output: Make panic/fatal/warn more flexible so we can add some new ones.

The major thrust of this change is to limit the amount of code
duplication surrounding the code for these functions.  This code also
adds two new message types called info and hack.  Info is meant to be
less harsh than warn so people don't get confused and start thinking
that the simulator is broken.  Hack is a way for people to add runtime
messages indicating that the simulator just executed a code "hack"
that should probably be fixed.  The benefit of knowing about these
code hacks is that it will let people know what sorts of inaccuracies
or potential bugs might be entering their experiments.  Finally, I've
added some flags to turn on and off these message types so command
line options can change them.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sim/simulate.cc b/src/sim/simulate.cc
index 59d79b7c6..7f40805e6 100644
--- a/src/sim/simulate.cc
+++ b/src/sim/simulate.cc
@@ -47,7 +47,7 @@
 SimLoopExitEvent *
 simulate(Tick num_cycles)
 {
-    warn("Entering event queue @ %d.  Starting simulation...\n", curTick);
+    info("Entering event queue @ %d.  Starting simulation...\n", curTick);
 
     if (num_cycles < 0)
         fatal("simulate: num_cycles must be >= 0 (was %d)\n", num_cycles);