TotalView Reference Guide : Part I: CLI Commands : CLI Commands : dnexti
dnexti
Steps machine instructions, stepping over subroutines
Format: 
dnexti [-back ] [ num-steps ]
Arguments: 
-back
(ReplayEngine only) Steps a machine instruction back to the previous instruction, stepping over subroutines. This option can be abbreviated to -b.
num-steps
An integer greater than 0, indicating the number of instructions to be executed.
Description: 
The dnexti command executes machine-level instructions; that is, it advances the program by a single instruction. However, if the instruction invokes a subfunction, the dnexti command executes the subfunction as if it were one instruction; that is, it steps over the call. This command steps the thread of interest (TOI) while allowing other threads in the process to run.
The optional num-steps argument defines how many dnexti operations to perform. If you do not specify num-steps, the default is 1.
The dnexti command iterates over the arenas in the focus set, performing a thread-level, process-level, or group-level step in each arena, depending on the width of the arena. The default width is process (p).
For more information on stepping in processes and threads, see dstep.
Command alias: 
 
Alias
Definition
Description
ni
dnexti
Runs the TOI one instruction while allowing other threads in the process to run.
NI
{dfocus g dnexti}
A group stepping command. This searches for threads in the share group that are at the same PC as the TOI, and steps one such aligned thread in each member one instruction. The rest of the control group runs freely.
nil
{dfocus L dnexti}
Steps the process threads in lockstep. This steps the TOI one instruction, and runs all threads in the process that are at the same PC as the TOI to the same statement. Other threads in the process run freely. The group of threads that is at the same PC is called the lockstep group.
This alias does not force process width. If the default focus is set to group, this steps the group.
NIL
{dfocus gL dnexti}
Steps lockstep threads in the group. This steps all threads in the share group that are at the same PC as the TOI one instruction. Other threads in the control group run freely.
niw
{dfocus W dnexti}
Steps worker threads in the process. This steps the TOI one instruction, and runs all worker threads in the process to the same (goal) statement. The nonworker threads in the process run freely.
This alias does not force process width. If the default focus is set to group, this steps the group.
NIW
{dfocus gW dnexti}
Steps worker threads in the group. This steps the TOI one instruction, and runs all worker threads in the same share group to the same statement. All other threads in the control group run freely.
Examples: 
dnexti
Steps one machine-level instruction.
ni 10
Steps ten machine-level instructions.
NI
Steps one instruction and runs all other processes in the group that were executing at that instruction to the next instruction.
f t n
Steps the thread one machine-level instruction.
dfocus 3. dnexti
Steps process 3 one machine-level instruction.
Related Topics
dnext Command
dstep Command
dfocus Command
Process > Next Instruction Command