Records the enablement of various code instrumentation options. Note - this note is only produced if one or more of these options are enabled.
The note encodes four values, separate by the forward slash (/) character. These values are:
sanitizationEnabled via a plethora of -fsanitize=… options these tell gcc to add extra code to help with various different types of error checking features.
function instrumentationEnabled via gcc’s -finstrument-functions option, this adds special function calls at the entry and exit point of every normal function.
profilingEnabled via gcc’s -p or -pg options, this adds
instrumentation to the compiled code that generates output suitable
for analysis via the prof or gprof programs.
arc profilingEnabled via gcc’s -fprofile-arc option, or one of the meta- profiling options, this option adds code to record how many times every branch and function call is executed.