1 /* 2 * Trace Recorder for Tracealyzer v4.6.6 3 * Copyright 2021 Percepio AB 4 * www.percepio.com 5 * 6 * SPDX-License-Identifier: Apache-2.0 7 * 8 * Main configuration parameters for the trace recorder library. 9 * More settings can be found in trcStreamingConfig.h and trcSnapshotConfig.h. 10 */ 11 12 #ifndef TRC_CONFIG_H 13 #define TRC_CONFIG_H 14 15 #ifdef __cplusplus 16 extern "C" { 17 #endif 18 19 /****************************************************************************** 20 * Include of processor header file 21 * 22 * Here you may need to include the header file for your processor. This is 23 * required at least for the ARM Cortex-M port, that uses the ARM CMSIS API. 24 * Try that in case of build problems. Otherwise, remove the #error line below. 25 *****************************************************************************/ 26 #error "Trace Recorder: Please include your processor's header file here and remove this line." 27 28 /** 29 * @def TRC_CFG_HARDWARE_PORT 30 * @brief Specify what hardware port to use (i.e., the "timestamping driver"). 31 * 32 * All ARM Cortex-M MCUs are supported by "TRC_HARDWARE_PORT_ARM_Cortex_M". 33 * This port uses the DWT cycle counter for Cortex-M3/M4/M7 devices, which is 34 * available on most such devices. In case your device don't have DWT support, 35 * you will get an error message opening the trace. In that case, you may 36 * force the recorder to use SysTick timestamping instead, using this define: 37 * 38 * #define TRC_CFG_ARM_CM_USE_SYSTICK 39 * 40 * For ARM Cortex-M0/M0+ devices, SysTick mode is used automatically. 41 * 42 * See trcHardwarePort.h for available ports and information on how to 43 * define your own port, if not already present. 44 */ 45 #define TRC_CFG_HARDWARE_PORT TRC_HARDWARE_PORT_NOT_SET 46 47 /** 48 * @def TRC_CFG_SCHEDULING_ONLY 49 * @brief Macro which should be defined as an integer value. 50 * 51 * If this setting is enabled (= 1), only scheduling events are recorded. 52 * If disabled (= 0), all events are recorded (unless filtered in other ways). 53 * 54 * Default value is 0 (= include additional events). 55 */ 56 #define TRC_CFG_SCHEDULING_ONLY 0 57 58 /** 59 * @def TRC_CFG_INCLUDE_MEMMANG_EVENTS 60 * @brief Macro which should be defined as either zero (0) or one (1). 61 * 62 * This controls if malloc and free calls should be traced. Set this to zero (0) 63 * to exclude malloc/free calls, or one (1) to include such events in the trace. 64 * 65 * Default value is 1. 66 */ 67 #define TRC_CFG_INCLUDE_MEMMANG_EVENTS 1 68 69 /** 70 * @def TRC_CFG_INCLUDE_USER_EVENTS 71 * @brief Macro which should be defined as either zero (0) or one (1). 72 * 73 * If this is zero (0), all code related to User Events is excluded in order 74 * to reduce code size. Any attempts of storing User Events are then silently 75 * ignored. 76 * 77 * User Events are application-generated events, like "printf" but for the 78 * trace log, generated using vTracePrint and vTracePrintF. 79 * The formatting is done on host-side, by Tracealyzer. User Events are 80 * therefore much faster than a console printf and can often be used 81 * in timing critical code without problems. 82 * 83 * Note: In streaming mode, User Events are used to provide error messages 84 * and warnings from the recorder (in case of incorrect configuration) for 85 * display in Tracealyzer. Disabling user events will also disable these 86 * warnings. You can however still catch them by calling xTraceErrorGetLast 87 * or by putting breakpoints in xTraceError and xTraceWarning. 88 * 89 * Default value is 1. 90 */ 91 #define TRC_CFG_INCLUDE_USER_EVENTS 1 92 93 /** 94 * @def TRC_CFG_INCLUDE_ISR_TRACING 95 * @brief Macro which should be defined as either zero (0) or one (1). 96 * 97 * If this is zero (0), the code for recording Interrupt Service Routines is 98 * excluded, in order to reduce code size. This means that any calls to 99 * vTraceStoreISRBegin/vTraceStoreISREnd will be ignored. 100 * This does not completely disable ISR tracing, in cases where an ISR is 101 * calling a traced kernel service. These events will still be recorded and 102 * show up in anonymous ISR instances in Tracealyzer, with names such as 103 * "ISR sending to <queue name>". 104 * To disable such tracing, please refer to vTraceSetFilterGroup and 105 * vTraceSetFilterMask. 106 * 107 * Default value is 1. 108 * 109 * Note: tracing ISRs requires that you insert calls to vTraceStoreISRBegin 110 * and vTraceStoreISREnd in your interrupt handlers. 111 */ 112 #define TRC_CFG_INCLUDE_ISR_TRACING 1 113 114 /** 115 * @def TRC_CFG_INCLUDE_READY_EVENTS 116 * @brief Macro which should be defined as either zero (0) or one (1). 117 * 118 * If one (1), events are recorded when tasks enter scheduling state "ready". 119 * This allows Tracealyzer to show the initial pending time before tasks enter 120 * the execution state, and present accurate response times. 121 * If zero (0), "ready events" are not created, which allows for recording 122 * longer traces in the same amount of RAM. 123 * 124 * Default value is 1. 125 */ 126 #define TRC_CFG_INCLUDE_READY_EVENTS 1 127 128 /** 129 * @def TRC_CFG_INCLUDE_OSTICK_EVENTS 130 * @brief Macro which should be defined as either zero (0) or one (1). 131 * 132 * If this is one (1), events will be generated whenever the OS clock is 133 * increased. If zero (0), OS tick events are not generated, which allows for 134 * recording longer traces in the same amount of RAM. 135 * 136 * Default value is 1. 137 */ 138 #define TRC_CFG_INCLUDE_OSTICK_EVENTS 1 139 140 /** 141 * @def TRC_CFG_ENABLE_STACK_MONITOR 142 * @brief If enabled (1), the recorder periodically reports the unused stack space of 143 * all active tasks. 144 * The stack monitoring runs in the Tracealyzer Control task, TzCtrl. This task 145 * is always created by the recorder when in streaming mode. 146 * In snapshot mode, the TzCtrl task is only used for stack monitoring and is 147 * not created unless this is enabled. 148 */ 149 #define TRC_CFG_ENABLE_STACK_MONITOR 1 150 151 /** 152 * @def TRC_CFG_STACK_MONITOR_MAX_TASKS 153 * @brief Macro which should be defined as a non-zero integer value. 154 * 155 * This controls how many tasks that can be monitored by the stack monitor. 156 * If this is too small, some tasks will be excluded and a warning is shown. 157 * 158 * Default value is 10. 159 */ 160 #define TRC_CFG_STACK_MONITOR_MAX_TASKS 10 161 162 /** 163 * @def TRC_CFG_STACK_MONITOR_MAX_REPORTS 164 * @brief Macro which should be defined as a non-zero integer value. 165 * 166 * This defines how many tasks that will be subject to stack usage analysis for 167 * each execution of the Tracealyzer Control task (TzCtrl). Note that the stack 168 * monitoring cycles between the tasks, so this does not affect WHICH tasks that 169 * are monitored, but HOW OFTEN each task stack is analyzed. 170 * 171 * This setting can be combined with TRC_CFG_CTRL_TASK_DELAY to tune the 172 * frequency of the stack monitoring. This is motivated since the stack analysis 173 * can take some time to execute. 174 * However, note that the stack analysis runs in a separate task (TzCtrl) that 175 * can be executed on low priority. This way, you can avoid that the stack 176 * analysis disturbs any time-sensitive tasks. 177 * 178 * Default value is 1. 179 */ 180 #define TRC_CFG_STACK_MONITOR_MAX_REPORTS 1 181 182 /** 183 * @def TRC_CFG_CTRL_TASK_PRIORITY 184 * @brief The scheduling priority of the Tracealyzer Control (TzCtrl) task. 185 * 186 * In streaming mode, TzCtrl is used to receive start/stop commands from 187 * Tracealyzer and in some cases also to transmit the trace data (for stream 188 * ports that uses the internal buffer, like TCP/IP). For such stream ports, 189 * make sure the TzCtrl priority is high enough to ensure reliable periodic 190 * execution and transfer of the data, but low enough to avoid disturbing any 191 * time-sensitive functions. 192 * 193 * In Snapshot mode, TzCtrl is only used for the stack usage monitoring and is 194 * not created if stack monitoring is disabled. TRC_CFG_CTRL_TASK_PRIORITY should 195 * be low, to avoid disturbing any time-sensitive tasks. 196 */ 197 #define TRC_CFG_CTRL_TASK_PRIORITY 1 198 199 /** 200 * @def TRC_CFG_CTRL_TASK_DELAY 201 * @brief The delay between loops of the TzCtrl task (see TRC_CFG_CTRL_TASK_PRIORITY), 202 * which affects the frequency of the stack monitoring. 203 * 204 * In streaming mode, this also affects the trace data transfer if you are using 205 * a stream port leveraging the internal buffer (like TCP/IP). A shorter delay 206 * increases the CPU load of TzCtrl somewhat, but may improve the performance of 207 * of the trace streaming, especially if the trace buffer is small. 208 */ 209 #define TRC_CFG_CTRL_TASK_DELAY 2 210 211 /** 212 * @def TRC_CFG_CTRL_TASK_STACK_SIZE 213 * @brief The stack size of the Tracealyzer Control (TzCtrl) task. 214 * See TRC_CFG_CTRL_TASK_PRIORITY for further information about TzCtrl. 215 */ 216 #define TRC_CFG_CTRL_TASK_STACK_SIZE 1024 217 218 /** 219 * @def TRC_CFG_RECORDER_BUFFER_ALLOCATION 220 * @brief Specifies how the recorder buffer is allocated (also in case of streaming, in 221 * port using the recorder's internal temporary buffer) 222 * 223 * Values: 224 * TRC_RECORDER_BUFFER_ALLOCATION_STATIC - Static allocation (internal) 225 * TRC_RECORDER_BUFFER_ALLOCATION_DYNAMIC - Malloc in vTraceEnable 226 * TRC_RECORDER_BUFFER_ALLOCATION_CUSTOM - Use vTraceSetRecorderDataBuffer 227 * 228 * Static and dynamic mode does the allocation for you, either in compile time 229 * (static) or in runtime (malloc). 230 * The custom mode allows you to control how and where the allocation is made, 231 * for details see TRC_ALLOC_CUSTOM_BUFFER and vTraceSetRecorderDataBuffer(). 232 */ 233 #define TRC_CFG_RECORDER_BUFFER_ALLOCATION TRC_RECORDER_BUFFER_ALLOCATION_STATIC 234 235 /** 236 * @def TRC_CFG_MAX_ISR_NESTING 237 * @brief Defines how many levels of interrupt nesting the recorder can handle, in 238 * case multiple ISRs are traced and ISR nesting is possible. If this 239 * is exceeded, the particular ISR will not be traced and the recorder then 240 * logs an error message. This setting is used to allocate an internal stack 241 * for keeping track of the previous execution context (4 byte per entry). 242 * 243 * This value must be a non-zero positive constant, at least 1. 244 * 245 * Default value: 8 246 */ 247 #define TRC_CFG_MAX_ISR_NESTING 8 248 249 /** 250 * @def TRC_CFG_ISR_TAILCHAINING_THRESHOLD 251 * @brief Macro which should be defined as an integer value. 252 * 253 * If tracing multiple ISRs, this setting allows for accurate display of the 254 * context-switching also in cases when the ISRs execute in direct sequence. 255 * 256 * vTraceStoreISREnd normally assumes that the ISR returns to the previous 257 * context, i.e., a task or a preempted ISR. But if another traced ISR 258 * executes in direct sequence, Tracealyzer may incorrectly display a minimal 259 * fragment of the previous context in between the ISRs. 260 * 261 * By using TRC_CFG_ISR_TAILCHAINING_THRESHOLD you can avoid this. This is 262 * however a threshold value that must be measured for your specific setup. 263 * See http://percepio.com/2014/03/21/isr_tailchaining_threshold/ 264 * 265 * The default setting is 0, meaning "disabled" and that you may get an 266 * extra fragments of the previous context in between tail-chained ISRs. 267 * 268 * Note: This setting has separate definitions in trcSnapshotConfig.h and 269 * trcStreamingConfig.h, since it is affected by the recorder mode. 270 */ 271 #define TRC_CFG_ISR_TAILCHAINING_THRESHOLD 0 272 273 /** 274 * @def TRC_CFG_RECORDER_DATA_INIT 275 * @brief Macro which states wether the recorder data should have an initial value. 276 * 277 * In very specific cases where traced objects are created before main(), 278 * the recorder will need to be started even before that. In these cases, 279 * the recorder data would be initialized by vTraceEnable(TRC_INIT) but could 280 * then later be overwritten by the initialization value. 281 * If this is an issue for you, set TRC_CFG_RECORDER_DATA_INIT to 0. 282 * The following code can then be used before any traced objects are created: 283 * 284 * extern uint32_t RecorderEnabled; 285 * RecorderEnabled = 0; 286 * xTraceInitialize(); 287 * 288 * After the clocks are properly initialized, use vTraceEnable(...) to start 289 * the tracing. 290 * 291 * Default value is 1. 292 */ 293 #define TRC_CFG_RECORDER_DATA_INIT 1 294 295 /** 296 * @def TRC_CFG_RECORDER_DATA_ATTRIBUTE 297 * @brief When setting TRC_CFG_RECORDER_DATA_INIT to 0, you might also need to make 298 * sure certain recorder data is placed in a specific RAM section to avoid being 299 * zeroed out after initialization. Define TRC_CFG_RECORDER_DATA_ATTRIBUTE as 300 * that attribute. 301 * 302 * Example: 303 * #define TRC_CFG_RECORDER_DATA_ATTRIBUTE __attribute__((section(".bss.trace_recorder_data"))) 304 * 305 * Default value is empty. 306 */ 307 #define TRC_CFG_RECORDER_DATA_ATTRIBUTE 308 309 /** 310 * @def TRC_CFG_USE_TRACE_ASSERT 311 * @brief Enable or disable debug asserts. Information regarding any assert that is 312 * triggered will be in trcAssert.c. 313 */ 314 #define TRC_CFG_USE_TRACE_ASSERT 0 315 316 #ifdef __cplusplus 317 } 318 #endif 319 320 #endif /* _TRC_CONFIG_H */ 321
