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esp32: Adds functionality for application tracing over JTAG

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- Implements application tracing module which allows to send arbitrary
   data to host over JTAG. This feature is useful for analyzing
   program modules behavior, dumping run-time application data etc.
 - Implements printf-like logging functions on top of apptrace module.
   This feature is a kind of semihosted printf functionality with lower
   overhead and impact on system behaviour as compared to standard printf.
This commit is contained in:
Alexey Gerenkov
2017-01-25 19:35:28 +03:00
parent ad50a70440
commit 55f1a63faf
22 changed files with 5135 additions and 61 deletions
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13
components/esp32/cpu_start.c
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@@ -59,6 +59,7 @@
#include "esp_coexist.h"
#include "esp_panic.h"
#include "esp_core_dump.h"
#include "esp_app_trace.h"
#include "trax.h"
#define STRINGIFY(s) STRINGIFY2(s)
@@ -221,6 +222,12 @@ void start_cpu0_default(void)
_GLOBAL_REENT->_stdin = (FILE*) &__sf_fake_stdin;
_GLOBAL_REENT->_stdout = (FILE*) &__sf_fake_stdout;
_GLOBAL_REENT->_stderr = (FILE*) &__sf_fake_stderr;
#endif
#if CONFIG_ESP32_APPTRACE_ENABLE
esp_err_t err = esp_apptrace_init();
if (err != ESP_OK) {
ESP_EARLY_LOGE(TAG, "Failed to init apptrace module on CPU0 (%d)!", err);
}
#endif
do_global_ctors();
#if CONFIG_INT_WDT
@@ -252,6 +259,12 @@ void start_cpu1_default(void)
{
#if CONFIG_ESP32_TRAX_TWOBANKS
trax_start_trace(TRAX_DOWNCOUNT_WORDS);
#endif
#if CONFIG_ESP32_APPTRACE_ENABLE
esp_err_t err = esp_apptrace_init();
if (err != ESP_OK) {
ESP_EARLY_LOGE(TAG, "Failed to init apptrace module on CPU1 (%d)!", err);
}
#endif
// Wait for FreeRTOS initialization to finish on PRO CPU
while (port_xSchedulerRunning[0] == 0) {