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

Error Messages
Debug Manual—421921-003
A-16
64
64
Cause. An extended address was specified for the trace or condition clause on a
breakpoint. The IX, IG, and I options cannot be used with an extended address.
Effect. The command is not executed.
Recovery. If an extended address must be used, use SX to allow indexing.
65
Cause. When attempting to set a memory access breakpoint (MAB), the page was not
found, and a page fault is not allowed on a process.
Effect. None.
Recovery. Use the C command to clear the MAB, if necessary. Make sure that the
memory manager has sufficiently high priority. Check the code to see if code
breakpoint can be set instead of MAB.
66
Cause. An attempted was made to set a TNS breakpoint in an accelerated program. A
TNS breakpoint can be set only at a memory-exact or a register-exact point.
Effect. The command is not executed.
Recovery. Use the PMAP command to find the appropriate TNS locations or set
breakpoint in the accelerated RISC code.
67
Cause. An attempt was made to clear a memory-access breakpoint using the C
command.
Effect. The command is not executed.
Recovery. Use the CM command to clear the MAB.
IX, IG, and I are not allowed for extended address.
Memory is absent and page fault is not allowed.
Cannot set TNS breakpoint at this location because there is no corresponding
RISC breakpoint. Use the PMAP command to find matching RISC location near
this TNS location.
CM command required to clear MAB.