TotalView Users Guide - CI Wiki

Figure 158: Tools > Debugger
Loaded Libraries Dialog
Box
Fine-Tuning Shared Library Use
Fine-Tuning Shared Library Use
When TotalView encounters a reference to a shared library, it normally reads
all of that library’s symbols. In some cases, you might need to explicitly
read in this library’s information before TotalView automatically reads it.
On the other hand, you may not want TotalView to read and process a
library’s loader and debugging symbols. In most cases, reading these symbols
occurs quickly. However, if your program uses large libraries, you can
increase performance by telling TotalView not to read these symbols.
For more information, see “Preloading Shared Libraries” on page 245 and
“Controlling Which Symbols TotalView Reads” on page 246.
Preloading Shared Libraries
As your program executes, it can call the dlopen() function to access code
contained in shared libraries. In some cases, you might need to do something
from within TotalView that requires you to preload library information.
For example, you might need to refer to one of a library’s functions in an
eval point or in a Tools > Evaluate command. If you use the function’s
name before TotalView reads the dynamic library, TotalView displays an
error message.
Use the Tools > Debugger Loaded Libraries command to tell the debugger
to open a library.
CLI: ddlopen
This CLI command gives you additional ways to control how a
library’s symbols are used.
After selecting this command, TotalView displays the following dialog box:
TotalView Users Guide: version 8.7 245