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target/espressif: add application tracing functionality over JTAG

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This feature allows to transfer arbitrary data between host and
ESP32 via JTAG.

The main use cases:

1- Collecting application specific data
2- Lightweight logging to the host
3- System behaviour analysis with SEGGER SystemView
4- Source code coverage

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: I95dee00ac22891fa326915a3fcac3c088cbb2afc
Reviewed-on: https://review.openocd.org/c/openocd/+/7163
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Erhan Kurubas
2022-08-25 15:38:34 +03:00
committed by Antonio Borneo
parent 0384fe5d59
commit 8d1dcf293a
11 changed files with 2099 additions and 0 deletions
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2
src/target/espressif/esp_xtensa.c
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@@ -12,6 +12,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <target/smp.h>
#include "esp_xtensa_apptrace.h"
#include <target/register.h>
#include "esp_xtensa.h"
#include "esp_semihosting.h"
@@ -25,6 +26,7 @@ int esp_xtensa_init_arch_info(struct target *target,
if (ret != ERROR_OK)
return ret;
esp_xtensa->semihost.ops = (struct esp_semihost_ops *)semihost_ops;
esp_xtensa->apptrace.hw = &esp_xtensa_apptrace_hw;
return ERROR_OK;
}