1 // Copyright (c) 2006-2008 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 // This file/namespace contains utility functions for gathering 6 // information about PE (Portable Executable) headers within 7 // images (dll's / exe's ) 8 9 #ifndef BASE_IMAGE_UTIL_H_ 10 #define BASE_IMAGE_UTIL_H_ 11 12 #include <windows.h> 13 #include <vector> 14 15 #include "base/basictypes.h" 16 17 namespace image_util { 18 19 // Contains both the PE section name (.text, .reloc etc) and its size. 20 struct ImageSectionData { ImageSectionDataImageSectionData21 ImageSectionData(const std::string& section_name, size_t section_size) 22 : name(section_name), 23 size_in_bytes(section_size) { 24 } 25 26 std::string name; 27 size_t size_in_bytes; 28 }; 29 30 typedef std::vector<ImageSectionData> ImageSectionsData; 31 32 // Provides image statistics for modules of a specified process, or for the 33 // specified process' own executable file. To use, invoke CreateImageMetrics() 34 // to get an instance for a specified process, then access the information via 35 // methods. 36 class ImageMetrics { 37 public: 38 // Creates an ImageMetrics instance for given process owned by 39 // the caller. 40 explicit ImageMetrics(HANDLE process); 41 ~ImageMetrics(); 42 43 // Fills a vector of ImageSectionsData containing name/size info 44 // for every section found in the specified dll's PE section table. 45 // The DLL must be loaded by the process associated with this ImageMetrics 46 // instance. 47 bool GetDllImageSectionData(const std::string& loaded_dll_name, 48 ImageSectionsData* section_sizes); 49 50 // Fills a vector if ImageSectionsData containing name/size info 51 // for every section found in the executable file of the process 52 // associated with this ImageMetrics instance. 53 bool GetProcessImageSectionData(ImageSectionsData* section_sizes); 54 55 private: 56 // Helper for GetDllImageSectionData and GetProcessImageSectionData 57 bool GetImageSectionSizes(char* qualified_path, ImageSectionsData* result); 58 59 HANDLE process_; 60 61 DISALLOW_COPY_AND_ASSIGN(ImageMetrics); 62 }; 63 64 } // namespace image_util 65 66 #endif // BASE_IMAGE_UTIL_H_ 67