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/* Frame info pointer
Copyright (C) 2022-2023 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame-info.h"
#include "frame.h"
/* See frame-info-ptr.h. */
intrusive_list<frame_info_ptr> frame_info_ptr::frame_list;
/* See frame-info-ptr.h. */
void
frame_info_ptr::prepare_reinflate ()
{
m_cached_level = frame_relative_level (*this);
if (m_cached_level != 0)
m_cached_id = get_frame_id (*this);
}
/* See frame-info-ptr.h. */
void
frame_info_ptr::reinflate ()
{
/* Ensure we have a valid frame level (sentinel frame or above), indicating
prepare_reinflate was called. */
gdb_assert (m_cached_level >= -1);
if (m_ptr != nullptr)
{
/* The frame_info wasn't invalidated, no need to reinflate. */
return;
}
/* Frame #0 needs special handling, see comment in select_frame. */
if (m_cached_level == 0)
m_ptr = get_current_frame ().get ();
else
{
gdb_assert (frame_id_p (m_cached_id));
m_ptr = frame_find_by_id (m_cached_id).get ();
}
gdb_assert (m_ptr != nullptr);
}
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