/* The common simulator framework for GDB, the GNU Debugger.
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/* The common simulator framework for GDB, the GNU Debugger.
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Copyright 2002, 2007, 2008 Free Software Foundation, Inc.
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Copyright 2002, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Andrew Cagney and Red Hat.
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Contributed by Andrew Cagney and Red Hat.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "hw-main.h"
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#include "hw-main.h"
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#include "hw-base.h"
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#include "hw-base.h"
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struct hw_handle_mapping {
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struct hw_handle_mapping {
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cell_word external;
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cell_word external;
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struct hw *phandle;
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struct hw *phandle;
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struct hw_instance *ihandle;
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struct hw_instance *ihandle;
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struct hw_handle_mapping *next;
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struct hw_handle_mapping *next;
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};
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};
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struct hw_handle_data {
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struct hw_handle_data {
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int nr_mappings;
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int nr_mappings;
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struct hw_handle_mapping *mappings;
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struct hw_handle_mapping *mappings;
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};
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};
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void
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void
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create_hw_handle_data (struct hw *hw)
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create_hw_handle_data (struct hw *hw)
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{
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{
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if (hw_parent (hw) == NULL)
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if (hw_parent (hw) == NULL)
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{
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{
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hw->handles_of_hw = HW_ZALLOC (hw, struct hw_handle_data);
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hw->handles_of_hw = HW_ZALLOC (hw, struct hw_handle_data);
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}
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}
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else
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else
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{
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{
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hw->handles_of_hw = hw_root (hw)->handles_of_hw;
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hw->handles_of_hw = hw_root (hw)->handles_of_hw;
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}
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}
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}
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}
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void
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void
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delete_hw_handle_data (struct hw *hw)
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delete_hw_handle_data (struct hw *hw)
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{
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{
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/* NULL */
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/* NULL */
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}
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}
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#if 0
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#if 0
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void
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void
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hw_handle_init (struct hw *hw)
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hw_handle_init (struct hw *hw)
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{
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{
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struct hw_handle_mapping *current_map = db->mappings;
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struct hw_handle_mapping *current_map = db->mappings;
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if (current_map != NULL)
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if (current_map != NULL)
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{
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{
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db->nr_mappings = db->mappings->external;
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db->nr_mappings = db->mappings->external;
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/* verify that the mappings that were not removed are in
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/* verify that the mappings that were not removed are in
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sequence down to nr 1 */
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sequence down to nr 1 */
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while (current_map->next != NULL)
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while (current_map->next != NULL)
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{
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{
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if (current_map->external != current_map->next->external + 1)
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if (current_map->external != current_map->next->external + 1)
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error ("hw_handle: hw_handle database possibly corrupt");
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error ("hw_handle: hw_handle database possibly corrupt");
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current_map = current_map->next;
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current_map = current_map->next;
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}
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}
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ASSERT (current_map->next == NULL);
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ASSERT (current_map->next == NULL);
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if (current_map->external != 1)
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if (current_map->external != 1)
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error ("hw_handle: hw_handle database possibly corrupt");
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error ("hw_handle: hw_handle database possibly corrupt");
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}
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}
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else
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else
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{
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{
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db->nr_mappings = 0;
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db->nr_mappings = 0;
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}
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}
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}
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}
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#endif
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#endif
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struct hw_instance *
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struct hw_instance *
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hw_handle_ihandle2 (struct hw *hw,
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hw_handle_ihandle2 (struct hw *hw,
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cell_word external)
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cell_word external)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping *current_map = db->mappings;
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struct hw_handle_mapping *current_map = db->mappings;
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while (current_map != NULL)
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while (current_map != NULL)
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{
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{
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if (current_map->external == external)
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if (current_map->external == external)
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return current_map->ihandle;
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return current_map->ihandle;
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current_map = current_map->next;
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current_map = current_map->next;
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}
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}
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return (void*)0;
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return (void*)0;
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}
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}
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struct hw *
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struct hw *
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hw_handle_phandle2 (struct hw *hw,
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hw_handle_phandle2 (struct hw *hw,
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cell_word external)
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cell_word external)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping *current_map = db->mappings;
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struct hw_handle_mapping *current_map = db->mappings;
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while (current_map != NULL)
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while (current_map != NULL)
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{
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{
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if (current_map->external == external)
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if (current_map->external == external)
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return current_map->phandle;
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return current_map->phandle;
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current_map = current_map->next;
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current_map = current_map->next;
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}
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}
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return (void*)0;
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return (void*)0;
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}
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}
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cell_word
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cell_word
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hw_handle_2ihandle (struct hw *hw,
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hw_handle_2ihandle (struct hw *hw,
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struct hw_instance *internal)
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struct hw_instance *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping *current_map = db->mappings;
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struct hw_handle_mapping *current_map = db->mappings;
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while (current_map != NULL)
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while (current_map != NULL)
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{
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{
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if (current_map->ihandle == internal)
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if (current_map->ihandle == internal)
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return current_map->external;
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return current_map->external;
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current_map = current_map->next;
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current_map = current_map->next;
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}
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}
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return 0;
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return 0;
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}
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}
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cell_word
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cell_word
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hw_handle_2phandle (struct hw *hw,
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hw_handle_2phandle (struct hw *hw,
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struct hw *internal)
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struct hw *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping *current_map = db->mappings;
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struct hw_handle_mapping *current_map = db->mappings;
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while (current_map != NULL)
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while (current_map != NULL)
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{
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{
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if (current_map->phandle == internal)
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if (current_map->phandle == internal)
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return current_map->external;
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return current_map->external;
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current_map = current_map->next;
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current_map = current_map->next;
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}
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}
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return 0;
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return 0;
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}
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}
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void
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void
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hw_handle_add_ihandle (struct hw *hw,
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hw_handle_add_ihandle (struct hw *hw,
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struct hw_instance *internal)
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struct hw_instance *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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if (hw_handle_2ihandle (hw, internal) != 0)
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if (hw_handle_2ihandle (hw, internal) != 0)
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{
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{
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hw_abort (hw, "attempting to add an ihandle already in the data base");
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hw_abort (hw, "attempting to add an ihandle already in the data base");
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}
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}
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else
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else
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{
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{
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/* insert at the front making things in decending order */
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/* insert at the front making things in decending order */
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struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
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struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
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new_map->next = db->mappings;
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new_map->next = db->mappings;
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new_map->ihandle = internal;
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new_map->ihandle = internal;
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db->nr_mappings += 1;
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db->nr_mappings += 1;
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new_map->external = db->nr_mappings;
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new_map->external = db->nr_mappings;
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db->mappings = new_map;
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db->mappings = new_map;
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}
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}
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}
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}
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void
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void
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hw_handle_add_phandle (struct hw *hw,
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hw_handle_add_phandle (struct hw *hw,
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struct hw *internal)
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struct hw *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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if (hw_handle_2phandle (hw, internal) != 0)
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if (hw_handle_2phandle (hw, internal) != 0)
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{
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{
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hw_abort (hw, "attempting to add a phandle already in the data base");
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hw_abort (hw, "attempting to add a phandle already in the data base");
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}
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}
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else
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else
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{
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{
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/* insert at the front making things in decending order */
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/* insert at the front making things in decending order */
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struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
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struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
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new_map->next = db->mappings;
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new_map->next = db->mappings;
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new_map->phandle = internal;
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new_map->phandle = internal;
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db->nr_mappings += 1;
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db->nr_mappings += 1;
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new_map->external = db->nr_mappings;
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new_map->external = db->nr_mappings;
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db->mappings = new_map;
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db->mappings = new_map;
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}
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}
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}
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}
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void
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void
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hw_handle_remove_ihandle (struct hw *hw,
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hw_handle_remove_ihandle (struct hw *hw,
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struct hw_instance *internal)
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struct hw_instance *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping **current_map = &db->mappings;
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struct hw_handle_mapping **current_map = &db->mappings;
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while (*current_map != NULL)
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while (*current_map != NULL)
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{
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{
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if ((*current_map)->ihandle == internal)
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if ((*current_map)->ihandle == internal)
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{
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{
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struct hw_handle_mapping *delete = *current_map;
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struct hw_handle_mapping *delete = *current_map;
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*current_map = delete->next;
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*current_map = delete->next;
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zfree (delete);
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zfree (delete);
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return;
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return;
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}
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}
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current_map = &(*current_map)->next;
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current_map = &(*current_map)->next;
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}
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}
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hw_abort (hw, "attempt to remove nonexistant ihandle");
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hw_abort (hw, "attempt to remove nonexistant ihandle");
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}
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}
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void
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void
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hw_handle_remove_phandle (struct hw *hw,
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hw_handle_remove_phandle (struct hw *hw,
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struct hw *internal)
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struct hw *internal)
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{
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{
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_data *db = hw->handles_of_hw;
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struct hw_handle_mapping **current_map = &db->mappings;
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struct hw_handle_mapping **current_map = &db->mappings;
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while (*current_map != NULL)
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while (*current_map != NULL)
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{
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{
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if ((*current_map)->phandle == internal)
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if ((*current_map)->phandle == internal)
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{
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{
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struct hw_handle_mapping *delete = *current_map;
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struct hw_handle_mapping *delete = *current_map;
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*current_map = delete->next;
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*current_map = delete->next;
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zfree (delete);
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zfree (delete);
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return;
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return;
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}
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}
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current_map = &(*current_map)->next;
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current_map = &(*current_map)->next;
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}
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}
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hw_abort (hw, "attempt to remove nonexistant phandle");
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hw_abort (hw, "attempt to remove nonexistant phandle");
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}
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}
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