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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_DEBUG_PROC_MAPS_LINUX_H_
#define BASE_DEBUG_PROC_MAPS_LINUX_H_
#include <string>
#include <vector>
#include "base/base_export.h"
#include "base/basictypes.h"
namespace base {
namespace debug {
// Describes a region of mapped memory and the path of the file mapped.
struct MappedMemoryRegion {
enum Permission {
READ = 1 << 0,
WRITE = 1 << 1,
EXECUTE = 1 << 2,
PRIVATE = 1 << 3, // If set, region is private, otherwise it is shared.
};
// The address range [start,end) of mapped memory.
uintptr_t start;
uintptr_t end;
// Byte offset into |path| of the range mapped into memory.
unsigned long long offset;
// Bitmask of read/write/execute/private/shared permissions.
uint8 permissions;
// Name of the file mapped into memory.
//
// NOTE: path names aren't guaranteed to point at valid files. For example,
// "[heap]" and "[stack]" are used to represent the location of the process'
// heap and stack, respectively.
std::string path;
};
// Reads the data from /proc/self/maps and stores the result in |proc_maps|.
// Returns true if successful, false otherwise.
BASE_EXPORT bool ReadProcMaps(std::string* proc_maps);
// Parses /proc/<pid>/maps input data and stores in |regions|. Returns true
// and updates |regions| if and only if all of |input| was successfully parsed.
BASE_EXPORT bool ParseProcMaps(const std::string& input,
std::vector<MappedMemoryRegion>* regions);
} // namespace debug
} // namespace base
#endif // BASE_DEBUG_PROC_MAPS_LINUX_H_
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