Differential D27041 Diff 74710 src/parser/backtraceparsergdb.cpp

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src/parser/backtraceparsergdb.cpp

Show All 13 Lines1/*
14 You should have received a copy of the GNU General Public License along 14​ You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc., 15​ with this program; if not, write to the Free Software Foundation, Inc.,
16 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 16​ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17*/ 17​*/
18#include "backtraceparsergdb.h" 18​#include "backtraceparsergdb.h"
19#include "backtraceparser_p.h" 19​#include "backtraceparser_p.h"
20#include "drkonqi_parser_debug.h" 20​#include "drkonqi_parser_debug.h"
21#include <QRegExp> 21​#include <QRegExp>
22​#include <QFileInfo>
22 23​
23//BEGIN BacktraceLineGdb 24​//BEGIN BacktraceLineGdb
24 25​
25class BacktraceLineGdb : public BacktraceLine ​
26{ ​
27public: ​
28 BacktraceLineGdb(const QString & line); ​
29 ​
30private: ​
31 void parse(); ​
32 void rate(); ​
33}; ​
34 ​
35BacktraceLineGdb::BacktraceLineGdb(const QString & lineStr) 26​BacktraceLineGdb::BacktraceLineGdb(const QString & lineStr)
36 : BacktraceLine() 27​ : BacktraceLine()
37{ 28​{
38 d->m_line = lineStr; 29​ d->m_line = lineStr;
39 d->m_functionName = QLatin1String("??"); 30​ d->m_functionName = QLatin1String("??");
40 parse(); 31​ parse();
41 if (d->m_type == StackFrame) { 32​ if (d->m_type == StackFrame) {
42 rate(); 33​ rate();
Show All 12 Lines44 } else if (d->m_line == QLatin1String("[KCrash Handler]\n")) {
55 return; 46​ return;
56 } else if (d->m_line.contains(QLatin1String("<signal handler called>"))) { 47​ } else if (d->m_line.contains(QLatin1String("<signal handler called>"))) {
57 d->m_type = SignalHandlerStart; 48​ d->m_type = SignalHandlerStart;
58 return; 49​ return;
59 } 50​ }
60 51​
61 regExp.setPattern(QStringLiteral("^#([0-9]+)" //matches the stack frame number, ex. "#0" 52​ regExp.setPattern(QStringLiteral("^#([0-9]+)" //matches the stack frame number, ex. "#0"
62 "[\\s]+(0x[0-9a-f]+[\\s]+in[\\s]+)?" // matches " 0x0000dead in " (optionally) 53​ "[\\s]+(0x[0-9a-f]+[\\s]+in[\\s]+)?" // matches " 0x0000dead in " (optionally)
63 "((\\(anonymous namespace\\)::)?[^\\(]+)" //matches the function name 54​ "((\\(anonymous namespace\\)::)?[^\\(]+)?" //matches the function name
64 //(anything except left parenthesis, which is the start of the arguments section) 55​ //(anything except left parenthesis, which is the start of the arguments section)
65 //and optionally the prefix "(anonymous namespace)::" 56​ //and optionally the prefix "(anonymous namespace)::"
66 "(\\(.*\\))?" //matches the function arguments 57​ "(\\(.*\\))?" //matches the function arguments
67 //(when the app doesn't have debugging symbols) 58​ //(when the app doesn't have debugging symbols)
68 "[\\s]+(const[\\s]+)?" //matches a traling const, if it exists 59​ "[\\s]+(const[\\s]+)?" //matches a traling const, if it exists
69 "\\(.*\\)" //matches the arguments of the function with their values 60​ "\\(.*\\)" //matches the arguments of the function with their values
70 //(when the app has debugging symbols) 61​ //(when the app has debugging symbols)
71 "([\\s]+" //beginning of optional file information 62​ "([\\s]+" //beginning of optional file information
72 "(from|at)[\\s]+" //matches "from " or "at " 63​ "(from|at)[\\s]+" //matches "from " or "at "
73 "(.+)" //matches the filename (source file or shared library file) 64​ "(.+)" //matches the filename (source file or shared library file)
74 ")?\n$")); //matches trailing newline. 65​ ")?\n$")); //matches trailing newline.
75 //the )? at the end closes the parenthesis before [\\s]+(from|at) and 66​ //the )? at the end closes the parenthesis before [\\s]+(from|at) and
76 //notes that the whole expression from there is optional. 67​ //notes that the whole expression from there is optional.
77 68​
78 if (regExp.exactMatch(d->m_line)) { 69​ if (regExp.exactMatch(d->m_line)) {
79 d->m_type = StackFrame; 70​ d->m_type = StackFrame;
80 d->m_stackFrameNumber = regExp.cap(1).toInt(); 71​ d->m_stackFrameNumber = regExp.cap(1).toInt();
81 d->m_functionName = regExp.cap(3).trimmed(); 72​ d->m_functionName = regExp.cap(3).trimmed();
82 73​
83 if (!regExp.cap(7).isEmpty()) { //we have file information (stuff after from|at) 74​ if (!regExp.cap(7).isEmpty()) { //we have file information (stuff after from|at)
84 if (regExp.cap(8) == QLatin1String("at")) { //'at' means we have a source file 75​ bool file = regExp.cap(8) == QLatin1String("at"); //'at' means we have a source file (likely)
76​ // Gdb isn't entirely consistent here, when it uses 'from' it always refers to a library, but
77​ // sometimes the stack can resolve to a library even when it uses the 'at' key word.
78​ // This specifically seems to happen when a frame has no function name.
79​ const QString path = regExp.cap(9);
80​ file = file && !QFileInfo(path).completeSuffix().contains(QLatin1String(".so"));
81​ if (file) {
85 d->m_file = regExp.cap(9); 82​ d->m_file = regExp.cap(9);
86 } else { //'from' means we have a library 83​ } else { //'from' means we have a library
87 d->m_library = regExp.cap(9); 84​ d->m_library = regExp.cap(9);
88 } 85​ }
89 } 86​ }
90 87​
91 qCDebug(DRKONQI_PARSER_LOG) << d->m_stackFrameNumber << d->m_functionName << d->m_file << d->m_library; 88​ qCDebug(DRKONQI_PARSER_LOG) << d->m_stackFrameNumber << d->m_functionName << d->m_file << d->m_library;
92 return; 89​ return;
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