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24 ****************************************************************************/
25
26 #include "disassemblerlines.h"
27 #include "sourceutils.h"
28
29 #include <QDebug>
30 #include <QFile>
31 #include <QTextStream>
32
33 namespace Debugger {
34 namespace Internal {
35
fromString(const QString & unparsed)36 void DisassemblerLine::fromString(const QString &unparsed)
37 {
38 int pos = -1;
39 for (int i = 0; i != unparsed.size(); ++i) {
40 const uint c = unparsed.at(i).unicode();
41 if (c == ' ' || c == ':' || c == '\t') {
42 pos = i;
43 break;
44 }
45 }
46
47 // Mac gdb has an overflow reporting 64bit addresses causing the instruction
48 // to follow the last digit "0x000000013fff4810mov 1,1". Truncate here.
49 if (pos > 19 && unparsed.mid(3, 16).toULongLong())
50 pos = 19;
51
52 QString addr = unparsed.left(pos);
53 // MSVC 64bit: Remove 64bit separator 00000000`00a45000'.
54 if (addr.size() >= 9 && addr.at(8) == '`')
55 addr.remove(8, 1);
56
57 if (addr.endsWith(':')) // clang
58 addr.chop(1);
59 if (addr.startsWith("0x"))
60 addr.remove(0, 2);
61 bool ok = false;
62 address = addr.toULongLong(&ok, 16);
63 if (ok)
64 data = unparsed.mid(pos + 1);
65 else
66 data = unparsed;
67 }
68
startAddress() const69 quint64 DisassemblerLines::startAddress() const
70 {
71 for (int i = 0; i < m_data.size(); ++i)
72 if (m_data.at(i).address)
73 return m_data.at(i).address;
74 return 0;
75 }
76
endAddress() const77 quint64 DisassemblerLines::endAddress() const
78 {
79 for (int i = m_data.size()- 1; i >= 0; --i)
80 if (m_data.at(i).address)
81 return m_data.at(i).address;
82 return 0;
83 }
84
lineForAddress(quint64 address) const85 int DisassemblerLines::lineForAddress(quint64 address) const
86 {
87 return m_rowCache.value(address);
88 }
89
coversAddress(quint64 address) const90 bool DisassemblerLines::coversAddress(quint64 address) const
91 {
92 return m_rowCache.value(address) != 0;
93 }
94
appendLine(const DisassemblerLine & dl)95 void DisassemblerLines::appendLine(const DisassemblerLine &dl)
96 {
97 m_data.append(dl);
98 m_rowCache[dl.address] = m_data.size();
99 }
100
101 // Append source line: Cache current file.
102 struct SourceFileCache
103 {
104 QString fileName;
105 QStringList lines;
106 };
107
Q_GLOBAL_STATIC(SourceFileCache,sourceFileCache)108 Q_GLOBAL_STATIC(SourceFileCache, sourceFileCache)
109
110 void DisassemblerLines::appendSourceLine(const QString &fileName, int lineNumber)
111 {
112
113 if (fileName.isEmpty() || lineNumber == 0)
114 return;
115 lineNumber--; // Fix 1..n range.
116 SourceFileCache *cache = sourceFileCache();
117 if (fileName != cache->fileName) {
118 cache->fileName = fileName;
119 cache->lines.clear();
120 QFile file(fileName);
121 if (file.open(QIODevice::ReadOnly)) {
122 QTextStream ts(&file);
123 cache->lines = ts.readAll().split('\n');
124 }
125 }
126 if (lineNumber >= cache->lines.size())
127 return;
128 DisassemblerLine dl;
129 dl.lineNumber = lineNumber;
130 dl.data = cache->lines.at(lineNumber);
131 appendLine(dl);
132 }
133
appendComment(const QString & line)134 void DisassemblerLines::appendComment(const QString &line)
135 {
136 DisassemblerLine dl;
137 dl.data = line;
138 appendLine(dl);
139 }
140
appendUnparsed(const QString & unparsed)141 void DisassemblerLines::appendUnparsed(const QString &unparsed)
142 {
143 QString line = unparsed.trimmed();
144 if (line.isEmpty())
145 return;
146 if (line.startsWith("Current language:"))
147 return;
148 if (line.startsWith("Dump of assembler")) {
149 m_lastFunction.clear();
150 return;
151 }
152 if (line.startsWith("The current source"))
153 return;
154 if (line.startsWith("End of assembler")) {
155 m_lastFunction.clear();
156 return;
157 }
158 if (line.startsWith("=> "))
159 line = line.mid(3);
160 if (line.startsWith("0x")) {
161 // Address line. Split at the tab.
162 int tab1 = line.indexOf('\t');
163 if (tab1 == -1) {
164 appendComment(line);
165 return;
166 }
167 int tab2 = line.indexOf('\t', tab1 + 1);
168 if (tab2 == -1)
169 tab2 = tab1;
170 QString address = line.left(tab1);
171 if (address.endsWith(':'))
172 address.chop(1);
173 int pos1 = address.indexOf('<') + 1;
174 DisassemblerLine dl;
175 dl.bytes = line.mid(tab1, tab2 - tab1).trimmed();
176 m_bytesLength = qMax(m_bytesLength, tab2 - tab1);
177 dl.data = line.mid(tab2).trimmed();
178 if (pos1 && address.indexOf("<UNDEFINED> instruction:") == -1) {
179 if (address.endsWith('>'))
180 address.chop(1);
181 int pos2 = address.indexOf('+', pos1);
182 if (pos1 < pos2) {
183 QString function = address.mid(pos1, pos2 - pos1);
184 if (function != m_lastFunction) {
185 DisassemblerLine dl;
186 dl.data = "Function: " + function;
187 m_data.append(dl);
188 m_lastFunction = function;
189 }
190 }
191 dl.address = address.left(pos1 - 1).toULongLong(nullptr, 0);
192 dl.function = m_lastFunction;
193 dl.offset = address.mid(pos2).toUInt();
194 } else {
195 // Plain data like "0x0000cd64:\tadd\tlr, pc, lr\n"
196 dl.address = address.toULongLong(nullptr, 0);
197 dl.function = m_lastFunction;
198 dl.offset = 0;
199 }
200 m_rowCache[dl.address] = m_data.size() + 1;
201 m_data.append(dl);
202 } else {
203 // Comment or code line.
204 QTextStream ts(&line);
205 DisassemblerLine dl;
206 ts >> dl.lineNumber;
207 dl.data = line.mid(ts.pos());
208 m_data.append(dl);
209 }
210 }
211
toString(int maxOp) const212 QString DisassemblerLine::toString(int maxOp) const
213 {
214 const QString someSpace = " ";
215 QString str;
216 if (isAssembler()) {
217 if (address)
218 str += QString("0x%1 ").arg(address, 0, 16);
219 if (offset)
220 str += QString("<+%1> ").arg(offset, 5);
221 else
222 str += " ";
223 str += QString(" %1 ").arg(bytes);
224 str += QString(maxOp - bytes.size(), ' ');
225 str += data;
226 } else if (isCode()) {
227 str += someSpace;
228 str += QString::number(lineNumber);
229 if (hunk)
230 str += QString(" [%1]").arg(hunk);
231 else
232 str += " ";
233 str += data;
234 } else {
235 str += someSpace;
236 str += data;
237 }
238 return str;
239 }
240
toString() const241 QString DisassemblerLines::toString() const
242 {
243 QString str;
244 for (int i = 0, n = size(); i != n; ++i) {
245 str += m_data.at(i).toString(m_bytesLength);
246 str += '\n';
247 }
248 return str;
249 }
250
251 } // namespace Internal
252 } // namespace Debugger
253