esp-idf/components/app_trace/gcov/gcov_rtio.c

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// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This module implements runtime file I/O API for GCOV.
#include "esp_task_wdt.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "soc/cpu.h"
#include "soc/timer_group_struct.h"
#include "soc/timer_group_reg.h"
#include "esp_app_trace.h"
#if CONFIG_ESP32_APPTRACE_ENABLE
#define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL
#include "esp_log.h"
const static char *TAG = "esp_gcov_rtio";
static void (*s_gcov_exit)(void);
static uint8_t s_gcov_down_buf[256];
void esp_gcov_dump()
{
#if CONFIG_FREERTOS_UNICORE == 0
esp_cpu_stall(!xPortGetCoreID());
#endif
while (!esp_apptrace_host_is_connected(ESP_APPTRACE_DEST_TRAX)) {
// to avoid complains that task watchdog got triggered for other tasks
TIMERG0.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
TIMERG0.wdt_feed=1;
TIMERG0.wdt_wprotect=0;
// to avoid reboot on INT_WDT
TIMERG1.wdt_wprotect=TIMG_WDT_WKEY_VALUE;
TIMERG1.wdt_feed=1;
TIMERG1.wdt_wprotect=0;
}
if (s_gcov_exit) {
esp_apptrace_down_buffer_config(s_gcov_down_buf, sizeof(s_gcov_down_buf));
s_gcov_exit();
}
int ret = esp_apptrace_fstop(ESP_APPTRACE_DEST_TRAX);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "Failed to send files transfer stop cmd (%d)!\n", ret);
}
}
int gcov_rtio_atexit(void (*function)(void))
{
s_gcov_exit = function;
return 0;
}
void *gcov_rtio_fopen(const char *path, const char *mode)
{
return esp_apptrace_fopen(ESP_APPTRACE_DEST_TRAX, path, mode);
}
int gcov_rtio_fclose(void *stream)
{
return esp_apptrace_fclose(ESP_APPTRACE_DEST_TRAX, stream);
}
size_t gcov_rtio_fwrite(const void *ptr, size_t size, size_t nmemb, void *stream)
{
return esp_apptrace_fwrite(ESP_APPTRACE_DEST_TRAX, ptr, size, nmemb, stream);
}
int gcov_rtio_fseek(void *stream, long offset, int whence)
{
return esp_apptrace_fseek(ESP_APPTRACE_DEST_TRAX, stream, offset, whence);
}
long gcov_rtio_ftell(void *stream)
{
return esp_apptrace_ftell(ESP_APPTRACE_DEST_TRAX, stream);
}
#endif