3 // Copyright by Johannes Sixt
4 // This file is under GPL, the GNU General Public Licence
9 #include <qstringlist.h>
10 #include <klocale.h> /* i18n */
12 #include <stdlib.h> /* strtol, atoi */
13 #include <string.h> /* strcpy */
21 static void skipString(const char*& p
);
22 static void skipNested(const char*& s
, char opening
, char closing
);
23 static VarTree
* parseVar(const char*& s
);
24 static bool parseName(const char*& s
, QString
& name
, VarTree::NameKind
& kind
);
25 static bool parseValue(const char*& s
, VarTree
* variable
);
26 static bool parseNested(const char*& s
, VarTree
* variable
);
27 static bool parseVarSeq(const char*& s
, VarTree
* variable
);
28 static bool parseValueSeq(const char*& s
, VarTree
* variable
);
30 #define PROMPT "(kdbg)"
32 #define PROMPT_LAST_CHAR ')' /* needed when searching for prompt string */
35 // TODO: make this cmd info stuff non-static to allow multiple
36 // simultaneous gdbs to run!
40 const char* fmt
; /* format string */
42 argNone
, argString
, argNum
,
43 argStringNum
, argNumString
,
49 // This is how the QString data print statement generally looks like.
50 // It is set by KDebugger via setPrintQStringDataCmd().
52 static const char printQStringStructFmt
[] =
53 // if the string data is junk, fail early
54 "print ($qstrunicode=($qstrdata=(%s))->unicode)?"
55 // print an array of shorts
56 "(*(unsigned short*)$qstrunicode)@"
58 "(($qstrlen=(unsigned int)($qstrdata->len))>100?100:$qstrlen)"
59 // if unicode data is 0, report a special value
62 static const char printQStringStructFmt
[] = "print (0?\"%s\":$kdbgundef)\n";
65 * The following array of commands must be sorted by the DC* values,
66 * because they are used as indices.
68 static GdbCmdInfo cmds
[] = {
69 { DCinitialize
, "", GdbCmdInfo::argNone
},
70 { DCtty
, "tty %s\n", GdbCmdInfo::argString
},
71 { DCexecutable
, "file \"%s\"\n", GdbCmdInfo::argString
},
72 { DCtargetremote
, "target remote %s\n", GdbCmdInfo::argString
},
73 { DCcorefile
, "core-file %s\n", GdbCmdInfo::argString
},
74 { DCattach
, "attach %s\n", GdbCmdInfo::argString
},
75 { DCinfolinemain
, "kdbg_infolinemain\n", GdbCmdInfo::argNone
},
76 { DCinfolocals
, "kdbg__alllocals\n", GdbCmdInfo::argNone
},
77 { DCinforegisters
, "info all-registers\n", GdbCmdInfo::argNone
},
78 { DCexamine
, "x %s %s\n", GdbCmdInfo::argString2
},
79 { DCinfoline
, "info line %s:%d\n", GdbCmdInfo::argStringNum
},
80 { DCdisassemble
, "disassemble %s %s\n", GdbCmdInfo::argString2
},
81 { DCsetargs
, "set args %s\n", GdbCmdInfo::argString
},
82 { DCsetenv
, "set env %s %s\n", GdbCmdInfo::argString2
},
83 { DCunsetenv
, "unset env %s\n", GdbCmdInfo::argString
},
84 { DCsetoption
, "setoption %s %d\n", GdbCmdInfo::argStringNum
},
85 { DCcd
, "cd %s\n", GdbCmdInfo::argString
},
86 { DCbt
, "bt\n", GdbCmdInfo::argNone
},
87 { DCrun
, "run\n", GdbCmdInfo::argNone
},
88 { DCcont
, "cont\n", GdbCmdInfo::argNone
},
89 { DCstep
, "step\n", GdbCmdInfo::argNone
},
90 { DCstepi
, "stepi\n", GdbCmdInfo::argNone
},
91 { DCnext
, "next\n", GdbCmdInfo::argNone
},
92 { DCnexti
, "nexti\n", GdbCmdInfo::argNone
},
93 { DCfinish
, "finish\n", GdbCmdInfo::argNone
},
94 { DCuntil
, "until %s:%d\n", GdbCmdInfo::argStringNum
},
95 { DCkill
, "kill\n", GdbCmdInfo::argNone
},
96 { DCbreaktext
, "break %s\n", GdbCmdInfo::argString
},
97 { DCbreakline
, "break %s:%d\n", GdbCmdInfo::argStringNum
},
98 { DCtbreakline
, "tbreak %s:%d\n", GdbCmdInfo::argStringNum
},
99 { DCbreakaddr
, "break *%s\n", GdbCmdInfo::argString
},
100 { DCtbreakaddr
, "tbreak *%s\n", GdbCmdInfo::argString
},
101 { DCwatchpoint
, "watch %s\n", GdbCmdInfo::argString
},
102 { DCdelete
, "delete %d\n", GdbCmdInfo::argNum
},
103 { DCenable
, "enable %d\n", GdbCmdInfo::argNum
},
104 { DCdisable
, "disable %d\n", GdbCmdInfo::argNum
},
105 { DCprint
, "print %s\n", GdbCmdInfo::argString
},
106 { DCprintDeref
, "print *(%s)\n", GdbCmdInfo::argString
},
107 { DCprintStruct
, "print %s\n", GdbCmdInfo::argString
},
108 { DCprintQStringStruct
, printQStringStructFmt
, GdbCmdInfo::argString
},
109 { DCframe
, "frame %d\n", GdbCmdInfo::argNum
},
110 { DCfindType
, "whatis %s\n", GdbCmdInfo::argString
},
111 { DCinfosharedlib
, "info sharedlibrary\n", GdbCmdInfo::argNone
},
112 { DCthread
, "thread %d\n", GdbCmdInfo::argNum
},
113 { DCinfothreads
, "info threads\n", GdbCmdInfo::argNone
},
114 { DCinfobreak
, "info breakpoints\n", GdbCmdInfo::argNone
},
115 { DCcondition
, "condition %d %s\n", GdbCmdInfo::argNumString
},
116 { DCsetpc
, "set variable $pc=%s\n", GdbCmdInfo::argString
},
117 { DCignore
, "ignore %d %d\n", GdbCmdInfo::argNum2
},
118 { DCprintWChar
, "print ($s=%s)?*$s@wcslen($s):0x0\n", GdbCmdInfo::argString
},
119 { DCsetvariable
, "set variable %s=%s\n", GdbCmdInfo::argString2
},
122 #define NUM_CMDS (int(sizeof(cmds)/sizeof(cmds[0])))
123 #define MAX_FMTLEN 200
125 GdbDriver::GdbDriver() :
127 m_gdbMajor(4), m_gdbMinor(16)
129 strcpy(m_prompt
, PROMPT
);
130 m_promptMinLen
= PROMPT_LEN
;
131 m_promptLastChar
= PROMPT_LAST_CHAR
;
134 // check command info array
136 for (int i
= 0; i
< NUM_CMDS
; i
++) {
137 // must be indexable by DbgCommand values, i.e. sorted by DbgCommand values
138 assert(i
== cmds
[i
].cmd
);
139 // a format string must be associated
140 assert(cmds
[i
].fmt
!= 0);
141 assert(strlen(cmds
[i
].fmt
) <= MAX_FMTLEN
);
142 // format string must match arg specification
143 switch (cmds
[i
].argsNeeded
) {
144 case GdbCmdInfo::argNone
:
145 assert(strchr(cmds
[i
].fmt
, '%') == 0);
147 case GdbCmdInfo::argString
:
148 perc
= strchr(cmds
[i
].fmt
, '%');
149 assert(perc
!= 0 && perc
[1] == 's');
150 assert(strchr(perc
+2, '%') == 0);
152 case GdbCmdInfo::argNum
:
153 perc
= strchr(cmds
[i
].fmt
, '%');
154 assert(perc
!= 0 && perc
[1] == 'd');
155 assert(strchr(perc
+2, '%') == 0);
157 case GdbCmdInfo::argStringNum
:
158 perc
= strchr(cmds
[i
].fmt
, '%');
159 assert(perc
!= 0 && perc
[1] == 's');
160 perc
= strchr(perc
+2, '%');
161 assert(perc
!= 0 && perc
[1] == 'd');
162 assert(strchr(perc
+2, '%') == 0);
164 case GdbCmdInfo::argNumString
:
165 perc
= strchr(cmds
[i
].fmt
, '%');
166 assert(perc
!= 0 && perc
[1] == 'd');
167 perc
= strchr(perc
+2, '%');
168 assert(perc
!= 0 && perc
[1] == 's');
169 assert(strchr(perc
+2, '%') == 0);
171 case GdbCmdInfo::argString2
:
172 perc
= strchr(cmds
[i
].fmt
, '%');
173 assert(perc
!= 0 && perc
[1] == 's');
174 perc
= strchr(perc
+2, '%');
175 assert(perc
!= 0 && perc
[1] == 's');
176 assert(strchr(perc
+2, '%') == 0);
178 case GdbCmdInfo::argNum2
:
179 perc
= strchr(cmds
[i
].fmt
, '%');
180 assert(perc
!= 0 && perc
[1] == 'd');
181 perc
= strchr(perc
+2, '%');
182 assert(perc
!= 0 && perc
[1] == 'd');
183 assert(strchr(perc
+2, '%') == 0);
187 assert(strlen(printQStringStructFmt
) <= MAX_FMTLEN
);
191 GdbDriver::~GdbDriver()
196 QString
GdbDriver::driverName() const
201 QString
GdbDriver::defaultGdb()
205 " --fullname" /* to get standard file names each time the prog stops */
206 " --nx"; /* do not execute initialization files */
209 QString
GdbDriver::defaultInvocation() const
211 if (m_defaultCmd
.isEmpty()) {
218 QStringList
GdbDriver::boolOptionList() const
221 return QStringList();
224 bool GdbDriver::startup(QString cmdStr
)
226 if (!DebuggerDriver::startup(cmdStr
))
229 static const char gdbInitialize
[] =
231 * Work around buggy gdbs that do command line editing even if they
232 * are not on a tty. The readline library echos every command back
233 * in this case, which is confusing for us.
237 "set print static-members off\n"
238 "set print asm-demangle on\n"
240 * Don't assume that program functions invoked from a watch expression
243 "set unwindonsignal on\n"
245 * Write a short macro that prints all locals: local variables and
246 * function arguments.
248 "define kdbg__alllocals\n"
249 "info locals\n" /* local vars supersede args with same name */
250 "info args\n" /* therefore, arguments must come last */
253 * Work around a bug in gdb-6.3: "info line main" crashes gdb.
255 "define kdbg_infolinemain\n"
259 // change prompt string and synchronize with gdb
260 "set prompt " PROMPT
"\n"
263 executeCmdString(DCinitialize
, gdbInitialize
, false);
265 // assume that QString::null is ok
266 cmds
[DCprintQStringStruct
].fmt
= printQStringStructFmt
;
271 void GdbDriver::commandFinished(CmdQueueItem
* cmd
)
273 // command string must be committed
274 if (!cmd
->m_committed
) {
276 TRACE("calling " + (__PRETTY_FUNCTION__
+ (" with uncommited command:\n\t" +
281 switch (cmd
->m_cmd
) {
283 // get version number from preamble
286 QRegExp
GDBVersion("\\nGDB [0-9]+\\.[0-9]+");
287 int offset
= GDBVersion
.match(m_output
, 0, &len
);
289 char* start
= m_output
+ offset
+ 5; // skip "\nGDB "
291 m_gdbMajor
= strtol(start
, &end
, 10);
292 m_gdbMinor
= strtol(end
+ 1, 0, 10); // skip "."
294 // nothing was parsed
299 // assume some default version (what would make sense?)
303 // use a feasible core-file command
304 if (m_gdbMajor
> 4 || (m_gdbMajor
== 4 && m_gdbMinor
>= 16)) {
305 cmds
[DCcorefile
].fmt
= "target core %s\n";
307 cmds
[DCcorefile
].fmt
= "core-file %s\n";
314 /* ok, the command is ready */
315 emit
commandReceived(cmd
, m_output
);
317 switch (cmd
->m_cmd
) {
336 * The --fullname option makes gdb send a special normalized sequence print
337 * each time the program stops and at some other points. The sequence has
338 * the form "\032\032filename:lineno:charoffset:(beg|middle):address".
340 void GdbDriver::parseMarker()
342 char* startMarker
= strstr(m_output
, "\032\032");
343 if (startMarker
== 0)
346 // extract the marker
348 TRACE(QString("found marker: ") + startMarker
);
349 char* endMarker
= strchr(startMarker
, '\n');
355 // extract filename and line number
356 static QRegExp
MarkerRE(":[0-9]+:[0-9]+:[begmidl]+:0x");
359 int lineNoStart
= MarkerRE
.match(startMarker
, 0, &len
);
360 if (lineNoStart
>= 0) {
361 int lineNo
= atoi(startMarker
+ lineNoStart
+1);
364 const char* addrStart
= startMarker
+ lineNoStart
+ len
- 2;
365 DbgAddr address
= QString(addrStart
).stripWhiteSpace();
367 // now show the window
368 startMarker
[lineNoStart
] = '\0'; /* split off file name */
369 emit
activateFileLine(startMarker
, lineNo
-1, address
);
375 * Escapes characters that might lead to problems when they appear on gdb's
378 static void normalizeStringArg(QString
& arg
)
381 * Remove trailing backslashes. This approach is a little simplistic,
382 * but we know that there is at the moment no case where a trailing
383 * backslash would make sense.
385 while (!arg
.isEmpty() && arg
[arg
.length()-1] == '\\') {
386 arg
= arg
.left(arg
.length()-1);
391 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg
)
393 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
394 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argString
);
396 normalizeStringArg(strArg
);
399 // need the working directory when parsing the output
400 m_programWD
= strArg
;
401 } else if (cmd
== DCsetargs
&& !m_redirect
.isEmpty()) {
403 * Use saved redirection. We prepend it in front of the user's
404 * arguments so that the user can override the redirections.
406 strArg
= m_redirect
+ " " + strArg
;
410 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg
.latin1());
414 QString
GdbDriver::makeCmdString(DbgCommand cmd
, int intArg
)
416 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
417 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNum
);
420 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg
);
424 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg
, int intArg
)
426 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
427 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argStringNum
||
428 cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNumString
||
432 normalizeStringArg(strArg
);
439 * intArg specifies which channels should be redirected to
440 * /dev/null. It is a value or'ed together from RDNstdin,
441 * RDNstdout, RDNstderr. We store the value for a later DCsetargs
444 * Note: We rely on that after the DCtty a DCsetargs will follow,
445 * which will ultimately apply the redirection.
447 static const char* const runRedir
[8] = {
451 "</dev/null >/dev/null",
453 "</dev/null 2>/dev/null",
455 "</dev/null >/dev/null 2>&1"
457 if (strArg
.isEmpty())
458 intArg
= 7; /* failsafe if no tty */
459 m_redirect
= runRedir
[intArg
& 7];
461 return makeCmdString(DCtty
, strArg
); /* note: no problem if strArg empty */
464 if (cmd
== DCexamine
) {
465 // make a format specifier from the intArg
466 static const char size
[16] = {
467 '\0', 'b', 'h', 'w', 'g'
469 static const char format
[16] = {
470 '\0', 'x', 'd', 'u', 'o', 't',
471 'a', 'c', 'f', 's', 'i'
473 assert(MDTsizemask
== 0xf); /* lowest 4 bits */
474 assert(MDTformatmask
== 0xf0); /* next 4 bits */
475 int count
= 16; /* number of entities to print */
476 char sizeSpec
= size
[intArg
& MDTsizemask
];
477 char formatSpec
= format
[(intArg
& MDTformatmask
) >> 4];
478 assert(sizeSpec
!= '\0');
479 assert(formatSpec
!= '\0');
480 // adjust count such that 16 lines are printed
481 switch (intArg
& MDTformatmask
) {
482 case MDTstring
: case MDTinsn
:
483 break; /* no modification needed */
485 // all cases drop through:
486 switch (intArg
& MDTsizemask
) {
498 spec
.sprintf("/%d%c%c", count
, sizeSpec
, formatSpec
);
500 return makeCmdString(DCexamine
, spec
, strArg
);
503 if (cmds
[cmd
].argsNeeded
== GdbCmdInfo::argStringNum
)
505 // line numbers are zero-based
506 if (cmd
== DCuntil
|| cmd
== DCbreakline
||
507 cmd
== DCtbreakline
|| cmd
== DCinfoline
)
511 if (cmd
== DCinfoline
)
513 // must split off file name part
514 int slash
= strArg
.findRev('/');
516 strArg
= strArg
.right(strArg
.length()-slash
-1);
518 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg
.latin1(), intArg
);
522 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg
, strArg
.latin1());
527 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg1
, QString strArg2
)
529 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
530 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argString2
);
532 normalizeStringArg(strArg1
);
533 normalizeStringArg(strArg2
);
536 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg1
.latin1(), strArg2
.latin1());
540 QString
GdbDriver::makeCmdString(DbgCommand cmd
, int intArg1
, int intArg2
)
542 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
543 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNum2
);
546 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg1
, intArg2
);
550 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, bool clearLow
)
552 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
553 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNone
);
556 m_haveCoreFile
= false;
559 return executeCmdString(cmd
, cmds
[cmd
].fmt
, clearLow
);
562 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg
,
565 return executeCmdString(cmd
, makeCmdString(cmd
, strArg
), clearLow
);
568 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, int intArg
,
572 return executeCmdString(cmd
, makeCmdString(cmd
, intArg
), clearLow
);
575 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg
, int intArg
,
578 return executeCmdString(cmd
, makeCmdString(cmd
, strArg
, intArg
), clearLow
);
581 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg1
, QString strArg2
,
584 return executeCmdString(cmd
, makeCmdString(cmd
, strArg1
, strArg2
), clearLow
);
587 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, int intArg1
, int intArg2
,
590 return executeCmdString(cmd
, makeCmdString(cmd
, intArg1
, intArg2
), clearLow
);
593 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QueueMode mode
)
595 return queueCmdString(cmd
, cmds
[cmd
].fmt
, mode
);
598 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg
,
601 return queueCmdString(cmd
, makeCmdString(cmd
, strArg
), mode
);
604 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, int intArg
,
607 return queueCmdString(cmd
, makeCmdString(cmd
, intArg
), mode
);
610 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg
, int intArg
,
613 return queueCmdString(cmd
, makeCmdString(cmd
, strArg
, intArg
), mode
);
616 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg1
, QString strArg2
,
619 return queueCmdString(cmd
, makeCmdString(cmd
, strArg1
, strArg2
), mode
);
622 void GdbDriver::terminate()
628 void GdbDriver::detachAndTerminate()
632 executeCmdString(DCinitialize
, "detach\nquit\n", true);
635 void GdbDriver::interruptInferior()
638 // remove accidentally queued commands
642 static bool isErrorExpr(const char* output
)
645 strncmp(output
, "Cannot access memory at", 23) == 0 ||
646 strncmp(output
, "Attempt to dereference a generic pointer", 40) == 0 ||
647 strncmp(output
, "Attempt to take contents of ", 28) == 0 ||
648 strncmp(output
, "Attempt to use a type name as an expression", 43) == 0 ||
649 strncmp(output
, "There is no member or method named", 34) == 0 ||
650 strncmp(output
, "A parse error in expression", 27) == 0 ||
651 strncmp(output
, "No symbol \"", 11) == 0 ||
652 strncmp(output
, "Internal error: ", 16) == 0;
656 * Returns true if the output is an error message. If wantErrorValue is
657 * true, a new VarTree object is created and filled with the error message.
658 * If there are warnings, they are skipped and output points past the warnings
659 * on return (even if there \e are errors).
661 static bool parseErrorMessage(const char*& output
,
662 VarTree
*& variable
, bool wantErrorValue
)
665 while (strncmp(output
, "warning:", 8) == 0)
667 char* end
= strchr(output
+8, '\n');
669 output
+= strlen(output
);
674 if (isErrorExpr(output
))
676 if (wantErrorValue
) {
677 // put the error message as value in the variable
678 variable
= new VarTree(QString(), VarTree::NKplain
);
679 const char* endMsg
= strchr(output
, '\n');
681 endMsg
= output
+ strlen(output
);
682 variable
->m_value
= QString::fromLatin1(output
, endMsg
-output
);
691 #if QT_VERSION >= 300
701 void GdbDriver::setPrintQStringDataCmd(const char* cmd
)
703 // don't accept the command if it is empty
704 if (cmd
== 0 || *cmd
== '\0')
706 assert(strlen(cmd
) <= MAX_FMTLEN
);
707 cmds
[DCprintQStringStruct
].fmt
= cmd
;
710 VarTree
* GdbDriver::parseQCharArray(const char* output
, bool wantErrorValue
, bool qt3like
)
712 VarTree
* variable
= 0;
715 * Parse off white space. gdb sometimes prints white space first if the
716 * printed array leaded to an error.
718 while (isspace(*output
))
721 // special case: empty string (0 repetitions)
722 if (strncmp(output
, "Invalid number 0 of repetitions", 31) == 0)
724 variable
= new VarTree(QString(), VarTree::NKplain
);
725 variable
->m_value
= "\"\"";
729 // check for error conditions
730 if (parseErrorMessage(output
, variable
, wantErrorValue
))
736 const char* p
= output
;
744 } while (isspace(*p
));
748 // this is the real data
754 enum { wasNothing
, wasChar
, wasRepeat
} lastThing
= wasNothing
;
756 * A matrix for separators between the individual "things"
757 * that are added to the string. The first index is a bool,
758 * the second index is from the enum above.
760 static const char* separator
[2][3] = {
761 { "\"", 0, ", \"" }, /* normal char is added */
762 { "'", "\", '", ", '" } /* repeated char is added */
765 while (isdigit(*p
)) {
768 unsigned short value
= (unsigned short) strtoul(p
, &end
, 0);
770 goto error
; /* huh? no valid digits */
771 // skip separator and search for a repeat count
773 while (isspace(*p
) || *p
== ',')
775 bool repeats
= strncmp(p
, "<repeats ", 9) == 0;
777 const char* start
= p
;
778 p
= strchr(p
+9, '>'); /* search end and advance */
782 repeatCount
= QString::fromLatin1(start
, p
-start
);
783 while (isspace(*p
) || *p
== ',')
786 // p is now at the next char (or the end)
788 // interpret the value as a QChar
789 // TODO: make cross-architecture compatible
795 (unsigned short&)ch
= value
;
799 ch
.setRow(c
.qch
.row
);
800 ch
.setCell(c
.qch
.cell
);
804 // escape a few frequently used characters
805 char escapeCode
= '\0';
806 switch (ch
.latin1()) {
807 case '\n': escapeCode
= 'n'; break;
808 case '\r': escapeCode
= 'r'; break;
809 case '\t': escapeCode
= 't'; break;
810 case '\b': escapeCode
= 'b'; break;
811 case '\"': escapeCode
= '\"'; break;
812 case '\\': escapeCode
= '\\'; break;
813 case '\0': if (value
== 0) { escapeCode
= '0'; } break;
817 result
+= separator
[repeats
][lastThing
];
819 if (escapeCode
!= '\0') {
825 // fixup repeat count and lastThing
828 result
+= repeatCount
;
829 lastThing
= wasRepeat
;
838 if (lastThing
== wasChar
)
842 variable
= new VarTree(QString(), VarTree::NKplain
);
843 variable
->m_value
= result
;
845 else if (strncmp(p
, "true", 4) == 0)
847 variable
= new VarTree(QString(), VarTree::NKplain
);
848 variable
->m_value
= "QString::null";
850 else if (strncmp(p
, "false", 5) == 0)
852 variable
= new VarTree(QString(), VarTree::NKplain
);
853 variable
->m_value
= "(null)";
860 if (wantErrorValue
) {
861 variable
= new VarTree(QString(), VarTree::NKplain
);
862 variable
->m_value
= "internal parse error";
867 static VarTree
* parseVar(const char*& s
)
876 VarTree::NameKind kind
;
877 if (!parseName(p
, name
, kind
)) {
885 TRACE(QString().sprintf("parse error: = not found after %s", (const char*)name
));
888 // skip the '=' and more whitespace
893 VarTree
* variable
= new VarTree(name
, kind
);
895 if (!parseValue(p
, variable
)) {
903 static void skipNested(const char*& s
, char opening
, char closing
)
907 // parse a nested type
911 * Search for next matching `closing' char, skipping nested pairs of
912 * `opening' and `closing'.
914 while (*p
&& nest
> 0) {
917 } else if (*p
== closing
) {
923 TRACE(QString().sprintf("parse error: mismatching %c%c at %-20.20s", opening
, closing
, s
));
929 * This function skips text that is delimited by nested angle bracktes, '<>'.
930 * A complication arises because the delimited text can contain the names of
931 * operator<<, operator>>, operator<, and operator>, which have to be treated
932 * specially so that they do not count towards the nesting of '<>'.
933 * This function assumes that the delimited text does not contain strings.
935 static void skipNestedAngles(const char*& s
)
940 p
++; // skip the initial '<'
941 while (*p
&& nest
> 0)
943 // Below we can check for p-s >= 9 instead of 8 because
944 // *s is '<' and cannot be part of "operator".
947 if (p
-s
>= 9 && strncmp(p
-8, "operator", 8) == 0) {
956 if (p
-s
>= 9 && strncmp(p
-8, "operator", 8) == 0) {
966 TRACE(QString().sprintf("parse error: mismatching <> at %-20.20s", s
));
972 * Find the end of line that is not inside braces
974 static void findEnd(const char*& s
)
977 while (*p
&& *p
!='\n') {
978 while (*p
&& *p
!='\n' && *p
!='{')
982 skipNested(p
, '{', '}'); p
--;
988 static bool isNumberish(const char ch
)
990 return (ch
>='0' && ch
<='9') || ch
=='.' || ch
=='x';
993 void skipString(const char*& p
)
998 while (*p
!= quote
) {
1000 // skip escaped character
1001 // no special treatment for octal values necessary
1004 // simply return if no more characters
1012 * Strings can consist of several parts, some of which contain repeated
1015 if (quote
== '\'') {
1016 // look ahaead for <repeats 123 times>
1017 const char* q
= p
+1;
1020 if (strncmp(q
, "<repeats ", 9) == 0) {
1022 while (*p
!= '\0' && *p
!= '>')
1025 p
++; /* skip the '>' */
1029 // is the string continued?
1031 // look ahead for another quote
1032 const char* q
= p
+1;
1035 if (*q
== '"' || *q
== '\'') {
1041 /* very long strings are followed by `...' */
1042 if (*p
== '.' && p
[1] == '.' && p
[2] == '.') {
1047 static void skipNestedWithString(const char*& s
, char opening
, char closing
)
1051 // parse a nested expression
1055 * Search for next matching `closing' char, skipping nested pairs of
1056 * `opening' and `closing' as well as strings.
1058 while (*p
&& nest
> 0) {
1059 if (*p
== opening
) {
1061 } else if (*p
== closing
) {
1063 } else if (*p
== '\'' || *p
== '\"') {
1070 TRACE(QString().sprintf("parse error: mismatching %c%c at %-20.20s", opening
, closing
, s
));
1075 inline void skipName(const char*& p
)
1077 // allow : (for enumeration values) and $ and . (for _vtbl.)
1078 while (isalnum(*p
) || *p
== '_' || *p
== ':' || *p
== '$' || *p
== '.')
1082 static bool parseName(const char*& s
, QString
& name
, VarTree::NameKind
& kind
)
1084 kind
= VarTree::NKplain
;
1087 // examples of names:
1090 // <string<a,b<c>,7> >
1093 skipNestedAngles(p
);
1094 name
= QString::fromLatin1(s
, p
- s
);
1095 kind
= VarTree::NKtype
;
1099 // name, which might be "static"; allow dot for "_vtbl."
1102 TRACE(QString().sprintf("parse error: not a name %-20.20s", s
));
1106 if (len
== 6 && strncmp(s
, "static", 6) == 0) {
1107 kind
= VarTree::NKstatic
;
1109 // its a static variable, name comes now
1115 TRACE(QString().sprintf("parse error: not a name after static %-20.20s", s
));
1120 name
= QString::fromLatin1(s
, len
);
1122 // return the new position
1127 static bool parseValue(const char*& s
, VarTree
* variable
)
1129 variable
->m_value
= "";
1133 // Sometimes we find the following output:
1134 // {<text variable, no debug info>} 0x40012000 <access>
1135 // {<data variable, no debug info>}
1136 // {<variable (not text or data), no debug info>}
1137 if (strncmp(s
, "{<text variable, ", 17) == 0 ||
1138 strncmp(s
, "{<data variable, ", 17) == 0 ||
1139 strncmp(s
, "{<variable (not text or data), ", 31) == 0)
1141 const char* start
= s
;
1142 skipNested(s
, '{', '}');
1143 variable
->m_value
= QString::fromLatin1(start
, s
-start
);
1144 variable
->m_value
+= ' '; // add only a single space
1152 if (!parseNested(s
, variable
)) {
1155 // must be the closing brace
1157 TRACE("parse error: missing } of " + variable
->getText());
1161 // final white space
1166 // examples of leaf values (cannot be the empty string):
1172 // (DwContentType&) @0x8123456: {...}
1176 // 0x823abc <Array<int> virtual table>
1177 // (void (*)()) 0x8048480 <f(E *, char)>
1180 // &parseP (HTMLClueV *, char *)
1181 // Variable "x" is not available.
1182 // The value of variable 'x' is distributed...
1183 // -nan(0xfffff081defa0)
1190 skipNested(p
, '(', ')');
1194 variable
->m_value
= QString::fromLatin1(s
, p
- s
);
1197 bool reference
= false;
1199 // skip reference marker
1203 const char* start
= p
;
1207 // some values consist of more than one token
1208 bool checkMultiPart
= false;
1210 if (p
[0] == '0' && p
[1] == 'x') {
1213 while (isxdigit(*p
))
1217 * Assume this is a pointer, but only if it's not a reference, since
1218 * references can't be expanded.
1221 variable
->m_varKind
= VarTree::VKpointer
;
1224 * References are followed by a colon, in which case we'll
1225 * find the value following the reference address.
1230 // Paranoia. (Can this happen, i.e. reference not followed by ':'?)
1234 checkMultiPart
= true;
1235 } else if (isdigit(*p
)) {
1236 // parse decimal number, possibly a float
1239 if (*p
== '.') { /* TODO: obey i18n? */
1240 // In long arrays an integer may be followed by '...'.
1241 // We test for this situation and don't gobble the '...'.
1242 if (p
[1] != '.' || p
[0] != '.') {
1249 if (*p
== 'e' || *p
== 'E') {
1252 if (*p
== '-' || *p
== '+')
1258 // for char variables there is the char, eg. 10 '\n'
1259 checkMultiPart
= true;
1260 } else if (*p
== '<') {
1261 // e.g. <optimized out>
1262 skipNestedAngles(p
);
1263 } else if (*p
== '"' || *p
== '\'') {
1264 // character may have multipart: '\000' <repeats 11 times>
1265 checkMultiPart
= *p
== '\'';
1268 } else if (*p
== '&') {
1272 while (isspace(*p
)) {
1276 skipNested(p
, '(', ')');
1278 } else if (strncmp(p
, "Variable \"", 10) == 0) {
1279 // Variable "x" is not available.
1280 p
+= 10; // skip to "
1282 if (strncmp(p
, "\" is not available.", 19) == 0) {
1285 } else if (strncmp(p
, "The value of variable '", 23) == 0) {
1288 const char* e
= strchr(p
, '.');
1295 // must be an enumeration value
1297 // hmm, not necessarily: nan (floating point Not a Number)
1298 // is followed by a number in ()
1300 skipNested(p
, '(', ')');
1302 variable
->m_value
+= QString::fromLatin1(start
, p
- start
);
1304 // remove line breaks from the value; this is ok since
1305 // string values never contain a literal line break
1306 variable
->m_value
.replace('\n', ' ');
1308 if (checkMultiPart
) {
1312 // may be followed by a string or <...>
1315 if (*p
== '"' || *p
== '\'') {
1317 } else if (*p
== '<') {
1318 // if this value is part of an array, it might be followed
1319 // by <repeats 15 times>, which we don't skip here
1320 if (strncmp(p
, "<repeats ", 9) != 0)
1321 skipNestedAngles(p
);
1324 // there is always a blank before the string,
1325 // which we will include in the final string value
1326 variable
->m_value
+= QString::fromLatin1(start
-1, (p
- start
)+1);
1327 // if this was a pointer, reset that flag since we
1328 // now got the value
1329 variable
->m_varKind
= VarTree::VKsimple
;
1333 if (variable
->m_value
.length() == 0) {
1334 TRACE("parse error: no value for " + variable
->getText());
1338 // final white space
1344 * If this was a reference, the value follows. It might even be a
1345 * composite variable!
1351 if (variable
->m_varKind
== VarTree::VKpointer
) {
1352 variable
->setDelayedExpanding(true);
1359 static bool parseNested(const char*& s
, VarTree
* variable
)
1361 // could be a structure or an array
1366 bool isStruct
= false;
1368 * If there is a name followed by an = or an < -- which starts a type
1369 * name -- or "static", it is a structure
1371 if (*p
== '<' || *p
== '}') {
1373 } else if (strncmp(p
, "static ", 7) == 0) {
1375 } else if (isalpha(*p
) || *p
== '_' || *p
== '$') {
1376 // look ahead for a comma after the name
1383 p
= s
; /* rescan the name */
1386 if (!parseVarSeq(p
, variable
)) {
1389 variable
->m_varKind
= VarTree::VKstruct
;
1391 if (!parseValueSeq(p
, variable
)) {
1394 variable
->m_varKind
= VarTree::VKarray
;
1400 static bool parseVarSeq(const char*& s
, VarTree
* variable
)
1402 // parse a comma-separated sequence of variables
1403 VarTree
* var
= variable
; /* var != 0 to indicate success if empty seq */
1407 if (strncmp(s
, "<No data fields>}", 17) == 0)
1409 // no member variables, so break out immediately
1410 s
+= 16; /* go to the closing brace */
1415 break; /* syntax error */
1416 variable
->appendChild(var
);
1419 // skip the comma and whitespace
1427 static bool parseValueSeq(const char*& s
, VarTree
* variable
)
1429 // parse a comma-separated sequence of variables
1434 name
.sprintf("[%d]", index
);
1435 VarTree
* var
= new VarTree(name
, VarTree::NKplain
);
1436 good
= parseValue(s
, var
);
1441 // a value may be followed by "<repeats 45 times>"
1442 if (strncmp(s
, "<repeats ", 9) == 0) {
1445 int l
= strtol(s
, &end
, 10);
1446 if (end
== s
|| strncmp(end
, " times>", 7) != 0) {
1447 // should not happen
1451 TRACE(QString().sprintf("found <repeats %d times> in array", l
));
1452 // replace name and advance index
1453 name
.sprintf("[%d .. %d]", index
, index
+l
-1);
1456 // skip " times>" and space
1458 // possible final space
1464 variable
->appendChild(var
);
1465 // long arrays may be terminated by '...'
1466 if (strncmp(s
, "...", 3) == 0) {
1468 VarTree
* var
= new VarTree("...", VarTree::NKplain
);
1469 var
->m_value
= i18n("<additional entries of the array suppressed>");
1470 variable
->appendChild(var
);
1476 // skip the comma and whitespace
1480 // sometimes there is a closing brace after a comma
1488 * Parses a stack frame.
1490 static void parseFrameInfo(const char*& s
, QString
& func
,
1491 QString
& file
, int& lineNo
, DbgAddr
& address
)
1495 // next may be a hexadecimal address
1497 const char* start
= p
;
1501 while (isxdigit(*p
))
1503 address
= QString::fromLatin1(start
, p
-start
);
1504 if (strncmp(p
, " in ", 4) == 0)
1507 address
= DbgAddr();
1509 const char* start
= p
;
1510 // check for special signal handler frame
1511 if (strncmp(p
, "<signal handler called>", 23) == 0) {
1512 func
= QString::fromLatin1(start
, 23);
1522 * Skip the function name. It is terminated by a left parenthesis
1523 * which does not delimit "(anonymous namespace)" and which is
1524 * outside the angle brackets <> of template parameter lists.
1529 // check for operator<< and operator<
1530 if (p
-start
>= 8 && strncmp(p
-8, "operator", 8) == 0)
1538 // skip template parameter list
1539 skipNestedAngles(p
);
1541 } else if (*p
== '(') {
1542 if (strncmp(p
, "(anonymous namespace)", 21) != 0)
1543 break; // parameter list found
1558 * Skip parameters. But notice that for complicated conversion
1559 * functions (eg. "operator int(**)()()", ie. convert to pointer to
1560 * pointer to function) as well as operator()(...) we have to skip
1561 * additional pairs of parentheses. Furthermore, recent gdbs write the
1562 * demangled name followed by the arguments in a pair of parentheses,
1563 * where the demangled name can end in "const".
1566 skipNestedWithString(p
, '(', ')');
1570 if (strncmp(p
, "const", 5) == 0) {
1575 } while (*p
== '(');
1577 // check for file position
1578 if (strncmp(p
, "at ", 3) == 0) {
1580 const char* fileStart
= p
;
1581 // go for the end of the line
1582 while (*p
!= '\0' && *p
!= '\n')
1584 // search back for colon
1585 const char* colon
= p
;
1588 } while (*colon
!= ':');
1589 file
= QString::fromLatin1(fileStart
, colon
-fileStart
);
1590 lineNo
= atoi(colon
+1)-1;
1595 // check for "from shared lib"
1596 if (strncmp(p
, "from ", 5) == 0) {
1598 // go for the end of the line
1599 while (*p
!= '\0' && *p
!= '\n')
1608 // construct the function name (including file info)
1612 func
= QString::fromLatin1(start
, p
-start
-1); /* don't include \n */
1617 * Replace \n (and whitespace around it) in func by a blank. We cannot
1618 * use QString::simplifyWhiteSpace() for this because this would also
1619 * simplify space that belongs to a string arguments that gdb sometimes
1620 * prints in the argument lists of the function.
1622 ASSERT(!isspace(func
[0].latin1())); /* there must be non-white before first \n */
1624 while ((nl
= func
.find('\n', nl
)) >= 0) {
1625 // search back to the beginning of the whitespace
1626 int startWhite
= nl
;
1629 } while (isspace(func
[startWhite
].latin1()));
1631 // search forward to the end of the whitespace
1634 } while (isspace(func
[nl
].latin1()));
1636 func
.replace(startWhite
, nl
-startWhite
, " ");
1637 /* continue searching for more \n's at this place: */
1644 * Parses a stack frame including its frame number
1646 static bool parseFrame(const char*& s
, int& frameNo
, QString
& func
,
1647 QString
& file
, int& lineNo
, DbgAddr
& address
)
1650 // #1 0x8048881 in Dl::Dl (this=0xbffff418, r=3214) at testfile.cpp:72
1651 // Breakpoint 3, Cl::f(int) const (this=0xbffff3c0, x=17) at testfile.cpp:155
1653 // must start with a hash mark followed by number
1654 // or with "Breakpoint " followed by number and comma
1658 s
++; /* skip the hash mark */
1659 } else if (strncmp(s
, "Breakpoint ", 11) == 0) {
1660 if (!isdigit(s
[11]))
1662 s
+= 11; /* skip "Breakpoint" */
1671 while (isspace(*s
) || *s
== ',')
1673 parseFrameInfo(s
, func
, file
, lineNo
, address
);
1677 void GdbDriver::parseBackTrace(const char* output
, QList
<StackFrame
>& stack
)
1680 int lineNo
, frameNo
;
1683 while (::parseFrame(output
, frameNo
, func
, file
, lineNo
, address
)) {
1684 StackFrame
* frm
= new StackFrame
;
1685 frm
->frameNo
= frameNo
;
1686 frm
->fileName
= file
;
1687 frm
->lineNo
= lineNo
;
1688 frm
->address
= address
;
1689 frm
->var
= new VarTree(func
, VarTree::NKplain
);
1694 bool GdbDriver::parseFrameChange(const char* output
, int& frameNo
,
1695 QString
& file
, int& lineNo
, DbgAddr
& address
)
1698 return ::parseFrame(output
, frameNo
, func
, file
, lineNo
, address
);
1702 bool GdbDriver::parseBreakList(const char* output
, QList
<Breakpoint
>& brks
)
1704 // skip first line, which is the headline
1705 const char* p
= strchr(output
, '\n');
1716 uint ignoreCount
= 0;
1720 while (*p
!= '\0') {
1722 long bpNum
= strtol(p
, &dummy
, 10); /* don't care about overflows */
1727 Breakpoint::Type bpType
= Breakpoint::breakpoint
;
1728 if (strncmp(p
, "breakpoint", 10) == 0) {
1730 } else if (strncmp(p
, "hw watchpoint", 13) == 0) {
1731 bpType
= Breakpoint::watchpoint
;
1733 } else if (strncmp(p
, "watchpoint", 10) == 0) {
1734 bpType
= Breakpoint::watchpoint
;
1743 while (*p
!= '\0' && !isspace(*p
)) /* "keep" or "del" */
1751 while (*p
!= '\0' && !isspace(*p
)) /* "y" or "n" */
1757 // the address, if present
1758 if (bpType
== Breakpoint::breakpoint
&&
1759 strncmp(p
, "0x", 2) == 0)
1761 const char* start
= p
;
1762 while (*p
!= '\0' && !isspace(*p
))
1764 address
= QString::fromLatin1(start
, p
-start
);
1765 while (isspace(*p
) && *p
!= '\n')
1770 address
= QString();
1772 // remainder is location, hit and ignore count, condition
1775 condition
= QString();
1776 end
= strchr(p
, '\n');
1779 p
+= location
.length();
1781 location
= QString::fromLatin1(p
, end
-p
).stripWhiteSpace();
1782 p
= end
+1; /* skip over \n */
1785 // may be continued in next line
1786 while (isspace(*p
)) { /* p points to beginning of line */
1787 // skip white space at beginning of line
1792 end
= strchr(p
, '\n');
1796 if (strncmp(p
, "breakpoint already hit", 22) == 0) {
1797 // extract the hit count
1799 hits
= strtol(p
, &dummy
, 10);
1800 TRACE(QString().sprintf("hit count %d", hits
));
1801 } else if (strncmp(p
, "stop only if ", 13) == 0) {
1802 // extract condition
1804 condition
= QString::fromLatin1(p
, end
-p
).stripWhiteSpace();
1805 TRACE("condition: "+condition
);
1806 } else if (strncmp(p
, "ignore next ", 12) == 0) {
1807 // extract ignore count
1809 ignoreCount
= strtol(p
, &dummy
, 10);
1810 TRACE(QString().sprintf("ignore count %d", ignoreCount
));
1812 // indeed a continuation
1813 location
+= " " + QString::fromLatin1(p
, end
-p
).stripWhiteSpace();
1817 p
++; /* skip '\n' */
1819 Breakpoint
* bp
= new Breakpoint
;
1822 bp
->temporary
= disp
== 'd';
1823 bp
->enabled
= enable
== 'y';
1824 bp
->location
= location
;
1825 bp
->address
= address
;
1826 bp
->hitCount
= hits
;
1827 bp
->ignoreCount
= ignoreCount
;
1828 bp
->condition
= condition
;
1834 bool GdbDriver::parseThreadList(const char* output
, QList
<ThreadInfo
>& threads
)
1836 if (strcmp(output
, "\n") == 0 || strncmp(output
, "No stack.", 9) == 0) {
1847 const char* p
= output
;
1848 while (*p
!= '\0') {
1849 // seach look for thread id, watching out for the focus indicator
1850 bool hasFocus
= false;
1851 while (isspace(*p
)) /* may be \n from prev line: see "No stack" below */
1856 // there follows only whitespace
1859 id
= strtol(p
, &end
, 10);
1861 // syntax error: no number found; bail out
1871 * Now follows the thread's SYSTAG. It is terminated by two blanks.
1873 end
= strstr(p
, " ");
1875 // syntax error; bail out
1878 systag
= QString::fromLatin1(p
, end
-p
);
1882 * Now follows a standard stack frame. Sometimes, however, gdb
1883 * catches a thread at an instant where it doesn't have a stack.
1885 if (strncmp(p
, "[No stack.]", 11) != 0) {
1886 ::parseFrameInfo(p
, func
, file
, lineNo
, address
);
1888 func
= "[No stack]";
1891 address
= QString();
1892 p
+= 11; /* \n is skipped above */
1895 ThreadInfo
* thr
= new ThreadInfo
;
1897 thr
->threadName
= systag
;
1898 thr
->hasFocus
= hasFocus
;
1899 thr
->function
= func
;
1900 thr
->fileName
= file
;
1901 thr
->lineNo
= lineNo
;
1902 thr
->address
= address
;
1903 threads
.append(thr
);
1908 static bool parseNewBreakpoint(const char* o
, int& id
,
1909 QString
& file
, int& lineNo
, QString
& address
);
1910 static bool parseNewWatchpoint(const char* o
, int& id
,
1913 bool GdbDriver::parseBreakpoint(const char* output
, int& id
,
1914 QString
& file
, int& lineNo
, QString
& address
)
1916 const char* o
= output
;
1917 // skip lines of that begin with "(Cannot find"
1918 while (strncmp(o
, "(Cannot find", 12) == 0) {
1919 o
= strchr(o
, '\n');
1922 o
++; /* skip newline */
1925 if (strncmp(o
, "Breakpoint ", 11) == 0) {
1926 output
+= 11; /* skip "Breakpoint " */
1927 return ::parseNewBreakpoint(output
, id
, file
, lineNo
, address
);
1928 } else if (strncmp(o
, "Hardware watchpoint ", 20) == 0) {
1930 return ::parseNewWatchpoint(output
, id
, address
);
1931 } else if (strncmp(o
, "Watchpoint ", 11) == 0) {
1933 return ::parseNewWatchpoint(output
, id
, address
);
1938 static bool parseNewBreakpoint(const char* o
, int& id
,
1939 QString
& file
, int& lineNo
, QString
& address
)
1943 id
= strtoul(o
, &p
, 10);
1947 // check for the address
1948 if (strncmp(p
, " at 0x", 6) == 0) {
1949 char* start
= p
+4; /* skip " at ", but not 0x */
1951 while (isxdigit(*p
))
1953 address
= QString::fromLatin1(start
, p
-start
);
1957 char* fileStart
= strstr(p
, "file ");
1959 return !address
.isEmpty(); /* parse error only if there's no address */
1963 char* numStart
= strstr(fileStart
, ", line ");
1964 QString fileName
= QString::fromLatin1(fileStart
, numStart
-fileStart
);
1966 int line
= strtoul(numStart
, &p
, 10);
1971 lineNo
= line
-1; /* zero-based! */
1975 static bool parseNewWatchpoint(const char* o
, int& id
,
1980 id
= strtoul(o
, &p
, 10);
1984 if (strncmp(p
, ": ", 2) != 0)
1988 // all the rest on the line is the expression
1989 expr
= QString::fromLatin1(p
, strlen(p
)).stripWhiteSpace();
1993 void GdbDriver::parseLocals(const char* output
, QList
<VarTree
>& newVars
)
1995 // check for possible error conditions
1996 if (strncmp(output
, "No symbol table", 15) == 0)
2001 while (*output
!= '\0') {
2002 while (isspace(*output
))
2004 if (*output
== '\0')
2006 // skip occurrences of "No locals" and "No args"
2007 if (strncmp(output
, "No locals", 9) == 0 ||
2008 strncmp(output
, "No arguments", 12) == 0)
2010 output
= strchr(output
, '\n');
2017 VarTree
* variable
= parseVar(output
);
2018 if (variable
== 0) {
2021 // do not add duplicates
2022 for (VarTree
* o
= newVars
.first(); o
!= 0; o
= newVars
.next()) {
2023 if (o
->getText() == variable
->getText()) {
2028 newVars
.append(variable
);
2033 VarTree
* GdbDriver::parsePrintExpr(const char* output
, bool wantErrorValue
)
2036 // check for error conditions
2037 if (!parseErrorMessage(output
, var
, wantErrorValue
))
2039 // parse the variable
2040 var
= parseVar(output
);
2045 bool GdbDriver::parseChangeWD(const char* output
, QString
& message
)
2047 bool isGood
= false;
2048 message
= QString(output
).simplifyWhiteSpace();
2049 if (message
.isEmpty()) {
2050 message
= i18n("New working directory: ") + m_programWD
;
2056 bool GdbDriver::parseChangeExecutable(const char* output
, QString
& message
)
2060 m_haveCoreFile
= false;
2063 * Lines starting with the following do not indicate errors:
2064 * Using host libthread_db
2065 * (no debugging symbols found)
2067 while (strncmp(output
, "Using host libthread_db", 23) == 0 ||
2068 strncmp(output
, "(no debugging symbols found)", 28) == 0)
2070 // this line is good, go to the next one
2071 const char* end
= strchr(output
, '\n');
2073 output
+= strlen(output
);
2079 * If we've parsed all lines, there was no error.
2081 return output
[0] == '\0';
2084 bool GdbDriver::parseCoreFile(const char* output
)
2086 // if command succeeded, gdb emits a line starting with "#0 "
2087 m_haveCoreFile
= strstr(output
, "\n#0 ") != 0;
2088 return m_haveCoreFile
;
2091 uint
GdbDriver::parseProgramStopped(const char* output
, QString
& message
)
2093 // optionally: "program changed, rereading symbols",
2095 // "Program exited normally"
2096 // "Program terminated with wignal SIGSEGV"
2097 // "Program received signal SIGINT" or other signal
2100 // go through the output, line by line, checking what we have
2101 const char* start
= output
- 1;
2102 uint flags
= SFprogramActive
;
2103 message
= QString();
2105 start
++; /* skip '\n' */
2107 if (strncmp(start
, "Program ", 8) == 0 ||
2108 strncmp(start
, "ptrace: ", 8) == 0) {
2110 * When we receive a signal, the program remains active.
2112 * Special: If we "stopped" in a corefile, the string "Program
2113 * terminated with signal"... is displayed. (Normally, we see
2114 * "Program received signal"... when a signal happens.)
2116 if (strncmp(start
, "Program exited", 14) == 0 ||
2117 (strncmp(start
, "Program terminated", 18) == 0 && !m_haveCoreFile
) ||
2118 strncmp(start
, "ptrace: ", 8) == 0)
2120 flags
&= ~SFprogramActive
;
2124 const char* endOfMessage
= strchr(start
, '\n');
2125 if (endOfMessage
== 0)
2126 endOfMessage
= start
+ strlen(start
);
2127 message
= QString::fromLatin1(start
, endOfMessage
-start
);
2128 } else if (strncmp(start
, "Breakpoint ", 11) == 0) {
2130 * We stopped at a (permanent) breakpoint (gdb doesn't tell us
2131 * that it stopped at a temporary breakpoint).
2133 flags
|= SFrefreshBreak
;
2134 } else if (strstr(start
, "re-reading symbols.") != 0) {
2135 flags
|= SFrefreshSource
;
2138 // next line, please
2139 start
= strchr(start
, '\n');
2140 } while (start
!= 0);
2143 * Gdb only notices when new threads have appeared, but not when a
2144 * thread finishes. So we always have to assume that the list of
2145 * threads has changed.
2147 flags
|= SFrefreshThreads
;
2152 void GdbDriver::parseSharedLibs(const char* output
, QStrList
& shlibs
)
2154 if (strncmp(output
, "No shared libraries loaded", 26) == 0)
2157 // parse the table of shared libraries
2159 // strip off head line
2160 output
= strchr(output
, '\n');
2163 output
++; /* skip '\n' */
2165 while (*output
!= '\0') {
2166 // format of a line is
2167 // 0x404c5000 0x40580d90 Yes /lib/libc.so.5
2168 // 3 blocks of non-space followed by space
2169 for (int i
= 0; *output
!= '\0' && i
< 3; i
++) {
2170 while (*output
!= '\0' && !isspace(*output
)) { /* non-space */
2173 while (isspace(*output
)) { /* space */
2177 if (*output
== '\0')
2179 const char* start
= output
;
2180 output
= strchr(output
, '\n');
2182 output
= start
+ strlen(start
);
2183 shlibName
= QString::fromLatin1(start
, output
-start
);
2184 if (*output
!= '\0')
2186 shlibs
.append(shlibName
);
2187 TRACE("found shared lib " + shlibName
);
2191 bool GdbDriver::parseFindType(const char* output
, QString
& type
)
2193 if (strncmp(output
, "type = ", 7) != 0)
2197 * Everything else is the type. We strip off any leading "const" and any
2198 * trailing "&" on the grounds that neither affects the decoding of the
2199 * object. We also strip off all white-space from the type.
2202 if (strncmp(output
, "const ", 6) == 0)
2205 type
.replace(QRegExp("\\s+"), "");
2206 if (type
.endsWith("&"))
2207 type
.truncate(type
.length() - 1);
2211 void GdbDriver::parseRegisters(const char* output
, QList
<RegisterInfo
>& regs
)
2213 if (strncmp(output
, "The program has no registers now", 32) == 0) {
2220 // parse register values
2221 while (*output
!= '\0')
2223 // skip space at the start of the line
2224 while (isspace(*output
))
2228 const char* start
= output
;
2229 while (*output
!= '\0' && !isspace(*output
))
2231 if (*output
== '\0')
2233 regName
= QString::fromLatin1(start
, output
-start
);
2236 while (isspace(*output
))
2239 RegisterInfo
* reg
= new RegisterInfo
;
2240 reg
->regName
= regName
;
2243 * If we find a brace now, this is a vector register. We look for
2244 * the closing brace and treat the result as cooked value.
2249 skipNested(output
, '{', '}');
2250 value
= QString::fromLatin1(start
, output
-start
).simplifyWhiteSpace();
2251 // skip space, but not the end of line
2252 while (isspace(*output
) && *output
!= '\n')
2254 // get rid of the braces at the begining and the end
2256 if (value
[value
.length()-1] == '}') {
2257 value
= value
.left(value
.length()-1);
2259 // gdb 5.3 doesn't print a separate set of raw values
2260 if (*output
== '{') {
2261 // another set of vector follows
2262 // what we have so far is the raw value
2263 reg
->rawValue
= value
;
2266 skipNested(output
, '{', '}');
2267 value
= QString::fromLatin1(start
, output
-start
).simplifyWhiteSpace();
2270 // find first type that does not have an array, this is the RAW value
2271 const char* end
=start
;
2273 const char* cur
=start
;
2275 while (*cur
!= '=' && cur
<end
)
2278 while (isspace(*cur
) && cur
<end
)
2280 if (isNumberish(*cur
)) {
2282 while (*end
&& (*end
!='}') && (*end
!=',') && (*end
!='\n'))
2284 QString rawValue
= QString::fromLatin1(cur
, end
-cur
).simplifyWhiteSpace();
2285 reg
->rawValue
= rawValue
;
2287 if (rawValue
.left(2)=="0x") {
2288 // ok we have a raw value, now get it's type
2290 while (isspace(*end
) || *end
=='=') end
--;
2293 while (*cur
!='{' && *cur
!=' ')
2296 reg
->type
=QString::fromLatin1(cur
, end
-cur
);
2303 // skip to the end of line
2304 while (*output
!= '\0' && *output
!= '\n')
2306 // get rid of the braces at the begining and the end
2308 if (value
[value
.length()-1] == '}') {
2309 value
= value
.left(value
.length()-1);
2312 reg
->cookedValue
= value
;
2316 // the rest of the line is the register value
2318 output
= strchr(output
,'\n');
2320 output
= start
+ strlen(start
);
2321 value
= QString::fromLatin1(start
, output
-start
).simplifyWhiteSpace();
2324 * We split the raw from the cooked values.
2325 * Some modern gdbs explicitly say: "0.1234 (raw 0x3e4567...)".
2326 * Here, the cooked value comes first, and the raw value is in
2329 int pos
= value
.find(" (raw ");
2332 reg
->cookedValue
= value
.left(pos
);
2333 reg
->rawValue
= value
.mid(pos
+6);
2334 if (reg
->rawValue
.right(1) == ")") // remove closing bracket
2335 reg
->rawValue
.truncate(reg
->rawValue
.length()-1);
2340 * In other cases we split off the first token (separated by
2341 * whitespace). It is the raw value. The remainder of the line
2342 * is the cooked value.
2344 int pos
= value
.find(' ');
2346 reg
->rawValue
= value
;
2347 reg
->cookedValue
= QString();
2349 reg
->rawValue
= value
.left(pos
);
2350 reg
->cookedValue
= value
.mid(pos
+1);
2354 if (*output
!= '\0')
2355 output
++; /* skip '\n' */
2361 bool GdbDriver::parseInfoLine(const char* output
, QString
& addrFrom
, QString
& addrTo
)
2363 // "is at address" or "starts at address"
2364 const char* start
= strstr(output
, "s at address ");
2369 const char* p
= start
;
2370 while (*p
!= '\0' && !isspace(*p
))
2372 addrFrom
= QString::fromLatin1(start
, p
-start
);
2374 start
= strstr(p
, "and ends at ");
2382 while (*p
!= '\0' && !isspace(*p
))
2384 addrTo
= QString::fromLatin1(start
, p
-start
);
2389 void GdbDriver::parseDisassemble(const char* output
, QList
<DisassembledCode
>& code
)
2393 if (strncmp(output
, "Dump of assembler", 17) != 0) {
2397 code
.append(new DisassembledCode(c
));
2401 // remove first line
2402 const char* p
= strchr(output
, '\n');
2404 return; /* not a regular output */
2409 const char* end
= strstr(output
, "End of assembler");
2411 end
= p
+ strlen(p
);
2415 // remove function offsets from the lines
2418 const char* start
= p
;
2420 while (p
!= end
&& !isspace(*p
))
2422 address
= QString::fromLatin1(start
, p
-start
);
2424 // function name (enclosed in '<>', followed by ':')
2425 while (p
!= end
&& *p
!= '<')
2428 skipNestedAngles(p
);
2433 while (p
!= end
&& isspace(*p
))
2436 // code until end of line
2438 while (p
!= end
&& *p
!= '\n')
2440 if (p
!= end
) /* include '\n' */
2443 DisassembledCode
* c
= new DisassembledCode
;
2444 c
->address
= address
;
2445 c
->code
= QString::fromLatin1(start
, p
-start
);
2450 QString
GdbDriver::parseMemoryDump(const char* output
, QList
<MemoryDump
>& memdump
)
2452 if (isErrorExpr(output
)) {
2453 // error; strip space
2454 QString msg
= output
;
2455 return msg
.stripWhiteSpace();
2458 const char* p
= output
; /* save typing */
2464 const char* start
= p
;
2465 while (*p
!= '\0' && *p
!= ':' && !isspace(*p
))
2467 addr
= QString::fromLatin1(start
, p
-start
);
2469 // parse function offset
2473 while (*p
!= '\0' && !(*p
== ':' && isspace(p
[1])))
2475 addr
.fnoffs
= QString::fromLatin1(start
, p
-start
);
2479 // skip space; this may skip a new-line char!
2482 // everything to the end of the line is the memory dump
2483 const char* end
= strchr(p
, '\n');
2485 dump
= QString::fromLatin1(p
, end
-p
);
2488 dump
= QString::fromLatin1(p
, strlen(p
));
2491 MemoryDump
* md
= new MemoryDump
;
2500 QString
GdbDriver::editableValue(VarTree
* value
)
2502 const char* s
= value
->m_value
.latin1();
2504 // if the variable is a pointer value that contains a cast,
2507 skipNested(s
, '(', ')');
2514 const char* start
= s
;
2516 if (strncmp(s
, "0x", 2) == 0)
2519 while (isxdigit(*s
))
2523 * What we saw so far might have been a reference. If so, edit the
2524 * referenced value. Otherwise, edit the pointer.
2532 // if it's a pointer to a string, remove the string
2533 const char* end
= s
;
2538 return QString::fromLatin1(start
, end
-start
);
2541 return QString::fromLatin1(start
, strlen(start
));
2545 // else leave it unchanged (or stripped of the reference preamble)
2549 QString
GdbDriver::parseSetVariable(const char* output
)
2551 // if there is any output, it is an error message
2552 QString msg
= output
;
2553 return msg
.stripWhiteSpace();
2557 #include "gdbdriver.moc"