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
4-75
? Command
? Command
The ? command displays the following:
•
The space identifier for the current code segment.
•
Either the segment ID for the current selectable data segment that was brought
into use when the process being debugged called USESEGMENT or
SEGMENT_USE_, or the segment ID last specified by you in a Debug VQ
command.
The segment ID is in octal.
The VQ command does not change the process segment ID that resulted from the
process’s last call to USESEGMENT or SEGMENT_USE_. When the process
resumes execution, it uses this segment ID.
If no selectable data segment exists, the word NONE appears.
•
The current specified base of input and output.
•
The current home terminal.
•
The current PRV setting.
The form of the ? command is:
Examples
254,03,00012-prv on
254,03,00012-?
BASE SEGMENTS: SYSTEM DATA = %000001
SYSTEM CODE = %000005
SYSTEM LIB = %020400
USER DATA = %020777
V PIN = 014 (#012)
USE SEGMENT ID = NONE
BASE STANDARD IN
BASE STANDARD OUT
TERM \RAMBLER.$ZTN00.#PTYRVSD
PRV = ON
?