trace(3)

NAME
trace() - sets trace flags and returns the old ones.

SYNOPSIS
int trace(int traceflags);

DESCRIPTION
Sets the trace flags and returns the old trace flags. When tracing is on a lot of information is printed during execution.

The trace bits are:

Trace all function calls to lfuns.

Trace all calls to "call_other".

Trace all function returns.

Print arguments at function calls and return values.

Print all executed stack machine instructions (produces a lot of output!).

Enable trace in heart beat functions.

Trace calls to apply.

Show object name in tracing.

SEE ALSO
traceprefix(3)