d75d4bea54
Reread /proc/pid/maps on demand in case a new library has been loaded. Change-Id: Iac8109b3e6a07bf02c38300b21eecabf4bcd54df
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef DEBUG_MALLOC_MAPDATA_H
|
|
#define DEBUG_MALLOC_MAPDATA_H
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
#include <mutex>
|
|
#include <string>
|
|
#include <set>
|
|
|
|
#include <private/bionic_macros.h>
|
|
|
|
struct MapEntry {
|
|
MapEntry(uintptr_t start, uintptr_t end, uintptr_t offset, const char* name, size_t name_len)
|
|
: start(start), end(end), offset(offset), name(name, name_len) {}
|
|
|
|
MapEntry(uintptr_t pc) : start(pc), end(pc) {}
|
|
|
|
uintptr_t start;
|
|
uintptr_t end;
|
|
uintptr_t offset;
|
|
uintptr_t load_base;
|
|
bool load_base_read = false;
|
|
std::string name;
|
|
};
|
|
|
|
|
|
// Ordering comparator that returns equivalence for overlapping entries
|
|
struct compare_entries {
|
|
bool operator()(const MapEntry* a, const MapEntry* b) const {
|
|
return a->end <= b->start;
|
|
}
|
|
};
|
|
|
|
class MapData {
|
|
public:
|
|
MapData() = default;
|
|
~MapData();
|
|
|
|
const MapEntry* find(uintptr_t pc, uintptr_t* rel_pc = nullptr);
|
|
|
|
private:
|
|
bool ReadMaps();
|
|
|
|
std::mutex m_;
|
|
std::set<MapEntry*, compare_entries> entries_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(MapData);
|
|
};
|
|
|
|
#endif // DEBUG_MALLOC_MAPDATA_H
|