1 | |
---|
2 | /*! @file CoverageMapBase.cc |
---|
3 | * @brief CoverageMapBase Implementation |
---|
4 | * |
---|
5 | * This file contains the implementation of the functions |
---|
6 | * which provide a base level of functionality of a CoverageMap. |
---|
7 | */ |
---|
8 | |
---|
9 | #include <limits.h> |
---|
10 | |
---|
11 | #include <iostream> |
---|
12 | #include <iomanip> |
---|
13 | |
---|
14 | #include <rld.h> |
---|
15 | |
---|
16 | #include "CoverageMapBase.h" |
---|
17 | |
---|
18 | namespace Coverage { |
---|
19 | |
---|
20 | AddressInfo::AddressInfo () |
---|
21 | : isStartOfInstruction (false), |
---|
22 | wasExecuted (false), |
---|
23 | isBranch (false), |
---|
24 | isNop (false), |
---|
25 | wasTaken (false), |
---|
26 | wasNotTaken (false) |
---|
27 | { |
---|
28 | } |
---|
29 | |
---|
30 | AddressRange::AddressRange () |
---|
31 | : lowAddress(0), |
---|
32 | highAddress(0) |
---|
33 | { |
---|
34 | } |
---|
35 | |
---|
36 | AddressRange::AddressRange (const std::string& name, |
---|
37 | uint32_t lowAddress, |
---|
38 | uint32_t highAddress) |
---|
39 | : fileName (name), |
---|
40 | lowAddress (lowAddress), |
---|
41 | highAddress (highAddress) |
---|
42 | { |
---|
43 | info.resize( size( ) ); |
---|
44 | } |
---|
45 | |
---|
46 | size_t AddressRange::size () const |
---|
47 | { |
---|
48 | return highAddress - lowAddress + 1; |
---|
49 | } |
---|
50 | |
---|
51 | bool AddressRange::inside (uint32_t address) const |
---|
52 | { |
---|
53 | return address >= lowAddress && address <= highAddress; |
---|
54 | } |
---|
55 | |
---|
56 | AddressInfo& AddressRange::get (uint32_t address) |
---|
57 | { |
---|
58 | if ( !inside( address ) ) |
---|
59 | throw rld::error( "address outside range", "AddressRange::get" ); |
---|
60 | size_t slot = address - lowAddress; |
---|
61 | if (slot >= info.size ()) |
---|
62 | throw rld::error( "address slot not found", "AddressRange::get" ); |
---|
63 | return info[slot]; |
---|
64 | } |
---|
65 | |
---|
66 | const AddressInfo& AddressRange::get (uint32_t address) const |
---|
67 | { |
---|
68 | if ( !inside( address ) ) |
---|
69 | throw rld::error( "address outside range", "AddressRange::get" ); |
---|
70 | size_t slot = address - lowAddress; |
---|
71 | if (slot >= info.size ()) |
---|
72 | throw rld::error( "address slot not found", "AddressRange::get" ); |
---|
73 | return info[slot]; |
---|
74 | } |
---|
75 | |
---|
76 | void AddressRange::dump (std::ostream& out, bool show_slots) const |
---|
77 | { |
---|
78 | out << std::hex << std::setfill('0') |
---|
79 | << "Address range: low = " << std::setw(8) << lowAddress |
---|
80 | << " high = " << std::setw(8) << highAddress |
---|
81 | << std::endl; |
---|
82 | if (show_slots) { |
---|
83 | size_t slot = 0; |
---|
84 | for (auto& i : info) { |
---|
85 | out << std::hex << std::setfill('0') |
---|
86 | << "0x" << std::setw(8) << slot++ + lowAddress |
---|
87 | << "- isStartOfInstruction:" |
---|
88 | << (char*) (i.isStartOfInstruction ? "yes" : "no") |
---|
89 | << " wasExecuted:" |
---|
90 | << (char*) (i.wasExecuted ? "yes" : "no") |
---|
91 | << std::endl |
---|
92 | << " isBranch:" |
---|
93 | << (char*) (i.isBranch ? "yes" : "no") |
---|
94 | << " wasTaken:" |
---|
95 | << (char*) (i.wasTaken ? "yes" : "no") |
---|
96 | << " wasNotTaken:" |
---|
97 | << (char*) (i.wasNotTaken ? "yes" : "no") |
---|
98 | << std::dec << std::setfill(' ') |
---|
99 | << std::endl; |
---|
100 | } |
---|
101 | } |
---|
102 | } |
---|
103 | |
---|
104 | CoverageMapBase::CoverageMapBase( |
---|
105 | const std::string& exefileName, |
---|
106 | uint32_t low, |
---|
107 | uint32_t high |
---|
108 | ) : exefileName (exefileName) |
---|
109 | { |
---|
110 | Ranges.push_back( AddressRange( exefileName, low, high ) ); |
---|
111 | } |
---|
112 | |
---|
113 | CoverageMapBase::~CoverageMapBase() |
---|
114 | { |
---|
115 | } |
---|
116 | |
---|
117 | void CoverageMapBase::Add( uint32_t low, uint32_t high ) |
---|
118 | { |
---|
119 | Ranges.push_back( AddressRange( exefileName, low, high ) ); |
---|
120 | } |
---|
121 | |
---|
122 | bool CoverageMapBase::validAddress( const uint32_t address ) const |
---|
123 | { |
---|
124 | for ( auto r : Ranges ) |
---|
125 | if (r.inside( address )) |
---|
126 | return true; |
---|
127 | return false; |
---|
128 | } |
---|
129 | |
---|
130 | void CoverageMapBase::dump( void ) const |
---|
131 | { |
---|
132 | std::cerr << "Coverage Map Contents:" << std::endl; |
---|
133 | for (auto& r : Ranges) |
---|
134 | r.dump( std::cerr ); |
---|
135 | } |
---|
136 | |
---|
137 | uint32_t CoverageMapBase::getSize() const |
---|
138 | { |
---|
139 | size_t size = 0; |
---|
140 | for (auto& r : Ranges) |
---|
141 | size += r.size (); |
---|
142 | return size; |
---|
143 | } |
---|
144 | |
---|
145 | bool CoverageMapBase::getBeginningOfInstruction( |
---|
146 | uint32_t address, |
---|
147 | uint32_t* beginning |
---|
148 | ) const |
---|
149 | { |
---|
150 | bool status = false; |
---|
151 | uint32_t start; |
---|
152 | AddressRange range; |
---|
153 | |
---|
154 | status = getRange( address, range ); |
---|
155 | if ( status != true ) |
---|
156 | return status; |
---|
157 | |
---|
158 | start = address; |
---|
159 | |
---|
160 | while (start >= range.lowAddress ) { |
---|
161 | if (isStartOfInstruction( start - range.lowAddress )) { |
---|
162 | *beginning = start; |
---|
163 | status = true; |
---|
164 | break; |
---|
165 | } |
---|
166 | else |
---|
167 | start--; |
---|
168 | } |
---|
169 | |
---|
170 | return status; |
---|
171 | } |
---|
172 | |
---|
173 | int32_t CoverageMapBase::getFirstLowAddress() const |
---|
174 | { |
---|
175 | /* |
---|
176 | * This is broken, do not trust it. |
---|
177 | */ |
---|
178 | return Ranges.front().lowAddress; |
---|
179 | } |
---|
180 | |
---|
181 | bool CoverageMapBase::getRange( uint32_t address, AddressRange& range ) const |
---|
182 | { |
---|
183 | for ( auto r : Ranges ) { |
---|
184 | if (r.inside( address )) { |
---|
185 | range.lowAddress = r.lowAddress; |
---|
186 | range.highAddress = r.highAddress; |
---|
187 | range.info = r.info; |
---|
188 | return true; |
---|
189 | } |
---|
190 | } |
---|
191 | return false; |
---|
192 | } |
---|
193 | |
---|
194 | AddressInfo& CoverageMapBase::getInfo( uint32_t address ) |
---|
195 | { |
---|
196 | for ( auto& r : Ranges ) |
---|
197 | if (r.inside( address )) |
---|
198 | return r.get( address ); |
---|
199 | throw rld::error( "address out of bounds", "CoverageMapBase::getInfo" ); |
---|
200 | } |
---|
201 | |
---|
202 | const AddressInfo& CoverageMapBase::getInfo( uint32_t address ) const |
---|
203 | { |
---|
204 | for ( auto& r : Ranges ) |
---|
205 | if (r.inside( address )) |
---|
206 | return r.get( address ); |
---|
207 | throw rld::error( "address out of bounds", "CoverageMapBase::getInfo" ); |
---|
208 | } |
---|
209 | |
---|
210 | void CoverageMapBase::setIsStartOfInstruction( |
---|
211 | uint32_t address |
---|
212 | ) |
---|
213 | { |
---|
214 | if ( validAddress( address ) ) |
---|
215 | getInfo( address ).isStartOfInstruction = true; |
---|
216 | } |
---|
217 | |
---|
218 | bool CoverageMapBase::isStartOfInstruction( uint32_t address ) const |
---|
219 | { |
---|
220 | if ( !validAddress( address ) ) |
---|
221 | return false; |
---|
222 | return getInfo( address ).isStartOfInstruction; |
---|
223 | } |
---|
224 | |
---|
225 | void CoverageMapBase::setWasExecuted( uint32_t address ) |
---|
226 | { |
---|
227 | if ( validAddress( address ) ) |
---|
228 | getInfo( address ).wasExecuted += 1; |
---|
229 | } |
---|
230 | |
---|
231 | void CoverageMapBase::sumWasExecuted( uint32_t address, uint32_t addition) |
---|
232 | { |
---|
233 | if ( validAddress( address ) ) |
---|
234 | getInfo( address ).wasExecuted += addition; |
---|
235 | } |
---|
236 | |
---|
237 | bool CoverageMapBase::wasExecuted( uint32_t address ) const |
---|
238 | { |
---|
239 | bool result = false; |
---|
240 | if ( validAddress( address ) && (getInfo( address ).wasExecuted > 0)) |
---|
241 | result = true; |
---|
242 | return result; |
---|
243 | } |
---|
244 | |
---|
245 | uint32_t CoverageMapBase::getWasExecuted( uint32_t address ) const |
---|
246 | { |
---|
247 | if ( !validAddress( address ) ) |
---|
248 | return 0; |
---|
249 | return getInfo( address ).wasExecuted; |
---|
250 | } |
---|
251 | |
---|
252 | void CoverageMapBase::setIsBranch( |
---|
253 | uint32_t address |
---|
254 | ) |
---|
255 | { |
---|
256 | if ( validAddress( address ) ) |
---|
257 | getInfo( address ).isBranch = true; |
---|
258 | } |
---|
259 | |
---|
260 | bool CoverageMapBase::isNop( uint32_t address ) const |
---|
261 | { |
---|
262 | if ( !validAddress( address ) ) |
---|
263 | return false; |
---|
264 | return getInfo( address ).isNop; |
---|
265 | } |
---|
266 | |
---|
267 | void CoverageMapBase::setIsNop( |
---|
268 | uint32_t address |
---|
269 | ) |
---|
270 | { |
---|
271 | if ( !validAddress( address ) ) |
---|
272 | return; |
---|
273 | getInfo( address ).isNop = true; |
---|
274 | } |
---|
275 | |
---|
276 | bool CoverageMapBase::isBranch( uint32_t address ) const |
---|
277 | { |
---|
278 | if ( !validAddress( address ) ) |
---|
279 | return false; |
---|
280 | return getInfo( address ).isBranch; |
---|
281 | } |
---|
282 | |
---|
283 | void CoverageMapBase::setWasTaken( |
---|
284 | uint32_t address |
---|
285 | ) |
---|
286 | { |
---|
287 | if ( !validAddress( address ) ) |
---|
288 | return; |
---|
289 | getInfo( address ).wasTaken += 1; |
---|
290 | } |
---|
291 | |
---|
292 | void CoverageMapBase::setWasNotTaken( |
---|
293 | uint32_t address |
---|
294 | ) |
---|
295 | { |
---|
296 | if ( !validAddress( address ) ) |
---|
297 | return; |
---|
298 | getInfo( address ).wasNotTaken += 1; |
---|
299 | } |
---|
300 | |
---|
301 | bool CoverageMapBase::wasAlwaysTaken( uint32_t address ) const |
---|
302 | { |
---|
303 | if ( !validAddress( address ) ) |
---|
304 | return false; |
---|
305 | const AddressInfo& info = getInfo( address ); |
---|
306 | return info.wasTaken && !info.wasNotTaken; |
---|
307 | } |
---|
308 | |
---|
309 | bool CoverageMapBase::wasNeverTaken( uint32_t address ) const |
---|
310 | { |
---|
311 | if ( !validAddress( address ) ) |
---|
312 | return false; |
---|
313 | const AddressInfo& info = getInfo( address ); |
---|
314 | return !info.wasTaken && info.wasNotTaken; |
---|
315 | } |
---|
316 | |
---|
317 | bool CoverageMapBase::wasNotTaken( uint32_t address ) const |
---|
318 | { |
---|
319 | bool result = true; |
---|
320 | if ( !validAddress( address ) ) |
---|
321 | result = false; |
---|
322 | else if ( getInfo( address ).wasNotTaken <= 0 ) |
---|
323 | result = false; |
---|
324 | return result; |
---|
325 | } |
---|
326 | |
---|
327 | void CoverageMapBase::sumWasNotTaken( uint32_t address, uint32_t addition) |
---|
328 | { |
---|
329 | if ( validAddress( address ) ) |
---|
330 | getInfo( address ).wasNotTaken += addition; |
---|
331 | } |
---|
332 | |
---|
333 | uint32_t CoverageMapBase::getWasNotTaken( uint32_t address ) const |
---|
334 | { |
---|
335 | if ( !validAddress( address ) ) |
---|
336 | return 0; |
---|
337 | return getInfo( address ).wasNotTaken; |
---|
338 | } |
---|
339 | |
---|
340 | bool CoverageMapBase::wasTaken( uint32_t address ) const |
---|
341 | { |
---|
342 | bool result = true; |
---|
343 | if ( !validAddress( address ) ) |
---|
344 | result = false; |
---|
345 | else if ( getInfo( address ).wasTaken <= 0 ) |
---|
346 | result = false; |
---|
347 | return result; |
---|
348 | } |
---|
349 | |
---|
350 | void CoverageMapBase::sumWasTaken( uint32_t address, uint32_t addition) |
---|
351 | { |
---|
352 | if ( !validAddress( address ) ) |
---|
353 | return; |
---|
354 | getInfo( address ).wasTaken += addition; |
---|
355 | } |
---|
356 | |
---|
357 | uint32_t CoverageMapBase::getWasTaken( uint32_t address ) const |
---|
358 | { |
---|
359 | if ( !validAddress( address ) ) |
---|
360 | return 0; |
---|
361 | return getInfo( address ).wasTaken; |
---|
362 | } |
---|
363 | } |
---|