Line data Source code
1 : /* Get Dwarf Frame state from modules present in DWFL.
2 : Copyright (C) 2013 Red Hat, Inc.
3 : This file is part of elfutils.
4 :
5 : This file is free software; you can redistribute it and/or modify
6 : it under the terms of either
7 :
8 : * the GNU Lesser General Public License as published by the Free
9 : Software Foundation; either version 3 of the License, or (at
10 : your option) any later version
11 :
12 : or
13 :
14 : * the GNU General Public License as published by the Free
15 : Software Foundation; either version 2 of the License, or (at
16 : your option) any later version
17 :
18 : or both in parallel, as here.
19 :
20 : elfutils is distributed in the hope that it will be useful, but
21 : WITHOUT ANY WARRANTY; without even the implied warranty of
22 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 : General Public License for more details.
24 :
25 : You should have received copies of the GNU General Public License and
26 : the GNU Lesser General Public License along with this program. If
27 : not, see <http://www.gnu.org/licenses/>. */
28 :
29 : #include "libdwflP.h"
30 :
31 : bool
32 577 : dwfl_thread_state_registers (Dwfl_Thread *thread, int firstreg,
33 : unsigned nregs, const Dwarf_Word *regs)
34 : {
35 577 : Dwfl_Frame *state = thread->unwound;
36 577 : assert (state && state->unwound == NULL);
37 577 : assert (state->initial_frame);
38 1246 : for (unsigned regno = firstreg; regno < firstreg + nregs; regno++)
39 673 : if (! __libdwfl_frame_reg_set (state, regno, regs[regno - firstreg]))
40 : {
41 4 : __libdwfl_seterrno (DWFL_E_INVALID_REGISTER);
42 4 : return false;
43 : }
44 : return true;
45 : }
46 : INTDEF(dwfl_thread_state_registers)
47 :
48 : void
49 10 : dwfl_thread_state_register_pc (Dwfl_Thread *thread, Dwarf_Word pc)
50 : {
51 10 : Dwfl_Frame *state = thread->unwound;
52 10 : assert (state && state->unwound == NULL);
53 10 : assert (state->initial_frame);
54 10 : state->pc = pc;
55 10 : state->pc_state = DWFL_FRAME_STATE_PC_SET;
56 10 : }
57 : INTDEF(dwfl_thread_state_register_pc)
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