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/*
* \file trc_gen_elem.cpp
* \brief OpenCSD :
*
* \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.
*/
#include "common/trc_gen_elem.h"
#include "mem_acc/trc_mem_acc_base.h"
#include <string>
#include <sstream>
#include <iomanip>
static const char *s_elem_descs[][2] =
{
{"OCSD_GEN_TRC_ELEM_UNKNOWN","Unknown trace element - default value or indicate error in stream to client."},
{"OCSD_GEN_TRC_ELEM_NO_SYNC","Waiting for sync - either at start of decode, or after overflow / bad packet"},
{"OCSD_GEN_TRC_ELEM_TRACE_ON","Start of trace - beginning of elements or restart after discontinuity (overflow, trace filtering)."},
{"OCSD_GEN_TRC_ELEM_EO_TRACE","End of the available trace in the buffer."},
{"OCSD_GEN_TRC_ELEM_PE_CONTEXT","PE status update / change (arch, ctxtid, vmid etc)."},
{"OCSD_GEN_TRC_ELEM_INSTR_RANGE","Traced N consecutive instructions from addr (no intervening events or data elements), may have data assoc key"},
{"OCSD_GEN_TRC_ELEM_I_RANGE_NOPATH","Traced N instructions in a range, but incomplete information as to program execution path from start to end of range"},
{"OCSD_GEN_TRC_ELEM_ADDR_NACC","Tracing in inaccessible memory area."},
{"OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN","Tracing unknown address area."},
{"OCSD_GEN_TRC_ELEM_EXCEPTION","Exception"},
{"OCSD_GEN_TRC_ELEM_EXCEPTION_RET","Exception return"},
{"OCSD_GEN_TRC_ELEM_TIMESTAMP","Timestamp - preceding elements happeded before this time."},
{"OCSD_GEN_TRC_ELEM_CYCLE_COUNT","Cycle count - cycles since last cycle count value - associated with a preceding instruction range."},
{"OCSD_GEN_TRC_ELEM_EVENT","Event - numbered event or trigger"},
{"OCSD_GEN_TRC_ELEM_SWTRACE","Software trace packet - may contain data payload. STM / ITM hardware trace with channel protocol."},
{"OCSD_GEN_TRC_ELEM_SYNC_MARKER","Synchronisation marker - marks position in stream of an element that is output later."},
{"OCSD_GEN_TRC_ELEM_MEMTRANS","Trace indication of transactional memory operations."},
{"OCSD_GEN_TRC_ELEM_INSTRUMENTATION", "PE instrumentation trace - PE generated SW trace, application dependent protocol."},
{"OCSD_GEN_TRC_ELEM_CUSTOM","Fully custom packet type."}
};
static const char *instr_type[] = {
"--- ",
"BR ",
"iBR ",
"ISB ",
"DSB.DMB",
"WFI.WFE",
"TSTART"
};
#define T_SIZE (sizeof(instr_type) / sizeof(const char *))
static const char *instr_sub_type[] = {
"--- ",
"b+link ",
"A64:ret ",
"A64:eret ",
"V7:impl ret",
};
#define ST_SIZE (sizeof(instr_sub_type) / sizeof(const char *))
static const char *s_trace_on_reason[] = {
"begin or filter",
"overflow",
"debug restart"
};
static const char *s_isa_str[] = {
"A32", /**< V7 ARM 32, V8 AArch32 */
"T32", /**< Thumb2 -> 16/32 bit instructions */
"A64", /**< V8 AArch64 */
"TEE", /**< Thumb EE - unsupported */
"Jaz", /**< Jazelle - unsupported in trace */
"Cst", /**< ISA custom */
"Unk" /**< ISA not yet known */
};
static const char *s_unsync_reason[] = {
"undefined", // UNSYNC_UNKNOWN - unknown /undefined
"init-decoder", // UNSYNC_INIT_DECODER - decoder intialisation - start of trace.
"reset-decoder", // UNSYNC_RESET_DECODER - decoder reset.
"overflow", // UNSYNC_OVERFLOW - overflow packet - need to re-sync
"discard", // UNSYNC_DISCARD - specl trace discard - need to re-sync
"bad-packet", // UNSYNC_BAD_PACKET - bad packet at input - resync to restart.
"bad-program-image", // UNSYNC_BAD_IMAGE - bad program image - resync to restart. */
"end-of-trace", // UNSYNC_EOT - end of trace info.
};
static const char *s_transaction_type[] = {
"Init",
"Start",
"Commit",
"Fail"
};
static const char *s_marker_t[] = {
"Timestamp marker", // ELEM_MARKER_TS
};
void OcsdTraceElement::toString(std::string &str) const
{
std::ostringstream oss;
int num_str = sizeof(s_elem_descs) / sizeof(s_elem_descs[0]);
int typeIdx = (int)this->elem_type;
std::string strEx;
if(typeIdx < num_str)
{
oss << s_elem_descs[typeIdx][0] << "(";
switch(elem_type)
{
case OCSD_GEN_TRC_ELEM_INSTR_RANGE:
oss << "exec range=0x" << std::hex << st_addr << ":[0x" << en_addr << "] ";
oss << "num_i(" << std::dec << num_instr_range << ") ";
oss << "last_sz(" << last_instr_sz << ") ";
oss << "(ISA=" << s_isa_str[(int)isa] << ") ";
oss << ((last_instr_exec == 1) ? "E " : "N ");
if((int)last_i_type < T_SIZE)
oss << instr_type[last_i_type];
if((last_i_subtype != OCSD_S_INSTR_NONE) && ((int)last_i_subtype < ST_SIZE))
oss << instr_sub_type[last_i_subtype];
if (last_instr_cond)
oss << " <cond>";
break;
case OCSD_GEN_TRC_ELEM_ADDR_NACC:
// exception number overridden to give mem space associated with NACC result.
TrcMemAccessorBase::getMemAccSpaceString(strEx, (ocsd_mem_space_acc_t)exception_number);
oss << " 0x" << std::hex << st_addr << "; Memspace [0x" << exception_number << ":" << strEx << "] ";
break;
case OCSD_GEN_TRC_ELEM_I_RANGE_NOPATH:
oss << "first 0x" << std::hex << st_addr << ":[next 0x" << en_addr << "] ";
oss << "num_i(" << std::dec << num_instr_range << ") ";
break;
case OCSD_GEN_TRC_ELEM_EXCEPTION:
if (excep_ret_addr == 1)
{
oss << "pref ret addr:0x" << std::hex << en_addr;
if (excep_ret_addr_br_tgt)
{
oss << " [addr also prev br tgt]";
}
oss << "; ";
}
oss << "excep num (0x" << std::setfill('0') << std::setw(2) << std::hex << exception_number << ") ";
break;
case OCSD_GEN_TRC_ELEM_PE_CONTEXT:
oss << "(ISA=" << s_isa_str[(int)isa] << ") ";
if((context.exception_level > ocsd_EL_unknown) && (context.el_valid))
{
oss << "EL" << std::dec << (int)(context.exception_level);
}
switch (context.security_level)
{
case ocsd_sec_secure: oss << "S; "; break;
case ocsd_sec_nonsecure: oss << "N; "; break;
case ocsd_sec_root: oss << "Root; "; break;
case ocsd_sec_realm: oss << "Realm; "; break;
}
oss << (context.bits64 ? "64-bit; " : "32-bit; ");
if(context.vmid_valid)
oss << "VMID=0x" << std::hex << context.vmid << "; ";
if(context.ctxt_id_valid)
oss << "CTXTID=0x" << std::hex << context.context_id << "; ";
break;
case OCSD_GEN_TRC_ELEM_TRACE_ON:
oss << " [" << s_trace_on_reason[trace_on_reason] << "]";
break;
case OCSD_GEN_TRC_ELEM_TIMESTAMP:
oss << " [ TS=0x" << std::setfill('0') << std::setw(12) << std::hex << timestamp << "]; ";
break;
case OCSD_GEN_TRC_ELEM_SWTRACE:
printSWInfoPkt(oss);
break;
case OCSD_GEN_TRC_ELEM_EVENT:
if(trace_event.ev_type == EVENT_TRIGGER)
oss << " Trigger; ";
else if(trace_event.ev_type == EVENT_NUMBERED)
oss << " Numbered:" << std::dec << trace_event.ev_number << "; ";
break;
case OCSD_GEN_TRC_ELEM_EO_TRACE:
case OCSD_GEN_TRC_ELEM_NO_SYNC:
if (unsync_eot_info <= UNSYNC_EOT)
oss << " [" << s_unsync_reason[unsync_eot_info] << "]";
break;
case OCSD_GEN_TRC_ELEM_SYNC_MARKER:
oss << " [" << s_marker_t[sync_marker.type] << "(0x" << std::setfill('0') << std::setw(8) << std::hex << sync_marker.value << ")]";
break;
case OCSD_GEN_TRC_ELEM_MEMTRANS:
if (mem_trans <= OCSD_MEM_TRANS_FAIL)
oss << s_transaction_type[mem_trans];
break;
case OCSD_GEN_TRC_ELEM_INSTRUMENTATION:
oss << "EL" << std::dec << (int)sw_ite.el << "; 0x" << std::setfill('0') << std::setw(16) << std::hex << sw_ite.value;
break;
default: break;
}
if(has_cc)
oss << std::dec << " [CC=" << cycle_count << "]; ";
oss << ")";
}
else
{
oss << "OCSD_GEN_TRC_ELEM??: index out of range.";
}
str = oss.str();
}
OcsdTraceElement &OcsdTraceElement::operator =(const ocsd_generic_trace_elem* p_elem)
{
*dynamic_cast<ocsd_generic_trace_elem*>(this) = *p_elem;
return *this;
}
void OcsdTraceElement::printSWInfoPkt(std::ostringstream & oss) const
{
if (!sw_trace_info.swt_global_err)
{
if (sw_trace_info.swt_id_valid)
{
oss << " (Ma:0x" << std::setfill('0') << std::setw(2) << std::hex << sw_trace_info.swt_master_id << "; ";
oss << "Ch:0x" << std::setfill('0') << std::setw(2) << std::hex << sw_trace_info.swt_channel_id << ") ";
}
else
oss << "(Ma:0x??; Ch:0x??" << ") ";
if (sw_trace_info.swt_payload_pkt_bitsize > 0)
{
oss << "0x" << std::setfill('0') << std::hex;
if (sw_trace_info.swt_payload_pkt_bitsize == 4)
{
oss << std::setw(1);
oss << (uint16_t)(((uint8_t *)ptr_extended_data)[0] & 0xF);
}
else
{
switch (sw_trace_info.swt_payload_pkt_bitsize)
{
case 8:
// force uint8 to uint16 so oss 'sees' them as something to be stringised, rather than absolute char values
oss << std::setw(2) << (uint16_t)((uint8_t *)ptr_extended_data)[0];
break;
case 16:
oss << std::setw(4) << ((uint16_t *)ptr_extended_data)[0];
break;
case 32:
oss << std::setw(8) << ((uint32_t *)ptr_extended_data)[0];
break;
case 64:
oss << std::setw(16) << ((uint64_t *)ptr_extended_data)[0];
break;
default:
oss << "{Data Error : unsupported bit width.}";
break;
}
}
oss << "; ";
}
if (sw_trace_info.swt_marker_packet)
oss << "+Mrk ";
if (sw_trace_info.swt_trigger_event)
oss << "Trig ";
if (sw_trace_info.swt_has_timestamp)
oss << " [ TS=0x" << std::setfill('0') << std::setw(12) << std::hex << timestamp << "]; ";
if (sw_trace_info.swt_frequency)
oss << "Freq";
if (sw_trace_info.swt_master_err)
oss << "{Master Error.}";
}
else
{
oss << "{Global Error.}";
}
}
/*
void OcsdTraceElement::toString(const ocsd_generic_trace_elem *p_elem, std::string &str)
{
OcsdTraceElement elem;
elem = p_elem;
elem.toString(str);
}
*/
/* End of File trc_gen_elem.cpp */
|
