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T32SIM: Integrating Tracing feature of the T32SIM.

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After each simulator break, T32Tracer retrieves the latest (16)
trace records from the T32. Memory address and value can now
be evaluated easily from the trace record.

TODO:Nevertheless we still have to traverse the trace to
find the instruction causing the access.
This commit is contained in:
Martin Hoffmann
2013-03-21 17:59:21 +01:00
parent 4e8098a636
commit b8e706b1a5
17 changed files with 270 additions and 26 deletions
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76
debuggers/t32/include/T32TraceFormat.hpp Normal file
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#ifndef __T32TRACEFORMAT_H__
#define __T32TRACEFORMAT_H__
#include <string>
#include <stdint.h>
namespace fail {
struct T32TraceHeader {
uint8_t export_file_header_string[32];
uint8_t reserved_32;
uint8_t cpu_code;
uint8_t timestamp_available;
uint8_t prestore_mode;
uint8_t trigger_unit_available;
uint8_t port_analyzer_avaiable_mode;
uint8_t analyzer_type;
uint8_t reserved_39;
uint32_t record_length; // in bytes
uint32_t number_of_records; // in the file
uint32_t last_record;
uint32_t referenced_record;
uint8_t reserved_56_63[8];
};
struct T32TraceRecord {
struct {
uint32_t data_cycle :1; // bit 0
uint32_t program_cycle :1; // bit 1
uint32_t reserved_2_5 : 4; // bits 2-5
uint32_t write_cycle : 1; // bit 6
uint32_t reserved_7_20 : 14 ;// bits 7-20
uint32_t flow_error : 1; // bit 21
uint32_t reserved_22_24 : 3; //bits 22-24
uint32_t fifo_overflow : 1; // bit 25
uint32_t reserved_26_30 : 5; // bits 26-30
uint32_t ownership_cycle :1; // bit 31
} cycle_information;
// data byte enable mask
uint8_t data_byte_valid; // bit0 : byte0 valid, ...
struct {
uint8_t exec_signal : 1;
uint8_t thumb_mode : 1;
uint8_t arm_mode : 1;
uint8_t reserved_3_4 : 2;
uint8_t not_executed : 1;
uint8_t executed : 1;
uint8_t reserved_6_7 : 1;
} cpu_info;
uint8_t reserved_6;
uint8_t core_number; // only on SMP targets
uint32_t bus_data_address; // bus/data
uint32_t pflow_address; // or upper part
uint64_t data;
uint64_t timestamp; // relative to ZERO in ns
bool isDataAccess(void) const { return cycle_information.data_cycle == 1; };
bool isProgram(void) const { return cycle_information.program_cycle == 1; };
bool isDataRead(void) const { return cycle_information.data_cycle && !cycle_information.write_cycle; };
bool isDataWrite(void) const { return cycle_information.data_cycle && cycle_information.write_cycle; };
uint32_t getAddress(void) const { return bus_data_address; };
uint32_t getData(void) const { return data; };
};
//<! This allows to print a record via Logger or cout
std::ostream& operator <<(std::ostream & os, const fail::T32TraceRecord & r);
};
#endif // __T32TRACEFORMAT_H__