mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:54:41 +08:00
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/* This file is part of the program psim.
|
|
|
|
Copyright (C) 1994-1995,1997, Andrew Cagney <cagney@highland.com.au>
|
|
|
|
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/>.
|
|
|
|
*/
|
|
|
|
|
|
#ifndef _CAP_C_
|
|
#define _CAP_C_
|
|
|
|
#include "cap.h"
|
|
|
|
typedef struct _cap_mapping cap_mapping;
|
|
struct _cap_mapping {
|
|
unsigned_cell external;
|
|
void *internal;
|
|
cap_mapping *next;
|
|
};
|
|
|
|
struct _cap {
|
|
int nr_mappings;
|
|
cap_mapping *mappings;
|
|
};
|
|
|
|
INLINE_CAP\
|
|
(cap *)
|
|
cap_create(const char *key)
|
|
{
|
|
return ZALLOC(cap);
|
|
}
|
|
|
|
INLINE_CAP\
|
|
(void)
|
|
cap_init(cap *db)
|
|
{
|
|
cap_mapping *current_map = db->mappings;
|
|
if (current_map != NULL) {
|
|
db->nr_mappings = db->mappings->external;
|
|
/* verify that the mappings that were not removed are in sequence
|
|
down to nr 1 */
|
|
while (current_map->next != NULL) {
|
|
if (current_map->external != current_map->next->external + 1)
|
|
error("cap: cap database possibly corrupt");
|
|
current_map = current_map->next;
|
|
}
|
|
ASSERT(current_map->next == NULL);
|
|
if (current_map->external != 1)
|
|
error("cap: cap database possibly currupt");
|
|
}
|
|
else {
|
|
db->nr_mappings = 0;
|
|
}
|
|
}
|
|
|
|
INLINE_CAP\
|
|
(void *)
|
|
cap_internal(cap *db,
|
|
signed_cell external)
|
|
{
|
|
cap_mapping *current_map = db->mappings;
|
|
while (current_map != NULL) {
|
|
if (current_map->external == external)
|
|
return current_map->internal;
|
|
current_map = current_map->next;
|
|
}
|
|
return (void*)0;
|
|
}
|
|
|
|
INLINE_CAP\
|
|
(signed_cell)
|
|
cap_external(cap *db,
|
|
void *internal)
|
|
{
|
|
cap_mapping *current_map = db->mappings;
|
|
while (current_map != NULL) {
|
|
if (current_map->internal == internal)
|
|
return current_map->external;
|
|
current_map = current_map->next;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
INLINE_CAP\
|
|
(void)
|
|
cap_add(cap *db,
|
|
void *internal)
|
|
{
|
|
if (cap_external(db, internal) != 0) {
|
|
error("cap: attempting to add an object already in the data base");
|
|
}
|
|
else {
|
|
/* insert at the front making things in decending order */
|
|
cap_mapping *new_map = ZALLOC(cap_mapping);
|
|
new_map->next = db->mappings;
|
|
new_map->internal = internal;
|
|
db->nr_mappings += 1;
|
|
new_map->external = db->nr_mappings;
|
|
db->mappings = new_map;
|
|
}
|
|
}
|
|
|
|
INLINE_CAP\
|
|
(void)
|
|
cap_remove(cap *db,
|
|
void *internal)
|
|
{
|
|
cap_mapping **current_map = &db->mappings;
|
|
while (*current_map != NULL) {
|
|
if ((*current_map)->internal == internal) {
|
|
cap_mapping *delete = *current_map;
|
|
*current_map = delete->next;
|
|
free(delete);
|
|
return;
|
|
}
|
|
current_map = &(*current_map)->next;
|
|
}
|
|
error("cap: attempt to remove nonexistant internal object");
|
|
}
|
|
|
|
#endif
|