Interactions

The –xprofile=tcov and the -xa options are compatible in a single executable. That is, you can link a program that contains some files that have been compiled with -xprofile=tcov and other files compiled with -xa. You cannot compile a single file with both options.

The code coverage report produced by -xprofile=tcov can be unreliable if there is inlining of functions due to the use of -xinline or -xO4.

You can set the environment variables $SUN_PROFDATA and $SUN_PROFDATA_DIR to control where a program that is compiled with -xprofile=collect puts the profile data. If these variables are not set, the profile data is written to name.profile/feedback in the current directory (name is the name of the executable or the name specified in the -xprofile=collect:name flag). If these variables are set, the -xprofile=collect data is written to $SUN_PROFDATA_DIR/$SUN_PROFDATA.

The $SUN_PROFDATA and $SUN_PROFDATA_DIR environment variables similarly control the path and names of the profile data files written by tcov. See the tcov(1) man page for more information.