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- /*************************************************************************/
- TURBO DEBUGGER
- Turbo Debugger Readme file
-
- This file discusses the following Turbo Debugger related topics:
-
- 1. Using TDW with Borland C++ and Borland Pascal
- 2. New tools
- 3. Debugging throw calls
- 4. Debugging under Windows 32s
- 5. Corrupt session state files
- 6. Using TD.EXE in a Windows DOS box
- 7. Debugging multiple applications using TDW
- 8. TDW and <Ctrl><Alt><SysReq>
- 9. TDW and TD32s' Icons
- 10. Resetting an application that's running under TDW
- 11. Resetting a process that's attached to TD32
- 12. Network messages and TDW and TD32
- 13. Debugging DLL's via LoadLibrary under WIndows
- 14. PENDING activity indicator
- 15. TDW Video Support with Resource intensive applications
- 16. TDW & The Integrated Debugger with PC Tools for Windows version 1.0.
-
-
- 1. Using TDW with Borland C++ and Borland Pascal
- ------------------------------------------------
- If you have both Borland C++ and Borland Pascal installed on your system:
-
- You cannot run both versions of TDW simultaneously. TDW 3.1 must be
- run to debug your Borland Pascal programs, and TDW 4.0 must be run
- to debug Borland C++ programs.
-
- Make sure that old copies of TDW.INI are removed from your system
- (run the TDWINI.EXE utility to clean up old TDW.INI files).
-
- If you wish to use TDWGUI.DLL with TDW version 3.1 you need to
- manually add UseTimer=Yes to the VideoOptions section of TDW.INI.
- Note that this option should not be set when using TDW version 4.0.
- This means that you would need to hand change your TDW.INI file each
- time you switched between versions of TDW. For this reason, we
- recommend the non-windowed video DLLs (such as SVGA.DLL) for
- customers who debug both BP and BC applications.
-
- Check the [386Enh] section in your Windows SYSTEM.INI file for
- multiple entries for the device TDDEBUG.386. Remove duplicate
- entries of TDDEBUG.386 so that only the version from Borland C++
- is loaded. On disk, you may also want to rename or remove the BP7
- versions of TDDEBUG.386 and TDWIN.DLL to avoid their accidental loading.
- You must restart Windows after making changes to system.ini.
-
-
- 2. New tools
- ------------
- The 16-bit linker now handles symbol tables larger than 64K in the
- debug information for an .exe file. This change required a modification
- to the format of the debug information generated by the linker. As a
- result, the following tools have been updated to correspond to this
- TLINK modification:
-
- TDW, TDUMP, TDUMP32, the IDE Debugger, the IDE Browser
-
- If you attempt to use any of the new tools with old executable files,
- they will output an error message and refuse to run. To work around this
- condition, relink your application using the new TLINK.EXE. However, if you
- use an old version of TDUMP (or TDUMP32) it checks for version 4.0 and later.
- If TDUMP generates garbage when dump an executable file, check the symbolic
- debug version number contained in the header. If it is version 4.01, make sure
- that you are using the correct version of TDUMP (TDUMP prints out "Version 4.1"
- in the banner when you run them).
-
-
- 3. Debugging throw calls
- ------------------------
- If you step over or into a throw() call, the application will run until it
- reaches a breakpoint or program termination instead of stopping at the
- appropriate catch() function. To debug catch() functions, set breakpoints
- within the functions.
-
-
- 4. Debugging under Windows 32s
- ------------------------------
- a) To use TD32 under Windows 3.1, you must have Win32s installed. Win32s
- is usually installed at the same time you install BC4. If Win32s is not
- properly installed, TD32 will not run under Windows 3.1. To verify that
- Win32s is properly installed, run the Freecell application supplied with
- Win32s.
-
- b) Because Win32s does not run under Windows 3.0, TD32 is not compatible
- with Windows 3.0.
-
- c) TD32 can support dual monitor debugging under Win32s. Ensure that
- a monochrome adapter is installed in your machine and set the
- [VideoOptions] section of TDW.INI to the following setting:
-
- [VideoOptions]
- MONO=yes
-
- This operation can be performed automatically by using the TDWINI.EXE Video
- Configuration Utility and selecting the Mono option in the SVGA.DLL Settings
- Dialog.
-
- e) You cannot trace into Windows kernel code when you debug with TD32 under
- Win32s. TD32 steps over any call that steps into the kernel code. If you
- attempt to step into a statement that does not have debug information, and
- that statement calls the kernel code, TD32 will not perform a Screen Swap
- unless Display Options are set to Always or unless you are using the
- TDWGUI.DLL video driver.
-
- f) See the online text file TD_HELP!.TXT for more information on
- using TD32 and TDW.
-
-
- 5. Corrupt session state files
- ------------------------------
- If your machine locks up while you are debugging a Windows application,
- it is best to delete any session state files before restarting the debugger.
- This can be done by either deleting the session state files or by starting
- the debugger with the -jn command-line option.
-
-
- 6. Using TD.EXE in a Windows DOS box
- ---------------------------------------
- The TD.PIF file included with the BC4 installation insures the proper
- settings for running the DOS based Turbo Debugger (TD.EXE) in a Windows
- DOS box. If need be, you can create this .pif file using Window's Pif
- editor, and setting the following values:
-
- Program Filename: TD.EXE
- Window Title: Turbo Debugger for DOS
- Video Memory: Text
- Memory Requirements: 128 -1
- EMS: 0 -1
- XMS Memory 0 3096
- Execution: Background & Exclusive enabled
- ( required for Dual Monitor debugging )
-
- Close Window on Exit.
-
- Advanced Options:
- Memory Options: Lock Application Memory.
- Display Options: Retain Video Memory.
-
- TD in a DOS Box requires heavy use of a GDI resources. Running with a high
- resolution video driver on some video adapters with multiple applications
- running may result in an inability to display High Resolution Graphics. If this
- is the case, close down one or more of the Windows applications that are
- currently running.
-
- 7. Debugging multiple applications using TDW
- --------------------------------------------
- You can debug multiple applications under TDW as follows:
-
- 1. Load the first program to be debugged into TDW.
-
- 2. Once the application is loaded, press the F3 key to
- display the Load Module Source or DLL Symbols dialog box.
-
- 3. In the DLL Name text entry box, enter the name of the
- .EXE or DLL to add. If the .EXE or DLL resides in
- another directory, you need to provide the full path.
-
- 4. Press <Enter>. TDW adds the program name to the
- DLLs & Programs list box and puts the !! symbol after it.
-
- 5. Close the Load Module Source or DLL dialog box, return to
- the Module window, and set any necessary breakpoints in
- the first program.
-
- 6. Press F9 to run the first program.
-
- 7. Switch to the Windows Program Manager while the first
- program is running and run the second program in the
- usual way.
-
- 8. You see the display switch back to TDW with the CPU
- window showing the start-up information of the second
- application. Close the CPU window.
-
- 9. In the Module window, set any necessary breakpoints in
- the second application, then press the F9 key to run it.
-
- This method is useful for debugging DDE conversations or any
- other inter-program communication in the Windows environment
- (such as OLE).
-
-
- 8. TDW and <Ctrl><Alt><SysReq>
- ------------------------------
- When you're debugging with TDW, you can press <Ctrl><Alt><SysReq> to
- interrupt the application being debugged and to return control to the TDW.
- However, the behavior in TDW 4.0 has changed slightly to accommodate the
- use of Microsoft's TOOLHELP.DLL. If your application is idle when you
- interrupt its execution, TDW posts a WM_NULL message to the application
- to "wake it up" so it can respond to the interrupt. Because of this, you
- may need to press <Ctrl><Alt><SysReq> a number of times before you get a
- response from the application being debugged.
-
-
- 9. TDW and TD32s' Icons
- -----------------------
- The Working Directory settings in the Turbo Debugger icons have been slightly
- changed. To accommodate for DLLs in the working directory of the application
- being debugged, TDW & TD32 set the working directory to the directory used
- in the Command Line input box. Because of this, TDW and TD32 ignores any
- directories input into the Working Directory input box. You can work around
- this by using the -t command line option without supplying a path. Foe example
-
- TDW -t MYAPP.EXE
-
- In this case, the debugger uses the icon property's working directory, but it
- will not be able to find the applications DLLs.
-
-
- 10. Resetting an application that's running under TDW
- -----------------------------------------------------
- If you reset TDW before running the application you're debugged runs to
- completion, Windows will not free the applications resources. To prevent
- this from occurring, run the application being debugged to completion
- before restating it. Resources are freed by Windows only when an application
- has been terminated via a WM_QUIT message.
-
-
- 11. Resetting a process that's attached to TD32
- -----------------------------------------------
- TD32 cannot reset a process which you have attached to using the File|Attach
- command. If you reset or terminate a process that you attached to, you must
- start a new debugging session.
-
-
- 12. Network messages and TDW and TD32
- -------------------------------------
- Network message broadcasts must be disabled when you run either TDW or TD32.
- It is recommended that you disable message broadcasts from your Windows
- Network dialog in the Control Panel.
-
-
- 13. Debugging DLL's via LoadLibrary under WIndows
- -------------------------------------------------
- If you debug a DLL with debug information inside TDW and the source for the DLL
- resides in a different directory, make sure that TDW's <Option><Path to Source>
- includes the directory where the DLL source is located.
-
-
- 14. PENDING activity indicator
- ------------------------------
- The PENDING activity indicator was omitted from page 52 of the Turbo Debugger
- User's Guide. It is documented in the section "Controlling Program
- Execution" on page 28.
-
- 15. TDW Video Support with Resource intensive applications
- ----------------------------------------------------------
- SVGA.DLL performs a mode switch using the DDK API calls Death & Resurrection.
- In applications that use resources intensely ( e.g. BCW4.0 ) the Death &
- Resurrection calls fail inside certain Windows Display Drivers, this is a
- problem with the Windows Display Driver. If you encounter such behavior change
- the TDW.INI settings using TDWINI.EXE for SVGA.DLL to:
- Use Documented Mode Switch.
- Restart GDI when Debugger exits.
-
- As an alternative we recommend that you change your Video DLL to TDWGUI.DLL.
-
- 16. TDW & The Integrated Debugger with PC Tools for Windows version 1.0.
- ------------------------------------------------------------------------
- TDW & the Integrated Debugger are not 100% compatible with PC Tools for Windows
- 1.0. The known problems inside TDW are resetting & reloading applications
- causing random General Protection Faults.
- When debugging an application with the Integrated Debugger, random General
- Protection Faults occur which would not occur if run without the debugger.
- Central Point has acknowledged this incompatibility.
-
- /***************************** END OF FILE *******************************/
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