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diff --git a/decoder/include/common/trc_gen_elem.h b/decoder/include/common/trc_gen_elem.h
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+++ b/decoder/include/common/trc_gen_elem.h
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+/*!
+ * \file       trc_gen_elem.h
+ * \brief      OpenCSD : Decoder Generic trace element output class.
+ * 
+ * \copyright  Copyright (c) 2015, ARM Limited. All Rights Reserved.
+ */
+
+/* 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. 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. 
+ * 
+ * 3. Neither the name of the copyright holder 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 HOLDER 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. 
+ */ 
+#ifndef ARM_TRC_GEN_ELEM_H_INCLUDED
+#define ARM_TRC_GEN_ELEM_H_INCLUDED
+
+#include "opencsd/trc_gen_elem_types.h"
+#include "trc_printable_elem.h"
+#include "ocsd_pe_context.h"
+
+/** @addtogroup gen_trc_elem 
+@{*/
+
+/*!
+ * @class OcsdTraceElement
+ * @brief Generic trace element class
+ * 
+ */
+class OcsdTraceElement : public trcPrintableElem, public ocsd_generic_trace_elem
+{
+public:
+    OcsdTraceElement();
+    OcsdTraceElement(ocsd_gen_trc_elem_t type);
+    virtual ~OcsdTraceElement() {};
+
+    void init();
+
+// set elements API
+
+    void setType(const ocsd_gen_trc_elem_t type);       //!< set type and init flags
+    void updateType(const ocsd_gen_trc_elem_t type);    //!< change type only - no init
+
+    void setContext(const ocsd_pe_context &new_context) { context = new_context; };
+    void setISA(const ocsd_isa isa_update);
+    
+    void setCycleCount(const uint32_t cycleCount);
+    void setEvent(const event_t ev_type, const uint16_t number);
+    void setTS(const uint64_t ts, const bool freqChange = false);
+
+    void setExcepMarker() { excep_data_marker = 1; };
+    void setExceptionNum(uint32_t excepNum) { exception_number = excepNum; };
+
+
+    void setTraceOnReason(const trace_on_reason_t reason);
+
+    void setAddrRange(const ocsd_vaddr_t  st_addr, const ocsd_vaddr_t en_addr);
+    void setLastInstrInfo(const bool exec, const ocsd_instr_type last_i_type, const ocsd_instr_subtype last_i_subtype);
+    void setAddrStart(const ocsd_vaddr_t  st_addr) { this->st_addr = st_addr; };
+
+    void setSWTInfo(const ocsd_swt_info_t swt_info) { sw_trace_info = swt_info; };
+    void setExtendedDataPtr(const void *data_ptr);
+
+// stringize the element
+
+    virtual void toString(std::string &str) const;
+
+// get elements API
+
+    OcsdTraceElement &operator =(const ocsd_generic_trace_elem* p_elem);
+
+    const ocsd_gen_trc_elem_t getType() const { return elem_type; };
+
+    // return current context
+    const ocsd_pe_context &getContext() const {  return context; };
+
+    
+private:
+    void printSWInfoPkt(std::ostringstream &oss) const;
+    void clearPerPktData(); //!< clear flags that indicate validity / have values on a per packet basis
+
+};
+
+inline OcsdTraceElement::OcsdTraceElement(ocsd_gen_trc_elem_t type)    
+{
+    elem_type = type;
+}
+
+inline OcsdTraceElement::OcsdTraceElement()    
+{
+    elem_type = OCSD_GEN_TRC_ELEM_UNKNOWN;
+}
+
+inline void OcsdTraceElement::setCycleCount(const uint32_t cycleCount)
+{
+    cycle_count = cycleCount;
+    has_cc = 1;
+}
+
+inline void OcsdTraceElement::setEvent(const event_t ev_type, const uint16_t number)
+{
+    trace_event.ev_type = (uint16_t)ev_type;
+    trace_event.ev_number = ev_type == EVENT_NUMBERED ? number : 0;
+}
+
+inline void OcsdTraceElement::setAddrRange(const ocsd_vaddr_t  st_addr, const ocsd_vaddr_t en_addr)
+{
+    this->st_addr = st_addr;
+    this->en_addr = en_addr;
+}
+
+inline void OcsdTraceElement::setLastInstrInfo(const bool exec, const ocsd_instr_type last_i_type, const ocsd_instr_subtype last_i_subtype)
+{
+    last_instr_exec = exec ? 1 : 0;
+    this->last_i_type = last_i_type;
+    this->last_i_subtype = last_i_subtype;
+}
+
+inline void OcsdTraceElement::setType(const ocsd_gen_trc_elem_t type) 
+{ 
+    // set the type and clear down the per element flags
+    elem_type = type;
+
+    clearPerPktData();
+}
+
+inline void OcsdTraceElement::updateType(const ocsd_gen_trc_elem_t type)
+{
+    elem_type = type;
+}
+
+inline void OcsdTraceElement::init()
+{
+    st_addr = en_addr = (ocsd_vaddr_t)-1;
+    isa = ocsd_isa_unknown;
+
+    cycle_count = 0;
+    timestamp = 0;
+
+    context.ctxt_id_valid = 0;
+    context.vmid_valid = 0;
+    context.el_valid = 0;
+
+    last_i_type = OCSD_INSTR_OTHER;
+    last_i_subtype = OCSD_S_INSTR_NONE;
+
+    clearPerPktData();
+}
+
+inline void OcsdTraceElement::clearPerPktData()
+{
+    flag_bits = 0; // union with trace_on_reason / trace_event
+
+    ptr_extended_data = 0;  // extended data pointer
+}
+
+inline void OcsdTraceElement::setTraceOnReason(const trace_on_reason_t reason)
+{
+    trace_on_reason = reason;
+}
+
+inline void OcsdTraceElement::setISA(const ocsd_isa isa_update)
+{
+    isa = isa_update;
+    if(isa > ocsd_isa_unknown)
+        isa = ocsd_isa_unknown;
+}
+
+inline void OcsdTraceElement::setTS(const uint64_t ts, const bool freqChange /*= false*/) 
+{ 
+    timestamp = ts; 
+    cpu_freq_change = freqChange ? 1 : 0; 
+    has_ts = 1;
+}
+
+inline void OcsdTraceElement::setExtendedDataPtr(const void *data_ptr)
+{
+    extended_data = 1;
+    ptr_extended_data = data_ptr;
+}
+
+
+/** @}*/
+
+#endif // ARM_TRC_GEN_ELEM_H_INCLUDED
+
+/* End of File trc_gen_elem.h */