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Diffstat (limited to 'decoder/source/trc_gen_elem.cpp')
| -rw-r--r-- | decoder/source/trc_gen_elem.cpp | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/decoder/source/trc_gen_elem.cpp b/decoder/source/trc_gen_elem.cpp new file mode 100644 index 0000000..b2e6772 --- /dev/null +++ b/decoder/source/trc_gen_elem.cpp @@ -0,0 +1,311 @@ +/* + * \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 <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."}, + {"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_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. + "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; + 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: + oss << " 0x" << std::hex << st_addr << " "; + 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; + + 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 */ |