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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Process memory map. */
#ifndef _CORKSCREW_MAP_INFO_H
#define _CORKSCREW_MAP_INFO_H
#include <sys/types.h>
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct map_info {
struct map_info* next;
uintptr_t start;
uintptr_t end;
bool is_readable;
bool is_writable;
bool is_executable;
void* data; // arbitrary data associated with the map by the user, initially NULL
char name[];
} map_info_t;
/* Loads memory map from /proc/<tid>/maps. */
map_info_t* load_map_info_list(pid_t tid);
/* Frees memory map. */
void free_map_info_list(map_info_t* milist);
/* Finds the memory map that contains the specified address. */
const map_info_t* find_map_info(const map_info_t* milist, uintptr_t addr);
/* Returns true if the addr is in a readable map. */
bool is_readable_map(const map_info_t* milist, uintptr_t addr);
/* Returns true if the addr is in a writable map. */
bool is_writable_map(const map_info_t* milist, uintptr_t addr);
/* Returns true if the addr is in an executable map. */
bool is_executable_map(const map_info_t* milist, uintptr_t addr);
/* Acquires a reference to the memory map for this process.
* The result is cached and refreshed automatically.
* Make sure to release the map info when done. */
map_info_t* acquire_my_map_info_list();
/* Releases a reference to the map info for this process that was
* previous acquired using acquire_my_map_info_list(). */
void release_my_map_info_list(map_info_t* milist);
/* Flushes the cached memory map so the next call to
* acquire_my_map_info_list() gets fresh data. */
void flush_my_map_info_list();
#ifdef __cplusplus
}
#endif
#endif // _CORKSCREW_MAP_INFO_H
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