Startup Example

The following is a very small CLI script:

#

source make_actions.tcl

#

dload fork_loop

dset ARGS_DEFAULT {0 4 –wp}

dstep

catch {make_actions fork_loop.cxx} msg

puts $msg

This script begins by loading and interpreting the make_actions.tcl file, which was described in Chapter 11, “Seeing the CLI at Work”. It then loads the fork_loop executable, sets its default startup arguments, and steps one source-level statement.

If you stored this in a file named fork_loop.tvd, you can tell TotalView to start the CLI and execute this file by entering the following command:

totalviewcli –s fork_loop.tvd

The following example places a similar set of commands in a file that you invoke from the shell:

#!/bin/sh

# Next line executed by shell, but ignored by Tcl because: \

exec totalviewcli –s "$0" "$@"

#

source make_actions.tcl

#

dload fork_loop

dset ARGS_DEFAULT {0 4 –wp}

dstep

catch {make_actions fork_loop.cxx} msg

puts $msg

The only real difference between the last two examples is the first few lines in the file. In this second example, the shell ignores the backslash continuation character; Tcl processes it. This means that the shell executes the exec command while Tcl will ignore it.