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 { DCsetvariable
, "set variable %s=%s\n", GdbCmdInfo::argString2
},
121 #define NUM_CMDS (int(sizeof(cmds)/sizeof(cmds[0])))
122 #define MAX_FMTLEN 200
124 GdbDriver::GdbDriver() :
126 m_gdbMajor(4), m_gdbMinor(16)
128 strcpy(m_prompt
, PROMPT
);
129 m_promptMinLen
= PROMPT_LEN
;
130 m_promptLastChar
= PROMPT_LAST_CHAR
;
133 // check command info array
135 for (int i
= 0; i
< NUM_CMDS
; i
++) {
136 // must be indexable by DbgCommand values, i.e. sorted by DbgCommand values
137 assert(i
== cmds
[i
].cmd
);
138 // a format string must be associated
139 assert(cmds
[i
].fmt
!= 0);
140 assert(strlen(cmds
[i
].fmt
) <= MAX_FMTLEN
);
141 // format string must match arg specification
142 switch (cmds
[i
].argsNeeded
) {
143 case GdbCmdInfo::argNone
:
144 assert(strchr(cmds
[i
].fmt
, '%') == 0);
146 case GdbCmdInfo::argString
:
147 perc
= strchr(cmds
[i
].fmt
, '%');
148 assert(perc
!= 0 && perc
[1] == 's');
149 assert(strchr(perc
+2, '%') == 0);
151 case GdbCmdInfo::argNum
:
152 perc
= strchr(cmds
[i
].fmt
, '%');
153 assert(perc
!= 0 && perc
[1] == 'd');
154 assert(strchr(perc
+2, '%') == 0);
156 case GdbCmdInfo::argStringNum
:
157 perc
= strchr(cmds
[i
].fmt
, '%');
158 assert(perc
!= 0 && perc
[1] == 's');
159 perc
= strchr(perc
+2, '%');
160 assert(perc
!= 0 && perc
[1] == 'd');
161 assert(strchr(perc
+2, '%') == 0);
163 case GdbCmdInfo::argNumString
:
164 perc
= strchr(cmds
[i
].fmt
, '%');
165 assert(perc
!= 0 && perc
[1] == 'd');
166 perc
= strchr(perc
+2, '%');
167 assert(perc
!= 0 && perc
[1] == 's');
168 assert(strchr(perc
+2, '%') == 0);
170 case GdbCmdInfo::argString2
:
171 perc
= strchr(cmds
[i
].fmt
, '%');
172 assert(perc
!= 0 && perc
[1] == 's');
173 perc
= strchr(perc
+2, '%');
174 assert(perc
!= 0 && perc
[1] == 's');
175 assert(strchr(perc
+2, '%') == 0);
177 case GdbCmdInfo::argNum2
:
178 perc
= strchr(cmds
[i
].fmt
, '%');
179 assert(perc
!= 0 && perc
[1] == 'd');
180 perc
= strchr(perc
+2, '%');
181 assert(perc
!= 0 && perc
[1] == 'd');
182 assert(strchr(perc
+2, '%') == 0);
186 assert(strlen(printQStringStructFmt
) <= MAX_FMTLEN
);
190 GdbDriver::~GdbDriver()
195 QString
GdbDriver::driverName() const
200 QString
GdbDriver::defaultGdb()
204 " --fullname" /* to get standard file names each time the prog stops */
205 " --nx"; /* do not execute initialization files */
208 QString
GdbDriver::defaultInvocation() const
210 if (m_defaultCmd
.isEmpty()) {
217 QStringList
GdbDriver::boolOptionList() const
220 return QStringList();
223 bool GdbDriver::startup(QString cmdStr
)
225 if (!DebuggerDriver::startup(cmdStr
))
228 static const char gdbInitialize
[] =
230 * Work around buggy gdbs that do command line editing even if they
231 * are not on a tty. The readline library echos every command back
232 * in this case, which is confusing for us.
236 "set print static-members off\n"
237 "set print asm-demangle on\n"
239 * Don't assume that program functions invoked from a watch expression
242 "set unwindonsignal on\n"
244 * Write a short macro that prints all locals: local variables and
245 * function arguments.
247 "define kdbg__alllocals\n"
248 "info locals\n" /* local vars supersede args with same name */
249 "info args\n" /* therefore, arguments must come last */
252 * Work around a bug in gdb-6.3: "info line main" crashes gdb.
254 "define kdbg_infolinemain\n"
258 // change prompt string and synchronize with gdb
259 "set prompt " PROMPT
"\n"
262 executeCmdString(DCinitialize
, gdbInitialize
, false);
264 // assume that QString::null is ok
265 cmds
[DCprintQStringStruct
].fmt
= printQStringStructFmt
;
270 void GdbDriver::commandFinished(CmdQueueItem
* cmd
)
272 // command string must be committed
273 if (!cmd
->m_committed
) {
275 TRACE("calling " + (__PRETTY_FUNCTION__
+ (" with uncommited command:\n\t" +
280 switch (cmd
->m_cmd
) {
282 // get version number from preamble
285 QRegExp
GDBVersion("\\nGDB [0-9]+\\.[0-9]+");
286 int offset
= GDBVersion
.match(m_output
, 0, &len
);
288 char* start
= m_output
+ offset
+ 5; // skip "\nGDB "
290 m_gdbMajor
= strtol(start
, &end
, 10);
291 m_gdbMinor
= strtol(end
+ 1, 0, 10); // skip "."
293 // nothing was parsed
298 // assume some default version (what would make sense?)
302 // use a feasible core-file command
303 if (m_gdbMajor
> 4 || (m_gdbMajor
== 4 && m_gdbMinor
>= 16)) {
304 cmds
[DCcorefile
].fmt
= "target core %s\n";
306 cmds
[DCcorefile
].fmt
= "core-file %s\n";
313 /* ok, the command is ready */
314 emit
commandReceived(cmd
, m_output
);
316 switch (cmd
->m_cmd
) {
335 * The --fullname option makes gdb send a special normalized sequence print
336 * each time the program stops and at some other points. The sequence has
337 * the form "\032\032filename:lineno:charoffset:(beg|middle):address".
339 void GdbDriver::parseMarker()
341 char* startMarker
= strstr(m_output
, "\032\032");
342 if (startMarker
== 0)
345 // extract the marker
347 TRACE(QString("found marker: ") + startMarker
);
348 char* endMarker
= strchr(startMarker
, '\n');
354 // extract filename and line number
355 static QRegExp
MarkerRE(":[0-9]+:[0-9]+:[begmidl]+:0x");
358 int lineNoStart
= MarkerRE
.match(startMarker
, 0, &len
);
359 if (lineNoStart
>= 0) {
360 int lineNo
= atoi(startMarker
+ lineNoStart
+1);
363 const char* addrStart
= startMarker
+ lineNoStart
+ len
- 2;
364 DbgAddr address
= QString(addrStart
).stripWhiteSpace();
366 // now show the window
367 startMarker
[lineNoStart
] = '\0'; /* split off file name */
368 emit
activateFileLine(startMarker
, lineNo
-1, address
);
374 * Escapes characters that might lead to problems when they appear on gdb's
377 static void normalizeStringArg(QString
& arg
)
380 * Remove trailing backslashes. This approach is a little simplistic,
381 * but we know that there is at the moment no case where a trailing
382 * backslash would make sense.
384 while (!arg
.isEmpty() && arg
[arg
.length()-1] == '\\') {
385 arg
= arg
.left(arg
.length()-1);
390 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg
)
392 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
393 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argString
);
395 normalizeStringArg(strArg
);
398 // need the working directory when parsing the output
399 m_programWD
= strArg
;
400 } else if (cmd
== DCsetargs
) {
401 // attach saved redirection
402 strArg
+= m_redirect
;
405 SIZED_QString(cmdString
, MAX_FMTLEN
+strArg
.length());
406 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg
.latin1());
410 QString
GdbDriver::makeCmdString(DbgCommand cmd
, int intArg
)
412 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
413 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNum
);
415 SIZED_QString(cmdString
, MAX_FMTLEN
+30);
417 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg
);
421 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg
, int intArg
)
423 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
424 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argStringNum
||
425 cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNumString
||
429 normalizeStringArg(strArg
);
431 SIZED_QString(cmdString
, MAX_FMTLEN
+30+strArg
.length());
436 * intArg specifies which channels should be redirected to
437 * /dev/null. It is a value or'ed together from RDNstdin,
438 * RDNstdout, RDNstderr. We store the value for a later DCsetargs
441 * Note: We rely on that after the DCtty a DCsetargs will follow,
442 * which will ultimately apply the redirection.
444 static const char* const runRedir
[8] = {
448 " </dev/null >/dev/null",
450 " </dev/null 2>/dev/null",
452 " </dev/null >/dev/null 2>&1"
454 if (strArg
.isEmpty())
455 intArg
= 7; /* failsafe if no tty */
456 m_redirect
= runRedir
[intArg
& 7];
458 return makeCmdString(DCtty
, strArg
); /* note: no problem if strArg empty */
461 if (cmd
== DCexamine
) {
462 // make a format specifier from the intArg
463 static const char size
[16] = {
464 '\0', 'b', 'h', 'w', 'g'
466 static const char format
[16] = {
467 '\0', 'x', 'd', 'u', 'o', 't',
468 'a', 'c', 'f', 's', 'i'
470 assert(MDTsizemask
== 0xf); /* lowest 4 bits */
471 assert(MDTformatmask
== 0xf0); /* next 4 bits */
472 int count
= 16; /* number of entities to print */
473 char sizeSpec
= size
[intArg
& MDTsizemask
];
474 char formatSpec
= format
[(intArg
& MDTformatmask
) >> 4];
475 assert(sizeSpec
!= '\0');
476 assert(formatSpec
!= '\0');
477 // adjust count such that 16 lines are printed
478 switch (intArg
& MDTformatmask
) {
479 case MDTstring
: case MDTinsn
:
480 break; /* no modification needed */
482 // all cases drop through:
483 switch (intArg
& MDTsizemask
) {
495 spec
.sprintf("/%d%c%c", count
, sizeSpec
, formatSpec
);
497 return makeCmdString(DCexamine
, spec
, strArg
);
500 if (cmds
[cmd
].argsNeeded
== GdbCmdInfo::argStringNum
)
502 // line numbers are zero-based
503 if (cmd
== DCuntil
|| cmd
== DCbreakline
||
504 cmd
== DCtbreakline
|| cmd
== DCinfoline
)
508 if (cmd
== DCinfoline
)
510 // must split off file name part
511 int slash
= strArg
.findRev('/');
513 strArg
= strArg
.right(strArg
.length()-slash
-1);
515 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg
.latin1(), intArg
);
519 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg
, strArg
.latin1());
524 QString
GdbDriver::makeCmdString(DbgCommand cmd
, QString strArg1
, QString strArg2
)
526 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
527 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argString2
);
529 normalizeStringArg(strArg1
);
530 normalizeStringArg(strArg2
);
532 SIZED_QString(cmdString
, MAX_FMTLEN
+strArg1
.length()+strArg2
.length());
533 cmdString
.sprintf(cmds
[cmd
].fmt
, strArg1
.latin1(), strArg2
.latin1());
537 QString
GdbDriver::makeCmdString(DbgCommand cmd
, int intArg1
, int intArg2
)
539 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
540 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNum2
);
542 SIZED_QString(cmdString
, MAX_FMTLEN
+60);
543 cmdString
.sprintf(cmds
[cmd
].fmt
, intArg1
, intArg2
);
547 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, bool clearLow
)
549 assert(cmd
>= 0 && cmd
< NUM_CMDS
);
550 assert(cmds
[cmd
].argsNeeded
== GdbCmdInfo::argNone
);
553 m_haveCoreFile
= false;
556 return executeCmdString(cmd
, cmds
[cmd
].fmt
, clearLow
);
559 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg
,
562 return executeCmdString(cmd
, makeCmdString(cmd
, strArg
), clearLow
);
565 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, int intArg
,
569 return executeCmdString(cmd
, makeCmdString(cmd
, intArg
), clearLow
);
572 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg
, int intArg
,
575 return executeCmdString(cmd
, makeCmdString(cmd
, strArg
, intArg
), clearLow
);
578 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, QString strArg1
, QString strArg2
,
581 return executeCmdString(cmd
, makeCmdString(cmd
, strArg1
, strArg2
), clearLow
);
584 CmdQueueItem
* GdbDriver::executeCmd(DbgCommand cmd
, int intArg1
, int intArg2
,
587 return executeCmdString(cmd
, makeCmdString(cmd
, intArg1
, intArg2
), clearLow
);
590 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QueueMode mode
)
592 return queueCmdString(cmd
, cmds
[cmd
].fmt
, mode
);
595 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg
,
598 return queueCmdString(cmd
, makeCmdString(cmd
, strArg
), mode
);
601 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, int intArg
,
604 return queueCmdString(cmd
, makeCmdString(cmd
, intArg
), mode
);
607 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg
, int intArg
,
610 return queueCmdString(cmd
, makeCmdString(cmd
, strArg
, intArg
), mode
);
613 CmdQueueItem
* GdbDriver::queueCmd(DbgCommand cmd
, QString strArg1
, QString strArg2
,
616 return queueCmdString(cmd
, makeCmdString(cmd
, strArg1
, strArg2
), mode
);
619 void GdbDriver::terminate()
625 void GdbDriver::detachAndTerminate()
629 executeCmdString(DCinitialize
, "detach\nquit\n", true);
632 void GdbDriver::interruptInferior()
635 // remove accidentally queued commands
639 static bool isErrorExpr(const char* output
)
642 strncmp(output
, "Cannot access memory at", 23) == 0 ||
643 strncmp(output
, "Attempt to dereference a generic pointer", 40) == 0 ||
644 strncmp(output
, "Attempt to take contents of ", 28) == 0 ||
645 strncmp(output
, "Attempt to use a type name as an expression", 43) == 0 ||
646 strncmp(output
, "There is no member or method named", 34) == 0 ||
647 strncmp(output
, "A parse error in expression", 27) == 0 ||
648 strncmp(output
, "No symbol \"", 11) == 0 ||
649 strncmp(output
, "Internal error: ", 16) == 0;
653 * Returns true if the output is an error message. If wantErrorValue is
654 * true, a new VarTree object is created and filled with the error message.
655 * If there are warnings, they are skipped and output points past the warnings
656 * on return (even if there \e are errors).
658 static bool parseErrorMessage(const char*& output
,
659 VarTree
*& variable
, bool wantErrorValue
)
662 while (strncmp(output
, "warning:", 8) == 0)
664 char* end
= strchr(output
+8, '\n');
666 output
+= strlen(output
);
671 if (isErrorExpr(output
))
673 if (wantErrorValue
) {
674 // put the error message as value in the variable
675 variable
= new VarTree(QString(), VarTree::NKplain
);
676 const char* endMsg
= strchr(output
, '\n');
678 endMsg
= output
+ strlen(output
);
679 variable
->m_value
= FROM_LATIN1(output
, endMsg
-output
);
688 #if QT_VERSION >= 300
698 void GdbDriver::setPrintQStringDataCmd(const char* cmd
)
700 // don't accept the command if it is empty
701 if (cmd
== 0 || *cmd
== '\0')
703 assert(strlen(cmd
) <= MAX_FMTLEN
);
704 cmds
[DCprintQStringStruct
].fmt
= cmd
;
707 VarTree
* GdbDriver::parseQCharArray(const char* output
, bool wantErrorValue
, bool qt3like
)
709 VarTree
* variable
= 0;
712 * Parse off white space. gdb sometimes prints white space first if the
713 * printed array leaded to an error.
715 while (isspace(*output
))
718 // special case: empty string (0 repetitions)
719 if (strncmp(output
, "Invalid number 0 of repetitions", 31) == 0)
721 variable
= new VarTree(QString(), VarTree::NKplain
);
722 variable
->m_value
= "\"\"";
726 // check for error conditions
727 if (parseErrorMessage(output
, variable
, wantErrorValue
))
733 const char* p
= output
;
741 } while (isspace(*p
));
745 // this is the real data
751 enum { wasNothing
, wasChar
, wasRepeat
} lastThing
= wasNothing
;
753 * A matrix for separators between the individual "things"
754 * that are added to the string. The first index is a bool,
755 * the second index is from the enum above.
757 static const char* separator
[2][3] = {
758 { "\"", 0, ", \"" }, /* normal char is added */
759 { "'", "\", '", ", '" } /* repeated char is added */
762 while (isdigit(*p
)) {
765 unsigned short value
= (unsigned short) strtoul(p
, &end
, 0);
767 goto error
; /* huh? no valid digits */
768 // skip separator and search for a repeat count
770 while (isspace(*p
) || *p
== ',')
772 bool repeats
= strncmp(p
, "<repeats ", 9) == 0;
774 const char* start
= p
;
775 p
= strchr(p
+9, '>'); /* search end and advance */
779 repeatCount
= FROM_LATIN1(start
, p
-start
);
780 while (isspace(*p
) || *p
== ',')
783 // p is now at the next char (or the end)
785 // interpret the value as a QChar
786 // TODO: make cross-architecture compatible
792 (unsigned short&)ch
= value
;
796 ch
.setRow(c
.qch
.row
);
797 ch
.setCell(c
.qch
.cell
);
801 // escape a few frequently used characters
802 char escapeCode
= '\0';
803 switch (ch
.latin1()) {
804 case '\n': escapeCode
= 'n'; break;
805 case '\r': escapeCode
= 'r'; break;
806 case '\t': escapeCode
= 't'; break;
807 case '\b': escapeCode
= 'b'; break;
808 case '\"': escapeCode
= '\"'; break;
809 case '\\': escapeCode
= '\\'; break;
810 case '\0': if (value
== 0) { escapeCode
= '0'; } break;
814 result
+= separator
[repeats
][lastThing
];
816 if (escapeCode
!= '\0') {
822 // fixup repeat count and lastThing
825 result
+= repeatCount
;
826 lastThing
= wasRepeat
;
835 if (lastThing
== wasChar
)
839 variable
= new VarTree(QString(), VarTree::NKplain
);
840 variable
->m_value
= result
;
842 else if (strncmp(p
, "true", 4) == 0)
844 variable
= new VarTree(QString(), VarTree::NKplain
);
845 variable
->m_value
= "QString::null";
847 else if (strncmp(p
, "false", 5) == 0)
849 variable
= new VarTree(QString(), VarTree::NKplain
);
850 variable
->m_value
= "(null)";
857 if (wantErrorValue
) {
858 variable
= new VarTree(QString(), VarTree::NKplain
);
859 variable
->m_value
= "internal parse error";
864 static VarTree
* parseVar(const char*& s
)
873 VarTree::NameKind kind
;
874 if (!parseName(p
, name
, kind
)) {
882 TRACE(QString().sprintf("parse error: = not found after %s", (const char*)name
));
885 // skip the '=' and more whitespace
890 VarTree
* variable
= new VarTree(name
, kind
);
891 variable
->setDeleteChildren(true);
893 if (!parseValue(p
, variable
)) {
901 static void skipNested(const char*& s
, char opening
, char closing
)
905 // parse a nested type
909 * Search for next matching `closing' char, skipping nested pairs of
910 * `opening' and `closing'.
912 while (*p
&& nest
> 0) {
915 } else if (*p
== closing
) {
921 TRACE(QString().sprintf("parse error: mismatching %c%c at %-20.20s", opening
, closing
, s
));
927 * This function skips text that is delimited by nested angle bracktes, '<>'.
928 * A complication arises because the delimited text can contain the names of
929 * operator<<, operator>>, operator<, and operator>, which have to be treated
930 * specially so that they do not count towards the nesting of '<>'.
931 * This function assumes that the delimited text does not contain strings.
933 static void skipNestedAngles(const char*& s
)
938 p
++; // skip the initial '<'
939 while (*p
&& nest
> 0)
941 // Below we can check for p-s >= 9 instead of 8 because
942 // *s is '<' and cannot be part of "operator".
945 if (p
-s
>= 9 && strncmp(p
-8, "operator", 8) == 0) {
954 if (p
-s
>= 9 && strncmp(p
-8, "operator", 8) == 0) {
964 TRACE(QString().sprintf("parse error: mismatching <> at %-20.20s", s
));
970 * Find the end of line that is not inside braces
972 static void findEnd(const char*& s
)
975 while (*p
&& *p
!='\n') {
976 while (*p
&& *p
!='\n' && *p
!='{')
980 skipNested(p
, '{', '}'); p
--;
986 static bool isNumberish(const char ch
)
988 return (ch
>='0' && ch
<='9') || ch
=='.' || ch
=='x';
991 void skipString(const char*& p
)
996 while (*p
!= quote
) {
998 // skip escaped character
999 // no special treatment for octal values necessary
1002 // simply return if no more characters
1010 * Strings can consist of several parts, some of which contain repeated
1013 if (quote
== '\'') {
1014 // look ahaead for <repeats 123 times>
1015 const char* q
= p
+1;
1018 if (strncmp(q
, "<repeats ", 9) == 0) {
1020 while (*p
!= '\0' && *p
!= '>')
1023 p
++; /* skip the '>' */
1027 // is the string continued?
1029 // look ahead for another quote
1030 const char* q
= p
+1;
1033 if (*q
== '"' || *q
== '\'') {
1039 /* very long strings are followed by `...' */
1040 if (*p
== '.' && p
[1] == '.' && p
[2] == '.') {
1045 static void skipNestedWithString(const char*& s
, char opening
, char closing
)
1049 // parse a nested expression
1053 * Search for next matching `closing' char, skipping nested pairs of
1054 * `opening' and `closing' as well as strings.
1056 while (*p
&& nest
> 0) {
1057 if (*p
== opening
) {
1059 } else if (*p
== closing
) {
1061 } else if (*p
== '\'' || *p
== '\"') {
1068 TRACE(QString().sprintf("parse error: mismatching %c%c at %-20.20s", opening
, closing
, s
));
1073 inline void skipName(const char*& p
)
1075 // allow : (for enumeration values) and $ and . (for _vtbl.)
1076 while (isalnum(*p
) || *p
== '_' || *p
== ':' || *p
== '$' || *p
== '.')
1080 static bool parseName(const char*& s
, QString
& name
, VarTree::NameKind
& kind
)
1082 kind
= VarTree::NKplain
;
1085 // examples of names:
1088 // <string<a,b<c>,7> >
1091 skipNestedAngles(p
);
1092 name
= FROM_LATIN1(s
, p
- s
);
1093 kind
= VarTree::NKtype
;
1097 // name, which might be "static"; allow dot for "_vtbl."
1100 TRACE(QString().sprintf("parse error: not a name %-20.20s", s
));
1104 if (len
== 6 && strncmp(s
, "static", 6) == 0) {
1105 kind
= VarTree::NKstatic
;
1107 // its a static variable, name comes now
1113 TRACE(QString().sprintf("parse error: not a name after static %-20.20s", s
));
1118 name
= FROM_LATIN1(s
, len
);
1120 // return the new position
1125 static bool parseValue(const char*& s
, VarTree
* variable
)
1127 variable
->m_value
= "";
1131 // Sometimes we find the following output:
1132 // {<text variable, no debug info>} 0x40012000 <access>
1133 // {<data variable, no debug info>}
1134 // {<variable (not text or data), no debug info>}
1135 if (strncmp(s
, "{<text variable, ", 17) == 0 ||
1136 strncmp(s
, "{<data variable, ", 17) == 0 ||
1137 strncmp(s
, "{<variable (not text or data), ", 31) == 0)
1139 const char* start
= s
;
1140 skipNested(s
, '{', '}');
1141 variable
->m_value
= FROM_LATIN1(start
, s
-start
);
1142 variable
->m_value
+= ' '; // add only a single space
1150 if (!parseNested(s
, variable
)) {
1153 // must be the closing brace
1155 TRACE("parse error: missing } of " + variable
->getText());
1159 // final white space
1164 // examples of leaf values (cannot be the empty string):
1170 // (DwContentType&) @0x8123456: {...}
1174 // 0x823abc <Array<int> virtual table>
1175 // (void (*)()) 0x8048480 <f(E *, char)>
1178 // &parseP (HTMLClueV *, char *)
1179 // Variable "x" is not available.
1180 // The value of variable 'x' is distributed...
1181 // -nan(0xfffff081defa0)
1188 skipNested(p
, '(', ')');
1192 variable
->m_value
= FROM_LATIN1(s
, p
- s
);
1195 bool reference
= false;
1197 // skip reference marker
1201 const char* start
= p
;
1205 // some values consist of more than one token
1206 bool checkMultiPart
= false;
1208 if (p
[0] == '0' && p
[1] == 'x') {
1211 while (isxdigit(*p
))
1215 * Assume this is a pointer, but only if it's not a reference, since
1216 * references can't be expanded.
1219 variable
->m_varKind
= VarTree::VKpointer
;
1222 * References are followed by a colon, in which case we'll
1223 * find the value following the reference address.
1228 // Paranoia. (Can this happen, i.e. reference not followed by ':'?)
1232 checkMultiPart
= true;
1233 } else if (isdigit(*p
)) {
1234 // parse decimal number, possibly a float
1237 if (*p
== '.') { /* TODO: obey i18n? */
1238 // In long arrays an integer may be followed by '...'.
1239 // We test for this situation and don't gobble the '...'.
1240 if (p
[1] != '.' || p
[0] != '.') {
1247 if (*p
== 'e' || *p
== 'E') {
1250 if (*p
== '-' || *p
== '+')
1256 // for char variables there is the char, eg. 10 '\n'
1257 checkMultiPart
= true;
1258 } else if (*p
== '<') {
1259 // e.g. <optimized out>
1260 skipNestedAngles(p
);
1261 } else if (*p
== '"' || *p
== '\'') {
1262 // character may have multipart: '\000' <repeats 11 times>
1263 checkMultiPart
= *p
== '\'';
1266 } else if (*p
== '&') {
1270 while (isspace(*p
)) {
1274 skipNested(p
, '(', ')');
1276 } else if (strncmp(p
, "Variable \"", 10) == 0) {
1277 // Variable "x" is not available.
1278 p
+= 10; // skip to "
1280 if (strncmp(p
, "\" is not available.", 19) == 0) {
1283 } else if (strncmp(p
, "The value of variable '", 23) == 0) {
1286 const char* e
= strchr(p
, '.');
1293 // must be an enumeration value
1295 // hmm, not necessarily: nan (floating point Not a Number)
1296 // is followed by a number in ()
1298 skipNested(p
, '(', ')');
1300 variable
->m_value
+= FROM_LATIN1(start
, p
- start
);
1302 // remove line breaks from the value; this is ok since
1303 // string values never contain a literal line break
1304 variable
->m_value
.replace('\n', ' ');
1306 if (checkMultiPart
) {
1310 // may be followed by a string or <...>
1313 if (*p
== '"' || *p
== '\'') {
1315 } else if (*p
== '<') {
1316 // if this value is part of an array, it might be followed
1317 // by <repeats 15 times>, which we don't skip here
1318 if (strncmp(p
, "<repeats ", 9) != 0)
1319 skipNestedAngles(p
);
1322 // there is always a blank before the string,
1323 // which we will include in the final string value
1324 variable
->m_value
+= FROM_LATIN1(start
-1, (p
- start
)+1);
1325 // if this was a pointer, reset that flag since we
1326 // now got the value
1327 variable
->m_varKind
= VarTree::VKsimple
;
1331 if (variable
->m_value
.length() == 0) {
1332 TRACE("parse error: no value for " + variable
->getText());
1336 // final white space
1342 * If this was a reference, the value follows. It might even be a
1343 * composite variable!
1349 if (variable
->m_varKind
== VarTree::VKpointer
) {
1350 variable
->setDelayedExpanding(true);
1357 static bool parseNested(const char*& s
, VarTree
* variable
)
1359 // could be a structure or an array
1364 bool isStruct
= false;
1366 * If there is a name followed by an = or an < -- which starts a type
1367 * name -- or "static", it is a structure
1369 if (*p
== '<' || *p
== '}') {
1371 } else if (strncmp(p
, "static ", 7) == 0) {
1373 } else if (isalpha(*p
) || *p
== '_' || *p
== '$') {
1374 // look ahead for a comma after the name
1381 p
= s
; /* rescan the name */
1384 if (!parseVarSeq(p
, variable
)) {
1387 variable
->m_varKind
= VarTree::VKstruct
;
1389 if (!parseValueSeq(p
, variable
)) {
1392 variable
->m_varKind
= VarTree::VKarray
;
1398 static bool parseVarSeq(const char*& s
, VarTree
* variable
)
1400 // parse a comma-separated sequence of variables
1401 VarTree
* var
= variable
; /* var != 0 to indicate success if empty seq */
1405 if (strncmp(s
, "<No data fields>}", 17) == 0)
1407 // no member variables, so break out immediately
1408 s
+= 16; /* go to the closing brace */
1413 break; /* syntax error */
1414 variable
->appendChild(var
);
1417 // skip the comma and whitespace
1425 static bool parseValueSeq(const char*& s
, VarTree
* variable
)
1427 // parse a comma-separated sequence of variables
1432 name
.sprintf("[%d]", index
);
1433 VarTree
* var
= new VarTree(name
, VarTree::NKplain
);
1434 var
->setDeleteChildren(true);
1435 good
= parseValue(s
, var
);
1440 // a value may be followed by "<repeats 45 times>"
1441 if (strncmp(s
, "<repeats ", 9) == 0) {
1444 int l
= strtol(s
, &end
, 10);
1445 if (end
== s
|| strncmp(end
, " times>", 7) != 0) {
1446 // should not happen
1450 TRACE(QString().sprintf("found <repeats %d times> in array", l
));
1451 // replace name and advance index
1452 name
.sprintf("[%d .. %d]", index
, index
+l
-1);
1455 // skip " times>" and space
1457 // possible final space
1463 variable
->appendChild(var
);
1464 // long arrays may be terminated by '...'
1465 if (strncmp(s
, "...", 3) == 0) {
1467 VarTree
* var
= new VarTree("...", VarTree::NKplain
);
1468 var
->setDeleteChildren(true);
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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
+= " " + FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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
= FROM_LATIN1(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 bool GdbDriver::parsePrintExpr(const char* output
, bool wantErrorValue
, VarTree
*& var
)
2035 // check for error conditions
2036 if (parseErrorMessage(output
, var
, wantErrorValue
))
2040 // parse the variable
2041 var
= parseVar(output
);
2046 bool GdbDriver::parseChangeWD(const char* output
, QString
& message
)
2048 bool isGood
= false;
2049 message
= QString(output
).simplifyWhiteSpace();
2050 if (message
.isEmpty()) {
2051 message
= i18n("New working directory: ") + m_programWD
;
2057 bool GdbDriver::parseChangeExecutable(const char* output
, QString
& message
)
2061 m_haveCoreFile
= false;
2064 * Lines starting with the following do not indicate errors:
2065 * Using host libthread_db
2066 * (no debugging symbols found)
2068 while (strncmp(output
, "Using host libthread_db", 23) == 0 ||
2069 strncmp(output
, "(no debugging symbols found)", 28) == 0)
2071 // this line is good, go to the next one
2072 const char* end
= strchr(output
, '\n');
2074 output
+= strlen(output
);
2080 * If we've parsed all lines, there was no error.
2082 return output
[0] == '\0';
2085 bool GdbDriver::parseCoreFile(const char* output
)
2087 // if command succeeded, gdb emits a line starting with "#0 "
2088 m_haveCoreFile
= strstr(output
, "\n#0 ") != 0;
2089 return m_haveCoreFile
;
2092 uint
GdbDriver::parseProgramStopped(const char* output
, QString
& message
)
2094 // optionally: "program changed, rereading symbols",
2096 // "Program exited normally"
2097 // "Program terminated with wignal SIGSEGV"
2098 // "Program received signal SIGINT" or other signal
2101 // go through the output, line by line, checking what we have
2102 const char* start
= output
- 1;
2103 uint flags
= SFprogramActive
;
2104 message
= QString();
2106 start
++; /* skip '\n' */
2108 if (strncmp(start
, "Program ", 8) == 0 ||
2109 strncmp(start
, "ptrace: ", 8) == 0) {
2111 * When we receive a signal, the program remains active.
2113 * Special: If we "stopped" in a corefile, the string "Program
2114 * terminated with signal"... is displayed. (Normally, we see
2115 * "Program received signal"... when a signal happens.)
2117 if (strncmp(start
, "Program exited", 14) == 0 ||
2118 (strncmp(start
, "Program terminated", 18) == 0 && !m_haveCoreFile
) ||
2119 strncmp(start
, "ptrace: ", 8) == 0)
2121 flags
&= ~SFprogramActive
;
2125 const char* endOfMessage
= strchr(start
, '\n');
2126 if (endOfMessage
== 0)
2127 endOfMessage
= start
+ strlen(start
);
2128 message
= FROM_LATIN1(start
, endOfMessage
-start
);
2129 } else if (strncmp(start
, "Breakpoint ", 11) == 0) {
2131 * We stopped at a (permanent) breakpoint (gdb doesn't tell us
2132 * that it stopped at a temporary breakpoint).
2134 flags
|= SFrefreshBreak
;
2135 } else if (strstr(start
, "re-reading symbols.") != 0) {
2136 flags
|= SFrefreshSource
;
2139 // next line, please
2140 start
= strchr(start
, '\n');
2141 } while (start
!= 0);
2144 * Gdb only notices when new threads have appeared, but not when a
2145 * thread finishes. So we always have to assume that the list of
2146 * threads has changed.
2148 flags
|= SFrefreshThreads
;
2153 void GdbDriver::parseSharedLibs(const char* output
, QStrList
& shlibs
)
2155 if (strncmp(output
, "No shared libraries loaded", 26) == 0)
2158 // parse the table of shared libraries
2160 // strip off head line
2161 output
= strchr(output
, '\n');
2164 output
++; /* skip '\n' */
2166 while (*output
!= '\0') {
2167 // format of a line is
2168 // 0x404c5000 0x40580d90 Yes /lib/libc.so.5
2169 // 3 blocks of non-space followed by space
2170 for (int i
= 0; *output
!= '\0' && i
< 3; i
++) {
2171 while (*output
!= '\0' && !isspace(*output
)) { /* non-space */
2174 while (isspace(*output
)) { /* space */
2178 if (*output
== '\0')
2180 const char* start
= output
;
2181 output
= strchr(output
, '\n');
2183 output
= start
+ strlen(start
);
2184 shlibName
= FROM_LATIN1(start
, output
-start
);
2185 if (*output
!= '\0')
2187 shlibs
.append(shlibName
);
2188 TRACE("found shared lib " + shlibName
);
2192 bool GdbDriver::parseFindType(const char* output
, QString
& type
)
2194 if (strncmp(output
, "type = ", 7) != 0)
2198 * Everything else is the type. We strip off any leading "const" and any
2199 * trailing "&" on the grounds that neither affects the decoding of the
2200 * object. We also strip off all white-space from the type.
2203 if (strncmp(output
, "const ", 6) == 0)
2206 type
.replace(QRegExp("\\s+"), "");
2207 if (type
.endsWith("&"))
2208 type
.truncate(type
.length() - 1);
2212 void GdbDriver::parseRegisters(const char* output
, QList
<RegisterInfo
>& regs
)
2214 if (strncmp(output
, "The program has no registers now", 32) == 0) {
2221 // parse register values
2222 while (*output
!= '\0')
2224 // skip space at the start of the line
2225 while (isspace(*output
))
2229 const char* start
= output
;
2230 while (*output
!= '\0' && !isspace(*output
))
2232 if (*output
== '\0')
2234 regName
= FROM_LATIN1(start
, output
-start
);
2237 while (isspace(*output
))
2240 RegisterInfo
* reg
= new RegisterInfo
;
2241 reg
->regName
= regName
;
2244 * If we find a brace now, this is a vector register. We look for
2245 * the closing brace and treat the result as cooked value.
2250 skipNested(output
, '{', '}');
2251 value
= FROM_LATIN1(start
, output
-start
).simplifyWhiteSpace();
2252 // skip space, but not the end of line
2253 while (isspace(*output
) && *output
!= '\n')
2255 // get rid of the braces at the begining and the end
2257 if (value
[value
.length()-1] == '}') {
2258 value
= value
.left(value
.length()-1);
2260 // gdb 5.3 doesn't print a separate set of raw values
2261 if (*output
== '{') {
2262 // another set of vector follows
2263 // what we have so far is the raw value
2264 reg
->rawValue
= value
;
2267 skipNested(output
, '{', '}');
2268 value
= FROM_LATIN1(start
, output
-start
).simplifyWhiteSpace();
2271 // find first type that does not have an array, this is the RAW value
2272 const char* end
=start
;
2274 const char* cur
=start
;
2276 while (*cur
!= '=' && cur
<end
)
2279 while (isspace(*cur
) && cur
<end
)
2281 if (isNumberish(*cur
)) {
2283 while (*end
&& (*end
!='}') && (*end
!=',') && (*end
!='\n'))
2285 QString rawValue
= FROM_LATIN1(cur
, end
-cur
).simplifyWhiteSpace();
2286 reg
->rawValue
= rawValue
;
2288 if (rawValue
.left(2)=="0x") {
2289 // ok we have a raw value, now get it's type
2291 while (isspace(*end
) || *end
=='=') end
--;
2294 while (*cur
!='{' && *cur
!=' ')
2297 reg
->type
=FROM_LATIN1(cur
, end
-cur
);
2304 // skip to the end of line
2305 while (*output
!= '\0' && *output
!= '\n')
2307 // get rid of the braces at the begining and the end
2309 if (value
[value
.length()-1] == '}') {
2310 value
= value
.left(value
.length()-1);
2313 reg
->cookedValue
= value
;
2317 // the rest of the line is the register value
2319 output
= strchr(output
,'\n');
2321 output
= start
+ strlen(start
);
2322 value
= FROM_LATIN1(start
, output
-start
).simplifyWhiteSpace();
2325 * We split the raw from the cooked values.
2326 * Some modern gdbs explicitly say: "0.1234 (raw 0x3e4567...)".
2327 * Here, the cooked value comes first, and the raw value is in
2330 int pos
= value
.find(" (raw ");
2333 reg
->cookedValue
= value
.left(pos
);
2334 reg
->rawValue
= value
.mid(pos
+6);
2335 if (reg
->rawValue
.right(1) == ")") // remove closing bracket
2336 reg
->rawValue
.truncate(reg
->rawValue
.length()-1);
2341 * In other cases we split off the first token (separated by
2342 * whitespace). It is the raw value. The remainder of the line
2343 * is the cooked value.
2345 int pos
= value
.find(' ');
2347 reg
->rawValue
= value
;
2348 reg
->cookedValue
= QString();
2350 reg
->rawValue
= value
.left(pos
);
2351 reg
->cookedValue
= value
.mid(pos
+1);
2355 if (*output
!= '\0')
2356 output
++; /* skip '\n' */
2362 bool GdbDriver::parseInfoLine(const char* output
, QString
& addrFrom
, QString
& addrTo
)
2364 // "is at address" or "starts at address"
2365 const char* start
= strstr(output
, "s at address ");
2370 const char* p
= start
;
2371 while (*p
!= '\0' && !isspace(*p
))
2373 addrFrom
= FROM_LATIN1(start
, p
-start
);
2375 start
= strstr(p
, "and ends at ");
2383 while (*p
!= '\0' && !isspace(*p
))
2385 addrTo
= FROM_LATIN1(start
, p
-start
);
2390 void GdbDriver::parseDisassemble(const char* output
, QList
<DisassembledCode
>& code
)
2394 if (strncmp(output
, "Dump of assembler", 17) != 0) {
2398 code
.append(new DisassembledCode(c
));
2402 // remove first line
2403 const char* p
= strchr(output
, '\n');
2405 return; /* not a regular output */
2410 const char* end
= strstr(output
, "End of assembler");
2412 end
= p
+ strlen(p
);
2416 // remove function offsets from the lines
2419 const char* start
= p
;
2421 while (p
!= end
&& !isspace(*p
))
2423 address
= FROM_LATIN1(start
, p
-start
);
2425 // function name (enclosed in '<>', followed by ':')
2426 while (p
!= end
&& *p
!= '<')
2429 skipNestedAngles(p
);
2434 while (p
!= end
&& isspace(*p
))
2437 // code until end of line
2439 while (p
!= end
&& *p
!= '\n')
2441 if (p
!= end
) /* include '\n' */
2444 DisassembledCode
* c
= new DisassembledCode
;
2445 c
->address
= address
;
2446 c
->code
= FROM_LATIN1(start
, p
-start
);
2451 QString
GdbDriver::parseMemoryDump(const char* output
, QList
<MemoryDump
>& memdump
)
2453 if (isErrorExpr(output
)) {
2454 // error; strip space
2455 QString msg
= output
;
2456 return msg
.stripWhiteSpace();
2459 const char* p
= output
; /* save typing */
2465 const char* start
= p
;
2466 while (*p
!= '\0' && *p
!= ':' && !isspace(*p
))
2468 addr
= FROM_LATIN1(start
, p
-start
);
2470 // parse function offset
2474 while (*p
!= '\0' && !(*p
== ':' && isspace(p
[1])))
2476 addr
.fnoffs
= FROM_LATIN1(start
, p
-start
);
2480 // skip space; this may skip a new-line char!
2483 // everything to the end of the line is the memory dump
2484 const char* end
= strchr(p
, '\n');
2486 dump
= FROM_LATIN1(p
, end
-p
);
2489 dump
= FROM_LATIN1(p
, strlen(p
));
2492 MemoryDump
* md
= new MemoryDump
;
2501 QString
GdbDriver::editableValue(VarTree
* value
)
2503 const char* s
= value
->m_value
.latin1();
2505 // if the variable is a pointer value that contains a cast,
2508 skipNested(s
, '(', ')');
2515 const char* start
= s
;
2517 if (strncmp(s
, "0x", 2) == 0)
2520 while (isxdigit(*s
))
2524 * What we saw so far might have been a reference. If so, edit the
2525 * referenced value. Otherwise, edit the pointer.
2533 // if it's a pointer to a string, remove the string
2534 const char* end
= s
;
2539 return FROM_LATIN1(start
, end
-start
);
2542 return FROM_LATIN1(start
, strlen(start
));
2546 // else leave it unchanged (or stripped of the reference preamble)
2550 QString
GdbDriver::parseSetVariable(const char* output
)
2552 // if there is any output, it is an error message
2553 QString msg
= output
;
2554 return msg
.stripWhiteSpace();
2558 #include "gdbdriver.moc"