Native Inspect Manual (H06.03+)
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 Introducing Native Inspect
- Native Inspect on TNS/E Systems
- Debuggers on NonStop TNS/E Systems
- Origins of Native Inspect
- Process Debugging With Native Inspect
- Debugging Multiple Processes
- Global Debugging
- Debugging TNS Processes
- Snapshot File Analysis
- Debugging DLLs
- Handling Events
- Switching Debuggers (To or From Inspect and Visual Inspect)
- Stopping Native Inspect
- Differences Between Native Inspect and WDB and GDB
- 2 Using Native Inspect
- Quick Start for Inspect Users
- Preparing to Debug Using Native Inspect
- Sample Native Inspect Session
- Start Your Program Under Native Inspect
- Load Symbols
- Determine Compilation-Time Source Name
- Set Source Name Mapping
- Add Current Directory to Source Search Path
- List Source
- Set a Breakpoint on main()
- Continue Execution
- Trace the Stack (Back Trace)
- List Source
- Step Execution (Over Any Function Calls)
- Print a Variable
- Step Execution (Over Any Function Calls)
- Step In to a Called Function
- Set a Memory Access Breakpoint (MAB)
- Trace the Stack (Back Trace)
- List Source
- Continue Listing Source
- Set a Breakpoint on Line 52
- Continue Execution
- Display a Structure
- Enable “pretty” Printing
- Modify a Structure Field
- Terminate Program and Session
- 3 Syntax of Native Inspect Commands
- Categories of Native Inspect Commands
- Syntax of Common Command Elements
- # command
- a command
- add-symbol-file command
- amap command
- attach command
- base command
- break command, tbreak command
- bt command
- can command
- cd command
- commands command
- comment command
- condition command
- continue command
- d command
- delete command
- delete display command
- detach command
- dir command
- disable command
- disable display command
- disassemble command, da command
- display command
- dmab command
- down command, down-silently command
- enable command
- enable display command
- env command
- eq command
- exit command
- fc command
- files command
- finish command
- fn command
- frame command, select-frame command
- help command, help option
- hold command
- i command
- ignore command
- ih command
- info command
- jb command
- jump command
- kill command
- list command
- log command
- ls command
- mab command
- map-source-name command
- mh command
- modify command
- next command, nexti command
- nocstm option
- output command
- print command
- priv command
- ptype command
- pwd command
- quit command
- reg command
- save command
- select-frame command
- set command (environment)
- set command (variable)
- show command
- snapshot command
- source command
- step command, stepi command
- switch command
- symbol command, symbol-file command
- tbreak command
- tj command, tu command
- tn command
- unload-symbol-file command
- until command
- up command, up-silently command
- vector command
- version option
- vq command
- wait command
- whatis command
- x command
- 4 Using Tcl Scripting
- A Command Mapping With Debug and Inspect
- Glossary
- Index

Introducing Native Inspect
Native Inspect Manual—528122-003
1-20
Addressing Symbols for DLLs Loaded at Another
Address
Addressing Symbols for DLLs Loaded at Another Address
If a user loads a symbol file for a DLL before a program call to dlopen() to load the
DLL, Native Inspect uses the preferred address of the DLL as the basis for symbol
address calculations. Then, when the DLL is loaded, Native Inspect again attempts to
load the symbols using the actual load address for the DLL.
Setting Breakpoints
Native Inspect does not support the ability to set breakpoints on DLL functions before
the DLL is loaded.
Handling Events
When Native Inspect receives an event, it informs you what event has occurred and
then updates the debugging context (that is, information specific to the current process,
such as breakpoints, loaded DLLs, and the current register values).
The type of events that have the most impact on debugging with Native Inspect are
debugging events, which typically suspend a program under debugger control. For
example, a breakpoint is a debugger-induced debugging event.
Specific responses to significant events are listed in Table 1-2.
Assessing Your Location After an Event
If you are uncertain about your current program location after an event occurs, you can
list the current frame by using the frame command, select-frame command:
(eInspect 6,679): frame
#0 test_complexTypes() () at \SYS03.$D007.SYMBAT1.SCXXTST:424
424 printf( "%s test_complexTypes\n", getStepPrefix( 1 ) );










