Document revision date: 30 March 2001

Chapter 15
15	Debugging Multiprocess Programs
15.1	Basic Multiprocess Debugging Techniques
15.1.1	Starting a Multiprocess Debugging Session
15.2	Obtaining Information About Processes
15.3	Process Specification
15.4	Process Sets
15.5	Debugger Prompts
15.6	Process-Sensitive Commands
15.7	Visible Process and Process-Sensitive Commands
15.8	Controlling Process Execution
15.8.1	WAIT Mode
15.8.2	Interrupt Mode
15.8.3	STOP Command
15.9	Connecting to Another Program
15.10	Connecting to a Spawned Process
15.11	Monitoring the Termination of Images
15.12	Releasing a Process From Debugger Control
15.13	Terminating Specified Processes
15.14	Interrupting Program Execution
15.15	Ending the Debugging Session
15.16	Supplemental Information
15.16.0.1	Process Relationships When Debugging
15.16.1	Specifying Processes in Debugger Commands
15.16.2	Monitoring Process Activation and Termination
15.16.3	Interrupting the Execution of an Image to Connect It to the Debugger
15.16.4	Screen Mode Features for Multiprocess Debugging
15.16.5	Setting Watchpoints in Global Sections (Alpha Only)
15.16.6	System Requirements for Multiprocess Debugging
15.16.6.1	User Quotas
15.16.6.2	System Resources
15.17	Examples
Chapter 16
16	Debugging Vectorized Programs (VAX Only)
16.1	Obtaining Information About the Vector Processor
16.2	Controlling and Monitoring the Execution of Vector Instructions
16.2.1	Executing the Program to the Next Vector Instruction
16.2.2	Setting Breakpoints and Tracepoints on Vector Instructions
16.2.3	Setting Watchpoints on Vector Registers
16.3	Examining and Depositing into Vector Registers
16.3.1	Specifying the Vector Registers and Vector Control Registers
16.3.2	Examining and Depositing into the Vector Count Register
16.3.3	Examining and Depositing into the Vector Length Register
16.3.4	Examining and Depositing into the Vector Mask Register
16.3.5	Examining and Depositing into the Vector Registers (V0 to V15)
16.4	Examining and Depositing Vector Instructions
16.4.1	Examining Vector Instructions and Their Operands
16.4.2	Depositing Vector Instructions
16.5	Using a Mask When Examining Vector Registers or Instructions
16.5.1	Using VMR as the Default Mask
16.5.2	Using a Slice of VMR as the Mask
16.5.3	Using a Mask Other Than VMR
16.6	Examining Composite Vector Address Expressions
16.7	Displaying the Results of Vector Floating-Point Exceptions
16.8	Controlling Scalar-Vector Synchronization
16.9	Calling Routines That Might Affect the Program's Vector State
16.10	Displaying Vector Register Data in Screen Mode
16.11	Problems and Restrictions
Chapter 17
17	Debugging Tasking Programs
17.1	Comparison of POSIX Threads and Ada Terminology
17.2	Sample Tasking Programs
17.2.1	Sample C Multithread Program
17.2.2	Sample Ada Tasking Program
17.3	Specifying Tasks in Debugger Commands
17.3.1	Definition of Active Task and Visible Task
17.3.2	Ada Tasking Syntax
17.3.3	Task ID
17.3.4	Task Built-In Symbols
17.3.4.1	Caller Task Symbol (Ada Only)
17.4	Displaying Information About Tasks
17.4.1	Displaying Information About POSIX Threads Tasks
17.4.2	Displaying Task Information About Ada Tasks
17.5	Changing Task Characteristics
17.5.1	Putting Tasks on Hold to Control Task Switching
17.5.2	Debugging Programs That Use Time Slicing (VAX Ada Only)
17.6	Controlling and Monitoring Execution
17.6.1	Setting Task-Specific and Task-Independent Debugger Eventpoints
17.6.2	Setting Breakpoints on POSIX Threads Tasking Constructs
17.6.3	Setting Breakpoints on Ada Task Bodies, Entry Calls, and Accept Statements
17.6.4	Monitoring Task Events
17.7	Additional Task-Debugging Topics
17.7.1	Debugging Programs with Deadlock Conditions
17.7.2	Automatic Stack Checking in the Debugger
17.7.3	Using Ctrl/Y When Debugging Ada Tasks
Part 6
Part 6	Debugger Command Dictionary
1	Debugger Command Format
1.1	General Format
1.2	Entering Commands at the Keyboard
1.3	Entering Commands in Command Procedures
2	Commands Disabled in the Debugger's Compaq DECwindows Motif for OpenVMS User Interface
3	Commands Recognized Only on Workstations Running VWS
4	Debugger Diagnostic Messages
5	Debugger Command Dictionary
Command 1	@ (Execute Procedure)
Command 2	ACTIVATE BREAK
Command 3	ACTIVATE TRACE
Command 4	ACTIVATE WATCH
Command 5	ANALYZE/CRASH_DUMP
Command 6	ANALYZE/PROCESS_DUMP
Command 7	ATTACH
Command 8	CALL
Command 9	CANCEL ALL
Command 10	CANCEL BREAK
Command 11	CANCEL DISPLAY
Command 12	CANCEL MODE
Command 13	CANCEL RADIX
Command 14	CANCEL SCOPE
Command 15	CANCEL SOURCE
Command 16	CANCEL TRACE
Command 17	CANCEL TYPE/OVERRIDE
Command 18	CANCEL WATCH
Command 19	CANCEL WINDOW
Command 20	CONNECT
Command 21	Ctrl/C
Command 22	Ctrl/W
Command 23	Ctrl/Y
Command 24	Ctrl/Z
Command 25	DEACTIVATE BREAK
Command 26	DEACTIVATE TRACE
Command 27	DEACTIVATE WATCH
Command 28	DECLARE
Command 29	DEFINE
Command 30	DEFINE/KEY
Command 31	DEFINE/PROCESS_SET
Command 32	DELETE
Command 33	DELETE/KEY
Command 34	DEPOSIT
Command 35	DISABLE AST
Command 36	DISCONNECT
Command 37	DISPLAY
Command 38	DUMP
Command 39	EDIT
Command 40	ENABLE AST
Command 41	EVALUATE
Command 42	EVALUATE/ADDRESS
Command 43	EXAMINE
Command 44	EXIT
Command 45	EXITLOOP
Command 46	EXPAND
Command 47	EXTRACT
Command 48	FOR
Command 49	GO
Command 50	HELP
Command 51	IF
Command 52	MONITOR
Command 53	MOVE
Command 54	PTHREAD
Command 55	QUIT
Command 56	REBOOT (Alpha Only)
Command 57	REPEAT
Command 58	RERUN
Command 59	RUN
Command 60	SAVE
Command 61	SCROLL
Command 62	SEARCH
Command 63	SDA
Command 64	SELECT
Command 65	SET ABORT_KEY
Command 66	SET ATSIGN
Command 67	SET BREAK
Command 68	SET DEFINE
Command 69	SET EDITOR
Command 70	SET EVENT_FACILITY
Command 71	SET IMAGE
Command 72	SET KEY
Command 73	SET LANGUAGE
Command 74	SET LANGUAGE/DYNAMIC
Command 75	SET LOG
Command 76	SET MARGINS
Command 77	SET MODE
Command 78	SET MODULE
Command 79	SET OUTPUT
Command 80	SET PROCESS
Command 81	SET PROMPT
Command 82	SET RADIX
Command 83	SET SCOPE
Command 84	SET SEARCH
Command 85	SET SOURCE
Command 86	SET STEP
Command 87	SET TASK|THREAD
Command 88	SET TERMINAL
Command 89	SET TRACE
Command 90	SET TYPE
Command 91	SET VECTOR_MODE (VAX only)
Command 92	SET WATCH
Command 93	SET WINDOW
Command 94	SHOW ABORT_KEY
Command 95	SHOW AST
Command 96	SHOW ATSIGN
Command 97	SHOW BREAK
Command 98	SHOW CALLS
Command 99	SHOW DEFINE
Command 100	SHOW DISPLAY
Command 101	SHOW EDITOR
Command 102	SHOW EVENT_FACILITY
Command 103	SHOW EXIT_HANDLERS
Command 104	SHOW IMAGE
Command 105	SHOW KEY
Command 106	SHOW LANGUAGE
Command 107	SHOW LOG
Command 108	SHOW MARGINS
Command 109	SHOW MODE
Command 110	SHOW MODULE
Command 111	SHOW OUTPUT
Command 112	SHOW PROCESS
Command 113	SHOW RADIX
Command 114	SHOW SCOPE
Command 115	SHOW SEARCH
Command 116	SHOW SELECT
Command 117	SHOW SOURCE
Command 118	SHOW STACK
Command 119	SHOW STEP
Command 120	SHOW SYMBOL
Command 121	SHOW TASK|THREAD
Command 122	SHOW TERMINAL
Command 123	SHOW TRACE
Command 124	SHOW TYPE
Command 125	SHOW VECTOR_MODE (VAX Only)
Command 126	SHOW WATCH
Command 127	SHOW WINDOW
Command 128	SPAWN
Command 129	STEP
Command 130	STOP
Command 131	SYMBOLIZE
Command 132	SYNCHRONIZE VECTOR_MODE (VAX Only)
Command 133	TYPE
Command 134	WAIT
Command 135	WHILE

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