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             : #ifdef HAVE_CONFIG_H
      30             : # include <config.h>
      31             : #endif
      32             : 
      33             : #include "libdwflP.h"
      34             : 
      35             : bool
      36         825 : dwfl_thread_state_registers (Dwfl_Thread *thread, int firstreg,
      37             :                              unsigned nregs, const Dwarf_Word *regs)
      38             : {
      39         825 :   Dwfl_Frame *state = thread->unwound;
      40         825 :   assert (state && state->unwound == NULL);
      41         825 :   assert (state->initial_frame);
      42        1738 :   for (unsigned regno = firstreg; regno < firstreg + nregs; regno++)
      43         921 :     if (! __libdwfl_frame_reg_set (state, regno, regs[regno - firstreg]))
      44             :       {
      45           8 :         __libdwfl_seterrno (DWFL_E_INVALID_REGISTER);
      46           8 :         return false;
      47             :       }
      48             :   return true;
      49             : }
      50             : INTDEF(dwfl_thread_state_registers)
      51             : 
      52             : void
      53          14 : dwfl_thread_state_register_pc (Dwfl_Thread *thread, Dwarf_Word pc)
      54             : {
      55          14 :   Dwfl_Frame *state = thread->unwound;
      56          14 :   assert (state && state->unwound == NULL);
      57          14 :   assert (state->initial_frame);
      58          14 :   state->pc = pc;
      59          14 :   state->pc_state = DWFL_FRAME_STATE_PC_SET;
      60          14 : }
      61             : INTDEF(dwfl_thread_state_register_pc)