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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef BASE_DEBUG_PROC_MAPS_LINUX_H_ |
| 6 #define BASE_DEBUG_PROC_MAPS_LINUX_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/base_export.h" |
| 12 #include "base/basictypes.h" |
| 13 |
| 14 namespace base { |
| 15 namespace debug { |
| 16 |
| 17 // Describes a region of mapped memory and the path of the file mapped. |
| 18 struct MappedMemoryRegion { |
| 19 enum Permission { |
| 20 READ = 1 << 0, |
| 21 WRITE = 1 << 1, |
| 22 EXECUTE = 1 << 2, |
| 23 PRIVATE = 1 << 3, // If set, region is private, otherwise it is shared. |
| 24 }; |
| 25 |
| 26 // The address range [start,end) of mapped memory. |
| 27 uintptr_t start; |
| 28 uintptr_t end; |
| 29 |
| 30 // Byte offset into |path| of the range mapped into memory. |
| 31 unsigned long long offset; |
| 32 |
| 33 // Bitmask of read/write/execute/private/shared permissions. |
| 34 uint8 permissions; |
| 35 |
| 36 // Name of the file mapped into memory. |
| 37 // |
| 38 // NOTE: path names aren't guaranteed to point at valid files. For example, |
| 39 // "[heap]" and "[stack]" are used to represent the location of the process' |
| 40 // heap and stack, respectively. |
| 41 std::string path; |
| 42 }; |
| 43 |
| 44 // Reads the data from /proc/self/maps and stores the result in |proc_maps|. |
| 45 // Returns true if successful, false otherwise. |
| 46 BASE_EXPORT bool ReadProcMaps(std::string* proc_maps); |
| 47 |
| 48 // Parses /proc/<pid>/maps input data and stores in |regions|. Returns true |
| 49 // and updates |regions| if and only if all of |input| was successfully parsed. |
| 50 BASE_EXPORT bool ParseProcMaps(const std::string& input, |
| 51 std::vector<MappedMemoryRegion>* regions); |
| 52 |
| 53 } // namespace debug |
| 54 } // namespace base |
| 55 |
| 56 #endif // BASE_DEBUG_PROC_MAPS_LINUX_H_ |
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