Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/base/debug.cc
+++ b/simulators/gem5/src/base/debug.cc
@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2003-2005 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.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <algorithm>
+#include <csignal>
+#include <map>
+#include <vector>
+
+#include "base/cprintf.hh"
+#include "base/debug.hh"
+#include "base/misc.hh"
+
+using namespace std;
+
+namespace Debug {
+
+//
+// This function will cause the process to signal itself with a
+// SIGTRAP which is ignored if not in gdb, but will cause the debugger
+// to break if in gdb.
+//
+void
+breakpoint()
+{
+#ifndef NDEBUG
+    kill(getpid(), SIGTRAP);
+#else
+    cprintf("Debug::breakpoint suppressed, compiled with NDEBUG\n");
+#endif
+}
+
+//
+// Flags for debugging purposes.  Primarily for trace.hh
+//
+typedef std::map<string, Flag *> FlagsMap;
+int allFlagsVersion = 0;
+FlagsMap &
+allFlags()
+{
+    static FlagsMap flags;
+    return flags;
+}
+
+Flag *
+findFlag(const std::string &name)
+{
+    FlagsMap::iterator i = allFlags().find(name);
+    if (i == allFlags().end())
+        return NULL;
+    return i->second;
+}
+
+Flag::Flag(const char *name, const char *desc)
+    : _name(name), _desc(desc)
+{
+    pair<FlagsMap::iterator, bool> result =
+        allFlags().insert(make_pair(name, this));
+
+    if (!result.second)
+        panic("Flag %s already defined!", name);
+
+    ++allFlagsVersion;
+}
+
+Flag::~Flag()
+{
+    // should find and remove flag.
+}
+
+void
+CompoundFlag::enable()
+{
+    SimpleFlag::enable();
+    for_each(_kids.begin(), _kids.end(), mem_fun(&Flag::enable));
+}
+
+void
+CompoundFlag::disable()
+{
+    SimpleFlag::disable();
+    for_each(_kids.begin(), _kids.end(), mem_fun(&Flag::disable));
+}
+
+struct AllFlags : public Flag
+{
+    AllFlags()
+        : Flag("All", "All Flags")
+    {}
+
+    void
+    enable()
+    {
+        FlagsMap::iterator i = allFlags().begin();
+        FlagsMap::iterator end = allFlags().end();
+        for (; i != end; ++i)
+            if (i->second != this)
+                i->second->enable();
+    }
+
+    void
+    disable()
+    {
+        FlagsMap::iterator i = allFlags().begin();
+        FlagsMap::iterator end = allFlags().end();
+        for (; i != end; ++i)
+            if (i->second != this)
+                i->second->disable();
+    }
+};
+
+AllFlags theAllFlags;
+Flag *const All = &theAllFlags;
+
+bool
+changeFlag(const char *s, bool value)
+{
+    Flag *f = findFlag(s);
+    if (!f)
+        return false;
+
+    if (value)
+        f->enable();
+    else
+        f->disable();
+
+    return true;
+}
+
+} // namespace Debug
+
+// add a set of functions that can easily be invoked from gdb
+void
+setDebugFlag(const char *string)
+{
+    Debug::changeFlag(string, true);
+}
+
+void
+clearDebugFlag(const char *string)
+{
+    Debug::changeFlag(string, false);
+}
+
+void
+dumpDebugFlags()
+{
+    using namespace Debug;
+    FlagsMap::iterator i = allFlags().begin();
+    FlagsMap::iterator end = allFlags().end();
+    for (; i != end; ++i) {
+        SimpleFlag *f = dynamic_cast<SimpleFlag *>(i->second);
+        if (f && f->status())
+            cprintf("%s\n", f->name());
+    }
+}