Debug Manual
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 Introduction
- Execution Modes on TNS/R Systems
- What User Access Is Required for Debugging
- How to Make a Process Enter Debug
- How to Select Debug as the Debugger
- Why a Process Enters Debug
- How to Determine Process State on a Trap or Signal
- Ending a Debug Session
- What Appears in the Debug Header Message
- How to Use Debug
- How Debug Breakpoints Work
- 2 Using Debug on TNS/R Processors
- 3 Debug Command Overview
- 4 Debug Commands
- Command Summary
- A Command
- AMAP Command
- B Command
- BASE Command
- BM Command
- C Command
- CM Command
- D Command
- DJ Command
- DN Command
- EX[IT] Command
- F[ILES] Command
- FC Command
- FN Command
- FNL Command
- FREEZE Command
- HALT Command
- H[ELP] Command
- I Command
- IH Command (TNS/R Native and OSS Processes)
- INSPECT Command
- LMAP Command
- M Command
- MH Command (TNS/R Native and OSS Processes)
- P[AUSE] Command
- PMAP Command (Accelerated Programs)
- PRV Command
- R Command
- S[TOP] Command
- T Command
- V Command
- VQ Command
- VQA Command
- = Command
- ? Command
- A Error Messages
- B ASCII Character Set
- C Command Syntax Summary
- Register Syntax
- Expression Syntax
- Address Syntax
- A Command
- AMAP Command
- B Command
- BASE Command
- BM Command
- C Command
- CM Command
- D Command
- DJ Command
- DN Command
- EX[IT] Command
- F[ILES] Command
- FC Command
- FN Command
- FNL Command
- FREEZE Command
- HALT Command
- H[ELP] Command
- I Command
- IH Command
- INSPECT Command
- LMAP Command
- M Command
- MH Command
- Output-Device Syntax
- P[AUSE] Command
- PMAP Command
- PRV Command
- R Command
- S[TOP] Command
- T Command
- V Command
- VQ Command
- VQA Command
- = Command
- ? Command
- D Session Boundaries
- E Correspondence Between Debug and Inspect Commands
- F Sample Debug Sessions
- Glossary
- Index

Debug Commands
Debug Manual—421921-003
4-2
Command Summary
H[ELP] Command Display help information about Debug
commands
4-51
I Command Display data as instruction code 4-52
IH Command
(TNS/R Native and
OSS Processes)
Display information about signal handling 4-54
INSPECT
Command
Transfer control to the Inspect debugger 4-55
LMAP Command Display the name of the procedure, and
the offset from the base of the
procedure, where a specified address
lies
4-57
M Command Modify data, registers, or space identifier 4-58
MH Command
(TNS/R Native and
OSS Processes)
Modify signal handling 4-62
P[AUSE]
Command
Pause (suspend) process for specified
period
4-63
PMAP Command
(Accelerated
Programs)
Print corresponding blocks of
accelerated code
4-64
PRV Command Enable or disable privileged debugging 4-65
R Command Resume process execution 4-66
S[TOP] Command Stop process execution 4-67
T Command Display a stack-marker traceback or
procedure-name traceback
4-68
V Command
√
Enable access to other address spaces 4-71
VQ Command Change selectable data segment
currently viewed by Debug
4-72
VQA Command
√
Set the current selectable data segment
to the specified absolute segment
number
4-73
= Command Compute and display value of an
expression
4-73
? Command Display identifiers for the current code
segment and for the selectable data
segment that is currently in use
4-75
Table 4-1. Debug Command Summary (page 2 of 2)
Command
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