1 /* 2 * Copyright 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __VTS_SYSFUZZER_LIBMEASUREMENT_GCDA_PARSER_H__ 18 #define __VTS_SYSFUZZER_LIBMEASUREMENT_GCDA_PARSER_H__ 19 20 #include <iostream> 21 #include <string> 22 #include <vector> 23 24 #include "GcdaFile.h" 25 26 using namespace std; 27 28 namespace android { 29 namespace vts { 30 31 // Parses a GCDA file and extracts raw coverage info. 32 class GcdaRawCoverageParser { 33 public: GcdaRawCoverageParser(const char * filename)34 GcdaRawCoverageParser(const char* filename) 35 : filename_(filename), 36 gcda_file_(new GcdaFile(filename_)) {} 37 ~GcdaRawCoverageParser()38 virtual ~GcdaRawCoverageParser() {} 39 40 // Parses a given file and returns a vector which contains IDs of raw 41 // coverage measurement units (e.g., basic blocks). 42 vector<unsigned> Parse(); 43 44 protected: 45 // Parses the GCOV magic number. 46 bool ParseMagic(); 47 48 // Parses the GCOV file body. 49 void ParseBody(); 50 51 // Processes tag for functions. TagFunction(unsigned,unsigned length)52 void TagFunction(unsigned /*tag*/, unsigned length) { 53 /* unsigned long pos = */ gcda_file_->Position(); 54 55 if (length) { 56 gcda_file_->ReadUnsigned(); // ident %u 57 unsigned lineno_checksum = gcda_file_->ReadUnsigned(); 58 result.push_back(lineno_checksum); 59 gcda_file_->ReadUnsigned(); // cfg_checksum 0x%08x 60 } 61 } 62 63 // Processes tag for blocks. TagBlocks(unsigned,unsigned length)64 void TagBlocks(unsigned /*tag*/, unsigned length) { 65 unsigned n_blocks = GCOV_TAG_BLOCKS_NUM(length); 66 cout << __func__ << ": " << n_blocks << " blocks" << endl; 67 } 68 69 // Processes tag for arcs. TagArcs(unsigned,unsigned length)70 void TagArcs(unsigned /*tag*/, unsigned length) { 71 unsigned n_arcs = GCOV_TAG_ARCS_NUM(length); 72 cout << __func__ << ": " << n_arcs << " arcs" << endl; 73 } 74 75 // Processes tag for lines. TagLines(unsigned,unsigned)76 void TagLines(unsigned /*tag*/, unsigned /*length*/) { 77 cout << __func__ << endl; 78 } 79 80 private: 81 // the name of a target file. 82 const string filename_; 83 84 // global GcovFile data structure. 85 GcdaFile* gcda_file_; 86 87 // vector containing the parsed, raw coverage data. 88 vector<unsigned> result; 89 }; 90 91 } // namespace vts 92 } // namespace android 93 94 #endif 95