From 73501ea38f3c3e53fc02561444e25989c29224af Mon Sep 17 00:00:00 2001
From: Lisa Hsu <hsul@eecs.umich.edu>
Date: Mon, 17 May 2004 13:22:19 -0400
Subject: push the new system_events file that i was prevented from pushing way
 back when cable died. :(.  also, fix the printing of binned stats, it was
 printing hex values instead of bin names.

base/stats/text.cc:
    fix the printing of binned stats.

--HG--
extra : convert_revision : 3a04d004f5ea1d90536f7102fce946fd6dd34613
---
 kern/system_events.cc | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 kern/system_events.cc

(limited to 'kern/system_events.cc')

diff --git a/kern/system_events.cc b/kern/system_events.cc
new file mode 100644
index 000000000..011dbce5f
--- /dev/null
+++ b/kern/system_events.cc
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "cpu/exec_context.hh"
+#include "cpu/base_cpu.hh"
+#include "cpu/full_cpu/bpred.hh"
+#include "cpu/full_cpu/full_cpu.hh"
+#include "kern/system_events.hh"
+#include "sim/system.hh"
+#include "sim/sw_context.hh"
+
+void
+SkipFuncEvent::process(ExecContext *xc)
+{
+    Addr newpc = xc->regs.intRegFile[ReturnAddressReg];
+
+    DPRINTF(PCEvent, "skipping %s: pc=%x, newpc=%x\n", description,
+            xc->regs.pc, newpc);
+
+    xc->regs.pc = newpc;
+    xc->regs.npc = xc->regs.pc + sizeof(MachInst);
+
+    BranchPred *bp = xc->cpu->getBranchPred();
+    if (bp != NULL) {
+        bp->popRAS(xc->thread_num);
+    }
+}
+
+
+FnEvent::FnEvent(PCEventQueue *q, const std::string & desc, System *system)
+    : PCEvent(q, desc), _name(desc)
+{
+    myBin = system->getBin(desc);
+    assert(myBin);
+}
+
+void
+FnEvent::process(ExecContext *xc)
+{
+    if (xc->misspeculating())
+        return;
+    assert(xc->system->bin && "FnEvent must be in a binned system");
+    SWContext *ctx = xc->swCtx;
+    DPRINTF(TCPIP, "%s: %s Event!!!\n", xc->system->name(), description);
+
+    if (ctx && !ctx->callStack.empty()) {
+        DPRINTF(TCPIP, "already a callstack!\n");
+        fnCall *last = ctx->callStack.top();
+
+        if (last->name == "idle_thread")
+            ctx->calls++;
+
+        if (!xc->system->findCaller(myname(), "" ) &&
+            !xc->system->findCaller(myname(), last->name)) {
+
+            DPRINTF(TCPIP, "but can't find parent %s\n", last->name);
+            return;
+        }
+        ctx->calls--;
+
+        //assert(!ctx->calls && "on a binned fn, calls should == 0 (but can happen in boot)");
+    } else {
+        DPRINTF(TCPIP, "no callstack yet\n");
+        if (!xc->system->findCaller(myname(), "")) {
+            DPRINTF(TCPIP, "not the right function, returning\n");
+            return;
+        }
+        if (!ctx)  {
+            DPRINTF(TCPIP, "creating new context for %s\n", myname());
+            ctx = new SWContext;
+            xc->swCtx = ctx;
+        }
+    }
+    DPRINTF(TCPIP, "adding fn %s to context\n", myname());
+    fnCall *call = new fnCall;
+    call->myBin = myBin;
+    call->name = myname();
+    ctx->callStack.push(call);
+    myBin->activate();
+    xc->system->fnCalls++;
+    DPRINTF(TCPIP, "fnCalls for %s is %d\n", description,
+            xc->system->fnCalls.value());
+    xc->system->dumpState(xc);
+}
-- 
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