129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This module implements runtime file I/O API for GCOV.
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#include "esp_task_wdt.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "soc/cpu.h"
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#include "soc/timer_periph.h"
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#include "esp_app_trace.h"
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#include "esp_private/dbg_stubs.h"
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#include "hal/timer_ll.h"
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#if CONFIG_ESP32_GCOV_ENABLE
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#define ESP_GCOV_DOWN_BUF_SIZE 4200
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#define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL
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#include "esp_log.h"
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const static char *TAG = "esp_gcov_rtio";
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extern void __gcov_dump(void);
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extern void __gcov_reset(void);
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static int esp_dbg_stub_gcov_dump_do(void)
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{
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int ret = ESP_OK;
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ESP_EARLY_LOGV(TAG, "Alloc apptrace down buf %d bytes", ESP_GCOV_DOWN_BUF_SIZE);
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void *down_buf = malloc(ESP_GCOV_DOWN_BUF_SIZE);
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if (down_buf == NULL) {
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ESP_EARLY_LOGE(TAG, "Could not allocate memory for the buffer");
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return ESP_ERR_NO_MEM;
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}
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ESP_EARLY_LOGV(TAG, "Config apptrace down buf");
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esp_apptrace_down_buffer_config(down_buf, ESP_GCOV_DOWN_BUF_SIZE);
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ESP_EARLY_LOGV(TAG, "Dump data...");
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__gcov_dump();
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// reset dump status to allow incremental data accumulation
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__gcov_reset();
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ESP_EARLY_LOGV(TAG, "Free apptrace down buf");
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free(down_buf);
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ESP_EARLY_LOGV(TAG, "Finish file transfer session");
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ret = esp_apptrace_fstop(ESP_APPTRACE_DEST_TRAX);
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if (ret != ESP_OK) {
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ESP_EARLY_LOGE(TAG, "Failed to send files transfer stop cmd (%d)!", ret);
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}
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return ret;
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}
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void esp_gcov_dump(void)
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{
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// disable IRQs on this CPU, other CPU is halted by OpenOCD
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unsigned irq_state = portENTER_CRITICAL_NESTED();
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#if !CONFIG_FREERTOS_UNICORE
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int other_core = xPortGetCoreID() ? 0 : 1;
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esp_cpu_stall(other_core);
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#endif
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while (!esp_apptrace_host_is_connected(ESP_APPTRACE_DEST_TRAX)) {
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// to avoid complains that task watchdog got triggered for other tasks
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timer_ll_wdt_set_protect(&TIMERG0, false);
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timer_ll_wdt_feed(&TIMERG0);
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timer_ll_wdt_set_protect(&TIMERG0, true);
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// to avoid reboot on INT_WDT
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timer_ll_wdt_set_protect(&TIMERG1, false);
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timer_ll_wdt_feed(&TIMERG1);
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timer_ll_wdt_set_protect(&TIMERG1, true);
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}
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esp_dbg_stub_gcov_dump_do();
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#if !CONFIG_FREERTOS_UNICORE
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esp_cpu_unstall(other_core);
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#endif
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portEXIT_CRITICAL_NESTED(irq_state);
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}
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void *gcov_rtio_fopen(const char *path, const char *mode)
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{
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ESP_EARLY_LOGV(TAG, "%s '%s' '%s'", __FUNCTION__, path, mode);
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return esp_apptrace_fopen(ESP_APPTRACE_DEST_TRAX, path, mode);
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}
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int gcov_rtio_fclose(void *stream)
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{
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ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
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return esp_apptrace_fclose(ESP_APPTRACE_DEST_TRAX, stream);
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}
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size_t gcov_rtio_fread(void *ptr, size_t size, size_t nmemb, void *stream)
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{
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ESP_EARLY_LOGV(TAG, "%s read %u", __FUNCTION__, size*nmemb);
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size_t sz = esp_apptrace_fread(ESP_APPTRACE_DEST_TRAX, ptr, size, nmemb, stream);
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ESP_EARLY_LOGV(TAG, "%s actually read %u", __FUNCTION__, sz);
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return sz;
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}
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size_t gcov_rtio_fwrite(const void *ptr, size_t size, size_t nmemb, void *stream)
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{
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ESP_EARLY_LOGV(TAG, "%s", __FUNCTION__);
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return esp_apptrace_fwrite(ESP_APPTRACE_DEST_TRAX, ptr, size, nmemb, stream);
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}
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int gcov_rtio_fseek(void *stream, long offset, int whence)
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{
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int ret = esp_apptrace_fseek(ESP_APPTRACE_DEST_TRAX, stream, offset, whence);
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ESP_EARLY_LOGV(TAG, "%s(%p %ld %d) = %d", __FUNCTION__, stream, offset, whence, ret);
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return ret;
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}
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long gcov_rtio_ftell(void *stream)
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{
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long ret = esp_apptrace_ftell(ESP_APPTRACE_DEST_TRAX, stream);
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ESP_EARLY_LOGV(TAG, "%s(%p) = %ld", __FUNCTION__, stream, ret);
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return ret;
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}
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#endif
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