mirror of
https://github.com/espressif/esp-idf.git
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71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_debug_helpers.h"
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#include "esp_private/panic_reason.h"
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#include "esp_private/panic_internal.h"
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_private/freertos_debug.h"
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#include "esp_err.h"
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#include "esp_private/esp_system_attr.h"
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#include "esp_private/esp_cpu_internal.h"
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#include <string.h>
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#if CONFIG_ESP_SYSTEM_USE_EH_FRAME
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#include "esp_private/eh_frame_parser.h"
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#elif CONFIG_ESP_SYSTEM_USE_FRAME_POINTER
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extern void esp_fp_print_backtrace(const void*);
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#else // !CONFIG_ESP_SYSTEM_USE_EH_FRAME && !
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/* Function used to print all the registers pointed by the given frame .*/
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extern void panic_print_registers(const void *frame, int core);
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#endif // CONFIG_ESP_SYSTEM_USE_EH_FRAME
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/* Targets based on a RISC-V CPU cannot perform backtracing that easily.
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* We have two options here:
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* - Perform backtracing at runtime thanks to the configuration options
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* CONFIG_ESP_SYSTEM_USE_EH_FRAME and CONFIG_ESP_SYSTEM_USE_FRAME_POINTER.
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* - Let IDF monitor do the backtracing for us. Used during panic already.
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*
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* In both cases, this takes time, and we might be in an ISR, we must
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* exit this handler as fast as possible, then we will simply print
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* the interruptee's registers.
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*/
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esp_err_t ESP_SYSTEM_IRAM_ATTR esp_backtrace_print(int depth)
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{
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(void)depth;
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const int current_core = xPortGetCoreID();
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TaskSnapshot_t snapshot = { 0 };
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BaseType_t ret = vTaskGetSnapshot(xTaskGetCurrentTaskHandleForCore(current_core), &snapshot);
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if (ret != pdTRUE) {
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return ESP_ERR_NOT_FOUND;
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}
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void *frame = snapshot.pxTopOfStack;
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esp_cpu_frame_t backtrace_frame = {};
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memcpy(&backtrace_frame, frame, sizeof(esp_cpu_frame_t));
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#if CONFIG_ESP_SYSTEM_USE_EH_FRAME
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esp_eh_frame_print_backtrace(frame);
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#elif CONFIG_ESP_SYSTEM_USE_FRAME_POINTER
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esp_fp_print_backtrace(frame);
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#else // CONFIG_ESP_SYSTEM_USE_EH_FRAME
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panic_prepare_frame_from_ctx(&backtrace_frame);
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panic_print_registers(&backtrace_frame, current_core);
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esp_rom_printf("\r\n");
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esp_rom_printf("Please enable CONFIG_ESP_SYSTEM_USE_FRAME_POINTER option to have a full backtrace.\r\n");
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#endif // CONFIG_ESP_SYSTEM_USE_EH_FRAME
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return ESP_OK;
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}
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