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