added system option to bin interrupt code seperately.

arch/alpha/ev5.cc:
    set the mode explictly rather than having a bool user/notuser
cpu/simple_cpu/simple_cpu.hh:
    there is no class Kernel
kern/kernel_stats.cc:
    use cpu_mode_num
kern/kernel_stats.hh:
    add interrupt mode and use cpu_mode_num rather than constant
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
kern/system_events.cc:
kern/system_events.hh:
    add events to change the mode to/from interrupt
sim/system.cc:
sim/system.hh:
    add a pal symbol table

--HG--
extra : convert_revision : 9d30e826b72122062a5ea12d094f94760e75c66a

1 files changed, 14 insertions, 0 deletions

diff --git a/kern/system_events.cc b/kern/system_events.cc
index 91daf53ca..b6526d193 100644
--- a/kern/system_events.cc
+++ b/kern/system_events.cc
@@ -71,3 +71,17 @@ IdleStartEvent::process(ExecContext *xc)
 {
     xc->kernelStats->setIdleProcess(xc->regs.ipr[AlphaISA::IPR_PALtemp23]);
 }
+
+void
+InterruptStartEvent::process(ExecContext *xc)
+{
+    xc->kernelStats->mode(Kernel::interrupt);
+}
+
+void
+InterruptEndEvent::process(ExecContext *xc)
+{
+    // We go back to kernel, if we are user, inside the rti
+    // pal code we will get switched to user because of the ICM write
+    xc->kernelStats->mode(Kernel::kernel);
+}