.\"sets trace flags and returns the old ones.
Name
.SI 5
trace() - sets trace flags and returns the old ones.
.EI
Synopsis
.SI 5
int trace(int traceflags);
.EI
Description
.SP 5 5
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
1
Trace all function calls to lfuns.
2
Trace all calls to "call_other".
4
Trace all function returns.
8
Print arguments at function calls and return values.
16
Print all executed stack machine instructions (produces a lot of output!).
32
Enable trace in heart beat functions.
64
Trace calls to apply.
128
Show object name in tracing.
.EP
See also
.SI 5
traceprefix(3)
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