1Shell - DTracing Shell Scripting 2 3 These scripts trace activity of various shell programming languages, 4 and make use of specific shell DTrace providers, which are either 5 integrated or available for download from the shells page listed below. 6 Each script has a prefix to make the shell language clear. 7 8 http://www.opensolaris.org/os/community/dtrace/shells/ 9 10 sh - the Bourne Shell. This provider was written by Alan Hargreaves and 11 is currently available both as a diff and in binary form from the shells 12 page. 13 14 Since the DTrace Shell providers are under development, there is a chance 15 that they have changed slightly by the time you are reading this, causing 16 these scripts to either break or behave oddly. Firstly, check for newer 17 versions of the DTraceToolkit; if it hasn't been updated and you need 18 to use these scripts immediately, then updating them shouldn't take 19 too long. The following was the state of the providers when these scripts 20 were written - check for changes and update the scripts accordingly, 21 22 provider sh { 23 probe function-entry(file, function, lineno); 24 probe function-return(file, function, rval); 25 probe builtin-entry(file, function, lineno); 26 probe builtin-return(file, function, rval); 27 probe command-entry(file, function, lineno); 28 probe command-return(file, function, rval); 29 probe script-start(file); 30 probe script-done(file, rval); 31 probe subshell-entry(file, childpid); 32 probe subshell-return(file, rval); 33 probe line(file, lineno); 34 }; 35 36