset (regset, '\0', sizeof (*regset)); | |
76a50749 UD |
46 | /* Otherwise get the register content through the callback. */ |
47 | else | |
48 | { | |
7f08f55a RM |
49 | err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0); |
50 | if (err != TD_OK) | |
51 | return err; | |
76a50749 | 52 | |
7f08f55a | 53 | if (ps_lgetregs (th->th_ta_p->ph, (uintptr_t) tid, regset) != PS_OK) |
76a50749 UD |
54 | return TD_ERR; |
55 | } | |
56 | ||
57 | return TD_OK; | |
58 | } |