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
Sample Debug Sessions
Debug Manual—421921-003
F-17
TNS Program Example
AMAP Command
If the N prefix is used with an address, the address must be in a 32-bit form. The N
prefix also changes the formatting of the output display for some Debug commands. In
this example, we use the AMAP command to convert the Q address to a 32-bit
address and use the converted address for the A command.
DN Command
The following shows the use of the DN command:
Modify Data Using 32-bit address
For the next example we modify a 32-bit word in the selectable segment. We use the
M command with an N address prefix to do the 32-bit operation.
050,03,00013-amap q #40/2
Address: 0x00080028
Kind = 0x0013: Unknown
Attributes: none
050,03,00013-a n 0x00080028, #10, c
00080028:.0123456789.........
Note. Adding the N prefix to the A command changed the output display to decimal byte
address.
050,03,00013-dn 0x00080028, #10 :a
00080028: ..012. .3456. .789.. ......
00080038: ...... ...... ...... ......
00080048: ...... ......
Note. The DN command is not the same as D N (with space between the letters). For more
information about the differences between the DN and D N commands, refer to Section 4,
Debug Commands, of this manual.
050,03,00013-amap q #140000
Address: 0x000A22E0
Kind = 0x0013: Unknown
Attributes: none
050,03,00013-m n 0x000A22E0
0x000A22E0 : 0x00000000 <- '3456'
0x000A22E4 : 0x00000000 <-