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authorGabe Black <gblack@eecs.umich.edu>2007-07-28 20:30:43 -0700
committerGabe Black <gblack@eecs.umich.edu>2007-07-28 20:30:43 -0700
commit8dd7700482b8ad7fa5e96469b23f0c917f5e3599 (patch)
treec1e9e7e835a12992eda9f9ee90e4f984816ed059 /src/sim
parentcda354b07035f73a3b220f89014721300d36a815 (diff)
downloadgem5-8dd7700482b8ad7fa5e96469b23f0c917f5e3599.tar.xz
Turn the instruction tracing code into pluggable sim objects.
These need to be refined a little still and given parameters. --HG-- extra : convert_revision : 9a8f5a7bd9dacbebbbd2c235cd890c49a81040d7
Diffstat (limited to 'src/sim')
-rw-r--r--src/sim/InstTracer.py35
-rw-r--r--src/sim/SConscript1
-rw-r--r--src/sim/insttracer.hh146
3 files changed, 182 insertions, 0 deletions
diff --git a/src/sim/InstTracer.py b/src/sim/InstTracer.py
new file mode 100644
index 000000000..f7500f1e8
--- /dev/null
+++ b/src/sim/InstTracer.py
@@ -0,0 +1,35 @@
+# Copyright (c) 2007 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: Gabe Black
+
+from m5.SimObject import SimObject
+from m5.params import *
+
+class InstTracer(SimObject):
+ type = 'InstTracer'
+ cxx_namespace = 'Trace'
+ abstract = True
diff --git a/src/sim/SConscript b/src/sim/SConscript
index 455e5678a..6bd53e205 100644
--- a/src/sim/SConscript
+++ b/src/sim/SConscript
@@ -32,6 +32,7 @@ Import('*')
SimObject('Root.py')
SimObject('System.py')
+SimObject('InstTracer.py')
Source('async.cc')
Source('core.cc')
diff --git a/src/sim/insttracer.hh b/src/sim/insttracer.hh
new file mode 100644
index 000000000..ebeae1fe9
--- /dev/null
+++ b/src/sim/insttracer.hh
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2001-2005 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: Steve Reinhardt
+ * Nathan Binkert
+ */
+
+#ifndef __INSTRECORD_HH__
+#define __INSTRECORD_HH__
+
+#include "base/trace.hh"
+#include "cpu/inst_seq.hh" // for InstSeqNum
+#include "cpu/static_inst.hh"
+#include "sim/host.hh"
+#include "sim/sim_object.hh"
+
+class ThreadContext;
+
+namespace Trace {
+
+class InstRecord
+{
+ protected:
+ Tick when;
+
+ // The following fields are initialized by the constructor and
+ // thus guaranteed to be valid.
+ ThreadContext *thread;
+ // need to make this ref-counted so it doesn't go away before we
+ // dump the record
+ StaticInstPtr staticInst;
+ Addr PC;
+ bool misspeculating;
+
+ // The remaining fields are only valid for particular instruction
+ // types (e.g, addresses for memory ops) or when particular
+ // options are enabled (e.g., tracing full register contents).
+ // Each data field has an associated valid flag to indicate
+ // whether the data field is valid.
+ Addr addr;
+ bool addr_valid;
+
+ union {
+ uint64_t as_int;
+ double as_double;
+ } data;
+ enum {
+ DataInvalid = 0,
+ DataInt8 = 1, // set to equal number of bytes
+ DataInt16 = 2,
+ DataInt32 = 4,
+ DataInt64 = 8,
+ DataDouble = 3
+ } data_status;
+
+ InstSeqNum fetch_seq;
+ bool fetch_seq_valid;
+
+ InstSeqNum cp_seq;
+ bool cp_seq_valid;
+
+ public:
+ InstRecord(Tick _when, ThreadContext *_thread,
+ const StaticInstPtr &_staticInst,
+ Addr _pc, bool spec)
+ : when(_when), thread(_thread),
+ staticInst(_staticInst), PC(_pc),
+ misspeculating(spec)
+ {
+ data_status = DataInvalid;
+ addr_valid = false;
+
+ fetch_seq_valid = false;
+ cp_seq_valid = false;
+ }
+
+ virtual ~InstRecord() { }
+
+ void setAddr(Addr a) { addr = a; addr_valid = true; }
+
+ void setData(Twin64_t d) { data.as_int = d.a; data_status = DataInt64; }
+ void setData(Twin32_t d) { data.as_int = d.a; data_status = DataInt32; }
+ void setData(uint64_t d) { data.as_int = d; data_status = DataInt64; }
+ void setData(uint32_t d) { data.as_int = d; data_status = DataInt32; }
+ void setData(uint16_t d) { data.as_int = d; data_status = DataInt16; }
+ void setData(uint8_t d) { data.as_int = d; data_status = DataInt8; }
+
+ void setData(int64_t d) { setData((uint64_t)d); }
+ void setData(int32_t d) { setData((uint32_t)d); }
+ void setData(int16_t d) { setData((uint16_t)d); }
+ void setData(int8_t d) { setData((uint8_t)d); }
+
+ void setData(double d) { data.as_double = d; data_status = DataDouble; }
+
+ void setFetchSeq(InstSeqNum seq)
+ { fetch_seq = seq; fetch_seq_valid = true; }
+
+ void setCPSeq(InstSeqNum seq)
+ { cp_seq = seq; cp_seq_valid = true; }
+
+ virtual void dump() = 0;
+};
+
+class InstTracer : public SimObject
+{
+ public:
+ InstTracer(const std::string & name) : SimObject(name)
+ {}
+
+ virtual ~InstTracer()
+ {};
+
+ virtual InstRecord *
+ getInstRecord(Tick when, ThreadContext *tc,
+ const StaticInstPtr staticInst, Addr pc) = 0;
+};
+
+
+
+}; // namespace Trace
+
+#endif // __INSTRECORD_HH__