Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1 | /** |
| 2 | * @file symbol_sort.cpp |
| 3 | * Sorting symbols |
| 4 | * |
| 5 | * @remark Copyright 2002, 2003 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author Philippe Elie |
| 9 | * @author John Levon |
| 10 | */ |
| 11 | |
| 12 | #include "symbol_sort.h" |
| 13 | #include "symbol_functors.h" |
| 14 | |
| 15 | #include "name_storage.h" |
| 16 | #include "op_exception.h" |
| 17 | |
| 18 | #include <algorithm> |
| 19 | #include <sstream> |
| 20 | |
| 21 | using namespace std; |
| 22 | |
| 23 | namespace { |
| 24 | |
| 25 | bool long_filenames; |
| 26 | |
| 27 | int image_compare(image_name_id l, image_name_id r) |
| 28 | { |
| 29 | if (long_filenames) |
| 30 | return image_names.name(l).compare(image_names.name(r)); |
| 31 | return image_names.basename(l).compare(image_names.basename(r)); |
| 32 | } |
| 33 | |
| 34 | |
| 35 | int debug_compare(debug_name_id l, debug_name_id r) |
| 36 | { |
| 37 | if (long_filenames) |
| 38 | return debug_names.name(l).compare(debug_names.name(r)); |
| 39 | return debug_names.basename(l).compare(debug_names.basename(r)); |
| 40 | } |
| 41 | |
| 42 | |
| 43 | int compare_by(sort_options::sort_order order, |
| 44 | symbol_entry const & lhs, symbol_entry const & rhs) |
| 45 | { |
| 46 | switch (order) { |
| 47 | case sort_options::sample: |
| 48 | if (lhs.sample.counts[0] < rhs.sample.counts[0]) |
| 49 | return 1; |
| 50 | if (lhs.sample.counts[0] > rhs.sample.counts[0]) |
| 51 | return -1; |
| 52 | return 0; |
| 53 | |
| 54 | case sort_options::symbol: |
| 55 | return symbol_names.demangle(lhs.name).compare( |
| 56 | symbol_names.demangle(rhs.name)); |
| 57 | |
| 58 | case sort_options::image: |
| 59 | return image_compare(lhs.image_name, rhs.image_name); |
| 60 | |
| 61 | case sort_options::app_name: |
| 62 | return image_compare(lhs.app_name, rhs.app_name); |
| 63 | |
| 64 | case sort_options::vma: |
| 65 | if (lhs.sample.vma < rhs.sample.vma) |
| 66 | return -1; |
| 67 | if (lhs.sample.vma > rhs.sample.vma) |
| 68 | return 1; |
| 69 | return 0; |
| 70 | |
| 71 | case sort_options::debug: { |
| 72 | file_location const & f1 = lhs.sample.file_loc; |
| 73 | file_location const & f2 = rhs.sample.file_loc; |
| 74 | int ret = debug_compare(f1.filename, f2.filename); |
| 75 | if (ret == 0) |
| 76 | ret = f1.linenr - f2.linenr; |
| 77 | return ret; |
| 78 | } |
| 79 | |
| 80 | default: { |
| 81 | // static_cast<> to shut up g++ 2.91.66 which warn |
| 82 | // about ambiguity between <<(int) and <<(long int) |
| 83 | ostringstream os; |
| 84 | os << "compare_by(): unknown sort option: " |
| 85 | << static_cast<int>(order) << endl; |
| 86 | throw op_fatal_error(os.str()); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | struct symbol_compare { |
| 95 | symbol_compare(vector<sort_options::sort_order> const & order, |
| 96 | bool reverse) |
| 97 | : compare_order(order), reverse_sort(reverse) {} |
| 98 | |
| 99 | bool operator()(symbol_entry const * lhs, |
| 100 | symbol_entry const * rhs) const { |
| 101 | return operator()(*lhs, *rhs); |
| 102 | } |
| 103 | |
| 104 | bool operator()(symbol_entry const & lhs, |
| 105 | symbol_entry const & rhs) const; |
| 106 | |
| 107 | protected: |
| 108 | vector<sort_options::sort_order> const & compare_order; |
| 109 | bool reverse_sort; |
| 110 | }; |
| 111 | |
| 112 | |
| 113 | bool symbol_compare::operator()(symbol_entry const & lhs, |
| 114 | symbol_entry const & rhs) const |
| 115 | { |
| 116 | for (size_t i = 0; i < compare_order.size(); ++i) { |
| 117 | int ret = compare_by(compare_order[i], lhs, rhs); |
| 118 | |
| 119 | if (reverse_sort) |
| 120 | ret = -ret; |
| 121 | if (ret != 0) |
| 122 | return ret < 0; |
| 123 | } |
| 124 | return false; |
| 125 | } |
| 126 | |
| 127 | |
| 128 | } // anonymous namespace |
| 129 | |
| 130 | |
| 131 | void sort_options:: |
| 132 | sort(symbol_collection & syms, bool reverse_sort, bool lf) const |
| 133 | { |
| 134 | long_filenames = lf; |
| 135 | |
| 136 | vector<sort_order> sort_option(options); |
| 137 | for (sort_order cur = first; cur != last; cur = sort_order(cur + 1)) { |
| 138 | if (find(sort_option.begin(), sort_option.end(), cur) == |
| 139 | sort_option.end()) |
| 140 | sort_option.push_back(cur); |
| 141 | } |
| 142 | |
| 143 | stable_sort(syms.begin(), syms.end(), |
| 144 | symbol_compare(sort_option, reverse_sort)); |
| 145 | } |
| 146 | |
| 147 | |
| 148 | void sort_options:: |
| 149 | sort(diff_collection & syms, bool reverse_sort, bool lf) const |
| 150 | { |
| 151 | long_filenames = lf; |
| 152 | |
| 153 | vector<sort_order> sort_option(options); |
| 154 | for (sort_order cur = first; cur != last; cur = sort_order(cur + 1)) { |
| 155 | if (find(sort_option.begin(), sort_option.end(), cur) == |
| 156 | sort_option.end()) |
| 157 | sort_option.push_back(cur); |
| 158 | } |
| 159 | |
| 160 | stable_sort(syms.begin(), syms.end(), |
| 161 | symbol_compare(sort_option, reverse_sort)); |
| 162 | } |
| 163 | |
| 164 | |
| 165 | void sort_options::add_sort_option(string const & name) |
| 166 | { |
| 167 | if (name == "vma") { |
| 168 | options.push_back(vma); |
| 169 | } else if (name == "sample") { |
| 170 | options.push_back(sample); |
| 171 | } else if (name == "symbol") { |
| 172 | options.push_back(symbol); |
| 173 | } else if (name == "debug") { |
| 174 | options.push_back(debug); |
| 175 | } else if (name == "image") { |
| 176 | options.push_back(image); |
| 177 | } else if (name == "app-name") { |
| 178 | options.push_back(app_name); |
| 179 | } else { |
| 180 | ostringstream os; |
| 181 | os << "unknown sort option: " << name << endl; |
| 182 | throw op_fatal_error(os.str()); |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | void sort_options::add_sort_option(sort_options::sort_order order) |
| 188 | { |
| 189 | options.push_back(order); |
| 190 | } |