TotalView Users Guide - CI Wiki

Figure 117: Line Numbers
with Stop Icon and PC
Arrow
Viewing the Assembler Version of Your Code
� The information displayed in the Stack Trace and Stack Frame Panes reflects
the state of a process when it was last stopped. Consequently, the
information that they display is not up-to-date while a thread is running.
� The left margin of the Source Pane displays line numbers and action point
icons. You can place a breakpoint at any line whose line number is contained
within a box. The box indicates that executable code was created
by the source code.
When you place a breakpoint on a line, TotalView places a icon over
the line number. An arrow over the line number shows the current location
of the program counter (PC) in the selected stack frame. (See Figure 117.)
Each thread has its own unique program counter (PC). When you stop a
multi-process or multi-threaded program, the routine displayed in the
Stack Trace Pane for a thread depends on the thread’s PC. Because
threads execute asynchronously, threads are stopped at different places.
(When your thread hits a breakpoint, the default is to stop all the other
threads in the process as well.)
� The tabbed area at the bottom contains a set of tabs whose information
yo u can hide or display as you need it. In addition, the P+, P-, T+, and T-
buttons within this area allow you to change the Process Window’s context
by moving to another process or thread.
The Action Points Tab with the Tabs Pane shows the list of breakpoints, eval
points, and watchpoints for the process. The Processes/Ranks tab displays a
grid of all of your program’s processes. The grid’s element’s shows process
status and indicates the selected group. Selecting a process
switches the context to the first thread in that process.
The Threads Tab shows each thread and information about the thread.
Selecting a process switches the context to the that thread.
Viewing the Assembler Version of
Your Code
You can display your program in source or assembler. You can use the following
commands:
Source code (Default)
Select the View > Source As > Source command.
Assembler code Select the View > Source As > Assembler command.
TotalView Users Guide: version 8.7 171