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- DEBUG.TXT Copyright (c) 1996 xTech Ltd
- ----------------------------------------------------------------
-
- 1. Using third-party debuggers
-
- XDS produces machine code of high efficiency due to advanced code
- generation scheme but it makes very difficult to provide adequate
- debugging information. Now XDS compiler can output in an object file
- line numbers of the source file and information on program procedures
- and global variables. When appropriate options switched on, compiler
- generates object files with debugging information in well known
- CodeView format.
-
- So you can use any debugger accepting this information. We have
- experience with Watcom's debugger WD and IBM's debugger IPMD.
- In the first case you have to link executable by Watcom's linker
- WLINK (don't fogget to include option "debug codeview") and
- then process EXE-file by CVPACK utility.
- In the second case you have to use LINK386 with option /CO.
-
- Note that lacks in debugging information restricts some features
- of the debuggers.
-
-
- 2. Obtaining a call chain in the case of a program crash
-
- XDS run-time support system includes special subroutine wich generates
- "errinfo.xds" file in the current directory on any abnormal program
- termination. This file includes name of EXE-file and a call chain at
- the moment of crash. HIS utility (C:\XDS\BIN\his.exe) decodes this
- information using program's map-file and outputs a list of procedure
- calls in the terms of source file names and line numbers.
-
-
- Related compiler option:
-
- +LINENO - to include source file line numbers in the object file
-
- +GENDEBUG - to include debuggin information on program procedures
- and global variables
-
- +GENHISTORY - to include in MAIN module of a program call to RTS sub-
- routine whitch generates "errinfo.xds" on any crash of
- your program. This file contains a sequence of procedure
- calls at the program abortation.
-
- BTW: Does anybody know of the structure of debugging info in EXE-file
- produced by LINK386 ? This type of structure does not defined in
- documents we have. The knowlege of this structure will make our
- and YOUR life with XDS a bit easier. :)
-
- [end of document]