| /* |
| * \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_CUSTOM","Fully custom packet type."} |
| }; |
| |
| static const char *instr_type[] = { |
| "--- ", |
| "BR ", |
| "iBR ", |
| "ISB ", |
| "DSB.DMB", |
| "WFI.WFE" |
| }; |
| |
| #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. |
| }; |
| |
| void OcsdTraceElement::toString(std::string &str) const |
| { |
| std::ostringstream oss; |
| int num_str = ((sizeof(s_elem_descs) / sizeof(const char *)) / 2); |
| 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); |
| } |
| oss << (context.security_level == ocsd_sec_secure ? "S; " : "N; ") << (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; |
| |
| 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 */ |
