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65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* Get return address register value for frame.
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Copyright (C) 2013 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libdwflP.h"
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bool
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dwfl_frame_pc (Dwfl_Frame *state, Dwarf_Addr *pc, bool *isactivation)
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{
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assert (state->pc_state == DWFL_FRAME_STATE_PC_SET);
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*pc = state->pc;
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ebl_normalize_pc (state->thread->process->ebl, pc);
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if (isactivation)
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{
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/* Bottom frame? */
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if (state->initial_frame)
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*isactivation = true;
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/* *ISACTIVATION is logical union of whether current or previous frame
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state is SIGNAL_FRAME. */
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else if (state->signal_frame)
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*isactivation = true;
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else
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{
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/* If the previous frame has unwound unsuccessfully just silently do
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not consider it could be a SIGNAL_FRAME. */
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__libdwfl_frame_unwind (state);
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if (state->unwound == NULL
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|| state->unwound->pc_state != DWFL_FRAME_STATE_PC_SET)
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*isactivation = false;
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else
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*isactivation = state->unwound->signal_frame;
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}
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}
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return true;
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}
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INTDEF (dwfl_frame_pc)
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