How use Instruments and display the console in Command Lines applications

Question

I\'m using Xcode on OSX to develop command line C applications. I would also like to use Instruments to profile and find memory leaks.

However, I couldn\'t find a wa

Answer 1

It's a little late to contribute to this old thread, however I have found the best way of profiling a command line utility is to use iprofiler (manpage). This allows data to be collected from the command line simply by adding this to the start of the command line:

iprofiler -leaks -d $HOME/tmp

(I have a private temporary directory at $HOME/tmp, so you might need to use /tmp or leave the -d command line option off altogether).

My test scripts automatically add that to the command line if $FINDLEAKS is defined (and will prepend valgrind if running under Linux).

This then generates a .dtps file (actually a directory) which can be loaded and anaylysed using Instruments.

If you are compiling using clang then simply add both -O3 and -g (clang doesn't support the -pg command line option).

Answer 2

It's easy. See the screenshot.

Answer 3

You can change the output in the Options dropdown when choosing your target. The output will appear in the system Console (Applications/Utilities/Console).