2 2 3 dbxtool dbx (GUI) dbxtool dbx C++ Oracle Solaris Studio 12.2 examples/debugger/debug_tutorial 1. cp -r /opt/solstudio12.2/examples/de

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1 Oracle Solaris Studio 12.2 dbxtool

2 2 2 3 dbxtool dbx (GUI) dbxtool dbx C++ Oracle Solaris Studio 12.2 examples/debugger/debug_tutorial 1. cp -r /opt/solstudio12.2/examples/debugger/debug_tutorial ~/debug_tutorial 2. make CC -g -c main.cc CC -g -c interp.cc CC -g -c cmd.cc CC -g -c debugger.cc CC -g -c cmds.cc CC -g main.o interp.o cmd.o debugger.o cmds.o -o a.out cmd.h cmd.cc Cmd interp.h interp.cc Interp debugger.h debugger.cc Debugger cmds.h cmds.cc main.h main.cc main() Interp Interp Interp dbx $ a.out > exec date Sun Jun 21 16:13:06 PDT 2009 > display var will display var > stop in X > run running... Oracle Solaris Studio 12.2 dbxtool 2

3 stopped in X var={ a = 100 b = 101 c = <error> d = 102 e = 103 f = 104 } > quit Goodby $ dbxtool dbxtool installation_directory/bin/dbxtool dbxtool Web dbxtool dbxtool : Oracle Solaris Studio 12.2 dbxtool 3

4 (Small Toolbar Icons) (Call Stack) : 1. (Call Stack) 2. (Call Stack) (Call Stack) Oracle Solaris Studio 12.2 dbxtool 4

5 3. (Call Stack) (Call Stack) (Call Stack) (Call Stack) 4. Oracle Solaris Studio 12.2 dbxtool 5

6 (Breakpoints) : 1. (Breakpoints) 2. (Breakpoints) Oracle Solaris Studio 12.2 dbxtool 6

7 (Process I/O) : 1. (Process I/O) dbxtool dbxtool 2. dbxtool (Process I/O) (Process I/O) (Dock window) (Editor) 1. (Tools) > (Options) 2. (Options) (Fonts & Colors) 3. (Syntax) (Languages) 4. (Font) 5. (Font Chooser) OK 6. (Options) OK dbx (Dbx Console) ( I/O) ANSI 1. (Tools) > (Options) 2. (Options) (Miscellaneous) 3. (Terminal) 4. (Font Size) (To Type) 5. OK dbxtool $ a.out > display var will display var > Segmentation Fault (core dumped) $ dbxtool $ dbxtool a.out core Oracle Solaris Studio 12.2 dbxtool 7

8 dbxtool dbx dbxtool Oracle Solaris Studio 12.2 dbxtool 8

9 Dbx (Dbx Console) Oracle Solaris Studio 12.2 dbxtool 9

program terminated by signal SEGV (no mapping at fault address) 0xff0318f0: strcmp+0x0170: ld [%ol], %gl Current function is Interp::find strcmp() SEGV dbx

10 program terminated by signal SEGV (no mapping at fault address) 0xff0318f0: strcmp+0x0170: ld [%ol], %gl Current function is Interp::find strcmp() SEGV dbx (Call Stack) (Call Stack) strcmp() 2 0x0 name NULL (Editor) strcmp() ( ) dbx stack_verbose.dbxrc (Call Stack) (Verbose) Oracle Solaris Studio 12.2 dbxtool 10

11 strcmp() (Variables) (Variables) Oracle Solaris Studio 12.2 dbxtool 11

12 name NULL SEGV (*cp)->name() (Variables) cp (cp*) name "quit" *cp.dbxrc dbx output_inherited_members (Inherited Members) (Editor) strcmp() name name NULL Oracle Solaris Studio 12.2 dbxtool 12

13 (*cp)->name() (Editor) name NULL Interp::find() (Debug) > (Stack) > (Make Caller Current) (Make Caller Current) Oracle Solaris Studio 12.2 dbxtool 13

14 (Call Stack) Interp::dispatch() (Editor) argv[0] NULL Oracle Solaris Studio 12.2 dbxtool 14

15 (Process I/O) dbxtool 1. (Run) Dbx (Dbx Console) run 2. (Process I/O) SEGV 3. (Discard and Pause) (Editor) Interp::find() strcmp() 4. (Make Caller Current) Interp::dispatch() find() (Show Line Numbers) 127 Oracle Solaris Studio 12.2 dbxtool 15

16 1. (Editor) Interp::dispatch 2. (Debug) > (New Breakpoint) (New Breakpoint) (New Breakpoint) Oracle Solaris Studio 12.2 dbxtool 16

17 (Function) 3. OK dbx Dbx (Dbx Console) stop in (dbx) stop in dispatch (4) stop in Interp::dispatch(char*) (dbx) Interp::dispatch Oracle Solaris Studio 12.2 dbxtool 17

18 (Breakpoints) 1. (Breakpoints) ) 2. 1 (Delete) dbx Dbx (Dbx Console) si dispatch si stop in dbx dbx ~/.dbxrc alias si stop in alias sa stop at alias s step alias n next alias r run (Breakpoint) interp.cc:127 ( (Breakpoint) (GoTo Source) 127 ) dbxtool Oracle Solaris Studio 12.2 dbxtool 18

19 Interp::dispatch() (Run) (Process I/O) dispatch() culprit find() argv[0] argv 1. (Editor) argv 2. (Debug) > New Watch New Watch New Watch 3. OK 4. Window > Watches Watches 5. argv Oracle Solaris Studio 12.2 dbxtool 19

20 argv 6. (Step Over) 2 PC int argc = 0; 7. argc argv 8. argc Watches argv Name ( ) 9. (Step Over) argc 0 Oracle Solaris Studio 12.2 dbxtool 20

21 10. strtok() (Step Over) NULL strtok() strtok (3) DELIMETERS/ 1 line 11. Step Over argv strtok() ( ) NULL 12. find() Signal Caught Discard and Pause Oracle Solaris Studio 12.2 dbxtool 21

22 13. Interp::dispatch find() a. (Make Caller Current) b. find() c. (Breakpoints) Interp::dispatch () dbxtool d Run Process I/O find() ( Run ) Oracle Solaris Studio 12.2 dbxtool 22

23 dbxtool Run dbx ( ) dbxtool 15. strtok() NULL argv[0] NULL 44 Interp::dispatch() Oracle Solaris Studio 12.2 dbxtool 23

24 dbx in in display nonexistent_var # should yield an error display var stop in X # will cause one "stopped" message and display stop in Y # will cause second "stopped" message and display run cont cont run cont cont $ a.out < in > display nonexistent_var error: Don t know about nonexistent_var > display var will display var > stop in X > stop in Y > run running... stopped in X var={ a = 100 b = 101 c = <error> d = 102 e = 103 f = 104 } > cont stopped in Y var={ a = 105 b = 106 c = <error> d = 107 e = 108 f = 109 } > cont exited > run running... stopped in X var={ a = 110 b = 111 error: cannot get value of var.c c = <error> Oracle Solaris Studio 12.2 dbxtool 24

25 d = 112 e = 113 f = 114 } > cont stopped in Y var={ a = 115 b = 116 error: cannot get value of var.c c = <error> d = 117 e = 118 f = 119 } > cont exited Goodby 1 c <error> 2 error: cannot get value of var.c error() err_silent c= <error> 1: Run) Debug > Debug Executable 3. Debug Executable 4. Arguments <in 5. Run Directory 6. Debug Oracle Solaris Studio 12.2 dbxtool 25

26 Arguments (Environment) Debug > (Configure Current Session) dbxtool Debug > Debug Recent) dbx Continue Run 2: error() 33 dbx Dbx Console Editor (dbx) func error func Oracle Solaris Studio 12.2 dbxtool 26

27 1. 33 Editor 2. Run in > display var # should yield an error error() Oracle Solaris Studio 12.2 dbxtool 27

28 3. Continue 3: Continue > display var # should yield an error Breakpoints Customize 2. Customize Breakpoint Count Limit 2 3. OK Oracle Solaris Studio 12.2 dbxtool 28

29 4: 2 error() error() Customize Breakpoint Count Limit Always stop Run error() 2 1 Oracle Solaris Studio 12.2 dbxtool 29

30 2 runprogram ( [7]) Customize Breakpoint While In runprogram Oracle Solaris Studio 12.2 dbxtool 30

31 5: err_silent >0 err_silent 31 err_silent Oracle Solaris Studio 12.2 dbxtool 31

32 err_silent (Make Caller Current) 2 evaluatefield() evaluatefieldprepare() err_silent Make Caller Current printfield() err_silent printfield() printfieldprepare() err_silent Oracle Solaris Studio 12.2 dbxtool 32

33 err_silent++ err_silent-- printfieldprepare() evaluatefieldprepare() err_silent printfield() printfield () printfield() 6: printfield() 1. printfield() (New Breakpoint) 2. (Function) printfield 3. OK Oracle Solaris Studio 12.2 dbxtool 33

34 4. Run var.a err_silent 0 Oracle Solaris Studio 12.2 dbxtool 34

35 5. Continue err_silent 6. Continue err_silent printfield() printfield 1. printfield() Customize Breakpoint (Count Limit) infinity Oracle Solaris Studio 12.2 dbxtool 35

36 2. Breakpoints a. Breakpoints (Change Visible Columns) b. (Count) (Limit) (While In) c. OK Oracle Solaris Studio 12.2 dbxtool 36

3. error() runprogram() 4. printfield() 15 5.

37 3. error() runprogram() 4. printfield() Count Limit (Use current Count value) printfield() 6: err_silent -1 printfield() err_silent-- err_silent++ err_silent Oracle Solaris Studio 12.2 dbxtool 37

38 err_silent++; err_silent--; err_silent++; err_silent--; err_silent 7: err_silent 1. err_silent (New Breakpoint) 2. (Settings) (Address) & err_silent 3. (When) (After) 4. Operation Write 5. OK Oracle Solaris Studio 12.2 dbxtool 38

39 6. init() err_silent 1 7. Continue init() 8. Continue init() 9. Continue init() 10. Continue stopin() -1s err_silent -1-1 (Continue) 8: 1. Breakpoint (After) (write) Customize 2. (After) (When) err_silent (After) 3. (Condition) err_silent == OK Oracle Solaris Studio 12.2 dbxtool 39

40 checkthings() err_silent -1 err_silent++ err_silent else Oracle Solaris Studio 12.2 dbxtool 40

41 9: else 1 checkthings() checkthings() checkthings() Debug > Stack > (Pop Topmost Call) (Pop Topmost Call) err_silent checkthings() checkthings() (Step Into) checkthings() checkthings()() if err_silent -1 Oracle Solaris Studio 12.2 dbxtool 41

42 10: 1. err_silent++ if Oracle Solaris Studio 12.2 dbxtool 42

43 2. Debug > (Apply Code Changes) 3. printfield error() 4. error() Oracle Solaris Studio 12.2 dbxtool 43

15 15 NULL SEGV 1. 2. (Debug Executable) <in 3.

44 15 15 NULL SEGV (Debug Executable) <in 3. interp.cc 130 Oracle Solaris Studio 12.2 dbxtool 44

45 4. Breakpoints ( ) Customize 5. Customize Breakpoint Condition token == 0 6. (Action) Run Script 7. Script assign token = line assign token = "dummy" dbx dummy line "" Oracle Solaris Studio 12.2 dbxtool 45

46 8. OK dbxtool dbx when at "interp.cc":130 -if token == 0 { assign token = line; } Oracle Solaris Studio 12.2 dbxtool 46

47 Copyright 2010 U.S. GOVERNMENT RIGHTS Programs, software, databases, and related documentation and technical data delivered to U.S. Government customers are commercial computer software or commercial technical data pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, duplication, disclosure, modification, and adaptation shall be subject to the restrictions and license terms set forth in the applicable Government contract, and, to the extent applicable by the terms of the Government contract, the additional rights set forth in FAR , Commercial Computer Software License (December 2007). Oracle America, Inc., 500 Oracle Parkway, Redwood City, CA redundancy Oracle Java Oracle Corporation AMD Opteron AMD AMD Opteron Advanced Micro Devices, Inc. Intel Intel Xeon Intel Corporation SPARC SPARC International, Inc. UNIX X/Open Company, Ltd Oracle Corporation 500 Oracle Parkway, Redwood City, CA U.S.A.

Copyright Oracle Parkway, Redwood City, CA U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated softw

Copyright Oracle Parkway, Redwood City, CA U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated softw Oracle Solaris Studio 12.3 Part No: E26466 2011 12 Copyright 2011 500 Oracle Parkway, Redwood City, CA 94065 U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software,