jorendb!

(gdb) r
Starting program: /Users/jason/dev/jsdbg2/js/src/d-objdir/js -d jorendb.js
Reading symbols for shared libraries . done
jorendb version -0.0

(jorendb)
p function fac(n) { debugger; return 1; }
    (void 0)

(jorendb)
p fac(3)
'debugger' statement hit.
#0 in fac

(jorendb)
bt
#0 in fac
#1 in eval code

(jorendb)
p n
$1 = 3

(jorendb)
forcereturn fac(n-1) * n
'debugger' statement hit.
#0 in fac

(jorendb)
bt
#0 in fac
#1 in eval code
#2 in fac
#3 in eval code

(jorendb)